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Fix the casting for the computation of the Malloc size. 

llvm-svn: 32477
This commit is contained in:
Reid Spencer 2006-12-12 09:17:08 +00:00
parent 0c0b78c18e
commit 41cb269a2b
1 changed files with 3 additions and 3 deletions
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6
llvm/lib/Transforms/Utils/LowerAllocations.cpp
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@ -122,15 +122,15 @@ bool LowerAllocations::runOnBasicBlock(BasicBlock &BB) {
MallocArg = ConstantInt::get(Type::ULongTy, TD.getTypeSize(AllocTy)); MallocArg = ConstantInt::get(Type::ULongTy, TD.getTypeSize(AllocTy));
else else
MallocArg = ConstantExpr::getSizeOf(AllocTy); MallocArg = ConstantExpr::getSizeOf(AllocTy);
MallocArg = ConstantExpr::getIntegerCast(cast<Constant>(MallocArg), MallocArg = ConstantExpr::getTruncOrBitCast(cast<Constant>(MallocArg),
IntPtrTy, true /*SExt*/); IntPtrTy);
if (MI->isArrayAllocation()) { if (MI->isArrayAllocation()) {
if (isa<ConstantInt>(MallocArg) && if (isa<ConstantInt>(MallocArg) &&
cast<ConstantInt>(MallocArg)->getZExtValue() == 1) { cast<ConstantInt>(MallocArg)->getZExtValue() == 1) {
MallocArg = MI->getOperand(0); // Operand * 1 = Operand MallocArg = MI->getOperand(0); // Operand * 1 = Operand
} else if (Constant *CO = dyn_cast<Constant>(MI->getOperand(0))) { } else if (Constant *CO = dyn_cast<Constant>(MI->getOperand(0))) {
CO = ConstantExpr::getIntegerCast(CO, IntPtrTy, true /*SExt*/); CO = ConstantExpr::getIntegerCast(CO, IntPtrTy, false /*ZExt*/);
MallocArg = ConstantExpr::getMul(CO, cast<Constant>(MallocArg)); MallocArg = ConstantExpr::getMul(CO, cast<Constant>(MallocArg));
} else { } else {
Value *Scale = MI->getOperand(0); Value *Scale = MI->getOperand(0);