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comparison gen/llvmhelpers.cpp @ 1350:15e9762bb620

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Adds explicit alignment information for alloca instructions in general, there's a few cases that still needs to be looked at but this should catch the majority. Fixes ticket #293 .
author Tomas Lindquist Olsen <tomas.l.olsen gmail com>
date Thu, 14 May 2009 13:26:40 +0200
parents 04c36605feb9
children 8d501abecd24
comparison
equal deleted inserted replaced
1349:a376776e2301 1350:15e9762bb620
93 /*//////////////////////////////////////////////////////////////////////////////////////// 93 /*////////////////////////////////////////////////////////////////////////////////////////
94 // ALLOCA HELPERS 94 // ALLOCA HELPERS
95 ////////////////////////////////////////////////////////////////////////////////////////*/ 95 ////////////////////////////////////////////////////////////////////////////////////////*/
96 96
97 97
98 llvm::AllocaInst* DtoAlloca(const LLType* lltype, const std::string& name) 98 llvm::AllocaInst* DtoAlloca(Type* type, const char* name)
99 { 99 {
100 return new llvm::AllocaInst(lltype, name, gIR->topallocapoint()); 100 const llvm::Type* lltype = DtoType(type);
101 } 101 llvm::AllocaInst* ai = new llvm::AllocaInst(lltype, name, gIR->topallocapoint());
102 102 ai->setAlignment(type->alignsize());
103 llvm::AllocaInst* DtoAlloca(const LLType* lltype, LLValue* arraysize, const std::string& name) 103 return ai;
104 { 104 }
105 return new llvm::AllocaInst(lltype, arraysize, name, gIR->topallocapoint()); 105
106 llvm::AllocaInst* DtoArrayAlloca(Type* type, unsigned arraysize, const char* name)
107 {
108 const llvm::Type* lltype = DtoType(type);
109 llvm::AllocaInst* ai = new llvm::AllocaInst(
110 lltype, DtoConstUint(arraysize), name, gIR->topallocapoint());
111 ai->setAlignment(type->alignsize());
112 return ai;
113 }
114
115 llvm::AllocaInst* DtoRawAlloca(const llvm::Type* lltype, size_t alignment, const char* name)
116 {
117 llvm::AllocaInst* ai = new llvm::AllocaInst(lltype, name, gIR->topallocapoint());
118 if (alignment)
119 ai->setAlignment(alignment);
120 return ai;
106 } 121 }
107 122
108 123
109 /****************************************************************************************/ 124 /****************************************************************************************/
110 /*//////////////////////////////////////////////////////////////////////////////////////// 125 /*////////////////////////////////////////////////////////////////////////////////////////
892 907
893 llvm::Value* allocainst; 908 llvm::Value* allocainst;
894 if(gTargetData->getTypeSizeInBits(lltype) == 0) 909 if(gTargetData->getTypeSizeInBits(lltype) == 0)
895 allocainst = llvm::ConstantPointerNull::get(getPtrToType(lltype)); 910 allocainst = llvm::ConstantPointerNull::get(getPtrToType(lltype));
896 else 911 else
897 allocainst = DtoAlloca(lltype, vd->toChars()); 912 allocainst = DtoAlloca(vd->type, vd->toChars());
898 913
899 //allocainst->setAlignment(vd->type->alignsize()); // TODO 914 //allocainst->setAlignment(vd->type->alignsize()); // TODO
900 vd->ir.irLocal = new IrLocal(vd); 915 vd->ir.irLocal = new IrLocal(vd);
901 vd->ir.irLocal->value = allocainst; 916 vd->ir.irLocal->value = allocainst;
902 917
1008 1023
1009 // alloca if necessary 1024 // alloca if necessary
1010 LLValue* allocaval = NULL; 1025 LLValue* allocaval = NULL;
1011 if (!addr && (!var->ir.irLocal || !var->ir.irLocal->value)) 1026 if (!addr && (!var->ir.irLocal || !var->ir.irLocal->value))
1012 { 1027 {
1013 addr = DtoAlloca(DtoType(var->type), var->toChars()); 1028 addr = DtoAlloca(var->type, var->toChars());
1014 1029
1015 // add debug info 1030 // add debug info
1016 if (global.params.symdebug) 1031 if (global.params.symdebug)
1017 DtoDwarfLocalVariable(addr, var); 1032 DtoDwarfLocalVariable(addr, var);
1018 } 1033 }