2 * mini-ppc.c: PowerPC backend for the Mono code generator
5 * Paolo Molaro (lupus@ximian.com)
6 * Dietmar Maurer (dietmar@ximian.com)
7 * Andreas Faerber <andreas.faerber@web.de>
9 * (C) 2003 Ximian, Inc.
10 * (C) 2007-2008 Andreas Faerber
15 #include <mono/metadata/abi-details.h>
16 #include <mono/metadata/appdomain.h>
17 #include <mono/metadata/debug-helpers.h>
18 #include <mono/utils/mono-proclib.h>
19 #include <mono/utils/mono-mmap.h>
20 #include <mono/utils/mono-hwcap-ppc.h>
23 #ifdef TARGET_POWERPC64
24 #include "cpu-ppc64.h"
31 #include <sys/sysctl.h>
37 #define FORCE_INDIR_CALL 1
48 /* cpu_hw_caps contains the flags defined below */
49 static int cpu_hw_caps = 0;
50 static int cachelinesize = 0;
51 static int cachelineinc = 0;
53 PPC_ICACHE_SNOOP = 1 << 0,
54 PPC_MULTIPLE_LS_UNITS = 1 << 1,
55 PPC_SMP_CAPABLE = 1 << 2,
58 PPC_MOVE_FPR_GPR = 1 << 5,
62 #define BREAKPOINT_SIZE (PPC_LOAD_SEQUENCE_LENGTH + 4)
64 /* This mutex protects architecture specific caches */
65 #define mono_mini_arch_lock() mono_mutex_lock (&mini_arch_mutex)
66 #define mono_mini_arch_unlock() mono_mutex_unlock (&mini_arch_mutex)
67 static mono_mutex_t mini_arch_mutex;
69 int mono_exc_esp_offset = 0;
70 static int tls_mode = TLS_MODE_DETECT;
71 static int lmf_pthread_key = -1;
74 * The code generated for sequence points reads from this location, which is
75 * made read-only when single stepping is enabled.
77 static gpointer ss_trigger_page;
79 /* Enabled breakpoints read from this trigger page */
80 static gpointer bp_trigger_page;
83 offsets_from_pthread_key (guint32 key, int *offset2)
87 *offset2 = idx2 * sizeof (gpointer);
88 return 284 + idx1 * sizeof (gpointer);
91 #define emit_linuxthreads_tls(code,dreg,key) do {\
93 off1 = offsets_from_pthread_key ((key), &off2); \
94 ppc_ldptr ((code), (dreg), off1, ppc_r2); \
95 ppc_ldptr ((code), (dreg), off2, (dreg)); \
98 #define emit_darwing5_tls(code,dreg,key) do {\
99 int off1 = 0x48 + key * sizeof (gpointer); \
100 ppc_mfspr ((code), (dreg), 104); \
101 ppc_ldptr ((code), (dreg), off1, (dreg)); \
104 /* FIXME: ensure the sc call preserves all but r3 */
105 #define emit_darwing4_tls(code,dreg,key) do {\
106 int off1 = 0x48 + key * sizeof (gpointer); \
107 if ((dreg) != ppc_r3) ppc_mr ((code), ppc_r12, ppc_r3); \
108 ppc_li ((code), ppc_r0, 0x7FF2); \
110 ppc_lwz ((code), (dreg), off1, ppc_r3); \
111 if ((dreg) != ppc_r3) ppc_mr ((code), ppc_r3, ppc_r12); \
114 #ifdef PPC_THREAD_PTR_REG
115 #define emit_nptl_tls(code,dreg,key) do { \
117 int off2 = key >> 15; \
118 if ((off2 == 0) || (off2 == -1)) { \
119 ppc_ldptr ((code), (dreg), off1, PPC_THREAD_PTR_REG); \
121 int off3 = (off2 + 1) > 1; \
122 ppc_addis ((code), ppc_r12, PPC_THREAD_PTR_REG, off3); \
123 ppc_ldptr ((code), (dreg), off1, ppc_r12); \
127 #define emit_nptl_tls(code,dreg,key) do { \
128 g_assert_not_reached (); \
132 #define emit_tls_access(code,dreg,key) do { \
133 switch (tls_mode) { \
134 case TLS_MODE_LTHREADS: emit_linuxthreads_tls(code,dreg,key); break; \
135 case TLS_MODE_NPTL: emit_nptl_tls(code,dreg,key); break; \
136 case TLS_MODE_DARWIN_G5: emit_darwing5_tls(code,dreg,key); break; \
137 case TLS_MODE_DARWIN_G4: emit_darwing4_tls(code,dreg,key); break; \
138 default: g_assert_not_reached (); \
142 #define MONO_EMIT_NEW_LOAD_R8(cfg,dr,addr) do { \
144 MONO_INST_NEW ((cfg), (inst), OP_R8CONST); \
145 inst->type = STACK_R8; \
147 inst->inst_p0 = (void*)(addr); \
148 mono_bblock_add_inst (cfg->cbb, inst); \
152 mono_arch_regname (int reg) {
153 static const char rnames[][4] = {
154 "r0", "sp", "r2", "r3", "r4",
155 "r5", "r6", "r7", "r8", "r9",
156 "r10", "r11", "r12", "r13", "r14",
157 "r15", "r16", "r17", "r18", "r19",
158 "r20", "r21", "r22", "r23", "r24",
159 "r25", "r26", "r27", "r28", "r29",
162 if (reg >= 0 && reg < 32)
168 mono_arch_fregname (int reg) {
169 static const char rnames[][4] = {
170 "f0", "f1", "f2", "f3", "f4",
171 "f5", "f6", "f7", "f8", "f9",
172 "f10", "f11", "f12", "f13", "f14",
173 "f15", "f16", "f17", "f18", "f19",
174 "f20", "f21", "f22", "f23", "f24",
175 "f25", "f26", "f27", "f28", "f29",
178 if (reg >= 0 && reg < 32)
183 /* this function overwrites r0, r11, r12 */
185 emit_memcpy (guint8 *code, int size, int dreg, int doffset, int sreg, int soffset)
187 /* unrolled, use the counter in big */
188 if (size > sizeof (gpointer) * 5) {
189 long shifted = size / SIZEOF_VOID_P;
190 guint8 *copy_loop_start, *copy_loop_jump;
192 ppc_load (code, ppc_r0, shifted);
193 ppc_mtctr (code, ppc_r0);
194 //g_assert (sreg == ppc_r12);
195 ppc_addi (code, ppc_r11, dreg, (doffset - sizeof (gpointer)));
196 ppc_addi (code, ppc_r12, sreg, (soffset - sizeof (gpointer)));
197 copy_loop_start = code;
198 ppc_ldptr_update (code, ppc_r0, (unsigned int)sizeof (gpointer), ppc_r12);
199 ppc_stptr_update (code, ppc_r0, (unsigned int)sizeof (gpointer), ppc_r11);
200 copy_loop_jump = code;
201 ppc_bc (code, PPC_BR_DEC_CTR_NONZERO, 0, 0);
202 ppc_patch (copy_loop_jump, copy_loop_start);
203 size -= shifted * sizeof (gpointer);
204 doffset = soffset = 0;
207 #ifdef __mono_ppc64__
208 /* the hardware has multiple load/store units and the move is long
209 enough to use more then one regiester, then use load/load/store/store
210 to execute 2 instructions per cycle. */
211 if ((cpu_hw_caps & PPC_MULTIPLE_LS_UNITS) && (dreg != ppc_r11) && (sreg != ppc_r11)) {
213 ppc_ldptr (code, ppc_r0, soffset, sreg);
214 ppc_ldptr (code, ppc_r11, soffset+8, sreg);
215 ppc_stptr (code, ppc_r0, doffset, dreg);
216 ppc_stptr (code, ppc_r11, doffset+8, dreg);
223 ppc_ldr (code, ppc_r0, soffset, sreg);
224 ppc_str (code, ppc_r0, doffset, dreg);
230 if ((cpu_hw_caps & PPC_MULTIPLE_LS_UNITS) && (dreg != ppc_r11) && (sreg != ppc_r11)) {
232 ppc_lwz (code, ppc_r0, soffset, sreg);
233 ppc_lwz (code, ppc_r11, soffset+4, sreg);
234 ppc_stw (code, ppc_r0, doffset, dreg);
235 ppc_stw (code, ppc_r11, doffset+4, dreg);
243 ppc_lwz (code, ppc_r0, soffset, sreg);
244 ppc_stw (code, ppc_r0, doffset, dreg);
250 ppc_lhz (code, ppc_r0, soffset, sreg);
251 ppc_sth (code, ppc_r0, doffset, dreg);
257 ppc_lbz (code, ppc_r0, soffset, sreg);
258 ppc_stb (code, ppc_r0, doffset, dreg);
267 * mono_arch_get_argument_info:
268 * @csig: a method signature
269 * @param_count: the number of parameters to consider
270 * @arg_info: an array to store the result infos
272 * Gathers information on parameters such as size, alignment and
273 * padding. arg_info should be large enought to hold param_count + 1 entries.
275 * Returns the size of the activation frame.
278 mono_arch_get_argument_info (MonoGenericSharingContext *gsctx, MonoMethodSignature *csig, int param_count, MonoJitArgumentInfo *arg_info)
280 #ifdef __mono_ppc64__
284 int k, frame_size = 0;
285 int size, align, pad;
288 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
289 frame_size += sizeof (gpointer);
293 arg_info [0].offset = offset;
296 frame_size += sizeof (gpointer);
300 arg_info [0].size = frame_size;
302 for (k = 0; k < param_count; k++) {
305 size = mono_type_native_stack_size (csig->params [k], (guint32*)&align);
307 size = mini_type_stack_size (NULL, csig->params [k], &align);
309 /* ignore alignment for now */
312 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
313 arg_info [k].pad = pad;
315 arg_info [k + 1].pad = 0;
316 arg_info [k + 1].size = size;
318 arg_info [k + 1].offset = offset;
322 align = MONO_ARCH_FRAME_ALIGNMENT;
323 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
324 arg_info [k].pad = pad;
330 #ifdef __mono_ppc64__
332 is_load_sequence (guint32 *seq)
334 return ppc_opcode (seq [0]) == 15 && /* lis */
335 ppc_opcode (seq [1]) == 24 && /* ori */
336 ppc_opcode (seq [2]) == 30 && /* sldi */
337 ppc_opcode (seq [3]) == 25 && /* oris */
338 ppc_opcode (seq [4]) == 24; /* ori */
341 #define ppc_load_get_dest(l) (((l)>>21) & 0x1f)
342 #define ppc_load_get_off(l) ((gint16)((l) & 0xffff))
346 #define ppc_is_load_op(opcode) (ppc_opcode ((opcode)) == 58 || ppc_opcode ((opcode)) == 32)
348 /* code must point to the blrl */
350 mono_ppc_is_direct_call_sequence (guint32 *code)
352 #ifdef __mono_ppc64__
353 g_assert(*code == 0x4e800021 || *code == 0x4e800020 || *code == 0x4e800420);
355 /* the thunk-less direct call sequence: lis/ori/sldi/oris/ori/mtlr/blrl */
356 if (ppc_opcode (code [-1]) == 31) { /* mtlr */
357 if (ppc_is_load_op (code [-2]) && ppc_is_load_op (code [-3])) { /* ld/ld */
358 if (!is_load_sequence (&code [-8]))
360 /* one of the loads must be "ld r2,8(rX)" or "ld r2,4(rX) for ilp32 */
361 return (ppc_load_get_dest (code [-2]) == ppc_r2 && ppc_load_get_off (code [-2]) == sizeof (gpointer)) ||
362 (ppc_load_get_dest (code [-3]) == ppc_r2 && ppc_load_get_off (code [-3]) == sizeof (gpointer));
364 if (ppc_opcode (code [-2]) == 24 && ppc_opcode (code [-3]) == 31) /* mr/nop */
365 return is_load_sequence (&code [-8]);
367 return is_load_sequence (&code [-6]);
371 g_assert(*code == 0x4e800021);
373 /* the thunk-less direct call sequence: lis/ori/mtlr/blrl */
374 return ppc_opcode (code [-1]) == 31 &&
375 ppc_opcode (code [-2]) == 24 &&
376 ppc_opcode (code [-3]) == 15;
380 #define MAX_ARCH_DELEGATE_PARAMS 7
383 get_delegate_invoke_impl (gboolean has_target, guint32 param_count, guint32 *code_len, gboolean aot)
385 guint8 *code, *start;
388 int size = MONO_PPC_32_64_CASE (32, 32) + PPC_FTNPTR_SIZE;
390 start = code = mono_global_codeman_reserve (size);
392 code = mono_ppc_create_pre_code_ftnptr (code);
394 /* Replace the this argument with the target */
395 ppc_ldptr (code, ppc_r0, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr), ppc_r3);
396 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
397 /* it's a function descriptor */
398 /* Can't use ldptr as it doesn't work with r0 */
399 ppc_ldptr_indexed (code, ppc_r0, 0, ppc_r0);
401 ppc_mtctr (code, ppc_r0);
402 ppc_ldptr (code, ppc_r3, MONO_STRUCT_OFFSET (MonoDelegate, target), ppc_r3);
403 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
405 g_assert ((code - start) <= size);
407 mono_arch_flush_icache (start, size);
411 size = MONO_PPC_32_64_CASE (32, 32) + param_count * 4 + PPC_FTNPTR_SIZE;
412 start = code = mono_global_codeman_reserve (size);
414 code = mono_ppc_create_pre_code_ftnptr (code);
416 ppc_ldptr (code, ppc_r0, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr), ppc_r3);
417 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
418 /* it's a function descriptor */
419 ppc_ldptr_indexed (code, ppc_r0, 0, ppc_r0);
421 ppc_mtctr (code, ppc_r0);
422 /* slide down the arguments */
423 for (i = 0; i < param_count; ++i) {
424 ppc_mr (code, (ppc_r3 + i), (ppc_r3 + i + 1));
426 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
428 g_assert ((code - start) <= size);
430 mono_arch_flush_icache (start, size);
434 *code_len = code - start;
440 mono_arch_get_delegate_invoke_impls (void)
448 code = get_delegate_invoke_impl (TRUE, 0, &code_len, TRUE);
449 res = g_slist_prepend (res, mono_tramp_info_create ("delegate_invoke_impl_has_target", code, code_len, NULL, NULL));
451 for (i = 0; i < MAX_ARCH_DELEGATE_PARAMS; ++i) {
452 code = get_delegate_invoke_impl (FALSE, i, &code_len, TRUE);
453 tramp_name = g_strdup_printf ("delegate_invoke_impl_target_%d", i);
454 res = g_slist_prepend (res, mono_tramp_info_create (tramp_name, code, code_len, NULL, NULL));
462 mono_arch_get_delegate_invoke_impl (MonoMethodSignature *sig, gboolean has_target)
464 guint8 *code, *start;
466 /* FIXME: Support more cases */
467 if (MONO_TYPE_ISSTRUCT (sig->ret))
471 static guint8* cached = NULL;
477 start = mono_aot_get_trampoline ("delegate_invoke_impl_has_target");
479 start = get_delegate_invoke_impl (TRUE, 0, NULL, FALSE);
481 mono_memory_barrier ();
485 static guint8* cache [MAX_ARCH_DELEGATE_PARAMS + 1] = {NULL};
488 if (sig->param_count > MAX_ARCH_DELEGATE_PARAMS)
490 for (i = 0; i < sig->param_count; ++i)
491 if (!mono_is_regsize_var (sig->params [i]))
495 code = cache [sig->param_count];
500 char *name = g_strdup_printf ("delegate_invoke_impl_target_%d", sig->param_count);
501 start = mono_aot_get_trampoline (name);
504 start = get_delegate_invoke_impl (FALSE, sig->param_count, NULL, FALSE);
507 mono_memory_barrier ();
509 cache [sig->param_count] = start;
515 mono_arch_get_delegate_virtual_invoke_impl (MonoMethodSignature *sig, MonoMethod *method, int offset, gboolean load_imt_reg)
521 mono_arch_get_this_arg_from_call (mgreg_t *regs, guint8 *code)
523 mgreg_t *r = (mgreg_t*)regs;
525 return (gpointer)(gsize)r [ppc_r3];
533 #define MAX_AUX_ENTRIES 128
535 * PPC_FEATURE_POWER4, PPC_FEATURE_POWER5, PPC_FEATURE_POWER5_PLUS, PPC_FEATURE_CELL,
536 * PPC_FEATURE_PA6T, PPC_FEATURE_ARCH_2_05 are considered supporting 2X ISA features
538 #define ISA_2X (0x00080000 | 0x00040000 | 0x00020000 | 0x00010000 | 0x00000800 | 0x00001000)
540 /* define PPC_FEATURE_64 HWCAP for 64-bit category. */
541 #define ISA_64 0x40000000
543 /* define PPC_FEATURE_POWER6_EXT HWCAP for power6x mffgpr/mftgpr instructions. */
544 #define ISA_MOVE_FPR_GPR 0x00000200
546 * Initialize the cpu to execute managed code.
549 mono_arch_cpu_init (void)
554 * Initialize architecture specific code.
557 mono_arch_init (void)
559 #if defined(MONO_CROSS_COMPILE)
560 #elif defined(__APPLE__)
562 size_t len = sizeof (cachelinesize);
565 mib [1] = HW_CACHELINE;
567 if (sysctl (mib, 2, &cachelinesize, &len, NULL, 0) == -1) {
571 cachelineinc = cachelinesize;
573 #elif defined(__linux__)
574 AuxVec vec [MAX_AUX_ENTRIES];
575 int i, vec_entries = 0;
576 /* sadly this will work only with 2.6 kernels... */
577 FILE* f = fopen ("/proc/self/auxv", "rb");
580 vec_entries = fread (&vec, sizeof (AuxVec), MAX_AUX_ENTRIES, f);
584 for (i = 0; i < vec_entries; i++) {
585 int type = vec [i].type;
587 if (type == 19) { /* AT_DCACHEBSIZE */
588 cachelinesize = vec [i].value;
592 #elif defined(G_COMPILER_CODEWARRIOR)
596 //#error Need a way to get cache line size
599 if (mono_hwcap_ppc_has_icache_snoop)
600 cpu_hw_caps |= PPC_ICACHE_SNOOP;
602 if (mono_hwcap_ppc_is_isa_2x)
603 cpu_hw_caps |= PPC_ISA_2X;
605 if (mono_hwcap_ppc_is_isa_64)
606 cpu_hw_caps |= PPC_ISA_64;
608 if (mono_hwcap_ppc_has_move_fpr_gpr)
609 cpu_hw_caps |= PPC_MOVE_FPR_GPR;
611 if (mono_hwcap_ppc_has_multiple_ls_units)
612 cpu_hw_caps |= PPC_MULTIPLE_LS_UNITS;
618 cachelineinc = cachelinesize;
620 if (mono_cpu_count () > 1)
621 cpu_hw_caps |= PPC_SMP_CAPABLE;
623 mono_mutex_init_recursive (&mini_arch_mutex);
625 ss_trigger_page = mono_valloc (NULL, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_32BIT);
626 bp_trigger_page = mono_valloc (NULL, mono_pagesize (), MONO_MMAP_READ|MONO_MMAP_32BIT);
627 mono_mprotect (bp_trigger_page, mono_pagesize (), 0);
629 mono_aot_register_jit_icall ("mono_ppc_throw_exception", mono_ppc_throw_exception);
633 * Cleanup architecture specific code.
636 mono_arch_cleanup (void)
638 mono_mutex_destroy (&mini_arch_mutex);
642 * This function returns the optimizations supported on this cpu.
645 mono_arch_cpu_optimizations (guint32 *exclude_mask)
649 /* no ppc-specific optimizations yet */
655 * This function test for all SIMD functions supported.
657 * Returns a bitmask corresponding to all supported versions.
661 mono_arch_cpu_enumerate_simd_versions (void)
663 /* SIMD is currently unimplemented */
667 #ifdef __mono_ppc64__
668 #define CASE_PPC32(c)
669 #define CASE_PPC64(c) case c:
671 #define CASE_PPC32(c) case c:
672 #define CASE_PPC64(c)
676 is_regsize_var (MonoType *t) {
679 t = mini_type_get_underlying_type (NULL, t);
683 CASE_PPC64 (MONO_TYPE_I8)
684 CASE_PPC64 (MONO_TYPE_U8)
688 case MONO_TYPE_FNPTR:
690 case MONO_TYPE_OBJECT:
691 case MONO_TYPE_STRING:
692 case MONO_TYPE_CLASS:
693 case MONO_TYPE_SZARRAY:
694 case MONO_TYPE_ARRAY:
696 case MONO_TYPE_GENERICINST:
697 if (!mono_type_generic_inst_is_valuetype (t))
700 case MONO_TYPE_VALUETYPE:
708 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
713 for (i = 0; i < cfg->num_varinfo; i++) {
714 MonoInst *ins = cfg->varinfo [i];
715 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
718 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
721 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) || (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
724 /* we can only allocate 32 bit values */
725 if (is_regsize_var (ins->inst_vtype)) {
726 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
727 g_assert (i == vmv->idx);
728 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
734 #endif /* ifndef DISABLE_JIT */
737 mono_arch_get_global_int_regs (MonoCompile *cfg)
741 if (cfg->frame_reg != ppc_sp)
743 /* ppc_r13 is used by the system on PPC EABI */
744 for (i = 14; i < top; ++i) {
746 * Reserve r29 for holding the vtable address for virtual calls in AOT mode,
747 * since the trampolines can clobber r12.
749 if (!(cfg->compile_aot && i == 29))
750 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
757 * mono_arch_regalloc_cost:
759 * Return the cost, in number of memory references, of the action of
760 * allocating the variable VMV into a register during global register
764 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
771 mono_arch_flush_icache (guint8 *code, gint size)
773 #ifdef MONO_CROSS_COMPILE
776 guint8 *endp, *start;
780 start = (guint8*)((gsize)start & ~(cachelinesize - 1));
781 /* use dcbf for smp support, later optimize for UP, see pem._64bit.d20030611.pdf page 211 */
782 #if defined(G_COMPILER_CODEWARRIOR)
783 if (cpu_hw_caps & PPC_SMP_CAPABLE) {
784 for (p = start; p < endp; p += cachelineinc) {
788 for (p = start; p < endp; p += cachelineinc) {
794 for (p = start; p < endp; p += cachelineinc) {
805 /* For POWER5/6 with ICACHE_SNOOPing only one icbi in the range is required.
806 * The sync is required to insure that the store queue is completely empty.
807 * While the icbi performs no cache operations, icbi/isync is required to
808 * kill local prefetch.
810 if (cpu_hw_caps & PPC_ICACHE_SNOOP) {
812 asm ("icbi 0,%0;" : : "r"(code) : "memory");
816 /* use dcbf for smp support, see pem._64bit.d20030611.pdf page 211 */
817 if (cpu_hw_caps & PPC_SMP_CAPABLE) {
818 for (p = start; p < endp; p += cachelineinc) {
819 asm ("dcbf 0,%0;" : : "r"(p) : "memory");
822 for (p = start; p < endp; p += cachelineinc) {
823 asm ("dcbst 0,%0;" : : "r"(p) : "memory");
828 for (p = start; p < endp; p += cachelineinc) {
829 /* for ISA2.0+ implementations we should not need any extra sync between the
830 * icbi instructions. Both the 2.0 PEM and the PowerISA-2.05 say this.
831 * So I am not sure which chip had this problem but its not an issue on
832 * of the ISA V2 chips.
834 if (cpu_hw_caps & PPC_ISA_2X)
835 asm ("icbi 0,%0;" : : "r"(p) : "memory");
837 asm ("icbi 0,%0; sync;" : : "r"(p) : "memory");
839 if (!(cpu_hw_caps & PPC_ISA_2X))
847 mono_arch_flush_register_windows (void)
852 #define ALWAYS_ON_STACK(s) s
853 #define FP_ALSO_IN_REG(s) s
855 #ifdef __mono_ppc64__
856 #define ALWAYS_ON_STACK(s) s
857 #define FP_ALSO_IN_REG(s) s
859 #define ALWAYS_ON_STACK(s)
860 #define FP_ALSO_IN_REG(s)
862 #define ALIGN_DOUBLES
875 guint32 vtsize; /* in param area */
877 guint8 vtregs; /* number of registers used to pass a RegTypeStructByVal */
878 guint8 regtype : 4; /* 0 general, 1 basereg, 2 floating point register, see RegType* */
879 guint8 size : 4; /* 1, 2, 4, 8, or regs used by RegTypeStructByVal */
880 guint8 bytes : 4; /* size in bytes - only valid for
881 RegTypeStructByVal if the struct fits
882 in one word, otherwise it's 0*/
891 gboolean vtype_retaddr;
899 add_general (guint *gr, guint *stack_size, ArgInfo *ainfo, gboolean simple)
901 #ifdef __mono_ppc64__
906 if (*gr >= 3 + PPC_NUM_REG_ARGS) {
907 ainfo->offset = PPC_STACK_PARAM_OFFSET + *stack_size;
908 ainfo->reg = ppc_sp; /* in the caller */
909 ainfo->regtype = RegTypeBase;
910 *stack_size += sizeof (gpointer);
912 ALWAYS_ON_STACK (*stack_size += sizeof (gpointer));
916 if (*gr >= 3 + PPC_NUM_REG_ARGS - 1) {
918 //*stack_size += (*stack_size % 8);
920 ainfo->offset = PPC_STACK_PARAM_OFFSET + *stack_size;
921 ainfo->reg = ppc_sp; /* in the caller */
922 ainfo->regtype = RegTypeBase;
929 ALWAYS_ON_STACK (*stack_size += 8);
937 #if defined(__APPLE__) || defined(__mono_ppc64__)
939 has_only_a_r48_field (MonoClass *klass)
943 gboolean have_field = FALSE;
945 while ((f = mono_class_get_fields (klass, &iter))) {
946 if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
949 if (!f->type->byref && (f->type->type == MONO_TYPE_R4 || f->type->type == MONO_TYPE_R8))
960 get_call_info (MonoGenericSharingContext *gsctx, MonoMethodSignature *sig)
962 guint i, fr, gr, pstart;
963 int n = sig->hasthis + sig->param_count;
964 MonoType *simpletype;
965 guint32 stack_size = 0;
966 CallInfo *cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * n);
967 gboolean is_pinvoke = sig->pinvoke;
969 fr = PPC_FIRST_FPARG_REG;
970 gr = PPC_FIRST_ARG_REG;
972 /* FIXME: handle returning a struct */
973 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
974 cinfo->vtype_retaddr = TRUE;
980 * To simplify get_this_arg_reg () and LLVM integration, emit the vret arg after
981 * the first argument, allowing 'this' to be always passed in the first arg reg.
982 * Also do this if the first argument is a reference type, since virtual calls
983 * are sometimes made using calli without sig->hasthis set, like in the delegate
986 if (cinfo->vtype_retaddr && !is_pinvoke && (sig->hasthis || (sig->param_count > 0 && MONO_TYPE_IS_REFERENCE (mini_type_get_underlying_type (gsctx, sig->params [0]))))) {
988 add_general (&gr, &stack_size, cinfo->args + 0, TRUE);
991 add_general (&gr, &stack_size, &cinfo->args [sig->hasthis + 0], TRUE);
995 add_general (&gr, &stack_size, &cinfo->ret, TRUE);
996 cinfo->struct_ret = cinfo->ret.reg;
997 cinfo->vret_arg_index = 1;
1001 add_general (&gr, &stack_size, cinfo->args + 0, TRUE);
1005 if (cinfo->vtype_retaddr) {
1006 add_general (&gr, &stack_size, &cinfo->ret, TRUE);
1007 cinfo->struct_ret = cinfo->ret.reg;
1011 DEBUG(printf("params: %d\n", sig->param_count));
1012 for (i = pstart; i < sig->param_count; ++i) {
1013 if (!sig->pinvoke && (sig->call_convention == MONO_CALL_VARARG) && (i == sig->sentinelpos)) {
1014 /* Prevent implicit arguments and sig_cookie from
1015 being passed in registers */
1016 gr = PPC_LAST_ARG_REG + 1;
1017 /* FIXME: don't we have to set fr, too? */
1018 /* Emit the signature cookie just before the implicit arguments */
1019 add_general (&gr, &stack_size, &cinfo->sig_cookie, TRUE);
1021 DEBUG(printf("param %d: ", i));
1022 if (sig->params [i]->byref) {
1023 DEBUG(printf("byref\n"));
1024 add_general (&gr, &stack_size, cinfo->args + n, TRUE);
1028 simpletype = mini_type_get_underlying_type (NULL, sig->params [i]);
1029 switch (simpletype->type) {
1030 case MONO_TYPE_BOOLEAN:
1033 cinfo->args [n].size = 1;
1034 add_general (&gr, &stack_size, cinfo->args + n, TRUE);
1037 case MONO_TYPE_CHAR:
1040 cinfo->args [n].size = 2;
1041 add_general (&gr, &stack_size, cinfo->args + n, TRUE);
1046 cinfo->args [n].size = 4;
1047 add_general (&gr, &stack_size, cinfo->args + n, TRUE);
1053 case MONO_TYPE_FNPTR:
1054 case MONO_TYPE_CLASS:
1055 case MONO_TYPE_OBJECT:
1056 case MONO_TYPE_STRING:
1057 case MONO_TYPE_SZARRAY:
1058 case MONO_TYPE_ARRAY:
1059 cinfo->args [n].size = sizeof (gpointer);
1060 add_general (&gr, &stack_size, cinfo->args + n, TRUE);
1063 case MONO_TYPE_GENERICINST:
1064 if (!mono_type_generic_inst_is_valuetype (simpletype)) {
1065 cinfo->args [n].size = sizeof (gpointer);
1066 add_general (&gr, &stack_size, cinfo->args + n, TRUE);
1071 case MONO_TYPE_VALUETYPE:
1072 case MONO_TYPE_TYPEDBYREF: {
1076 klass = mono_class_from_mono_type (sig->params [i]);
1077 if (simpletype->type == MONO_TYPE_TYPEDBYREF)
1078 size = sizeof (MonoTypedRef);
1079 else if (is_pinvoke)
1080 size = mono_class_native_size (klass, NULL);
1082 size = mono_class_value_size (klass, NULL);
1084 #if defined(__APPLE__) || defined(__mono_ppc64__)
1085 if ((size == 4 || size == 8) && has_only_a_r48_field (klass)) {
1086 cinfo->args [n].size = size;
1088 /* It was 7, now it is 8 in LinuxPPC */
1089 if (fr <= PPC_LAST_FPARG_REG) {
1090 cinfo->args [n].regtype = RegTypeFP;
1091 cinfo->args [n].reg = fr;
1093 FP_ALSO_IN_REG (gr ++);
1095 FP_ALSO_IN_REG (gr ++);
1096 ALWAYS_ON_STACK (stack_size += size);
1098 cinfo->args [n].offset = PPC_STACK_PARAM_OFFSET + stack_size;
1099 cinfo->args [n].regtype = RegTypeBase;
1100 cinfo->args [n].reg = ppc_sp; /* in the caller*/
1107 DEBUG(printf ("load %d bytes struct\n",
1108 mono_class_native_size (sig->params [i]->data.klass, NULL)));
1110 #if PPC_PASS_STRUCTS_BY_VALUE
1112 int align_size = size;
1114 int rest = PPC_LAST_ARG_REG - gr + 1;
1117 align_size += (sizeof (gpointer) - 1);
1118 align_size &= ~(sizeof (gpointer) - 1);
1119 nregs = (align_size + sizeof (gpointer) -1 ) / sizeof (gpointer);
1120 n_in_regs = MIN (rest, nregs);
1124 /* FIXME: check this */
1125 if (size >= 3 && size % 4 != 0)
1128 cinfo->args [n].regtype = RegTypeStructByVal;
1129 cinfo->args [n].vtregs = n_in_regs;
1130 cinfo->args [n].size = n_in_regs;
1131 cinfo->args [n].vtsize = nregs - n_in_regs;
1132 cinfo->args [n].reg = gr;
1134 #ifdef __mono_ppc64__
1135 if (nregs == 1 && is_pinvoke)
1136 cinfo->args [n].bytes = size;
1139 cinfo->args [n].bytes = 0;
1141 cinfo->args [n].offset = PPC_STACK_PARAM_OFFSET + stack_size;
1142 /*g_print ("offset for arg %d at %d\n", n, PPC_STACK_PARAM_OFFSET + stack_size);*/
1143 stack_size += nregs * sizeof (gpointer);
1146 add_general (&gr, &stack_size, cinfo->args + n, TRUE);
1147 cinfo->args [n].regtype = RegTypeStructByAddr;
1148 cinfo->args [n].vtsize = size;
1155 cinfo->args [n].size = 8;
1156 add_general (&gr, &stack_size, cinfo->args + n, SIZEOF_REGISTER == 8);
1160 cinfo->args [n].size = 4;
1162 /* It was 7, now it is 8 in LinuxPPC */
1163 if (fr <= PPC_LAST_FPARG_REG) {
1164 cinfo->args [n].regtype = RegTypeFP;
1165 cinfo->args [n].reg = fr;
1167 FP_ALSO_IN_REG (gr ++);
1168 ALWAYS_ON_STACK (stack_size += SIZEOF_REGISTER);
1170 cinfo->args [n].offset = PPC_STACK_PARAM_OFFSET + stack_size + MONO_PPC_32_64_CASE (0, 4);
1171 cinfo->args [n].regtype = RegTypeBase;
1172 cinfo->args [n].reg = ppc_sp; /* in the caller*/
1173 stack_size += SIZEOF_REGISTER;
1178 cinfo->args [n].size = 8;
1179 /* It was 7, now it is 8 in LinuxPPC */
1180 if (fr <= PPC_LAST_FPARG_REG) {
1181 cinfo->args [n].regtype = RegTypeFP;
1182 cinfo->args [n].reg = fr;
1184 FP_ALSO_IN_REG (gr += sizeof (double) / SIZEOF_REGISTER);
1185 ALWAYS_ON_STACK (stack_size += 8);
1187 cinfo->args [n].offset = PPC_STACK_PARAM_OFFSET + stack_size;
1188 cinfo->args [n].regtype = RegTypeBase;
1189 cinfo->args [n].reg = ppc_sp; /* in the caller*/
1195 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1200 if (!sig->pinvoke && (sig->call_convention == MONO_CALL_VARARG) && (i == sig->sentinelpos)) {
1201 /* Prevent implicit arguments and sig_cookie from
1202 being passed in registers */
1203 gr = PPC_LAST_ARG_REG + 1;
1204 /* Emit the signature cookie just before the implicit arguments */
1205 add_general (&gr, &stack_size, &cinfo->sig_cookie, TRUE);
1209 simpletype = mini_type_get_underlying_type (NULL, sig->ret);
1210 switch (simpletype->type) {
1211 case MONO_TYPE_BOOLEAN:
1216 case MONO_TYPE_CHAR:
1222 case MONO_TYPE_FNPTR:
1223 case MONO_TYPE_CLASS:
1224 case MONO_TYPE_OBJECT:
1225 case MONO_TYPE_SZARRAY:
1226 case MONO_TYPE_ARRAY:
1227 case MONO_TYPE_STRING:
1228 cinfo->ret.reg = ppc_r3;
1232 cinfo->ret.reg = ppc_r3;
1236 cinfo->ret.reg = ppc_f1;
1237 cinfo->ret.regtype = RegTypeFP;
1239 case MONO_TYPE_GENERICINST:
1240 if (!mono_type_generic_inst_is_valuetype (simpletype)) {
1241 cinfo->ret.reg = ppc_r3;
1245 case MONO_TYPE_VALUETYPE:
1247 case MONO_TYPE_TYPEDBYREF:
1248 case MONO_TYPE_VOID:
1251 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1255 /* align stack size to 16 */
1256 DEBUG (printf (" stack size: %d (%d)\n", (stack_size + 15) & ~15, stack_size));
1257 stack_size = (stack_size + 15) & ~15;
1259 cinfo->stack_usage = stack_size;
1264 mono_arch_tail_call_supported (MonoCompile *cfg, MonoMethodSignature *caller_sig, MonoMethodSignature *callee_sig)
1270 c1 = get_call_info (NULL, caller_sig);
1271 c2 = get_call_info (NULL, callee_sig);
1272 res = c1->stack_usage >= c2->stack_usage;
1273 if (callee_sig->ret && MONO_TYPE_ISSTRUCT (callee_sig->ret))
1274 /* An address on the callee's stack is passed as the first argument */
1276 for (i = 0; i < c2->nargs; ++i) {
1277 if (c2->args [i].regtype == RegTypeStructByAddr)
1278 /* An address on the callee's stack is passed as the argument */
1283 if (!mono_debug_count ())
1294 * Set var information according to the calling convention. ppc version.
1295 * The locals var stuff should most likely be split in another method.
1298 mono_arch_allocate_vars (MonoCompile *m)
1300 MonoMethodSignature *sig;
1301 MonoMethodHeader *header;
1303 int i, offset, size, align, curinst;
1304 int frame_reg = ppc_sp;
1306 guint32 locals_stack_size, locals_stack_align;
1308 m->flags |= MONO_CFG_HAS_SPILLUP;
1310 /* allow room for the vararg method args: void* and long/double */
1311 if (mono_jit_trace_calls != NULL && mono_trace_eval (m->method))
1312 m->param_area = MAX (m->param_area, sizeof (gpointer)*8);
1313 /* this is bug #60332: remove when #59509 is fixed, so no weird vararg
1314 * call convs needs to be handled this way.
1316 if (m->flags & MONO_CFG_HAS_VARARGS)
1317 m->param_area = MAX (m->param_area, sizeof (gpointer)*8);
1318 /* gtk-sharp and other broken code will dllimport vararg functions even with
1319 * non-varargs signatures. Since there is little hope people will get this right
1320 * we assume they won't.
1322 if (m->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
1323 m->param_area = MAX (m->param_area, sizeof (gpointer)*8);
1328 * We use the frame register also for any method that has
1329 * exception clauses. This way, when the handlers are called,
1330 * the code will reference local variables using the frame reg instead of
1331 * the stack pointer: if we had to restore the stack pointer, we'd
1332 * corrupt the method frames that are already on the stack (since
1333 * filters get called before stack unwinding happens) when the filter
1334 * code would call any method (this also applies to finally etc.).
1336 if ((m->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1337 frame_reg = ppc_r31;
1338 m->frame_reg = frame_reg;
1339 if (frame_reg != ppc_sp) {
1340 m->used_int_regs |= 1 << frame_reg;
1343 sig = mono_method_signature (m->method);
1347 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
1348 m->ret->opcode = OP_REGVAR;
1349 m->ret->inst_c0 = m->ret->dreg = ppc_r3;
1351 /* FIXME: handle long values? */
1352 switch (mini_type_get_underlying_type (m->generic_sharing_context, sig->ret)->type) {
1353 case MONO_TYPE_VOID:
1357 m->ret->opcode = OP_REGVAR;
1358 m->ret->inst_c0 = m->ret->dreg = ppc_f1;
1361 m->ret->opcode = OP_REGVAR;
1362 m->ret->inst_c0 = m->ret->dreg = ppc_r3;
1366 /* local vars are at a positive offset from the stack pointer */
1368 * also note that if the function uses alloca, we use ppc_r31
1369 * to point at the local variables.
1371 offset = PPC_MINIMAL_STACK_SIZE; /* linkage area */
1372 /* align the offset to 16 bytes: not sure this is needed here */
1374 //offset &= ~(16 - 1);
1376 /* add parameter area size for called functions */
1377 offset += m->param_area;
1379 offset &= ~(16 - 1);
1381 /* allow room to save the return value */
1382 if (mono_jit_trace_calls != NULL && mono_trace_eval (m->method))
1385 /* the MonoLMF structure is stored just below the stack pointer */
1388 /* this stuff should not be needed on ppc and the new jit,
1389 * because a call on ppc to the handlers doesn't change the
1390 * stack pointer and the jist doesn't manipulate the stack pointer
1391 * for operations involving valuetypes.
1393 /* reserve space to store the esp */
1394 offset += sizeof (gpointer);
1396 /* this is a global constant */
1397 mono_exc_esp_offset = offset;
1400 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
1401 offset += sizeof(gpointer) - 1;
1402 offset &= ~(sizeof(gpointer) - 1);
1404 m->vret_addr->opcode = OP_REGOFFSET;
1405 m->vret_addr->inst_basereg = frame_reg;
1406 m->vret_addr->inst_offset = offset;
1408 if (G_UNLIKELY (m->verbose_level > 1)) {
1409 printf ("vret_addr =");
1410 mono_print_ins (m->vret_addr);
1413 offset += sizeof(gpointer);
1416 offsets = mono_allocate_stack_slots (m, FALSE, &locals_stack_size, &locals_stack_align);
1417 if (locals_stack_align) {
1418 offset += (locals_stack_align - 1);
1419 offset &= ~(locals_stack_align - 1);
1421 for (i = m->locals_start; i < m->num_varinfo; i++) {
1422 if (offsets [i] != -1) {
1423 MonoInst *inst = m->varinfo [i];
1424 inst->opcode = OP_REGOFFSET;
1425 inst->inst_basereg = frame_reg;
1426 inst->inst_offset = offset + offsets [i];
1428 g_print ("allocating local %d (%s) to %d\n",
1429 i, mono_type_get_name (inst->inst_vtype), inst->inst_offset);
1433 offset += locals_stack_size;
1437 inst = m->args [curinst];
1438 if (inst->opcode != OP_REGVAR) {
1439 inst->opcode = OP_REGOFFSET;
1440 inst->inst_basereg = frame_reg;
1441 offset += sizeof (gpointer) - 1;
1442 offset &= ~(sizeof (gpointer) - 1);
1443 inst->inst_offset = offset;
1444 offset += sizeof (gpointer);
1449 for (i = 0; i < sig->param_count; ++i) {
1450 inst = m->args [curinst];
1451 if (inst->opcode != OP_REGVAR) {
1452 inst->opcode = OP_REGOFFSET;
1453 inst->inst_basereg = frame_reg;
1455 size = mono_type_native_stack_size (sig->params [i], (guint32*)&align);
1456 inst->backend.is_pinvoke = 1;
1458 size = mono_type_size (sig->params [i], &align);
1460 if (MONO_TYPE_ISSTRUCT (sig->params [i]) && size < sizeof (gpointer))
1461 size = align = sizeof (gpointer);
1463 * Use at least 4/8 byte alignment, since these might be passed in registers, and
1464 * they are saved using std in the prolog.
1466 align = sizeof (gpointer);
1467 offset += align - 1;
1468 offset &= ~(align - 1);
1469 inst->inst_offset = offset;
1475 /* some storage for fp conversions */
1478 m->arch.fp_conv_var_offset = offset;
1481 /* align the offset to 16 bytes */
1483 offset &= ~(16 - 1);
1486 m->stack_offset = offset;
1488 if (sig->call_convention == MONO_CALL_VARARG) {
1489 CallInfo *cinfo = get_call_info (m->generic_sharing_context, m->method->signature);
1491 m->sig_cookie = cinfo->sig_cookie.offset;
1498 mono_arch_create_vars (MonoCompile *cfg)
1500 MonoMethodSignature *sig = mono_method_signature (cfg->method);
1502 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
1503 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
1507 /* Fixme: we need an alignment solution for enter_method and mono_arch_call_opcode,
1508 * currently alignment in mono_arch_call_opcode is computed without arch_get_argument_info
1512 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
1514 int sig_reg = mono_alloc_ireg (cfg);
1516 /* FIXME: Add support for signature tokens to AOT */
1517 cfg->disable_aot = TRUE;
1519 MONO_EMIT_NEW_ICONST (cfg, sig_reg, (gulong)call->signature);
1520 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG,
1521 ppc_r1, cinfo->sig_cookie.offset, sig_reg);
1525 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
1528 MonoMethodSignature *sig;
1532 sig = call->signature;
1533 n = sig->param_count + sig->hasthis;
1535 cinfo = get_call_info (cfg->generic_sharing_context, sig);
1537 for (i = 0; i < n; ++i) {
1538 ArgInfo *ainfo = cinfo->args + i;
1541 if (i >= sig->hasthis)
1542 t = sig->params [i - sig->hasthis];
1544 t = &mono_defaults.int_class->byval_arg;
1545 t = mini_type_get_underlying_type (cfg->generic_sharing_context, t);
1547 if (!sig->pinvoke && (sig->call_convention == MONO_CALL_VARARG) && (i == sig->sentinelpos))
1548 emit_sig_cookie (cfg, call, cinfo);
1550 in = call->args [i];
1552 if (ainfo->regtype == RegTypeGeneral) {
1553 #ifndef __mono_ppc64__
1554 if (!t->byref && ((t->type == MONO_TYPE_I8) || (t->type == MONO_TYPE_U8))) {
1555 MONO_INST_NEW (cfg, ins, OP_MOVE);
1556 ins->dreg = mono_alloc_ireg (cfg);
1557 ins->sreg1 = in->dreg + 1;
1558 MONO_ADD_INS (cfg->cbb, ins);
1559 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg + 1, FALSE);
1561 MONO_INST_NEW (cfg, ins, OP_MOVE);
1562 ins->dreg = mono_alloc_ireg (cfg);
1563 ins->sreg1 = in->dreg + 2;
1564 MONO_ADD_INS (cfg->cbb, ins);
1565 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg, FALSE);
1569 MONO_INST_NEW (cfg, ins, OP_MOVE);
1570 ins->dreg = mono_alloc_ireg (cfg);
1571 ins->sreg1 = in->dreg;
1572 MONO_ADD_INS (cfg->cbb, ins);
1574 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg, FALSE);
1576 } else if (ainfo->regtype == RegTypeStructByAddr) {
1577 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
1578 ins->opcode = OP_OUTARG_VT;
1579 ins->sreg1 = in->dreg;
1580 ins->klass = in->klass;
1581 ins->inst_p0 = call;
1582 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
1583 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
1584 MONO_ADD_INS (cfg->cbb, ins);
1585 } else if (ainfo->regtype == RegTypeStructByVal) {
1586 /* this is further handled in mono_arch_emit_outarg_vt () */
1587 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
1588 ins->opcode = OP_OUTARG_VT;
1589 ins->sreg1 = in->dreg;
1590 ins->klass = in->klass;
1591 ins->inst_p0 = call;
1592 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
1593 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
1594 MONO_ADD_INS (cfg->cbb, ins);
1595 } else if (ainfo->regtype == RegTypeBase) {
1596 if (!t->byref && ((t->type == MONO_TYPE_I8) || (t->type == MONO_TYPE_U8))) {
1597 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI8_MEMBASE_REG, ppc_r1, ainfo->offset, in->dreg);
1598 } else if (!t->byref && ((t->type == MONO_TYPE_R4) || (t->type == MONO_TYPE_R8))) {
1599 if (t->type == MONO_TYPE_R8)
1600 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG, ppc_r1, ainfo->offset, in->dreg);
1602 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG, ppc_r1, ainfo->offset, in->dreg);
1604 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, ppc_r1, ainfo->offset, in->dreg);
1606 } else if (ainfo->regtype == RegTypeFP) {
1607 if (t->type == MONO_TYPE_VALUETYPE) {
1608 /* this is further handled in mono_arch_emit_outarg_vt () */
1609 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
1610 ins->opcode = OP_OUTARG_VT;
1611 ins->sreg1 = in->dreg;
1612 ins->klass = in->klass;
1613 ins->inst_p0 = call;
1614 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
1615 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
1616 MONO_ADD_INS (cfg->cbb, ins);
1618 cfg->flags |= MONO_CFG_HAS_FPOUT;
1620 int dreg = mono_alloc_freg (cfg);
1622 if (ainfo->size == 4) {
1623 MONO_EMIT_NEW_UNALU (cfg, OP_FCONV_TO_R4, dreg, in->dreg);
1625 MONO_INST_NEW (cfg, ins, OP_FMOVE);
1627 ins->sreg1 = in->dreg;
1628 MONO_ADD_INS (cfg->cbb, ins);
1631 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
1632 cfg->flags |= MONO_CFG_HAS_FPOUT;
1635 g_assert_not_reached ();
1639 /* Emit the signature cookie in the case that there is no
1640 additional argument */
1641 if (!sig->pinvoke && (sig->call_convention == MONO_CALL_VARARG) && (n == sig->sentinelpos))
1642 emit_sig_cookie (cfg, call, cinfo);
1644 if (cinfo->struct_ret) {
1647 MONO_INST_NEW (cfg, vtarg, OP_MOVE);
1648 vtarg->sreg1 = call->vret_var->dreg;
1649 vtarg->dreg = mono_alloc_preg (cfg);
1650 MONO_ADD_INS (cfg->cbb, vtarg);
1652 mono_call_inst_add_outarg_reg (cfg, call, vtarg->dreg, cinfo->struct_ret, FALSE);
1655 call->stack_usage = cinfo->stack_usage;
1656 cfg->param_area = MAX (PPC_MINIMAL_PARAM_AREA_SIZE, MAX (cfg->param_area, cinfo->stack_usage));
1657 cfg->flags |= MONO_CFG_HAS_CALLS;
1665 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
1667 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
1668 ArgInfo *ainfo = ins->inst_p1;
1669 int ovf_size = ainfo->vtsize;
1670 int doffset = ainfo->offset;
1671 int i, soffset, dreg;
1673 if (ainfo->regtype == RegTypeStructByVal) {
1680 * Darwin pinvokes needs some special handling for 1
1681 * and 2 byte arguments
1683 g_assert (ins->klass);
1684 if (call->signature->pinvoke)
1685 size = mono_class_native_size (ins->klass, NULL);
1686 if (size == 2 || size == 1) {
1687 int tmpr = mono_alloc_ireg (cfg);
1689 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI1_MEMBASE, tmpr, src->dreg, soffset);
1691 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI2_MEMBASE, tmpr, src->dreg, soffset);
1692 dreg = mono_alloc_ireg (cfg);
1693 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, dreg, tmpr);
1694 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, FALSE);
1697 for (i = 0; i < ainfo->vtregs; ++i) {
1698 int antipadding = 0;
1701 antipadding = sizeof (gpointer) - ainfo->bytes;
1703 dreg = mono_alloc_ireg (cfg);
1704 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, dreg, src->dreg, soffset);
1706 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHR_UN_IMM, dreg, dreg, antipadding * 8);
1707 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg + i, FALSE);
1708 soffset += sizeof (gpointer);
1711 mini_emit_memcpy (cfg, ppc_r1, doffset + soffset, src->dreg, soffset, ovf_size * sizeof (gpointer), 0);
1712 } else if (ainfo->regtype == RegTypeFP) {
1713 int tmpr = mono_alloc_freg (cfg);
1714 if (ainfo->size == 4)
1715 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, tmpr, src->dreg, 0);
1717 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, tmpr, src->dreg, 0);
1718 dreg = mono_alloc_freg (cfg);
1719 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, dreg, tmpr);
1720 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
1722 MonoInst *vtcopy = mono_compile_create_var (cfg, &src->klass->byval_arg, OP_LOCAL);
1726 /* FIXME: alignment? */
1727 if (call->signature->pinvoke) {
1728 size = mono_type_native_stack_size (&src->klass->byval_arg, NULL);
1729 vtcopy->backend.is_pinvoke = 1;
1731 size = mini_type_stack_size (cfg->generic_sharing_context, &src->klass->byval_arg, NULL);
1734 g_assert (ovf_size > 0);
1736 EMIT_NEW_VARLOADA (cfg, load, vtcopy, vtcopy->inst_vtype);
1737 mini_emit_memcpy (cfg, load->dreg, 0, src->dreg, 0, size, 0);
1740 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, ppc_r1, ainfo->offset, load->dreg);
1742 mono_call_inst_add_outarg_reg (cfg, call, load->dreg, ainfo->reg, FALSE);
1747 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
1749 MonoType *ret = mini_type_get_underlying_type (cfg->generic_sharing_context,
1750 mono_method_signature (method)->ret);
1753 #ifndef __mono_ppc64__
1754 if (ret->type == MONO_TYPE_I8 || ret->type == MONO_TYPE_U8) {
1757 MONO_INST_NEW (cfg, ins, OP_SETLRET);
1758 ins->sreg1 = val->dreg + 1;
1759 ins->sreg2 = val->dreg + 2;
1760 MONO_ADD_INS (cfg->cbb, ins);
1764 if (ret->type == MONO_TYPE_R8 || ret->type == MONO_TYPE_R4) {
1765 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, cfg->ret->dreg, val->dreg);
1769 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
1772 /* FIXME: this is just a useless hint: fix the interface to include the opcode */
1774 mono_arch_is_inst_imm (gint64 imm)
1779 #endif /* DISABLE_JIT */
1782 * Allow tracing to work with this interface (with an optional argument)
1786 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
1790 ppc_load_ptr (code, ppc_r3, cfg->method);
1791 ppc_li (code, ppc_r4, 0); /* NULL ebp for now */
1792 ppc_load_func (code, ppc_r0, func);
1793 ppc_mtlr (code, ppc_r0);
1807 mono_arch_instrument_epilog_full (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers)
1810 int save_mode = SAVE_NONE;
1812 MonoMethod *method = cfg->method;
1813 int rtype = mini_type_get_underlying_type (cfg->generic_sharing_context,
1814 mono_method_signature (method)->ret)->type;
1815 int save_offset = PPC_STACK_PARAM_OFFSET + cfg->param_area;
1819 offset = code - cfg->native_code;
1820 /* we need about 16 instructions */
1821 if (offset > (cfg->code_size - 16 * 4)) {
1822 cfg->code_size *= 2;
1823 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
1824 code = cfg->native_code + offset;
1828 case MONO_TYPE_VOID:
1829 /* special case string .ctor icall */
1830 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
1831 save_mode = SAVE_ONE;
1833 save_mode = SAVE_NONE;
1835 #ifndef __mono_ppc64__
1838 save_mode = SAVE_TWO;
1843 save_mode = SAVE_FP;
1845 case MONO_TYPE_VALUETYPE:
1846 save_mode = SAVE_STRUCT;
1849 save_mode = SAVE_ONE;
1853 switch (save_mode) {
1855 ppc_stw (code, ppc_r3, save_offset, cfg->frame_reg);
1856 ppc_stw (code, ppc_r4, save_offset + 4, cfg->frame_reg);
1857 if (enable_arguments) {
1858 ppc_mr (code, ppc_r5, ppc_r4);
1859 ppc_mr (code, ppc_r4, ppc_r3);
1863 ppc_stptr (code, ppc_r3, save_offset, cfg->frame_reg);
1864 if (enable_arguments) {
1865 ppc_mr (code, ppc_r4, ppc_r3);
1869 ppc_stfd (code, ppc_f1, save_offset, cfg->frame_reg);
1870 if (enable_arguments) {
1871 /* FIXME: what reg? */
1872 ppc_fmr (code, ppc_f3, ppc_f1);
1873 /* FIXME: use 8 byte load on PPC64 */
1874 ppc_lwz (code, ppc_r4, save_offset, cfg->frame_reg);
1875 ppc_lwz (code, ppc_r5, save_offset + 4, cfg->frame_reg);
1879 if (enable_arguments) {
1880 /* FIXME: get the actual address */
1881 ppc_mr (code, ppc_r4, ppc_r3);
1889 ppc_load_ptr (code, ppc_r3, cfg->method);
1890 ppc_load_func (code, ppc_r0, func);
1891 ppc_mtlr (code, ppc_r0);
1894 switch (save_mode) {
1896 ppc_lwz (code, ppc_r3, save_offset, cfg->frame_reg);
1897 ppc_lwz (code, ppc_r4, save_offset + 4, cfg->frame_reg);
1900 ppc_ldptr (code, ppc_r3, save_offset, cfg->frame_reg);
1903 ppc_lfd (code, ppc_f1, save_offset, cfg->frame_reg);
1913 * Conditional branches have a small offset, so if it is likely overflowed,
1914 * we do a branch to the end of the method (uncond branches have much larger
1915 * offsets) where we perform the conditional and jump back unconditionally.
1916 * It's slightly slower, since we add two uncond branches, but it's very simple
1917 * with the current patch implementation and such large methods are likely not
1918 * going to be perf critical anyway.
1923 const char *exception;
1930 #define EMIT_COND_BRANCH_FLAGS(ins,b0,b1) \
1931 if (0 && ins->inst_true_bb->native_offset) { \
1932 ppc_bc (code, (b0), (b1), (code - cfg->native_code + ins->inst_true_bb->native_offset) & 0xffff); \
1934 int br_disp = ins->inst_true_bb->max_offset - offset; \
1935 if (!ppc_is_imm16 (br_disp + 1024) || ! ppc_is_imm16 (ppc_is_imm16 (br_disp - 1024))) { \
1936 MonoOvfJump *ovfj = mono_mempool_alloc (cfg->mempool, sizeof (MonoOvfJump)); \
1937 ovfj->data.bb = ins->inst_true_bb; \
1938 ovfj->ip_offset = 0; \
1939 ovfj->b0_cond = (b0); \
1940 ovfj->b1_cond = (b1); \
1941 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_BB_OVF, ovfj); \
1944 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_BB, ins->inst_true_bb); \
1945 ppc_bc (code, (b0), (b1), 0); \
1949 #define EMIT_COND_BRANCH(ins,cond) EMIT_COND_BRANCH_FLAGS(ins, branch_b0_table [(cond)], branch_b1_table [(cond)])
1951 /* emit an exception if condition is fail
1953 * We assign the extra code used to throw the implicit exceptions
1954 * to cfg->bb_exit as far as the big branch handling is concerned
1956 #define EMIT_COND_SYSTEM_EXCEPTION_FLAGS(b0,b1,exc_name) \
1958 int br_disp = cfg->bb_exit->max_offset - offset; \
1959 if (!ppc_is_imm16 (br_disp + 1024) || ! ppc_is_imm16 (ppc_is_imm16 (br_disp - 1024))) { \
1960 MonoOvfJump *ovfj = mono_mempool_alloc (cfg->mempool, sizeof (MonoOvfJump)); \
1961 ovfj->data.exception = (exc_name); \
1962 ovfj->ip_offset = code - cfg->native_code; \
1963 ovfj->b0_cond = (b0); \
1964 ovfj->b1_cond = (b1); \
1965 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_EXC_OVF, ovfj); \
1967 cfg->bb_exit->max_offset += 24; \
1969 mono_add_patch_info (cfg, code - cfg->native_code, \
1970 MONO_PATCH_INFO_EXC, exc_name); \
1971 ppc_bcl (code, (b0), (b1), 0); \
1975 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) EMIT_COND_SYSTEM_EXCEPTION_FLAGS(branch_b0_table [(cond)], branch_b1_table [(cond)], (exc_name))
1978 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
1983 normalize_opcode (int opcode)
1986 #ifndef __mono_ilp32__
1987 case MONO_PPC_32_64_CASE (OP_LOADI4_MEMBASE, OP_LOADI8_MEMBASE):
1988 return OP_LOAD_MEMBASE;
1989 case MONO_PPC_32_64_CASE (OP_LOADI4_MEMINDEX, OP_LOADI8_MEMINDEX):
1990 return OP_LOAD_MEMINDEX;
1991 case MONO_PPC_32_64_CASE (OP_STOREI4_MEMBASE_REG, OP_STOREI8_MEMBASE_REG):
1992 return OP_STORE_MEMBASE_REG;
1993 case MONO_PPC_32_64_CASE (OP_STOREI4_MEMBASE_IMM, OP_STOREI8_MEMBASE_IMM):
1994 return OP_STORE_MEMBASE_IMM;
1995 case MONO_PPC_32_64_CASE (OP_STOREI4_MEMINDEX, OP_STOREI8_MEMINDEX):
1996 return OP_STORE_MEMINDEX;
1998 case MONO_PPC_32_64_CASE (OP_ISHR_IMM, OP_LSHR_IMM):
2000 case MONO_PPC_32_64_CASE (OP_ISHR_UN_IMM, OP_LSHR_UN_IMM):
2001 return OP_SHR_UN_IMM;
2008 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2010 MonoInst *ins, *n, *last_ins = NULL;
2012 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2013 switch (normalize_opcode (ins->opcode)) {
2015 /* remove unnecessary multiplication with 1 */
2016 if (ins->inst_imm == 1) {
2017 if (ins->dreg != ins->sreg1) {
2018 ins->opcode = OP_MOVE;
2020 MONO_DELETE_INS (bb, ins);
2024 int power2 = mono_is_power_of_two (ins->inst_imm);
2026 ins->opcode = OP_SHL_IMM;
2027 ins->inst_imm = power2;
2031 case OP_LOAD_MEMBASE:
2033 * OP_STORE_MEMBASE_REG reg, offset(basereg)
2034 * OP_LOAD_MEMBASE offset(basereg), reg
2036 if (last_ins && normalize_opcode (last_ins->opcode) == OP_STORE_MEMBASE_REG &&
2037 ins->inst_basereg == last_ins->inst_destbasereg &&
2038 ins->inst_offset == last_ins->inst_offset) {
2039 if (ins->dreg == last_ins->sreg1) {
2040 MONO_DELETE_INS (bb, ins);
2043 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
2044 ins->opcode = OP_MOVE;
2045 ins->sreg1 = last_ins->sreg1;
2049 * Note: reg1 must be different from the basereg in the second load
2050 * OP_LOAD_MEMBASE offset(basereg), reg1
2051 * OP_LOAD_MEMBASE offset(basereg), reg2
2053 * OP_LOAD_MEMBASE offset(basereg), reg1
2054 * OP_MOVE reg1, reg2
2056 } else if (last_ins && normalize_opcode (last_ins->opcode) == OP_LOAD_MEMBASE &&
2057 ins->inst_basereg != last_ins->dreg &&
2058 ins->inst_basereg == last_ins->inst_basereg &&
2059 ins->inst_offset == last_ins->inst_offset) {
2061 if (ins->dreg == last_ins->dreg) {
2062 MONO_DELETE_INS (bb, ins);
2065 ins->opcode = OP_MOVE;
2066 ins->sreg1 = last_ins->dreg;
2069 //g_assert_not_reached ();
2073 * OP_STORE_MEMBASE_IMM imm, offset(basereg)
2074 * OP_LOAD_MEMBASE offset(basereg), reg
2076 * OP_STORE_MEMBASE_IMM imm, offset(basereg)
2077 * OP_ICONST reg, imm
2079 } else if (last_ins && normalize_opcode (last_ins->opcode) == OP_STORE_MEMBASE_IMM &&
2080 ins->inst_basereg == last_ins->inst_destbasereg &&
2081 ins->inst_offset == last_ins->inst_offset) {
2082 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
2083 ins->opcode = OP_ICONST;
2084 ins->inst_c0 = last_ins->inst_imm;
2085 g_assert_not_reached (); // check this rule
2089 case OP_LOADU1_MEMBASE:
2090 case OP_LOADI1_MEMBASE:
2091 if (last_ins && (last_ins->opcode == OP_STOREI1_MEMBASE_REG) &&
2092 ins->inst_basereg == last_ins->inst_destbasereg &&
2093 ins->inst_offset == last_ins->inst_offset) {
2094 ins->opcode = (ins->opcode == OP_LOADI1_MEMBASE) ? OP_ICONV_TO_I1 : OP_ICONV_TO_U1;
2095 ins->sreg1 = last_ins->sreg1;
2098 case OP_LOADU2_MEMBASE:
2099 case OP_LOADI2_MEMBASE:
2100 if (last_ins && (last_ins->opcode == OP_STOREI2_MEMBASE_REG) &&
2101 ins->inst_basereg == last_ins->inst_destbasereg &&
2102 ins->inst_offset == last_ins->inst_offset) {
2103 ins->opcode = (ins->opcode == OP_LOADI2_MEMBASE) ? OP_ICONV_TO_I2 : OP_ICONV_TO_U2;
2104 ins->sreg1 = last_ins->sreg1;
2107 #ifdef __mono_ppc64__
2108 case OP_LOADU4_MEMBASE:
2109 case OP_LOADI4_MEMBASE:
2110 if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_REG) &&
2111 ins->inst_basereg == last_ins->inst_destbasereg &&
2112 ins->inst_offset == last_ins->inst_offset) {
2113 ins->opcode = (ins->opcode == OP_LOADI4_MEMBASE) ? OP_ICONV_TO_I4 : OP_ICONV_TO_U4;
2114 ins->sreg1 = last_ins->sreg1;
2119 ins->opcode = OP_MOVE;
2123 if (ins->dreg == ins->sreg1) {
2124 MONO_DELETE_INS (bb, ins);
2128 * OP_MOVE sreg, dreg
2129 * OP_MOVE dreg, sreg
2131 if (last_ins && last_ins->opcode == OP_MOVE &&
2132 ins->sreg1 == last_ins->dreg &&
2133 ins->dreg == last_ins->sreg1) {
2134 MONO_DELETE_INS (bb, ins);
2142 bb->last_ins = last_ins;
2146 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
2148 switch (ins->opcode) {
2149 case OP_ICONV_TO_R_UN: {
2150 #if G_BYTE_ORDER == G_BIG_ENDIAN
2151 static const guint64 adjust_val = 0x4330000000000000ULL;
2153 static const guint64 adjust_val = 0x0000000000003043ULL;
2155 int msw_reg = mono_alloc_ireg (cfg);
2156 int adj_reg = mono_alloc_freg (cfg);
2157 int tmp_reg = mono_alloc_freg (cfg);
2158 int basereg = ppc_sp;
2160 MONO_EMIT_NEW_ICONST (cfg, msw_reg, 0x43300000);
2161 if (!ppc_is_imm16 (offset + 4)) {
2162 basereg = mono_alloc_ireg (cfg);
2163 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_IADD_IMM, basereg, cfg->frame_reg, offset);
2165 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, basereg, offset, msw_reg);
2166 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, basereg, offset + 4, ins->sreg1);
2167 MONO_EMIT_NEW_LOAD_R8 (cfg, adj_reg, &adjust_val);
2168 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, tmp_reg, basereg, offset);
2169 MONO_EMIT_NEW_BIALU (cfg, OP_FSUB, ins->dreg, tmp_reg, adj_reg);
2170 ins->opcode = OP_NOP;
2173 #ifndef __mono_ppc64__
2174 case OP_ICONV_TO_R4:
2175 case OP_ICONV_TO_R8: {
2176 /* If we have a PPC_FEATURE_64 machine we can avoid
2177 this and use the fcfid instruction. Otherwise
2178 on an old 32-bit chip and we have to do this the
2180 if (!(cpu_hw_caps & PPC_ISA_64)) {
2181 /* FIXME: change precision for CEE_CONV_R4 */
2182 static const guint64 adjust_val = 0x4330000080000000ULL;
2183 int msw_reg = mono_alloc_ireg (cfg);
2184 int xored = mono_alloc_ireg (cfg);
2185 int adj_reg = mono_alloc_freg (cfg);
2186 int tmp_reg = mono_alloc_freg (cfg);
2187 int basereg = ppc_sp;
2189 if (!ppc_is_imm16 (offset + 4)) {
2190 basereg = mono_alloc_ireg (cfg);
2191 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_IADD_IMM, basereg, cfg->frame_reg, offset);
2193 MONO_EMIT_NEW_ICONST (cfg, msw_reg, 0x43300000);
2194 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, basereg, offset, msw_reg);
2195 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_XOR_IMM, xored, ins->sreg1, 0x80000000);
2196 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, basereg, offset + 4, xored);
2197 MONO_EMIT_NEW_LOAD_R8 (cfg, adj_reg, (gpointer)&adjust_val);
2198 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, tmp_reg, basereg, offset);
2199 MONO_EMIT_NEW_BIALU (cfg, OP_FSUB, ins->dreg, tmp_reg, adj_reg);
2200 if (ins->opcode == OP_ICONV_TO_R4)
2201 MONO_EMIT_NEW_UNALU (cfg, OP_FCONV_TO_R4, ins->dreg, ins->dreg);
2202 ins->opcode = OP_NOP;
2208 int msw_reg = mono_alloc_ireg (cfg);
2209 int basereg = ppc_sp;
2211 if (!ppc_is_imm16 (offset + 4)) {
2212 basereg = mono_alloc_ireg (cfg);
2213 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_IADD_IMM, basereg, cfg->frame_reg, offset);
2215 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG, basereg, offset, ins->sreg1);
2216 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI4_MEMBASE, msw_reg, basereg, offset);
2217 MONO_EMIT_NEW_UNALU (cfg, OP_CHECK_FINITE, -1, msw_reg);
2218 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, ins->dreg, ins->sreg1);
2219 ins->opcode = OP_NOP;
2222 #ifdef __mono_ppc64__
2224 case OP_IADD_OVF_UN:
2226 int shifted1_reg = mono_alloc_ireg (cfg);
2227 int shifted2_reg = mono_alloc_ireg (cfg);
2228 int result_shifted_reg = mono_alloc_ireg (cfg);
2230 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHL_IMM, shifted1_reg, ins->sreg1, 32);
2231 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHL_IMM, shifted2_reg, ins->sreg2, 32);
2232 MONO_EMIT_NEW_BIALU (cfg, ins->opcode, result_shifted_reg, shifted1_reg, shifted2_reg);
2233 if (ins->opcode == OP_IADD_OVF_UN)
2234 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHR_UN_IMM, ins->dreg, result_shifted_reg, 32);
2236 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHR_IMM, ins->dreg, result_shifted_reg, 32);
2237 ins->opcode = OP_NOP;
2244 mono_arch_decompose_long_opts (MonoCompile *cfg, MonoInst *ins)
2246 switch (ins->opcode) {
2248 /* ADC sets the condition code */
2249 MONO_EMIT_NEW_BIALU (cfg, OP_ADDCC, ins->dreg + 1, ins->sreg1 + 1, ins->sreg2 + 1);
2250 MONO_EMIT_NEW_BIALU (cfg, OP_ADD_OVF_CARRY, ins->dreg + 2, ins->sreg1 + 2, ins->sreg2 + 2);
2253 case OP_LADD_OVF_UN:
2254 /* ADC sets the condition code */
2255 MONO_EMIT_NEW_BIALU (cfg, OP_ADDCC, ins->dreg + 1, ins->sreg1 + 1, ins->sreg2 + 1);
2256 MONO_EMIT_NEW_BIALU (cfg, OP_ADD_OVF_UN_CARRY, ins->dreg + 2, ins->sreg1 + 2, ins->sreg2 + 2);
2260 /* SBB sets the condition code */
2261 MONO_EMIT_NEW_BIALU (cfg, OP_SUBCC, ins->dreg + 1, ins->sreg1 + 1, ins->sreg2 + 1);
2262 MONO_EMIT_NEW_BIALU (cfg, OP_SUB_OVF_CARRY, ins->dreg + 2, ins->sreg1 + 2, ins->sreg2 + 2);
2265 case OP_LSUB_OVF_UN:
2266 /* SBB sets the condition code */
2267 MONO_EMIT_NEW_BIALU (cfg, OP_SUBCC, ins->dreg + 1, ins->sreg1 + 1, ins->sreg2 + 1);
2268 MONO_EMIT_NEW_BIALU (cfg, OP_SUB_OVF_UN_CARRY, ins->dreg + 2, ins->sreg1 + 2, ins->sreg2 + 2);
2272 /* From gcc generated code */
2273 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_PPC_SUBFIC, ins->dreg + 1, ins->sreg1 + 1, 0);
2274 MONO_EMIT_NEW_UNALU (cfg, OP_PPC_SUBFZE, ins->dreg + 2, ins->sreg1 + 2);
2283 * the branch_b0_table should maintain the order of these
2297 branch_b0_table [] = {
2312 branch_b1_table [] = {
2326 #define NEW_INS(cfg,dest,op) do { \
2327 MONO_INST_NEW((cfg), (dest), (op)); \
2328 mono_bblock_insert_after_ins (bb, last_ins, (dest)); \
2332 map_to_reg_reg_op (int op)
2341 case OP_COMPARE_IMM:
2343 case OP_ICOMPARE_IMM:
2345 case OP_LCOMPARE_IMM:
2361 case OP_LOAD_MEMBASE:
2362 return OP_LOAD_MEMINDEX;
2363 case OP_LOADI4_MEMBASE:
2364 return OP_LOADI4_MEMINDEX;
2365 case OP_LOADU4_MEMBASE:
2366 return OP_LOADU4_MEMINDEX;
2367 case OP_LOADI8_MEMBASE:
2368 return OP_LOADI8_MEMINDEX;
2369 case OP_LOADU1_MEMBASE:
2370 return OP_LOADU1_MEMINDEX;
2371 case OP_LOADI2_MEMBASE:
2372 return OP_LOADI2_MEMINDEX;
2373 case OP_LOADU2_MEMBASE:
2374 return OP_LOADU2_MEMINDEX;
2375 case OP_LOADI1_MEMBASE:
2376 return OP_LOADI1_MEMINDEX;
2377 case OP_LOADR4_MEMBASE:
2378 return OP_LOADR4_MEMINDEX;
2379 case OP_LOADR8_MEMBASE:
2380 return OP_LOADR8_MEMINDEX;
2381 case OP_STOREI1_MEMBASE_REG:
2382 return OP_STOREI1_MEMINDEX;
2383 case OP_STOREI2_MEMBASE_REG:
2384 return OP_STOREI2_MEMINDEX;
2385 case OP_STOREI4_MEMBASE_REG:
2386 return OP_STOREI4_MEMINDEX;
2387 case OP_STOREI8_MEMBASE_REG:
2388 return OP_STOREI8_MEMINDEX;
2389 case OP_STORE_MEMBASE_REG:
2390 return OP_STORE_MEMINDEX;
2391 case OP_STORER4_MEMBASE_REG:
2392 return OP_STORER4_MEMINDEX;
2393 case OP_STORER8_MEMBASE_REG:
2394 return OP_STORER8_MEMINDEX;
2395 case OP_STORE_MEMBASE_IMM:
2396 return OP_STORE_MEMBASE_REG;
2397 case OP_STOREI1_MEMBASE_IMM:
2398 return OP_STOREI1_MEMBASE_REG;
2399 case OP_STOREI2_MEMBASE_IMM:
2400 return OP_STOREI2_MEMBASE_REG;
2401 case OP_STOREI4_MEMBASE_IMM:
2402 return OP_STOREI4_MEMBASE_REG;
2403 case OP_STOREI8_MEMBASE_IMM:
2404 return OP_STOREI8_MEMBASE_REG;
2406 return mono_op_imm_to_op (op);
2409 //#define map_to_reg_reg_op(op) (cfg->new_ir? mono_op_imm_to_op (op): map_to_reg_reg_op (op))
2411 #define compare_opcode_is_unsigned(opcode) \
2412 (((opcode) >= CEE_BNE_UN && (opcode) <= CEE_BLT_UN) || \
2413 ((opcode) >= OP_IBNE_UN && (opcode) <= OP_IBLT_UN) || \
2414 ((opcode) >= OP_LBNE_UN && (opcode) <= OP_LBLT_UN) || \
2415 ((opcode) >= OP_COND_EXC_NE_UN && (opcode) <= OP_COND_EXC_LT_UN) || \
2416 ((opcode) >= OP_COND_EXC_INE_UN && (opcode) <= OP_COND_EXC_ILT_UN) || \
2417 ((opcode) == OP_CLT_UN || (opcode) == OP_CGT_UN || \
2418 (opcode) == OP_ICLT_UN || (opcode) == OP_ICGT_UN || \
2419 (opcode) == OP_LCLT_UN || (opcode) == OP_LCGT_UN))
2422 * Remove from the instruction list the instructions that can't be
2423 * represented with very simple instructions with no register
2427 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2429 MonoInst *ins, *next, *temp, *last_ins = NULL;
2432 MONO_BB_FOR_EACH_INS (bb, ins) {
2434 switch (ins->opcode) {
2435 case OP_IDIV_UN_IMM:
2438 case OP_IREM_UN_IMM:
2439 CASE_PPC64 (OP_LREM_IMM) {
2440 NEW_INS (cfg, temp, OP_ICONST);
2441 temp->inst_c0 = ins->inst_imm;
2442 temp->dreg = mono_alloc_ireg (cfg);
2443 ins->sreg2 = temp->dreg;
2444 if (ins->opcode == OP_IDIV_IMM)
2445 ins->opcode = OP_IDIV;
2446 else if (ins->opcode == OP_IREM_IMM)
2447 ins->opcode = OP_IREM;
2448 else if (ins->opcode == OP_IDIV_UN_IMM)
2449 ins->opcode = OP_IDIV_UN;
2450 else if (ins->opcode == OP_IREM_UN_IMM)
2451 ins->opcode = OP_IREM_UN;
2452 else if (ins->opcode == OP_LREM_IMM)
2453 ins->opcode = OP_LREM;
2455 /* handle rem separately */
2460 CASE_PPC64 (OP_LREM)
2461 CASE_PPC64 (OP_LREM_UN) {
2463 /* we change a rem dest, src1, src2 to
2464 * div temp1, src1, src2
2465 * mul temp2, temp1, src2
2466 * sub dest, src1, temp2
2468 if (ins->opcode == OP_IREM || ins->opcode == OP_IREM_UN) {
2469 NEW_INS (cfg, mul, OP_IMUL);
2470 NEW_INS (cfg, temp, ins->opcode == OP_IREM? OP_IDIV: OP_IDIV_UN);
2471 ins->opcode = OP_ISUB;
2473 NEW_INS (cfg, mul, OP_LMUL);
2474 NEW_INS (cfg, temp, ins->opcode == OP_LREM? OP_LDIV: OP_LDIV_UN);
2475 ins->opcode = OP_LSUB;
2477 temp->sreg1 = ins->sreg1;
2478 temp->sreg2 = ins->sreg2;
2479 temp->dreg = mono_alloc_ireg (cfg);
2480 mul->sreg1 = temp->dreg;
2481 mul->sreg2 = ins->sreg2;
2482 mul->dreg = mono_alloc_ireg (cfg);
2483 ins->sreg2 = mul->dreg;
2487 CASE_PPC64 (OP_LADD_IMM)
2490 if (!ppc_is_imm16 (ins->inst_imm)) {
2491 NEW_INS (cfg, temp, OP_ICONST);
2492 temp->inst_c0 = ins->inst_imm;
2493 temp->dreg = mono_alloc_ireg (cfg);
2494 ins->sreg2 = temp->dreg;
2495 ins->opcode = map_to_reg_reg_op (ins->opcode);
2499 CASE_PPC64 (OP_LSUB_IMM)
2501 if (!ppc_is_imm16 (-ins->inst_imm)) {
2502 NEW_INS (cfg, temp, OP_ICONST);
2503 temp->inst_c0 = ins->inst_imm;
2504 temp->dreg = mono_alloc_ireg (cfg);
2505 ins->sreg2 = temp->dreg;
2506 ins->opcode = map_to_reg_reg_op (ins->opcode);
2518 gboolean is_imm = ((ins->inst_imm & 0xffff0000) && (ins->inst_imm & 0xffff));
2519 #ifdef __mono_ppc64__
2520 if (ins->inst_imm & 0xffffffff00000000ULL)
2524 NEW_INS (cfg, temp, OP_ICONST);
2525 temp->inst_c0 = ins->inst_imm;
2526 temp->dreg = mono_alloc_ireg (cfg);
2527 ins->sreg2 = temp->dreg;
2528 ins->opcode = map_to_reg_reg_op (ins->opcode);
2537 NEW_INS (cfg, temp, OP_ICONST);
2538 temp->inst_c0 = ins->inst_imm;
2539 temp->dreg = mono_alloc_ireg (cfg);
2540 ins->sreg2 = temp->dreg;
2541 ins->opcode = map_to_reg_reg_op (ins->opcode);
2543 case OP_COMPARE_IMM:
2544 case OP_ICOMPARE_IMM:
2545 CASE_PPC64 (OP_LCOMPARE_IMM)
2547 /* Branch opts can eliminate the branch */
2548 if (!next || (!(MONO_IS_COND_BRANCH_OP (next) || MONO_IS_COND_EXC (next) || MONO_IS_SETCC (next)))) {
2549 ins->opcode = OP_NOP;
2553 if (compare_opcode_is_unsigned (next->opcode)) {
2554 if (!ppc_is_uimm16 (ins->inst_imm)) {
2555 NEW_INS (cfg, temp, OP_ICONST);
2556 temp->inst_c0 = ins->inst_imm;
2557 temp->dreg = mono_alloc_ireg (cfg);
2558 ins->sreg2 = temp->dreg;
2559 ins->opcode = map_to_reg_reg_op (ins->opcode);
2562 if (!ppc_is_imm16 (ins->inst_imm)) {
2563 NEW_INS (cfg, temp, OP_ICONST);
2564 temp->inst_c0 = ins->inst_imm;
2565 temp->dreg = mono_alloc_ireg (cfg);
2566 ins->sreg2 = temp->dreg;
2567 ins->opcode = map_to_reg_reg_op (ins->opcode);
2573 if (ins->inst_imm == 1) {
2574 ins->opcode = OP_MOVE;
2577 if (ins->inst_imm == 0) {
2578 ins->opcode = OP_ICONST;
2582 imm = mono_is_power_of_two (ins->inst_imm);
2584 ins->opcode = OP_SHL_IMM;
2585 ins->inst_imm = imm;
2588 if (!ppc_is_imm16 (ins->inst_imm)) {
2589 NEW_INS (cfg, temp, OP_ICONST);
2590 temp->inst_c0 = ins->inst_imm;
2591 temp->dreg = mono_alloc_ireg (cfg);
2592 ins->sreg2 = temp->dreg;
2593 ins->opcode = map_to_reg_reg_op (ins->opcode);
2596 case OP_LOCALLOC_IMM:
2597 NEW_INS (cfg, temp, OP_ICONST);
2598 temp->inst_c0 = ins->inst_imm;
2599 temp->dreg = mono_alloc_ireg (cfg);
2600 ins->sreg1 = temp->dreg;
2601 ins->opcode = OP_LOCALLOC;
2603 case OP_LOAD_MEMBASE:
2604 case OP_LOADI4_MEMBASE:
2605 CASE_PPC64 (OP_LOADI8_MEMBASE)
2606 case OP_LOADU4_MEMBASE:
2607 case OP_LOADI2_MEMBASE:
2608 case OP_LOADU2_MEMBASE:
2609 case OP_LOADI1_MEMBASE:
2610 case OP_LOADU1_MEMBASE:
2611 case OP_LOADR4_MEMBASE:
2612 case OP_LOADR8_MEMBASE:
2613 case OP_STORE_MEMBASE_REG:
2614 CASE_PPC64 (OP_STOREI8_MEMBASE_REG)
2615 case OP_STOREI4_MEMBASE_REG:
2616 case OP_STOREI2_MEMBASE_REG:
2617 case OP_STOREI1_MEMBASE_REG:
2618 case OP_STORER4_MEMBASE_REG:
2619 case OP_STORER8_MEMBASE_REG:
2620 /* we can do two things: load the immed in a register
2621 * and use an indexed load, or see if the immed can be
2622 * represented as an ad_imm + a load with a smaller offset
2623 * that fits. We just do the first for now, optimize later.
2625 if (ppc_is_imm16 (ins->inst_offset))
2627 NEW_INS (cfg, temp, OP_ICONST);
2628 temp->inst_c0 = ins->inst_offset;
2629 temp->dreg = mono_alloc_ireg (cfg);
2630 ins->sreg2 = temp->dreg;
2631 ins->opcode = map_to_reg_reg_op (ins->opcode);
2633 case OP_STORE_MEMBASE_IMM:
2634 case OP_STOREI1_MEMBASE_IMM:
2635 case OP_STOREI2_MEMBASE_IMM:
2636 case OP_STOREI4_MEMBASE_IMM:
2637 CASE_PPC64 (OP_STOREI8_MEMBASE_IMM)
2638 NEW_INS (cfg, temp, OP_ICONST);
2639 temp->inst_c0 = ins->inst_imm;
2640 temp->dreg = mono_alloc_ireg (cfg);
2641 ins->sreg1 = temp->dreg;
2642 ins->opcode = map_to_reg_reg_op (ins->opcode);
2644 goto loop_start; /* make it handle the possibly big ins->inst_offset */
2647 if (cfg->compile_aot) {
2648 /* Keep these in the aot case */
2651 NEW_INS (cfg, temp, OP_ICONST);
2652 temp->inst_c0 = (gulong)ins->inst_p0;
2653 temp->dreg = mono_alloc_ireg (cfg);
2654 ins->inst_basereg = temp->dreg;
2655 ins->inst_offset = 0;
2656 ins->opcode = ins->opcode == OP_R4CONST? OP_LOADR4_MEMBASE: OP_LOADR8_MEMBASE;
2658 /* make it handle the possibly big ins->inst_offset
2659 * later optimize to use lis + load_membase
2665 bb->last_ins = last_ins;
2666 bb->max_vreg = cfg->next_vreg;
2670 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2672 long offset = cfg->arch.fp_conv_var_offset;
2674 /* sreg is a float, dreg is an integer reg. ppc_f0 is used a scratch */
2675 #ifdef __mono_ppc64__
2677 ppc_fctidz (code, ppc_f0, sreg);
2682 ppc_fctiwz (code, ppc_f0, sreg);
2685 if (ppc_is_imm16 (offset + sub_offset)) {
2686 ppc_stfd (code, ppc_f0, offset, cfg->frame_reg);
2688 ppc_ldr (code, dreg, offset + sub_offset, cfg->frame_reg);
2690 ppc_lwz (code, dreg, offset + sub_offset, cfg->frame_reg);
2692 ppc_load (code, dreg, offset);
2693 ppc_add (code, dreg, dreg, cfg->frame_reg);
2694 ppc_stfd (code, ppc_f0, 0, dreg);
2696 ppc_ldr (code, dreg, sub_offset, dreg);
2698 ppc_lwz (code, dreg, sub_offset, dreg);
2702 ppc_andid (code, dreg, dreg, 0xff);
2704 ppc_andid (code, dreg, dreg, 0xffff);
2705 #ifdef __mono_ppc64__
2707 ppc_clrldi (code, dreg, dreg, 32);
2711 ppc_extsb (code, dreg, dreg);
2713 ppc_extsh (code, dreg, dreg);
2714 #ifdef __mono_ppc64__
2716 ppc_extsw (code, dreg, dreg);
2724 const guchar *target;
2729 #define is_call_imm(diff) ((glong)(diff) >= -33554432 && (glong)(diff) <= 33554431)
2732 search_thunk_slot (void *data, int csize, int bsize, void *user_data) {
2733 #ifdef __mono_ppc64__
2734 g_assert_not_reached ();
2736 PatchData *pdata = (PatchData*)user_data;
2737 guchar *code = data;
2738 guint32 *thunks = data;
2739 guint32 *endthunks = (guint32*)(code + bsize);
2743 int difflow, diffhigh;
2745 /* always ensure a call from pdata->code can reach to the thunks without further thunks */
2746 difflow = (char*)pdata->code - (char*)thunks;
2747 diffhigh = (char*)pdata->code - (char*)endthunks;
2748 if (!((is_call_imm (thunks) && is_call_imm (endthunks)) || (is_call_imm (difflow) && is_call_imm (diffhigh))))
2751 templ = (guchar*)load;
2752 ppc_load_sequence (templ, ppc_r0, pdata->target);
2754 //g_print ("thunk nentries: %d\n", ((char*)endthunks - (char*)thunks)/16);
2755 if ((pdata->found == 2) || (pdata->code >= code && pdata->code <= code + csize)) {
2756 while (thunks < endthunks) {
2757 //g_print ("looking for target: %p at %p (%08x-%08x)\n", pdata->target, thunks, thunks [0], thunks [1]);
2758 if ((thunks [0] == load [0]) && (thunks [1] == load [1])) {
2759 ppc_patch (pdata->code, (guchar*)thunks);
2762 static int num_thunks = 0;
2764 if ((num_thunks % 20) == 0)
2765 g_print ("num_thunks lookup: %d\n", num_thunks);
2768 } else if ((thunks [0] == 0) && (thunks [1] == 0)) {
2769 /* found a free slot instead: emit thunk */
2770 code = (guchar*)thunks;
2771 ppc_lis (code, ppc_r0, (gulong)(pdata->target) >> 16);
2772 ppc_ori (code, ppc_r0, ppc_r0, (gulong)(pdata->target) & 0xffff);
2773 ppc_mtctr (code, ppc_r0);
2774 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
2775 mono_arch_flush_icache ((guchar*)thunks, 16);
2777 ppc_patch (pdata->code, (guchar*)thunks);
2780 static int num_thunks = 0;
2782 if ((num_thunks % 20) == 0)
2783 g_print ("num_thunks: %d\n", num_thunks);
2787 /* skip 16 bytes, the size of the thunk */
2791 //g_print ("failed thunk lookup for %p from %p at %p (%d entries)\n", pdata->target, pdata->code, data, count);
2798 handle_thunk (int absolute, guchar *code, const guchar *target) {
2799 MonoDomain *domain = mono_domain_get ();
2803 pdata.target = target;
2804 pdata.absolute = absolute;
2807 mono_domain_lock (domain);
2808 mono_domain_code_foreach (domain, search_thunk_slot, &pdata);
2811 /* this uses the first available slot */
2813 mono_domain_code_foreach (domain, search_thunk_slot, &pdata);
2815 mono_domain_unlock (domain);
2817 if (pdata.found != 1)
2818 g_print ("thunk failed for %p from %p\n", target, code);
2819 g_assert (pdata.found == 1);
2823 patch_ins (guint8 *code, guint32 ins)
2825 *(guint32*)code = ins;
2826 mono_arch_flush_icache (code, 4);
2830 ppc_patch_full (guchar *code, const guchar *target, gboolean is_fd)
2832 guint32 ins = *(guint32*)code;
2833 guint32 prim = ins >> 26;
2836 //g_print ("patching 0x%08x (0x%08x) to point to 0x%08x\n", code, ins, target);
2838 // prefer relative branches, they are more position independent (e.g. for AOT compilation).
2839 gint diff = target - code;
2842 if (diff <= 33554431){
2843 ins = (18 << 26) | (diff) | (ins & 1);
2844 patch_ins (code, ins);
2848 /* diff between 0 and -33554432 */
2849 if (diff >= -33554432){
2850 ins = (18 << 26) | (diff & ~0xfc000000) | (ins & 1);
2851 patch_ins (code, ins);
2856 if ((glong)target >= 0){
2857 if ((glong)target <= 33554431){
2858 ins = (18 << 26) | ((gulong) target) | (ins & 1) | 2;
2859 patch_ins (code, ins);
2863 if ((glong)target >= -33554432){
2864 ins = (18 << 26) | (((gulong)target) & ~0xfc000000) | (ins & 1) | 2;
2865 patch_ins (code, ins);
2870 handle_thunk (TRUE, code, target);
2873 g_assert_not_reached ();
2881 guint32 li = (gulong)target;
2882 ins = (ins & 0xffff0000) | (ins & 3);
2883 ovf = li & 0xffff0000;
2884 if (ovf != 0 && ovf != 0xffff0000)
2885 g_assert_not_reached ();
2888 // FIXME: assert the top bits of li are 0
2890 gint diff = target - code;
2891 ins = (ins & 0xffff0000) | (ins & 3);
2892 ovf = diff & 0xffff0000;
2893 if (ovf != 0 && ovf != 0xffff0000)
2894 g_assert_not_reached ();
2898 patch_ins (code, ins);
2902 if (prim == 15 || ins == 0x4e800021 || ins == 0x4e800020 || ins == 0x4e800420) {
2903 #ifdef __mono_ppc64__
2904 guint32 *seq = (guint32*)code;
2905 guint32 *branch_ins;
2907 /* the trampoline code will try to patch the blrl, blr, bcctr */
2908 if (ins == 0x4e800021 || ins == 0x4e800020 || ins == 0x4e800420) {
2910 if (ppc_is_load_op (seq [-3]) || ppc_opcode (seq [-3]) == 31) /* ld || lwz || mr */
2915 if (ppc_is_load_op (seq [5])
2916 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
2917 /* With function descs we need to do more careful
2919 || ppc_opcode (seq [5]) == 31 /* ld || lwz || mr */
2922 branch_ins = seq + 8;
2924 branch_ins = seq + 6;
2927 seq = (guint32*)code;
2928 /* this is the lis/ori/sldi/oris/ori/(ld/ld|mr/nop)/mtlr/blrl sequence */
2929 g_assert (mono_ppc_is_direct_call_sequence (branch_ins));
2931 if (ppc_is_load_op (seq [5])) {
2932 g_assert (ppc_is_load_op (seq [6]));
2935 guint8 *buf = (guint8*)&seq [5];
2936 ppc_mr (buf, ppc_r0, ppc_r12);
2941 target = mono_get_addr_from_ftnptr ((gpointer)target);
2944 /* FIXME: make this thread safe */
2945 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
2946 /* FIXME: we're assuming we're using r12 here */
2947 ppc_load_ptr_sequence (code, ppc_r12, target);
2949 ppc_load_ptr_sequence (code, ppc_r0, target);
2951 mono_arch_flush_icache ((guint8*)seq, 28);
2954 /* the trampoline code will try to patch the blrl, blr, bcctr */
2955 if (ins == 0x4e800021 || ins == 0x4e800020 || ins == 0x4e800420) {
2958 /* this is the lis/ori/mtlr/blrl sequence */
2959 seq = (guint32*)code;
2960 g_assert ((seq [0] >> 26) == 15);
2961 g_assert ((seq [1] >> 26) == 24);
2962 g_assert ((seq [2] >> 26) == 31);
2963 g_assert (seq [3] == 0x4e800021 || seq [3] == 0x4e800020 || seq [3] == 0x4e800420);
2964 /* FIXME: make this thread safe */
2965 ppc_lis (code, ppc_r0, (guint32)(target) >> 16);
2966 ppc_ori (code, ppc_r0, ppc_r0, (guint32)(target) & 0xffff);
2967 mono_arch_flush_icache (code - 8, 8);
2970 g_assert_not_reached ();
2972 // g_print ("patched with 0x%08x\n", ins);
2976 ppc_patch (guchar *code, const guchar *target)
2978 ppc_patch_full (code, target, FALSE);
2982 mono_ppc_patch (guchar *code, const guchar *target)
2984 ppc_patch (code, target);
2988 emit_move_return_value (MonoCompile *cfg, MonoInst *ins, guint8 *code)
2990 switch (ins->opcode) {
2993 case OP_FCALL_MEMBASE:
2994 if (ins->dreg != ppc_f1)
2995 ppc_fmr (code, ins->dreg, ppc_f1);
3003 ins_native_length (MonoCompile *cfg, MonoInst *ins)
3005 return ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
3009 emit_reserve_param_area (MonoCompile *cfg, guint8 *code)
3011 long size = cfg->param_area;
3013 size += MONO_ARCH_FRAME_ALIGNMENT - 1;
3014 size &= -MONO_ARCH_FRAME_ALIGNMENT;
3019 ppc_ldptr (code, ppc_r0, 0, ppc_sp);
3020 if (ppc_is_imm16 (-size)) {
3021 ppc_stptr_update (code, ppc_r0, -size, ppc_sp);
3023 ppc_load (code, ppc_r12, -size);
3024 ppc_stptr_update_indexed (code, ppc_r0, ppc_sp, ppc_r12);
3031 emit_unreserve_param_area (MonoCompile *cfg, guint8 *code)
3033 long size = cfg->param_area;
3035 size += MONO_ARCH_FRAME_ALIGNMENT - 1;
3036 size &= -MONO_ARCH_FRAME_ALIGNMENT;
3041 ppc_ldptr (code, ppc_r0, 0, ppc_sp);
3042 if (ppc_is_imm16 (size)) {
3043 ppc_stptr_update (code, ppc_r0, size, ppc_sp);
3045 ppc_load (code, ppc_r12, size);
3046 ppc_stptr_update_indexed (code, ppc_r0, ppc_sp, ppc_r12);
3052 #define MASK_SHIFT_IMM(i) ((i) & MONO_PPC_32_64_CASE (0x1f, 0x3f))
3056 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
3058 MonoInst *ins, *next;
3061 guint8 *code = cfg->native_code + cfg->code_len;
3062 MonoInst *last_ins = NULL;
3063 guint last_offset = 0;
3067 /* we don't align basic blocks of loops on ppc */
3069 if (cfg->verbose_level > 2)
3070 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
3072 cpos = bb->max_offset;
3074 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
3075 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
3076 //g_assert (!mono_compile_aot);
3079 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
3080 /* this is not thread save, but good enough */
3081 /* fixme: howto handle overflows? */
3082 //x86_inc_mem (code, &cov->data [bb->dfn].count);
3085 MONO_BB_FOR_EACH_INS (bb, ins) {
3086 offset = code - cfg->native_code;
3088 max_len = ins_native_length (cfg, ins);
3090 if (offset > (cfg->code_size - max_len - 16)) {
3091 cfg->code_size *= 2;
3092 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
3093 code = cfg->native_code + offset;
3095 // if (ins->cil_code)
3096 // g_print ("cil code\n");
3097 mono_debug_record_line_number (cfg, ins, offset);
3099 switch (normalize_opcode (ins->opcode)) {
3100 case OP_RELAXED_NOP:
3103 case OP_DUMMY_STORE:
3104 case OP_NOT_REACHED:
3107 case OP_SEQ_POINT: {
3110 if (cfg->compile_aot)
3114 * Read from the single stepping trigger page. This will cause a
3115 * SIGSEGV when single stepping is enabled.
3116 * We do this _before_ the breakpoint, so single stepping after
3117 * a breakpoint is hit will step to the next IL offset.
3119 if (ins->flags & MONO_INST_SINGLE_STEP_LOC) {
3120 ppc_load (code, ppc_r12, (gsize)ss_trigger_page);
3121 ppc_ldptr (code, ppc_r12, 0, ppc_r12);
3124 mono_add_seq_point (cfg, bb, ins, code - cfg->native_code);
3127 * A placeholder for a possible breakpoint inserted by
3128 * mono_arch_set_breakpoint ().
3130 for (i = 0; i < BREAKPOINT_SIZE / 4; ++i)
3135 emit_tls_access (code, ins->dreg, ins->inst_offset);
3138 ppc_mullw (code, ppc_r0, ins->sreg1, ins->sreg2);
3139 ppc_mulhw (code, ppc_r3, ins->sreg1, ins->sreg2);
3140 ppc_mr (code, ppc_r4, ppc_r0);
3143 ppc_mullw (code, ppc_r0, ins->sreg1, ins->sreg2);
3144 ppc_mulhwu (code, ppc_r3, ins->sreg1, ins->sreg2);
3145 ppc_mr (code, ppc_r4, ppc_r0);
3147 case OP_MEMORY_BARRIER:
3150 case OP_STOREI1_MEMBASE_REG:
3151 if (ppc_is_imm16 (ins->inst_offset)) {
3152 ppc_stb (code, ins->sreg1, ins->inst_offset, ins->inst_destbasereg);
3154 if (ppc_is_imm32 (ins->inst_offset)) {
3155 ppc_addis (code, ppc_r11, ins->inst_destbasereg, ppc_ha(ins->inst_offset));
3156 ppc_stb (code, ins->sreg1, ins->inst_offset, ppc_r11);
3158 ppc_load (code, ppc_r0, ins->inst_offset);
3159 ppc_stbx (code, ins->sreg1, ins->inst_destbasereg, ppc_r0);
3163 case OP_STOREI2_MEMBASE_REG:
3164 if (ppc_is_imm16 (ins->inst_offset)) {
3165 ppc_sth (code, ins->sreg1, ins->inst_offset, ins->inst_destbasereg);
3167 if (ppc_is_imm32 (ins->inst_offset)) {
3168 ppc_addis (code, ppc_r11, ins->inst_destbasereg, ppc_ha(ins->inst_offset));
3169 ppc_sth (code, ins->sreg1, ins->inst_offset, ppc_r11);
3171 ppc_load (code, ppc_r0, ins->inst_offset);
3172 ppc_sthx (code, ins->sreg1, ins->inst_destbasereg, ppc_r0);
3176 case OP_STORE_MEMBASE_REG:
3177 if (ppc_is_imm16 (ins->inst_offset)) {
3178 ppc_stptr (code, ins->sreg1, ins->inst_offset, ins->inst_destbasereg);
3180 if (ppc_is_imm32 (ins->inst_offset)) {
3181 ppc_addis (code, ppc_r11, ins->inst_destbasereg, ppc_ha(ins->inst_offset));
3182 ppc_stptr (code, ins->sreg1, ins->inst_offset, ppc_r11);
3184 ppc_load (code, ppc_r0, ins->inst_offset);
3185 ppc_stptr_indexed (code, ins->sreg1, ins->inst_destbasereg, ppc_r0);
3189 #ifdef __mono_ilp32__
3190 case OP_STOREI8_MEMBASE_REG:
3191 if (ppc_is_imm16 (ins->inst_offset)) {
3192 ppc_str (code, ins->sreg1, ins->inst_offset, ins->inst_destbasereg);
3194 ppc_load (code, ppc_r0, ins->inst_offset);
3195 ppc_str_indexed (code, ins->sreg1, ins->inst_destbasereg, ppc_r0);
3199 case OP_STOREI1_MEMINDEX:
3200 ppc_stbx (code, ins->sreg1, ins->inst_destbasereg, ins->sreg2);
3202 case OP_STOREI2_MEMINDEX:
3203 ppc_sthx (code, ins->sreg1, ins->inst_destbasereg, ins->sreg2);
3205 case OP_STORE_MEMINDEX:
3206 ppc_stptr_indexed (code, ins->sreg1, ins->inst_destbasereg, ins->sreg2);
3209 g_assert_not_reached ();
3211 case OP_LOAD_MEMBASE:
3212 if (ppc_is_imm16 (ins->inst_offset)) {
3213 ppc_ldptr (code, ins->dreg, ins->inst_offset, ins->inst_basereg);
3215 if (ppc_is_imm32 (ins->inst_offset) && (ins->dreg > 0)) {
3216 ppc_addis (code, ins->dreg, ins->inst_basereg, ppc_ha(ins->inst_offset));
3217 ppc_ldptr (code, ins->dreg, ins->inst_offset, ins->dreg);
3219 ppc_load (code, ppc_r0, ins->inst_offset);
3220 ppc_ldptr_indexed (code, ins->dreg, ins->inst_basereg, ppc_r0);
3224 case OP_LOADI4_MEMBASE:
3225 #ifdef __mono_ppc64__
3226 if (ppc_is_imm16 (ins->inst_offset)) {
3227 ppc_lwa (code, ins->dreg, ins->inst_offset, ins->inst_basereg);
3229 if (ppc_is_imm32 (ins->inst_offset) && (ins->dreg > 0)) {
3230 ppc_addis (code, ins->dreg, ins->inst_basereg, ppc_ha(ins->inst_offset));
3231 ppc_lwa (code, ins->dreg, ins->inst_offset, ins->dreg);
3233 ppc_load (code, ppc_r0, ins->inst_offset);
3234 ppc_lwax (code, ins->dreg, ins->inst_basereg, ppc_r0);
3239 case OP_LOADU4_MEMBASE:
3240 if (ppc_is_imm16 (ins->inst_offset)) {
3241 ppc_lwz (code, ins->dreg, ins->inst_offset, ins->inst_basereg);
3243 if (ppc_is_imm32 (ins->inst_offset) && (ins->dreg > 0)) {
3244 ppc_addis (code, ins->dreg, ins->inst_basereg, ppc_ha(ins->inst_offset));
3245 ppc_lwz (code, ins->dreg, ins->inst_offset, ins->dreg);
3247 ppc_load (code, ppc_r0, ins->inst_offset);
3248 ppc_lwzx (code, ins->dreg, ins->inst_basereg, ppc_r0);
3252 case OP_LOADI1_MEMBASE:
3253 case OP_LOADU1_MEMBASE:
3254 if (ppc_is_imm16 (ins->inst_offset)) {
3255 ppc_lbz (code, ins->dreg, ins->inst_offset, ins->inst_basereg);
3257 if (ppc_is_imm32 (ins->inst_offset) && (ins->dreg > 0)) {
3258 ppc_addis (code, ins->dreg, ins->inst_basereg, ppc_ha(ins->inst_offset));
3259 ppc_lbz (code, ins->dreg, ins->inst_offset, ins->dreg);
3261 ppc_load (code, ppc_r0, ins->inst_offset);
3262 ppc_lbzx (code, ins->dreg, ins->inst_basereg, ppc_r0);
3265 if (ins->opcode == OP_LOADI1_MEMBASE)
3266 ppc_extsb (code, ins->dreg, ins->dreg);
3268 case OP_LOADU2_MEMBASE:
3269 if (ppc_is_imm16 (ins->inst_offset)) {
3270 ppc_lhz (code, ins->dreg, ins->inst_offset, ins->inst_basereg);
3272 if (ppc_is_imm32 (ins->inst_offset) && (ins->dreg > 0)) {
3273 ppc_addis (code, ins->dreg, ins->inst_basereg, ppc_ha(ins->inst_offset));
3274 ppc_lhz (code, ins->dreg, ins->inst_offset, ins->dreg);
3276 ppc_load (code, ppc_r0, ins->inst_offset);
3277 ppc_lhzx (code, ins->dreg, ins->inst_basereg, ppc_r0);
3281 case OP_LOADI2_MEMBASE:
3282 if (ppc_is_imm16 (ins->inst_offset)) {
3283 ppc_lha (code, ins->dreg, ins->inst_offset, ins->inst_basereg);
3285 if (ppc_is_imm32 (ins->inst_offset) && (ins->dreg > 0)) {
3286 ppc_addis (code, ins->dreg, ins->inst_basereg, ppc_ha(ins->inst_offset));
3287 ppc_lha (code, ins->dreg, ins->inst_offset, ins->dreg);
3289 ppc_load (code, ppc_r0, ins->inst_offset);
3290 ppc_lhax (code, ins->dreg, ins->inst_basereg, ppc_r0);
3294 #ifdef __mono_ilp32__
3295 case OP_LOADI8_MEMBASE:
3296 if (ppc_is_imm16 (ins->inst_offset)) {
3297 ppc_ldr (code, ins->dreg, ins->inst_offset, ins->inst_basereg);
3299 ppc_load (code, ppc_r0, ins->inst_offset);
3300 ppc_ldr_indexed (code, ins->dreg, ins->inst_basereg, ppc_r0);
3304 case OP_LOAD_MEMINDEX:
3305 ppc_ldptr_indexed (code, ins->dreg, ins->inst_basereg, ins->sreg2);
3307 case OP_LOADI4_MEMINDEX:
3308 #ifdef __mono_ppc64__
3309 ppc_lwax (code, ins->dreg, ins->inst_basereg, ins->sreg2);
3312 case OP_LOADU4_MEMINDEX:
3313 ppc_lwzx (code, ins->dreg, ins->inst_basereg, ins->sreg2);
3315 case OP_LOADU2_MEMINDEX:
3316 ppc_lhzx (code, ins->dreg, ins->inst_basereg, ins->sreg2);
3318 case OP_LOADI2_MEMINDEX:
3319 ppc_lhax (code, ins->dreg, ins->inst_basereg, ins->sreg2);
3321 case OP_LOADU1_MEMINDEX:
3322 ppc_lbzx (code, ins->dreg, ins->inst_basereg, ins->sreg2);
3324 case OP_LOADI1_MEMINDEX:
3325 ppc_lbzx (code, ins->dreg, ins->inst_basereg, ins->sreg2);
3326 ppc_extsb (code, ins->dreg, ins->dreg);
3328 case OP_ICONV_TO_I1:
3329 CASE_PPC64 (OP_LCONV_TO_I1)
3330 ppc_extsb (code, ins->dreg, ins->sreg1);
3332 case OP_ICONV_TO_I2:
3333 CASE_PPC64 (OP_LCONV_TO_I2)
3334 ppc_extsh (code, ins->dreg, ins->sreg1);
3336 case OP_ICONV_TO_U1:
3337 CASE_PPC64 (OP_LCONV_TO_U1)
3338 ppc_clrlwi (code, ins->dreg, ins->sreg1, 24);
3340 case OP_ICONV_TO_U2:
3341 CASE_PPC64 (OP_LCONV_TO_U2)
3342 ppc_clrlwi (code, ins->dreg, ins->sreg1, 16);
3346 CASE_PPC64 (OP_LCOMPARE)
3347 L = (sizeof (mgreg_t) == 4 || ins->opcode == OP_ICOMPARE) ? 0 : 1;
3349 if (next && compare_opcode_is_unsigned (next->opcode))
3350 ppc_cmpl (code, 0, L, ins->sreg1, ins->sreg2);
3352 ppc_cmp (code, 0, L, ins->sreg1, ins->sreg2);
3354 case OP_COMPARE_IMM:
3355 case OP_ICOMPARE_IMM:
3356 CASE_PPC64 (OP_LCOMPARE_IMM)
3357 L = (sizeof (mgreg_t) == 4 || ins->opcode == OP_ICOMPARE_IMM) ? 0 : 1;
3359 if (next && compare_opcode_is_unsigned (next->opcode)) {
3360 if (ppc_is_uimm16 (ins->inst_imm)) {
3361 ppc_cmpli (code, 0, L, ins->sreg1, (ins->inst_imm & 0xffff));
3363 g_assert_not_reached ();
3366 if (ppc_is_imm16 (ins->inst_imm)) {
3367 ppc_cmpi (code, 0, L, ins->sreg1, (ins->inst_imm & 0xffff));
3369 g_assert_not_reached ();
3375 * gdb does not like encountering a trap in the debugged code. So
3376 * instead of emitting a trap, we emit a call a C function and place a
3380 ppc_mr (code, ppc_r3, ins->sreg1);
3381 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3382 (gpointer)"mono_break");
3383 if ((FORCE_INDIR_CALL || cfg->method->dynamic) && !cfg->compile_aot) {
3384 ppc_load_func (code, ppc_r0, 0);
3385 ppc_mtlr (code, ppc_r0);
3393 ppc_addco (code, ins->dreg, ins->sreg1, ins->sreg2);
3396 CASE_PPC64 (OP_LADD)
3397 ppc_add (code, ins->dreg, ins->sreg1, ins->sreg2);
3401 ppc_adde (code, ins->dreg, ins->sreg1, ins->sreg2);
3404 if (ppc_is_imm16 (ins->inst_imm)) {
3405 ppc_addic (code, ins->dreg, ins->sreg1, ins->inst_imm);
3407 g_assert_not_reached ();
3412 CASE_PPC64 (OP_LADD_IMM)
3413 if (ppc_is_imm16 (ins->inst_imm)) {
3414 ppc_addi (code, ins->dreg, ins->sreg1, ins->inst_imm);
3416 g_assert_not_reached ();
3420 /* check XER [0-3] (SO, OV, CA): we can't use mcrxr
3422 ppc_addo (code, ins->dreg, ins->sreg1, ins->sreg2);
3423 ppc_mfspr (code, ppc_r0, ppc_xer);
3424 ppc_andisd (code, ppc_r0, ppc_r0, (1<<14));
3425 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, "OverflowException");
3427 case OP_IADD_OVF_UN:
3428 /* check XER [0-3] (SO, OV, CA): we can't use mcrxr
3430 ppc_addco (code, ins->dreg, ins->sreg1, ins->sreg2);
3431 ppc_mfspr (code, ppc_r0, ppc_xer);
3432 ppc_andisd (code, ppc_r0, ppc_r0, (1<<13));
3433 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, "OverflowException");
3436 CASE_PPC64 (OP_LSUB_OVF)
3437 /* check XER [0-3] (SO, OV, CA): we can't use mcrxr
3439 ppc_subfo (code, ins->dreg, ins->sreg2, ins->sreg1);
3440 ppc_mfspr (code, ppc_r0, ppc_xer);
3441 ppc_andisd (code, ppc_r0, ppc_r0, (1<<14));
3442 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, "OverflowException");
3444 case OP_ISUB_OVF_UN:
3445 CASE_PPC64 (OP_LSUB_OVF_UN)
3446 /* check XER [0-3] (SO, OV, CA): we can't use mcrxr
3448 ppc_subfc (code, ins->dreg, ins->sreg2, ins->sreg1);
3449 ppc_mfspr (code, ppc_r0, ppc_xer);
3450 ppc_andisd (code, ppc_r0, ppc_r0, (1<<13));
3451 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_TRUE, PPC_BR_EQ, "OverflowException");
3453 case OP_ADD_OVF_CARRY:
3454 /* check XER [0-3] (SO, OV, CA): we can't use mcrxr
3456 ppc_addeo (code, ins->dreg, ins->sreg1, ins->sreg2);
3457 ppc_mfspr (code, ppc_r0, ppc_xer);
3458 ppc_andisd (code, ppc_r0, ppc_r0, (1<<14));
3459 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, "OverflowException");
3461 case OP_ADD_OVF_UN_CARRY:
3462 /* check XER [0-3] (SO, OV, CA): we can't use mcrxr
3464 ppc_addeo (code, ins->dreg, ins->sreg1, ins->sreg2);
3465 ppc_mfspr (code, ppc_r0, ppc_xer);
3466 ppc_andisd (code, ppc_r0, ppc_r0, (1<<13));
3467 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, "OverflowException");
3469 case OP_SUB_OVF_CARRY:
3470 /* check XER [0-3] (SO, OV, CA): we can't use mcrxr
3472 ppc_subfeo (code, ins->dreg, ins->sreg2, ins->sreg1);
3473 ppc_mfspr (code, ppc_r0, ppc_xer);
3474 ppc_andisd (code, ppc_r0, ppc_r0, (1<<14));
3475 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, "OverflowException");
3477 case OP_SUB_OVF_UN_CARRY:
3478 /* check XER [0-3] (SO, OV, CA): we can't use mcrxr
3480 ppc_subfeo (code, ins->dreg, ins->sreg2, ins->sreg1);
3481 ppc_mfspr (code, ppc_r0, ppc_xer);
3482 ppc_andisd (code, ppc_r0, ppc_r0, (1<<13));
3483 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_TRUE, PPC_BR_EQ, "OverflowException");
3487 ppc_subfco (code, ins->dreg, ins->sreg2, ins->sreg1);
3490 CASE_PPC64 (OP_LSUB)
3491 ppc_subf (code, ins->dreg, ins->sreg2, ins->sreg1);
3495 ppc_subfe (code, ins->dreg, ins->sreg2, ins->sreg1);
3499 CASE_PPC64 (OP_LSUB_IMM)
3500 // we add the negated value
3501 if (ppc_is_imm16 (-ins->inst_imm))
3502 ppc_addi (code, ins->dreg, ins->sreg1, -ins->inst_imm);
3504 g_assert_not_reached ();
3508 g_assert (ppc_is_imm16 (ins->inst_imm));
3509 ppc_subfic (code, ins->dreg, ins->sreg1, ins->inst_imm);
3512 ppc_subfze (code, ins->dreg, ins->sreg1);
3515 CASE_PPC64 (OP_LAND)
3516 /* FIXME: the ppc macros as inconsistent here: put dest as the first arg! */
3517 ppc_and (code, ins->sreg1, ins->dreg, ins->sreg2);
3521 CASE_PPC64 (OP_LAND_IMM)
3522 if (!(ins->inst_imm & 0xffff0000)) {
3523 ppc_andid (code, ins->sreg1, ins->dreg, ins->inst_imm);
3524 } else if (!(ins->inst_imm & 0xffff)) {
3525 ppc_andisd (code, ins->sreg1, ins->dreg, ((guint32)ins->inst_imm >> 16));
3527 g_assert_not_reached ();
3531 CASE_PPC64 (OP_LDIV) {
3532 guint8 *divisor_is_m1;
3533 /* XER format: SO, OV, CA, reserved [21 bits], count [8 bits]
3535 ppc_compare_reg_imm (code, 0, ins->sreg2, -1);
3536 divisor_is_m1 = code;
3537 ppc_bc (code, PPC_BR_FALSE | PPC_BR_LIKELY, PPC_BR_EQ, 0);
3538 ppc_lis (code, ppc_r0, 0x8000);
3539 #ifdef __mono_ppc64__
3540 if (ins->opcode == OP_LDIV)
3541 ppc_sldi (code, ppc_r0, ppc_r0, 32);
3543 ppc_compare (code, 0, ins->sreg1, ppc_r0);
3544 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_TRUE, PPC_BR_EQ, "OverflowException");
3545 ppc_patch (divisor_is_m1, code);
3546 /* XER format: SO, OV, CA, reserved [21 bits], count [8 bits]
3548 if (ins->opcode == OP_IDIV)
3549 ppc_divwod (code, ins->dreg, ins->sreg1, ins->sreg2);
3550 #ifdef __mono_ppc64__
3552 ppc_divdod (code, ins->dreg, ins->sreg1, ins->sreg2);
3554 ppc_mfspr (code, ppc_r0, ppc_xer);
3555 ppc_andisd (code, ppc_r0, ppc_r0, (1<<14));
3556 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, "DivideByZeroException");
3560 CASE_PPC64 (OP_LDIV_UN)
3561 if (ins->opcode == OP_IDIV_UN)
3562 ppc_divwuod (code, ins->dreg, ins->sreg1, ins->sreg2);
3563 #ifdef __mono_ppc64__
3565 ppc_divduod (code, ins->dreg, ins->sreg1, ins->sreg2);
3567 ppc_mfspr (code, ppc_r0, ppc_xer);
3568 ppc_andisd (code, ppc_r0, ppc_r0, (1<<14));
3569 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, "DivideByZeroException");
3575 g_assert_not_reached ();
3578 ppc_or (code, ins->dreg, ins->sreg1, ins->sreg2);
3582 CASE_PPC64 (OP_LOR_IMM)
3583 if (!(ins->inst_imm & 0xffff0000)) {
3584 ppc_ori (code, ins->sreg1, ins->dreg, ins->inst_imm);
3585 } else if (!(ins->inst_imm & 0xffff)) {
3586 ppc_oris (code, ins->dreg, ins->sreg1, ((guint32)(ins->inst_imm) >> 16));
3588 g_assert_not_reached ();
3592 CASE_PPC64 (OP_LXOR)
3593 ppc_xor (code, ins->dreg, ins->sreg1, ins->sreg2);
3597 CASE_PPC64 (OP_LXOR_IMM)
3598 if (!(ins->inst_imm & 0xffff0000)) {
3599 ppc_xori (code, ins->sreg1, ins->dreg, ins->inst_imm);
3600 } else if (!(ins->inst_imm & 0xffff)) {
3601 ppc_xoris (code, ins->sreg1, ins->dreg, ((guint32)(ins->inst_imm) >> 16));
3603 g_assert_not_reached ();
3607 CASE_PPC64 (OP_LSHL)
3608 ppc_shift_left (code, ins->dreg, ins->sreg1, ins->sreg2);
3612 CASE_PPC64 (OP_LSHL_IMM)
3613 ppc_shift_left_imm (code, ins->dreg, ins->sreg1, MASK_SHIFT_IMM (ins->inst_imm));
3616 ppc_sraw (code, ins->dreg, ins->sreg1, ins->sreg2);
3619 ppc_shift_right_arith_imm (code, ins->dreg, ins->sreg1, MASK_SHIFT_IMM (ins->inst_imm));
3622 if (MASK_SHIFT_IMM (ins->inst_imm))
3623 ppc_shift_right_imm (code, ins->dreg, ins->sreg1, MASK_SHIFT_IMM (ins->inst_imm));
3625 ppc_mr (code, ins->dreg, ins->sreg1);
3628 ppc_srw (code, ins->dreg, ins->sreg1, ins->sreg2);
3631 CASE_PPC64 (OP_LNOT)
3632 ppc_not (code, ins->dreg, ins->sreg1);
3635 CASE_PPC64 (OP_LNEG)
3636 ppc_neg (code, ins->dreg, ins->sreg1);
3639 CASE_PPC64 (OP_LMUL)
3640 ppc_multiply (code, ins->dreg, ins->sreg1, ins->sreg2);
3644 CASE_PPC64 (OP_LMUL_IMM)
3645 if (ppc_is_imm16 (ins->inst_imm)) {
3646 ppc_mulli (code, ins->dreg, ins->sreg1, ins->inst_imm);
3648 g_assert_not_reached ();
3652 CASE_PPC64 (OP_LMUL_OVF)
3653 /* we annot use mcrxr, since it's not implemented on some processors
3654 * XER format: SO, OV, CA, reserved [21 bits], count [8 bits]
3656 if (ins->opcode == OP_IMUL_OVF)
3657 ppc_mullwo (code, ins->dreg, ins->sreg1, ins->sreg2);
3658 #ifdef __mono_ppc64__
3660 ppc_mulldo (code, ins->dreg, ins->sreg1, ins->sreg2);
3662 ppc_mfspr (code, ppc_r0, ppc_xer);
3663 ppc_andisd (code, ppc_r0, ppc_r0, (1<<14));
3664 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, "OverflowException");
3666 case OP_IMUL_OVF_UN:
3667 CASE_PPC64 (OP_LMUL_OVF_UN)
3668 /* we first multiply to get the high word and compare to 0
3669 * to set the flags, then the result is discarded and then
3670 * we multiply to get the lower * bits result
3672 if (ins->opcode == OP_IMUL_OVF_UN)
3673 ppc_mulhwu (code, ppc_r0, ins->sreg1, ins->sreg2);
3674 #ifdef __mono_ppc64__
3676 ppc_mulhdu (code, ppc_r0, ins->sreg1, ins->sreg2);
3678 ppc_cmpi (code, 0, 0, ppc_r0, 0);
3679 EMIT_COND_SYSTEM_EXCEPTION (CEE_BNE_UN - CEE_BEQ, "OverflowException");
3680 ppc_multiply (code, ins->dreg, ins->sreg1, ins->sreg2);
3683 ppc_load (code, ins->dreg, ins->inst_c0);
3686 ppc_load (code, ins->dreg, ins->inst_l);
3689 case OP_LOAD_GOTADDR:
3690 /* The PLT implementation depends on this */
3691 g_assert (ins->dreg == ppc_r30);
3693 code = mono_arch_emit_load_got_addr (cfg->native_code, code, cfg, NULL);
3696 // FIXME: Fix max instruction length
3697 mono_add_patch_info (cfg, offset, (MonoJumpInfoType)ins->inst_right->inst_i1, ins->inst_right->inst_p0);
3698 /* arch_emit_got_access () patches this */
3699 ppc_load32 (code, ppc_r0, 0);
3700 ppc_ldptr_indexed (code, ins->dreg, ins->inst_basereg, ppc_r0);
3703 mono_add_patch_info (cfg, offset, (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3704 ppc_load_sequence (code, ins->dreg, 0);
3706 CASE_PPC32 (OP_ICONV_TO_I4)
3707 CASE_PPC32 (OP_ICONV_TO_U4)
3709 ppc_mr (code, ins->dreg, ins->sreg1);
3712 int saved = ins->sreg1;
3713 if (ins->sreg1 == ppc_r3) {
3714 ppc_mr (code, ppc_r0, ins->sreg1);
3717 if (ins->sreg2 != ppc_r3)
3718 ppc_mr (code, ppc_r3, ins->sreg2);
3719 if (saved != ppc_r4)
3720 ppc_mr (code, ppc_r4, saved);
3724 ppc_fmr (code, ins->dreg, ins->sreg1);
3726 case OP_FCONV_TO_R4:
3727 ppc_frsp (code, ins->dreg, ins->sreg1);
3731 MonoCallInst *call = (MonoCallInst*)ins;
3734 * Keep in sync with mono_arch_emit_epilog
3736 g_assert (!cfg->method->save_lmf);
3738 * Note: we can use ppc_r12 here because it is dead anyway:
3739 * we're leaving the method.
3741 if (1 || cfg->flags & MONO_CFG_HAS_CALLS) {
3742 long ret_offset = cfg->stack_usage + PPC_RET_ADDR_OFFSET;
3743 if (ppc_is_imm16 (ret_offset)) {
3744 ppc_ldptr (code, ppc_r0, ret_offset, cfg->frame_reg);
3746 ppc_load (code, ppc_r12, ret_offset);
3747 ppc_ldptr_indexed (code, ppc_r0, cfg->frame_reg, ppc_r12);
3749 ppc_mtlr (code, ppc_r0);
3752 if (ppc_is_imm16 (cfg->stack_usage)) {
3753 ppc_addi (code, ppc_r12, cfg->frame_reg, cfg->stack_usage);
3755 /* cfg->stack_usage is an int, so we can use
3756 * an addis/addi sequence here even in 64-bit. */
3757 ppc_addis (code, ppc_r12, cfg->frame_reg, ppc_ha(cfg->stack_usage));
3758 ppc_addi (code, ppc_r12, ppc_r12, cfg->stack_usage);
3760 if (!cfg->method->save_lmf) {
3762 for (i = 31; i >= 13; --i) {
3763 if (cfg->used_int_regs & (1 << i)) {
3764 pos += sizeof (gpointer);
3765 ppc_ldptr (code, i, -pos, ppc_r12);
3769 /* FIXME restore from MonoLMF: though this can't happen yet */
3772 /* Copy arguments on the stack to our argument area */
3773 if (call->stack_usage) {
3774 code = emit_memcpy (code, call->stack_usage, ppc_r12, PPC_STACK_PARAM_OFFSET, ppc_sp, PPC_STACK_PARAM_OFFSET);
3775 /* r12 was clobbered */
3776 g_assert (cfg->frame_reg == ppc_sp);
3777 if (ppc_is_imm16 (cfg->stack_usage)) {
3778 ppc_addi (code, ppc_r12, cfg->frame_reg, cfg->stack_usage);
3780 /* cfg->stack_usage is an int, so we can use
3781 * an addis/addi sequence here even in 64-bit. */
3782 ppc_addis (code, ppc_r12, cfg->frame_reg, ppc_ha(cfg->stack_usage));
3783 ppc_addi (code, ppc_r12, ppc_r12, cfg->stack_usage);
3787 ppc_mr (code, ppc_sp, ppc_r12);
3788 mono_add_patch_info (cfg, (guint8*) code - cfg->native_code, MONO_PATCH_INFO_METHOD_JUMP, call->method);
3789 if (cfg->compile_aot) {
3790 /* arch_emit_got_access () patches this */
3791 ppc_load32 (code, ppc_r0, 0);
3792 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
3793 ppc_ldptr_indexed (code, ppc_r12, ppc_r30, ppc_r0);
3794 ppc_ldptr (code, ppc_r0, 0, ppc_r12);
3796 ppc_ldptr_indexed (code, ppc_r0, ppc_r30, ppc_r0);
3798 ppc_mtctr (code, ppc_r0);
3799 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
3806 /* ensure ins->sreg1 is not NULL */
3807 ppc_ldptr (code, ppc_r0, 0, ins->sreg1);
3810 long cookie_offset = cfg->sig_cookie + cfg->stack_usage;
3811 if (ppc_is_imm16 (cookie_offset)) {
3812 ppc_addi (code, ppc_r0, cfg->frame_reg, cookie_offset);
3814 ppc_load (code, ppc_r0, cookie_offset);
3815 ppc_add (code, ppc_r0, cfg->frame_reg, ppc_r0);
3817 ppc_stptr (code, ppc_r0, 0, ins->sreg1);
3826 call = (MonoCallInst*)ins;
3827 if (ins->flags & MONO_INST_HAS_METHOD)
3828 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
3830 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
3831 if ((FORCE_INDIR_CALL || cfg->method->dynamic) && !cfg->compile_aot) {
3832 ppc_load_func (code, ppc_r0, 0);
3833 ppc_mtlr (code, ppc_r0);
3838 /* FIXME: this should be handled somewhere else in the new jit */
3839 code = emit_move_return_value (cfg, ins, code);
3845 case OP_VOIDCALL_REG:
3847 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
3848 ppc_ldptr (code, ppc_r0, 0, ins->sreg1);
3849 /* FIXME: if we know that this is a method, we
3850 can omit this load */
3851 ppc_ldptr (code, ppc_r2, 8, ins->sreg1);
3852 ppc_mtlr (code, ppc_r0);
3854 ppc_mtlr (code, ins->sreg1);
3857 /* FIXME: this should be handled somewhere else in the new jit */
3858 code = emit_move_return_value (cfg, ins, code);
3860 case OP_FCALL_MEMBASE:
3861 case OP_LCALL_MEMBASE:
3862 case OP_VCALL_MEMBASE:
3863 case OP_VCALL2_MEMBASE:
3864 case OP_VOIDCALL_MEMBASE:
3865 case OP_CALL_MEMBASE:
3866 if (cfg->compile_aot && ins->sreg1 == ppc_r12) {
3867 /* The trampolines clobber this */
3868 ppc_mr (code, ppc_r29, ins->sreg1);
3869 ppc_ldptr (code, ppc_r0, ins->inst_offset, ppc_r29);
3871 ppc_ldptr (code, ppc_r0, ins->inst_offset, ins->sreg1);
3873 ppc_mtlr (code, ppc_r0);
3875 /* FIXME: this should be handled somewhere else in the new jit */
3876 code = emit_move_return_value (cfg, ins, code);
3879 guint8 * zero_loop_jump, * zero_loop_start;
3880 /* keep alignment */
3881 int alloca_waste = PPC_STACK_PARAM_OFFSET + cfg->param_area + 31;
3882 int area_offset = alloca_waste;
3884 ppc_addi (code, ppc_r12, ins->sreg1, alloca_waste + 31);
3885 /* FIXME: should be calculated from MONO_ARCH_FRAME_ALIGNMENT */
3886 ppc_clear_right_imm (code, ppc_r12, ppc_r12, 4);
3887 /* use ctr to store the number of words to 0 if needed */
3888 if (ins->flags & MONO_INST_INIT) {
3889 /* we zero 4 bytes at a time:
3890 * we add 7 instead of 3 so that we set the counter to
3891 * at least 1, otherwise the bdnz instruction will make
3892 * it negative and iterate billions of times.
3894 ppc_addi (code, ppc_r0, ins->sreg1, 7);
3895 ppc_shift_right_arith_imm (code, ppc_r0, ppc_r0, 2);
3896 ppc_mtctr (code, ppc_r0);
3898 ppc_ldptr (code, ppc_r0, 0, ppc_sp);
3899 ppc_neg (code, ppc_r12, ppc_r12);
3900 ppc_stptr_update_indexed (code, ppc_r0, ppc_sp, ppc_r12);
3902 /* FIXME: make this loop work in 8 byte
3903 increments on PPC64 */
3904 if (ins->flags & MONO_INST_INIT) {
3905 /* adjust the dest reg by -4 so we can use stwu */
3906 /* we actually adjust -8 because we let the loop
3909 ppc_addi (code, ins->dreg, ppc_sp, (area_offset - 8));
3910 ppc_li (code, ppc_r12, 0);
3911 zero_loop_start = code;
3912 ppc_stwu (code, ppc_r12, 4, ins->dreg);
3913 zero_loop_jump = code;
3914 ppc_bc (code, PPC_BR_DEC_CTR_NONZERO, 0, 0);
3915 ppc_patch (zero_loop_jump, zero_loop_start);
3917 ppc_addi (code, ins->dreg, ppc_sp, area_offset);
3922 ppc_mr (code, ppc_r3, ins->sreg1);
3923 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3924 (gpointer)"mono_arch_throw_exception");
3925 if ((FORCE_INDIR_CALL || cfg->method->dynamic) && !cfg->compile_aot) {
3926 ppc_load_func (code, ppc_r0, 0);
3927 ppc_mtlr (code, ppc_r0);
3936 ppc_mr (code, ppc_r3, ins->sreg1);
3937 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3938 (gpointer)"mono_arch_rethrow_exception");
3939 if ((FORCE_INDIR_CALL || cfg->method->dynamic) && !cfg->compile_aot) {
3940 ppc_load_func (code, ppc_r0, 0);
3941 ppc_mtlr (code, ppc_r0);
3948 case OP_START_HANDLER: {
3949 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3950 g_assert (spvar->inst_basereg != ppc_sp);
3951 code = emit_reserve_param_area (cfg, code);
3952 ppc_mflr (code, ppc_r0);
3953 if (ppc_is_imm16 (spvar->inst_offset)) {
3954 ppc_stptr (code, ppc_r0, spvar->inst_offset, spvar->inst_basereg);
3956 ppc_load (code, ppc_r12, spvar->inst_offset);
3957 ppc_stptr_indexed (code, ppc_r0, ppc_r12, spvar->inst_basereg);
3961 case OP_ENDFILTER: {
3962 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3963 g_assert (spvar->inst_basereg != ppc_sp);
3964 code = emit_unreserve_param_area (cfg, code);
3965 if (ins->sreg1 != ppc_r3)
3966 ppc_mr (code, ppc_r3, ins->sreg1);
3967 if (ppc_is_imm16 (spvar->inst_offset)) {
3968 ppc_ldptr (code, ppc_r0, spvar->inst_offset, spvar->inst_basereg);
3970 ppc_load (code, ppc_r12, spvar->inst_offset);
3971 ppc_ldptr_indexed (code, ppc_r0, spvar->inst_basereg, ppc_r12);
3973 ppc_mtlr (code, ppc_r0);
3977 case OP_ENDFINALLY: {
3978 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3979 g_assert (spvar->inst_basereg != ppc_sp);
3980 code = emit_unreserve_param_area (cfg, code);
3981 ppc_ldptr (code, ppc_r0, spvar->inst_offset, spvar->inst_basereg);
3982 ppc_mtlr (code, ppc_r0);
3986 case OP_CALL_HANDLER:
3987 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_BB, ins->inst_target_bb);
3989 mono_cfg_add_try_hole (cfg, ins->inst_eh_block, code, bb);
3992 ins->inst_c0 = code - cfg->native_code;
3995 /*if (ins->inst_target_bb->native_offset) {
3997 //x86_jump_code (code, cfg->native_code + ins->inst_target_bb->native_offset);
3999 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_BB, ins->inst_target_bb);
4004 ppc_mtctr (code, ins->sreg1);
4005 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
4009 CASE_PPC64 (OP_LCEQ)
4010 ppc_li (code, ins->dreg, 0);
4011 ppc_bc (code, PPC_BR_FALSE, PPC_BR_EQ, 2);
4012 ppc_li (code, ins->dreg, 1);
4018 CASE_PPC64 (OP_LCLT)
4019 CASE_PPC64 (OP_LCLT_UN)
4020 ppc_li (code, ins->dreg, 1);
4021 ppc_bc (code, PPC_BR_TRUE, PPC_BR_LT, 2);
4022 ppc_li (code, ins->dreg, 0);
4028 CASE_PPC64 (OP_LCGT)
4029 CASE_PPC64 (OP_LCGT_UN)
4030 ppc_li (code, ins->dreg, 1);
4031 ppc_bc (code, PPC_BR_TRUE, PPC_BR_GT, 2);
4032 ppc_li (code, ins->dreg, 0);
4034 case OP_COND_EXC_EQ:
4035 case OP_COND_EXC_NE_UN:
4036 case OP_COND_EXC_LT:
4037 case OP_COND_EXC_LT_UN:
4038 case OP_COND_EXC_GT:
4039 case OP_COND_EXC_GT_UN:
4040 case OP_COND_EXC_GE:
4041 case OP_COND_EXC_GE_UN:
4042 case OP_COND_EXC_LE:
4043 case OP_COND_EXC_LE_UN:
4044 EMIT_COND_SYSTEM_EXCEPTION (ins->opcode - OP_COND_EXC_EQ, ins->inst_p1);
4046 case OP_COND_EXC_IEQ:
4047 case OP_COND_EXC_INE_UN:
4048 case OP_COND_EXC_ILT:
4049 case OP_COND_EXC_ILT_UN:
4050 case OP_COND_EXC_IGT:
4051 case OP_COND_EXC_IGT_UN:
4052 case OP_COND_EXC_IGE:
4053 case OP_COND_EXC_IGE_UN:
4054 case OP_COND_EXC_ILE:
4055 case OP_COND_EXC_ILE_UN:
4056 EMIT_COND_SYSTEM_EXCEPTION (ins->opcode - OP_COND_EXC_IEQ, ins->inst_p1);
4068 EMIT_COND_BRANCH (ins, ins->opcode - OP_IBEQ);
4071 /* floating point opcodes */
4073 g_assert (cfg->compile_aot);
4075 /* FIXME: Optimize this */
4077 ppc_mflr (code, ppc_r12);
4079 *(double*)code = *(double*)ins->inst_p0;
4081 ppc_lfd (code, ins->dreg, 8, ppc_r12);
4084 g_assert_not_reached ();
4086 case OP_STORER8_MEMBASE_REG:
4087 if (ppc_is_imm16 (ins->inst_offset)) {
4088 ppc_stfd (code, ins->sreg1, ins->inst_offset, ins->inst_destbasereg);
4090 if (ppc_is_imm32 (ins->inst_offset)) {
4091 ppc_addis (code, ppc_r11, ins->inst_destbasereg, ppc_ha(ins->inst_offset));
4092 ppc_stfd (code, ins->sreg1, ins->inst_offset, ppc_r11);
4094 ppc_load (code, ppc_r0, ins->inst_offset);
4095 ppc_stfdx (code, ins->sreg1, ins->inst_destbasereg, ppc_r0);
4099 case OP_LOADR8_MEMBASE:
4100 if (ppc_is_imm16 (ins->inst_offset)) {
4101 ppc_lfd (code, ins->dreg, ins->inst_offset, ins->inst_basereg);
4103 if (ppc_is_imm32 (ins->inst_offset)) {
4104 ppc_addis (code, ppc_r11, ins->inst_destbasereg, ppc_ha(ins->inst_offset));
4105 ppc_lfd (code, ins->dreg, ins->inst_offset, ppc_r11);
4107 ppc_load (code, ppc_r0, ins->inst_offset);
4108 ppc_lfdx (code, ins->dreg, ins->inst_destbasereg, ppc_r0);
4112 case OP_STORER4_MEMBASE_REG:
4113 ppc_frsp (code, ins->sreg1, ins->sreg1);
4114 if (ppc_is_imm16 (ins->inst_offset)) {
4115 ppc_stfs (code, ins->sreg1, ins->inst_offset, ins->inst_destbasereg);
4117 if (ppc_is_imm32 (ins->inst_offset)) {
4118 ppc_addis (code, ppc_r11, ins->inst_destbasereg, ppc_ha(ins->inst_offset));
4119 ppc_stfs (code, ins->sreg1, ins->inst_offset, ppc_r11);
4121 ppc_load (code, ppc_r0, ins->inst_offset);
4122 ppc_stfsx (code, ins->sreg1, ins->inst_destbasereg, ppc_r0);
4126 case OP_LOADR4_MEMBASE:
4127 if (ppc_is_imm16 (ins->inst_offset)) {
4128 ppc_lfs (code, ins->dreg, ins->inst_offset, ins->inst_basereg);
4130 if (ppc_is_imm32 (ins->inst_offset)) {
4131 ppc_addis (code, ppc_r11, ins->inst_destbasereg, ppc_ha(ins->inst_offset));
4132 ppc_lfs (code, ins->dreg, ins->inst_offset, ppc_r11);
4134 ppc_load (code, ppc_r0, ins->inst_offset);
4135 ppc_lfsx (code, ins->dreg, ins->inst_destbasereg, ppc_r0);
4139 case OP_LOADR4_MEMINDEX:
4140 ppc_lfsx (code, ins->dreg, ins->inst_basereg, ins->sreg2);
4142 case OP_LOADR8_MEMINDEX:
4143 ppc_lfdx (code, ins->dreg, ins->inst_basereg, ins->sreg2);
4145 case OP_STORER4_MEMINDEX:
4146 ppc_frsp (code, ins->sreg1, ins->sreg1);
4147 ppc_stfsx (code, ins->sreg1, ins->inst_destbasereg, ins->sreg2);
4149 case OP_STORER8_MEMINDEX:
4150 ppc_stfdx (code, ins->sreg1, ins->inst_destbasereg, ins->sreg2);
4153 case CEE_CONV_R4: /* FIXME: change precision */
4155 g_assert_not_reached ();
4156 case OP_FCONV_TO_I1:
4157 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4159 case OP_FCONV_TO_U1:
4160 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4162 case OP_FCONV_TO_I2:
4163 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4165 case OP_FCONV_TO_U2:
4166 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4168 case OP_FCONV_TO_I4:
4170 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4172 case OP_FCONV_TO_U4:
4174 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4176 case OP_LCONV_TO_R_UN:
4177 g_assert_not_reached ();
4178 /* Implemented as helper calls */
4180 case OP_LCONV_TO_OVF_I4_2:
4181 case OP_LCONV_TO_OVF_I: {
4182 #ifdef __mono_ppc64__
4185 guint8 *negative_branch, *msword_positive_branch, *msword_negative_branch, *ovf_ex_target;
4186 // Check if its negative
4187 ppc_cmpi (code, 0, 0, ins->sreg1, 0);
4188 negative_branch = code;
4189 ppc_bc (code, PPC_BR_TRUE, PPC_BR_LT, 0);
4190 // Its positive msword == 0
4191 ppc_cmpi (code, 0, 0, ins->sreg2, 0);
4192 msword_positive_branch = code;
4193 ppc_bc (code, PPC_BR_TRUE, PPC_BR_EQ, 0);
4195 ovf_ex_target = code;
4196 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_ALWAYS, 0, "OverflowException");
4198 ppc_patch (negative_branch, code);
4199 ppc_cmpi (code, 0, 0, ins->sreg2, -1);
4200 msword_negative_branch = code;
4201 ppc_bc (code, PPC_BR_FALSE, PPC_BR_EQ, 0);
4202 ppc_patch (msword_negative_branch, ovf_ex_target);
4204 ppc_patch (msword_positive_branch, code);
4205 if (ins->dreg != ins->sreg1)
4206 ppc_mr (code, ins->dreg, ins->sreg1);
4211 ppc_fsqrtd (code, ins->dreg, ins->sreg1);
4214 ppc_fadd (code, ins->dreg, ins->sreg1, ins->sreg2);
4217 ppc_fsub (code, ins->dreg, ins->sreg1, ins->sreg2);
4220 ppc_fmul (code, ins->dreg, ins->sreg1, ins->sreg2);
4223 ppc_fdiv (code, ins->dreg, ins->sreg1, ins->sreg2);
4226 ppc_fneg (code, ins->dreg, ins->sreg1);
4230 g_assert_not_reached ();
4233 ppc_fcmpu (code, 0, ins->sreg1, ins->sreg2);
4236 ppc_fcmpo (code, 0, ins->sreg1, ins->sreg2);
4237 ppc_li (code, ins->dreg, 0);
4238 ppc_bc (code, PPC_BR_FALSE, PPC_BR_EQ, 2);
4239 ppc_li (code, ins->dreg, 1);
4242 ppc_fcmpo (code, 0, ins->sreg1, ins->sreg2);
4243 ppc_li (code, ins->dreg, 1);
4244 ppc_bc (code, PPC_BR_TRUE, PPC_BR_LT, 2);
4245 ppc_li (code, ins->dreg, 0);
4248 ppc_fcmpu (code, 0, ins->sreg1, ins->sreg2);
4249 ppc_li (code, ins->dreg, 1);
4250 ppc_bc (code, PPC_BR_TRUE, PPC_BR_SO, 3);
4251 ppc_bc (code, PPC_BR_TRUE, PPC_BR_LT, 2);
4252 ppc_li (code, ins->dreg, 0);
4255 ppc_fcmpo (code, 0, ins->sreg1, ins->sreg2);
4256 ppc_li (code, ins->dreg, 1);
4257 ppc_bc (code, PPC_BR_TRUE, PPC_BR_GT, 2);
4258 ppc_li (code, ins->dreg, 0);
4261 ppc_fcmpu (code, 0, ins->sreg1, ins->sreg2);
4262 ppc_li (code, ins->dreg, 1);
4263 ppc_bc (code, PPC_BR_TRUE, PPC_BR_SO, 3);
4264 ppc_bc (code, PPC_BR_TRUE, PPC_BR_GT, 2);
4265 ppc_li (code, ins->dreg, 0);
4268 EMIT_COND_BRANCH (ins, CEE_BEQ - CEE_BEQ);
4271 EMIT_COND_BRANCH (ins, CEE_BNE_UN - CEE_BEQ);
4274 ppc_bc (code, PPC_BR_TRUE, PPC_BR_SO, 2);
4275 EMIT_COND_BRANCH (ins, CEE_BLT - CEE_BEQ);
4278 EMIT_COND_BRANCH_FLAGS (ins, PPC_BR_TRUE, PPC_BR_SO);
4279 EMIT_COND_BRANCH (ins, CEE_BLT_UN - CEE_BEQ);
4282 ppc_bc (code, PPC_BR_TRUE, PPC_BR_SO, 2);
4283 EMIT_COND_BRANCH (ins, CEE_BGT - CEE_BEQ);
4286 EMIT_COND_BRANCH_FLAGS (ins, PPC_BR_TRUE, PPC_BR_SO);
4287 EMIT_COND_BRANCH (ins, CEE_BGT_UN - CEE_BEQ);
4290 ppc_bc (code, PPC_BR_TRUE, PPC_BR_SO, 2);
4291 EMIT_COND_BRANCH (ins, CEE_BGE - CEE_BEQ);
4294 EMIT_COND_BRANCH (ins, CEE_BGE_UN - CEE_BEQ);
4297 ppc_bc (code, PPC_BR_TRUE, PPC_BR_SO, 2);
4298 EMIT_COND_BRANCH (ins, CEE_BLE - CEE_BEQ);
4301 EMIT_COND_BRANCH (ins, CEE_BLE_UN - CEE_BEQ);
4304 g_assert_not_reached ();
4305 case OP_CHECK_FINITE: {
4306 ppc_rlwinm (code, ins->sreg1, ins->sreg1, 0, 1, 31);
4307 ppc_addis (code, ins->sreg1, ins->sreg1, -32752);
4308 ppc_rlwinmd (code, ins->sreg1, ins->sreg1, 1, 31, 31);
4309 EMIT_COND_SYSTEM_EXCEPTION (CEE_BEQ - CEE_BEQ, "ArithmeticException");
4312 mono_add_patch_info (cfg, offset, (MonoJumpInfoType)ins->inst_c1, ins->inst_p0);
4313 #ifdef __mono_ppc64__
4314 ppc_load_sequence (code, ins->dreg, (guint64)0x0f0f0f0f0f0f0f0fLL);
4316 ppc_load_sequence (code, ins->dreg, (gulong)0x0f0f0f0fL);
4321 #ifdef __mono_ppc64__
4322 case OP_ICONV_TO_I4:
4324 ppc_extsw (code, ins->dreg, ins->sreg1);
4326 case OP_ICONV_TO_U4:
4328 ppc_clrldi (code, ins->dreg, ins->sreg1, 32);
4330 case OP_ICONV_TO_R4:
4331 case OP_ICONV_TO_R8:
4332 case OP_LCONV_TO_R4:
4333 case OP_LCONV_TO_R8: {
4335 if (ins->opcode == OP_ICONV_TO_R4 || ins->opcode == OP_ICONV_TO_R8) {
4336 ppc_extsw (code, ppc_r0, ins->sreg1);
4341 if (cpu_hw_caps & PPC_MOVE_FPR_GPR) {
4342 ppc_mffgpr (code, ins->dreg, tmp);
4344 ppc_str (code, tmp, -8, ppc_r1);
4345 ppc_lfd (code, ins->dreg, -8, ppc_r1);
4347 ppc_fcfid (code, ins->dreg, ins->dreg);
4348 if (ins->opcode == OP_ICONV_TO_R4 || ins->opcode == OP_LCONV_TO_R4)
4349 ppc_frsp (code, ins->dreg, ins->dreg);
4353 ppc_srad (code, ins->dreg, ins->sreg1, ins->sreg2);
4356 ppc_srd (code, ins->dreg, ins->sreg1, ins->sreg2);
4359 /* check XER [0-3] (SO, OV, CA): we can't use mcrxr
4361 ppc_mfspr (code, ppc_r0, ppc_xer);
4362 ppc_andisd (code, ppc_r0, ppc_r0, (1 << 13)); /* CA */
4363 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, ins->inst_p1);
4365 case OP_COND_EXC_OV:
4366 ppc_mfspr (code, ppc_r0, ppc_xer);
4367 ppc_andisd (code, ppc_r0, ppc_r0, (1 << 14)); /* OV */
4368 EMIT_COND_SYSTEM_EXCEPTION_FLAGS (PPC_BR_FALSE, PPC_BR_EQ, ins->inst_p1);
4380 EMIT_COND_BRANCH (ins, ins->opcode - OP_LBEQ);
4382 case OP_FCONV_TO_I8:
4383 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 8, TRUE);
4385 case OP_FCONV_TO_U8:
4386 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 8, FALSE);
4388 case OP_STOREI4_MEMBASE_REG:
4389 if (ppc_is_imm16 (ins->inst_offset)) {
4390 ppc_stw (code, ins->sreg1, ins->inst_offset, ins->inst_destbasereg);
4392 ppc_load (code, ppc_r0, ins->inst_offset);
4393 ppc_stwx (code, ins->sreg1, ins->inst_destbasereg, ppc_r0);
4396 case OP_STOREI4_MEMINDEX:
4397 ppc_stwx (code, ins->sreg1, ins->sreg2, ins->inst_destbasereg);
4400 ppc_srawi (code, ins->dreg, ins->sreg1, (ins->inst_imm & 0x1f));
4402 case OP_ISHR_UN_IMM:
4403 if (ins->inst_imm & 0x1f)
4404 ppc_srwi (code, ins->dreg, ins->sreg1, (ins->inst_imm & 0x1f));
4406 ppc_mr (code, ins->dreg, ins->sreg1);
4408 case OP_ATOMIC_ADD_I4:
4409 CASE_PPC64 (OP_ATOMIC_ADD_I8) {
4410 int location = ins->inst_basereg;
4411 int addend = ins->sreg2;
4412 guint8 *loop, *branch;
4413 g_assert (ins->inst_offset == 0);
4417 if (ins->opcode == OP_ATOMIC_ADD_I4)
4418 ppc_lwarx (code, ppc_r0, 0, location);
4419 #ifdef __mono_ppc64__
4421 ppc_ldarx (code, ppc_r0, 0, location);
4424 ppc_add (code, ppc_r0, ppc_r0, addend);
4426 if (ins->opcode == OP_ATOMIC_ADD_I4)
4427 ppc_stwcxd (code, ppc_r0, 0, location);
4428 #ifdef __mono_ppc64__
4430 ppc_stdcxd (code, ppc_r0, 0, location);
4434 ppc_bc (code, PPC_BR_FALSE, PPC_BR_EQ, 0);
4435 ppc_patch (branch, loop);
4438 ppc_mr (code, ins->dreg, ppc_r0);
4442 case OP_ICONV_TO_R4:
4443 case OP_ICONV_TO_R8: {
4444 if (cpu_hw_caps & PPC_ISA_64) {
4445 ppc_srawi(code, ppc_r0, ins->sreg1, 31);
4446 ppc_stw (code, ppc_r0, -8, ppc_r1);
4447 ppc_stw (code, ins->sreg1, -4, ppc_r1);
4448 ppc_lfd (code, ins->dreg, -8, ppc_r1);
4449 ppc_fcfid (code, ins->dreg, ins->dreg);
4450 if (ins->opcode == OP_ICONV_TO_R4)
4451 ppc_frsp (code, ins->dreg, ins->dreg);
4456 case OP_ATOMIC_CAS_I4:
4457 CASE_PPC64 (OP_ATOMIC_CAS_I8) {
4458 int location = ins->sreg1;
4459 int value = ins->sreg2;
4460 int comparand = ins->sreg3;
4461 guint8 *start, *not_equal, *lost_reservation;
4465 if (ins->opcode == OP_ATOMIC_CAS_I4)
4466 ppc_lwarx (code, ppc_r0, 0, location);
4467 #ifdef __mono_ppc64__
4469 ppc_ldarx (code, ppc_r0, 0, location);
4472 ppc_cmp (code, 0, ins->opcode == OP_ATOMIC_CAS_I4 ? 0 : 1, ppc_r0, comparand);
4474 ppc_bc (code, PPC_BR_FALSE, PPC_BR_EQ, 0);
4476 if (ins->opcode == OP_ATOMIC_CAS_I4)
4477 ppc_stwcxd (code, value, 0, location);
4478 #ifdef __mono_ppc64__
4480 ppc_stdcxd (code, value, 0, location);
4483 lost_reservation = code;
4484 ppc_bc (code, PPC_BR_FALSE, PPC_BR_EQ, 0);
4485 ppc_patch (lost_reservation, start);
4486 ppc_patch (not_equal, code);
4489 ppc_mr (code, ins->dreg, ppc_r0);
4494 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4495 g_assert_not_reached ();
4498 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4499 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %ld)",
4500 mono_inst_name (ins->opcode), max_len, (glong)(code - cfg->native_code - offset));
4501 g_assert_not_reached ();
4507 last_offset = offset;
4510 cfg->code_len = code - cfg->native_code;
4512 #endif /* !DISABLE_JIT */
4515 mono_arch_register_lowlevel_calls (void)
4517 /* The signature doesn't matter */
4518 mono_register_jit_icall (mono_ppc_throw_exception, "mono_ppc_throw_exception", mono_create_icall_signature ("void"), TRUE);
4521 #ifdef __mono_ppc64__
4522 #ifdef _LITTLE_ENDIAN
4523 #define patch_load_sequence(ip,val) do {\
4524 guint16 *__load = (guint16*)(ip); \
4525 g_assert (sizeof (val) == sizeof (gsize)); \
4526 __load [0] = (((guint64)(gsize)(val)) >> 48) & 0xffff; \
4527 __load [2] = (((guint64)(gsize)(val)) >> 32) & 0xffff; \
4528 __load [6] = (((guint64)(gsize)(val)) >> 16) & 0xffff; \
4529 __load [8] = ((guint64)(gsize)(val)) & 0xffff; \
4531 #elif defined _BIG_ENDIAN
4532 #define patch_load_sequence(ip,val) do {\
4533 guint16 *__load = (guint16*)(ip); \
4534 g_assert (sizeof (val) == sizeof (gsize)); \
4535 __load [1] = (((guint64)(gsize)(val)) >> 48) & 0xffff; \
4536 __load [3] = (((guint64)(gsize)(val)) >> 32) & 0xffff; \
4537 __load [7] = (((guint64)(gsize)(val)) >> 16) & 0xffff; \
4538 __load [9] = ((guint64)(gsize)(val)) & 0xffff; \
4541 #error huh? No endianess defined by compiler
4544 #define patch_load_sequence(ip,val) do {\
4545 guint16 *__lis_ori = (guint16*)(ip); \
4546 __lis_ori [1] = (((gulong)(val)) >> 16) & 0xffff; \
4547 __lis_ori [3] = ((gulong)(val)) & 0xffff; \
4553 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *ji, MonoCodeManager *dyn_code_mp, gboolean run_cctors)
4555 MonoJumpInfo *patch_info;
4556 gboolean compile_aot = !run_cctors;
4558 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4559 unsigned char *ip = patch_info->ip.i + code;
4560 unsigned char *target;
4561 gboolean is_fd = FALSE;
4563 target = mono_resolve_patch_target (method, domain, code, patch_info, run_cctors);
4566 switch (patch_info->type) {
4567 case MONO_PATCH_INFO_BB:
4568 case MONO_PATCH_INFO_LABEL:
4571 /* No need to patch these */
4576 switch (patch_info->type) {
4577 case MONO_PATCH_INFO_IP:
4578 patch_load_sequence (ip, ip);
4580 case MONO_PATCH_INFO_METHOD_REL:
4581 g_assert_not_reached ();
4582 *((gpointer *)(ip)) = code + patch_info->data.offset;
4584 case MONO_PATCH_INFO_SWITCH: {
4585 gpointer *table = (gpointer *)patch_info->data.table->table;
4588 patch_load_sequence (ip, table);
4590 for (i = 0; i < patch_info->data.table->table_size; i++) {
4591 table [i] = (glong)patch_info->data.table->table [i] + code;
4593 /* we put into the table the absolute address, no need for ppc_patch in this case */
4596 case MONO_PATCH_INFO_METHODCONST:
4597 case MONO_PATCH_INFO_CLASS:
4598 case MONO_PATCH_INFO_IMAGE:
4599 case MONO_PATCH_INFO_FIELD:
4600 case MONO_PATCH_INFO_VTABLE:
4601 case MONO_PATCH_INFO_IID:
4602 case MONO_PATCH_INFO_SFLDA:
4603 case MONO_PATCH_INFO_LDSTR:
4604 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4605 case MONO_PATCH_INFO_LDTOKEN:
4606 /* from OP_AOTCONST : lis + ori */
4607 patch_load_sequence (ip, target);
4609 case MONO_PATCH_INFO_R4:
4610 case MONO_PATCH_INFO_R8:
4611 g_assert_not_reached ();
4612 *((gconstpointer *)(ip + 2)) = patch_info->data.target;
4614 case MONO_PATCH_INFO_EXC_NAME:
4615 g_assert_not_reached ();
4616 *((gconstpointer *)(ip + 1)) = patch_info->data.name;
4618 case MONO_PATCH_INFO_NONE:
4619 case MONO_PATCH_INFO_BB_OVF:
4620 case MONO_PATCH_INFO_EXC_OVF:
4621 /* everything is dealt with at epilog output time */
4623 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4624 case MONO_PATCH_INFO_INTERNAL_METHOD:
4625 case MONO_PATCH_INFO_ABS:
4626 case MONO_PATCH_INFO_CLASS_INIT:
4627 case MONO_PATCH_INFO_RGCTX_FETCH:
4628 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
4635 ppc_patch_full (ip, target, is_fd);
4640 * Emit code to save the registers in used_int_regs or the registers in the MonoLMF
4641 * structure at positive offset pos from register base_reg. pos is guaranteed to fit into
4642 * the instruction offset immediate for all the registers.
4645 save_registers (MonoCompile *cfg, guint8* code, int pos, int base_reg, gboolean save_lmf, guint32 used_int_regs, int cfa_offset)
4649 for (i = 13; i <= 31; i++) {
4650 if (used_int_regs & (1 << i)) {
4651 ppc_str (code, i, pos, base_reg);
4652 mono_emit_unwind_op_offset (cfg, code, i, pos - cfa_offset);
4653 pos += sizeof (mgreg_t);
4657 /* pos is the start of the MonoLMF structure */
4658 int offset = pos + G_STRUCT_OFFSET (MonoLMF, iregs);
4659 for (i = 13; i <= 31; i++) {
4660 ppc_str (code, i, offset, base_reg);
4661 mono_emit_unwind_op_offset (cfg, code, i, offset - cfa_offset);
4662 offset += sizeof (mgreg_t);
4664 offset = pos + G_STRUCT_OFFSET (MonoLMF, fregs);
4665 for (i = 14; i < 32; i++) {
4666 ppc_stfd (code, i, offset, base_reg);
4667 offset += sizeof (gdouble);
4674 * Stack frame layout:
4676 * ------------------- sp
4677 * MonoLMF structure or saved registers
4678 * -------------------
4680 * -------------------
4682 * -------------------
4683 * optional 8 bytes for tracing
4684 * -------------------
4685 * param area size is cfg->param_area
4686 * -------------------
4687 * linkage area size is PPC_STACK_PARAM_OFFSET
4688 * ------------------- sp
4692 mono_arch_emit_prolog (MonoCompile *cfg)
4694 MonoMethod *method = cfg->method;
4696 MonoMethodSignature *sig;
4698 long alloc_size, pos, max_offset, cfa_offset;
4704 int tailcall_struct_index;
4706 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4709 sig = mono_method_signature (method);
4710 cfg->code_size = 512 + sig->param_count * 32;
4711 code = cfg->native_code = g_malloc (cfg->code_size);
4715 /* We currently emit unwind info for aot, but don't use it */
4716 mono_emit_unwind_op_def_cfa (cfg, code, ppc_r1, 0);
4718 if (1 || cfg->flags & MONO_CFG_HAS_CALLS) {
4719 ppc_mflr (code, ppc_r0);
4720 ppc_str (code, ppc_r0, PPC_RET_ADDR_OFFSET, ppc_sp);
4721 mono_emit_unwind_op_offset (cfg, code, ppc_lr, PPC_RET_ADDR_OFFSET);
4724 alloc_size = cfg->stack_offset;
4727 if (!method->save_lmf) {
4728 for (i = 31; i >= 13; --i) {
4729 if (cfg->used_int_regs & (1 << i)) {
4730 pos += sizeof (mgreg_t);
4734 pos += sizeof (MonoLMF);
4738 // align to MONO_ARCH_FRAME_ALIGNMENT bytes
4739 if (alloc_size & (MONO_ARCH_FRAME_ALIGNMENT - 1)) {
4740 alloc_size += MONO_ARCH_FRAME_ALIGNMENT - 1;
4741 alloc_size &= ~(MONO_ARCH_FRAME_ALIGNMENT - 1);
4744 cfg->stack_usage = alloc_size;
4745 g_assert ((alloc_size & (MONO_ARCH_FRAME_ALIGNMENT-1)) == 0);
4747 if (ppc_is_imm16 (-alloc_size)) {
4748 ppc_str_update (code, ppc_sp, -alloc_size, ppc_sp);
4749 cfa_offset = alloc_size;
4750 mono_emit_unwind_op_def_cfa_offset (cfg, code, alloc_size);
4751 code = save_registers (cfg, code, alloc_size - pos, ppc_sp, method->save_lmf, cfg->used_int_regs, cfa_offset);
4754 ppc_addi (code, ppc_r12, ppc_sp, -pos);
4755 ppc_load (code, ppc_r0, -alloc_size);
4756 ppc_str_update_indexed (code, ppc_sp, ppc_sp, ppc_r0);
4757 cfa_offset = alloc_size;
4758 mono_emit_unwind_op_def_cfa_offset (cfg, code, alloc_size);
4759 code = save_registers (cfg, code, 0, ppc_r12, method->save_lmf, cfg->used_int_regs, cfa_offset);
4762 if (cfg->frame_reg != ppc_sp) {
4763 ppc_mr (code, cfg->frame_reg, ppc_sp);
4764 mono_emit_unwind_op_def_cfa_reg (cfg, code, cfg->frame_reg);
4767 /* store runtime generic context */
4768 if (cfg->rgctx_var) {
4769 g_assert (cfg->rgctx_var->opcode == OP_REGOFFSET &&
4770 (cfg->rgctx_var->inst_basereg == ppc_r1 || cfg->rgctx_var->inst_basereg == ppc_r31));
4772 ppc_stptr (code, MONO_ARCH_RGCTX_REG, cfg->rgctx_var->inst_offset, cfg->rgctx_var->inst_basereg);
4775 /* compute max_offset in order to use short forward jumps
4776 * we always do it on ppc because the immediate displacement
4777 * for jumps is too small
4780 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4782 bb->max_offset = max_offset;
4784 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4787 MONO_BB_FOR_EACH_INS (bb, ins)
4788 max_offset += ins_native_length (cfg, ins);
4791 /* load arguments allocated to register from the stack */
4794 cinfo = get_call_info (cfg->generic_sharing_context, sig);
4796 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
4797 ArgInfo *ainfo = &cinfo->ret;
4799 inst = cfg->vret_addr;
4802 if (ppc_is_imm16 (inst->inst_offset)) {
4803 ppc_stptr (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
4805 ppc_load (code, ppc_r12, inst->inst_offset);
4806 ppc_stptr_indexed (code, ainfo->reg, ppc_r12, inst->inst_basereg);
4810 tailcall_struct_index = 0;
4811 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4812 ArgInfo *ainfo = cinfo->args + i;
4813 inst = cfg->args [pos];
4815 if (cfg->verbose_level > 2)
4816 g_print ("Saving argument %d (type: %d)\n", i, ainfo->regtype);
4817 if (inst->opcode == OP_REGVAR) {
4818 if (ainfo->regtype == RegTypeGeneral)
4819 ppc_mr (code, inst->dreg, ainfo->reg);
4820 else if (ainfo->regtype == RegTypeFP)
4821 ppc_fmr (code, inst->dreg, ainfo->reg);
4822 else if (ainfo->regtype == RegTypeBase) {
4823 ppc_ldr (code, ppc_r12, 0, ppc_sp);
4824 ppc_ldptr (code, inst->dreg, ainfo->offset, ppc_r12);
4826 g_assert_not_reached ();
4828 if (cfg->verbose_level > 2)
4829 g_print ("Argument %ld assigned to register %s\n", pos, mono_arch_regname (inst->dreg));
4831 /* the argument should be put on the stack: FIXME handle size != word */
4832 if (ainfo->regtype == RegTypeGeneral) {
4833 switch (ainfo->size) {
4835 if (ppc_is_imm16 (inst->inst_offset)) {
4836 ppc_stb (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
4838 if (ppc_is_imm32 (inst->inst_offset)) {
4839 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4840 ppc_stb (code, ainfo->reg, inst->inst_offset, ppc_r12);
4842 ppc_load (code, ppc_r12, inst->inst_offset);
4843 ppc_stbx (code, ainfo->reg, inst->inst_basereg, ppc_r12);
4848 if (ppc_is_imm16 (inst->inst_offset)) {
4849 ppc_sth (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
4851 if (ppc_is_imm32 (inst->inst_offset)) {
4852 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4853 ppc_sth (code, ainfo->reg, inst->inst_offset, ppc_r12);
4855 ppc_load (code, ppc_r12, inst->inst_offset);
4856 ppc_sthx (code, ainfo->reg, inst->inst_basereg, ppc_r12);
4860 #ifdef __mono_ppc64__
4862 if (ppc_is_imm16 (inst->inst_offset)) {
4863 ppc_stw (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
4865 if (ppc_is_imm32 (inst->inst_offset)) {
4866 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4867 ppc_stw (code, ainfo->reg, inst->inst_offset, ppc_r12);
4869 ppc_load (code, ppc_r12, inst->inst_offset);
4870 ppc_stwx (code, ainfo->reg, inst->inst_basereg, ppc_r12);
4875 if (ppc_is_imm16 (inst->inst_offset)) {
4876 ppc_str (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
4878 ppc_load (code, ppc_r12, inst->inst_offset);
4879 ppc_str_indexed (code, ainfo->reg, ppc_r12, inst->inst_basereg);
4884 if (ppc_is_imm16 (inst->inst_offset + 4)) {
4885 ppc_stw (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
4886 ppc_stw (code, ainfo->reg + 1, inst->inst_offset + 4, inst->inst_basereg);
4888 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4889 ppc_addi (code, ppc_r12, ppc_r12, inst->inst_offset);
4890 ppc_stw (code, ainfo->reg, 0, ppc_r12);
4891 ppc_stw (code, ainfo->reg + 1, 4, ppc_r12);
4896 if (ppc_is_imm16 (inst->inst_offset)) {
4897 ppc_stptr (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
4899 if (ppc_is_imm32 (inst->inst_offset)) {
4900 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4901 ppc_stptr (code, ainfo->reg, inst->inst_offset, ppc_r12);
4903 ppc_load (code, ppc_r12, inst->inst_offset);
4904 ppc_stptr_indexed (code, ainfo->reg, inst->inst_basereg, ppc_r12);
4909 } else if (ainfo->regtype == RegTypeBase) {
4910 g_assert (ppc_is_imm16 (ainfo->offset));
4911 /* load the previous stack pointer in r12 */
4912 ppc_ldr (code, ppc_r12, 0, ppc_sp);
4913 ppc_ldptr (code, ppc_r0, ainfo->offset, ppc_r12);
4914 switch (ainfo->size) {
4916 if (ppc_is_imm16 (inst->inst_offset)) {
4917 ppc_stb (code, ppc_r0, inst->inst_offset, inst->inst_basereg);
4919 if (ppc_is_imm32 (inst->inst_offset)) {
4920 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4921 ppc_stb (code, ppc_r0, inst->inst_offset, ppc_r12);
4923 ppc_load (code, ppc_r12, inst->inst_offset);
4924 ppc_stbx (code, ppc_r0, inst->inst_basereg, ppc_r12);
4929 if (ppc_is_imm16 (inst->inst_offset)) {
4930 ppc_sth (code, ppc_r0, inst->inst_offset, inst->inst_basereg);
4932 if (ppc_is_imm32 (inst->inst_offset)) {
4933 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4934 ppc_sth (code, ppc_r0, inst->inst_offset, ppc_r12);
4936 ppc_load (code, ppc_r12, inst->inst_offset);
4937 ppc_sthx (code, ppc_r0, inst->inst_basereg, ppc_r12);
4941 #ifdef __mono_ppc64__
4943 if (ppc_is_imm16 (inst->inst_offset)) {
4944 ppc_stw (code, ppc_r0, inst->inst_offset, inst->inst_basereg);
4946 if (ppc_is_imm32 (inst->inst_offset)) {
4947 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4948 ppc_stw (code, ppc_r0, inst->inst_offset, ppc_r12);
4950 ppc_load (code, ppc_r12, inst->inst_offset);
4951 ppc_stwx (code, ppc_r0, inst->inst_basereg, ppc_r12);
4956 if (ppc_is_imm16 (inst->inst_offset)) {
4957 ppc_str (code, ppc_r0, inst->inst_offset, inst->inst_basereg);
4959 ppc_load (code, ppc_r12, inst->inst_offset);
4960 ppc_str_indexed (code, ppc_r0, ppc_r12, inst->inst_basereg);
4965 g_assert (ppc_is_imm16 (ainfo->offset + 4));
4966 if (ppc_is_imm16 (inst->inst_offset + 4)) {
4967 ppc_stw (code, ppc_r0, inst->inst_offset, inst->inst_basereg);
4968 ppc_lwz (code, ppc_r0, ainfo->offset + 4, ppc_r12);
4969 ppc_stw (code, ppc_r0, inst->inst_offset + 4, inst->inst_basereg);
4971 /* use r11 to load the 2nd half of the long before we clobber r12. */
4972 ppc_lwz (code, ppc_r11, ainfo->offset + 4, ppc_r12);
4973 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4974 ppc_addi (code, ppc_r12, ppc_r12, inst->inst_offset);
4975 ppc_stw (code, ppc_r0, 0, ppc_r12);
4976 ppc_stw (code, ppc_r11, 4, ppc_r12);
4981 if (ppc_is_imm16 (inst->inst_offset)) {
4982 ppc_stptr (code, ppc_r0, inst->inst_offset, inst->inst_basereg);
4984 if (ppc_is_imm32 (inst->inst_offset)) {
4985 ppc_addis (code, ppc_r12, inst->inst_basereg, ppc_ha(inst->inst_offset));
4986 ppc_stptr (code, ppc_r0, inst->inst_offset, ppc_r12);
4988 ppc_load (code, ppc_r12, inst->inst_offset);
4989 ppc_stptr_indexed (code, ppc_r0, inst->inst_basereg, ppc_r12);
4994 } else if (ainfo->regtype == RegTypeFP) {
4995 g_assert (ppc_is_imm16 (inst->inst_offset));
4996 if (ainfo->size == 8)
4997 ppc_stfd (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
4998 else if (ainfo->size == 4)
4999 ppc_stfs (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
5001 g_assert_not_reached ();
5002 } else if (ainfo->regtype == RegTypeStructByVal) {
5003 int doffset = inst->inst_offset;
5007 g_assert (ppc_is_imm16 (inst->inst_offset));
5008 g_assert (ppc_is_imm16 (inst->inst_offset + ainfo->vtregs * sizeof (gpointer)));
5009 /* FIXME: what if there is no class? */
5010 if (sig->pinvoke && mono_class_from_mono_type (inst->inst_vtype))
5011 size = mono_class_native_size (mono_class_from_mono_type (inst->inst_vtype), NULL);
5012 for (cur_reg = 0; cur_reg < ainfo->vtregs; ++cur_reg) {
5015 * Darwin handles 1 and 2 byte
5016 * structs specially by
5017 * loading h/b into the arg
5018 * register. Only done for
5022 ppc_sth (code, ainfo->reg + cur_reg, doffset, inst->inst_basereg);
5024 ppc_stb (code, ainfo->reg + cur_reg, doffset, inst->inst_basereg);
5028 #ifdef __mono_ppc64__
5030 g_assert (cur_reg == 0);
5031 ppc_sldi (code, ppc_r0, ainfo->reg,
5032 (sizeof (gpointer) - ainfo->bytes) * 8);
5033 ppc_stptr (code, ppc_r0, doffset, inst->inst_basereg);
5037 ppc_stptr (code, ainfo->reg + cur_reg, doffset,
5038 inst->inst_basereg);
5041 soffset += sizeof (gpointer);
5042 doffset += sizeof (gpointer);
5044 if (ainfo->vtsize) {
5045 /* FIXME: we need to do the shifting here, too */
5048 /* load the previous stack pointer in r12 (r0 gets overwritten by the memcpy) */
5049 ppc_ldr (code, ppc_r12, 0, ppc_sp);
5050 if ((size & MONO_PPC_32_64_CASE (3, 7)) != 0) {
5051 code = emit_memcpy (code, size - soffset,
5052 inst->inst_basereg, doffset,
5053 ppc_r12, ainfo->offset + soffset);
5055 code = emit_memcpy (code, ainfo->vtsize * sizeof (gpointer),
5056 inst->inst_basereg, doffset,
5057 ppc_r12, ainfo->offset + soffset);
5060 } else if (ainfo->regtype == RegTypeStructByAddr) {
5061 /* if it was originally a RegTypeBase */
5062 if (ainfo->offset) {
5063 /* load the previous stack pointer in r12 */
5064 ppc_ldr (code, ppc_r12, 0, ppc_sp);
5065 ppc_ldptr (code, ppc_r12, ainfo->offset, ppc_r12);
5067 ppc_mr (code, ppc_r12, ainfo->reg);
5070 if (cfg->tailcall_valuetype_addrs) {
5071 MonoInst *addr = cfg->tailcall_valuetype_addrs [tailcall_struct_index];
5073 g_assert (ppc_is_imm16 (addr->inst_offset));
5074 ppc_stptr (code, ppc_r12, addr->inst_offset, addr->inst_basereg);
5076 tailcall_struct_index++;
5079 g_assert (ppc_is_imm16 (inst->inst_offset));
5080 code = emit_memcpy (code, ainfo->vtsize, inst->inst_basereg, inst->inst_offset, ppc_r12, 0);
5081 /*g_print ("copy in %s: %d bytes from %d to offset: %d\n", method->name, ainfo->vtsize, ainfo->reg, inst->inst_offset);*/
5083 g_assert_not_reached ();
5088 if (method->save_lmf) {
5089 if (lmf_pthread_key != -1) {
5090 emit_tls_access (code, ppc_r3, lmf_pthread_key);
5091 if (tls_mode != TLS_MODE_NPTL && G_STRUCT_OFFSET (MonoJitTlsData, lmf))
5092 ppc_addi (code, ppc_r3, ppc_r3, G_STRUCT_OFFSET (MonoJitTlsData, lmf));
5094 if (cfg->compile_aot) {
5095 /* Compute the got address which is needed by the PLT entry */
5096 code = mono_arch_emit_load_got_addr (cfg->native_code, code, cfg, NULL);
5098 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
5099 (gpointer)"mono_get_lmf_addr");
5100 if ((FORCE_INDIR_CALL || cfg->method->dynamic) && !cfg->compile_aot) {
5101 ppc_load_func (code, ppc_r0, 0);
5102 ppc_mtlr (code, ppc_r0);
5108 /* we build the MonoLMF structure on the stack - see mini-ppc.h */
5109 /* lmf_offset is the offset from the previous stack pointer,
5110 * alloc_size is the total stack space allocated, so the offset
5111 * of MonoLMF from the current stack ptr is alloc_size - lmf_offset.
5112 * The pointer to the struct is put in ppc_r12 (new_lmf).
5113 * The callee-saved registers are already in the MonoLMF structure
5115 ppc_addi (code, ppc_r12, ppc_sp, alloc_size - lmf_offset);
5116 /* ppc_r3 is the result from mono_get_lmf_addr () */
5117 ppc_stptr (code, ppc_r3, G_STRUCT_OFFSET(MonoLMF, lmf_addr), ppc_r12);
5118 /* new_lmf->previous_lmf = *lmf_addr */
5119 ppc_ldptr (code, ppc_r0, G_STRUCT_OFFSET(MonoLMF, previous_lmf), ppc_r3);
5120 ppc_stptr (code, ppc_r0, G_STRUCT_OFFSET(MonoLMF, previous_lmf), ppc_r12);
5121 /* *(lmf_addr) = r12 */
5122 ppc_stptr (code, ppc_r12, G_STRUCT_OFFSET(MonoLMF, previous_lmf), ppc_r3);
5123 /* save method info */
5124 if (cfg->compile_aot)
5126 ppc_load (code, ppc_r0, 0);
5128 ppc_load_ptr (code, ppc_r0, method);
5129 ppc_stptr (code, ppc_r0, G_STRUCT_OFFSET(MonoLMF, method), ppc_r12);
5130 ppc_stptr (code, ppc_sp, G_STRUCT_OFFSET(MonoLMF, ebp), ppc_r12);
5131 /* save the current IP */
5132 if (cfg->compile_aot) {
5134 ppc_mflr (code, ppc_r0);
5136 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_IP, NULL);
5137 #ifdef __mono_ppc64__
5138 ppc_load_sequence (code, ppc_r0, (guint64)0x0101010101010101LL);
5140 ppc_load_sequence (code, ppc_r0, (gulong)0x01010101L);
5143 ppc_stptr (code, ppc_r0, G_STRUCT_OFFSET(MonoLMF, eip), ppc_r12);
5147 code = mono_arch_instrument_prolog (cfg, mono_trace_enter_method, code, TRUE);
5149 cfg->code_len = code - cfg->native_code;
5150 g_assert (cfg->code_len <= cfg->code_size);
5157 mono_arch_emit_epilog (MonoCompile *cfg)
5159 MonoMethod *method = cfg->method;
5161 int max_epilog_size = 16 + 20*4;
5164 if (cfg->method->save_lmf)
5165 max_epilog_size += 128;
5167 if (mono_jit_trace_calls != NULL)
5168 max_epilog_size += 50;
5170 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
5171 max_epilog_size += 50;
5173 while (cfg->code_len + max_epilog_size > (cfg->code_size - 16)) {
5174 cfg->code_size *= 2;
5175 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5176 cfg->stat_code_reallocs++;
5180 * Keep in sync with OP_JMP
5182 code = cfg->native_code + cfg->code_len;
5184 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5185 code = mono_arch_instrument_epilog (cfg, mono_trace_leave_method, code, TRUE);
5189 if (method->save_lmf) {
5191 pos += sizeof (MonoLMF);
5193 /* save the frame reg in r8 */
5194 ppc_mr (code, ppc_r8, cfg->frame_reg);
5195 ppc_addi (code, ppc_r12, cfg->frame_reg, cfg->stack_usage - lmf_offset);
5196 /* r5 = previous_lmf */
5197 ppc_ldptr (code, ppc_r5, G_STRUCT_OFFSET(MonoLMF, previous_lmf), ppc_r12);
5199 ppc_ldptr (code, ppc_r6, G_STRUCT_OFFSET(MonoLMF, lmf_addr), ppc_r12);
5200 /* *(lmf_addr) = previous_lmf */
5201 ppc_stptr (code, ppc_r5, G_STRUCT_OFFSET(MonoLMF, previous_lmf), ppc_r6);
5202 /* FIXME: speedup: there is no actual need to restore the registers if
5203 * we didn't actually change them (idea from Zoltan).
5206 ppc_ldr_multiple (code, ppc_r13, G_STRUCT_OFFSET(MonoLMF, iregs), ppc_r12);
5208 /*for (i = 14; i < 32; i++) {
5209 ppc_lfd (code, i, G_STRUCT_OFFSET(MonoLMF, fregs) + ((i-14) * sizeof (gdouble)), ppc_r12);
5211 g_assert (ppc_is_imm16 (cfg->stack_usage + PPC_RET_ADDR_OFFSET));
5212 /* use the saved copy of the frame reg in r8 */
5213 if (1 || cfg->flags & MONO_CFG_HAS_CALLS) {
5214 ppc_ldr (code, ppc_r0, cfg->stack_usage + PPC_RET_ADDR_OFFSET, ppc_r8);
5215 ppc_mtlr (code, ppc_r0);
5217 ppc_addic (code, ppc_sp, ppc_r8, cfg->stack_usage);
5219 if (1 || cfg->flags & MONO_CFG_HAS_CALLS) {
5220 long return_offset = cfg->stack_usage + PPC_RET_ADDR_OFFSET;
5221 if (ppc_is_imm16 (return_offset)) {
5222 ppc_ldr (code, ppc_r0, return_offset, cfg->frame_reg);
5224 ppc_load (code, ppc_r12, return_offset);
5225 ppc_ldr_indexed (code, ppc_r0, cfg->frame_reg, ppc_r12);
5227 ppc_mtlr (code, ppc_r0);
5229 if (ppc_is_imm16 (cfg->stack_usage)) {
5230 int offset = cfg->stack_usage;
5231 for (i = 13; i <= 31; i++) {
5232 if (cfg->used_int_regs & (1 << i))
5233 offset -= sizeof (mgreg_t);
5235 if (cfg->frame_reg != ppc_sp)
5236 ppc_mr (code, ppc_r12, cfg->frame_reg);
5237 /* note r31 (possibly the frame register) is restored last */
5238 for (i = 13; i <= 31; i++) {
5239 if (cfg->used_int_regs & (1 << i)) {
5240 ppc_ldr (code, i, offset, cfg->frame_reg);
5241 offset += sizeof (mgreg_t);
5244 if (cfg->frame_reg != ppc_sp)
5245 ppc_addi (code, ppc_sp, ppc_r12, cfg->stack_usage);
5247 ppc_addi (code, ppc_sp, ppc_sp, cfg->stack_usage);
5249 ppc_load32 (code, ppc_r12, cfg->stack_usage);
5250 if (cfg->used_int_regs) {
5251 ppc_add (code, ppc_r12, cfg->frame_reg, ppc_r12);
5252 for (i = 31; i >= 13; --i) {
5253 if (cfg->used_int_regs & (1 << i)) {
5254 pos += sizeof (mgreg_t);
5255 ppc_ldr (code, i, -pos, ppc_r12);
5258 ppc_mr (code, ppc_sp, ppc_r12);
5260 ppc_add (code, ppc_sp, cfg->frame_reg, ppc_r12);
5267 cfg->code_len = code - cfg->native_code;
5269 g_assert (cfg->code_len < cfg->code_size);
5272 #endif /* ifndef DISABLE_JIT */
5274 /* remove once throw_exception_by_name is eliminated */
5276 exception_id_by_name (const char *name)
5278 if (strcmp (name, "IndexOutOfRangeException") == 0)
5279 return MONO_EXC_INDEX_OUT_OF_RANGE;
5280 if (strcmp (name, "OverflowException") == 0)
5281 return MONO_EXC_OVERFLOW;
5282 if (strcmp (name, "ArithmeticException") == 0)
5283 return MONO_EXC_ARITHMETIC;
5284 if (strcmp (name, "DivideByZeroException") == 0)
5285 return MONO_EXC_DIVIDE_BY_ZERO;
5286 if (strcmp (name, "InvalidCastException") == 0)
5287 return MONO_EXC_INVALID_CAST;
5288 if (strcmp (name, "NullReferenceException") == 0)
5289 return MONO_EXC_NULL_REF;
5290 if (strcmp (name, "ArrayTypeMismatchException") == 0)
5291 return MONO_EXC_ARRAY_TYPE_MISMATCH;
5292 if (strcmp (name, "ArgumentException") == 0)
5293 return MONO_EXC_ARGUMENT;
5294 g_error ("Unknown intrinsic exception %s\n", name);
5300 mono_arch_emit_exceptions (MonoCompile *cfg)
5302 MonoJumpInfo *patch_info;
5305 guint8* exc_throw_pos [MONO_EXC_INTRINS_NUM];
5306 guint8 exc_throw_found [MONO_EXC_INTRINS_NUM];
5307 int max_epilog_size = 50;
5309 for (i = 0; i < MONO_EXC_INTRINS_NUM; i++) {
5310 exc_throw_pos [i] = NULL;
5311 exc_throw_found [i] = 0;
5314 /* count the number of exception infos */
5317 * make sure we have enough space for exceptions
5319 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5320 if (patch_info->type == MONO_PATCH_INFO_EXC) {
5321 i = exception_id_by_name (patch_info->data.target);
5322 if (!exc_throw_found [i]) {
5323 max_epilog_size += (2 * PPC_LOAD_SEQUENCE_LENGTH) + 5 * 4;
5324 exc_throw_found [i] = TRUE;
5326 } else if (patch_info->type == MONO_PATCH_INFO_BB_OVF)
5327 max_epilog_size += 12;
5328 else if (patch_info->type == MONO_PATCH_INFO_EXC_OVF) {
5329 MonoOvfJump *ovfj = (MonoOvfJump*)patch_info->data.target;
5330 i = exception_id_by_name (ovfj->data.exception);
5331 if (!exc_throw_found [i]) {
5332 max_epilog_size += (2 * PPC_LOAD_SEQUENCE_LENGTH) + 5 * 4;
5333 exc_throw_found [i] = TRUE;
5335 max_epilog_size += 8;
5339 while (cfg->code_len + max_epilog_size > (cfg->code_size - 16)) {
5340 cfg->code_size *= 2;
5341 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5342 cfg->stat_code_reallocs++;
5345 code = cfg->native_code + cfg->code_len;
5347 /* add code to raise exceptions */
5348 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5349 switch (patch_info->type) {
5350 case MONO_PATCH_INFO_BB_OVF: {
5351 MonoOvfJump *ovfj = (MonoOvfJump*)patch_info->data.target;
5352 unsigned char *ip = patch_info->ip.i + cfg->native_code;
5353 /* patch the initial jump */
5354 ppc_patch (ip, code);
5355 ppc_bc (code, ovfj->b0_cond, ovfj->b1_cond, 2);
5357 ppc_patch (code - 4, ip + 4); /* jump back after the initiali branch */
5358 /* jump back to the true target */
5360 ip = ovfj->data.bb->native_offset + cfg->native_code;
5361 ppc_patch (code - 4, ip);
5362 patch_info->type = MONO_PATCH_INFO_NONE;
5365 case MONO_PATCH_INFO_EXC_OVF: {
5366 MonoOvfJump *ovfj = (MonoOvfJump*)patch_info->data.target;
5367 MonoJumpInfo *newji;
5368 unsigned char *ip = patch_info->ip.i + cfg->native_code;
5369 unsigned char *bcl = code;
5370 /* patch the initial jump: we arrived here with a call */
5371 ppc_patch (ip, code);
5372 ppc_bc (code, ovfj->b0_cond, ovfj->b1_cond, 0);
5374 ppc_patch (code - 4, ip + 4); /* jump back after the initiali branch */
5375 /* patch the conditional jump to the right handler */
5376 /* make it processed next */
5377 newji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
5378 newji->type = MONO_PATCH_INFO_EXC;
5379 newji->ip.i = bcl - cfg->native_code;
5380 newji->data.target = ovfj->data.exception;
5381 newji->next = patch_info->next;
5382 patch_info->next = newji;
5383 patch_info->type = MONO_PATCH_INFO_NONE;
5386 case MONO_PATCH_INFO_EXC: {
5387 MonoClass *exc_class;
5389 unsigned char *ip = patch_info->ip.i + cfg->native_code;
5390 i = exception_id_by_name (patch_info->data.target);
5391 if (exc_throw_pos [i] && !(ip > exc_throw_pos [i] && ip - exc_throw_pos [i] > 50000)) {
5392 ppc_patch (ip, exc_throw_pos [i]);
5393 patch_info->type = MONO_PATCH_INFO_NONE;
5396 exc_throw_pos [i] = code;
5399 exc_class = mono_class_from_name (mono_defaults.corlib, "System", patch_info->data.name);
5400 g_assert (exc_class);
5402 ppc_patch (ip, code);
5403 /*mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_EXC_NAME, patch_info->data.target);*/
5404 ppc_load (code, ppc_r3, exc_class->type_token);
5405 /* we got here from a conditional call, so the calling ip is set in lr */
5406 ppc_mflr (code, ppc_r4);
5407 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5408 patch_info->data.name = "mono_arch_throw_corlib_exception";
5409 patch_info->ip.i = code - cfg->native_code;
5410 if (FORCE_INDIR_CALL || cfg->method->dynamic) {
5411 ppc_load_func (code, ppc_r0, 0);
5412 ppc_mtctr (code, ppc_r0);
5413 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
5425 cfg->code_len = code - cfg->native_code;
5427 g_assert (cfg->code_len <= cfg->code_size);
5433 try_offset_access (void *value, guint32 idx)
5435 register void* me __asm__ ("r2");
5436 void ***p = (void***)((char*)me + 284);
5437 int idx1 = idx / 32;
5438 int idx2 = idx % 32;
5441 if (value != p[idx1][idx2])
5448 setup_tls_access (void)
5450 #if defined(__linux__) && defined(_CS_GNU_LIBPTHREAD_VERSION)
5451 size_t conf_size = 0;
5454 /* FIXME for darwin */
5455 guint32 *ins, *code;
5456 guint32 cmplwi_1023, li_0x48, blr_ins;
5460 tls_mode = TLS_MODE_FAILED;
5463 if (tls_mode == TLS_MODE_FAILED)
5465 if (g_getenv ("MONO_NO_TLS")) {
5466 tls_mode = TLS_MODE_FAILED;
5470 if (tls_mode == TLS_MODE_DETECT) {
5471 #if defined(__APPLE__) && defined(__mono_ppc__) && !defined(__mono_ppc64__)
5472 tls_mode = TLS_MODE_DARWIN_G4;
5473 #elif defined(__linux__) && defined(_CS_GNU_LIBPTHREAD_VERSION)
5474 conf_size = confstr ( _CS_GNU_LIBPTHREAD_VERSION, confbuf, sizeof(confbuf));
5475 if ((conf_size > 4) && (strncmp (confbuf, "NPTL", 4) == 0))
5476 tls_mode = TLS_MODE_NPTL;
5477 #elif !defined(TARGET_PS3)
5478 ins = (guint32*)pthread_getspecific;
5479 /* uncond branch to the real method */
5480 if ((*ins >> 26) == 18) {
5482 val = (*ins & ~3) << 6;
5486 ins = (guint32*)(long)val;
5488 ins = (guint32*) ((char*)ins + val);
5491 code = &cmplwi_1023;
5492 ppc_cmpli (code, 0, 0, ppc_r3, 1023);
5494 ppc_li (code, ppc_r4, 0x48);
5497 if (*ins == cmplwi_1023) {
5498 int found_lwz_284 = 0;
5500 for (ptk = 0; ptk < 20; ++ptk) {
5502 if (!*ins || *ins == blr_ins)
5504 if ((guint16)*ins == 284 && (*ins >> 26) == 32) {
5509 if (!found_lwz_284) {
5510 tls_mode = TLS_MODE_FAILED;
5513 tls_mode = TLS_MODE_LTHREADS;
5514 } else if (*ins == li_0x48) {
5516 /* uncond branch to the real method */
5517 if ((*ins >> 26) == 18) {
5519 val = (*ins & ~3) << 6;
5523 ins = (guint32*)(long)val;
5525 ins = (guint32*) ((char*)ins + val);
5527 code = (guint32*)&val;
5528 ppc_li (code, ppc_r0, 0x7FF2);
5529 if (ins [1] == val) {
5530 /* Darwin on G4, implement */
5531 tls_mode = TLS_MODE_FAILED;
5534 code = (guint32*)&val;
5535 ppc_mfspr (code, ppc_r3, 104);
5536 if (ins [1] != val) {
5537 tls_mode = TLS_MODE_FAILED;
5540 tls_mode = TLS_MODE_DARWIN_G5;
5543 tls_mode = TLS_MODE_FAILED;
5547 tls_mode = TLS_MODE_FAILED;
5553 if (tls_mode == TLS_MODE_DETECT)
5554 tls_mode = TLS_MODE_FAILED;
5555 if (tls_mode == TLS_MODE_FAILED)
5557 if ((lmf_pthread_key == -1) && (tls_mode == TLS_MODE_NPTL)) {
5558 lmf_pthread_key = mono_get_lmf_addr_tls_offset();
5562 /* if not TLS_MODE_NPTL or local dynamic (as indicated by
5563 mono_get_lmf_addr_tls_offset returning -1) then use keyed access. */
5564 if (lmf_pthread_key == -1) {
5565 guint32 ptk = mono_jit_tls_id;
5567 /*g_print ("MonoLMF at: %d\n", ptk);*/
5568 /*if (!try_offset_access (mono_get_lmf_addr (), ptk)) {
5569 init_tls_failed = 1;
5572 lmf_pthread_key = ptk;
5581 mono_arch_finish_init (void)
5583 setup_tls_access ();
5587 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5591 #define CMP_SIZE (PPC_LOAD_SEQUENCE_LENGTH + 4)
5593 #define LOADSTORE_SIZE 4
5594 #define JUMP_IMM_SIZE 12
5595 #define JUMP_IMM32_SIZE (PPC_LOAD_SEQUENCE_LENGTH + 8)
5596 #define ENABLE_WRONG_METHOD_CHECK 0
5599 * LOCKING: called with the domain lock held
5602 mono_arch_build_imt_thunk (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count,
5603 gpointer fail_tramp)
5607 guint8 *code, *start;
5609 for (i = 0; i < count; ++i) {
5610 MonoIMTCheckItem *item = imt_entries [i];
5611 if (item->is_equals) {
5612 if (item->check_target_idx) {
5613 if (!item->compare_done)
5614 item->chunk_size += CMP_SIZE;
5615 if (item->has_target_code)
5616 item->chunk_size += BR_SIZE + JUMP_IMM32_SIZE;
5618 item->chunk_size += LOADSTORE_SIZE + BR_SIZE + JUMP_IMM_SIZE;
5621 item->chunk_size += CMP_SIZE + BR_SIZE + JUMP_IMM32_SIZE * 2;
5622 if (!item->has_target_code)
5623 item->chunk_size += LOADSTORE_SIZE;
5625 item->chunk_size += LOADSTORE_SIZE + JUMP_IMM_SIZE;
5626 #if ENABLE_WRONG_METHOD_CHECK
5627 item->chunk_size += CMP_SIZE + BR_SIZE + 4;
5632 item->chunk_size += CMP_SIZE + BR_SIZE;
5633 imt_entries [item->check_target_idx]->compare_done = TRUE;
5635 size += item->chunk_size;
5637 /* the initial load of the vtable address */
5638 size += PPC_LOAD_SEQUENCE_LENGTH + LOADSTORE_SIZE;
5640 code = mono_method_alloc_generic_virtual_thunk (domain, size);
5642 code = mono_domain_code_reserve (domain, size);
5647 * We need to save and restore r12 because it might be
5648 * used by the caller as the vtable register, so
5649 * clobbering it will trip up the magic trampoline.
5651 * FIXME: Get rid of this by making sure that r12 is
5652 * not used as the vtable register in interface calls.
5654 ppc_stptr (code, ppc_r12, PPC_RET_ADDR_OFFSET, ppc_sp);
5655 ppc_load (code, ppc_r12, (gsize)(& (vtable->vtable [0])));
5657 for (i = 0; i < count; ++i) {
5658 MonoIMTCheckItem *item = imt_entries [i];
5659 item->code_target = code;
5660 if (item->is_equals) {
5661 if (item->check_target_idx) {
5662 if (!item->compare_done) {
5663 ppc_load (code, ppc_r0, (gsize)item->key);
5664 ppc_compare_log (code, 0, MONO_ARCH_IMT_REG, ppc_r0);
5666 item->jmp_code = code;
5667 ppc_bc (code, PPC_BR_FALSE, PPC_BR_EQ, 0);
5668 if (item->has_target_code) {
5669 ppc_load_ptr (code, ppc_r0, item->value.target_code);
5671 ppc_ldptr (code, ppc_r0, (sizeof (gpointer) * item->value.vtable_slot), ppc_r12);
5672 ppc_ldptr (code, ppc_r12, PPC_RET_ADDR_OFFSET, ppc_sp);
5674 ppc_mtctr (code, ppc_r0);
5675 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
5678 ppc_load (code, ppc_r0, (gulong)item->key);
5679 ppc_compare_log (code, 0, MONO_ARCH_IMT_REG, ppc_r0);
5680 item->jmp_code = code;
5681 ppc_bc (code, PPC_BR_FALSE, PPC_BR_EQ, 0);
5682 if (item->has_target_code) {
5683 ppc_load_ptr (code, ppc_r0, item->value.target_code);
5686 ppc_load_ptr (code, ppc_r0, & (vtable->vtable [item->value.vtable_slot]));
5687 ppc_ldptr_indexed (code, ppc_r0, 0, ppc_r0);
5689 ppc_mtctr (code, ppc_r0);
5690 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
5691 ppc_patch (item->jmp_code, code);
5692 ppc_load_ptr (code, ppc_r0, fail_tramp);
5693 ppc_mtctr (code, ppc_r0);
5694 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
5695 item->jmp_code = NULL;
5697 /* enable the commented code to assert on wrong method */
5698 #if ENABLE_WRONG_METHOD_CHECK
5699 ppc_load (code, ppc_r0, (guint32)item->key);
5700 ppc_compare_log (code, 0, MONO_ARCH_IMT_REG, ppc_r0);
5701 item->jmp_code = code;
5702 ppc_bc (code, PPC_BR_FALSE, PPC_BR_EQ, 0);
5704 ppc_ldptr (code, ppc_r0, (sizeof (gpointer) * item->value.vtable_slot), ppc_r12);
5705 ppc_ldptr (code, ppc_r12, PPC_RET_ADDR_OFFSET, ppc_sp);
5706 ppc_mtctr (code, ppc_r0);
5707 ppc_bcctr (code, PPC_BR_ALWAYS, 0);
5708 #if ENABLE_WRONG_METHOD_CHECK
5709 ppc_patch (item->jmp_code, code);
5711 item->jmp_code = NULL;
5716 ppc_load (code, ppc_r0, (gulong)item->key);
5717 ppc_compare_log (code, 0, MONO_ARCH_IMT_REG, ppc_r0);
5718 item->jmp_code = code;
5719 ppc_bc (code, PPC_BR_FALSE, PPC_BR_LT, 0);
5722 /* patch the branches to get to the target items */
5723 for (i = 0; i < count; ++i) {
5724 MonoIMTCheckItem *item = imt_entries [i];
5725 if (item->jmp_code) {
5726 if (item->check_target_idx) {
5727 ppc_patch (item->jmp_code, imt_entries [item->check_target_idx]->code_target);
5733 mono_stats.imt_thunks_size += code - start;
5734 g_assert (code - start <= size);
5735 mono_arch_flush_icache (start, size);
5740 mono_arch_find_imt_method (mgreg_t *regs, guint8 *code)
5742 mgreg_t *r = (mgreg_t*)regs;
5744 return (MonoMethod*)(gsize) r [MONO_ARCH_IMT_REG];
5748 mono_arch_find_static_call_vtable (mgreg_t *regs, guint8 *code)
5750 mgreg_t *r = (mgreg_t*)regs;
5752 return (MonoVTable*)(gsize) r [MONO_ARCH_RGCTX_REG];
5756 mono_arch_get_cie_program (void)
5760 mono_add_unwind_op_def_cfa (l, (guint8*)NULL, (guint8*)NULL, ppc_r1, 0);
5766 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5773 mono_arch_print_tree (MonoInst *tree, int arity)
5779 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5782 return (mgreg_t)MONO_CONTEXT_GET_SP (ctx);
5784 g_assert (reg >= ppc_r13);
5786 return ctx->regs [reg - ppc_r13];
5790 mono_arch_get_patch_offset (guint8 *code)
5796 * mono_aot_emit_load_got_addr:
5798 * Emit code to load the got address.
5799 * On PPC, the result is placed into r30.
5802 mono_arch_emit_load_got_addr (guint8 *start, guint8 *code, MonoCompile *cfg, MonoJumpInfo **ji)
5805 ppc_mflr (code, ppc_r30);
5807 mono_add_patch_info (cfg, code - start, MONO_PATCH_INFO_GOT_OFFSET, NULL);
5809 *ji = mono_patch_info_list_prepend (*ji, code - start, MONO_PATCH_INFO_GOT_OFFSET, NULL);
5810 /* arch_emit_got_address () patches this */
5811 #if defined(TARGET_POWERPC64)
5817 ppc_load32 (code, ppc_r0, 0);
5818 ppc_add (code, ppc_r30, ppc_r30, ppc_r0);
5825 * mono_ppc_emit_load_aotconst:
5827 * Emit code to load the contents of the GOT slot identified by TRAMP_TYPE and
5828 * TARGET from the mscorlib GOT in full-aot code.
5829 * On PPC, the GOT address is assumed to be in r30, and the result is placed into
5833 mono_arch_emit_load_aotconst (guint8 *start, guint8 *code, MonoJumpInfo **ji, int tramp_type, gconstpointer target)
5835 /* Load the mscorlib got address */
5836 ppc_ldptr (code, ppc_r12, sizeof (gpointer), ppc_r30);
5837 *ji = mono_patch_info_list_prepend (*ji, code - start, tramp_type, target);
5838 /* arch_emit_got_access () patches this */
5839 ppc_load32 (code, ppc_r0, 0);
5840 ppc_ldptr_indexed (code, ppc_r12, ppc_r12, ppc_r0);
5845 /* Soft Debug support */
5846 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
5853 * mono_arch_set_breakpoint:
5855 * See mini-amd64.c for docs.
5858 mono_arch_set_breakpoint (MonoJitInfo *ji, guint8 *ip)
5861 guint8 *orig_code = code;
5863 ppc_load_sequence (code, ppc_r12, (gsize)bp_trigger_page);
5864 ppc_ldptr (code, ppc_r12, 0, ppc_r12);
5866 g_assert (code - orig_code == BREAKPOINT_SIZE);
5868 mono_arch_flush_icache (orig_code, code - orig_code);
5872 * mono_arch_clear_breakpoint:
5874 * See mini-amd64.c for docs.
5877 mono_arch_clear_breakpoint (MonoJitInfo *ji, guint8 *ip)
5882 for (i = 0; i < BREAKPOINT_SIZE / 4; ++i)
5885 mono_arch_flush_icache (ip, code - ip);
5889 * mono_arch_is_breakpoint_event:
5891 * See mini-amd64.c for docs.
5894 mono_arch_is_breakpoint_event (void *info, void *sigctx)
5896 siginfo_t* sinfo = (siginfo_t*) info;
5897 /* Sometimes the address is off by 4 */
5898 if (sinfo->si_addr >= bp_trigger_page && (guint8*)sinfo->si_addr <= (guint8*)bp_trigger_page + 128)
5905 * mono_arch_skip_breakpoint:
5907 * See mini-amd64.c for docs.
5910 mono_arch_skip_breakpoint (MonoContext *ctx, MonoJitInfo *ji)
5912 /* skip the ldptr */
5913 MONO_CONTEXT_SET_IP (ctx, (guint8*)MONO_CONTEXT_GET_IP (ctx) + 4);
5921 * mono_arch_start_single_stepping:
5923 * See mini-amd64.c for docs.
5926 mono_arch_start_single_stepping (void)
5928 mono_mprotect (ss_trigger_page, mono_pagesize (), 0);
5932 * mono_arch_stop_single_stepping:
5934 * See mini-amd64.c for docs.
5937 mono_arch_stop_single_stepping (void)
5939 mono_mprotect (ss_trigger_page, mono_pagesize (), MONO_MMAP_READ);
5943 * mono_arch_is_single_step_event:
5945 * See mini-amd64.c for docs.
5948 mono_arch_is_single_step_event (void *info, void *sigctx)
5950 siginfo_t* sinfo = (siginfo_t*) info;
5951 /* Sometimes the address is off by 4 */
5952 if (sinfo->si_addr >= ss_trigger_page && (guint8*)sinfo->si_addr <= (guint8*)ss_trigger_page + 128)
5959 * mono_arch_skip_single_step:
5961 * See mini-amd64.c for docs.
5964 mono_arch_skip_single_step (MonoContext *ctx)
5966 /* skip the ldptr */
5967 MONO_CONTEXT_SET_IP (ctx, (guint8*)MONO_CONTEXT_GET_IP (ctx) + 4);
5971 * mono_arch_create_seq_point_info:
5973 * See mini-amd64.c for docs.
5976 mono_arch_get_seq_point_info (MonoDomain *domain, guint8 *code)
5983 mono_arch_init_lmf_ext (MonoLMFExt *ext, gpointer prev_lmf)
5985 ext->lmf.previous_lmf = prev_lmf;
5986 /* Mark that this is a MonoLMFExt */
5987 ext->lmf.previous_lmf = (gpointer)(((gssize)ext->lmf.previous_lmf) | 2);
5988 ext->lmf.ebp = (gssize)ext;
5994 mono_arch_opcode_supported (int opcode)
5997 case OP_ATOMIC_ADD_I4:
5998 case OP_ATOMIC_CAS_I4:
5999 #ifdef TARGET_POWERPC64
6000 case OP_ATOMIC_ADD_I8:
6001 case OP_ATOMIC_CAS_I8: