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comparison gen/passes/GarbageCollect2Stack.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 3297edb697eb
children 67ac63740c7f
comparison
equal deleted inserted replaced
1349:a376776e2301 1350:15e9762bb620
96 // It will always be inserted before the call. 96 // It will always be inserted before the call.
97 virtual AllocaInst* promote(CallSite CS, IRBuilder<>& B, const Analysis& A) { 97 virtual AllocaInst* promote(CallSite CS, IRBuilder<>& B, const Analysis& A) {
98 NumGcToStack++; 98 NumGcToStack++;
99 99
100 Instruction* Begin = CS.getCaller()->getEntryBlock().begin(); 100 Instruction* Begin = CS.getCaller()->getEntryBlock().begin();
101 return new AllocaInst(Ty, ".nongc_mem", Begin); 101 return new AllocaInst(Ty, ".nongc_mem", Begin); // FIXME: align?
102 } 102 }
103 103
104 FunctionInfo(unsigned typeInfoArgNr, bool safeToDelete) 104 FunctionInfo(unsigned typeInfoArgNr, bool safeToDelete)
105 : TypeInfoArgNr(typeInfoArgNr), SafeToDelete(safeToDelete) {} 105 : TypeInfoArgNr(typeInfoArgNr), SafeToDelete(safeToDelete) {}
106 }; 106 };
163 NumToDynSize++; 163 NumToDynSize++;
164 } 164 }
165 165
166 // Convert array size to 32 bits if necessary 166 // Convert array size to 32 bits if necessary
167 Value* count = Builder.CreateIntCast(arrSize, Type::Int32Ty, false); 167 Value* count = Builder.CreateIntCast(arrSize, Type::Int32Ty, false);
168 AllocaInst* alloca = Builder.CreateAlloca(Ty, count, ".nongc_mem"); 168 AllocaInst* alloca = Builder.CreateAlloca(Ty, count, ".nongc_mem"); // FIXME: align?
169 169
170 if (Initialized) { 170 if (Initialized) {
171 // For now, only zero-init is supported. 171 // For now, only zero-init is supported.
172 uint64_t size = A.TD.getTypeStoreSize(Ty); 172 uint64_t size = A.TD.getTypeStoreSize(Ty);
173 Value* TypeSize = ConstantInt::get(arrSize->getType(), size); 173 Value* TypeSize = ConstantInt::get(arrSize->getType(), size);