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Update malloc call creation code (AllocType is now the element type of the malloc, not the resulting type).

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In getMallocArraySize(), fix bug in the case that array size is the product of 2 constants.

Extend isArrayMalloc() and getMallocArraySize() to handle case where malloc is used as char array.

Ensure that ArraySize in LowerAllocations::runOnBasicBlock() is correct type.

Extend Instruction::isSafeToSpeculativelyExecute() to handle malloc calls.

Add verification for malloc calls.

Reviewed by Dan Gohman.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82257 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Victor Hernandez
2009-09-18 19:20:02 +00:00
parent 6ba2e87061
commit 88d9839d07
7 changed files with 146 additions and 103 deletions
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8
lib/Transforms/Utils/LowerAllocations.cpp
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@@ -108,8 +108,12 @@ bool LowerAllocations::runOnBasicBlock(BasicBlock &BB) {
// Loop over all of the instructions, looking for malloc or free instructions
for (BasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I) {
if (MallocInst *MI = dyn_cast<MallocInst>(I)) {
Value *MCast = CallInst::CreateMalloc(I, MI->getType(), IntPtrTy,
MI->getOperand(0));
Value *ArraySize = MI->getOperand(0);
if (ArraySize->getType() != IntPtrTy)
ArraySize = CastInst::CreateIntegerCast(ArraySize, IntPtrTy,
false /*ZExt*/, "", I);
Value *MCast = CallInst::CreateMalloc(I, IntPtrTy,
MI->getAllocatedType(), ArraySize);
// Replace all uses of the old malloc inst with the cast inst
MI->replaceAllUsesWith(MCast);