2 * mini-llvm.c: llvm "Backend" for the mono JIT
4 * Copyright 2009-2011 Novell Inc (http://www.novell.com)
5 * Copyright 2011 Xamarin Inc (http://www.xamarin.com)
9 #include <mono/metadata/debug-helpers.h>
10 #include <mono/metadata/mempool-internals.h>
11 #include <mono/utils/mono-tls.h>
12 #include <mono/utils/mono-dl.h>
14 #ifndef __STDC_LIMIT_MACROS
15 #define __STDC_LIMIT_MACROS
17 #ifndef __STDC_CONSTANT_MACROS
18 #define __STDC_CONSTANT_MACROS
21 #include "llvm-c/Core.h"
22 #include "llvm-c/ExecutionEngine.h"
23 #include "llvm-c/BitWriter.h"
24 #include "llvm-c/Analysis.h"
26 #include "mini-llvm-cpp.h"
29 * Information associated by mono with LLVM modules.
33 LLVMValueRef throw, rethrow, throw_corlib_exception;
34 GHashTable *llvm_types;
36 const char *got_symbol;
37 GHashTable *plt_entries;
41 * Information associated by the backend with mono basic blocks.
44 LLVMBasicBlockRef bblock, end_bblock;
45 LLVMValueRef finally_ind;
46 gboolean added, invoke_target;
48 * If this bblock is the start of a finally clause, this is a list of bblocks it
49 * needs to branch to in ENDFINALLY.
51 GSList *call_handler_return_bbs;
53 * If this bblock is the start of a finally clause, this is the bblock that
54 * CALL_HANDLER needs to branch to.
56 LLVMBasicBlockRef call_handler_target_bb;
57 /* The list of switch statements generated by ENDFINALLY instructions */
58 GSList *endfinally_switch_ins_list;
63 * Structure containing emit state
68 /* Maps method names to the corresponding LLVMValueRef */
69 GHashTable *emitted_method_decls;
73 MonoLLVMModule *lmodule;
76 int sindex, default_index, ex_index;
77 LLVMBuilderRef builder;
78 LLVMValueRef *values, *addresses;
79 MonoType **vreg_cli_types;
81 MonoMethodSignature *sig;
83 GHashTable *region_to_handler;
84 LLVMBuilderRef alloca_builder;
85 LLVMValueRef last_alloca;
86 LLVMValueRef rgctx_arg;
87 LLVMTypeRef *vreg_types;
89 gboolean *unreachable;
98 MonoBasicBlock *in_bb;
103 * Instruction metadata
104 * This is the same as ins_info, but LREG != IREG.
112 #define MINI_OP(a,b,dest,src1,src2) dest, src1, src2, ' ',
113 #define MINI_OP3(a,b,dest,src1,src2,src3) dest, src1, src2, src3,
120 /* keep in sync with the enum in mini.h */
123 #include "mini-ops.h"
128 #if SIZEOF_VOID_P == 4
129 #define GET_LONG_IMM(ins) (((guint64)(ins)->inst_ms_word << 32) | (guint64)(guint32)(ins)->inst_ls_word)
131 #define GET_LONG_IMM(ins) ((ins)->inst_imm)
134 #define LLVM_INS_INFO(opcode) (&llvm_ins_info [((opcode) - OP_START - 1) * 4])
137 #define TRACE_FAILURE(msg) do { printf ("%s\n", msg); } while (0)
139 #define TRACE_FAILURE(msg)
143 #define IS_TARGET_X86 1
145 #define IS_TARGET_X86 0
148 #define LLVM_FAILURE(ctx, reason) do { \
149 TRACE_FAILURE (reason); \
150 (ctx)->cfg->exception_message = g_strdup (reason); \
151 (ctx)->cfg->disable_llvm = TRUE; \
155 #define CHECK_FAILURE(ctx) do { \
156 if ((ctx)->cfg->disable_llvm) \
160 static LLVMIntPredicate cond_to_llvm_cond [] = {
173 static LLVMRealPredicate fpcond_to_llvm_cond [] = {
186 static LLVMExecutionEngineRef ee;
187 static MonoNativeTlsKey current_cfg_tls_id;
189 static MonoLLVMModule jit_module, aot_module;
190 static gboolean jit_module_inited;
191 static int memset_param_count, memcpy_param_count;
192 static const char *memset_func_name;
193 static const char *memcpy_func_name;
195 static void init_jit_module (void);
200 * The LLVM type with width == sizeof (gpointer)
205 return sizeof (gpointer) == 8 ? LLVMInt64Type () : LLVMInt32Type ();
211 * Return the size of the LLVM representation of the vtype T.
214 get_vtype_size (MonoType *t)
218 size = mono_class_value_size (mono_class_from_mono_type (t), NULL);
220 while (size < sizeof (gpointer) && mono_is_power_of_two (size) == -1)
227 * simd_class_to_llvm_type:
229 * Return the LLVM type corresponding to the Mono.SIMD class KLASS
232 simd_class_to_llvm_type (EmitContext *ctx, MonoClass *klass)
234 if (!strcmp (klass->name, "Vector2d")) {
235 return LLVMVectorType (LLVMDoubleType (), 2);
236 } else if (!strcmp (klass->name, "Vector2l")) {
237 return LLVMVectorType (LLVMInt64Type (), 2);
238 } else if (!strcmp (klass->name, "Vector2ul")) {
239 return LLVMVectorType (LLVMInt64Type (), 2);
240 } else if (!strcmp (klass->name, "Vector4i")) {
241 return LLVMVectorType (LLVMInt32Type (), 4);
242 } else if (!strcmp (klass->name, "Vector4ui")) {
243 return LLVMVectorType (LLVMInt32Type (), 4);
244 } else if (!strcmp (klass->name, "Vector4f")) {
245 return LLVMVectorType (LLVMFloatType (), 4);
246 } else if (!strcmp (klass->name, "Vector8s")) {
247 return LLVMVectorType (LLVMInt16Type (), 8);
248 } else if (!strcmp (klass->name, "Vector8us")) {
249 return LLVMVectorType (LLVMInt16Type (), 8);
250 } else if (!strcmp (klass->name, "Vector16sb")) {
251 return LLVMVectorType (LLVMInt8Type (), 16);
252 } else if (!strcmp (klass->name, "Vector16b")) {
253 return LLVMVectorType (LLVMInt8Type (), 16);
255 printf ("%s\n", klass->name);
261 /* Return the 128 bit SIMD type corresponding to the mono type TYPE */
262 static inline G_GNUC_UNUSED LLVMTypeRef
263 type_to_simd_type (int type)
267 return LLVMVectorType (LLVMInt8Type (), 16);
269 return LLVMVectorType (LLVMInt16Type (), 8);
271 return LLVMVectorType (LLVMInt32Type (), 4);
273 return LLVMVectorType (LLVMInt64Type (), 2);
275 return LLVMVectorType (LLVMDoubleType (), 2);
277 return LLVMVectorType (LLVMFloatType (), 4);
279 g_assert_not_reached ();
287 * Return the LLVM type corresponding to T.
290 type_to_llvm_type (EmitContext *ctx, MonoType *t)
293 return LLVMPointerType (LLVMInt8Type (), 0);
296 return LLVMVoidType ();
298 return LLVMInt8Type ();
300 return LLVMInt16Type ();
302 return LLVMInt32Type ();
304 return LLVMInt8Type ();
306 return LLVMInt16Type ();
308 return LLVMInt32Type ();
309 case MONO_TYPE_BOOLEAN:
310 return LLVMInt8Type ();
313 return LLVMInt64Type ();
315 return LLVMInt16Type ();
317 return LLVMFloatType ();
319 return LLVMDoubleType ();
322 return IntPtrType ();
323 case MONO_TYPE_OBJECT:
324 case MONO_TYPE_CLASS:
325 case MONO_TYPE_ARRAY:
326 case MONO_TYPE_SZARRAY:
327 case MONO_TYPE_STRING:
329 return IntPtrType ();
332 /* Because of generic sharing */
333 return IntPtrType ();
334 case MONO_TYPE_GENERICINST:
335 if (!mono_type_generic_inst_is_valuetype (t))
336 return IntPtrType ();
338 case MONO_TYPE_VALUETYPE:
339 case MONO_TYPE_TYPEDBYREF: {
343 klass = mono_class_from_mono_type (t);
345 if (MONO_CLASS_IS_SIMD (ctx->cfg, klass))
346 return simd_class_to_llvm_type (ctx, klass);
349 return type_to_llvm_type (ctx, mono_class_enum_basetype (klass));
350 ltype = g_hash_table_lookup (ctx->lmodule->llvm_types, klass);
353 LLVMTypeRef *eltypes;
356 size = get_vtype_size (t);
358 eltypes = g_new (LLVMTypeRef, size);
359 for (i = 0; i < size; ++i)
360 eltypes [i] = LLVMInt8Type ();
362 name = mono_type_full_name (&klass->byval_arg);
363 ltype = LLVMStructCreateNamed (LLVMGetGlobalContext (), name);
364 LLVMStructSetBody (ltype, eltypes, size, FALSE);
365 g_hash_table_insert (ctx->lmodule->llvm_types, klass, ltype);
372 printf ("X: %d\n", t->type);
373 ctx->cfg->exception_message = g_strdup_printf ("type %s", mono_type_full_name (t));
374 ctx->cfg->disable_llvm = TRUE;
382 * Return whenever T is an unsigned int type.
385 type_is_unsigned (EmitContext *ctx, MonoType *t)
401 * type_to_llvm_arg_type:
403 * Same as type_to_llvm_type, but treat i8/i16 as i32.
406 type_to_llvm_arg_type (EmitContext *ctx, MonoType *t)
408 LLVMTypeRef ptype = type_to_llvm_type (ctx, t);
410 if (ptype == LLVMInt8Type () || ptype == LLVMInt16Type ()) {
412 * LLVM generates code which only sets the lower bits, while JITted
413 * code expects all the bits to be set.
415 ptype = LLVMInt32Type ();
422 * llvm_type_to_stack_type:
424 * Return the LLVM type which needs to be used when a value of type TYPE is pushed
427 static G_GNUC_UNUSED LLVMTypeRef
428 llvm_type_to_stack_type (LLVMTypeRef type)
432 if (type == LLVMInt8Type ())
433 return LLVMInt32Type ();
434 else if (type == LLVMInt16Type ())
435 return LLVMInt32Type ();
436 else if (type == LLVMFloatType ())
437 return LLVMDoubleType ();
443 * regtype_to_llvm_type:
445 * Return the LLVM type corresponding to the regtype C used in instruction
449 regtype_to_llvm_type (char c)
453 return LLVMInt32Type ();
455 return LLVMInt64Type ();
457 return LLVMDoubleType ();
466 * Return the LLVM type corresponding to the unary/binary opcode OPCODE.
469 op_to_llvm_type (int opcode)
474 return LLVMInt8Type ();
477 return LLVMInt8Type ();
480 return LLVMInt16Type ();
483 return LLVMInt16Type ();
486 return LLVMInt32Type ();
489 return LLVMInt32Type ();
491 return LLVMInt64Type ();
493 return LLVMFloatType ();
495 return LLVMDoubleType ();
497 return LLVMInt64Type ();
499 return LLVMInt32Type ();
501 return LLVMInt64Type ();
504 return LLVMInt8Type ();
507 return LLVMInt16Type ();
510 return sizeof (gpointer) == 8 ? LLVMInt64Type () : LLVMInt32Type ();
517 return LLVMInt32Type ();
524 return LLVMInt64Type ();
526 printf ("%s\n", mono_inst_name (opcode));
527 g_assert_not_reached ();
533 * load_store_to_llvm_type:
535 * Return the size/sign/zero extension corresponding to the load/store opcode
539 load_store_to_llvm_type (int opcode, int *size, gboolean *sext, gboolean *zext)
545 case OP_LOADI1_MEMBASE:
546 case OP_STOREI1_MEMBASE_REG:
547 case OP_STOREI1_MEMBASE_IMM:
550 return LLVMInt8Type ();
551 case OP_LOADU1_MEMBASE:
555 return LLVMInt8Type ();
556 case OP_LOADI2_MEMBASE:
557 case OP_STOREI2_MEMBASE_REG:
558 case OP_STOREI2_MEMBASE_IMM:
561 return LLVMInt16Type ();
562 case OP_LOADU2_MEMBASE:
566 return LLVMInt16Type ();
567 case OP_LOADI4_MEMBASE:
568 case OP_LOADU4_MEMBASE:
571 case OP_STOREI4_MEMBASE_REG:
572 case OP_STOREI4_MEMBASE_IMM:
574 return LLVMInt32Type ();
575 case OP_LOADI8_MEMBASE:
577 case OP_STOREI8_MEMBASE_REG:
578 case OP_STOREI8_MEMBASE_IMM:
580 return LLVMInt64Type ();
581 case OP_LOADR4_MEMBASE:
582 case OP_STORER4_MEMBASE_REG:
584 return LLVMFloatType ();
585 case OP_LOADR8_MEMBASE:
586 case OP_STORER8_MEMBASE_REG:
588 return LLVMDoubleType ();
589 case OP_LOAD_MEMBASE:
591 case OP_STORE_MEMBASE_REG:
592 case OP_STORE_MEMBASE_IMM:
593 *size = sizeof (gpointer);
594 return IntPtrType ();
596 g_assert_not_reached ();
604 * Return the LLVM intrinsics corresponding to the overflow opcode OPCODE.
607 ovf_op_to_intrins (int opcode)
611 return "llvm.sadd.with.overflow.i32";
613 return "llvm.uadd.with.overflow.i32";
615 return "llvm.ssub.with.overflow.i32";
617 return "llvm.usub.with.overflow.i32";
619 return "llvm.smul.with.overflow.i32";
621 return "llvm.umul.with.overflow.i32";
623 return "llvm.sadd.with.overflow.i64";
625 return "llvm.uadd.with.overflow.i64";
627 return "llvm.ssub.with.overflow.i64";
629 return "llvm.usub.with.overflow.i64";
631 return "llvm.smul.with.overflow.i64";
633 return "llvm.umul.with.overflow.i64";
635 g_assert_not_reached ();
641 simd_op_to_intrins (int opcode)
644 #if defined(TARGET_X86) || defined(TARGET_AMD64)
646 return "llvm.x86.sse2.min.pd";
648 return "llvm.x86.sse.min.ps";
650 return "llvm.x86.sse41.pminud";
652 return "llvm.x86.sse41.pminuw";
654 return "llvm.x86.sse2.pminu.b";
656 return "llvm.x86.sse2.pmins.w";
658 return "llvm.x86.sse2.max.pd";
660 return "llvm.x86.sse.max.ps";
662 return "llvm.x86.sse3.hadd.pd";
664 return "llvm.x86.sse3.hadd.ps";
666 return "llvm.x86.sse3.hsub.pd";
668 return "llvm.x86.sse3.hsub.ps";
670 return "llvm.x86.sse41.pmaxud";
672 return "llvm.x86.sse41.pmaxuw";
674 return "llvm.x86.sse2.pmaxu.b";
676 return "llvm.x86.sse3.addsub.ps";
678 return "llvm.x86.sse3.addsub.pd";
679 case OP_EXTRACT_MASK:
680 return "llvm.x86.sse2.pmovmskb.128";
683 return "llvm.x86.sse2.psrli.w";
686 return "llvm.x86.sse2.psrli.d";
689 return "llvm.x86.sse2.psrli.q";
692 return "llvm.x86.sse2.pslli.w";
695 return "llvm.x86.sse2.pslli.d";
698 return "llvm.x86.sse2.pslli.q";
701 return "llvm.x86.sse2.psrai.w";
704 return "llvm.x86.sse2.psrai.d";
706 return "llvm.x86.sse2.padds.b";
708 return "llvm.x86.sse2.padds.w";
710 return "llvm.x86.sse2.psubs.b";
712 return "llvm.x86.sse2.psubs.w";
713 case OP_PADDB_SAT_UN:
714 return "llvm.x86.sse2.paddus.b";
715 case OP_PADDW_SAT_UN:
716 return "llvm.x86.sse2.paddus.w";
717 case OP_PSUBB_SAT_UN:
718 return "llvm.x86.sse2.psubus.b";
719 case OP_PSUBW_SAT_UN:
720 return "llvm.x86.sse2.psubus.w";
722 return "llvm.x86.sse2.pavg.b";
724 return "llvm.x86.sse2.pavg.w";
726 return "llvm.x86.sse.sqrt.ps";
728 return "llvm.x86.sse2.sqrt.pd";
730 return "llvm.x86.sse.rsqrt.ps";
732 return "llvm.x86.sse.rcp.ps";
734 return "llvm.x86.sse2.cvtdq2pd";
736 return "llvm.x86.sse2.cvtdq2ps";
738 return "llvm.x86.sse2.cvtpd2dq";
740 return "llvm.x86.sse2.cvtps2dq";
742 return "llvm.x86.sse2.cvtpd2ps";
744 return "llvm.x86.sse2.cvtps2pd";
746 return "llvm.x86.sse2.cvttpd2dq";
748 return "llvm.x86.sse2.cvttps2dq";
750 return "llvm.x86.sse.cmp.ps";
752 return "llvm.x86.sse2.cmp.pd";
754 return "llvm.x86.sse2.packsswb.128";
756 return "llvm.x86.sse2.packssdw.128";
758 return "llvm.x86.sse2.packuswb.128";
760 return "llvm.x86.sse41.packusdw";
762 return "llvm.x86.sse2.pmulh.w";
763 case OP_PMULW_HIGH_UN:
764 return "llvm.x86.sse2.pmulhu.w";
767 g_assert_not_reached ();
773 simd_op_to_llvm_type (int opcode)
775 #if defined(TARGET_X86) || defined(TARGET_AMD64)
779 return type_to_simd_type (MONO_TYPE_R8);
782 return type_to_simd_type (MONO_TYPE_I8);
785 return type_to_simd_type (MONO_TYPE_I4);
790 return type_to_simd_type (MONO_TYPE_I2);
794 return type_to_simd_type (MONO_TYPE_I1);
796 return type_to_simd_type (MONO_TYPE_R4);
799 return type_to_simd_type (MONO_TYPE_I4);
803 return type_to_simd_type (MONO_TYPE_R8);
807 return type_to_simd_type (MONO_TYPE_R4);
808 case OP_EXTRACT_MASK:
809 return type_to_simd_type (MONO_TYPE_I1);
815 return type_to_simd_type (MONO_TYPE_R4);
818 return type_to_simd_type (MONO_TYPE_R8);
820 g_assert_not_reached ();
831 * Return the LLVM basic block corresponding to BB.
833 static LLVMBasicBlockRef
834 get_bb (EmitContext *ctx, MonoBasicBlock *bb)
838 if (ctx->bblocks [bb->block_num].bblock == NULL) {
839 if (bb->flags & BB_EXCEPTION_HANDLER) {
840 int clause_index = (mono_get_block_region_notry (ctx->cfg, bb->region) >> 8) - 1;
841 sprintf (bb_name, "EH_CLAUSE%d_BB%d", clause_index, bb->block_num);
843 sprintf (bb_name, "BB%d", bb->block_num);
846 ctx->bblocks [bb->block_num].bblock = LLVMAppendBasicBlock (ctx->lmethod, bb_name);
847 ctx->bblocks [bb->block_num].end_bblock = ctx->bblocks [bb->block_num].bblock;
850 return ctx->bblocks [bb->block_num].bblock;
856 * Return the last LLVM bblock corresponding to BB.
857 * This might not be equal to the bb returned by get_bb () since we need to generate
858 * multiple LLVM bblocks for a mono bblock to handle throwing exceptions.
860 static LLVMBasicBlockRef
861 get_end_bb (EmitContext *ctx, MonoBasicBlock *bb)
864 return ctx->bblocks [bb->block_num].end_bblock;
867 static LLVMBasicBlockRef
868 gen_bb (EmitContext *ctx, const char *prefix)
872 sprintf (bb_name, "%s%d", prefix, ++ ctx->ex_index);
873 return LLVMAppendBasicBlock (ctx->lmethod, bb_name);
879 * Return the target of the patch identified by TYPE and TARGET.
882 resolve_patch (MonoCompile *cfg, MonoJumpInfoType type, gconstpointer target)
886 memset (&ji, 0, sizeof (ji));
888 ji.data.target = target;
890 return mono_resolve_patch_target (cfg->method, cfg->domain, NULL, &ji, FALSE);
896 * Emit code to convert the LLVM value V to DTYPE.
899 convert_full (EmitContext *ctx, LLVMValueRef v, LLVMTypeRef dtype, gboolean is_unsigned)
901 LLVMTypeRef stype = LLVMTypeOf (v);
903 if (stype != dtype) {
904 gboolean ext = FALSE;
907 if (dtype == LLVMInt64Type () && (stype == LLVMInt32Type () || stype == LLVMInt16Type () || stype == LLVMInt8Type ()))
909 else if (dtype == LLVMInt32Type () && (stype == LLVMInt16Type () || stype == LLVMInt8Type ()))
911 else if (dtype == LLVMInt16Type () && (stype == LLVMInt8Type ()))
915 return is_unsigned ? LLVMBuildZExt (ctx->builder, v, dtype, "") : LLVMBuildSExt (ctx->builder, v, dtype, "");
917 if (dtype == LLVMDoubleType () && stype == LLVMFloatType ())
918 return LLVMBuildFPExt (ctx->builder, v, dtype, "");
921 if (stype == LLVMInt64Type () && (dtype == LLVMInt32Type () || dtype == LLVMInt16Type () || dtype == LLVMInt8Type ()))
922 return LLVMBuildTrunc (ctx->builder, v, dtype, "");
923 if (stype == LLVMInt32Type () && (dtype == LLVMInt16Type () || dtype == LLVMInt8Type ()))
924 return LLVMBuildTrunc (ctx->builder, v, dtype, "");
925 if (stype == LLVMInt16Type () && dtype == LLVMInt8Type ())
926 return LLVMBuildTrunc (ctx->builder, v, dtype, "");
927 if (stype == LLVMDoubleType () && dtype == LLVMFloatType ())
928 return LLVMBuildFPTrunc (ctx->builder, v, dtype, "");
930 if (LLVMGetTypeKind (stype) == LLVMPointerTypeKind && LLVMGetTypeKind (dtype) == LLVMPointerTypeKind)
931 return LLVMBuildBitCast (ctx->builder, v, dtype, "");
932 if (LLVMGetTypeKind (dtype) == LLVMPointerTypeKind)
933 return LLVMBuildIntToPtr (ctx->builder, v, dtype, "");
934 if (LLVMGetTypeKind (stype) == LLVMPointerTypeKind)
935 return LLVMBuildPtrToInt (ctx->builder, v, dtype, "");
937 #ifdef MONO_ARCH_SOFT_FLOAT
938 if (stype == LLVMInt32Type () && dtype == LLVMFloatType ())
939 return LLVMBuildBitCast (ctx->builder, v, dtype, "");
940 if (stype == LLVMInt32Type () && dtype == LLVMDoubleType ())
941 return LLVMBuildBitCast (ctx->builder, LLVMBuildZExt (ctx->builder, v, LLVMInt64Type (), ""), dtype, "");
944 if (LLVMGetTypeKind (stype) == LLVMVectorTypeKind && LLVMGetTypeKind (dtype) == LLVMVectorTypeKind)
945 return LLVMBuildBitCast (ctx->builder, v, dtype, "");
948 LLVMDumpValue (LLVMConstNull (dtype));
949 g_assert_not_reached ();
957 convert (EmitContext *ctx, LLVMValueRef v, LLVMTypeRef dtype)
959 return convert_full (ctx, v, dtype, FALSE);
963 * emit_volatile_load:
965 * If vreg is volatile, emit a load from its address.
968 emit_volatile_load (EmitContext *ctx, int vreg)
972 LLVMValueRef v = LLVMBuildLoad (ctx->builder, ctx->addresses [vreg], "");
973 t = ctx->vreg_cli_types [vreg];
974 if (t && !t->byref) {
976 * Might have to zero extend since llvm doesn't have
979 if (t->type == MONO_TYPE_U1 || t->type == MONO_TYPE_U2 || t->type == MONO_TYPE_CHAR || t->type == MONO_TYPE_BOOLEAN)
980 v = LLVMBuildZExt (ctx->builder, v, LLVMInt32Type (), "");
981 else if (t->type == MONO_TYPE_U8)
982 v = LLVMBuildZExt (ctx->builder, v, LLVMInt64Type (), "");
989 * emit_volatile_store:
991 * If VREG is volatile, emit a store from its value to its address.
994 emit_volatile_store (EmitContext *ctx, int vreg)
996 MonoInst *var = get_vreg_to_inst (ctx->cfg, vreg);
998 if (var && var->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT)) {
999 g_assert (ctx->addresses [vreg]);
1000 LLVMBuildStore (ctx->builder, convert (ctx, ctx->values [vreg], type_to_llvm_type (ctx, var->inst_vtype)), ctx->addresses [vreg]);
1006 * Maps parameter indexes in the original signature to parameter indexes
1007 * in the LLVM signature.
1010 /* The indexes of various special arguments in the LLVM signature */
1011 int vret_arg_pindex, this_arg_pindex, rgctx_arg_pindex, imt_arg_pindex;
1015 * sig_to_llvm_sig_full:
1017 * Return the LLVM signature corresponding to the mono signature SIG using the
1018 * calling convention information in CINFO. Return parameter mapping information in SINFO.
1021 sig_to_llvm_sig_full (EmitContext *ctx, MonoMethodSignature *sig, LLVMCallInfo *cinfo,
1024 LLVMTypeRef ret_type;
1025 LLVMTypeRef *param_types = NULL;
1027 int i, j, pindex, vret_arg_pindex = 0;
1029 gboolean vretaddr = FALSE;
1032 memset (sinfo, 0, sizeof (LLVMSigInfo));
1034 ret_type = type_to_llvm_type (ctx, sig->ret);
1035 CHECK_FAILURE (ctx);
1037 if (cinfo && cinfo->ret.storage == LLVMArgVtypeInReg) {
1038 /* LLVM models this by returning an aggregate value */
1039 if (cinfo->ret.pair_storage [0] == LLVMArgInIReg && cinfo->ret.pair_storage [1] == LLVMArgNone) {
1040 LLVMTypeRef members [2];
1042 members [0] = IntPtrType ();
1043 ret_type = LLVMStructType (members, 1, FALSE);
1045 g_assert_not_reached ();
1047 } else if (cinfo && MONO_TYPE_ISSTRUCT (sig->ret)) {
1048 g_assert (cinfo->ret.storage == LLVMArgVtypeRetAddr);
1050 ret_type = LLVMVoidType ();
1053 pindexes = g_new0 (int, sig->param_count);
1054 param_types = g_new0 (LLVMTypeRef, (sig->param_count * 2) + 3);
1056 if (cinfo && cinfo->rgctx_arg) {
1058 sinfo->rgctx_arg_pindex = pindex;
1059 param_types [pindex] = IntPtrType ();
1062 if (cinfo && cinfo->imt_arg) {
1064 sinfo->imt_arg_pindex = pindex;
1065 param_types [pindex] = IntPtrType ();
1069 /* Compute the index in the LLVM signature where the vret arg needs to be passed */
1070 vret_arg_pindex = pindex;
1071 if (cinfo->vret_arg_index == 1) {
1072 /* Add the slots consumed by the first argument */
1073 LLVMArgInfo *ainfo = &cinfo->args [0];
1074 switch (ainfo->storage) {
1075 case LLVMArgVtypeInReg:
1076 for (j = 0; j < 2; ++j) {
1077 if (ainfo->pair_storage [j] == LLVMArgInIReg)
1087 sinfo->vret_arg_pindex = vret_arg_pindex;
1090 if (vretaddr && vret_arg_pindex == pindex)
1091 param_types [pindex ++] = IntPtrType ();
1094 sinfo->this_arg_pindex = pindex;
1095 param_types [pindex ++] = IntPtrType ();
1097 if (vretaddr && vret_arg_pindex == pindex)
1098 param_types [pindex ++] = IntPtrType ();
1099 for (i = 0; i < sig->param_count; ++i) {
1100 if (vretaddr && vret_arg_pindex == pindex)
1101 param_types [pindex ++] = IntPtrType ();
1102 pindexes [i] = pindex;
1103 if (cinfo && cinfo->args [i + sig->hasthis].storage == LLVMArgVtypeInReg) {
1104 for (j = 0; j < 2; ++j) {
1105 switch (cinfo->args [i + sig->hasthis].pair_storage [j]) {
1107 param_types [pindex ++] = LLVMIntType (sizeof (gpointer) * 8);
1112 g_assert_not_reached ();
1115 } else if (cinfo && cinfo->args [i + sig->hasthis].storage == LLVMArgVtypeByVal) {
1116 param_types [pindex] = type_to_llvm_arg_type (ctx, sig->params [i]);
1117 CHECK_FAILURE (ctx);
1118 param_types [pindex] = LLVMPointerType (param_types [pindex], 0);
1121 param_types [pindex ++] = type_to_llvm_arg_type (ctx, sig->params [i]);
1124 if (vretaddr && vret_arg_pindex == pindex)
1125 param_types [pindex ++] = IntPtrType ();
1127 CHECK_FAILURE (ctx);
1129 res = LLVMFunctionType (ret_type, param_types, pindex, FALSE);
1130 g_free (param_types);
1133 sinfo->pindexes = pindexes;
1141 g_free (param_types);
1147 sig_to_llvm_sig (EmitContext *ctx, MonoMethodSignature *sig)
1149 return sig_to_llvm_sig_full (ctx, sig, NULL, NULL);
1153 * LLVMFunctionType1:
1155 * Create an LLVM function type from the arguments.
1157 static G_GNUC_UNUSED LLVMTypeRef
1158 LLVMFunctionType1(LLVMTypeRef ReturnType,
1159 LLVMTypeRef ParamType1,
1162 LLVMTypeRef param_types [1];
1164 param_types [0] = ParamType1;
1166 return LLVMFunctionType (ReturnType, param_types, 1, IsVarArg);
1170 * LLVMFunctionType2:
1172 * Create an LLVM function type from the arguments.
1174 static G_GNUC_UNUSED LLVMTypeRef
1175 LLVMFunctionType2(LLVMTypeRef ReturnType,
1176 LLVMTypeRef ParamType1,
1177 LLVMTypeRef ParamType2,
1180 LLVMTypeRef param_types [2];
1182 param_types [0] = ParamType1;
1183 param_types [1] = ParamType2;
1185 return LLVMFunctionType (ReturnType, param_types, 2, IsVarArg);
1189 * LLVMFunctionType3:
1191 * Create an LLVM function type from the arguments.
1193 static G_GNUC_UNUSED LLVMTypeRef
1194 LLVMFunctionType3(LLVMTypeRef ReturnType,
1195 LLVMTypeRef ParamType1,
1196 LLVMTypeRef ParamType2,
1197 LLVMTypeRef ParamType3,
1200 LLVMTypeRef param_types [3];
1202 param_types [0] = ParamType1;
1203 param_types [1] = ParamType2;
1204 param_types [2] = ParamType3;
1206 return LLVMFunctionType (ReturnType, param_types, 3, IsVarArg);
1212 * Create an LLVM builder and remember it so it can be freed later.
1214 static LLVMBuilderRef
1215 create_builder (EmitContext *ctx)
1217 LLVMBuilderRef builder = LLVMCreateBuilder ();
1219 ctx->builders = g_slist_prepend_mempool (ctx->cfg->mempool, ctx->builders, builder);
1225 get_plt_entry (EmitContext *ctx, LLVMTypeRef llvm_sig, MonoJumpInfoType type, gconstpointer data)
1227 char *callee_name = mono_aot_get_plt_symbol (type, data);
1228 LLVMValueRef callee;
1233 if (ctx->cfg->compile_aot)
1234 /* Add a patch so referenced wrappers can be compiled in full aot mode */
1235 mono_add_patch_info (ctx->cfg, 0, type, data);
1238 callee = g_hash_table_lookup (ctx->lmodule->plt_entries, callee_name);
1240 callee = LLVMAddFunction (ctx->module, callee_name, llvm_sig);
1242 LLVMSetVisibility (callee, LLVMHiddenVisibility);
1244 g_hash_table_insert (ctx->lmodule->plt_entries, (char*)callee_name, callee);
1251 get_handler_clause (MonoCompile *cfg, MonoBasicBlock *bb)
1253 MonoMethodHeader *header = cfg->header;
1254 MonoExceptionClause *clause;
1258 if (bb->region != -1 && MONO_BBLOCK_IS_IN_REGION (bb, MONO_REGION_TRY))
1259 return (bb->region >> 8) - 1;
1262 for (i = 0; i < header->num_clauses; ++i) {
1263 clause = &header->clauses [i];
1265 if (MONO_OFFSET_IN_CLAUSE (clause, bb->real_offset) && clause->flags == MONO_EXCEPTION_CLAUSE_NONE)
1273 set_metadata_flag (LLVMValueRef v, const char *flag_name)
1275 LLVMValueRef md_arg;
1278 md_kind = LLVMGetMDKindID (flag_name, strlen (flag_name));
1279 md_arg = LLVMMDString ("mono", 4);
1280 LLVMSetMetadata (v, md_kind, LLVMMDNode (&md_arg, 1));
1286 * Emit an LLVM call or invoke instruction depending on whenever the call is inside
1290 emit_call (EmitContext *ctx, MonoBasicBlock *bb, LLVMBuilderRef *builder_ref, LLVMValueRef callee, LLVMValueRef *args, int pindex)
1292 MonoCompile *cfg = ctx->cfg;
1294 LLVMBuilderRef builder = *builder_ref;
1297 clause_index = get_handler_clause (cfg, bb);
1299 if (clause_index != -1) {
1300 MonoMethodHeader *header = cfg->header;
1301 MonoExceptionClause *ec = &header->clauses [clause_index];
1302 MonoBasicBlock *tblock;
1303 LLVMBasicBlockRef ex_bb, noex_bb;
1306 * Have to use an invoke instead of a call, branching to the
1307 * handler bblock of the clause containing this bblock.
1310 g_assert (ec->flags == MONO_EXCEPTION_CLAUSE_NONE || ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY);
1312 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
1315 ctx->bblocks [tblock->block_num].invoke_target = TRUE;
1317 ex_bb = get_bb (ctx, tblock);
1319 noex_bb = gen_bb (ctx, "NOEX_BB");
1322 lcall = LLVMBuildInvoke (builder, callee, args, pindex, noex_bb, ex_bb, "");
1324 builder = ctx->builder = create_builder (ctx);
1325 LLVMPositionBuilderAtEnd (ctx->builder, noex_bb);
1327 ctx->bblocks [bb->block_num].end_bblock = noex_bb;
1329 lcall = LLVMBuildCall (builder, callee, args, pindex, "");
1330 ctx->builder = builder;
1333 *builder_ref = ctx->builder;
1339 emit_load (EmitContext *ctx, MonoBasicBlock *bb, LLVMBuilderRef *builder_ref, int size, LLVMValueRef addr, const char *name, gboolean is_faulting)
1341 const char *intrins_name;
1342 LLVMValueRef args [16], res;
1343 LLVMTypeRef addr_type;
1345 if (is_faulting && bb->region != -1) {
1347 * We handle loads which can fault by calling a mono specific intrinsic
1348 * using an invoke, so they are handled properly inside try blocks.
1349 * We can't use this outside clauses, since LLVM optimizes intrinsics which
1350 * are marked with IntrReadArgMem.
1354 intrins_name = "llvm.mono.load.i8.p0i8";
1357 intrins_name = "llvm.mono.load.i16.p0i16";
1360 intrins_name = "llvm.mono.load.i32.p0i32";
1363 intrins_name = "llvm.mono.load.i64.p0i64";
1366 g_assert_not_reached ();
1369 addr_type = LLVMTypeOf (addr);
1370 if (addr_type == LLVMPointerType (LLVMDoubleType (), 0) || addr_type == LLVMPointerType (LLVMFloatType (), 0))
1371 addr = LLVMBuildBitCast (*builder_ref, addr, LLVMPointerType (LLVMIntType (size * 8), 0), "");
1374 args [1] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
1375 args [2] = LLVMConstInt (LLVMInt1Type (), TRUE, FALSE);
1376 res = emit_call (ctx, bb, builder_ref, LLVMGetNamedFunction (ctx->module, intrins_name), args, 3);
1378 if (addr_type == LLVMPointerType (LLVMDoubleType (), 0))
1379 res = LLVMBuildBitCast (*builder_ref, res, LLVMDoubleType (), "");
1380 else if (addr_type == LLVMPointerType (LLVMFloatType (), 0))
1381 res = LLVMBuildBitCast (*builder_ref, res, LLVMFloatType (), "");
1388 * We emit volatile loads for loads which can fault, because otherwise
1389 * LLVM will generate invalid code when encountering a load from a
1392 res = mono_llvm_build_load (*builder_ref, addr, name, is_faulting);
1394 /* Mark it with a custom metadata */
1397 set_metadata_flag (res, "mono.faulting.load");
1405 emit_store (EmitContext *ctx, MonoBasicBlock *bb, LLVMBuilderRef *builder_ref, int size, LLVMValueRef value, LLVMValueRef addr, gboolean is_faulting)
1407 const char *intrins_name;
1408 LLVMValueRef args [16];
1410 if (is_faulting && bb->region != -1) {
1413 intrins_name = "llvm.mono.store.i8.p0i8";
1416 intrins_name = "llvm.mono.store.i16.p0i16";
1419 intrins_name = "llvm.mono.store.i32.p0i32";
1422 intrins_name = "llvm.mono.store.i64.p0i64";
1425 g_assert_not_reached ();
1428 if (LLVMTypeOf (value) == LLVMDoubleType () || LLVMTypeOf (value) == LLVMFloatType ()) {
1429 value = LLVMBuildBitCast (*builder_ref, value, LLVMIntType (size * 8), "");
1430 addr = LLVMBuildBitCast (*builder_ref, addr, LLVMPointerType (LLVMIntType (size * 8), 0), "");
1435 args [2] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
1436 args [3] = LLVMConstInt (LLVMInt1Type (), TRUE, FALSE);
1437 emit_call (ctx, bb, builder_ref, LLVMGetNamedFunction (ctx->module, intrins_name), args, 4);
1439 LLVMBuildStore (*builder_ref, value, addr);
1444 * emit_cond_system_exception:
1446 * Emit code to throw the exception EXC_TYPE if the condition CMP is false.
1447 * Might set the ctx exception.
1450 emit_cond_system_exception (EmitContext *ctx, MonoBasicBlock *bb, const char *exc_type, LLVMValueRef cmp)
1452 LLVMBasicBlockRef ex_bb, noex_bb;
1453 LLVMBuilderRef builder;
1454 MonoClass *exc_class;
1455 LLVMValueRef args [2];
1457 ex_bb = gen_bb (ctx, "EX_BB");
1458 noex_bb = gen_bb (ctx, "NOEX_BB");
1460 LLVMBuildCondBr (ctx->builder, cmp, ex_bb, noex_bb);
1462 exc_class = mono_class_from_name (mono_get_corlib (), "System", exc_type);
1463 g_assert (exc_class);
1465 /* Emit exception throwing code */
1466 builder = create_builder (ctx);
1467 LLVMPositionBuilderAtEnd (builder, ex_bb);
1469 if (!ctx->lmodule->throw_corlib_exception) {
1470 LLVMValueRef callee;
1472 const char *icall_name;
1474 MonoMethodSignature *throw_sig = mono_metadata_signature_alloc (mono_get_corlib (), 2);
1475 throw_sig->ret = &mono_get_void_class ()->byval_arg;
1476 throw_sig->params [0] = &mono_get_int32_class ()->byval_arg;
1477 icall_name = "llvm_throw_corlib_exception_abs_trampoline";
1478 throw_sig->params [1] = &mono_get_intptr_class ()->byval_arg;
1479 sig = sig_to_llvm_sig (ctx, throw_sig);
1481 if (ctx->cfg->compile_aot) {
1482 callee = get_plt_entry (ctx, sig, MONO_PATCH_INFO_INTERNAL_METHOD, icall_name);
1484 callee = LLVMAddFunction (ctx->module, "llvm_throw_corlib_exception_trampoline", sig_to_llvm_sig (ctx, throw_sig));
1487 * Differences between the LLVM/non-LLVM throw corlib exception trampoline:
1488 * - On x86, LLVM generated code doesn't push the arguments
1489 * - When using the LLVM mono branch, the trampoline takes the throw address as an
1490 * arguments, not a pc offset.
1492 LLVMAddGlobalMapping (ee, callee, resolve_patch (ctx->cfg, MONO_PATCH_INFO_INTERNAL_METHOD, icall_name));
1495 mono_memory_barrier ();
1496 ctx->lmodule->throw_corlib_exception = callee;
1500 args [0] = LLVMConstInt (LLVMInt32Type (), exc_class->type_token - MONO_TOKEN_TYPE_DEF, FALSE);
1502 args [0] = LLVMConstInt (LLVMInt32Type (), exc_class->type_token, FALSE);
1505 * The LLVM mono branch contains changes so a block address can be passed as an
1506 * argument to a call.
1508 args [1] = LLVMBuildPtrToInt (builder, LLVMBlockAddress (ctx->lmethod, ex_bb), IntPtrType (), "");
1509 emit_call (ctx, bb, &builder, ctx->lmodule->throw_corlib_exception, args, 2);
1511 LLVMBuildUnreachable (builder);
1513 ctx->builder = create_builder (ctx);
1514 LLVMPositionBuilderAtEnd (ctx->builder, noex_bb);
1516 ctx->bblocks [bb->block_num].end_bblock = noex_bb;
1523 * emit_reg_to_vtype:
1525 * Emit code to store the vtype in the registers REGS to the address ADDRESS.
1528 emit_reg_to_vtype (EmitContext *ctx, LLVMBuilderRef builder, MonoType *t, LLVMValueRef address, LLVMArgInfo *ainfo, LLVMValueRef *regs)
1532 size = get_vtype_size (t);
1534 if (MONO_CLASS_IS_SIMD (ctx->cfg, mono_class_from_mono_type (t))) {
1535 address = LLVMBuildBitCast (ctx->builder, address, LLVMPointerType (LLVMInt8Type (), 0), "");
1538 for (j = 0; j < 2; ++j) {
1539 LLVMValueRef index [2], addr;
1540 int part_size = size > sizeof (gpointer) ? sizeof (gpointer) : size;
1541 LLVMTypeRef part_type;
1543 if (ainfo->pair_storage [j] == LLVMArgNone)
1546 part_type = LLVMIntType (part_size * 8);
1547 if (MONO_CLASS_IS_SIMD (ctx->cfg, mono_class_from_mono_type (t))) {
1548 index [0] = LLVMConstInt (LLVMInt32Type (), j * sizeof (gpointer), FALSE);
1549 addr = LLVMBuildGEP (builder, address, index, 1, "");
1551 index [0] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
1552 index [1] = LLVMConstInt (LLVMInt32Type (), j * sizeof (gpointer), FALSE);
1553 addr = LLVMBuildGEP (builder, address, index, 2, "");
1555 switch (ainfo->pair_storage [j]) {
1557 LLVMBuildStore (builder, convert (ctx, regs [j], part_type), LLVMBuildBitCast (ctx->builder, addr, LLVMPointerType (part_type, 0), ""));
1562 g_assert_not_reached ();
1565 size -= sizeof (gpointer);
1570 * emit_vtype_to_reg:
1572 * Emit code to load a vtype at address ADDRESS into registers. Store the registers
1573 * into REGS, and the number of registers into NREGS.
1576 emit_vtype_to_reg (EmitContext *ctx, LLVMBuilderRef builder, MonoType *t, LLVMValueRef address, LLVMArgInfo *ainfo, LLVMValueRef *regs, guint32 *nregs)
1581 size = get_vtype_size (t);
1583 if (MONO_CLASS_IS_SIMD (ctx->cfg, mono_class_from_mono_type (t))) {
1584 address = LLVMBuildBitCast (ctx->builder, address, LLVMPointerType (LLVMInt8Type (), 0), "");
1587 for (j = 0; j < 2; ++j) {
1588 LLVMValueRef index [2], addr;
1589 int partsize = size > sizeof (gpointer) ? sizeof (gpointer) : size;
1591 if (ainfo->pair_storage [j] == LLVMArgNone)
1594 if (MONO_CLASS_IS_SIMD (ctx->cfg, mono_class_from_mono_type (t))) {
1595 index [0] = LLVMConstInt (LLVMInt32Type (), j * sizeof (gpointer), FALSE);
1596 addr = LLVMBuildGEP (builder, address, index, 1, "");
1598 index [0] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
1599 index [1] = LLVMConstInt (LLVMInt32Type (), j * sizeof (gpointer), FALSE);
1600 addr = LLVMBuildGEP (builder, address, index, 2, "");
1602 switch (ainfo->pair_storage [j]) {
1604 regs [pindex ++] = convert (ctx, LLVMBuildLoad (builder, LLVMBuildBitCast (ctx->builder, addr, LLVMPointerType (LLVMIntType (partsize * 8), 0), ""), ""), IntPtrType ());
1609 g_assert_not_reached ();
1611 size -= sizeof (gpointer);
1618 build_alloca (EmitContext *ctx, MonoType *t)
1620 MonoClass *k = mono_class_from_mono_type (t);
1623 if (MONO_CLASS_IS_SIMD (ctx->cfg, k))
1626 align = mono_class_min_align (k);
1628 /* Sometimes align is not a power of 2 */
1629 while (mono_is_power_of_two (align) == -1)
1633 * Have to place all alloca's at the end of the entry bb, since otherwise they would
1634 * get executed every time control reaches them.
1636 LLVMPositionBuilder (ctx->alloca_builder, get_bb (ctx, ctx->cfg->bb_entry), ctx->last_alloca);
1638 ctx->last_alloca = mono_llvm_build_alloca (ctx->alloca_builder, type_to_llvm_type (ctx, t), NULL, align, "");
1639 return ctx->last_alloca;
1643 * Put the global into the 'llvm.used' array to prevent it from being optimized away.
1646 mark_as_used (LLVMModuleRef module, LLVMValueRef global)
1648 LLVMTypeRef used_type;
1649 LLVMValueRef used, used_elem;
1651 used_type = LLVMArrayType (LLVMPointerType (LLVMInt8Type (), 0), 1);
1652 used = LLVMAddGlobal (module, used_type, "llvm.used");
1653 used_elem = LLVMConstBitCast (global, LLVMPointerType (LLVMInt8Type (), 0));
1654 LLVMSetInitializer (used, LLVMConstArray (LLVMPointerType (LLVMInt8Type (), 0), &used_elem, 1));
1655 LLVMSetLinkage (used, LLVMAppendingLinkage);
1656 LLVMSetSection (used, "llvm.metadata");
1662 * Emit code to load/convert arguments.
1665 emit_entry_bb (EmitContext *ctx, LLVMBuilderRef builder)
1668 MonoCompile *cfg = ctx->cfg;
1669 MonoMethodSignature *sig = ctx->sig;
1670 LLVMCallInfo *linfo = ctx->linfo;
1673 ctx->alloca_builder = create_builder (ctx);
1676 * Handle indirect/volatile variables by allocating memory for them
1677 * using 'alloca', and storing their address in a temporary.
1679 for (i = 0; i < cfg->num_varinfo; ++i) {
1680 MonoInst *var = cfg->varinfo [i];
1683 if (var->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) || MONO_TYPE_ISSTRUCT (var->inst_vtype)) {
1684 vtype = type_to_llvm_type (ctx, var->inst_vtype);
1685 CHECK_FAILURE (ctx);
1686 /* Could be already created by an OP_VPHI */
1687 if (!ctx->addresses [var->dreg])
1688 ctx->addresses [var->dreg] = build_alloca (ctx, var->inst_vtype);
1689 ctx->vreg_cli_types [var->dreg] = var->inst_vtype;
1693 for (i = 0; i < sig->param_count; ++i) {
1694 LLVMArgInfo *ainfo = &linfo->args [i + sig->hasthis];
1695 int reg = cfg->args [i + sig->hasthis]->dreg;
1697 if (ainfo->storage == LLVMArgVtypeInReg) {
1698 LLVMValueRef regs [2];
1701 * Emit code to save the argument from the registers to
1702 * the real argument.
1704 pindex = ctx->pindexes [i];
1705 regs [0] = LLVMGetParam (ctx->lmethod, pindex);
1706 if (ainfo->pair_storage [1] != LLVMArgNone)
1707 regs [1] = LLVMGetParam (ctx->lmethod, pindex + 1);
1711 ctx->addresses [reg] = build_alloca (ctx, sig->params [i]);
1713 emit_reg_to_vtype (ctx, builder, sig->params [i], ctx->addresses [reg], ainfo, regs);
1715 if (MONO_CLASS_IS_SIMD (ctx->cfg, mono_class_from_mono_type (sig->params [i]))) {
1716 /* Treat these as normal values */
1717 ctx->values [reg] = LLVMBuildLoad (builder, ctx->addresses [reg], "");
1719 } else if (ainfo->storage == LLVMArgVtypeByVal) {
1720 ctx->addresses [reg] = LLVMGetParam (ctx->lmethod, ctx->pindexes [i]);
1722 if (MONO_CLASS_IS_SIMD (ctx->cfg, mono_class_from_mono_type (sig->params [i]))) {
1723 /* Treat these as normal values */
1724 ctx->values [reg] = LLVMBuildLoad (builder, ctx->addresses [reg], "");
1727 ctx->values [reg] = convert (ctx, ctx->values [reg], llvm_type_to_stack_type (type_to_llvm_type (ctx, sig->params [i])));
1732 emit_volatile_store (ctx, cfg->vret_addr->dreg);
1734 emit_volatile_store (ctx, cfg->args [0]->dreg);
1735 for (i = 0; i < sig->param_count; ++i)
1736 if (!MONO_TYPE_ISSTRUCT (sig->params [i]))
1737 emit_volatile_store (ctx, cfg->args [i + sig->hasthis]->dreg);
1739 if (sig->hasthis && !cfg->rgctx_var && cfg->generic_sharing_context) {
1740 LLVMValueRef this_alloc;
1743 * The exception handling code needs the location where the this argument was
1744 * stored for gshared methods. We create a separate alloca to hold it, and mark it
1745 * with the "mono.this" custom metadata to tell llvm that it needs to save its
1746 * location into the LSDA.
1748 this_alloc = mono_llvm_build_alloca (builder, IntPtrType (), LLVMConstInt (LLVMInt32Type (), 1, FALSE), 0, "");
1749 /* This volatile store will keep the alloca alive */
1750 mono_llvm_build_store (builder, ctx->values [cfg->args [0]->dreg], this_alloc, TRUE);
1752 set_metadata_flag (this_alloc, "mono.this");
1755 if (cfg->rgctx_var) {
1756 LLVMValueRef rgctx_alloc, store;
1759 * We handle the rgctx arg similarly to the this pointer.
1761 g_assert (ctx->addresses [cfg->rgctx_var->dreg]);
1762 rgctx_alloc = ctx->addresses [cfg->rgctx_var->dreg];
1763 /* This volatile store will keep the alloca alive */
1764 store = mono_llvm_build_store (builder, ctx->rgctx_arg, rgctx_alloc, TRUE);
1766 set_metadata_flag (rgctx_alloc, "mono.this");
1770 * For finally clauses, create an indicator variable telling OP_ENDFINALLY whenever
1771 * it needs to continue normally, or return back to the exception handling system.
1773 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
1774 if (bb->region != -1 && (bb->flags & BB_EXCEPTION_HANDLER))
1775 g_hash_table_insert (ctx->region_to_handler, GUINT_TO_POINTER (mono_get_block_region_notry (cfg, bb->region)), bb);
1776 if (bb->region != -1 && (bb->flags & BB_EXCEPTION_HANDLER) && bb->in_scount == 0) {
1780 sprintf (name, "finally_ind_bb%d", bb->block_num);
1781 val = LLVMBuildAlloca (builder, LLVMInt32Type (), name);
1782 LLVMBuildStore (builder, LLVMConstInt (LLVMInt32Type (), 0, FALSE), val);
1784 ctx->bblocks [bb->block_num].finally_ind = val;
1787 * Create a new bblock which CALL_HANDLER can branch to, because branching to the
1788 * LLVM bblock containing the call to llvm.eh.selector causes problems for the
1789 * LLVM optimizer passes.
1791 sprintf (name, "BB_%d_CALL_HANDLER_TARGET", bb->block_num);
1792 ctx->bblocks [bb->block_num].call_handler_target_bb = LLVMAppendBasicBlock (ctx->lmethod, name);
1800 /* Have to export this for AOT */
1802 mono_personality (void);
1805 mono_personality (void)
1808 g_assert_not_reached ();
1812 process_call (EmitContext *ctx, MonoBasicBlock *bb, LLVMBuilderRef *builder_ref, MonoInst *ins)
1814 MonoCompile *cfg = ctx->cfg;
1815 LLVMModuleRef module = ctx->module;
1816 LLVMValueRef *values = ctx->values;
1817 LLVMValueRef *addresses = ctx->addresses;
1818 MonoCallInst *call = (MonoCallInst*)ins;
1819 MonoMethodSignature *sig = call->signature;
1820 LLVMValueRef callee = NULL, lcall;
1822 LLVMCallInfo *cinfo;
1826 LLVMTypeRef llvm_sig;
1828 gboolean virtual, calli;
1829 LLVMBuilderRef builder = *builder_ref;
1832 if (call->signature->call_convention != MONO_CALL_DEFAULT)
1833 LLVM_FAILURE (ctx, "non-default callconv");
1835 cinfo = call->cinfo;
1836 if (call->rgctx_arg_reg)
1837 cinfo->rgctx_arg = TRUE;
1838 if (call->imt_arg_reg)
1839 cinfo->imt_arg = TRUE;
1841 vretaddr = cinfo && cinfo->ret.storage == LLVMArgVtypeRetAddr;
1843 llvm_sig = sig_to_llvm_sig_full (ctx, sig, cinfo, &sinfo);
1844 CHECK_FAILURE (ctx);
1846 virtual = (ins->opcode == OP_VOIDCALL_MEMBASE || ins->opcode == OP_CALL_MEMBASE || ins->opcode == OP_VCALL_MEMBASE || ins->opcode == OP_LCALL_MEMBASE || ins->opcode == OP_FCALL_MEMBASE);
1847 calli = (ins->opcode == OP_VOIDCALL_REG || ins->opcode == OP_CALL_REG || ins->opcode == OP_VCALL_REG || ins->opcode == OP_LCALL_REG || ins->opcode == OP_FCALL_REG);
1849 /* FIXME: Avoid creating duplicate methods */
1851 if (ins->flags & MONO_INST_HAS_METHOD) {
1855 if (cfg->compile_aot) {
1856 callee = get_plt_entry (ctx, llvm_sig, MONO_PATCH_INFO_METHOD, call->method);
1858 LLVM_FAILURE (ctx, "can't encode patch");
1860 callee = LLVMAddFunction (module, "", llvm_sig);
1863 mono_create_jit_trampoline_in_domain (mono_domain_get (),
1865 LLVMAddGlobalMapping (ee, callee, target);
1870 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (call->fptr);
1876 memset (&ji, 0, sizeof (ji));
1877 ji.type = MONO_PATCH_INFO_JIT_ICALL_ADDR;
1878 ji.data.target = info->name;
1880 target = mono_resolve_patch_target (cfg->method, cfg->domain, NULL, &ji, FALSE);
1882 if (cfg->compile_aot) {
1883 callee = get_plt_entry (ctx, llvm_sig, MONO_PATCH_INFO_INTERNAL_METHOD, (char*)info->name);
1885 LLVM_FAILURE (ctx, "can't encode patch");
1887 callee = LLVMAddFunction (module, "", llvm_sig);
1888 target = (gpointer)mono_icall_get_wrapper (info);
1889 LLVMAddGlobalMapping (ee, callee, target);
1892 if (cfg->compile_aot) {
1894 if (cfg->abs_patches) {
1895 MonoJumpInfo *abs_ji = g_hash_table_lookup (cfg->abs_patches, call->fptr);
1897 callee = get_plt_entry (ctx, llvm_sig, abs_ji->type, abs_ji->data.target);
1899 LLVM_FAILURE (ctx, "can't encode patch");
1903 LLVM_FAILURE (ctx, "aot");
1905 callee = LLVMAddFunction (module, "", llvm_sig);
1907 if (cfg->abs_patches) {
1908 MonoJumpInfo *abs_ji = g_hash_table_lookup (cfg->abs_patches, call->fptr);
1911 * FIXME: Some trampolines might have
1912 * their own calling convention on some platforms.
1914 #ifndef TARGET_AMD64
1915 if (abs_ji->type == MONO_PATCH_INFO_MONITOR_ENTER || abs_ji->type == MONO_PATCH_INFO_MONITOR_EXIT || abs_ji->type == MONO_PATCH_INFO_GENERIC_CLASS_INIT)
1916 LLVM_FAILURE (ctx, "trampoline with own cconv");
1918 target = mono_resolve_patch_target (cfg->method, cfg->domain, NULL, abs_ji, FALSE);
1919 LLVMAddGlobalMapping (ee, callee, target);
1923 LLVMAddGlobalMapping (ee, callee, (gpointer)call->fptr);
1929 int size = sizeof (gpointer);
1932 g_assert (ins->inst_offset % size == 0);
1933 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset / size, FALSE);
1935 callee = convert (ctx, LLVMBuildLoad (builder, LLVMBuildGEP (builder, convert (ctx, values [ins->inst_basereg], LLVMPointerType (LLVMPointerType (IntPtrType (), 0), 0)), &index, 1, ""), ""), LLVMPointerType (llvm_sig, 0));
1937 callee = convert (ctx, values [ins->sreg1], LLVMPointerType (llvm_sig, 0));
1939 if (ins->flags & MONO_INST_HAS_METHOD) {
1944 * Collect and convert arguments
1946 nargs = (sig->param_count * 2) + sig->hasthis + vretaddr + call->rgctx_reg + call->imt_arg_reg;
1947 len = sizeof (LLVMValueRef) * nargs;
1948 args = alloca (len);
1949 memset (args, 0, len);
1950 l = call->out_ireg_args;
1952 if (call->rgctx_arg_reg) {
1953 g_assert (values [call->rgctx_arg_reg]);
1954 g_assert (sinfo.rgctx_arg_pindex < nargs);
1955 args [sinfo.rgctx_arg_pindex] = values [call->rgctx_arg_reg];
1957 if (call->imt_arg_reg) {
1958 g_assert (values [call->imt_arg_reg]);
1959 g_assert (sinfo.imt_arg_pindex < nargs);
1960 args [sinfo.imt_arg_pindex] = values [call->imt_arg_reg];
1964 if (!addresses [call->inst.dreg])
1965 addresses [call->inst.dreg] = build_alloca (ctx, sig->ret);
1966 g_assert (sinfo.vret_arg_pindex < nargs);
1967 args [sinfo.vret_arg_pindex] = LLVMBuildPtrToInt (builder, addresses [call->inst.dreg], IntPtrType (), "");
1970 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
1973 LLVMArgInfo *ainfo = call->cinfo ? &call->cinfo->args [i] : NULL;
1977 pindex = sinfo.this_arg_pindex;
1979 pindex = sinfo.pindexes [i - 1];
1981 pindex = sinfo.pindexes [i];
1984 regpair = (guint32)(gssize)(l->data);
1985 reg = regpair & 0xffffff;
1986 args [pindex] = values [reg];
1987 if (ainfo->storage == LLVMArgVtypeInReg) {
1989 LLVMValueRef regs [2];
1994 g_assert (addresses [reg]);
1996 emit_vtype_to_reg (ctx, builder, sig->params [i - sig->hasthis], addresses [reg], ainfo, regs, &nregs);
1997 for (j = 0; j < nregs; ++j)
1998 args [pindex ++] = regs [j];
2001 // FIXME: Get rid of the VMOVE
2002 } else if (ainfo->storage == LLVMArgVtypeByVal) {
2003 g_assert (addresses [reg]);
2004 args [pindex] = addresses [reg];
2006 g_assert (args [pindex]);
2007 if (i == 0 && sig->hasthis)
2008 args [pindex] = convert (ctx, args [pindex], IntPtrType ());
2010 args [pindex] = convert (ctx, args [pindex], type_to_llvm_arg_type (ctx, sig->params [i - sig->hasthis]));
2016 // FIXME: Align call sites
2022 lcall = emit_call (ctx, bb, &builder, callee, args, LLVMCountParamTypes (llvm_sig));
2024 #ifdef LLVM_MONO_BRANCH
2026 * Modify cconv and parameter attributes to pass rgctx/imt correctly.
2028 #if defined(MONO_ARCH_IMT_REG) && defined(MONO_ARCH_RGCTX_REG)
2029 g_assert (MONO_ARCH_IMT_REG == MONO_ARCH_RGCTX_REG);
2031 /* The two can't be used together, so use only one LLVM calling conv to pass them */
2032 g_assert (!(call->rgctx_arg_reg && call->imt_arg_reg));
2034 LLVMSetInstructionCallConv (lcall, LLVMMono1CallConv);
2036 if (call->rgctx_arg_reg)
2037 LLVMAddInstrAttribute (lcall, 1 + sinfo.rgctx_arg_pindex, LLVMInRegAttribute);
2038 if (call->imt_arg_reg)
2039 LLVMAddInstrAttribute (lcall, 1 + sinfo.imt_arg_pindex, LLVMInRegAttribute);
2042 /* Add byval attributes if needed */
2043 for (i = 0; i < sig->param_count; ++i) {
2044 LLVMArgInfo *ainfo = call->cinfo ? &call->cinfo->args [i + sig->hasthis] : NULL;
2046 if (ainfo && ainfo->storage == LLVMArgVtypeByVal) {
2047 LLVMAddInstrAttribute (lcall, 1 + sinfo.pindexes [i], LLVMByValAttribute);
2052 * Convert the result
2054 if (cinfo && cinfo->ret.storage == LLVMArgVtypeInReg) {
2055 LLVMValueRef regs [2];
2057 if (!addresses [ins->dreg])
2058 addresses [ins->dreg] = build_alloca (ctx, sig->ret);
2060 regs [0] = LLVMBuildExtractValue (builder, lcall, 0, "");
2061 if (cinfo->ret.pair_storage [1] != LLVMArgNone)
2062 regs [1] = LLVMBuildExtractValue (builder, lcall, 1, "");
2064 emit_reg_to_vtype (ctx, builder, sig->ret, addresses [ins->dreg], &cinfo->ret, regs);
2065 } else if (sig->ret->type != MONO_TYPE_VOID && !vretaddr) {
2066 /* If the method returns an unsigned value, need to zext it */
2068 values [ins->dreg] = convert_full (ctx, lcall, llvm_type_to_stack_type (type_to_llvm_type (ctx, sig->ret)), type_is_unsigned (ctx, sig->ret));
2071 *builder_ref = ctx->builder;
2073 g_free (sinfo.pindexes);
2081 process_bb (EmitContext *ctx, MonoBasicBlock *bb)
2083 MonoCompile *cfg = ctx->cfg;
2084 MonoMethodSignature *sig = ctx->sig;
2085 LLVMValueRef method = ctx->lmethod;
2086 LLVMValueRef *values = ctx->values;
2087 LLVMValueRef *addresses = ctx->addresses;
2089 LLVMCallInfo *linfo = ctx->linfo;
2090 LLVMModuleRef module = ctx->module;
2091 BBInfo *bblocks = ctx->bblocks;
2093 LLVMBasicBlockRef cbb;
2094 LLVMBuilderRef builder, starting_builder;
2095 gboolean has_terminator;
2097 LLVMValueRef lhs, rhs;
2100 cbb = get_bb (ctx, bb);
2101 builder = create_builder (ctx);
2102 ctx->builder = builder;
2103 LLVMPositionBuilderAtEnd (builder, cbb);
2105 if (bb == cfg->bb_entry)
2106 emit_entry_bb (ctx, builder);
2107 CHECK_FAILURE (ctx);
2109 if (bb->flags & BB_EXCEPTION_HANDLER) {
2111 LLVMValueRef personality;
2112 LLVMBasicBlockRef target_bb;
2114 static gint32 mapping_inited;
2115 static int ti_generator;
2118 LLVMValueRef type_info;
2121 if (!bblocks [bb->block_num].invoke_target) {
2123 * LLVM asserts if llvm.eh.selector is called from a bblock which
2124 * doesn't have an invoke pointing at it.
2125 * Update: LLVM no longer asserts, but some tests in exceptions.exe now fail.
2127 LLVM_FAILURE (ctx, "handler without invokes");
2130 // <resultval> = landingpad <somety> personality <type> <pers_fn> <clause>+
2132 if (cfg->compile_aot) {
2133 /* Use a dummy personality function */
2134 personality = LLVMGetNamedFunction (module, "mono_aot_personality");
2135 g_assert (personality);
2137 personality = LLVMGetNamedFunction (module, "mono_personality");
2138 if (InterlockedCompareExchange (&mapping_inited, 1, 0) == 0)
2139 LLVMAddGlobalMapping (ee, personality, mono_personality);
2142 i8ptr = LLVMPointerType (LLVMInt8Type (), 0);
2144 clause_index = (mono_get_block_region_notry (cfg, bb->region) >> 8) - 1;
2147 * Create the type info
2149 sprintf (ti_name, "type_info_%d", ti_generator);
2152 if (cfg->compile_aot) {
2153 /* decode_eh_frame () in aot-runtime.c will decode this */
2154 type_info = LLVMAddGlobal (module, LLVMInt32Type (), ti_name);
2155 LLVMSetInitializer (type_info, LLVMConstInt (LLVMInt32Type (), clause_index, FALSE));
2157 LLVMSetLinkage (type_info, LLVMPrivateLinkage);
2158 LLVMSetVisibility (type_info, LLVMHiddenVisibility);
2161 * Enabling this causes llc to crash:
2162 * http://llvm.org/bugs/show_bug.cgi?id=6102
2164 //LLVM_FAILURE (ctx, "aot+clauses");
2166 // test_0_invalid_unbox_arrays () fails
2167 LLVM_FAILURE (ctx, "aot+clauses");
2171 * After the cfg mempool is freed, the type info will point to stale memory,
2172 * but this is not a problem, since we decode it once in exception_cb during
2175 ti = mono_mempool_alloc (cfg->mempool, sizeof (gint32));
2176 *(gint32*)ti = clause_index;
2178 type_info = LLVMAddGlobal (module, i8ptr, ti_name);
2180 LLVMAddGlobalMapping (ee, type_info, ti);
2184 LLVMTypeRef members [2], ret_type;
2185 LLVMValueRef landing_pad;
2187 members [0] = i8ptr;
2188 members [1] = LLVMInt32Type ();
2189 ret_type = LLVMStructType (members, 2, FALSE);
2191 landing_pad = LLVMBuildLandingPad (builder, ret_type, personality, 1, "");
2192 LLVMAddClause (landing_pad, type_info);
2194 /* Store the exception into the exvar */
2195 if (bb->in_scount == 1) {
2196 g_assert (bb->in_scount == 1);
2197 exvar = bb->in_stack [0];
2199 // FIXME: This is shared with filter clauses ?
2200 g_assert (!values [exvar->dreg]);
2202 values [exvar->dreg] = LLVMBuildExtractValue (builder, landing_pad, 0, "ex_obj");
2203 emit_volatile_store (ctx, exvar->dreg);
2207 /* Start a new bblock which CALL_HANDLER can branch to */
2208 target_bb = bblocks [bb->block_num].call_handler_target_bb;
2210 LLVMBuildBr (builder, target_bb);
2212 ctx->builder = builder = create_builder (ctx);
2213 LLVMPositionBuilderAtEnd (ctx->builder, target_bb);
2215 ctx->bblocks [bb->block_num].end_bblock = target_bb;
2219 has_terminator = FALSE;
2220 starting_builder = builder;
2221 for (ins = bb->code; ins; ins = ins->next) {
2222 const char *spec = LLVM_INS_INFO (ins->opcode);
2224 char dname_buf [128];
2227 if (nins > 5000 && builder == starting_builder) {
2228 /* some steps in llc are non-linear in the size of basic blocks, see #5714 */
2229 LLVM_FAILURE (ctx, "basic block too long");
2233 /* There could be instructions after a terminator, skip them */
2236 if (spec [MONO_INST_DEST] != ' ' && !MONO_IS_STORE_MEMBASE (ins)) {
2237 sprintf (dname_buf, "t%d", ins->dreg);
2241 if (spec [MONO_INST_SRC1] != ' ' && spec [MONO_INST_SRC1] != 'v') {
2242 MonoInst *var = get_vreg_to_inst (cfg, ins->sreg1);
2244 if (var && var->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT)) {
2245 lhs = emit_volatile_load (ctx, ins->sreg1);
2247 /* It is ok for SETRET to have an uninitialized argument */
2248 if (!values [ins->sreg1] && ins->opcode != OP_SETRET)
2249 LLVM_FAILURE (ctx, "sreg1");
2250 lhs = values [ins->sreg1];
2256 if (spec [MONO_INST_SRC2] != ' ' && spec [MONO_INST_SRC2] != ' ') {
2257 MonoInst *var = get_vreg_to_inst (cfg, ins->sreg2);
2258 if (var && var->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT)) {
2259 rhs = emit_volatile_load (ctx, ins->sreg2);
2261 if (!values [ins->sreg2])
2262 LLVM_FAILURE (ctx, "sreg2");
2263 rhs = values [ins->sreg2];
2269 //mono_print_ins (ins);
2270 switch (ins->opcode) {
2273 case OP_LIVERANGE_START:
2274 case OP_LIVERANGE_END:
2277 values [ins->dreg] = LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE);
2280 #if SIZEOF_VOID_P == 4
2281 values [ins->dreg] = LLVMConstInt (LLVMInt64Type (), GET_LONG_IMM (ins), FALSE);
2283 values [ins->dreg] = LLVMConstInt (LLVMInt64Type (), (gint64)ins->inst_c0, FALSE);
2287 values [ins->dreg] = LLVMConstReal (LLVMDoubleType (), *(double*)ins->inst_p0);
2290 values [ins->dreg] = LLVMConstFPExt (LLVMConstReal (LLVMFloatType (), *(float*)ins->inst_p0), LLVMDoubleType ());
2293 LLVMBuildBr (builder, get_bb (ctx, ins->inst_target_bb));
2294 has_terminator = TRUE;
2300 LLVMBasicBlockRef new_bb;
2301 LLVMBuilderRef new_builder;
2303 // The default branch is already handled
2304 // FIXME: Handle it here
2306 /* Start new bblock */
2307 sprintf (bb_name, "SWITCH_DEFAULT_BB%d", ctx->default_index ++);
2308 new_bb = LLVMAppendBasicBlock (ctx->lmethod, bb_name);
2310 lhs = convert (ctx, lhs, LLVMInt32Type ());
2311 v = LLVMBuildSwitch (builder, lhs, new_bb, GPOINTER_TO_UINT (ins->klass));
2312 for (i = 0; i < GPOINTER_TO_UINT (ins->klass); ++i) {
2313 MonoBasicBlock *target_bb = ins->inst_many_bb [i];
2315 LLVMAddCase (v, LLVMConstInt (LLVMInt32Type (), i, FALSE), get_bb (ctx, target_bb));
2318 new_builder = create_builder (ctx);
2319 LLVMPositionBuilderAtEnd (new_builder, new_bb);
2320 LLVMBuildUnreachable (new_builder);
2322 has_terminator = TRUE;
2323 g_assert (!ins->next);
2329 if (linfo->ret.storage == LLVMArgVtypeInReg) {
2330 LLVMTypeRef ret_type = LLVMGetReturnType (LLVMGetElementType (LLVMTypeOf (method)));
2331 LLVMValueRef part1, retval;
2334 size = get_vtype_size (sig->ret);
2336 g_assert (addresses [ins->sreg1]);
2338 g_assert (linfo->ret.pair_storage [0] == LLVMArgInIReg);
2339 g_assert (linfo->ret.pair_storage [1] == LLVMArgNone);
2341 part1 = convert (ctx, LLVMBuildLoad (builder, LLVMBuildBitCast (builder, addresses [ins->sreg1], LLVMPointerType (LLVMIntType (size * 8), 0), ""), ""), IntPtrType ());
2343 retval = LLVMBuildInsertValue (builder, LLVMGetUndef (ret_type), part1, 0, "");
2345 LLVMBuildRet (builder, retval);
2349 if (linfo->ret.storage == LLVMArgVtypeRetAddr) {
2350 LLVMBuildRetVoid (builder);
2354 if (!lhs || ctx->is_dead [ins->sreg1]) {
2356 * The method did not set its return value, probably because it
2357 * ends with a throw.
2360 LLVMBuildRetVoid (builder);
2362 LLVMBuildRet (builder, LLVMConstNull (type_to_llvm_type (ctx, sig->ret)));
2364 LLVMBuildRet (builder, convert (ctx, lhs, type_to_llvm_type (ctx, sig->ret)));
2366 has_terminator = TRUE;
2372 case OP_ICOMPARE_IMM:
2373 case OP_LCOMPARE_IMM:
2374 case OP_COMPARE_IMM: {
2378 if (ins->next->opcode == OP_NOP)
2381 if (ins->next->opcode == OP_BR)
2382 /* The comparison result is not needed */
2385 rel = mono_opcode_to_cond (ins->next->opcode);
2387 if (ins->opcode == OP_ICOMPARE_IMM) {
2388 lhs = convert (ctx, lhs, LLVMInt32Type ());
2389 rhs = LLVMConstInt (LLVMInt32Type (), ins->inst_imm, FALSE);
2391 if (ins->opcode == OP_LCOMPARE_IMM) {
2392 lhs = convert (ctx, lhs, LLVMInt64Type ());
2393 rhs = LLVMConstInt (LLVMInt64Type (), GET_LONG_IMM (ins), FALSE);
2395 if (ins->opcode == OP_LCOMPARE) {
2396 lhs = convert (ctx, lhs, LLVMInt64Type ());
2397 rhs = convert (ctx, rhs, LLVMInt64Type ());
2399 if (ins->opcode == OP_ICOMPARE) {
2400 lhs = convert (ctx, lhs, LLVMInt32Type ());
2401 rhs = convert (ctx, rhs, LLVMInt32Type ());
2405 if (LLVMGetTypeKind (LLVMTypeOf (lhs)) == LLVMPointerTypeKind)
2406 rhs = convert (ctx, rhs, LLVMTypeOf (lhs));
2407 else if (LLVMGetTypeKind (LLVMTypeOf (rhs)) == LLVMPointerTypeKind)
2408 lhs = convert (ctx, lhs, LLVMTypeOf (rhs));
2411 /* We use COMPARE+SETcc/Bcc, llvm uses SETcc+br cond */
2412 if (ins->opcode == OP_FCOMPARE)
2413 cmp = LLVMBuildFCmp (builder, fpcond_to_llvm_cond [rel], convert (ctx, lhs, LLVMDoubleType ()), convert (ctx, rhs, LLVMDoubleType ()), "");
2414 else if (ins->opcode == OP_COMPARE_IMM)
2415 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], convert (ctx, lhs, IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_imm, FALSE), "");
2416 else if (ins->opcode == OP_LCOMPARE_IMM) {
2417 if (SIZEOF_REGISTER == 4 && COMPILE_LLVM (cfg)) {
2418 /* The immediate is encoded in two fields */
2419 guint64 l = ((guint64)(guint32)ins->inst_offset << 32) | ((guint32)ins->inst_imm);
2420 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], convert (ctx, lhs, LLVMInt64Type ()), LLVMConstInt (LLVMInt64Type (), l, FALSE), "");
2422 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], convert (ctx, lhs, LLVMInt64Type ()), LLVMConstInt (LLVMInt64Type (), ins->inst_imm, FALSE), "");
2425 else if (ins->opcode == OP_COMPARE)
2426 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], convert (ctx, lhs, IntPtrType ()), convert (ctx, rhs, IntPtrType ()), "");
2428 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], lhs, rhs, "");
2430 if (MONO_IS_COND_BRANCH_OP (ins->next)) {
2431 if (ins->next->inst_true_bb == ins->next->inst_false_bb) {
2433 * If the target bb contains PHI instructions, LLVM requires
2434 * two PHI entries for this bblock, while we only generate one.
2435 * So convert this to an unconditional bblock. (bxc #171).
2437 LLVMBuildBr (builder, get_bb (ctx, ins->next->inst_true_bb));
2439 LLVMBuildCondBr (builder, cmp, get_bb (ctx, ins->next->inst_true_bb), get_bb (ctx, ins->next->inst_false_bb));
2441 has_terminator = TRUE;
2442 } else if (MONO_IS_SETCC (ins->next)) {
2443 sprintf (dname_buf, "t%d", ins->next->dreg);
2445 values [ins->next->dreg] = LLVMBuildZExt (builder, cmp, LLVMInt32Type (), dname);
2447 /* Add stores for volatile variables */
2448 emit_volatile_store (ctx, ins->next->dreg);
2449 } else if (MONO_IS_COND_EXC (ins->next)) {
2450 emit_cond_system_exception (ctx, bb, ins->next->inst_p1, cmp);
2451 CHECK_FAILURE (ctx);
2452 builder = ctx->builder;
2454 LLVM_FAILURE (ctx, "next");
2468 rel = mono_opcode_to_cond (ins->opcode);
2470 cmp = LLVMBuildFCmp (builder, fpcond_to_llvm_cond [rel], convert (ctx, lhs, LLVMDoubleType ()), convert (ctx, rhs, LLVMDoubleType ()), "");
2471 values [ins->dreg] = LLVMBuildZExt (builder, cmp, LLVMInt32Type (), dname);
2479 gboolean empty = TRUE;
2481 /* Check that all input bblocks really branch to us */
2482 for (i = 0; i < bb->in_count; ++i) {
2483 if (bb->in_bb [i]->last_ins && bb->in_bb [i]->last_ins->opcode == OP_NOT_REACHED)
2484 ins->inst_phi_args [i + 1] = -1;
2490 /* LLVM doesn't like phi instructions with zero operands */
2491 ctx->is_dead [ins->dreg] = TRUE;
2495 /* Created earlier, insert it now */
2496 LLVMInsertIntoBuilder (builder, values [ins->dreg]);
2498 for (i = 0; i < ins->inst_phi_args [0]; i++) {
2499 int sreg1 = ins->inst_phi_args [i + 1];
2503 * Count the number of times the incoming bblock branches to us,
2504 * since llvm requires a separate entry for each.
2506 if (bb->in_bb [i]->last_ins && bb->in_bb [i]->last_ins->opcode == OP_SWITCH) {
2507 MonoInst *switch_ins = bb->in_bb [i]->last_ins;
2510 for (j = 0; j < GPOINTER_TO_UINT (switch_ins->klass); ++j) {
2511 if (switch_ins->inst_many_bb [j] == bb)
2518 /* Remember for later */
2519 for (j = 0; j < count; ++j) {
2520 PhiNode *node = mono_mempool_alloc0 (ctx->mempool, sizeof (PhiNode));
2523 node->in_bb = bb->in_bb [i];
2525 bblocks [bb->in_bb [i]->block_num].phi_nodes = g_slist_prepend_mempool (ctx->mempool, bblocks [bb->in_bb [i]->block_num].phi_nodes, node);
2535 values [ins->dreg] = lhs;
2538 MonoInst *var = get_vreg_to_inst (cfg, ins->dreg);
2541 values [ins->dreg] = lhs;
2543 if (var && var->klass->byval_arg.type == MONO_TYPE_R4) {
2545 * This is added by the spilling pass in case of the JIT,
2546 * but we have to do it ourselves.
2548 values [ins->dreg] = convert (ctx, values [ins->dreg], LLVMFloatType ());
2582 lhs = convert (ctx, lhs, regtype_to_llvm_type (spec [MONO_INST_DEST]));
2583 rhs = convert (ctx, rhs, regtype_to_llvm_type (spec [MONO_INST_DEST]));
2585 switch (ins->opcode) {
2588 values [ins->dreg] = LLVMBuildAdd (builder, lhs, rhs, dname);
2592 values [ins->dreg] = LLVMBuildSub (builder, lhs, rhs, dname);
2596 values [ins->dreg] = LLVMBuildMul (builder, lhs, rhs, dname);
2600 values [ins->dreg] = LLVMBuildSRem (builder, lhs, rhs, dname);
2604 values [ins->dreg] = LLVMBuildURem (builder, lhs, rhs, dname);
2608 values [ins->dreg] = LLVMBuildSDiv (builder, lhs, rhs, dname);
2612 values [ins->dreg] = LLVMBuildUDiv (builder, lhs, rhs, dname);
2615 values [ins->dreg] = LLVMBuildFDiv (builder, lhs, rhs, dname);
2619 values [ins->dreg] = LLVMBuildAnd (builder, lhs, rhs, dname);
2623 values [ins->dreg] = LLVMBuildOr (builder, lhs, rhs, dname);
2627 values [ins->dreg] = LLVMBuildXor (builder, lhs, rhs, dname);
2631 values [ins->dreg] = LLVMBuildShl (builder, lhs, rhs, dname);
2635 values [ins->dreg] = LLVMBuildAShr (builder, lhs, rhs, dname);
2639 values [ins->dreg] = LLVMBuildLShr (builder, lhs, rhs, dname);
2643 values [ins->dreg] = LLVMBuildFAdd (builder, lhs, rhs, dname);
2646 values [ins->dreg] = LLVMBuildFSub (builder, lhs, rhs, dname);
2649 values [ins->dreg] = LLVMBuildFMul (builder, lhs, rhs, dname);
2653 g_assert_not_reached ();
2660 case OP_IREM_UN_IMM:
2662 case OP_IDIV_UN_IMM:
2668 case OP_ISHR_UN_IMM:
2677 case OP_LSHR_UN_IMM:
2685 if (spec [MONO_INST_SRC1] == 'l') {
2686 imm = LLVMConstInt (LLVMInt64Type (), GET_LONG_IMM (ins), FALSE);
2688 imm = LLVMConstInt (LLVMInt32Type (), ins->inst_imm, FALSE);
2691 #if SIZEOF_VOID_P == 4
2692 if (ins->opcode == OP_LSHL_IMM || ins->opcode == OP_LSHR_IMM || ins->opcode == OP_LSHR_UN_IMM)
2693 imm = LLVMConstInt (LLVMInt32Type (), ins->inst_imm, FALSE);
2696 if (LLVMGetTypeKind (LLVMTypeOf (lhs)) == LLVMPointerTypeKind)
2697 lhs = convert (ctx, lhs, IntPtrType ());
2698 imm = convert (ctx, imm, LLVMTypeOf (lhs));
2699 switch (ins->opcode) {
2703 values [ins->dreg] = LLVMBuildAdd (builder, lhs, imm, dname);
2707 values [ins->dreg] = LLVMBuildSub (builder, lhs, imm, dname);
2711 values [ins->dreg] = LLVMBuildMul (builder, lhs, imm, dname);
2715 values [ins->dreg] = LLVMBuildSDiv (builder, lhs, imm, dname);
2717 case OP_IDIV_UN_IMM:
2718 case OP_LDIV_UN_IMM:
2719 values [ins->dreg] = LLVMBuildUDiv (builder, lhs, imm, dname);
2723 values [ins->dreg] = LLVMBuildSRem (builder, lhs, imm, dname);
2725 case OP_IREM_UN_IMM:
2726 values [ins->dreg] = LLVMBuildURem (builder, lhs, imm, dname);
2731 values [ins->dreg] = LLVMBuildAnd (builder, lhs, imm, dname);
2735 values [ins->dreg] = LLVMBuildOr (builder, lhs, imm, dname);
2739 values [ins->dreg] = LLVMBuildXor (builder, lhs, imm, dname);
2744 values [ins->dreg] = LLVMBuildShl (builder, lhs, imm, dname);
2749 values [ins->dreg] = LLVMBuildAShr (builder, lhs, imm, dname);
2751 case OP_ISHR_UN_IMM:
2752 /* This is used to implement conv.u4, so the lhs could be an i8 */
2753 lhs = convert (ctx, lhs, LLVMInt32Type ());
2754 imm = convert (ctx, imm, LLVMInt32Type ());
2755 values [ins->dreg] = LLVMBuildLShr (builder, lhs, imm, dname);
2757 case OP_LSHR_UN_IMM:
2758 values [ins->dreg] = LLVMBuildLShr (builder, lhs, imm, dname);
2761 g_assert_not_reached ();
2766 values [ins->dreg] = LLVMBuildSub (builder, LLVMConstInt (LLVMInt32Type (), 0, FALSE), convert (ctx, lhs, LLVMInt32Type ()), dname);
2769 values [ins->dreg] = LLVMBuildSub (builder, LLVMConstInt (LLVMInt64Type (), 0, FALSE), lhs, dname);
2772 lhs = convert (ctx, lhs, LLVMDoubleType ());
2773 values [ins->dreg] = LLVMBuildFSub (builder, LLVMConstReal (LLVMDoubleType (), 0.0), lhs, dname);
2776 guint32 v = 0xffffffff;
2777 values [ins->dreg] = LLVMBuildXor (builder, LLVMConstInt (LLVMInt32Type (), v, FALSE), convert (ctx, lhs, LLVMInt32Type ()), dname);
2781 guint64 v = 0xffffffffffffffffLL;
2782 values [ins->dreg] = LLVMBuildXor (builder, LLVMConstInt (LLVMInt64Type (), v, FALSE), lhs, dname);
2785 #if defined(TARGET_X86) || defined(TARGET_AMD64)
2787 LLVMValueRef v1, v2;
2789 v1 = LLVMBuildMul (builder, convert (ctx, rhs, IntPtrType ()), LLVMConstInt (IntPtrType (), (1 << ins->backend.shift_amount), FALSE), "");
2790 v2 = LLVMBuildAdd (builder, convert (ctx, lhs, IntPtrType ()), v1, "");
2791 values [ins->dreg] = LLVMBuildAdd (builder, v2, LLVMConstInt (IntPtrType (), ins->inst_imm, FALSE), dname);
2796 case OP_ICONV_TO_I1:
2797 case OP_ICONV_TO_I2:
2798 case OP_ICONV_TO_I4:
2799 case OP_ICONV_TO_U1:
2800 case OP_ICONV_TO_U2:
2801 case OP_ICONV_TO_U4:
2802 case OP_LCONV_TO_I1:
2803 case OP_LCONV_TO_I2:
2804 case OP_LCONV_TO_U1:
2805 case OP_LCONV_TO_U2:
2806 case OP_LCONV_TO_U4: {
2809 sign = (ins->opcode == OP_ICONV_TO_I1) || (ins->opcode == OP_ICONV_TO_I2) || (ins->opcode == OP_ICONV_TO_I4) || (ins->opcode == OP_LCONV_TO_I1) || (ins->opcode == OP_LCONV_TO_I2);
2811 /* Have to do two casts since our vregs have type int */
2812 v = LLVMBuildTrunc (builder, lhs, op_to_llvm_type (ins->opcode), "");
2814 values [ins->dreg] = LLVMBuildSExt (builder, v, LLVMInt32Type (), dname);
2816 values [ins->dreg] = LLVMBuildZExt (builder, v, LLVMInt32Type (), dname);
2819 case OP_ICONV_TO_I8:
2820 values [ins->dreg] = LLVMBuildSExt (builder, lhs, LLVMInt64Type (), dname);
2822 case OP_ICONV_TO_U8:
2823 values [ins->dreg] = LLVMBuildZExt (builder, lhs, LLVMInt64Type (), dname);
2825 case OP_FCONV_TO_I4:
2826 values [ins->dreg] = LLVMBuildFPToSI (builder, lhs, LLVMInt32Type (), dname);
2828 case OP_FCONV_TO_I1:
2829 values [ins->dreg] = LLVMBuildSExt (builder, LLVMBuildFPToSI (builder, lhs, LLVMInt8Type (), dname), LLVMInt32Type (), "");
2831 case OP_FCONV_TO_U1:
2832 values [ins->dreg] = LLVMBuildZExt (builder, LLVMBuildFPToUI (builder, lhs, LLVMInt8Type (), dname), LLVMInt32Type (), "");
2834 case OP_FCONV_TO_I2:
2835 values [ins->dreg] = LLVMBuildSExt (builder, LLVMBuildFPToSI (builder, lhs, LLVMInt16Type (), dname), LLVMInt32Type (), "");
2837 case OP_FCONV_TO_U2:
2838 values [ins->dreg] = LLVMBuildZExt (builder, LLVMBuildFPToUI (builder, lhs, LLVMInt16Type (), dname), LLVMInt32Type (), "");
2840 case OP_FCONV_TO_I8:
2841 values [ins->dreg] = LLVMBuildFPToSI (builder, lhs, LLVMInt64Type (), dname);
2844 values [ins->dreg] = LLVMBuildFPToSI (builder, lhs, IntPtrType (), dname);
2846 case OP_ICONV_TO_R8:
2847 case OP_LCONV_TO_R8:
2848 values [ins->dreg] = LLVMBuildSIToFP (builder, lhs, LLVMDoubleType (), dname);
2850 case OP_LCONV_TO_R_UN:
2851 values [ins->dreg] = LLVMBuildUIToFP (builder, lhs, LLVMDoubleType (), dname);
2853 #if SIZEOF_VOID_P == 4
2856 case OP_LCONV_TO_I4:
2857 values [ins->dreg] = LLVMBuildTrunc (builder, lhs, LLVMInt32Type (), dname);
2859 case OP_ICONV_TO_R4:
2860 case OP_LCONV_TO_R4:
2861 v = LLVMBuildSIToFP (builder, lhs, LLVMFloatType (), "");
2862 values [ins->dreg] = LLVMBuildFPExt (builder, v, LLVMDoubleType (), dname);
2864 case OP_FCONV_TO_R4:
2865 v = LLVMBuildFPTrunc (builder, lhs, LLVMFloatType (), "");
2866 values [ins->dreg] = LLVMBuildFPExt (builder, v, LLVMDoubleType (), dname);
2869 values [ins->dreg] = LLVMBuildSExt (builder, lhs, LLVMInt64Type (), dname);
2872 values [ins->dreg] = LLVMBuildZExt (builder, lhs, LLVMInt64Type (), dname);
2875 values [ins->dreg] = LLVMBuildTrunc (builder, lhs, LLVMInt32Type (), dname);
2877 case OP_LOCALLOC_IMM: {
2880 guint32 size = ins->inst_imm;
2881 size = (size + (MONO_ARCH_FRAME_ALIGNMENT - 1)) & ~ (MONO_ARCH_FRAME_ALIGNMENT - 1);
2883 v = mono_llvm_build_alloca (builder, LLVMInt8Type (), LLVMConstInt (LLVMInt32Type (), size, FALSE), MONO_ARCH_FRAME_ALIGNMENT, "");
2885 if (ins->flags & MONO_INST_INIT) {
2886 LLVMValueRef args [5];
2889 args [1] = LLVMConstInt (LLVMInt8Type (), 0, FALSE);
2890 args [2] = LLVMConstInt (LLVMInt32Type (), size, FALSE);
2891 args [3] = LLVMConstInt (LLVMInt32Type (), MONO_ARCH_FRAME_ALIGNMENT, FALSE);
2892 args [4] = LLVMConstInt (LLVMInt1Type (), 0, FALSE);
2893 LLVMBuildCall (builder, LLVMGetNamedFunction (module, memset_func_name), args, memset_param_count, "");
2896 values [ins->dreg] = v;
2900 LLVMValueRef v, size;
2902 size = LLVMBuildAnd (builder, LLVMBuildAdd (builder, convert (ctx, lhs, LLVMInt32Type ()), LLVMConstInt (LLVMInt32Type (), MONO_ARCH_FRAME_ALIGNMENT - 1, FALSE), ""), LLVMConstInt (LLVMInt32Type (), ~ (MONO_ARCH_FRAME_ALIGNMENT - 1), FALSE), "");
2904 v = mono_llvm_build_alloca (builder, LLVMInt8Type (), size, MONO_ARCH_FRAME_ALIGNMENT, "");
2906 if (ins->flags & MONO_INST_INIT) {
2907 LLVMValueRef args [5];
2910 args [1] = LLVMConstInt (LLVMInt8Type (), 0, FALSE);
2912 args [3] = LLVMConstInt (LLVMInt32Type (), MONO_ARCH_FRAME_ALIGNMENT, FALSE);
2913 args [4] = LLVMConstInt (LLVMInt1Type (), 0, FALSE);
2914 LLVMBuildCall (builder, LLVMGetNamedFunction (module, memset_func_name), args, memset_param_count, "");
2916 values [ins->dreg] = v;
2920 case OP_LOADI1_MEMBASE:
2921 case OP_LOADU1_MEMBASE:
2922 case OP_LOADI2_MEMBASE:
2923 case OP_LOADU2_MEMBASE:
2924 case OP_LOADI4_MEMBASE:
2925 case OP_LOADU4_MEMBASE:
2926 case OP_LOADI8_MEMBASE:
2927 case OP_LOADR4_MEMBASE:
2928 case OP_LOADR8_MEMBASE:
2929 case OP_LOAD_MEMBASE:
2937 LLVMValueRef base, index, addr;
2939 gboolean sext = FALSE, zext = FALSE;
2940 gboolean is_volatile = (ins->flags & MONO_INST_FAULT);
2942 t = load_store_to_llvm_type (ins->opcode, &size, &sext, &zext);
2947 if ((ins->opcode == OP_LOADI8_MEM) || (ins->opcode == OP_LOAD_MEM) || (ins->opcode == OP_LOADI4_MEM) || (ins->opcode == OP_LOADU4_MEM) || (ins->opcode == OP_LOADU1_MEM) || (ins->opcode == OP_LOADU2_MEM)) {
2948 addr = LLVMConstInt (IntPtrType (), ins->inst_imm, FALSE);
2953 if (ins->inst_offset == 0) {
2955 } else if (ins->inst_offset % size != 0) {
2956 /* Unaligned load */
2957 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset, FALSE);
2958 addr = LLVMBuildGEP (builder, convert (ctx, base, LLVMPointerType (LLVMInt8Type (), 0)), &index, 1, "");
2960 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset / size, FALSE);
2961 addr = LLVMBuildGEP (builder, convert (ctx, base, LLVMPointerType (t, 0)), &index, 1, "");
2965 addr = convert (ctx, addr, LLVMPointerType (t, 0));
2967 values [ins->dreg] = emit_load (ctx, bb, &builder, size, addr, dname, is_volatile);
2969 if (!is_volatile && (ins->flags & MONO_INST_CONSTANT_LOAD)) {
2971 * These will signal LLVM that these loads do not alias any stores, and
2972 * they can't fail, allowing them to be hoisted out of loops.
2974 set_metadata_flag (values [ins->dreg], "mono.noalias");
2975 set_metadata_flag (values [ins->dreg], "mono.nofail.load");
2979 values [ins->dreg] = LLVMBuildSExt (builder, values [ins->dreg], LLVMInt32Type (), dname);
2981 values [ins->dreg] = LLVMBuildZExt (builder, values [ins->dreg], LLVMInt32Type (), dname);
2982 else if (ins->opcode == OP_LOADR4_MEMBASE)
2983 values [ins->dreg] = LLVMBuildFPExt (builder, values [ins->dreg], LLVMDoubleType (), dname);
2987 case OP_STOREI1_MEMBASE_REG:
2988 case OP_STOREI2_MEMBASE_REG:
2989 case OP_STOREI4_MEMBASE_REG:
2990 case OP_STOREI8_MEMBASE_REG:
2991 case OP_STORER4_MEMBASE_REG:
2992 case OP_STORER8_MEMBASE_REG:
2993 case OP_STORE_MEMBASE_REG: {
2995 LLVMValueRef index, addr;
2997 gboolean sext = FALSE, zext = FALSE;
2998 gboolean is_volatile = (ins->flags & MONO_INST_FAULT);
3000 if (!values [ins->inst_destbasereg])
3001 LLVM_FAILURE (ctx, "inst_destbasereg");
3003 t = load_store_to_llvm_type (ins->opcode, &size, &sext, &zext);
3005 if (ins->inst_offset % size != 0) {
3006 /* Unaligned store */
3007 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset, FALSE);
3008 addr = LLVMBuildGEP (builder, convert (ctx, values [ins->inst_destbasereg], LLVMPointerType (LLVMInt8Type (), 0)), &index, 1, "");
3010 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset / size, FALSE);
3011 addr = LLVMBuildGEP (builder, convert (ctx, values [ins->inst_destbasereg], LLVMPointerType (t, 0)), &index, 1, "");
3013 emit_store (ctx, bb, &builder, size, convert (ctx, values [ins->sreg1], t), convert (ctx, addr, LLVMPointerType (t, 0)), is_volatile);
3017 case OP_STOREI1_MEMBASE_IMM:
3018 case OP_STOREI2_MEMBASE_IMM:
3019 case OP_STOREI4_MEMBASE_IMM:
3020 case OP_STOREI8_MEMBASE_IMM:
3021 case OP_STORE_MEMBASE_IMM: {
3023 LLVMValueRef index, addr;
3025 gboolean sext = FALSE, zext = FALSE;
3026 gboolean is_volatile = (ins->flags & MONO_INST_FAULT);
3028 t = load_store_to_llvm_type (ins->opcode, &size, &sext, &zext);
3030 if (ins->inst_offset % size != 0) {
3031 /* Unaligned store */
3032 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset, FALSE);
3033 addr = LLVMBuildGEP (builder, convert (ctx, values [ins->inst_destbasereg], LLVMPointerType (LLVMInt8Type (), 0)), &index, 1, "");
3035 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset / size, FALSE);
3036 addr = LLVMBuildGEP (builder, convert (ctx, values [ins->inst_destbasereg], LLVMPointerType (t, 0)), &index, 1, "");
3038 emit_store (ctx, bb, &builder, size, convert (ctx, LLVMConstInt (IntPtrType (), ins->inst_imm, FALSE), t), addr, is_volatile);
3043 emit_load (ctx, bb, &builder, sizeof (gpointer), convert (ctx, lhs, LLVMPointerType (IntPtrType (), 0)), "", TRUE);
3045 case OP_OUTARG_VTRETADDR:
3052 case OP_VOIDCALL_MEMBASE:
3053 case OP_CALL_MEMBASE:
3054 case OP_LCALL_MEMBASE:
3055 case OP_FCALL_MEMBASE:
3056 case OP_VCALL_MEMBASE:
3057 case OP_VOIDCALL_REG:
3061 case OP_VCALL_REG: {
3062 process_call (ctx, bb, &builder, ins);
3063 CHECK_FAILURE (ctx);
3068 LLVMValueRef indexes [2];
3070 LLVMValueRef got_entry_addr;
3073 * FIXME: Can't allocate from the cfg mempool since that is freed if
3074 * the LLVM compile fails.
3076 ji = g_new0 (MonoJumpInfo, 1);
3077 ji->type = (MonoJumpInfoType)ins->inst_i1;
3078 ji->data.target = ins->inst_p0;
3080 ji = mono_aot_patch_info_dup (ji);
3082 ji->next = cfg->patch_info;
3083 cfg->patch_info = ji;
3085 //mono_add_patch_info (cfg, 0, (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3086 got_offset = mono_aot_get_got_offset (cfg->patch_info);
3088 indexes [0] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3089 indexes [1] = LLVMConstInt (LLVMInt32Type (), (gssize)got_offset, FALSE);
3090 got_entry_addr = LLVMBuildGEP (builder, ctx->lmodule->got_var, indexes, 2, "");
3092 // FIXME: This doesn't work right now, because it must be
3093 // paired with an invariant.end, and even then, its only in effect
3094 // inside its basic block
3097 LLVMValueRef args [3];
3098 LLVMValueRef ptr, val;
3100 ptr = LLVMBuildBitCast (builder, got_entry_addr, LLVMPointerType (LLVMInt8Type (), 0), "ptr");
3102 args [0] = LLVMConstInt (LLVMInt64Type (), sizeof (gpointer), FALSE);
3104 val = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "llvm.invariant.start"), args, 2, "");
3108 values [ins->dreg] = LLVMBuildLoad (builder, got_entry_addr, dname);
3111 case OP_NOT_REACHED:
3112 LLVMBuildUnreachable (builder);
3113 has_terminator = TRUE;
3114 g_assert (bb->block_num < cfg->max_block_num);
3115 ctx->unreachable [bb->block_num] = TRUE;
3116 /* Might have instructions after this */
3118 MonoInst *next = ins->next;
3120 * FIXME: If later code uses the regs defined by these instructions,
3121 * compilation will fail.
3123 MONO_DELETE_INS (bb, next);
3127 MonoInst *var = ins->inst_p0;
3129 values [ins->dreg] = addresses [var->dreg];
3133 LLVMValueRef args [1];
3135 args [0] = convert (ctx, lhs, LLVMDoubleType ());
3136 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "llvm.sin.f64"), args, 1, dname);
3140 LLVMValueRef args [1];
3142 args [0] = convert (ctx, lhs, LLVMDoubleType ());
3143 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "llvm.cos.f64"), args, 1, dname);
3147 LLVMValueRef args [1];
3150 /* This no longer seems to happen */
3152 * LLVM optimizes sqrt(nan) into undefined in
3153 * lib/Analysis/ConstantFolding.cpp
3154 * Also, sqrt(NegativeInfinity) is optimized into 0.
3156 LLVM_FAILURE (ctx, "sqrt");
3158 args [0] = convert (ctx, lhs, LLVMDoubleType ());
3159 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "llvm.sqrt.f64"), args, 1, dname);
3163 LLVMValueRef args [1];
3165 args [0] = convert (ctx, lhs, LLVMDoubleType ());
3166 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "fabs"), args, 1, dname);
3180 lhs = convert (ctx, lhs, regtype_to_llvm_type (spec [MONO_INST_DEST]));
3181 rhs = convert (ctx, rhs, regtype_to_llvm_type (spec [MONO_INST_DEST]));
3183 switch (ins->opcode) {
3186 v = LLVMBuildICmp (builder, LLVMIntSLE, lhs, rhs, "");
3190 v = LLVMBuildICmp (builder, LLVMIntSGE, lhs, rhs, "");
3194 v = LLVMBuildICmp (builder, LLVMIntULE, lhs, rhs, "");
3198 v = LLVMBuildICmp (builder, LLVMIntUGE, lhs, rhs, "");
3201 g_assert_not_reached ();
3204 values [ins->dreg] = LLVMBuildSelect (builder, v, lhs, rhs, dname);
3207 case OP_ATOMIC_EXCHANGE_I4: {
3208 LLVMValueRef args [2];
3210 g_assert (ins->inst_offset == 0);
3212 args [0] = convert (ctx, lhs, LLVMPointerType (LLVMInt32Type (), 0));
3215 values [ins->dreg] = mono_llvm_build_atomic_rmw (builder, LLVM_ATOMICRMW_OP_XCHG, args [0], args [1]);
3218 case OP_ATOMIC_EXCHANGE_I8: {
3219 LLVMValueRef args [2];
3221 g_assert (ins->inst_offset == 0);
3223 args [0] = convert (ctx, lhs, LLVMPointerType (LLVMInt64Type (), 0));
3224 args [1] = convert (ctx, rhs, LLVMInt64Type ());
3225 values [ins->dreg] = mono_llvm_build_atomic_rmw (builder, LLVM_ATOMICRMW_OP_XCHG, args [0], args [1]);
3228 case OP_ATOMIC_ADD_NEW_I4: {
3229 LLVMValueRef args [2];
3231 g_assert (ins->inst_offset == 0);
3233 args [0] = convert (ctx, lhs, LLVMPointerType (LLVMInt32Type (), 0));
3235 values [ins->dreg] = LLVMBuildAdd (builder, mono_llvm_build_atomic_rmw (builder, LLVM_ATOMICRMW_OP_ADD, args [0], args [1]), args [1], dname);
3238 case OP_ATOMIC_ADD_NEW_I8: {
3239 LLVMValueRef args [2];
3241 g_assert (ins->inst_offset == 0);
3243 args [0] = convert (ctx, lhs, LLVMPointerType (LLVMInt64Type (), 0));
3244 args [1] = convert (ctx, rhs, LLVMInt64Type ());
3245 values [ins->dreg] = LLVMBuildAdd (builder, mono_llvm_build_atomic_rmw (builder, LLVM_ATOMICRMW_OP_ADD, args [0], args [1]), args [1], dname);
3248 case OP_ATOMIC_CAS_I4:
3249 case OP_ATOMIC_CAS_I8: {
3250 LLVMValueRef args [3];
3253 if (ins->opcode == OP_ATOMIC_CAS_I4) {
3254 t = LLVMInt32Type ();
3256 t = LLVMInt64Type ();
3259 args [0] = convert (ctx, lhs, LLVMPointerType (t, 0));
3261 args [1] = convert (ctx, values [ins->sreg3], t);
3263 args [2] = convert (ctx, values [ins->sreg2], t);
3264 values [ins->dreg] = mono_llvm_build_cmpxchg (builder, args [0], args [1], args [2]);
3267 case OP_MEMORY_BARRIER: {
3268 mono_llvm_build_fence (builder);
3271 case OP_RELAXED_NOP: {
3272 #if defined(TARGET_AMD64) || defined(TARGET_X86)
3273 emit_call (ctx, bb, &builder, LLVMGetNamedFunction (ctx->module, "llvm.x86.sse2.pause"), NULL, 0);
3280 #if (defined(TARGET_AMD64) || defined(TARGET_X86)) && defined(__linux__)
3282 // 257 == FS segment register
3283 LLVMTypeRef ptrtype = LLVMPointerType (IntPtrType (), 257);
3285 // 256 == GS segment register
3286 LLVMTypeRef ptrtype = LLVMPointerType (IntPtrType (), 256);
3290 values [ins->dreg] = LLVMBuildLoad (builder, LLVMBuildIntToPtr (builder, LLVMConstInt (IntPtrType (), ins->inst_offset, TRUE), ptrtype, ""), "");
3292 LLVM_FAILURE (ctx, "opcode tls-get");
3302 case OP_IADD_OVF_UN:
3304 case OP_ISUB_OVF_UN:
3306 case OP_IMUL_OVF_UN:
3307 #if SIZEOF_VOID_P == 8
3309 case OP_LADD_OVF_UN:
3311 case OP_LSUB_OVF_UN:
3313 case OP_LMUL_OVF_UN:
3316 LLVMValueRef args [2], val, ovf, func;
3318 args [0] = convert (ctx, lhs, op_to_llvm_type (ins->opcode));
3319 args [1] = convert (ctx, rhs, op_to_llvm_type (ins->opcode));
3320 func = LLVMGetNamedFunction (module, ovf_op_to_intrins (ins->opcode));
3322 val = LLVMBuildCall (builder, func, args, 2, "");
3323 values [ins->dreg] = LLVMBuildExtractValue (builder, val, 0, dname);
3324 ovf = LLVMBuildExtractValue (builder, val, 1, "");
3325 emit_cond_system_exception (ctx, bb, "OverflowException", ovf);
3326 CHECK_FAILURE (ctx);
3327 builder = ctx->builder;
3333 * We currently model them using arrays. Promotion to local vregs is
3334 * disabled for them in mono_handle_global_vregs () in the LLVM case,
3335 * so we always have an entry in cfg->varinfo for them.
3336 * FIXME: Is this needed ?
3339 MonoClass *klass = ins->klass;
3340 LLVMValueRef args [5];
3344 LLVM_FAILURE (ctx, "!klass");
3348 if (!addresses [ins->dreg])
3349 addresses [ins->dreg] = build_alloca (ctx, &klass->byval_arg);
3350 args [0] = LLVMBuildBitCast (builder, addresses [ins->dreg], LLVMPointerType (LLVMInt8Type (), 0), "");
3351 args [1] = LLVMConstInt (LLVMInt8Type (), 0, FALSE);
3352 args [2] = LLVMConstInt (LLVMInt32Type (), mono_class_value_size (klass, NULL), FALSE);
3354 args [3] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3355 args [4] = LLVMConstInt (LLVMInt1Type (), 0, FALSE);
3356 LLVMBuildCall (builder, LLVMGetNamedFunction (module, memset_func_name), args, memset_param_count, "");
3360 case OP_STOREV_MEMBASE:
3361 case OP_LOADV_MEMBASE:
3363 MonoClass *klass = ins->klass;
3364 LLVMValueRef src = NULL, dst, args [5];
3365 gboolean done = FALSE;
3369 LLVM_FAILURE (ctx, "!klass");
3373 switch (ins->opcode) {
3374 case OP_STOREV_MEMBASE:
3375 if (cfg->gen_write_barriers && klass->has_references && ins->inst_destbasereg != cfg->frame_reg) {
3376 /* FIXME: Emit write barriers like in mini_emit_stobj () */
3377 LLVM_FAILURE (ctx, "storev_membase + write barriers");
3380 if (!addresses [ins->sreg1]) {
3382 g_assert (values [ins->sreg1]);
3383 dst = convert (ctx, LLVMBuildAdd (builder, convert (ctx, values [ins->inst_destbasereg], IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_offset, FALSE), ""), LLVMPointerType (type_to_llvm_type (ctx, &klass->byval_arg), 0));
3384 LLVMBuildStore (builder, values [ins->sreg1], dst);
3387 src = LLVMBuildBitCast (builder, addresses [ins->sreg1], LLVMPointerType (LLVMInt8Type (), 0), "");
3388 dst = convert (ctx, LLVMBuildAdd (builder, convert (ctx, values [ins->inst_destbasereg], IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_offset, FALSE), ""), LLVMPointerType (LLVMInt8Type (), 0));
3391 case OP_LOADV_MEMBASE:
3392 if (!addresses [ins->dreg])
3393 addresses [ins->dreg] = build_alloca (ctx, &klass->byval_arg);
3394 src = convert (ctx, LLVMBuildAdd (builder, convert (ctx, values [ins->inst_basereg], IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_offset, FALSE), ""), LLVMPointerType (LLVMInt8Type (), 0));
3395 dst = LLVMBuildBitCast (builder, addresses [ins->dreg], LLVMPointerType (LLVMInt8Type (), 0), "");
3398 if (!addresses [ins->sreg1])
3399 addresses [ins->sreg1] = build_alloca (ctx, &klass->byval_arg);
3400 if (!addresses [ins->dreg])
3401 addresses [ins->dreg] = build_alloca (ctx, &klass->byval_arg);
3402 src = LLVMBuildBitCast (builder, addresses [ins->sreg1], LLVMPointerType (LLVMInt8Type (), 0), "");
3403 dst = LLVMBuildBitCast (builder, addresses [ins->dreg], LLVMPointerType (LLVMInt8Type (), 0), "");
3406 g_assert_not_reached ();
3408 CHECK_FAILURE (ctx);
3415 args [2] = LLVMConstInt (LLVMInt32Type (), mono_class_value_size (klass, NULL), FALSE);
3416 args [3] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3418 args [3] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3419 args [4] = LLVMConstInt (LLVMInt1Type (), 0, FALSE);
3420 LLVMBuildCall (builder, LLVMGetNamedFunction (module, memcpy_func_name), args, memcpy_param_count, "");
3423 case OP_LLVM_OUTARG_VT:
3424 if (!addresses [ins->sreg1]) {
3425 addresses [ins->sreg1] = build_alloca (ctx, &ins->klass->byval_arg);
3426 g_assert (values [ins->sreg1]);
3427 LLVMBuildStore (builder, values [ins->sreg1], addresses [ins->sreg1]);
3429 addresses [ins->dreg] = addresses [ins->sreg1];
3435 #if defined(TARGET_X86) || defined(TARGET_AMD64)
3437 values [ins->dreg] = LLVMConstNull (type_to_llvm_type (ctx, &ins->klass->byval_arg));
3440 case OP_LOADX_MEMBASE: {
3441 LLVMTypeRef t = type_to_llvm_type (ctx, &ins->klass->byval_arg);
3444 src = convert (ctx, LLVMBuildAdd (builder, convert (ctx, values [ins->inst_basereg], IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_offset, FALSE), ""), LLVMPointerType (t, 0));
3445 values [ins->dreg] = mono_llvm_build_aligned_load (builder, src, "", FALSE, 1);
3448 case OP_STOREX_MEMBASE: {
3449 LLVMTypeRef t = LLVMTypeOf (values [ins->sreg1]);
3452 dest = convert (ctx, LLVMBuildAdd (builder, convert (ctx, values [ins->inst_destbasereg], IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_offset, FALSE), ""), LLVMPointerType (t, 0));
3453 mono_llvm_build_aligned_store (builder, values [ins->sreg1], dest, FALSE, 1);
3460 values [ins->dreg] = LLVMBuildAdd (builder, lhs, rhs, "");
3464 values [ins->dreg] = LLVMBuildFAdd (builder, lhs, rhs, "");
3470 values [ins->dreg] = LLVMBuildSub (builder, lhs, rhs, "");
3474 values [ins->dreg] = LLVMBuildFSub (builder, lhs, rhs, "");
3478 values [ins->dreg] = LLVMBuildFMul (builder, lhs, rhs, "");
3482 values [ins->dreg] = LLVMBuildFDiv (builder, lhs, rhs, "");
3485 values [ins->dreg] = LLVMBuildAnd (builder, lhs, rhs, "");
3488 values [ins->dreg] = LLVMBuildOr (builder, lhs, rhs, "");
3491 values [ins->dreg] = LLVMBuildXor (builder, lhs, rhs, "");
3495 values [ins->dreg] = LLVMBuildMul (builder, lhs, rhs, "");
3506 LLVMValueRef v = NULL;
3508 switch (ins->opcode) {
3513 t = LLVMVectorType (LLVMInt32Type (), 4);
3514 rt = LLVMVectorType (LLVMFloatType (), 4);
3520 t = LLVMVectorType (LLVMInt64Type (), 2);
3521 rt = LLVMVectorType (LLVMDoubleType (), 2);
3524 t = LLVMInt32Type ();
3525 rt = LLVMInt32Type ();
3526 g_assert_not_reached ();
3529 lhs = LLVMBuildBitCast (builder, lhs, t, "");
3530 rhs = LLVMBuildBitCast (builder, rhs, t, "");
3531 switch (ins->opcode) {
3534 v = LLVMBuildAnd (builder, lhs, rhs, "");
3538 v = LLVMBuildOr (builder, lhs, rhs, "");
3542 v = LLVMBuildXor (builder, lhs, rhs, "");
3546 v = LLVMBuildAnd (builder, rhs, LLVMBuildNot (builder, lhs, ""), "");
3549 values [ins->dreg] = LLVMBuildBitCast (builder, v, rt, "");
3573 case OP_PADDB_SAT_UN:
3574 case OP_PADDW_SAT_UN:
3575 case OP_PSUBB_SAT_UN:
3576 case OP_PSUBW_SAT_UN:
3584 case OP_PMULW_HIGH_UN: {
3585 LLVMValueRef args [2];
3590 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), args, 2, dname);
3597 values [ins->dreg] = LLVMBuildSExt (builder, LLVMBuildICmp (builder, LLVMIntEQ, lhs, rhs, ""), LLVMTypeOf (lhs), "");
3601 values [ins->dreg] = LLVMBuildSExt (builder, LLVMBuildICmp (builder, LLVMIntSGT, lhs, rhs, ""), LLVMTypeOf (lhs), "");
3609 case OP_EXTRACTX_U2:
3611 case OP_EXTRACT_U1: {
3613 gboolean zext = FALSE;
3615 t = simd_op_to_llvm_type (ins->opcode);
3617 switch (ins->opcode) {
3625 case OP_EXTRACTX_U2:
3630 t = LLVMInt32Type ();
3631 g_assert_not_reached ();
3634 lhs = LLVMBuildBitCast (builder, lhs, t, "");
3635 values [ins->dreg] = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), "");
3637 values [ins->dreg] = LLVMBuildZExt (builder, values [ins->dreg], LLVMInt32Type (), "");
3646 case OP_EXPAND_R8: {
3647 LLVMTypeRef t = simd_op_to_llvm_type (ins->opcode);
3648 LLVMValueRef mask [16], v;
3650 for (i = 0; i < 16; ++i)
3651 mask [i] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3653 v = convert (ctx, values [ins->sreg1], LLVMGetElementType (t));
3655 values [ins->dreg] = LLVMBuildInsertElement (builder, LLVMConstNull (t), v, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3656 values [ins->dreg] = LLVMBuildShuffleVector (builder, values [ins->dreg], LLVMGetUndef (t), LLVMConstVector (mask, LLVMGetVectorSize (t)), "");
3661 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMInt8Type ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3664 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMInt16Type ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3667 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMInt32Type ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3670 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMInt64Type ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3673 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMFloatType ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3676 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMDoubleType ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3687 case OP_EXTRACT_MASK:
3694 v = convert (ctx, values [ins->sreg1], simd_op_to_llvm_type (ins->opcode));
3696 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), &v, 1, dname);
3700 case OP_ICONV_TO_R8_RAW:
3701 /* Same as OP_ICONV_TO_R8 */
3702 values [ins->dreg] = convert (ctx, LLVMBuildBitCast (builder, lhs, LLVMFloatType (), ""), LLVMDoubleType ());
3707 LLVMValueRef args [3];
3711 args [2] = LLVMConstInt (LLVMInt8Type (), ins->inst_c0, FALSE);
3713 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), args, 3, dname);
3718 /* This is only used for implementing shifts by non-immediate */
3719 values [ins->dreg] = lhs;
3730 LLVMValueRef args [3];
3733 args [1] = LLVMConstInt (LLVMInt32Type (), ins->inst_imm, FALSE);
3735 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), args, 2, dname);
3746 case OP_PSHLQ_REG: {
3747 LLVMValueRef args [3];
3750 args [1] = values [ins->sreg2];
3752 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), args, 2, dname);
3759 case OP_PSHUFLEW_LOW:
3760 case OP_PSHUFLEW_HIGH: {
3762 LLVMValueRef v1 = NULL, v2 = NULL, mask_values [16];
3763 int i, mask_size = 0;
3764 int imask = ins->inst_c0;
3766 /* Convert the x86 shuffle mask to LLVM's */
3767 switch (ins->opcode) {
3770 mask [0] = ((imask >> 0) & 3);
3771 mask [1] = ((imask >> 2) & 3);
3772 mask [2] = ((imask >> 4) & 3) + 4;
3773 mask [3] = ((imask >> 6) & 3) + 4;
3774 v1 = values [ins->sreg1];
3775 v2 = values [ins->sreg2];
3779 mask [0] = ((imask >> 0) & 1);
3780 mask [1] = ((imask >> 1) & 1) + 2;
3781 v1 = values [ins->sreg1];
3782 v2 = values [ins->sreg2];
3784 case OP_PSHUFLEW_LOW:
3786 mask [0] = ((imask >> 0) & 3);
3787 mask [1] = ((imask >> 2) & 3);
3788 mask [2] = ((imask >> 4) & 3);
3789 mask [3] = ((imask >> 6) & 3);
3794 v1 = values [ins->sreg1];
3795 v2 = LLVMGetUndef (LLVMTypeOf (v1));
3797 case OP_PSHUFLEW_HIGH:
3803 mask [4] = 4 + ((imask >> 0) & 3);
3804 mask [5] = 4 + ((imask >> 2) & 3);
3805 mask [6] = 4 + ((imask >> 4) & 3);
3806 mask [7] = 4 + ((imask >> 6) & 3);
3807 v1 = values [ins->sreg1];
3808 v2 = LLVMGetUndef (LLVMTypeOf (v1));
3812 mask [0] = ((imask >> 0) & 3);
3813 mask [1] = ((imask >> 2) & 3);
3814 mask [2] = ((imask >> 4) & 3);
3815 mask [3] = ((imask >> 6) & 3);
3816 v1 = values [ins->sreg1];
3817 v2 = LLVMGetUndef (LLVMTypeOf (v1));
3820 g_assert_not_reached ();
3822 for (i = 0; i < mask_size; ++i)
3823 mask_values [i] = LLVMConstInt (LLVMInt32Type (), mask [i], FALSE);
3825 values [ins->dreg] =
3826 LLVMBuildShuffleVector (builder, v1, v2,
3827 LLVMConstVector (mask_values, mask_size), dname);
3831 case OP_UNPACK_LOWB:
3832 case OP_UNPACK_LOWW:
3833 case OP_UNPACK_LOWD:
3834 case OP_UNPACK_LOWQ:
3835 case OP_UNPACK_LOWPS:
3836 case OP_UNPACK_LOWPD:
3837 case OP_UNPACK_HIGHB:
3838 case OP_UNPACK_HIGHW:
3839 case OP_UNPACK_HIGHD:
3840 case OP_UNPACK_HIGHQ:
3841 case OP_UNPACK_HIGHPS:
3842 case OP_UNPACK_HIGHPD: {
3844 LLVMValueRef mask_values [16];
3845 int i, mask_size = 0;
3846 gboolean low = FALSE;
3848 switch (ins->opcode) {
3849 case OP_UNPACK_LOWB:
3853 case OP_UNPACK_LOWW:
3857 case OP_UNPACK_LOWD:
3858 case OP_UNPACK_LOWPS:
3862 case OP_UNPACK_LOWQ:
3863 case OP_UNPACK_LOWPD:
3867 case OP_UNPACK_HIGHB:
3870 case OP_UNPACK_HIGHW:
3873 case OP_UNPACK_HIGHD:
3874 case OP_UNPACK_HIGHPS:
3877 case OP_UNPACK_HIGHQ:
3878 case OP_UNPACK_HIGHPD:
3882 g_assert_not_reached ();
3886 for (i = 0; i < (mask_size / 2); ++i) {
3888 mask [(i * 2) + 1] = mask_size + i;
3891 for (i = 0; i < (mask_size / 2); ++i) {
3892 mask [(i * 2)] = (mask_size / 2) + i;
3893 mask [(i * 2) + 1] = mask_size + (mask_size / 2) + i;
3897 for (i = 0; i < mask_size; ++i)
3898 mask_values [i] = LLVMConstInt (LLVMInt32Type (), mask [i], FALSE);
3900 values [ins->dreg] =
3901 LLVMBuildShuffleVector (builder, values [ins->sreg1], values [ins->sreg2],
3902 LLVMConstVector (mask_values, mask_size), dname);
3907 LLVMTypeRef t = simd_op_to_llvm_type (ins->opcode);
3908 LLVMValueRef v, val;
3910 v = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3911 val = LLVMConstNull (t);
3912 val = LLVMBuildInsertElement (builder, val, v, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3913 val = LLVMBuildInsertElement (builder, val, v, LLVMConstInt (LLVMInt32Type (), 1, FALSE), dname);
3915 values [ins->dreg] = val;
3919 case OP_DUPPS_HIGH: {
3920 LLVMTypeRef t = simd_op_to_llvm_type (ins->opcode);
3921 LLVMValueRef v1, v2, val;
3924 if (ins->opcode == OP_DUPPS_LOW) {
3925 v1 = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3926 v2 = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 2, FALSE), "");
3928 v1 = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 1, FALSE), "");
3929 v2 = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 3, FALSE), "");
3931 val = LLVMConstNull (t);
3932 val = LLVMBuildInsertElement (builder, val, v1, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3933 val = LLVMBuildInsertElement (builder, val, v1, LLVMConstInt (LLVMInt32Type (), 1, FALSE), "");
3934 val = LLVMBuildInsertElement (builder, val, v2, LLVMConstInt (LLVMInt32Type (), 2, FALSE), "");
3935 val = LLVMBuildInsertElement (builder, val, v2, LLVMConstInt (LLVMInt32Type (), 3, FALSE), "");
3937 values [ins->dreg] = val;
3947 * EXCEPTION HANDLING
3949 case OP_IMPLICIT_EXCEPTION:
3950 /* This marks a place where an implicit exception can happen */
3951 if (bb->region != -1)
3952 LLVM_FAILURE (ctx, "implicit-exception");
3956 MonoMethodSignature *throw_sig;
3957 LLVMValueRef callee, arg;
3958 gboolean rethrow = (ins->opcode == OP_RETHROW);
3959 const char *icall_name;
3961 callee = rethrow ? ctx->lmodule->rethrow : ctx->lmodule->throw;
3962 icall_name = rethrow ? "mono_arch_rethrow_exception" : "mono_arch_throw_exception";
3965 throw_sig = mono_metadata_signature_alloc (mono_get_corlib (), 1);
3966 throw_sig->ret = &mono_get_void_class ()->byval_arg;
3967 throw_sig->params [0] = &mono_get_object_class ()->byval_arg;
3968 if (cfg->compile_aot) {
3969 callee = get_plt_entry (ctx, sig_to_llvm_sig (ctx, throw_sig), MONO_PATCH_INFO_INTERNAL_METHOD, icall_name);
3971 callee = LLVMAddFunction (module, icall_name, sig_to_llvm_sig (ctx, throw_sig));
3975 * LLVM doesn't push the exception argument, so we need a different
3978 LLVMAddGlobalMapping (ee, callee, resolve_patch (cfg, MONO_PATCH_INFO_INTERNAL_METHOD, rethrow ? "llvm_rethrow_exception_trampoline" : "llvm_throw_exception_trampoline"));
3980 LLVMAddGlobalMapping (ee, callee, resolve_patch (cfg, MONO_PATCH_INFO_INTERNAL_METHOD, icall_name));
3984 mono_memory_barrier ();
3986 ctx->lmodule->rethrow = callee;
3988 ctx->lmodule->throw = callee;
3990 arg = convert (ctx, values [ins->sreg1], type_to_llvm_type (ctx, &mono_get_object_class ()->byval_arg));
3991 emit_call (ctx, bb, &builder, callee, &arg, 1);
3994 case OP_CALL_HANDLER: {
3996 * We don't 'call' handlers, but instead simply branch to them.
3997 * The code generated by ENDFINALLY will branch back to us.
3999 LLVMBasicBlockRef noex_bb;
4001 BBInfo *info = &bblocks [ins->inst_target_bb->block_num];
4003 bb_list = info->call_handler_return_bbs;
4006 * Set the indicator variable for the finally clause.
4008 lhs = info->finally_ind;
4010 LLVMBuildStore (builder, LLVMConstInt (LLVMInt32Type (), g_slist_length (bb_list) + 1, FALSE), lhs);
4012 /* Branch to the finally clause */
4013 LLVMBuildBr (builder, info->call_handler_target_bb);
4015 noex_bb = gen_bb (ctx, "CALL_HANDLER_CONT_BB");
4016 info->call_handler_return_bbs = g_slist_append_mempool (cfg->mempool, info->call_handler_return_bbs, noex_bb);
4018 builder = ctx->builder = create_builder (ctx);
4019 LLVMPositionBuilderAtEnd (ctx->builder, noex_bb);
4021 bblocks [bb->block_num].end_bblock = noex_bb;
4024 case OP_START_HANDLER: {
4027 case OP_ENDFINALLY: {
4028 LLVMBasicBlockRef resume_bb;
4029 MonoBasicBlock *handler_bb;
4030 LLVMValueRef val, switch_ins, callee;
4034 handler_bb = g_hash_table_lookup (ctx->region_to_handler, GUINT_TO_POINTER (mono_get_block_region_notry (cfg, bb->region)));
4035 g_assert (handler_bb);
4036 info = &bblocks [handler_bb->block_num];
4037 lhs = info->finally_ind;
4040 bb_list = info->call_handler_return_bbs;
4042 resume_bb = gen_bb (ctx, "ENDFINALLY_RESUME_BB");
4044 /* Load the finally variable */
4045 val = LLVMBuildLoad (builder, lhs, "");
4047 /* Reset the variable */
4048 LLVMBuildStore (builder, LLVMConstInt (LLVMInt32Type (), 0, FALSE), lhs);
4050 /* Branch to either resume_bb, or to the bblocks in bb_list */
4051 switch_ins = LLVMBuildSwitch (builder, val, resume_bb, g_slist_length (bb_list));
4053 * The other targets are added at the end to handle OP_CALL_HANDLER
4054 * opcodes processed later.
4056 info->endfinally_switch_ins_list = g_slist_append_mempool (cfg->mempool, info->endfinally_switch_ins_list, switch_ins);
4058 builder = ctx->builder = create_builder (ctx);
4059 LLVMPositionBuilderAtEnd (ctx->builder, resume_bb);
4061 if (ctx->cfg->compile_aot) {
4062 callee = get_plt_entry (ctx, LLVMFunctionType (LLVMVoidType (), NULL, 0, FALSE), MONO_PATCH_INFO_INTERNAL_METHOD, "llvm_resume_unwind_trampoline");
4064 callee = LLVMGetNamedFunction (module, "llvm_resume_unwind_trampoline");
4066 LLVMBuildCall (builder, callee, NULL, 0, "");
4068 LLVMBuildUnreachable (builder);
4069 has_terminator = TRUE;
4075 sprintf (reason, "opcode %s", mono_inst_name (ins->opcode));
4076 LLVM_FAILURE (ctx, reason);
4081 /* Convert the value to the type required by phi nodes */
4082 if (spec [MONO_INST_DEST] != ' ' && !MONO_IS_STORE_MEMBASE (ins) && ctx->vreg_types [ins->dreg]) {
4083 if (!values [ins->dreg])
4085 values [ins->dreg] = addresses [ins->dreg];
4087 values [ins->dreg] = convert (ctx, values [ins->dreg], ctx->vreg_types [ins->dreg]);
4090 /* Add stores for volatile variables */
4091 if (spec [MONO_INST_DEST] != ' ' && spec [MONO_INST_DEST] != 'v' && !MONO_IS_STORE_MEMBASE (ins))
4092 emit_volatile_store (ctx, ins->dreg);
4095 if (!has_terminator && bb->next_bb && (bb == cfg->bb_entry || bb->in_count > 0))
4096 LLVMBuildBr (builder, get_bb (ctx, bb->next_bb));
4098 if (bb == cfg->bb_exit && sig->ret->type == MONO_TYPE_VOID)
4099 LLVMBuildRetVoid (builder);
4101 if (bb == cfg->bb_entry)
4102 ctx->last_alloca = LLVMGetLastInstruction (get_bb (ctx, cfg->bb_entry));
4111 * mono_llvm_check_method_supported:
4113 * Do some quick checks to decide whenever cfg->method can be compiled by LLVM, to avoid
4114 * compiling a method twice.
4117 mono_llvm_check_method_supported (MonoCompile *cfg)
4119 MonoMethodHeader *header = cfg->header;
4120 MonoExceptionClause *clause;
4123 if (cfg->method->save_lmf) {
4124 cfg->exception_message = g_strdup ("lmf");
4125 cfg->disable_llvm = TRUE;
4129 for (i = 0; i < header->num_clauses; ++i) {
4130 clause = &header->clauses [i];
4132 if (i > 0 && clause->try_offset <= header->clauses [i - 1].handler_offset + header->clauses [i - 1].handler_len) {
4134 * FIXME: Some tests still fail with nested clauses.
4136 cfg->exception_message = g_strdup ("nested clauses");
4137 cfg->disable_llvm = TRUE;
4143 if (cfg->method->dynamic) {
4144 cfg->exception_message = g_strdup ("dynamic.");
4145 cfg->disable_llvm = TRUE;
4150 * mono_llvm_emit_method:
4152 * Emit LLVM IL from the mono IL, and compile it to native code using LLVM.
4155 mono_llvm_emit_method (MonoCompile *cfg)
4158 MonoMethodSignature *sig;
4160 LLVMTypeRef method_type;
4161 LLVMValueRef method = NULL;
4163 LLVMValueRef *values;
4164 int i, max_block_num, bb_index;
4165 gboolean last = FALSE;
4166 GPtrArray *phi_values;
4167 LLVMCallInfo *linfo;
4169 LLVMModuleRef module;
4171 GPtrArray *bblock_list;
4172 MonoMethodHeader *header;
4173 MonoExceptionClause *clause;
4177 /* The code below might acquire the loader lock, so use it for global locking */
4178 mono_loader_lock ();
4180 /* Used to communicate with the callbacks */
4181 mono_native_tls_set_value (current_cfg_tls_id, cfg);
4183 ctx = g_new0 (EmitContext, 1);
4185 ctx->mempool = cfg->mempool;
4188 * This maps vregs to the LLVM instruction defining them
4190 values = g_new0 (LLVMValueRef, cfg->next_vreg);
4192 * This maps vregs for volatile variables to the LLVM instruction defining their
4195 ctx->addresses = g_new0 (LLVMValueRef, cfg->next_vreg);
4196 ctx->vreg_types = g_new0 (LLVMTypeRef, cfg->next_vreg);
4197 ctx->vreg_cli_types = g_new0 (MonoType*, cfg->next_vreg);
4198 phi_values = g_ptr_array_new ();
4200 * This signals whenever the vreg was defined by a phi node with no input vars
4201 * (i.e. all its input bblocks end with NOT_REACHABLE).
4203 ctx->is_dead = g_new0 (gboolean, cfg->next_vreg);
4204 /* Whenever the bblock is unreachable */
4205 ctx->unreachable = g_new0 (gboolean, cfg->max_block_num);
4207 bblock_list = g_ptr_array_new ();
4209 ctx->values = values;
4210 ctx->region_to_handler = g_hash_table_new (NULL, NULL);
4212 if (cfg->compile_aot) {
4213 ctx->lmodule = &aot_module;
4214 method_name = mono_aot_get_method_name (cfg);
4215 cfg->llvm_method_name = g_strdup (method_name);
4218 ctx->lmodule = &jit_module;
4219 method_name = mono_method_full_name (cfg->method, TRUE);
4222 module = ctx->module = ctx->lmodule->module;
4226 static int count = 0;
4229 if (getenv ("LLVM_COUNT")) {
4230 if (count == atoi (getenv ("LLVM_COUNT"))) {
4231 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
4235 if (count > atoi (getenv ("LLVM_COUNT")))
4236 LLVM_FAILURE (ctx, "");
4241 sig = mono_method_signature (cfg->method);
4244 linfo = mono_arch_get_llvm_call_info (cfg, sig);
4246 CHECK_FAILURE (ctx);
4249 linfo->rgctx_arg = TRUE;
4250 method_type = sig_to_llvm_sig_full (ctx, sig, linfo, &sinfo);
4251 CHECK_FAILURE (ctx);
4254 * This maps parameter indexes in the original signature to the indexes in
4255 * the LLVM signature.
4257 ctx->pindexes = sinfo.pindexes;
4259 method = LLVMAddFunction (module, method_name, method_type);
4260 ctx->lmethod = method;
4262 #ifdef LLVM_MONO_BRANCH
4263 LLVMSetFunctionCallConv (method, LLVMMono1CallConv);
4265 LLVMSetLinkage (method, LLVMPrivateLinkage);
4267 LLVMAddFunctionAttr (method, LLVMUWTable);
4269 if (cfg->compile_aot) {
4270 LLVMSetLinkage (method, LLVMInternalLinkage);
4271 LLVMSetVisibility (method, LLVMHiddenVisibility);
4273 LLVMSetLinkage (method, LLVMPrivateLinkage);
4276 if (cfg->method->save_lmf)
4277 LLVM_FAILURE (ctx, "lmf");
4279 if (sig->pinvoke && cfg->method->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE)
4280 LLVM_FAILURE (ctx, "pinvoke signature");
4282 header = cfg->header;
4283 for (i = 0; i < header->num_clauses; ++i) {
4284 clause = &header->clauses [i];
4285 if (clause->flags != MONO_EXCEPTION_CLAUSE_FINALLY && clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
4286 LLVM_FAILURE (ctx, "non-finally/catch clause.");
4289 if (linfo->rgctx_arg) {
4290 ctx->rgctx_arg = LLVMGetParam (method, sinfo.rgctx_arg_pindex);
4292 * We mark the rgctx parameter with the inreg attribute, which is mapped to
4293 * MONO_ARCH_RGCTX_REG in the Mono calling convention in llvm, i.e.
4294 * CC_X86_64_Mono in X86CallingConv.td.
4296 LLVMAddAttribute (ctx->rgctx_arg, LLVMInRegAttribute);
4297 LLVMSetValueName (ctx->rgctx_arg, "rgctx");
4299 if (cfg->vret_addr) {
4300 values [cfg->vret_addr->dreg] = LLVMGetParam (method, sinfo.vret_arg_pindex);
4301 LLVMSetValueName (values [cfg->vret_addr->dreg], "vret");
4304 values [cfg->args [0]->dreg] = LLVMGetParam (method, sinfo.this_arg_pindex);
4305 LLVMSetValueName (values [cfg->args [0]->dreg], "this");
4308 names = g_new (char *, sig->param_count);
4309 mono_method_get_param_names (cfg->method, (const char **) names);
4311 for (i = 0; i < sig->param_count; ++i) {
4314 values [cfg->args [i + sig->hasthis]->dreg] = LLVMGetParam (method, sinfo.pindexes [i]);
4315 if (names [i] && names [i][0] != '\0')
4316 name = g_strdup_printf ("arg_%s", names [i]);
4318 name = g_strdup_printf ("arg_%d", i);
4319 LLVMSetValueName (values [cfg->args [i + sig->hasthis]->dreg], name);
4321 if (linfo->args [i + sig->hasthis].storage == LLVMArgVtypeByVal)
4322 LLVMAddAttribute (LLVMGetParam (method, sinfo.pindexes [i]), LLVMByValAttribute);
4327 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4328 max_block_num = MAX (max_block_num, bb->block_num);
4329 ctx->bblocks = bblocks = g_new0 (BBInfo, max_block_num + 1);
4331 /* Add branches between non-consecutive bblocks */
4332 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4333 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
4334 bb->next_bb != bb->last_ins->inst_false_bb) {
4336 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
4337 inst->opcode = OP_BR;
4338 inst->inst_target_bb = bb->last_ins->inst_false_bb;
4339 mono_bblock_add_inst (bb, inst);
4344 * The INDIRECT flag added by OP_LDADDR inhibits optimizations, even if the LDADDR
4345 * was later optimized away, so clear these flags, and add them back for the still
4346 * present OP_LDADDR instructions.
4348 for (i = 0; i < cfg->next_vreg; ++i) {
4351 ins = get_vreg_to_inst (cfg, i);
4352 if (ins && ins != cfg->rgctx_var)
4353 ins->flags &= ~MONO_INST_INDIRECT;
4357 * Make a first pass over the code to precreate PHI nodes/set INDIRECT flags.
4359 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4361 LLVMBuilderRef builder;
4363 char dname_buf[128];
4365 builder = create_builder (ctx);
4367 for (ins = bb->code; ins; ins = ins->next) {
4368 switch (ins->opcode) {
4373 LLVMTypeRef phi_type = llvm_type_to_stack_type (type_to_llvm_type (ctx, &ins->klass->byval_arg));
4375 CHECK_FAILURE (ctx);
4377 if (ins->opcode == OP_VPHI) {
4378 /* Treat valuetype PHI nodes as operating on the address itself */
4379 g_assert (ins->klass);
4380 phi_type = LLVMPointerType (type_to_llvm_type (ctx, &ins->klass->byval_arg), 0);
4384 * Have to precreate these, as they can be referenced by
4385 * earlier instructions.
4387 sprintf (dname_buf, "t%d", ins->dreg);
4389 values [ins->dreg] = LLVMBuildPhi (builder, phi_type, dname);
4391 if (ins->opcode == OP_VPHI)
4392 ctx->addresses [ins->dreg] = values [ins->dreg];
4394 g_ptr_array_add (phi_values, values [ins->dreg]);
4397 * Set the expected type of the incoming arguments since these have
4398 * to have the same type.
4400 for (i = 0; i < ins->inst_phi_args [0]; i++) {
4401 int sreg1 = ins->inst_phi_args [i + 1];
4404 ctx->vreg_types [sreg1] = phi_type;
4409 ((MonoInst*)ins->inst_p0)->flags |= MONO_INST_INDIRECT;
4418 * Create an ordering for bblocks, use the depth first order first, then
4419 * put the exception handling bblocks last.
4421 for (bb_index = 0; bb_index < cfg->num_bblocks; ++bb_index) {
4422 bb = cfg->bblocks [bb_index];
4423 if (!(bb->region != -1 && !MONO_BBLOCK_IS_IN_REGION (bb, MONO_REGION_TRY))) {
4424 g_ptr_array_add (bblock_list, bb);
4425 bblocks [bb->block_num].added = TRUE;
4429 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4430 if (!bblocks [bb->block_num].added)
4431 g_ptr_array_add (bblock_list, bb);
4435 * Second pass: generate code.
4437 for (bb_index = 0; bb_index < bblock_list->len; ++bb_index) {
4438 bb = g_ptr_array_index (bblock_list, bb_index);
4440 if (!(bb == cfg->bb_entry || bb->in_count > 0))
4443 process_bb (ctx, bb);
4444 CHECK_FAILURE (ctx);
4447 /* Add incoming phi values */
4448 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4449 GSList *l, *ins_list;
4451 ins_list = bblocks [bb->block_num].phi_nodes;
4453 for (l = ins_list; l; l = l->next) {
4454 PhiNode *node = l->data;
4455 MonoInst *phi = node->phi;
4456 int sreg1 = node->sreg;
4457 LLVMBasicBlockRef in_bb;
4462 in_bb = get_end_bb (ctx, node->in_bb);
4464 if (ctx->unreachable [node->in_bb->block_num])
4467 if (!values [sreg1])
4468 /* Can happen with values in EH clauses */
4469 LLVM_FAILURE (ctx, "incoming phi sreg1");
4471 if (phi->opcode == OP_VPHI) {
4472 g_assert (LLVMTypeOf (ctx->addresses [sreg1]) == LLVMTypeOf (values [phi->dreg]));
4473 LLVMAddIncoming (values [phi->dreg], &ctx->addresses [sreg1], &in_bb, 1);
4475 g_assert (LLVMTypeOf (values [sreg1]) == LLVMTypeOf (values [phi->dreg]));
4476 LLVMAddIncoming (values [phi->dreg], &values [sreg1], &in_bb, 1);
4481 /* Create the SWITCH statements for ENDFINALLY instructions */
4482 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4483 BBInfo *info = &bblocks [bb->block_num];
4485 for (l = info->endfinally_switch_ins_list; l; l = l->next) {
4486 LLVMValueRef switch_ins = l->data;
4487 GSList *bb_list = info->call_handler_return_bbs;
4489 for (i = 0; i < g_slist_length (bb_list); ++i)
4490 LLVMAddCase (switch_ins, LLVMConstInt (LLVMInt32Type (), i + 1, FALSE), g_slist_nth (bb_list, i)->data);
4494 if (cfg->verbose_level > 1)
4495 mono_llvm_dump_value (method);
4497 mark_as_used (module, method);
4499 if (cfg->compile_aot) {
4500 /* Don't generate native code, keep the LLVM IR */
4501 if (cfg->compile_aot && cfg->verbose_level)
4502 printf ("%s emitted as %s\n", mono_method_full_name (cfg->method, TRUE), method_name);
4504 //LLVMVerifyFunction(method, 0);
4506 mono_llvm_optimize_method (method);
4508 if (cfg->verbose_level > 1)
4509 mono_llvm_dump_value (method);
4511 cfg->native_code = LLVMGetPointerToGlobal (ee, method);
4513 /* Set by emit_cb */
4514 g_assert (cfg->code_len);
4516 /* FIXME: Free the LLVM IL for the function */
4524 /* Need to add unused phi nodes as they can be referenced by other values */
4525 LLVMBasicBlockRef phi_bb = LLVMAppendBasicBlock (method, "PHI_BB");
4526 LLVMBuilderRef builder;
4528 builder = create_builder (ctx);
4529 LLVMPositionBuilderAtEnd (builder, phi_bb);
4531 for (i = 0; i < phi_values->len; ++i) {
4532 LLVMValueRef v = g_ptr_array_index (phi_values, i);
4533 if (LLVMGetInstructionParent (v) == NULL)
4534 LLVMInsertIntoBuilder (builder, v);
4537 LLVMDeleteFunction (method);
4542 g_free (ctx->addresses);
4543 g_free (ctx->vreg_types);
4544 g_free (ctx->vreg_cli_types);
4545 g_free (ctx->pindexes);
4546 g_free (ctx->is_dead);
4547 g_free (ctx->unreachable);
4548 g_ptr_array_free (phi_values, TRUE);
4549 g_free (ctx->bblocks);
4550 g_hash_table_destroy (ctx->region_to_handler);
4551 g_free (method_name);
4552 g_ptr_array_free (bblock_list, TRUE);
4554 for (l = ctx->builders; l; l = l->next) {
4555 LLVMBuilderRef builder = l->data;
4556 LLVMDisposeBuilder (builder);
4561 mono_native_tls_set_value (current_cfg_tls_id, NULL);
4563 mono_loader_unlock ();
4567 * mono_llvm_emit_call:
4569 * Same as mono_arch_emit_call () for LLVM.
4572 mono_llvm_emit_call (MonoCompile *cfg, MonoCallInst *call)
4575 MonoMethodSignature *sig;
4576 int i, n, stack_size;
4581 sig = call->signature;
4582 n = sig->param_count + sig->hasthis;
4584 call->cinfo = mono_arch_get_llvm_call_info (cfg, sig);
4586 if (cfg->disable_llvm)
4589 if (sig->call_convention == MONO_CALL_VARARG) {
4590 cfg->exception_message = g_strdup ("varargs");
4591 cfg->disable_llvm = TRUE;
4594 for (i = 0; i < n; ++i) {
4597 ainfo = call->cinfo->args + i;
4599 in = call->args [i];
4601 /* Simply remember the arguments */
4602 switch (ainfo->storage) {
4604 case LLVMArgInFPReg: {
4605 MonoType *t = (sig->hasthis && i == 0) ? &mono_get_intptr_class ()->byval_arg : sig->params [i - sig->hasthis];
4607 if (!t->byref && (t->type == MONO_TYPE_R8 || t->type == MONO_TYPE_R4)) {
4608 MONO_INST_NEW (cfg, ins, OP_FMOVE);
4609 ins->dreg = mono_alloc_freg (cfg);
4611 MONO_INST_NEW (cfg, ins, OP_MOVE);
4612 ins->dreg = mono_alloc_ireg (cfg);
4614 ins->sreg1 = in->dreg;
4617 case LLVMArgVtypeByVal:
4618 case LLVMArgVtypeInReg:
4619 MONO_INST_NEW (cfg, ins, OP_LLVM_OUTARG_VT);
4620 ins->dreg = mono_alloc_ireg (cfg);
4621 ins->sreg1 = in->dreg;
4622 ins->klass = mono_class_from_mono_type (sig->params [i - sig->hasthis]);
4625 call->cinfo = mono_arch_get_llvm_call_info (cfg, sig);
4626 cfg->exception_message = g_strdup ("ainfo->storage");
4627 cfg->disable_llvm = TRUE;
4631 if (!cfg->disable_llvm) {
4632 MONO_ADD_INS (cfg->cbb, ins);
4633 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, 0, FALSE);
4638 static unsigned char*
4639 alloc_cb (LLVMValueRef function, int size)
4643 cfg = mono_native_tls_get_value (current_cfg_tls_id);
4647 return mono_domain_code_reserve (cfg->domain, size);
4649 return mono_domain_code_reserve (mono_domain_get (), size);
4654 emitted_cb (LLVMValueRef function, void *start, void *end)
4658 cfg = mono_native_tls_get_value (current_cfg_tls_id);
4660 cfg->code_len = (guint8*)end - (guint8*)start;
4664 exception_cb (void *data)
4667 MonoJitExceptionInfo *ei;
4668 guint32 ei_len, i, j, nested_len, nindex;
4669 gpointer *type_info;
4670 int this_reg, this_offset;
4672 cfg = mono_native_tls_get_value (current_cfg_tls_id);
4676 * data points to a DWARF FDE structure, convert it to our unwind format and
4678 * An alternative would be to save it directly, and modify our unwinder to work
4681 cfg->encoded_unwind_ops = mono_unwind_decode_fde ((guint8*)data, &cfg->encoded_unwind_ops_len, NULL, &ei, &ei_len, &type_info, &this_reg, &this_offset);
4683 /* Count nested clauses */
4685 for (i = 0; i < ei_len; ++i) {
4686 for (j = 0; j < ei_len; ++j) {
4687 gint32 cindex1 = *(gint32*)type_info [i];
4688 MonoExceptionClause *clause1 = &cfg->header->clauses [cindex1];
4689 gint32 cindex2 = *(gint32*)type_info [j];
4690 MonoExceptionClause *clause2 = &cfg->header->clauses [cindex2];
4692 if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset) {
4698 cfg->llvm_ex_info = mono_mempool_alloc0 (cfg->mempool, (ei_len + nested_len) * sizeof (MonoJitExceptionInfo));
4699 cfg->llvm_ex_info_len = ei_len + nested_len;
4700 memcpy (cfg->llvm_ex_info, ei, ei_len * sizeof (MonoJitExceptionInfo));
4701 /* Fill the rest of the information from the type info */
4702 for (i = 0; i < ei_len; ++i) {
4703 gint32 clause_index = *(gint32*)type_info [i];
4704 MonoExceptionClause *clause = &cfg->header->clauses [clause_index];
4706 cfg->llvm_ex_info [i].flags = clause->flags;
4707 cfg->llvm_ex_info [i].data.catch_class = clause->data.catch_class;
4711 * For nested clauses, the LLVM produced exception info associates the try interval with
4712 * the innermost handler, while mono expects it to be associated with all nesting clauses.
4714 /* FIXME: These should be order with the normal clauses */
4716 for (i = 0; i < ei_len; ++i) {
4717 for (j = 0; j < ei_len; ++j) {
4718 gint32 cindex1 = *(gint32*)type_info [i];
4719 MonoExceptionClause *clause1 = &cfg->header->clauses [cindex1];
4720 gint32 cindex2 = *(gint32*)type_info [j];
4721 MonoExceptionClause *clause2 = &cfg->header->clauses [cindex2];
4723 if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset) {
4725 * The try interval comes from the nested clause, everything else from the
4728 memcpy (&cfg->llvm_ex_info [nindex], &cfg->llvm_ex_info [j], sizeof (MonoJitExceptionInfo));
4729 cfg->llvm_ex_info [nindex].try_start = cfg->llvm_ex_info [i].try_start;
4730 cfg->llvm_ex_info [nindex].try_end = cfg->llvm_ex_info [i].try_end;
4735 g_assert (nindex == ei_len + nested_len);
4736 cfg->llvm_this_reg = this_reg;
4737 cfg->llvm_this_offset = this_offset;
4739 /* type_info [i] is cfg mempool allocated, no need to free it */
4746 dlsym_cb (const char *name, void **symbol)
4752 if (!strcmp (name, "__bzero")) {
4753 *symbol = (void*)bzero;
4755 current = mono_dl_open (NULL, 0, NULL);
4758 err = mono_dl_symbol (current, name, symbol);
4760 #ifdef MONO_ARCH_HAVE_CREATE_LLVM_NATIVE_THUNK
4761 *symbol = (char*)mono_arch_create_llvm_native_thunk (mono_domain_get (), (guint8*)(*symbol));
4767 AddFunc (LLVMModuleRef module, const char *name, LLVMTypeRef ret_type, LLVMTypeRef *param_types, int nparams)
4769 LLVMAddFunction (module, name, LLVMFunctionType (ret_type, param_types, nparams, FALSE));
4773 AddFunc2 (LLVMModuleRef module, const char *name, LLVMTypeRef ret_type, LLVMTypeRef param_type1, LLVMTypeRef param_type2)
4775 LLVMTypeRef param_types [4];
4777 param_types [0] = param_type1;
4778 param_types [1] = param_type2;
4780 AddFunc (module, name, ret_type, param_types, 2);
4784 add_intrinsics (LLVMModuleRef module)
4786 /* Emit declarations of instrinsics */
4788 * It would be nicer to emit only the intrinsics actually used, but LLVM's Module
4789 * type doesn't seem to do any locking.
4792 LLVMTypeRef memset_params [] = { LLVMPointerType (LLVMInt8Type (), 0), LLVMInt8Type (), LLVMInt32Type (), LLVMInt32Type (), LLVMInt1Type () };
4794 memset_param_count = 5;
4795 memset_func_name = "llvm.memset.p0i8.i32";
4797 LLVMAddFunction (module, memset_func_name, LLVMFunctionType (LLVMVoidType (), memset_params, memset_param_count, FALSE));
4801 LLVMTypeRef memcpy_params [] = { LLVMPointerType (LLVMInt8Type (), 0), LLVMPointerType (LLVMInt8Type (), 0), LLVMInt32Type (), LLVMInt32Type (), LLVMInt1Type () };
4803 memcpy_param_count = 5;
4804 memcpy_func_name = "llvm.memcpy.p0i8.p0i8.i32";
4806 LLVMAddFunction (module, memcpy_func_name, LLVMFunctionType (LLVMVoidType (), memcpy_params, memcpy_param_count, FALSE));
4810 LLVMTypeRef params [] = { LLVMDoubleType () };
4812 LLVMAddFunction (module, "llvm.sin.f64", LLVMFunctionType (LLVMDoubleType (), params, 1, FALSE));
4813 LLVMAddFunction (module, "llvm.cos.f64", LLVMFunctionType (LLVMDoubleType (), params, 1, FALSE));
4814 LLVMAddFunction (module, "llvm.sqrt.f64", LLVMFunctionType (LLVMDoubleType (), params, 1, FALSE));
4816 /* This isn't an intrinsic, instead llvm seems to special case it by name */
4817 LLVMAddFunction (module, "fabs", LLVMFunctionType (LLVMDoubleType (), params, 1, FALSE));
4821 LLVMTypeRef ovf_res_i32 [] = { LLVMInt32Type (), LLVMInt1Type () };
4822 LLVMTypeRef ovf_params_i32 [] = { LLVMInt32Type (), LLVMInt32Type () };
4824 LLVMAddFunction (module, "llvm.sadd.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4825 LLVMAddFunction (module, "llvm.uadd.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4826 LLVMAddFunction (module, "llvm.ssub.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4827 LLVMAddFunction (module, "llvm.usub.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4828 LLVMAddFunction (module, "llvm.smul.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4829 LLVMAddFunction (module, "llvm.umul.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4833 LLVMTypeRef ovf_res_i64 [] = { LLVMInt64Type (), LLVMInt1Type () };
4834 LLVMTypeRef ovf_params_i64 [] = { LLVMInt64Type (), LLVMInt64Type () };
4836 LLVMAddFunction (module, "llvm.sadd.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4837 LLVMAddFunction (module, "llvm.uadd.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4838 LLVMAddFunction (module, "llvm.ssub.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4839 LLVMAddFunction (module, "llvm.usub.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4840 LLVMAddFunction (module, "llvm.smul.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4841 LLVMAddFunction (module, "llvm.umul.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4845 LLVMTypeRef struct_ptr = LLVMPointerType (LLVMStructType (NULL, 0, FALSE), 0);
4846 LLVMTypeRef invariant_start_params [] = { LLVMInt64Type (), LLVMPointerType (LLVMInt8Type (), 0) };
4847 LLVMTypeRef invariant_end_params [] = { struct_ptr, LLVMInt64Type (), LLVMPointerType (LLVMInt8Type (), 0) };
4849 LLVMAddFunction (module, "llvm.invariant.start", LLVMFunctionType (struct_ptr, invariant_start_params, 2, FALSE));
4851 LLVMAddFunction (module, "llvm.invariant.end", LLVMFunctionType (LLVMVoidType (), invariant_end_params, 3, FALSE));
4856 LLVMTypeRef arg_types [2];
4857 LLVMTypeRef ret_type;
4859 arg_types [0] = LLVMPointerType (LLVMInt8Type (), 0);
4860 arg_types [1] = LLVMPointerType (LLVMInt8Type (), 0);
4861 ret_type = LLVMInt32Type ();
4863 LLVMAddFunction (module, "mono_personality", LLVMFunctionType (LLVMVoidType (), NULL, 0, FALSE));
4865 LLVMAddFunction (module, "llvm_resume_unwind_trampoline", LLVMFunctionType (LLVMVoidType (), NULL, 0, FALSE));
4868 /* SSE intrinsics */
4870 LLVMTypeRef ret_type, arg_types [16];
4873 ret_type = type_to_simd_type (MONO_TYPE_I4);
4874 arg_types [0] = ret_type;
4875 arg_types [1] = ret_type;
4876 AddFunc (module, "llvm.x86.sse41.pminud", ret_type, arg_types, 2);
4877 AddFunc (module, "llvm.x86.sse41.pmaxud", ret_type, arg_types, 2);
4879 ret_type = type_to_simd_type (MONO_TYPE_I2);
4880 arg_types [0] = ret_type;
4881 arg_types [1] = ret_type;
4882 AddFunc (module, "llvm.x86.sse41.pminuw", ret_type, arg_types, 2);
4883 AddFunc (module, "llvm.x86.sse2.pmins.w", ret_type, arg_types, 2);
4884 AddFunc (module, "llvm.x86.sse41.pmaxuw", ret_type, arg_types, 2);
4885 AddFunc (module, "llvm.x86.sse2.padds.w", ret_type, arg_types, 2);
4886 AddFunc (module, "llvm.x86.sse2.psubs.w", ret_type, arg_types, 2);
4887 AddFunc (module, "llvm.x86.sse2.paddus.w", ret_type, arg_types, 2);
4888 AddFunc (module, "llvm.x86.sse2.psubus.w", ret_type, arg_types, 2);
4889 AddFunc (module, "llvm.x86.sse2.pavg.w", ret_type, arg_types, 2);
4890 AddFunc (module, "llvm.x86.sse2.pmulh.w", ret_type, arg_types, 2);
4891 AddFunc (module, "llvm.x86.sse2.pmulhu.w", ret_type, arg_types, 2);
4893 ret_type = type_to_simd_type (MONO_TYPE_I1);
4894 arg_types [0] = ret_type;
4895 arg_types [1] = ret_type;
4896 AddFunc (module, "llvm.x86.sse2.pminu.b", ret_type, arg_types, 2);
4897 AddFunc (module, "llvm.x86.sse2.pmaxu.b", ret_type, arg_types, 2);
4898 AddFunc (module, "llvm.x86.sse2.padds.b", ret_type, arg_types, 2);
4899 AddFunc (module, "llvm.x86.sse2.psubs.b", ret_type, arg_types, 2);
4900 AddFunc (module, "llvm.x86.sse2.paddus.b", ret_type, arg_types, 2);
4901 AddFunc (module, "llvm.x86.sse2.psubus.b", ret_type, arg_types, 2);
4902 AddFunc (module, "llvm.x86.sse2.pavg.b", ret_type, arg_types, 2);
4904 ret_type = type_to_simd_type (MONO_TYPE_R8);
4905 arg_types [0] = ret_type;
4906 arg_types [1] = ret_type;
4907 AddFunc (module, "llvm.x86.sse2.min.pd", ret_type, arg_types, 2);
4908 AddFunc (module, "llvm.x86.sse2.max.pd", ret_type, arg_types, 2);
4909 AddFunc (module, "llvm.x86.sse3.hadd.pd", ret_type, arg_types, 2);
4910 AddFunc (module, "llvm.x86.sse3.hsub.pd", ret_type, arg_types, 2);
4911 AddFunc (module, "llvm.x86.sse3.addsub.pd", ret_type, arg_types, 2);
4913 ret_type = type_to_simd_type (MONO_TYPE_R4);
4914 arg_types [0] = ret_type;
4915 arg_types [1] = ret_type;
4916 AddFunc (module, "llvm.x86.sse.min.ps", ret_type, arg_types, 2);
4917 AddFunc (module, "llvm.x86.sse.max.ps", ret_type, arg_types, 2);
4918 AddFunc (module, "llvm.x86.sse3.hadd.ps", ret_type, arg_types, 2);
4919 AddFunc (module, "llvm.x86.sse3.hsub.ps", ret_type, arg_types, 2);
4920 AddFunc (module, "llvm.x86.sse3.addsub.ps", ret_type, arg_types, 2);
4923 ret_type = type_to_simd_type (MONO_TYPE_I1);
4924 arg_types [0] = type_to_simd_type (MONO_TYPE_I2);
4925 arg_types [1] = type_to_simd_type (MONO_TYPE_I2);
4926 AddFunc (module, "llvm.x86.sse2.packsswb.128", ret_type, arg_types, 2);
4927 AddFunc (module, "llvm.x86.sse2.packuswb.128", ret_type, arg_types, 2);
4928 ret_type = type_to_simd_type (MONO_TYPE_I2);
4929 arg_types [0] = type_to_simd_type (MONO_TYPE_I4);
4930 arg_types [1] = type_to_simd_type (MONO_TYPE_I4);
4931 AddFunc (module, "llvm.x86.sse2.packssdw.128", ret_type, arg_types, 2);
4932 AddFunc (module, "llvm.x86.sse41.packusdw", ret_type, arg_types, 2);
4935 ret_type = type_to_simd_type (MONO_TYPE_R8);
4936 arg_types [0] = ret_type;
4937 arg_types [1] = ret_type;
4938 arg_types [2] = LLVMInt8Type ();
4939 AddFunc (module, "llvm.x86.sse2.cmp.pd", ret_type, arg_types, 3);
4940 ret_type = type_to_simd_type (MONO_TYPE_R4);
4941 arg_types [0] = ret_type;
4942 arg_types [1] = ret_type;
4943 arg_types [2] = LLVMInt8Type ();
4944 AddFunc (module, "llvm.x86.sse.cmp.ps", ret_type, arg_types, 3);
4946 /* Conversion ops */
4947 ret_type = type_to_simd_type (MONO_TYPE_R8);
4948 arg_types [0] = type_to_simd_type (MONO_TYPE_I4);
4949 AddFunc (module, "llvm.x86.sse2.cvtdq2pd", ret_type, arg_types, 1);
4950 ret_type = type_to_simd_type (MONO_TYPE_R4);
4951 arg_types [0] = type_to_simd_type (MONO_TYPE_I4);
4952 AddFunc (module, "llvm.x86.sse2.cvtdq2ps", ret_type, arg_types, 1);
4953 ret_type = type_to_simd_type (MONO_TYPE_I4);
4954 arg_types [0] = type_to_simd_type (MONO_TYPE_R8);
4955 AddFunc (module, "llvm.x86.sse2.cvtpd2dq", ret_type, arg_types, 1);
4956 ret_type = type_to_simd_type (MONO_TYPE_I4);
4957 arg_types [0] = type_to_simd_type (MONO_TYPE_R4);
4958 AddFunc (module, "llvm.x86.sse2.cvtps2dq", ret_type, arg_types, 1);
4959 ret_type = type_to_simd_type (MONO_TYPE_R4);
4960 arg_types [0] = type_to_simd_type (MONO_TYPE_R8);
4961 AddFunc (module, "llvm.x86.sse2.cvtpd2ps", ret_type, arg_types, 1);
4962 ret_type = type_to_simd_type (MONO_TYPE_R8);
4963 arg_types [0] = type_to_simd_type (MONO_TYPE_R4);
4964 AddFunc (module, "llvm.x86.sse2.cvtps2pd", ret_type, arg_types, 1);
4966 ret_type = type_to_simd_type (MONO_TYPE_I4);
4967 arg_types [0] = type_to_simd_type (MONO_TYPE_R8);
4968 AddFunc (module, "llvm.x86.sse2.cvttpd2dq", ret_type, arg_types, 1);
4969 ret_type = type_to_simd_type (MONO_TYPE_I4);
4970 arg_types [0] = type_to_simd_type (MONO_TYPE_R4);
4971 AddFunc (module, "llvm.x86.sse2.cvttps2dq", ret_type, arg_types, 1);
4974 ret_type = type_to_simd_type (MONO_TYPE_R8);
4975 arg_types [0] = ret_type;
4976 AddFunc (module, "llvm.x86.sse2.sqrt.pd", ret_type, arg_types, 1);
4977 ret_type = type_to_simd_type (MONO_TYPE_R4);
4978 arg_types [0] = ret_type;
4979 AddFunc (module, "llvm.x86.sse.sqrt.ps", ret_type, arg_types, 1);
4980 ret_type = type_to_simd_type (MONO_TYPE_R4);
4981 arg_types [0] = ret_type;
4982 AddFunc (module, "llvm.x86.sse.rsqrt.ps", ret_type, arg_types, 1);
4983 ret_type = type_to_simd_type (MONO_TYPE_R4);
4984 arg_types [0] = ret_type;
4985 AddFunc (module, "llvm.x86.sse.rcp.ps", ret_type, arg_types, 1);
4988 ret_type = type_to_simd_type (MONO_TYPE_I2);
4989 arg_types [0] = ret_type;
4990 arg_types [1] = LLVMInt32Type ();
4991 AddFunc (module, "llvm.x86.sse2.psrli.w", ret_type, arg_types, 2);
4992 AddFunc (module, "llvm.x86.sse2.psrai.w", ret_type, arg_types, 2);
4993 AddFunc (module, "llvm.x86.sse2.pslli.w", ret_type, arg_types, 2);
4994 ret_type = type_to_simd_type (MONO_TYPE_I4);
4995 arg_types [0] = ret_type;
4996 arg_types [1] = LLVMInt32Type ();
4997 AddFunc (module, "llvm.x86.sse2.psrli.d", ret_type, arg_types, 2);
4998 AddFunc (module, "llvm.x86.sse2.psrai.d", ret_type, arg_types, 2);
4999 AddFunc (module, "llvm.x86.sse2.pslli.d", ret_type, arg_types, 2);
5000 ret_type = type_to_simd_type (MONO_TYPE_I8);
5001 arg_types [0] = ret_type;
5002 arg_types [1] = LLVMInt32Type ();
5003 AddFunc (module, "llvm.x86.sse2.psrli.q", ret_type, arg_types, 2);
5004 AddFunc (module, "llvm.x86.sse2.pslli.q", ret_type, arg_types, 2);
5007 ret_type = LLVMInt32Type ();
5008 arg_types [0] = type_to_simd_type (MONO_TYPE_I1);
5009 AddFunc (module, "llvm.x86.sse2.pmovmskb.128", ret_type, arg_types, 1);
5012 AddFunc (module, "llvm.x86.sse2.pause", LLVMVoidType (), NULL, 0);
5014 /* Load/Store intrinsics */
5016 LLVMTypeRef arg_types [5];
5020 for (i = 1; i <= 8; i *= 2) {
5021 arg_types [0] = LLVMPointerType (LLVMIntType (i * 8), 0);
5022 arg_types [1] = LLVMInt32Type ();
5023 arg_types [2] = LLVMInt1Type ();
5024 sprintf (name, "llvm.mono.load.i%d.p0i%d", i * 8, i * 8);
5025 LLVMAddFunction (module, name, LLVMFunctionType (LLVMIntType (i * 8), arg_types, 3, FALSE));
5027 arg_types [0] = LLVMIntType (i * 8);
5028 arg_types [1] = LLVMPointerType (LLVMIntType (i * 8), 0);
5029 arg_types [2] = LLVMInt32Type ();
5030 arg_types [3] = LLVMInt1Type ();
5031 sprintf (name, "llvm.mono.store.i%d.p0i%d", i * 8, i * 8);
5032 LLVMAddFunction (module, name, LLVMFunctionType (LLVMVoidType (), arg_types, 4, FALSE));
5038 mono_llvm_init (void)
5040 mono_native_tls_alloc (¤t_cfg_tls_id, NULL);
5044 init_jit_module (void)
5046 MonoJitICallInfo *info;
5048 if (jit_module_inited)
5051 mono_loader_lock ();
5053 if (jit_module_inited) {
5054 mono_loader_unlock ();
5058 jit_module.module = LLVMModuleCreateWithName ("mono");
5060 ee = mono_llvm_create_ee (LLVMCreateModuleProviderForExistingModule (jit_module.module), alloc_cb, emitted_cb, exception_cb, dlsym_cb);
5062 add_intrinsics (jit_module.module);
5064 jit_module.llvm_types = g_hash_table_new (NULL, NULL);
5066 info = mono_find_jit_icall_by_name ("llvm_resume_unwind_trampoline");
5068 LLVMAddGlobalMapping (ee, LLVMGetNamedFunction (jit_module.module, "llvm_resume_unwind_trampoline"), (void*)info->func);
5070 jit_module_inited = TRUE;
5072 mono_loader_unlock ();
5076 mono_llvm_cleanup (void)
5079 mono_llvm_dispose_ee (ee);
5081 if (jit_module.llvm_types)
5082 g_hash_table_destroy (jit_module.llvm_types);
5084 if (aot_module.module)
5085 LLVMDisposeModule (aot_module.module);
5087 LLVMContextDispose (LLVMGetGlobalContext ());
5091 mono_llvm_create_aot_module (const char *got_symbol)
5093 /* Delete previous module */
5094 if (aot_module.plt_entries)
5095 g_hash_table_destroy (aot_module.plt_entries);
5096 if (aot_module.module)
5097 LLVMDisposeModule (aot_module.module);
5099 memset (&aot_module, 0, sizeof (aot_module));
5101 aot_module.module = LLVMModuleCreateWithName ("aot");
5102 aot_module.got_symbol = got_symbol;
5104 add_intrinsics (aot_module.module);
5108 * We couldn't compute the type of the LLVM global representing the got because
5109 * its size is only known after all the methods have been emitted. So create
5110 * a dummy variable, and replace all uses it with the real got variable when
5111 * its size is known in mono_llvm_emit_aot_module ().
5114 LLVMTypeRef got_type = LLVMArrayType (IntPtrType (), 0);
5116 aot_module.got_var = LLVMAddGlobal (aot_module.module, got_type, "mono_dummy_got");
5117 LLVMSetInitializer (aot_module.got_var, LLVMConstNull (got_type));
5120 /* Add a dummy personality function */
5122 LLVMBasicBlockRef lbb;
5123 LLVMBuilderRef lbuilder;
5124 LLVMValueRef personality;
5126 personality = LLVMAddFunction (aot_module.module, "mono_aot_personality", LLVMFunctionType (LLVMVoidType (), NULL, 0, FALSE));
5127 LLVMSetLinkage (personality, LLVMPrivateLinkage);
5128 lbb = LLVMAppendBasicBlock (personality, "BB0");
5129 lbuilder = LLVMCreateBuilder ();
5130 LLVMPositionBuilderAtEnd (lbuilder, lbb);
5131 LLVMBuildRetVoid (lbuilder);
5134 aot_module.llvm_types = g_hash_table_new (NULL, NULL);
5135 aot_module.plt_entries = g_hash_table_new (g_str_hash, g_str_equal);
5139 * Emit the aot module into the LLVM bitcode file FILENAME.
5142 mono_llvm_emit_aot_module (const char *filename, int got_size)
5144 LLVMTypeRef got_type;
5145 LLVMValueRef real_got;
5148 * Create the real got variable and replace all uses of the dummy variable with
5151 got_type = LLVMArrayType (IntPtrType (), got_size);
5152 real_got = LLVMAddGlobal (aot_module.module, got_type, aot_module.got_symbol);
5153 LLVMSetInitializer (real_got, LLVMConstNull (got_type));
5154 LLVMSetLinkage (real_got, LLVMInternalLinkage);
5156 mono_llvm_replace_uses_of (aot_module.got_var, real_got);
5158 mark_as_used (aot_module.module, real_got);
5160 /* Delete the dummy got so it doesn't become a global */
5161 LLVMDeleteGlobal (aot_module.got_var);
5167 if (LLVMVerifyModule (aot_module.module, LLVMReturnStatusAction, &verifier_err)) {
5168 g_assert_not_reached ();
5173 LLVMWriteBitcodeToFile (aot_module.module, filename);
5178 - Emit LLVM IR from the mono IR using the LLVM C API.
5179 - The original arch specific code remains, so we can fall back to it if we run
5180 into something we can't handle.
5184 A partial list of issues:
5185 - Handling of opcodes which can throw exceptions.
5187 In the mono JIT, these are implemented using code like this:
5194 push throw_pos - method
5195 call <exception trampoline>
5197 The problematic part is push throw_pos - method, which cannot be represented
5198 in the LLVM IR, since it does not support label values.
5199 -> this can be implemented in AOT mode using inline asm + labels, but cannot
5200 be implemented in JIT mode ?
5201 -> a possible but slower implementation would use the normal exception
5202 throwing code but it would need to control the placement of the throw code
5203 (it needs to be exactly after the compare+branch).
5204 -> perhaps add a PC offset intrinsics ?
5206 - efficient implementation of .ovf opcodes.
5208 These are currently implemented as:
5209 <ins which sets the condition codes>
5212 Some overflow opcodes are now supported by LLVM SVN.
5214 - exception handling, unwinding.
5215 - SSA is disabled for methods with exception handlers
5216 - How to obtain unwind info for LLVM compiled methods ?
5217 -> this is now solved by converting the unwind info generated by LLVM
5219 - LLVM uses the c++ exception handling framework, while we use our home grown
5220 code, and couldn't use the c++ one:
5221 - its not supported under VC++, other exotic platforms.
5222 - it might be impossible to support filter clauses with it.
5226 The trampolines need a predictable call sequence, since they need to disasm
5227 the calling code to obtain register numbers / offsets.
5229 LLVM currently generates this code in non-JIT mode:
5230 mov -0x98(%rax),%eax
5232 Here, the vtable pointer is lost.
5233 -> solution: use one vtable trampoline per class.
5235 - passing/receiving the IMT pointer/RGCTX.
5236 -> solution: pass them as normal arguments ?
5240 LLVM does not allow the specification of argument registers etc. This means
5241 that all calls are made according to the platform ABI.
5243 - passing/receiving vtypes.
5245 Vtypes passed/received in registers are handled by the front end by using
5246 a signature with scalar arguments, and loading the parts of the vtype into those
5249 Vtypes passed on the stack are handled using the 'byval' attribute.
5253 Supported though alloca, we need to emit the load/store code.
5257 The mono JIT uses pointer sized iregs/double fregs, while LLVM uses precisely
5258 typed registers, so we have to keep track of the precise LLVM type of each vreg.
5259 This is made easier because the IR is already in SSA form.
5260 An additional problem is that our IR is not consistent with types, i.e. i32/ia64
5261 types are frequently used incorrectly.
5266 Emit LLVM bytecode into a .bc file, compile it using llc into a .s file, then
5267 append the AOT data structures to that file. For methods which cannot be
5268 handled by LLVM, the normal JIT compiled versions are used.
5271 /* FIXME: Normalize some aspects of the mono IR to allow easier translation, like:
5272 * - each bblock should end with a branch
5273 * - setting the return value, making cfg->ret non-volatile
5274 * - avoid some transformations in the JIT which make it harder for us to generate
5276 * - use pointer types to help optimizations.