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 #ifdef MONO_ARCH_SIMD_INTRINSICS
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 #ifdef MONO_ARCH_SIMD_INTRINSICS
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 len = sizeof (LLVMValueRef) * ((sig->param_count * 2) + sig->hasthis + vretaddr + call->rgctx_reg);
1947 args = alloca (len);
1948 memset (args, 0, len);
1949 l = call->out_ireg_args;
1951 if (call->rgctx_arg_reg) {
1952 g_assert (values [call->rgctx_arg_reg]);
1953 args [sinfo.rgctx_arg_pindex] = values [call->rgctx_arg_reg];
1955 if (call->imt_arg_reg) {
1956 g_assert (values [call->imt_arg_reg]);
1957 args [sinfo.imt_arg_pindex] = values [call->imt_arg_reg];
1961 if (!addresses [call->inst.dreg])
1962 addresses [call->inst.dreg] = build_alloca (ctx, sig->ret);
1963 args [sinfo.vret_arg_pindex] = LLVMBuildPtrToInt (builder, addresses [call->inst.dreg], IntPtrType (), "");
1966 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
1969 LLVMArgInfo *ainfo = call->cinfo ? &call->cinfo->args [i] : NULL;
1973 pindex = sinfo.this_arg_pindex;
1975 pindex = sinfo.pindexes [i - 1];
1977 pindex = sinfo.pindexes [i];
1980 regpair = (guint32)(gssize)(l->data);
1981 reg = regpair & 0xffffff;
1982 args [pindex] = values [reg];
1983 if (ainfo->storage == LLVMArgVtypeInReg) {
1985 LLVMValueRef regs [2];
1990 g_assert (addresses [reg]);
1992 emit_vtype_to_reg (ctx, builder, sig->params [i - sig->hasthis], addresses [reg], ainfo, regs, &nregs);
1993 for (j = 0; j < nregs; ++j)
1994 args [pindex ++] = regs [j];
1997 // FIXME: Get rid of the VMOVE
1998 } else if (ainfo->storage == LLVMArgVtypeByVal) {
1999 g_assert (addresses [reg]);
2000 args [pindex] = addresses [reg];
2002 g_assert (args [pindex]);
2003 if (i == 0 && sig->hasthis)
2004 args [pindex] = convert (ctx, args [pindex], IntPtrType ());
2006 args [pindex] = convert (ctx, args [pindex], type_to_llvm_arg_type (ctx, sig->params [i - sig->hasthis]));
2012 // FIXME: Align call sites
2018 lcall = emit_call (ctx, bb, &builder, callee, args, LLVMCountParamTypes (llvm_sig));
2020 #ifdef LLVM_MONO_BRANCH
2022 * Modify cconv and parameter attributes to pass rgctx/imt correctly.
2024 #if defined(MONO_ARCH_IMT_REG) && defined(MONO_ARCH_RGCTX_REG)
2025 g_assert (MONO_ARCH_IMT_REG == MONO_ARCH_RGCTX_REG);
2027 /* The two can't be used together, so use only one LLVM calling conv to pass them */
2028 g_assert (!(call->rgctx_arg_reg && call->imt_arg_reg));
2030 LLVMSetInstructionCallConv (lcall, LLVMMono1CallConv);
2032 if (call->rgctx_arg_reg)
2033 LLVMAddInstrAttribute (lcall, 1 + sinfo.rgctx_arg_pindex, LLVMInRegAttribute);
2034 if (call->imt_arg_reg)
2035 LLVMAddInstrAttribute (lcall, 1 + sinfo.imt_arg_pindex, LLVMInRegAttribute);
2038 /* Add byval attributes if needed */
2039 for (i = 0; i < sig->param_count; ++i) {
2040 LLVMArgInfo *ainfo = call->cinfo ? &call->cinfo->args [i + sig->hasthis] : NULL;
2042 if (ainfo && ainfo->storage == LLVMArgVtypeByVal) {
2043 LLVMAddInstrAttribute (lcall, 1 + sinfo.pindexes [i], LLVMByValAttribute);
2048 * Convert the result
2050 if (cinfo && cinfo->ret.storage == LLVMArgVtypeInReg) {
2051 LLVMValueRef regs [2];
2053 if (!addresses [ins->dreg])
2054 addresses [ins->dreg] = build_alloca (ctx, sig->ret);
2056 regs [0] = LLVMBuildExtractValue (builder, lcall, 0, "");
2057 if (cinfo->ret.pair_storage [1] != LLVMArgNone)
2058 regs [1] = LLVMBuildExtractValue (builder, lcall, 1, "");
2060 emit_reg_to_vtype (ctx, builder, sig->ret, addresses [ins->dreg], &cinfo->ret, regs);
2061 } else if (sig->ret->type != MONO_TYPE_VOID && !vretaddr) {
2062 /* If the method returns an unsigned value, need to zext it */
2064 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));
2067 *builder_ref = ctx->builder;
2069 g_free (sinfo.pindexes);
2077 process_bb (EmitContext *ctx, MonoBasicBlock *bb)
2079 MonoCompile *cfg = ctx->cfg;
2080 MonoMethodSignature *sig = ctx->sig;
2081 LLVMValueRef method = ctx->lmethod;
2082 LLVMValueRef *values = ctx->values;
2083 LLVMValueRef *addresses = ctx->addresses;
2085 LLVMCallInfo *linfo = ctx->linfo;
2086 LLVMModuleRef module = ctx->module;
2087 BBInfo *bblocks = ctx->bblocks;
2089 LLVMBasicBlockRef cbb;
2090 LLVMBuilderRef builder, starting_builder;
2091 gboolean has_terminator;
2093 LLVMValueRef lhs, rhs;
2096 cbb = get_bb (ctx, bb);
2097 builder = create_builder (ctx);
2098 ctx->builder = builder;
2099 LLVMPositionBuilderAtEnd (builder, cbb);
2101 if (bb == cfg->bb_entry)
2102 emit_entry_bb (ctx, builder);
2103 CHECK_FAILURE (ctx);
2105 if (bb->flags & BB_EXCEPTION_HANDLER) {
2107 LLVMValueRef personality;
2108 LLVMBasicBlockRef target_bb;
2110 static gint32 mapping_inited;
2111 static int ti_generator;
2114 LLVMValueRef type_info;
2117 if (!bblocks [bb->block_num].invoke_target) {
2119 * LLVM asserts if llvm.eh.selector is called from a bblock which
2120 * doesn't have an invoke pointing at it.
2121 * Update: LLVM no longer asserts, but some tests in exceptions.exe now fail.
2123 LLVM_FAILURE (ctx, "handler without invokes");
2126 // <resultval> = landingpad <somety> personality <type> <pers_fn> <clause>+
2128 if (cfg->compile_aot) {
2129 /* Use a dummy personality function */
2130 personality = LLVMGetNamedFunction (module, "mono_aot_personality");
2131 g_assert (personality);
2133 personality = LLVMGetNamedFunction (module, "mono_personality");
2134 if (InterlockedCompareExchange (&mapping_inited, 1, 0) == 0)
2135 LLVMAddGlobalMapping (ee, personality, mono_personality);
2138 i8ptr = LLVMPointerType (LLVMInt8Type (), 0);
2140 clause_index = (mono_get_block_region_notry (cfg, bb->region) >> 8) - 1;
2143 * Create the type info
2145 sprintf (ti_name, "type_info_%d", ti_generator);
2148 if (cfg->compile_aot) {
2149 /* decode_eh_frame () in aot-runtime.c will decode this */
2150 type_info = LLVMAddGlobal (module, LLVMInt32Type (), ti_name);
2151 LLVMSetInitializer (type_info, LLVMConstInt (LLVMInt32Type (), clause_index, FALSE));
2153 LLVMSetLinkage (type_info, LLVMPrivateLinkage);
2154 LLVMSetVisibility (type_info, LLVMHiddenVisibility);
2157 * Enabling this causes llc to crash:
2158 * http://llvm.org/bugs/show_bug.cgi?id=6102
2160 //LLVM_FAILURE (ctx, "aot+clauses");
2163 * After the cfg mempool is freed, the type info will point to stale memory,
2164 * but this is not a problem, since we decode it once in exception_cb during
2167 ti = mono_mempool_alloc (cfg->mempool, sizeof (gint32));
2168 *(gint32*)ti = clause_index;
2170 type_info = LLVMAddGlobal (module, i8ptr, ti_name);
2172 LLVMAddGlobalMapping (ee, type_info, ti);
2176 LLVMTypeRef members [2], ret_type;
2177 LLVMValueRef landing_pad;
2179 members [0] = i8ptr;
2180 members [1] = LLVMInt32Type ();
2181 ret_type = LLVMStructType (members, 2, FALSE);
2183 landing_pad = LLVMBuildLandingPad (builder, ret_type, personality, 1, "");
2184 LLVMAddClause (landing_pad, type_info);
2186 /* Store the exception into the exvar */
2187 if (bb->in_scount == 1) {
2188 g_assert (bb->in_scount == 1);
2189 exvar = bb->in_stack [0];
2191 // FIXME: This is shared with filter clauses ?
2192 g_assert (!values [exvar->dreg]);
2194 values [exvar->dreg] = LLVMBuildExtractValue (builder, landing_pad, 0, "ex_obj");
2195 emit_volatile_store (ctx, exvar->dreg);
2199 /* Start a new bblock which CALL_HANDLER can branch to */
2200 target_bb = bblocks [bb->block_num].call_handler_target_bb;
2202 LLVMBuildBr (builder, target_bb);
2204 ctx->builder = builder = create_builder (ctx);
2205 LLVMPositionBuilderAtEnd (ctx->builder, target_bb);
2207 ctx->bblocks [bb->block_num].end_bblock = target_bb;
2211 has_terminator = FALSE;
2212 starting_builder = builder;
2213 for (ins = bb->code; ins; ins = ins->next) {
2214 const char *spec = LLVM_INS_INFO (ins->opcode);
2216 char dname_buf [128];
2219 if (nins > 5000 && builder == starting_builder) {
2220 /* some steps in llc are non-linear in the size of basic blocks, see #5714 */
2221 LLVM_FAILURE (ctx, "basic block too long");
2225 /* There could be instructions after a terminator, skip them */
2228 if (spec [MONO_INST_DEST] != ' ' && !MONO_IS_STORE_MEMBASE (ins)) {
2229 sprintf (dname_buf, "t%d", ins->dreg);
2233 if (spec [MONO_INST_SRC1] != ' ' && spec [MONO_INST_SRC1] != 'v') {
2234 MonoInst *var = get_vreg_to_inst (cfg, ins->sreg1);
2236 if (var && var->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT)) {
2237 lhs = emit_volatile_load (ctx, ins->sreg1);
2239 /* It is ok for SETRET to have an uninitialized argument */
2240 if (!values [ins->sreg1] && ins->opcode != OP_SETRET)
2241 LLVM_FAILURE (ctx, "sreg1");
2242 lhs = values [ins->sreg1];
2248 if (spec [MONO_INST_SRC2] != ' ' && spec [MONO_INST_SRC2] != ' ') {
2249 MonoInst *var = get_vreg_to_inst (cfg, ins->sreg2);
2250 if (var && var->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT)) {
2251 rhs = emit_volatile_load (ctx, ins->sreg2);
2253 if (!values [ins->sreg2])
2254 LLVM_FAILURE (ctx, "sreg2");
2255 rhs = values [ins->sreg2];
2261 //mono_print_ins (ins);
2262 switch (ins->opcode) {
2265 case OP_LIVERANGE_START:
2266 case OP_LIVERANGE_END:
2269 values [ins->dreg] = LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE);
2272 #if SIZEOF_VOID_P == 4
2273 values [ins->dreg] = LLVMConstInt (LLVMInt64Type (), GET_LONG_IMM (ins), FALSE);
2275 values [ins->dreg] = LLVMConstInt (LLVMInt64Type (), (gint64)ins->inst_c0, FALSE);
2279 values [ins->dreg] = LLVMConstReal (LLVMDoubleType (), *(double*)ins->inst_p0);
2282 values [ins->dreg] = LLVMConstFPExt (LLVMConstReal (LLVMFloatType (), *(float*)ins->inst_p0), LLVMDoubleType ());
2285 LLVMBuildBr (builder, get_bb (ctx, ins->inst_target_bb));
2286 has_terminator = TRUE;
2292 LLVMBasicBlockRef new_bb;
2293 LLVMBuilderRef new_builder;
2295 // The default branch is already handled
2296 // FIXME: Handle it here
2298 /* Start new bblock */
2299 sprintf (bb_name, "SWITCH_DEFAULT_BB%d", ctx->default_index ++);
2300 new_bb = LLVMAppendBasicBlock (ctx->lmethod, bb_name);
2302 lhs = convert (ctx, lhs, LLVMInt32Type ());
2303 v = LLVMBuildSwitch (builder, lhs, new_bb, GPOINTER_TO_UINT (ins->klass));
2304 for (i = 0; i < GPOINTER_TO_UINT (ins->klass); ++i) {
2305 MonoBasicBlock *target_bb = ins->inst_many_bb [i];
2307 LLVMAddCase (v, LLVMConstInt (LLVMInt32Type (), i, FALSE), get_bb (ctx, target_bb));
2310 new_builder = create_builder (ctx);
2311 LLVMPositionBuilderAtEnd (new_builder, new_bb);
2312 LLVMBuildUnreachable (new_builder);
2314 has_terminator = TRUE;
2315 g_assert (!ins->next);
2321 if (linfo->ret.storage == LLVMArgVtypeInReg) {
2322 LLVMTypeRef ret_type = LLVMGetReturnType (LLVMGetElementType (LLVMTypeOf (method)));
2323 LLVMValueRef part1, retval;
2326 size = get_vtype_size (sig->ret);
2328 g_assert (addresses [ins->sreg1]);
2330 g_assert (linfo->ret.pair_storage [0] == LLVMArgInIReg);
2331 g_assert (linfo->ret.pair_storage [1] == LLVMArgNone);
2333 part1 = convert (ctx, LLVMBuildLoad (builder, LLVMBuildBitCast (builder, addresses [ins->sreg1], LLVMPointerType (LLVMIntType (size * 8), 0), ""), ""), IntPtrType ());
2335 retval = LLVMBuildInsertValue (builder, LLVMGetUndef (ret_type), part1, 0, "");
2337 LLVMBuildRet (builder, retval);
2341 if (linfo->ret.storage == LLVMArgVtypeRetAddr) {
2342 LLVMBuildRetVoid (builder);
2346 if (!lhs || ctx->is_dead [ins->sreg1]) {
2348 * The method did not set its return value, probably because it
2349 * ends with a throw.
2352 LLVMBuildRetVoid (builder);
2354 LLVMBuildRet (builder, LLVMConstNull (type_to_llvm_type (ctx, sig->ret)));
2356 LLVMBuildRet (builder, convert (ctx, lhs, type_to_llvm_type (ctx, sig->ret)));
2358 has_terminator = TRUE;
2364 case OP_ICOMPARE_IMM:
2365 case OP_LCOMPARE_IMM:
2366 case OP_COMPARE_IMM: {
2370 if (ins->next->opcode == OP_NOP)
2373 if (ins->next->opcode == OP_BR)
2374 /* The comparison result is not needed */
2377 rel = mono_opcode_to_cond (ins->next->opcode);
2379 if (ins->opcode == OP_ICOMPARE_IMM) {
2380 lhs = convert (ctx, lhs, LLVMInt32Type ());
2381 rhs = LLVMConstInt (LLVMInt32Type (), ins->inst_imm, FALSE);
2383 if (ins->opcode == OP_LCOMPARE_IMM) {
2384 lhs = convert (ctx, lhs, LLVMInt64Type ());
2385 rhs = LLVMConstInt (LLVMInt64Type (), GET_LONG_IMM (ins), FALSE);
2387 if (ins->opcode == OP_LCOMPARE) {
2388 lhs = convert (ctx, lhs, LLVMInt64Type ());
2389 rhs = convert (ctx, rhs, LLVMInt64Type ());
2391 if (ins->opcode == OP_ICOMPARE) {
2392 lhs = convert (ctx, lhs, LLVMInt32Type ());
2393 rhs = convert (ctx, rhs, LLVMInt32Type ());
2397 if (LLVMGetTypeKind (LLVMTypeOf (lhs)) == LLVMPointerTypeKind)
2398 rhs = convert (ctx, rhs, LLVMTypeOf (lhs));
2399 else if (LLVMGetTypeKind (LLVMTypeOf (rhs)) == LLVMPointerTypeKind)
2400 lhs = convert (ctx, lhs, LLVMTypeOf (rhs));
2403 /* We use COMPARE+SETcc/Bcc, llvm uses SETcc+br cond */
2404 if (ins->opcode == OP_FCOMPARE)
2405 cmp = LLVMBuildFCmp (builder, fpcond_to_llvm_cond [rel], convert (ctx, lhs, LLVMDoubleType ()), convert (ctx, rhs, LLVMDoubleType ()), "");
2406 else if (ins->opcode == OP_COMPARE_IMM)
2407 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], convert (ctx, lhs, IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_imm, FALSE), "");
2408 else if (ins->opcode == OP_LCOMPARE_IMM) {
2409 if (SIZEOF_REGISTER == 4 && COMPILE_LLVM (cfg)) {
2410 /* The immediate is encoded in two fields */
2411 guint64 l = ((guint64)(guint32)ins->inst_offset << 32) | ((guint32)ins->inst_imm);
2412 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], convert (ctx, lhs, LLVMInt64Type ()), LLVMConstInt (LLVMInt64Type (), l, FALSE), "");
2414 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], convert (ctx, lhs, LLVMInt64Type ()), LLVMConstInt (LLVMInt64Type (), ins->inst_imm, FALSE), "");
2417 else if (ins->opcode == OP_COMPARE)
2418 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], convert (ctx, lhs, IntPtrType ()), convert (ctx, rhs, IntPtrType ()), "");
2420 cmp = LLVMBuildICmp (builder, cond_to_llvm_cond [rel], lhs, rhs, "");
2422 if (MONO_IS_COND_BRANCH_OP (ins->next)) {
2423 if (ins->next->inst_true_bb == ins->next->inst_false_bb) {
2425 * If the target bb contains PHI instructions, LLVM requires
2426 * two PHI entries for this bblock, while we only generate one.
2427 * So convert this to an unconditional bblock. (bxc #171).
2429 LLVMBuildBr (builder, get_bb (ctx, ins->next->inst_true_bb));
2431 LLVMBuildCondBr (builder, cmp, get_bb (ctx, ins->next->inst_true_bb), get_bb (ctx, ins->next->inst_false_bb));
2433 has_terminator = TRUE;
2434 } else if (MONO_IS_SETCC (ins->next)) {
2435 sprintf (dname_buf, "t%d", ins->next->dreg);
2437 values [ins->next->dreg] = LLVMBuildZExt (builder, cmp, LLVMInt32Type (), dname);
2439 /* Add stores for volatile variables */
2440 emit_volatile_store (ctx, ins->next->dreg);
2441 } else if (MONO_IS_COND_EXC (ins->next)) {
2442 emit_cond_system_exception (ctx, bb, ins->next->inst_p1, cmp);
2443 CHECK_FAILURE (ctx);
2444 builder = ctx->builder;
2446 LLVM_FAILURE (ctx, "next");
2460 rel = mono_opcode_to_cond (ins->opcode);
2462 cmp = LLVMBuildFCmp (builder, fpcond_to_llvm_cond [rel], convert (ctx, lhs, LLVMDoubleType ()), convert (ctx, rhs, LLVMDoubleType ()), "");
2463 values [ins->dreg] = LLVMBuildZExt (builder, cmp, LLVMInt32Type (), dname);
2471 gboolean empty = TRUE;
2473 /* Check that all input bblocks really branch to us */
2474 for (i = 0; i < bb->in_count; ++i) {
2475 if (bb->in_bb [i]->last_ins && bb->in_bb [i]->last_ins->opcode == OP_NOT_REACHED)
2476 ins->inst_phi_args [i + 1] = -1;
2482 /* LLVM doesn't like phi instructions with zero operands */
2483 ctx->is_dead [ins->dreg] = TRUE;
2487 /* Created earlier, insert it now */
2488 LLVMInsertIntoBuilder (builder, values [ins->dreg]);
2490 for (i = 0; i < ins->inst_phi_args [0]; i++) {
2491 int sreg1 = ins->inst_phi_args [i + 1];
2495 * Count the number of times the incoming bblock branches to us,
2496 * since llvm requires a separate entry for each.
2498 if (bb->in_bb [i]->last_ins && bb->in_bb [i]->last_ins->opcode == OP_SWITCH) {
2499 MonoInst *switch_ins = bb->in_bb [i]->last_ins;
2502 for (j = 0; j < GPOINTER_TO_UINT (switch_ins->klass); ++j) {
2503 if (switch_ins->inst_many_bb [j] == bb)
2510 /* Remember for later */
2511 for (j = 0; j < count; ++j) {
2512 PhiNode *node = mono_mempool_alloc0 (ctx->mempool, sizeof (PhiNode));
2515 node->in_bb = bb->in_bb [i];
2517 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);
2527 values [ins->dreg] = lhs;
2530 MonoInst *var = get_vreg_to_inst (cfg, ins->dreg);
2533 values [ins->dreg] = lhs;
2535 if (var && var->klass->byval_arg.type == MONO_TYPE_R4) {
2537 * This is added by the spilling pass in case of the JIT,
2538 * but we have to do it ourselves.
2540 values [ins->dreg] = convert (ctx, values [ins->dreg], LLVMFloatType ());
2574 lhs = convert (ctx, lhs, regtype_to_llvm_type (spec [MONO_INST_DEST]));
2575 rhs = convert (ctx, rhs, regtype_to_llvm_type (spec [MONO_INST_DEST]));
2577 switch (ins->opcode) {
2580 values [ins->dreg] = LLVMBuildAdd (builder, lhs, rhs, dname);
2584 values [ins->dreg] = LLVMBuildSub (builder, lhs, rhs, dname);
2588 values [ins->dreg] = LLVMBuildMul (builder, lhs, rhs, dname);
2592 values [ins->dreg] = LLVMBuildSRem (builder, lhs, rhs, dname);
2596 values [ins->dreg] = LLVMBuildURem (builder, lhs, rhs, dname);
2600 values [ins->dreg] = LLVMBuildSDiv (builder, lhs, rhs, dname);
2604 values [ins->dreg] = LLVMBuildUDiv (builder, lhs, rhs, dname);
2607 values [ins->dreg] = LLVMBuildFDiv (builder, lhs, rhs, dname);
2611 values [ins->dreg] = LLVMBuildAnd (builder, lhs, rhs, dname);
2615 values [ins->dreg] = LLVMBuildOr (builder, lhs, rhs, dname);
2619 values [ins->dreg] = LLVMBuildXor (builder, lhs, rhs, dname);
2623 values [ins->dreg] = LLVMBuildShl (builder, lhs, rhs, dname);
2627 values [ins->dreg] = LLVMBuildAShr (builder, lhs, rhs, dname);
2631 values [ins->dreg] = LLVMBuildLShr (builder, lhs, rhs, dname);
2635 values [ins->dreg] = LLVMBuildFAdd (builder, lhs, rhs, dname);
2638 values [ins->dreg] = LLVMBuildFSub (builder, lhs, rhs, dname);
2641 values [ins->dreg] = LLVMBuildFMul (builder, lhs, rhs, dname);
2645 g_assert_not_reached ();
2652 case OP_IREM_UN_IMM:
2654 case OP_IDIV_UN_IMM:
2660 case OP_ISHR_UN_IMM:
2669 case OP_LSHR_UN_IMM:
2677 if (spec [MONO_INST_SRC1] == 'l') {
2678 imm = LLVMConstInt (LLVMInt64Type (), GET_LONG_IMM (ins), FALSE);
2680 imm = LLVMConstInt (LLVMInt32Type (), ins->inst_imm, FALSE);
2683 #if SIZEOF_VOID_P == 4
2684 if (ins->opcode == OP_LSHL_IMM || ins->opcode == OP_LSHR_IMM || ins->opcode == OP_LSHR_UN_IMM)
2685 imm = LLVMConstInt (LLVMInt32Type (), ins->inst_imm, FALSE);
2688 if (LLVMGetTypeKind (LLVMTypeOf (lhs)) == LLVMPointerTypeKind)
2689 lhs = convert (ctx, lhs, IntPtrType ());
2690 imm = convert (ctx, imm, LLVMTypeOf (lhs));
2691 switch (ins->opcode) {
2695 values [ins->dreg] = LLVMBuildAdd (builder, lhs, imm, dname);
2699 values [ins->dreg] = LLVMBuildSub (builder, lhs, imm, dname);
2703 values [ins->dreg] = LLVMBuildMul (builder, lhs, imm, dname);
2707 values [ins->dreg] = LLVMBuildSDiv (builder, lhs, imm, dname);
2709 case OP_IDIV_UN_IMM:
2710 case OP_LDIV_UN_IMM:
2711 values [ins->dreg] = LLVMBuildUDiv (builder, lhs, imm, dname);
2715 values [ins->dreg] = LLVMBuildSRem (builder, lhs, imm, dname);
2717 case OP_IREM_UN_IMM:
2718 values [ins->dreg] = LLVMBuildURem (builder, lhs, imm, dname);
2723 values [ins->dreg] = LLVMBuildAnd (builder, lhs, imm, dname);
2727 values [ins->dreg] = LLVMBuildOr (builder, lhs, imm, dname);
2731 values [ins->dreg] = LLVMBuildXor (builder, lhs, imm, dname);
2736 values [ins->dreg] = LLVMBuildShl (builder, lhs, imm, dname);
2741 values [ins->dreg] = LLVMBuildAShr (builder, lhs, imm, dname);
2743 case OP_ISHR_UN_IMM:
2744 /* This is used to implement conv.u4, so the lhs could be an i8 */
2745 lhs = convert (ctx, lhs, LLVMInt32Type ());
2746 imm = convert (ctx, imm, LLVMInt32Type ());
2747 values [ins->dreg] = LLVMBuildLShr (builder, lhs, imm, dname);
2749 case OP_LSHR_UN_IMM:
2750 values [ins->dreg] = LLVMBuildLShr (builder, lhs, imm, dname);
2753 g_assert_not_reached ();
2758 values [ins->dreg] = LLVMBuildSub (builder, LLVMConstInt (LLVMInt32Type (), 0, FALSE), convert (ctx, lhs, LLVMInt32Type ()), dname);
2761 values [ins->dreg] = LLVMBuildSub (builder, LLVMConstInt (LLVMInt64Type (), 0, FALSE), lhs, dname);
2764 lhs = convert (ctx, lhs, LLVMDoubleType ());
2765 values [ins->dreg] = LLVMBuildFSub (builder, LLVMConstReal (LLVMDoubleType (), 0.0), lhs, dname);
2768 guint32 v = 0xffffffff;
2769 values [ins->dreg] = LLVMBuildXor (builder, LLVMConstInt (LLVMInt32Type (), v, FALSE), convert (ctx, lhs, LLVMInt32Type ()), dname);
2773 guint64 v = 0xffffffffffffffffLL;
2774 values [ins->dreg] = LLVMBuildXor (builder, LLVMConstInt (LLVMInt64Type (), v, FALSE), lhs, dname);
2777 #if defined(TARGET_X86) || defined(TARGET_AMD64)
2779 LLVMValueRef v1, v2;
2781 v1 = LLVMBuildMul (builder, convert (ctx, rhs, IntPtrType ()), LLVMConstInt (IntPtrType (), (1 << ins->backend.shift_amount), FALSE), "");
2782 v2 = LLVMBuildAdd (builder, convert (ctx, lhs, IntPtrType ()), v1, "");
2783 values [ins->dreg] = LLVMBuildAdd (builder, v2, LLVMConstInt (IntPtrType (), ins->inst_imm, FALSE), dname);
2788 case OP_ICONV_TO_I1:
2789 case OP_ICONV_TO_I2:
2790 case OP_ICONV_TO_I4:
2791 case OP_ICONV_TO_U1:
2792 case OP_ICONV_TO_U2:
2793 case OP_ICONV_TO_U4:
2794 case OP_LCONV_TO_I1:
2795 case OP_LCONV_TO_I2:
2796 case OP_LCONV_TO_U1:
2797 case OP_LCONV_TO_U2:
2798 case OP_LCONV_TO_U4: {
2801 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);
2803 /* Have to do two casts since our vregs have type int */
2804 v = LLVMBuildTrunc (builder, lhs, op_to_llvm_type (ins->opcode), "");
2806 values [ins->dreg] = LLVMBuildSExt (builder, v, LLVMInt32Type (), dname);
2808 values [ins->dreg] = LLVMBuildZExt (builder, v, LLVMInt32Type (), dname);
2811 case OP_ICONV_TO_I8:
2812 values [ins->dreg] = LLVMBuildSExt (builder, lhs, LLVMInt64Type (), dname);
2814 case OP_ICONV_TO_U8:
2815 values [ins->dreg] = LLVMBuildZExt (builder, lhs, LLVMInt64Type (), dname);
2817 case OP_FCONV_TO_I4:
2818 values [ins->dreg] = LLVMBuildFPToSI (builder, lhs, LLVMInt32Type (), dname);
2820 case OP_FCONV_TO_I1:
2821 values [ins->dreg] = LLVMBuildSExt (builder, LLVMBuildFPToSI (builder, lhs, LLVMInt8Type (), dname), LLVMInt32Type (), "");
2823 case OP_FCONV_TO_U1:
2824 values [ins->dreg] = LLVMBuildZExt (builder, LLVMBuildFPToUI (builder, lhs, LLVMInt8Type (), dname), LLVMInt32Type (), "");
2826 case OP_FCONV_TO_I2:
2827 values [ins->dreg] = LLVMBuildSExt (builder, LLVMBuildFPToSI (builder, lhs, LLVMInt16Type (), dname), LLVMInt32Type (), "");
2829 case OP_FCONV_TO_U2:
2830 values [ins->dreg] = LLVMBuildZExt (builder, LLVMBuildFPToUI (builder, lhs, LLVMInt16Type (), dname), LLVMInt32Type (), "");
2832 case OP_FCONV_TO_I8:
2833 values [ins->dreg] = LLVMBuildFPToSI (builder, lhs, LLVMInt64Type (), dname);
2836 values [ins->dreg] = LLVMBuildFPToSI (builder, lhs, IntPtrType (), dname);
2838 case OP_ICONV_TO_R8:
2839 case OP_LCONV_TO_R8:
2840 values [ins->dreg] = LLVMBuildSIToFP (builder, lhs, LLVMDoubleType (), dname);
2842 case OP_LCONV_TO_R_UN:
2843 values [ins->dreg] = LLVMBuildUIToFP (builder, lhs, LLVMDoubleType (), dname);
2845 #if SIZEOF_VOID_P == 4
2848 case OP_LCONV_TO_I4:
2849 values [ins->dreg] = LLVMBuildTrunc (builder, lhs, LLVMInt32Type (), dname);
2851 case OP_ICONV_TO_R4:
2852 case OP_LCONV_TO_R4:
2853 v = LLVMBuildSIToFP (builder, lhs, LLVMFloatType (), "");
2854 values [ins->dreg] = LLVMBuildFPExt (builder, v, LLVMDoubleType (), dname);
2856 case OP_FCONV_TO_R4:
2857 v = LLVMBuildFPTrunc (builder, lhs, LLVMFloatType (), "");
2858 values [ins->dreg] = LLVMBuildFPExt (builder, v, LLVMDoubleType (), dname);
2861 values [ins->dreg] = LLVMBuildSExt (builder, lhs, LLVMInt64Type (), dname);
2864 values [ins->dreg] = LLVMBuildZExt (builder, lhs, LLVMInt64Type (), dname);
2867 values [ins->dreg] = LLVMBuildTrunc (builder, lhs, LLVMInt32Type (), dname);
2869 case OP_LOCALLOC_IMM: {
2872 guint32 size = ins->inst_imm;
2873 size = (size + (MONO_ARCH_FRAME_ALIGNMENT - 1)) & ~ (MONO_ARCH_FRAME_ALIGNMENT - 1);
2875 v = mono_llvm_build_alloca (builder, LLVMInt8Type (), LLVMConstInt (LLVMInt32Type (), size, FALSE), MONO_ARCH_FRAME_ALIGNMENT, "");
2877 if (ins->flags & MONO_INST_INIT) {
2878 LLVMValueRef args [5];
2881 args [1] = LLVMConstInt (LLVMInt8Type (), 0, FALSE);
2882 args [2] = LLVMConstInt (LLVMInt32Type (), size, FALSE);
2883 args [3] = LLVMConstInt (LLVMInt32Type (), MONO_ARCH_FRAME_ALIGNMENT, FALSE);
2884 args [4] = LLVMConstInt (LLVMInt1Type (), 0, FALSE);
2885 LLVMBuildCall (builder, LLVMGetNamedFunction (module, memset_func_name), args, memset_param_count, "");
2888 values [ins->dreg] = v;
2892 LLVMValueRef v, size;
2894 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), "");
2896 v = mono_llvm_build_alloca (builder, LLVMInt8Type (), size, MONO_ARCH_FRAME_ALIGNMENT, "");
2898 if (ins->flags & MONO_INST_INIT) {
2899 LLVMValueRef args [5];
2902 args [1] = LLVMConstInt (LLVMInt8Type (), 0, FALSE);
2904 args [3] = LLVMConstInt (LLVMInt32Type (), MONO_ARCH_FRAME_ALIGNMENT, FALSE);
2905 args [4] = LLVMConstInt (LLVMInt1Type (), 0, FALSE);
2906 LLVMBuildCall (builder, LLVMGetNamedFunction (module, memset_func_name), args, memset_param_count, "");
2908 values [ins->dreg] = v;
2912 case OP_LOADI1_MEMBASE:
2913 case OP_LOADU1_MEMBASE:
2914 case OP_LOADI2_MEMBASE:
2915 case OP_LOADU2_MEMBASE:
2916 case OP_LOADI4_MEMBASE:
2917 case OP_LOADU4_MEMBASE:
2918 case OP_LOADI8_MEMBASE:
2919 case OP_LOADR4_MEMBASE:
2920 case OP_LOADR8_MEMBASE:
2921 case OP_LOAD_MEMBASE:
2929 LLVMValueRef base, index, addr;
2931 gboolean sext = FALSE, zext = FALSE;
2932 gboolean is_volatile = (ins->flags & MONO_INST_FAULT);
2934 t = load_store_to_llvm_type (ins->opcode, &size, &sext, &zext);
2939 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)) {
2940 addr = LLVMConstInt (IntPtrType (), ins->inst_imm, FALSE);
2945 if (ins->inst_offset == 0) {
2947 } else if (ins->inst_offset % size != 0) {
2948 /* Unaligned load */
2949 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset, FALSE);
2950 addr = LLVMBuildGEP (builder, convert (ctx, base, LLVMPointerType (LLVMInt8Type (), 0)), &index, 1, "");
2952 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset / size, FALSE);
2953 addr = LLVMBuildGEP (builder, convert (ctx, base, LLVMPointerType (t, 0)), &index, 1, "");
2957 addr = convert (ctx, addr, LLVMPointerType (t, 0));
2959 values [ins->dreg] = emit_load (ctx, bb, &builder, size, addr, dname, is_volatile);
2961 if (!is_volatile && (ins->flags & MONO_INST_CONSTANT_LOAD)) {
2963 * These will signal LLVM that these loads do not alias any stores, and
2964 * they can't fail, allowing them to be hoisted out of loops.
2966 set_metadata_flag (values [ins->dreg], "mono.noalias");
2967 set_metadata_flag (values [ins->dreg], "mono.nofail.load");
2971 values [ins->dreg] = LLVMBuildSExt (builder, values [ins->dreg], LLVMInt32Type (), dname);
2973 values [ins->dreg] = LLVMBuildZExt (builder, values [ins->dreg], LLVMInt32Type (), dname);
2974 else if (ins->opcode == OP_LOADR4_MEMBASE)
2975 values [ins->dreg] = LLVMBuildFPExt (builder, values [ins->dreg], LLVMDoubleType (), dname);
2979 case OP_STOREI1_MEMBASE_REG:
2980 case OP_STOREI2_MEMBASE_REG:
2981 case OP_STOREI4_MEMBASE_REG:
2982 case OP_STOREI8_MEMBASE_REG:
2983 case OP_STORER4_MEMBASE_REG:
2984 case OP_STORER8_MEMBASE_REG:
2985 case OP_STORE_MEMBASE_REG: {
2987 LLVMValueRef index, addr;
2989 gboolean sext = FALSE, zext = FALSE;
2990 gboolean is_volatile = (ins->flags & MONO_INST_FAULT);
2992 if (!values [ins->inst_destbasereg])
2993 LLVM_FAILURE (ctx, "inst_destbasereg");
2995 t = load_store_to_llvm_type (ins->opcode, &size, &sext, &zext);
2997 if (ins->inst_offset % size != 0) {
2998 /* Unaligned store */
2999 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset, FALSE);
3000 addr = LLVMBuildGEP (builder, convert (ctx, values [ins->inst_destbasereg], LLVMPointerType (LLVMInt8Type (), 0)), &index, 1, "");
3002 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset / size, FALSE);
3003 addr = LLVMBuildGEP (builder, convert (ctx, values [ins->inst_destbasereg], LLVMPointerType (t, 0)), &index, 1, "");
3005 emit_store (ctx, bb, &builder, size, convert (ctx, values [ins->sreg1], t), convert (ctx, addr, LLVMPointerType (t, 0)), is_volatile);
3009 case OP_STOREI1_MEMBASE_IMM:
3010 case OP_STOREI2_MEMBASE_IMM:
3011 case OP_STOREI4_MEMBASE_IMM:
3012 case OP_STOREI8_MEMBASE_IMM:
3013 case OP_STORE_MEMBASE_IMM: {
3015 LLVMValueRef index, addr;
3017 gboolean sext = FALSE, zext = FALSE;
3018 gboolean is_volatile = (ins->flags & MONO_INST_FAULT);
3020 t = load_store_to_llvm_type (ins->opcode, &size, &sext, &zext);
3022 if (ins->inst_offset % size != 0) {
3023 /* Unaligned store */
3024 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset, FALSE);
3025 addr = LLVMBuildGEP (builder, convert (ctx, values [ins->inst_destbasereg], LLVMPointerType (LLVMInt8Type (), 0)), &index, 1, "");
3027 index = LLVMConstInt (LLVMInt32Type (), ins->inst_offset / size, FALSE);
3028 addr = LLVMBuildGEP (builder, convert (ctx, values [ins->inst_destbasereg], LLVMPointerType (t, 0)), &index, 1, "");
3030 emit_store (ctx, bb, &builder, size, convert (ctx, LLVMConstInt (IntPtrType (), ins->inst_imm, FALSE), t), addr, is_volatile);
3035 emit_load (ctx, bb, &builder, sizeof (gpointer), convert (ctx, lhs, LLVMPointerType (IntPtrType (), 0)), "", TRUE);
3037 case OP_OUTARG_VTRETADDR:
3044 case OP_VOIDCALL_MEMBASE:
3045 case OP_CALL_MEMBASE:
3046 case OP_LCALL_MEMBASE:
3047 case OP_FCALL_MEMBASE:
3048 case OP_VCALL_MEMBASE:
3049 case OP_VOIDCALL_REG:
3053 case OP_VCALL_REG: {
3054 process_call (ctx, bb, &builder, ins);
3055 CHECK_FAILURE (ctx);
3060 LLVMValueRef indexes [2];
3062 LLVMValueRef got_entry_addr;
3065 * FIXME: Can't allocate from the cfg mempool since that is freed if
3066 * the LLVM compile fails.
3068 ji = g_new0 (MonoJumpInfo, 1);
3069 ji->type = (MonoJumpInfoType)ins->inst_i1;
3070 ji->data.target = ins->inst_p0;
3072 ji = mono_aot_patch_info_dup (ji);
3074 ji->next = cfg->patch_info;
3075 cfg->patch_info = ji;
3077 //mono_add_patch_info (cfg, 0, (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3078 got_offset = mono_aot_get_got_offset (cfg->patch_info);
3080 indexes [0] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3081 indexes [1] = LLVMConstInt (LLVMInt32Type (), (gssize)got_offset, FALSE);
3082 got_entry_addr = LLVMBuildGEP (builder, ctx->lmodule->got_var, indexes, 2, "");
3084 // FIXME: This doesn't work right now, because it must be
3085 // paired with an invariant.end, and even then, its only in effect
3086 // inside its basic block
3089 LLVMValueRef args [3];
3090 LLVMValueRef ptr, val;
3092 ptr = LLVMBuildBitCast (builder, got_entry_addr, LLVMPointerType (LLVMInt8Type (), 0), "ptr");
3094 args [0] = LLVMConstInt (LLVMInt64Type (), sizeof (gpointer), FALSE);
3096 val = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "llvm.invariant.start"), args, 2, "");
3100 values [ins->dreg] = LLVMBuildLoad (builder, got_entry_addr, dname);
3103 case OP_NOT_REACHED:
3104 LLVMBuildUnreachable (builder);
3105 has_terminator = TRUE;
3106 g_assert (bb->block_num < cfg->max_block_num);
3107 ctx->unreachable [bb->block_num] = TRUE;
3108 /* Might have instructions after this */
3110 MonoInst *next = ins->next;
3112 * FIXME: If later code uses the regs defined by these instructions,
3113 * compilation will fail.
3115 MONO_DELETE_INS (bb, next);
3119 MonoInst *var = ins->inst_p0;
3121 values [ins->dreg] = addresses [var->dreg];
3125 LLVMValueRef args [1];
3127 args [0] = convert (ctx, lhs, LLVMDoubleType ());
3128 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "llvm.sin.f64"), args, 1, dname);
3132 LLVMValueRef args [1];
3134 args [0] = convert (ctx, lhs, LLVMDoubleType ());
3135 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "llvm.cos.f64"), args, 1, dname);
3139 LLVMValueRef args [1];
3142 /* This no longer seems to happen */
3144 * LLVM optimizes sqrt(nan) into undefined in
3145 * lib/Analysis/ConstantFolding.cpp
3146 * Also, sqrt(NegativeInfinity) is optimized into 0.
3148 LLVM_FAILURE (ctx, "sqrt");
3150 args [0] = convert (ctx, lhs, LLVMDoubleType ());
3151 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "llvm.sqrt.f64"), args, 1, dname);
3155 LLVMValueRef args [1];
3157 args [0] = convert (ctx, lhs, LLVMDoubleType ());
3158 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, "fabs"), args, 1, dname);
3172 lhs = convert (ctx, lhs, regtype_to_llvm_type (spec [MONO_INST_DEST]));
3173 rhs = convert (ctx, rhs, regtype_to_llvm_type (spec [MONO_INST_DEST]));
3175 switch (ins->opcode) {
3178 v = LLVMBuildICmp (builder, LLVMIntSLE, lhs, rhs, "");
3182 v = LLVMBuildICmp (builder, LLVMIntSGE, lhs, rhs, "");
3186 v = LLVMBuildICmp (builder, LLVMIntULE, lhs, rhs, "");
3190 v = LLVMBuildICmp (builder, LLVMIntUGE, lhs, rhs, "");
3193 g_assert_not_reached ();
3196 values [ins->dreg] = LLVMBuildSelect (builder, v, lhs, rhs, dname);
3199 case OP_ATOMIC_EXCHANGE_I4: {
3200 LLVMValueRef args [2];
3202 g_assert (ins->inst_offset == 0);
3204 args [0] = convert (ctx, lhs, LLVMPointerType (LLVMInt32Type (), 0));
3207 values [ins->dreg] = mono_llvm_build_atomic_rmw (builder, LLVM_ATOMICRMW_OP_XCHG, args [0], args [1]);
3210 case OP_ATOMIC_EXCHANGE_I8: {
3211 LLVMValueRef args [2];
3213 g_assert (ins->inst_offset == 0);
3215 args [0] = convert (ctx, lhs, LLVMPointerType (LLVMInt64Type (), 0));
3216 args [1] = convert (ctx, rhs, LLVMInt64Type ());
3217 values [ins->dreg] = mono_llvm_build_atomic_rmw (builder, LLVM_ATOMICRMW_OP_XCHG, args [0], args [1]);
3220 case OP_ATOMIC_ADD_NEW_I4: {
3221 LLVMValueRef args [2];
3223 g_assert (ins->inst_offset == 0);
3225 args [0] = convert (ctx, lhs, LLVMPointerType (LLVMInt32Type (), 0));
3227 values [ins->dreg] = LLVMBuildAdd (builder, mono_llvm_build_atomic_rmw (builder, LLVM_ATOMICRMW_OP_ADD, args [0], args [1]), args [1], dname);
3230 case OP_ATOMIC_ADD_NEW_I8: {
3231 LLVMValueRef args [2];
3233 g_assert (ins->inst_offset == 0);
3235 args [0] = convert (ctx, lhs, LLVMPointerType (LLVMInt64Type (), 0));
3236 args [1] = convert (ctx, rhs, LLVMInt64Type ());
3237 values [ins->dreg] = LLVMBuildAdd (builder, mono_llvm_build_atomic_rmw (builder, LLVM_ATOMICRMW_OP_ADD, args [0], args [1]), args [1], dname);
3240 case OP_ATOMIC_CAS_I4:
3241 case OP_ATOMIC_CAS_I8: {
3242 LLVMValueRef args [3];
3245 if (ins->opcode == OP_ATOMIC_CAS_I4) {
3246 t = LLVMInt32Type ();
3248 t = LLVMInt64Type ();
3251 args [0] = convert (ctx, lhs, LLVMPointerType (t, 0));
3253 args [1] = convert (ctx, values [ins->sreg3], t);
3255 args [2] = convert (ctx, values [ins->sreg2], t);
3256 values [ins->dreg] = mono_llvm_build_cmpxchg (builder, args [0], args [1], args [2]);
3259 case OP_MEMORY_BARRIER: {
3260 mono_llvm_build_fence (builder);
3263 case OP_RELAXED_NOP: {
3264 #if defined(TARGET_AMD64) || defined(TARGET_X86)
3265 emit_call (ctx, bb, &builder, LLVMGetNamedFunction (ctx->module, "llvm.x86.sse2.pause"), NULL, 0);
3272 #if (defined(TARGET_AMD64) || defined(TARGET_X86)) && defined(__linux__)
3274 // 257 == FS segment register
3275 LLVMTypeRef ptrtype = LLVMPointerType (IntPtrType (), 257);
3277 // 256 == GS segment register
3278 LLVMTypeRef ptrtype = LLVMPointerType (IntPtrType (), 256);
3282 values [ins->dreg] = LLVMBuildLoad (builder, LLVMBuildIntToPtr (builder, LLVMConstInt (IntPtrType (), ins->inst_offset, TRUE), ptrtype, ""), "");
3284 LLVM_FAILURE (ctx, "opcode tls-get");
3294 case OP_IADD_OVF_UN:
3296 case OP_ISUB_OVF_UN:
3298 case OP_IMUL_OVF_UN:
3299 #if SIZEOF_VOID_P == 8
3301 case OP_LADD_OVF_UN:
3303 case OP_LSUB_OVF_UN:
3305 case OP_LMUL_OVF_UN:
3308 LLVMValueRef args [2], val, ovf, func;
3310 args [0] = convert (ctx, lhs, op_to_llvm_type (ins->opcode));
3311 args [1] = convert (ctx, rhs, op_to_llvm_type (ins->opcode));
3312 func = LLVMGetNamedFunction (module, ovf_op_to_intrins (ins->opcode));
3314 val = LLVMBuildCall (builder, func, args, 2, "");
3315 values [ins->dreg] = LLVMBuildExtractValue (builder, val, 0, dname);
3316 ovf = LLVMBuildExtractValue (builder, val, 1, "");
3317 emit_cond_system_exception (ctx, bb, "OverflowException", ovf);
3318 CHECK_FAILURE (ctx);
3319 builder = ctx->builder;
3325 * We currently model them using arrays. Promotion to local vregs is
3326 * disabled for them in mono_handle_global_vregs () in the LLVM case,
3327 * so we always have an entry in cfg->varinfo for them.
3328 * FIXME: Is this needed ?
3331 MonoClass *klass = ins->klass;
3332 LLVMValueRef args [5];
3336 LLVM_FAILURE (ctx, "!klass");
3340 if (!addresses [ins->dreg])
3341 addresses [ins->dreg] = build_alloca (ctx, &klass->byval_arg);
3342 args [0] = LLVMBuildBitCast (builder, addresses [ins->dreg], LLVMPointerType (LLVMInt8Type (), 0), "");
3343 args [1] = LLVMConstInt (LLVMInt8Type (), 0, FALSE);
3344 args [2] = LLVMConstInt (LLVMInt32Type (), mono_class_value_size (klass, NULL), FALSE);
3346 args [3] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3347 args [4] = LLVMConstInt (LLVMInt1Type (), 0, FALSE);
3348 LLVMBuildCall (builder, LLVMGetNamedFunction (module, memset_func_name), args, memset_param_count, "");
3352 case OP_STOREV_MEMBASE:
3353 case OP_LOADV_MEMBASE:
3355 MonoClass *klass = ins->klass;
3356 LLVMValueRef src = NULL, dst, args [5];
3357 gboolean done = FALSE;
3361 LLVM_FAILURE (ctx, "!klass");
3365 switch (ins->opcode) {
3366 case OP_STOREV_MEMBASE:
3367 if (cfg->gen_write_barriers && klass->has_references && ins->inst_destbasereg != cfg->frame_reg) {
3368 /* FIXME: Emit write barriers like in mini_emit_stobj () */
3369 LLVM_FAILURE (ctx, "storev_membase + write barriers");
3372 if (!addresses [ins->sreg1]) {
3374 g_assert (values [ins->sreg1]);
3375 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));
3376 LLVMBuildStore (builder, values [ins->sreg1], dst);
3379 src = LLVMBuildBitCast (builder, addresses [ins->sreg1], LLVMPointerType (LLVMInt8Type (), 0), "");
3380 dst = convert (ctx, LLVMBuildAdd (builder, convert (ctx, values [ins->inst_destbasereg], IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_offset, FALSE), ""), LLVMPointerType (LLVMInt8Type (), 0));
3383 case OP_LOADV_MEMBASE:
3384 if (!addresses [ins->dreg])
3385 addresses [ins->dreg] = build_alloca (ctx, &klass->byval_arg);
3386 src = convert (ctx, LLVMBuildAdd (builder, convert (ctx, values [ins->inst_basereg], IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_offset, FALSE), ""), LLVMPointerType (LLVMInt8Type (), 0));
3387 dst = LLVMBuildBitCast (builder, addresses [ins->dreg], LLVMPointerType (LLVMInt8Type (), 0), "");
3390 if (!addresses [ins->sreg1])
3391 addresses [ins->sreg1] = build_alloca (ctx, &klass->byval_arg);
3392 if (!addresses [ins->dreg])
3393 addresses [ins->dreg] = build_alloca (ctx, &klass->byval_arg);
3394 src = LLVMBuildBitCast (builder, addresses [ins->sreg1], LLVMPointerType (LLVMInt8Type (), 0), "");
3395 dst = LLVMBuildBitCast (builder, addresses [ins->dreg], LLVMPointerType (LLVMInt8Type (), 0), "");
3398 g_assert_not_reached ();
3400 CHECK_FAILURE (ctx);
3407 args [2] = LLVMConstInt (LLVMInt32Type (), mono_class_value_size (klass, NULL), FALSE);
3408 args [3] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3410 args [3] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3411 args [4] = LLVMConstInt (LLVMInt1Type (), 0, FALSE);
3412 LLVMBuildCall (builder, LLVMGetNamedFunction (module, memcpy_func_name), args, memcpy_param_count, "");
3415 case OP_LLVM_OUTARG_VT:
3416 if (!addresses [ins->sreg1]) {
3417 addresses [ins->sreg1] = build_alloca (ctx, &ins->klass->byval_arg);
3418 g_assert (values [ins->sreg1]);
3419 LLVMBuildStore (builder, values [ins->sreg1], addresses [ins->sreg1]);
3421 addresses [ins->dreg] = addresses [ins->sreg1];
3427 #ifdef MONO_ARCH_SIMD_INTRINSICS
3429 values [ins->dreg] = LLVMConstNull (type_to_llvm_type (ctx, &ins->klass->byval_arg));
3432 case OP_LOADX_MEMBASE: {
3433 LLVMTypeRef t = type_to_llvm_type (ctx, &ins->klass->byval_arg);
3436 src = convert (ctx, LLVMBuildAdd (builder, convert (ctx, values [ins->inst_basereg], IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_offset, FALSE), ""), LLVMPointerType (t, 0));
3437 values [ins->dreg] = mono_llvm_build_aligned_load (builder, src, "", FALSE, 1);
3440 case OP_STOREX_MEMBASE: {
3441 LLVMTypeRef t = LLVMTypeOf (values [ins->sreg1]);
3444 dest = convert (ctx, LLVMBuildAdd (builder, convert (ctx, values [ins->inst_destbasereg], IntPtrType ()), LLVMConstInt (IntPtrType (), ins->inst_offset, FALSE), ""), LLVMPointerType (t, 0));
3445 mono_llvm_build_aligned_store (builder, values [ins->sreg1], dest, FALSE, 1);
3452 values [ins->dreg] = LLVMBuildAdd (builder, lhs, rhs, "");
3456 values [ins->dreg] = LLVMBuildFAdd (builder, lhs, rhs, "");
3462 values [ins->dreg] = LLVMBuildSub (builder, lhs, rhs, "");
3466 values [ins->dreg] = LLVMBuildFSub (builder, lhs, rhs, "");
3470 values [ins->dreg] = LLVMBuildFMul (builder, lhs, rhs, "");
3474 values [ins->dreg] = LLVMBuildFDiv (builder, lhs, rhs, "");
3477 values [ins->dreg] = LLVMBuildAnd (builder, lhs, rhs, "");
3480 values [ins->dreg] = LLVMBuildOr (builder, lhs, rhs, "");
3483 values [ins->dreg] = LLVMBuildXor (builder, lhs, rhs, "");
3487 values [ins->dreg] = LLVMBuildMul (builder, lhs, rhs, "");
3498 LLVMValueRef v = NULL;
3500 switch (ins->opcode) {
3505 t = LLVMVectorType (LLVMInt32Type (), 4);
3506 rt = LLVMVectorType (LLVMFloatType (), 4);
3512 t = LLVMVectorType (LLVMInt64Type (), 2);
3513 rt = LLVMVectorType (LLVMDoubleType (), 2);
3516 t = LLVMInt32Type ();
3517 rt = LLVMInt32Type ();
3518 g_assert_not_reached ();
3521 lhs = LLVMBuildBitCast (builder, lhs, t, "");
3522 rhs = LLVMBuildBitCast (builder, rhs, t, "");
3523 switch (ins->opcode) {
3526 v = LLVMBuildAnd (builder, lhs, rhs, "");
3530 v = LLVMBuildOr (builder, lhs, rhs, "");
3534 v = LLVMBuildXor (builder, lhs, rhs, "");
3538 v = LLVMBuildAnd (builder, rhs, LLVMBuildNot (builder, lhs, ""), "");
3541 values [ins->dreg] = LLVMBuildBitCast (builder, v, rt, "");
3565 case OP_PADDB_SAT_UN:
3566 case OP_PADDW_SAT_UN:
3567 case OP_PSUBB_SAT_UN:
3568 case OP_PSUBW_SAT_UN:
3576 case OP_PMULW_HIGH_UN: {
3577 LLVMValueRef args [2];
3582 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), args, 2, dname);
3589 values [ins->dreg] = LLVMBuildSExt (builder, LLVMBuildICmp (builder, LLVMIntEQ, lhs, rhs, ""), LLVMTypeOf (lhs), "");
3593 values [ins->dreg] = LLVMBuildSExt (builder, LLVMBuildICmp (builder, LLVMIntSGT, lhs, rhs, ""), LLVMTypeOf (lhs), "");
3601 case OP_EXTRACTX_U2:
3603 case OP_EXTRACT_U1: {
3605 gboolean zext = FALSE;
3607 t = simd_op_to_llvm_type (ins->opcode);
3609 switch (ins->opcode) {
3617 case OP_EXTRACTX_U2:
3622 t = LLVMInt32Type ();
3623 g_assert_not_reached ();
3626 lhs = LLVMBuildBitCast (builder, lhs, t, "");
3627 values [ins->dreg] = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), "");
3629 values [ins->dreg] = LLVMBuildZExt (builder, values [ins->dreg], LLVMInt32Type (), "");
3638 case OP_EXPAND_R8: {
3639 LLVMTypeRef t = simd_op_to_llvm_type (ins->opcode);
3640 LLVMValueRef mask [16], v;
3642 for (i = 0; i < 16; ++i)
3643 mask [i] = LLVMConstInt (LLVMInt32Type (), 0, FALSE);
3645 v = convert (ctx, values [ins->sreg1], LLVMGetElementType (t));
3647 values [ins->dreg] = LLVMBuildInsertElement (builder, LLVMConstNull (t), v, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3648 values [ins->dreg] = LLVMBuildShuffleVector (builder, values [ins->dreg], LLVMGetUndef (t), LLVMConstVector (mask, LLVMGetVectorSize (t)), "");
3653 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMInt8Type ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3656 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMInt16Type ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3659 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMInt32Type ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3662 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMInt64Type ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3665 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMFloatType ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3668 values [ins->dreg] = LLVMBuildInsertElement (builder, values [ins->sreg1], convert (ctx, values [ins->sreg2], LLVMDoubleType ()), LLVMConstInt (LLVMInt32Type (), ins->inst_c0, FALSE), dname);
3679 case OP_EXTRACT_MASK:
3686 v = convert (ctx, values [ins->sreg1], simd_op_to_llvm_type (ins->opcode));
3688 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), &v, 1, dname);
3692 case OP_ICONV_TO_R8_RAW:
3693 /* Same as OP_ICONV_TO_R8 */
3694 values [ins->dreg] = convert (ctx, LLVMBuildBitCast (builder, lhs, LLVMFloatType (), ""), LLVMDoubleType ());
3699 LLVMValueRef args [3];
3703 args [2] = LLVMConstInt (LLVMInt8Type (), ins->inst_c0, FALSE);
3705 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), args, 3, dname);
3710 /* This is only used for implementing shifts by non-immediate */
3711 values [ins->dreg] = lhs;
3722 LLVMValueRef args [3];
3725 args [1] = LLVMConstInt (LLVMInt32Type (), ins->inst_imm, FALSE);
3727 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), args, 2, dname);
3738 case OP_PSHLQ_REG: {
3739 LLVMValueRef args [3];
3742 args [1] = values [ins->sreg2];
3744 values [ins->dreg] = LLVMBuildCall (builder, LLVMGetNamedFunction (module, simd_op_to_intrins (ins->opcode)), args, 2, dname);
3751 case OP_PSHUFLEW_LOW:
3752 case OP_PSHUFLEW_HIGH: {
3754 LLVMValueRef v1 = NULL, v2 = NULL, mask_values [16];
3755 int i, mask_size = 0;
3756 int imask = ins->inst_c0;
3758 /* Convert the x86 shuffle mask to LLVM's */
3759 switch (ins->opcode) {
3762 mask [0] = ((imask >> 0) & 3);
3763 mask [1] = ((imask >> 2) & 3);
3764 mask [2] = ((imask >> 4) & 3) + 4;
3765 mask [3] = ((imask >> 6) & 3) + 4;
3766 v1 = values [ins->sreg1];
3767 v2 = values [ins->sreg2];
3771 mask [0] = ((imask >> 0) & 1);
3772 mask [1] = ((imask >> 1) & 1) + 2;
3773 v1 = values [ins->sreg1];
3774 v2 = values [ins->sreg2];
3776 case OP_PSHUFLEW_LOW:
3778 mask [0] = ((imask >> 0) & 3);
3779 mask [1] = ((imask >> 2) & 3);
3780 mask [2] = ((imask >> 4) & 3);
3781 mask [3] = ((imask >> 6) & 3);
3786 v1 = values [ins->sreg1];
3787 v2 = LLVMGetUndef (LLVMTypeOf (v1));
3789 case OP_PSHUFLEW_HIGH:
3795 mask [4] = 4 + ((imask >> 0) & 3);
3796 mask [5] = 4 + ((imask >> 2) & 3);
3797 mask [6] = 4 + ((imask >> 4) & 3);
3798 mask [7] = 4 + ((imask >> 6) & 3);
3799 v1 = values [ins->sreg1];
3800 v2 = LLVMGetUndef (LLVMTypeOf (v1));
3804 mask [0] = ((imask >> 0) & 3);
3805 mask [1] = ((imask >> 2) & 3);
3806 mask [2] = ((imask >> 4) & 3);
3807 mask [3] = ((imask >> 6) & 3);
3808 v1 = values [ins->sreg1];
3809 v2 = LLVMGetUndef (LLVMTypeOf (v1));
3812 g_assert_not_reached ();
3814 for (i = 0; i < mask_size; ++i)
3815 mask_values [i] = LLVMConstInt (LLVMInt32Type (), mask [i], FALSE);
3817 values [ins->dreg] =
3818 LLVMBuildShuffleVector (builder, v1, v2,
3819 LLVMConstVector (mask_values, mask_size), dname);
3823 case OP_UNPACK_LOWB:
3824 case OP_UNPACK_LOWW:
3825 case OP_UNPACK_LOWD:
3826 case OP_UNPACK_LOWQ:
3827 case OP_UNPACK_LOWPS:
3828 case OP_UNPACK_LOWPD:
3829 case OP_UNPACK_HIGHB:
3830 case OP_UNPACK_HIGHW:
3831 case OP_UNPACK_HIGHD:
3832 case OP_UNPACK_HIGHQ:
3833 case OP_UNPACK_HIGHPS:
3834 case OP_UNPACK_HIGHPD: {
3836 LLVMValueRef mask_values [16];
3837 int i, mask_size = 0;
3838 gboolean low = FALSE;
3840 switch (ins->opcode) {
3841 case OP_UNPACK_LOWB:
3845 case OP_UNPACK_LOWW:
3849 case OP_UNPACK_LOWD:
3850 case OP_UNPACK_LOWPS:
3854 case OP_UNPACK_LOWQ:
3855 case OP_UNPACK_LOWPD:
3859 case OP_UNPACK_HIGHB:
3862 case OP_UNPACK_HIGHW:
3865 case OP_UNPACK_HIGHD:
3866 case OP_UNPACK_HIGHPS:
3869 case OP_UNPACK_HIGHQ:
3870 case OP_UNPACK_HIGHPD:
3874 g_assert_not_reached ();
3878 for (i = 0; i < (mask_size / 2); ++i) {
3880 mask [(i * 2) + 1] = mask_size + i;
3883 for (i = 0; i < (mask_size / 2); ++i) {
3884 mask [(i * 2)] = (mask_size / 2) + i;
3885 mask [(i * 2) + 1] = mask_size + (mask_size / 2) + i;
3889 for (i = 0; i < mask_size; ++i)
3890 mask_values [i] = LLVMConstInt (LLVMInt32Type (), mask [i], FALSE);
3892 values [ins->dreg] =
3893 LLVMBuildShuffleVector (builder, values [ins->sreg1], values [ins->sreg2],
3894 LLVMConstVector (mask_values, mask_size), dname);
3899 LLVMTypeRef t = simd_op_to_llvm_type (ins->opcode);
3900 LLVMValueRef v, val;
3902 v = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3903 val = LLVMConstNull (t);
3904 val = LLVMBuildInsertElement (builder, val, v, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3905 val = LLVMBuildInsertElement (builder, val, v, LLVMConstInt (LLVMInt32Type (), 1, FALSE), dname);
3907 values [ins->dreg] = val;
3911 case OP_DUPPS_HIGH: {
3912 LLVMTypeRef t = simd_op_to_llvm_type (ins->opcode);
3913 LLVMValueRef v1, v2, val;
3916 if (ins->opcode == OP_DUPPS_LOW) {
3917 v1 = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3918 v2 = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 2, FALSE), "");
3920 v1 = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 1, FALSE), "");
3921 v2 = LLVMBuildExtractElement (builder, lhs, LLVMConstInt (LLVMInt32Type (), 3, FALSE), "");
3923 val = LLVMConstNull (t);
3924 val = LLVMBuildInsertElement (builder, val, v1, LLVMConstInt (LLVMInt32Type (), 0, FALSE), "");
3925 val = LLVMBuildInsertElement (builder, val, v1, LLVMConstInt (LLVMInt32Type (), 1, FALSE), "");
3926 val = LLVMBuildInsertElement (builder, val, v2, LLVMConstInt (LLVMInt32Type (), 2, FALSE), "");
3927 val = LLVMBuildInsertElement (builder, val, v2, LLVMConstInt (LLVMInt32Type (), 3, FALSE), "");
3929 values [ins->dreg] = val;
3939 * EXCEPTION HANDLING
3941 case OP_IMPLICIT_EXCEPTION:
3942 /* This marks a place where an implicit exception can happen */
3943 if (bb->region != -1)
3944 LLVM_FAILURE (ctx, "implicit-exception");
3948 MonoMethodSignature *throw_sig;
3949 LLVMValueRef callee, arg;
3950 gboolean rethrow = (ins->opcode == OP_RETHROW);
3951 const char *icall_name;
3953 callee = rethrow ? ctx->lmodule->rethrow : ctx->lmodule->throw;
3954 icall_name = rethrow ? "mono_arch_rethrow_exception" : "mono_arch_throw_exception";
3957 throw_sig = mono_metadata_signature_alloc (mono_get_corlib (), 1);
3958 throw_sig->ret = &mono_get_void_class ()->byval_arg;
3959 throw_sig->params [0] = &mono_get_object_class ()->byval_arg;
3960 if (cfg->compile_aot) {
3961 callee = get_plt_entry (ctx, sig_to_llvm_sig (ctx, throw_sig), MONO_PATCH_INFO_INTERNAL_METHOD, icall_name);
3963 callee = LLVMAddFunction (module, icall_name, sig_to_llvm_sig (ctx, throw_sig));
3967 * LLVM doesn't push the exception argument, so we need a different
3970 LLVMAddGlobalMapping (ee, callee, resolve_patch (cfg, MONO_PATCH_INFO_INTERNAL_METHOD, rethrow ? "llvm_rethrow_exception_trampoline" : "llvm_throw_exception_trampoline"));
3972 LLVMAddGlobalMapping (ee, callee, resolve_patch (cfg, MONO_PATCH_INFO_INTERNAL_METHOD, icall_name));
3976 mono_memory_barrier ();
3978 ctx->lmodule->rethrow = callee;
3980 ctx->lmodule->throw = callee;
3982 arg = convert (ctx, values [ins->sreg1], type_to_llvm_type (ctx, &mono_get_object_class ()->byval_arg));
3983 emit_call (ctx, bb, &builder, callee, &arg, 1);
3986 case OP_CALL_HANDLER: {
3988 * We don't 'call' handlers, but instead simply branch to them.
3989 * The code generated by ENDFINALLY will branch back to us.
3991 LLVMBasicBlockRef noex_bb;
3993 BBInfo *info = &bblocks [ins->inst_target_bb->block_num];
3995 bb_list = info->call_handler_return_bbs;
3998 * Set the indicator variable for the finally clause.
4000 lhs = info->finally_ind;
4002 LLVMBuildStore (builder, LLVMConstInt (LLVMInt32Type (), g_slist_length (bb_list) + 1, FALSE), lhs);
4004 /* Branch to the finally clause */
4005 LLVMBuildBr (builder, info->call_handler_target_bb);
4007 noex_bb = gen_bb (ctx, "CALL_HANDLER_CONT_BB");
4008 info->call_handler_return_bbs = g_slist_append_mempool (cfg->mempool, info->call_handler_return_bbs, noex_bb);
4010 builder = ctx->builder = create_builder (ctx);
4011 LLVMPositionBuilderAtEnd (ctx->builder, noex_bb);
4013 bblocks [bb->block_num].end_bblock = noex_bb;
4016 case OP_START_HANDLER: {
4019 case OP_ENDFINALLY: {
4020 LLVMBasicBlockRef resume_bb;
4021 MonoBasicBlock *handler_bb;
4022 LLVMValueRef val, switch_ins, callee;
4026 handler_bb = g_hash_table_lookup (ctx->region_to_handler, GUINT_TO_POINTER (mono_get_block_region_notry (cfg, bb->region)));
4027 g_assert (handler_bb);
4028 info = &bblocks [handler_bb->block_num];
4029 lhs = info->finally_ind;
4032 bb_list = info->call_handler_return_bbs;
4034 resume_bb = gen_bb (ctx, "ENDFINALLY_RESUME_BB");
4036 /* Load the finally variable */
4037 val = LLVMBuildLoad (builder, lhs, "");
4039 /* Reset the variable */
4040 LLVMBuildStore (builder, LLVMConstInt (LLVMInt32Type (), 0, FALSE), lhs);
4042 /* Branch to either resume_bb, or to the bblocks in bb_list */
4043 switch_ins = LLVMBuildSwitch (builder, val, resume_bb, g_slist_length (bb_list));
4045 * The other targets are added at the end to handle OP_CALL_HANDLER
4046 * opcodes processed later.
4048 info->endfinally_switch_ins_list = g_slist_append_mempool (cfg->mempool, info->endfinally_switch_ins_list, switch_ins);
4050 builder = ctx->builder = create_builder (ctx);
4051 LLVMPositionBuilderAtEnd (ctx->builder, resume_bb);
4053 if (ctx->cfg->compile_aot) {
4054 callee = get_plt_entry (ctx, LLVMFunctionType (LLVMVoidType (), NULL, 0, FALSE), MONO_PATCH_INFO_INTERNAL_METHOD, "llvm_resume_unwind_trampoline");
4056 callee = LLVMGetNamedFunction (module, "llvm_resume_unwind_trampoline");
4058 LLVMBuildCall (builder, callee, NULL, 0, "");
4060 LLVMBuildUnreachable (builder);
4061 has_terminator = TRUE;
4067 sprintf (reason, "opcode %s", mono_inst_name (ins->opcode));
4068 LLVM_FAILURE (ctx, reason);
4073 /* Convert the value to the type required by phi nodes */
4074 if (spec [MONO_INST_DEST] != ' ' && !MONO_IS_STORE_MEMBASE (ins) && ctx->vreg_types [ins->dreg]) {
4075 if (!values [ins->dreg])
4077 values [ins->dreg] = addresses [ins->dreg];
4079 values [ins->dreg] = convert (ctx, values [ins->dreg], ctx->vreg_types [ins->dreg]);
4082 /* Add stores for volatile variables */
4083 if (spec [MONO_INST_DEST] != ' ' && spec [MONO_INST_DEST] != 'v' && !MONO_IS_STORE_MEMBASE (ins))
4084 emit_volatile_store (ctx, ins->dreg);
4087 if (!has_terminator && bb->next_bb && (bb == cfg->bb_entry || bb->in_count > 0))
4088 LLVMBuildBr (builder, get_bb (ctx, bb->next_bb));
4090 if (bb == cfg->bb_exit && sig->ret->type == MONO_TYPE_VOID)
4091 LLVMBuildRetVoid (builder);
4093 if (bb == cfg->bb_entry)
4094 ctx->last_alloca = LLVMGetLastInstruction (get_bb (ctx, cfg->bb_entry));
4103 * mono_llvm_check_method_supported:
4105 * Do some quick checks to decide whenever cfg->method can be compiled by LLVM, to avoid
4106 * compiling a method twice.
4109 mono_llvm_check_method_supported (MonoCompile *cfg)
4112 MonoMethodHeader *header = cfg->header;
4113 MonoExceptionClause *clause;
4117 if (cfg->method->save_lmf) {
4118 cfg->exception_message = g_strdup ("lmf");
4119 cfg->disable_llvm = TRUE;
4123 for (i = 0; i < header->num_clauses; ++i) {
4124 clause = &header->clauses [i];
4126 if (i > 0 && clause->try_offset <= header->clauses [i - 1].handler_offset + header->clauses [i - 1].handler_len) {
4128 * FIXME: Some tests still fail with nested clauses.
4130 cfg->exception_message = g_strdup ("nested clauses");
4131 cfg->disable_llvm = TRUE;
4137 if (cfg->method->dynamic) {
4138 cfg->exception_message = g_strdup ("dynamic.");
4139 cfg->disable_llvm = TRUE;
4144 * mono_llvm_emit_method:
4146 * Emit LLVM IL from the mono IL, and compile it to native code using LLVM.
4149 mono_llvm_emit_method (MonoCompile *cfg)
4152 MonoMethodSignature *sig;
4154 LLVMTypeRef method_type;
4155 LLVMValueRef method = NULL;
4157 LLVMValueRef *values;
4158 int i, max_block_num, bb_index;
4159 gboolean last = FALSE;
4160 GPtrArray *phi_values;
4161 LLVMCallInfo *linfo;
4163 LLVMModuleRef module;
4165 GPtrArray *bblock_list;
4166 MonoMethodHeader *header;
4167 MonoExceptionClause *clause;
4171 /* The code below might acquire the loader lock, so use it for global locking */
4172 mono_loader_lock ();
4174 /* Used to communicate with the callbacks */
4175 mono_native_tls_set_value (current_cfg_tls_id, cfg);
4177 ctx = g_new0 (EmitContext, 1);
4179 ctx->mempool = cfg->mempool;
4182 * This maps vregs to the LLVM instruction defining them
4184 values = g_new0 (LLVMValueRef, cfg->next_vreg);
4186 * This maps vregs for volatile variables to the LLVM instruction defining their
4189 ctx->addresses = g_new0 (LLVMValueRef, cfg->next_vreg);
4190 ctx->vreg_types = g_new0 (LLVMTypeRef, cfg->next_vreg);
4191 ctx->vreg_cli_types = g_new0 (MonoType*, cfg->next_vreg);
4192 phi_values = g_ptr_array_new ();
4194 * This signals whenever the vreg was defined by a phi node with no input vars
4195 * (i.e. all its input bblocks end with NOT_REACHABLE).
4197 ctx->is_dead = g_new0 (gboolean, cfg->next_vreg);
4198 /* Whenever the bblock is unreachable */
4199 ctx->unreachable = g_new0 (gboolean, cfg->max_block_num);
4201 bblock_list = g_ptr_array_new ();
4203 ctx->values = values;
4204 ctx->region_to_handler = g_hash_table_new (NULL, NULL);
4206 if (cfg->compile_aot) {
4207 ctx->lmodule = &aot_module;
4208 method_name = mono_aot_get_method_name (cfg);
4209 cfg->llvm_method_name = g_strdup (method_name);
4212 ctx->lmodule = &jit_module;
4213 method_name = mono_method_full_name (cfg->method, TRUE);
4216 module = ctx->module = ctx->lmodule->module;
4220 static int count = 0;
4223 if (getenv ("LLVM_COUNT")) {
4224 if (count == atoi (getenv ("LLVM_COUNT"))) {
4225 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
4229 if (count > atoi (getenv ("LLVM_COUNT")))
4230 LLVM_FAILURE (ctx, "");
4235 sig = mono_method_signature (cfg->method);
4238 linfo = mono_arch_get_llvm_call_info (cfg, sig);
4240 CHECK_FAILURE (ctx);
4243 linfo->rgctx_arg = TRUE;
4244 method_type = sig_to_llvm_sig_full (ctx, sig, linfo, &sinfo);
4245 CHECK_FAILURE (ctx);
4248 * This maps parameter indexes in the original signature to the indexes in
4249 * the LLVM signature.
4251 ctx->pindexes = sinfo.pindexes;
4253 method = LLVMAddFunction (module, method_name, method_type);
4254 ctx->lmethod = method;
4256 #ifdef LLVM_MONO_BRANCH
4257 LLVMSetFunctionCallConv (method, LLVMMono1CallConv);
4259 LLVMSetLinkage (method, LLVMPrivateLinkage);
4261 LLVMAddFunctionAttr (method, LLVMUWTable);
4263 if (cfg->compile_aot) {
4264 LLVMSetLinkage (method, LLVMInternalLinkage);
4265 LLVMSetVisibility (method, LLVMHiddenVisibility);
4267 LLVMSetLinkage (method, LLVMPrivateLinkage);
4270 if (cfg->method->save_lmf)
4271 LLVM_FAILURE (ctx, "lmf");
4273 if (sig->pinvoke && cfg->method->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE)
4274 LLVM_FAILURE (ctx, "pinvoke signature");
4276 header = cfg->header;
4277 for (i = 0; i < header->num_clauses; ++i) {
4278 clause = &header->clauses [i];
4279 if (clause->flags != MONO_EXCEPTION_CLAUSE_FINALLY && clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
4280 LLVM_FAILURE (ctx, "non-finally/catch clause.");
4283 if (linfo->rgctx_arg) {
4284 ctx->rgctx_arg = LLVMGetParam (method, sinfo.rgctx_arg_pindex);
4286 * We mark the rgctx parameter with the inreg attribute, which is mapped to
4287 * MONO_ARCH_RGCTX_REG in the Mono calling convention in llvm, i.e.
4288 * CC_X86_64_Mono in X86CallingConv.td.
4290 LLVMAddAttribute (ctx->rgctx_arg, LLVMInRegAttribute);
4291 LLVMSetValueName (ctx->rgctx_arg, "rgctx");
4293 if (cfg->vret_addr) {
4294 values [cfg->vret_addr->dreg] = LLVMGetParam (method, sinfo.vret_arg_pindex);
4295 LLVMSetValueName (values [cfg->vret_addr->dreg], "vret");
4298 values [cfg->args [0]->dreg] = LLVMGetParam (method, sinfo.this_arg_pindex);
4299 LLVMSetValueName (values [cfg->args [0]->dreg], "this");
4302 names = g_new (char *, sig->param_count);
4303 mono_method_get_param_names (cfg->method, (const char **) names);
4305 for (i = 0; i < sig->param_count; ++i) {
4308 values [cfg->args [i + sig->hasthis]->dreg] = LLVMGetParam (method, sinfo.pindexes [i]);
4309 if (names [i] && names [i][0] != '\0')
4310 name = g_strdup_printf ("arg_%s", names [i]);
4312 name = g_strdup_printf ("arg_%d", i);
4313 LLVMSetValueName (values [cfg->args [i + sig->hasthis]->dreg], name);
4315 if (linfo->args [i + sig->hasthis].storage == LLVMArgVtypeByVal)
4316 LLVMAddAttribute (LLVMGetParam (method, sinfo.pindexes [i]), LLVMByValAttribute);
4321 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4322 max_block_num = MAX (max_block_num, bb->block_num);
4323 ctx->bblocks = bblocks = g_new0 (BBInfo, max_block_num + 1);
4325 /* Add branches between non-consecutive bblocks */
4326 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4327 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
4328 bb->next_bb != bb->last_ins->inst_false_bb) {
4330 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
4331 inst->opcode = OP_BR;
4332 inst->inst_target_bb = bb->last_ins->inst_false_bb;
4333 mono_bblock_add_inst (bb, inst);
4338 * The INDIRECT flag added by OP_LDADDR inhibits optimizations, even if the LDADDR
4339 * was later optimized away, so clear these flags, and add them back for the still
4340 * present OP_LDADDR instructions.
4342 for (i = 0; i < cfg->next_vreg; ++i) {
4345 ins = get_vreg_to_inst (cfg, i);
4346 if (ins && ins != cfg->rgctx_var)
4347 ins->flags &= ~MONO_INST_INDIRECT;
4351 * Make a first pass over the code to precreate PHI nodes/set INDIRECT flags.
4353 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4355 LLVMBuilderRef builder;
4357 char dname_buf[128];
4359 builder = create_builder (ctx);
4361 for (ins = bb->code; ins; ins = ins->next) {
4362 switch (ins->opcode) {
4367 LLVMTypeRef phi_type = llvm_type_to_stack_type (type_to_llvm_type (ctx, &ins->klass->byval_arg));
4369 CHECK_FAILURE (ctx);
4371 if (ins->opcode == OP_VPHI) {
4372 /* Treat valuetype PHI nodes as operating on the address itself */
4373 g_assert (ins->klass);
4374 phi_type = LLVMPointerType (type_to_llvm_type (ctx, &ins->klass->byval_arg), 0);
4378 * Have to precreate these, as they can be referenced by
4379 * earlier instructions.
4381 sprintf (dname_buf, "t%d", ins->dreg);
4383 values [ins->dreg] = LLVMBuildPhi (builder, phi_type, dname);
4385 if (ins->opcode == OP_VPHI)
4386 ctx->addresses [ins->dreg] = values [ins->dreg];
4388 g_ptr_array_add (phi_values, values [ins->dreg]);
4391 * Set the expected type of the incoming arguments since these have
4392 * to have the same type.
4394 for (i = 0; i < ins->inst_phi_args [0]; i++) {
4395 int sreg1 = ins->inst_phi_args [i + 1];
4398 ctx->vreg_types [sreg1] = phi_type;
4403 ((MonoInst*)ins->inst_p0)->flags |= MONO_INST_INDIRECT;
4412 * Create an ordering for bblocks, use the depth first order first, then
4413 * put the exception handling bblocks last.
4415 for (bb_index = 0; bb_index < cfg->num_bblocks; ++bb_index) {
4416 bb = cfg->bblocks [bb_index];
4417 if (!(bb->region != -1 && !MONO_BBLOCK_IS_IN_REGION (bb, MONO_REGION_TRY))) {
4418 g_ptr_array_add (bblock_list, bb);
4419 bblocks [bb->block_num].added = TRUE;
4423 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4424 if (!bblocks [bb->block_num].added)
4425 g_ptr_array_add (bblock_list, bb);
4429 * Second pass: generate code.
4431 for (bb_index = 0; bb_index < bblock_list->len; ++bb_index) {
4432 bb = g_ptr_array_index (bblock_list, bb_index);
4434 if (!(bb == cfg->bb_entry || bb->in_count > 0))
4437 process_bb (ctx, bb);
4438 CHECK_FAILURE (ctx);
4441 /* Add incoming phi values */
4442 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4443 GSList *l, *ins_list;
4445 ins_list = bblocks [bb->block_num].phi_nodes;
4447 for (l = ins_list; l; l = l->next) {
4448 PhiNode *node = l->data;
4449 MonoInst *phi = node->phi;
4450 int sreg1 = node->sreg;
4451 LLVMBasicBlockRef in_bb;
4456 in_bb = get_end_bb (ctx, node->in_bb);
4458 if (ctx->unreachable [node->in_bb->block_num])
4461 if (!values [sreg1])
4462 /* Can happen with values in EH clauses */
4463 LLVM_FAILURE (ctx, "incoming phi sreg1");
4465 if (phi->opcode == OP_VPHI) {
4466 g_assert (LLVMTypeOf (ctx->addresses [sreg1]) == LLVMTypeOf (values [phi->dreg]));
4467 LLVMAddIncoming (values [phi->dreg], &ctx->addresses [sreg1], &in_bb, 1);
4469 g_assert (LLVMTypeOf (values [sreg1]) == LLVMTypeOf (values [phi->dreg]));
4470 LLVMAddIncoming (values [phi->dreg], &values [sreg1], &in_bb, 1);
4475 /* Create the SWITCH statements for ENDFINALLY instructions */
4476 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4477 BBInfo *info = &bblocks [bb->block_num];
4479 for (l = info->endfinally_switch_ins_list; l; l = l->next) {
4480 LLVMValueRef switch_ins = l->data;
4481 GSList *bb_list = info->call_handler_return_bbs;
4483 for (i = 0; i < g_slist_length (bb_list); ++i)
4484 LLVMAddCase (switch_ins, LLVMConstInt (LLVMInt32Type (), i + 1, FALSE), g_slist_nth (bb_list, i)->data);
4488 if (cfg->verbose_level > 1)
4489 mono_llvm_dump_value (method);
4491 mark_as_used (module, method);
4493 if (cfg->compile_aot) {
4494 /* Don't generate native code, keep the LLVM IR */
4495 if (cfg->compile_aot && cfg->verbose_level)
4496 printf ("%s emitted as %s\n", mono_method_full_name (cfg->method, TRUE), method_name);
4498 //LLVMVerifyFunction(method, 0);
4500 mono_llvm_optimize_method (method);
4502 if (cfg->verbose_level > 1)
4503 mono_llvm_dump_value (method);
4505 cfg->native_code = LLVMGetPointerToGlobal (ee, method);
4507 /* Set by emit_cb */
4508 g_assert (cfg->code_len);
4510 /* FIXME: Free the LLVM IL for the function */
4518 /* Need to add unused phi nodes as they can be referenced by other values */
4519 LLVMBasicBlockRef phi_bb = LLVMAppendBasicBlock (method, "PHI_BB");
4520 LLVMBuilderRef builder;
4522 builder = create_builder (ctx);
4523 LLVMPositionBuilderAtEnd (builder, phi_bb);
4525 for (i = 0; i < phi_values->len; ++i) {
4526 LLVMValueRef v = g_ptr_array_index (phi_values, i);
4527 if (LLVMGetInstructionParent (v) == NULL)
4528 LLVMInsertIntoBuilder (builder, v);
4531 LLVMDeleteFunction (method);
4536 g_free (ctx->addresses);
4537 g_free (ctx->vreg_types);
4538 g_free (ctx->vreg_cli_types);
4539 g_free (ctx->pindexes);
4540 g_free (ctx->is_dead);
4541 g_free (ctx->unreachable);
4542 g_ptr_array_free (phi_values, TRUE);
4543 g_free (ctx->bblocks);
4544 g_hash_table_destroy (ctx->region_to_handler);
4545 g_free (method_name);
4546 g_ptr_array_free (bblock_list, TRUE);
4548 for (l = ctx->builders; l; l = l->next) {
4549 LLVMBuilderRef builder = l->data;
4550 LLVMDisposeBuilder (builder);
4555 mono_native_tls_set_value (current_cfg_tls_id, NULL);
4557 mono_loader_unlock ();
4561 * mono_llvm_emit_call:
4563 * Same as mono_arch_emit_call () for LLVM.
4566 mono_llvm_emit_call (MonoCompile *cfg, MonoCallInst *call)
4569 MonoMethodSignature *sig;
4570 int i, n, stack_size;
4575 sig = call->signature;
4576 n = sig->param_count + sig->hasthis;
4578 call->cinfo = mono_arch_get_llvm_call_info (cfg, sig);
4580 if (cfg->disable_llvm)
4583 if (sig->call_convention == MONO_CALL_VARARG) {
4584 cfg->exception_message = g_strdup ("varargs");
4585 cfg->disable_llvm = TRUE;
4588 for (i = 0; i < n; ++i) {
4591 ainfo = call->cinfo->args + i;
4593 in = call->args [i];
4595 /* Simply remember the arguments */
4596 switch (ainfo->storage) {
4598 case LLVMArgInFPReg: {
4599 MonoType *t = (sig->hasthis && i == 0) ? &mono_get_intptr_class ()->byval_arg : sig->params [i - sig->hasthis];
4601 if (!t->byref && (t->type == MONO_TYPE_R8 || t->type == MONO_TYPE_R4)) {
4602 MONO_INST_NEW (cfg, ins, OP_FMOVE);
4603 ins->dreg = mono_alloc_freg (cfg);
4605 MONO_INST_NEW (cfg, ins, OP_MOVE);
4606 ins->dreg = mono_alloc_ireg (cfg);
4608 ins->sreg1 = in->dreg;
4611 case LLVMArgVtypeByVal:
4612 case LLVMArgVtypeInReg:
4613 MONO_INST_NEW (cfg, ins, OP_LLVM_OUTARG_VT);
4614 ins->dreg = mono_alloc_ireg (cfg);
4615 ins->sreg1 = in->dreg;
4616 ins->klass = mono_class_from_mono_type (sig->params [i - sig->hasthis]);
4619 call->cinfo = mono_arch_get_llvm_call_info (cfg, sig);
4620 cfg->exception_message = g_strdup ("ainfo->storage");
4621 cfg->disable_llvm = TRUE;
4625 if (!cfg->disable_llvm) {
4626 MONO_ADD_INS (cfg->cbb, ins);
4627 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, 0, FALSE);
4632 static unsigned char*
4633 alloc_cb (LLVMValueRef function, int size)
4637 cfg = mono_native_tls_get_value (current_cfg_tls_id);
4641 return mono_domain_code_reserve (cfg->domain, size);
4643 return mono_domain_code_reserve (mono_domain_get (), size);
4648 emitted_cb (LLVMValueRef function, void *start, void *end)
4652 cfg = mono_native_tls_get_value (current_cfg_tls_id);
4654 cfg->code_len = (guint8*)end - (guint8*)start;
4658 exception_cb (void *data)
4661 MonoJitExceptionInfo *ei;
4662 guint32 ei_len, i, j, nested_len, nindex;
4663 gpointer *type_info;
4664 int this_reg, this_offset;
4666 cfg = mono_native_tls_get_value (current_cfg_tls_id);
4670 * data points to a DWARF FDE structure, convert it to our unwind format and
4672 * An alternative would be to save it directly, and modify our unwinder to work
4675 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);
4677 /* Count nested clauses */
4679 for (i = 0; i < ei_len; ++i) {
4680 for (j = 0; j < ei_len; ++j) {
4681 gint32 cindex1 = *(gint32*)type_info [i];
4682 MonoExceptionClause *clause1 = &cfg->header->clauses [cindex1];
4683 gint32 cindex2 = *(gint32*)type_info [j];
4684 MonoExceptionClause *clause2 = &cfg->header->clauses [cindex2];
4686 if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset) {
4692 cfg->llvm_ex_info = mono_mempool_alloc0 (cfg->mempool, (ei_len + nested_len) * sizeof (MonoJitExceptionInfo));
4693 cfg->llvm_ex_info_len = ei_len + nested_len;
4694 memcpy (cfg->llvm_ex_info, ei, ei_len * sizeof (MonoJitExceptionInfo));
4695 /* Fill the rest of the information from the type info */
4696 for (i = 0; i < ei_len; ++i) {
4697 gint32 clause_index = *(gint32*)type_info [i];
4698 MonoExceptionClause *clause = &cfg->header->clauses [clause_index];
4700 cfg->llvm_ex_info [i].flags = clause->flags;
4701 cfg->llvm_ex_info [i].data.catch_class = clause->data.catch_class;
4705 * For nested clauses, the LLVM produced exception info associates the try interval with
4706 * the innermost handler, while mono expects it to be associated with all nesting clauses.
4708 /* FIXME: These should be order with the normal clauses */
4710 for (i = 0; i < ei_len; ++i) {
4711 for (j = 0; j < ei_len; ++j) {
4712 gint32 cindex1 = *(gint32*)type_info [i];
4713 MonoExceptionClause *clause1 = &cfg->header->clauses [cindex1];
4714 gint32 cindex2 = *(gint32*)type_info [j];
4715 MonoExceptionClause *clause2 = &cfg->header->clauses [cindex2];
4717 if (cindex1 != cindex2 && clause1->try_offset >= clause2->try_offset && clause1->handler_offset <= clause2->handler_offset) {
4719 * The try interval comes from the nested clause, everything else from the
4722 memcpy (&cfg->llvm_ex_info [nindex], &cfg->llvm_ex_info [j], sizeof (MonoJitExceptionInfo));
4723 cfg->llvm_ex_info [nindex].try_start = cfg->llvm_ex_info [i].try_start;
4724 cfg->llvm_ex_info [nindex].try_end = cfg->llvm_ex_info [i].try_end;
4729 g_assert (nindex == ei_len + nested_len);
4730 cfg->llvm_this_reg = this_reg;
4731 cfg->llvm_this_offset = this_offset;
4733 /* type_info [i] is cfg mempool allocated, no need to free it */
4740 dlsym_cb (const char *name, void **symbol)
4744 current = mono_dl_open (NULL, 0, NULL);
4747 return mono_dl_symbol (current, name, symbol);
4751 AddFunc (LLVMModuleRef module, const char *name, LLVMTypeRef ret_type, LLVMTypeRef *param_types, int nparams)
4753 LLVMAddFunction (module, name, LLVMFunctionType (ret_type, param_types, nparams, FALSE));
4757 AddFunc2 (LLVMModuleRef module, const char *name, LLVMTypeRef ret_type, LLVMTypeRef param_type1, LLVMTypeRef param_type2)
4759 LLVMTypeRef param_types [4];
4761 param_types [0] = param_type1;
4762 param_types [1] = param_type2;
4764 AddFunc (module, name, ret_type, param_types, 2);
4768 add_intrinsics (LLVMModuleRef module)
4770 /* Emit declarations of instrinsics */
4772 * It would be nicer to emit only the intrinsics actually used, but LLVM's Module
4773 * type doesn't seem to do any locking.
4776 LLVMTypeRef memset_params [] = { LLVMPointerType (LLVMInt8Type (), 0), LLVMInt8Type (), LLVMInt32Type (), LLVMInt32Type (), LLVMInt1Type () };
4778 memset_param_count = 5;
4779 memset_func_name = "llvm.memset.p0i8.i32";
4781 LLVMAddFunction (module, memset_func_name, LLVMFunctionType (LLVMVoidType (), memset_params, memset_param_count, FALSE));
4785 LLVMTypeRef memcpy_params [] = { LLVMPointerType (LLVMInt8Type (), 0), LLVMPointerType (LLVMInt8Type (), 0), LLVMInt32Type (), LLVMInt32Type (), LLVMInt1Type () };
4787 memcpy_param_count = 5;
4788 memcpy_func_name = "llvm.memcpy.p0i8.p0i8.i32";
4790 LLVMAddFunction (module, memcpy_func_name, LLVMFunctionType (LLVMVoidType (), memcpy_params, memcpy_param_count, FALSE));
4794 LLVMTypeRef params [] = { LLVMDoubleType () };
4796 LLVMAddFunction (module, "llvm.sin.f64", LLVMFunctionType (LLVMDoubleType (), params, 1, FALSE));
4797 LLVMAddFunction (module, "llvm.cos.f64", LLVMFunctionType (LLVMDoubleType (), params, 1, FALSE));
4798 LLVMAddFunction (module, "llvm.sqrt.f64", LLVMFunctionType (LLVMDoubleType (), params, 1, FALSE));
4800 /* This isn't an intrinsic, instead llvm seems to special case it by name */
4801 LLVMAddFunction (module, "fabs", LLVMFunctionType (LLVMDoubleType (), params, 1, FALSE));
4805 LLVMTypeRef ovf_res_i32 [] = { LLVMInt32Type (), LLVMInt1Type () };
4806 LLVMTypeRef ovf_params_i32 [] = { LLVMInt32Type (), LLVMInt32Type () };
4808 LLVMAddFunction (module, "llvm.sadd.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4809 LLVMAddFunction (module, "llvm.uadd.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4810 LLVMAddFunction (module, "llvm.ssub.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4811 LLVMAddFunction (module, "llvm.usub.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4812 LLVMAddFunction (module, "llvm.smul.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4813 LLVMAddFunction (module, "llvm.umul.with.overflow.i32", LLVMFunctionType (LLVMStructType (ovf_res_i32, 2, FALSE), ovf_params_i32, 2, FALSE));
4817 LLVMTypeRef ovf_res_i64 [] = { LLVMInt64Type (), LLVMInt1Type () };
4818 LLVMTypeRef ovf_params_i64 [] = { LLVMInt64Type (), LLVMInt64Type () };
4820 LLVMAddFunction (module, "llvm.sadd.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4821 LLVMAddFunction (module, "llvm.uadd.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4822 LLVMAddFunction (module, "llvm.ssub.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4823 LLVMAddFunction (module, "llvm.usub.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4824 LLVMAddFunction (module, "llvm.smul.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4825 LLVMAddFunction (module, "llvm.umul.with.overflow.i64", LLVMFunctionType (LLVMStructType (ovf_res_i64, 2, FALSE), ovf_params_i64, 2, FALSE));
4829 LLVMTypeRef struct_ptr = LLVMPointerType (LLVMStructType (NULL, 0, FALSE), 0);
4830 LLVMTypeRef invariant_start_params [] = { LLVMInt64Type (), LLVMPointerType (LLVMInt8Type (), 0) };
4831 LLVMTypeRef invariant_end_params [] = { struct_ptr, LLVMInt64Type (), LLVMPointerType (LLVMInt8Type (), 0) };
4833 LLVMAddFunction (module, "llvm.invariant.start", LLVMFunctionType (struct_ptr, invariant_start_params, 2, FALSE));
4835 LLVMAddFunction (module, "llvm.invariant.end", LLVMFunctionType (LLVMVoidType (), invariant_end_params, 3, FALSE));
4840 LLVMTypeRef arg_types [2];
4841 LLVMTypeRef ret_type;
4843 arg_types [0] = LLVMPointerType (LLVMInt8Type (), 0);
4844 arg_types [1] = LLVMPointerType (LLVMInt8Type (), 0);
4845 ret_type = LLVMInt32Type ();
4847 LLVMAddFunction (module, "mono_personality", LLVMFunctionType (LLVMVoidType (), NULL, 0, FALSE));
4849 LLVMAddFunction (module, "llvm_resume_unwind_trampoline", LLVMFunctionType (LLVMVoidType (), NULL, 0, FALSE));
4852 /* SSE intrinsics */
4854 LLVMTypeRef ret_type, arg_types [16];
4857 ret_type = type_to_simd_type (MONO_TYPE_I4);
4858 arg_types [0] = ret_type;
4859 arg_types [1] = ret_type;
4860 AddFunc (module, "llvm.x86.sse41.pminud", ret_type, arg_types, 2);
4861 AddFunc (module, "llvm.x86.sse41.pmaxud", ret_type, arg_types, 2);
4863 ret_type = type_to_simd_type (MONO_TYPE_I2);
4864 arg_types [0] = ret_type;
4865 arg_types [1] = ret_type;
4866 AddFunc (module, "llvm.x86.sse41.pminuw", ret_type, arg_types, 2);
4867 AddFunc (module, "llvm.x86.sse2.pmins.w", ret_type, arg_types, 2);
4868 AddFunc (module, "llvm.x86.sse41.pmaxuw", ret_type, arg_types, 2);
4869 AddFunc (module, "llvm.x86.sse2.padds.w", ret_type, arg_types, 2);
4870 AddFunc (module, "llvm.x86.sse2.psubs.w", ret_type, arg_types, 2);
4871 AddFunc (module, "llvm.x86.sse2.paddus.w", ret_type, arg_types, 2);
4872 AddFunc (module, "llvm.x86.sse2.psubus.w", ret_type, arg_types, 2);
4873 AddFunc (module, "llvm.x86.sse2.pavg.w", ret_type, arg_types, 2);
4874 AddFunc (module, "llvm.x86.sse2.pmulh.w", ret_type, arg_types, 2);
4875 AddFunc (module, "llvm.x86.sse2.pmulhu.w", ret_type, arg_types, 2);
4877 ret_type = type_to_simd_type (MONO_TYPE_I1);
4878 arg_types [0] = ret_type;
4879 arg_types [1] = ret_type;
4880 AddFunc (module, "llvm.x86.sse2.pminu.b", ret_type, arg_types, 2);
4881 AddFunc (module, "llvm.x86.sse2.pmaxu.b", ret_type, arg_types, 2);
4882 AddFunc (module, "llvm.x86.sse2.padds.b", ret_type, arg_types, 2);
4883 AddFunc (module, "llvm.x86.sse2.psubs.b", ret_type, arg_types, 2);
4884 AddFunc (module, "llvm.x86.sse2.paddus.b", ret_type, arg_types, 2);
4885 AddFunc (module, "llvm.x86.sse2.psubus.b", ret_type, arg_types, 2);
4886 AddFunc (module, "llvm.x86.sse2.pavg.b", ret_type, arg_types, 2);
4888 ret_type = type_to_simd_type (MONO_TYPE_R8);
4889 arg_types [0] = ret_type;
4890 arg_types [1] = ret_type;
4891 AddFunc (module, "llvm.x86.sse2.min.pd", ret_type, arg_types, 2);
4892 AddFunc (module, "llvm.x86.sse2.max.pd", ret_type, arg_types, 2);
4893 AddFunc (module, "llvm.x86.sse3.hadd.pd", ret_type, arg_types, 2);
4894 AddFunc (module, "llvm.x86.sse3.hsub.pd", ret_type, arg_types, 2);
4895 AddFunc (module, "llvm.x86.sse3.addsub.pd", ret_type, arg_types, 2);
4897 ret_type = type_to_simd_type (MONO_TYPE_R4);
4898 arg_types [0] = ret_type;
4899 arg_types [1] = ret_type;
4900 AddFunc (module, "llvm.x86.sse.min.ps", ret_type, arg_types, 2);
4901 AddFunc (module, "llvm.x86.sse.max.ps", ret_type, arg_types, 2);
4902 AddFunc (module, "llvm.x86.sse3.hadd.ps", ret_type, arg_types, 2);
4903 AddFunc (module, "llvm.x86.sse3.hsub.ps", ret_type, arg_types, 2);
4904 AddFunc (module, "llvm.x86.sse3.addsub.ps", ret_type, arg_types, 2);
4907 ret_type = type_to_simd_type (MONO_TYPE_I1);
4908 arg_types [0] = type_to_simd_type (MONO_TYPE_I2);
4909 arg_types [1] = type_to_simd_type (MONO_TYPE_I2);
4910 AddFunc (module, "llvm.x86.sse2.packsswb.128", ret_type, arg_types, 2);
4911 AddFunc (module, "llvm.x86.sse2.packuswb.128", ret_type, arg_types, 2);
4912 ret_type = type_to_simd_type (MONO_TYPE_I2);
4913 arg_types [0] = type_to_simd_type (MONO_TYPE_I4);
4914 arg_types [1] = type_to_simd_type (MONO_TYPE_I4);
4915 AddFunc (module, "llvm.x86.sse2.packssdw.128", ret_type, arg_types, 2);
4916 AddFunc (module, "llvm.x86.sse41.packusdw", ret_type, arg_types, 2);
4919 ret_type = type_to_simd_type (MONO_TYPE_R8);
4920 arg_types [0] = ret_type;
4921 arg_types [1] = ret_type;
4922 arg_types [2] = LLVMInt8Type ();
4923 AddFunc (module, "llvm.x86.sse2.cmp.pd", ret_type, arg_types, 3);
4924 ret_type = type_to_simd_type (MONO_TYPE_R4);
4925 arg_types [0] = ret_type;
4926 arg_types [1] = ret_type;
4927 arg_types [2] = LLVMInt8Type ();
4928 AddFunc (module, "llvm.x86.sse.cmp.ps", ret_type, arg_types, 3);
4930 /* Conversion ops */
4931 ret_type = type_to_simd_type (MONO_TYPE_R8);
4932 arg_types [0] = type_to_simd_type (MONO_TYPE_I4);
4933 AddFunc (module, "llvm.x86.sse2.cvtdq2pd", ret_type, arg_types, 1);
4934 ret_type = type_to_simd_type (MONO_TYPE_R4);
4935 arg_types [0] = type_to_simd_type (MONO_TYPE_I4);
4936 AddFunc (module, "llvm.x86.sse2.cvtdq2ps", ret_type, arg_types, 1);
4937 ret_type = type_to_simd_type (MONO_TYPE_I4);
4938 arg_types [0] = type_to_simd_type (MONO_TYPE_R8);
4939 AddFunc (module, "llvm.x86.sse2.cvtpd2dq", ret_type, arg_types, 1);
4940 ret_type = type_to_simd_type (MONO_TYPE_I4);
4941 arg_types [0] = type_to_simd_type (MONO_TYPE_R4);
4942 AddFunc (module, "llvm.x86.sse2.cvtps2dq", ret_type, arg_types, 1);
4943 ret_type = type_to_simd_type (MONO_TYPE_R4);
4944 arg_types [0] = type_to_simd_type (MONO_TYPE_R8);
4945 AddFunc (module, "llvm.x86.sse2.cvtpd2ps", ret_type, arg_types, 1);
4946 ret_type = type_to_simd_type (MONO_TYPE_R8);
4947 arg_types [0] = type_to_simd_type (MONO_TYPE_R4);
4948 AddFunc (module, "llvm.x86.sse2.cvtps2pd", ret_type, arg_types, 1);
4950 ret_type = type_to_simd_type (MONO_TYPE_I4);
4951 arg_types [0] = type_to_simd_type (MONO_TYPE_R8);
4952 AddFunc (module, "llvm.x86.sse2.cvttpd2dq", 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_R4);
4955 AddFunc (module, "llvm.x86.sse2.cvttps2dq", ret_type, arg_types, 1);
4958 ret_type = type_to_simd_type (MONO_TYPE_R8);
4959 arg_types [0] = ret_type;
4960 AddFunc (module, "llvm.x86.sse2.sqrt.pd", ret_type, arg_types, 1);
4961 ret_type = type_to_simd_type (MONO_TYPE_R4);
4962 arg_types [0] = ret_type;
4963 AddFunc (module, "llvm.x86.sse.sqrt.ps", ret_type, arg_types, 1);
4964 ret_type = type_to_simd_type (MONO_TYPE_R4);
4965 arg_types [0] = ret_type;
4966 AddFunc (module, "llvm.x86.sse.rsqrt.ps", ret_type, arg_types, 1);
4967 ret_type = type_to_simd_type (MONO_TYPE_R4);
4968 arg_types [0] = ret_type;
4969 AddFunc (module, "llvm.x86.sse.rcp.ps", ret_type, arg_types, 1);
4972 ret_type = type_to_simd_type (MONO_TYPE_I2);
4973 arg_types [0] = ret_type;
4974 arg_types [1] = LLVMInt32Type ();
4975 AddFunc (module, "llvm.x86.sse2.psrli.w", ret_type, arg_types, 2);
4976 AddFunc (module, "llvm.x86.sse2.psrai.w", ret_type, arg_types, 2);
4977 AddFunc (module, "llvm.x86.sse2.pslli.w", ret_type, arg_types, 2);
4978 ret_type = type_to_simd_type (MONO_TYPE_I4);
4979 arg_types [0] = ret_type;
4980 arg_types [1] = LLVMInt32Type ();
4981 AddFunc (module, "llvm.x86.sse2.psrli.d", ret_type, arg_types, 2);
4982 AddFunc (module, "llvm.x86.sse2.psrai.d", ret_type, arg_types, 2);
4983 AddFunc (module, "llvm.x86.sse2.pslli.d", ret_type, arg_types, 2);
4984 ret_type = type_to_simd_type (MONO_TYPE_I8);
4985 arg_types [0] = ret_type;
4986 arg_types [1] = LLVMInt32Type ();
4987 AddFunc (module, "llvm.x86.sse2.psrli.q", ret_type, arg_types, 2);
4988 AddFunc (module, "llvm.x86.sse2.pslli.q", ret_type, arg_types, 2);
4991 ret_type = LLVMInt32Type ();
4992 arg_types [0] = type_to_simd_type (MONO_TYPE_I1);
4993 AddFunc (module, "llvm.x86.sse2.pmovmskb.128", ret_type, arg_types, 1);
4996 AddFunc (module, "llvm.x86.sse2.pause", LLVMVoidType (), NULL, 0);
4998 /* Load/Store intrinsics */
5000 LLVMTypeRef arg_types [5];
5004 for (i = 1; i <= 8; i *= 2) {
5005 arg_types [0] = LLVMPointerType (LLVMIntType (i * 8), 0);
5006 arg_types [1] = LLVMInt32Type ();
5007 arg_types [2] = LLVMInt1Type ();
5008 sprintf (name, "llvm.mono.load.i%d.p0i%d", i * 8, i * 8);
5009 LLVMAddFunction (module, name, LLVMFunctionType (LLVMIntType (i * 8), arg_types, 3, FALSE));
5011 arg_types [0] = LLVMIntType (i * 8);
5012 arg_types [1] = LLVMPointerType (LLVMIntType (i * 8), 0);
5013 arg_types [2] = LLVMInt32Type ();
5014 arg_types [3] = LLVMInt1Type ();
5015 sprintf (name, "llvm.mono.store.i%d.p0i%d", i * 8, i * 8);
5016 LLVMAddFunction (module, name, LLVMFunctionType (LLVMVoidType (), arg_types, 4, FALSE));
5022 mono_llvm_init (void)
5024 mono_native_tls_alloc (¤t_cfg_tls_id, NULL);
5028 init_jit_module (void)
5030 MonoJitICallInfo *info;
5032 if (jit_module_inited)
5035 mono_loader_lock ();
5037 if (jit_module_inited) {
5038 mono_loader_unlock ();
5042 jit_module.module = LLVMModuleCreateWithName ("mono");
5044 ee = mono_llvm_create_ee (LLVMCreateModuleProviderForExistingModule (jit_module.module), alloc_cb, emitted_cb, exception_cb, dlsym_cb);
5046 add_intrinsics (jit_module.module);
5048 jit_module.llvm_types = g_hash_table_new (NULL, NULL);
5050 info = mono_find_jit_icall_by_name ("llvm_resume_unwind_trampoline");
5052 LLVMAddGlobalMapping (ee, LLVMGetNamedFunction (jit_module.module, "llvm_resume_unwind_trampoline"), (void*)info->func);
5054 jit_module_inited = TRUE;
5056 mono_loader_unlock ();
5060 mono_llvm_cleanup (void)
5063 mono_llvm_dispose_ee (ee);
5065 if (jit_module.llvm_types)
5066 g_hash_table_destroy (jit_module.llvm_types);
5068 if (aot_module.module)
5069 LLVMDisposeModule (aot_module.module);
5071 LLVMContextDispose (LLVMGetGlobalContext ());
5075 mono_llvm_create_aot_module (const char *got_symbol)
5077 /* Delete previous module */
5078 if (aot_module.plt_entries)
5079 g_hash_table_destroy (aot_module.plt_entries);
5080 if (aot_module.module)
5081 LLVMDisposeModule (aot_module.module);
5083 memset (&aot_module, 0, sizeof (aot_module));
5085 aot_module.module = LLVMModuleCreateWithName ("aot");
5086 aot_module.got_symbol = got_symbol;
5088 add_intrinsics (aot_module.module);
5092 * We couldn't compute the type of the LLVM global representing the got because
5093 * its size is only known after all the methods have been emitted. So create
5094 * a dummy variable, and replace all uses it with the real got variable when
5095 * its size is known in mono_llvm_emit_aot_module ().
5098 LLVMTypeRef got_type = LLVMArrayType (IntPtrType (), 0);
5100 aot_module.got_var = LLVMAddGlobal (aot_module.module, got_type, "mono_dummy_got");
5101 LLVMSetInitializer (aot_module.got_var, LLVMConstNull (got_type));
5104 /* Add a dummy personality function */
5106 LLVMBasicBlockRef lbb;
5107 LLVMBuilderRef lbuilder;
5108 LLVMValueRef personality;
5110 personality = LLVMAddFunction (aot_module.module, "mono_aot_personality", LLVMFunctionType (LLVMVoidType (), NULL, 0, FALSE));
5111 LLVMSetLinkage (personality, LLVMPrivateLinkage);
5112 lbb = LLVMAppendBasicBlock (personality, "BB0");
5113 lbuilder = LLVMCreateBuilder ();
5114 LLVMPositionBuilderAtEnd (lbuilder, lbb);
5115 LLVMBuildRetVoid (lbuilder);
5118 aot_module.llvm_types = g_hash_table_new (NULL, NULL);
5119 aot_module.plt_entries = g_hash_table_new (g_str_hash, g_str_equal);
5123 * Emit the aot module into the LLVM bitcode file FILENAME.
5126 mono_llvm_emit_aot_module (const char *filename, int got_size)
5128 LLVMTypeRef got_type;
5129 LLVMValueRef real_got;
5132 * Create the real got variable and replace all uses of the dummy variable with
5135 got_type = LLVMArrayType (IntPtrType (), got_size);
5136 real_got = LLVMAddGlobal (aot_module.module, got_type, aot_module.got_symbol);
5137 LLVMSetInitializer (real_got, LLVMConstNull (got_type));
5138 LLVMSetLinkage (real_got, LLVMInternalLinkage);
5140 mono_llvm_replace_uses_of (aot_module.got_var, real_got);
5142 mark_as_used (aot_module.module, real_got);
5144 /* Delete the dummy got so it doesn't become a global */
5145 LLVMDeleteGlobal (aot_module.got_var);
5151 if (LLVMVerifyModule (aot_module.module, LLVMReturnStatusAction, &verifier_err)) {
5152 g_assert_not_reached ();
5157 LLVMWriteBitcodeToFile (aot_module.module, filename);
5162 - Emit LLVM IR from the mono IR using the LLVM C API.
5163 - The original arch specific code remains, so we can fall back to it if we run
5164 into something we can't handle.
5168 A partial list of issues:
5169 - Handling of opcodes which can throw exceptions.
5171 In the mono JIT, these are implemented using code like this:
5178 push throw_pos - method
5179 call <exception trampoline>
5181 The problematic part is push throw_pos - method, which cannot be represented
5182 in the LLVM IR, since it does not support label values.
5183 -> this can be implemented in AOT mode using inline asm + labels, but cannot
5184 be implemented in JIT mode ?
5185 -> a possible but slower implementation would use the normal exception
5186 throwing code but it would need to control the placement of the throw code
5187 (it needs to be exactly after the compare+branch).
5188 -> perhaps add a PC offset intrinsics ?
5190 - efficient implementation of .ovf opcodes.
5192 These are currently implemented as:
5193 <ins which sets the condition codes>
5196 Some overflow opcodes are now supported by LLVM SVN.
5198 - exception handling, unwinding.
5199 - SSA is disabled for methods with exception handlers
5200 - How to obtain unwind info for LLVM compiled methods ?
5201 -> this is now solved by converting the unwind info generated by LLVM
5203 - LLVM uses the c++ exception handling framework, while we use our home grown
5204 code, and couldn't use the c++ one:
5205 - its not supported under VC++, other exotic platforms.
5206 - it might be impossible to support filter clauses with it.
5210 The trampolines need a predictable call sequence, since they need to disasm
5211 the calling code to obtain register numbers / offsets.
5213 LLVM currently generates this code in non-JIT mode:
5214 mov -0x98(%rax),%eax
5216 Here, the vtable pointer is lost.
5217 -> solution: use one vtable trampoline per class.
5219 - passing/receiving the IMT pointer/RGCTX.
5220 -> solution: pass them as normal arguments ?
5224 LLVM does not allow the specification of argument registers etc. This means
5225 that all calls are made according to the platform ABI.
5227 - passing/receiving vtypes.
5229 Vtypes passed/received in registers are handled by the front end by using
5230 a signature with scalar arguments, and loading the parts of the vtype into those
5233 Vtypes passed on the stack are handled using the 'byval' attribute.
5237 Supported though alloca, we need to emit the load/store code.
5241 The mono JIT uses pointer sized iregs/double fregs, while LLVM uses precisely
5242 typed registers, so we have to keep track of the precise LLVM type of each vreg.
5243 This is made easier because the IR is already in SSA form.
5244 An additional problem is that our IR is not consistent with types, i.e. i32/ia64
5245 types are frequently used incorrectly.
5250 Emit LLVM bytecode into a .bc file, compile it using llc into a .s file, then
5251 append the AOT data structures to that file. For methods which cannot be
5252 handled by LLVM, the normal JIT compiled versions are used.
5255 /* FIXME: Normalize some aspects of the mono IR to allow easier translation, like:
5256 * - each bblock should end with a branch
5257 * - setting the return value, making cfg->ret non-volatile
5258 * - avoid some transformations in the JIT which make it harder for us to generate
5260 * - use pointer types to help optimizations.