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reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an

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arbitrary integer width for the count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59823 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2008-11-21 16:42:48 +00:00
parent dc770929cb
commit 824b958e6f
12 changed files with 70 additions and 80 deletions
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11
lib/Transforms/Scalar/MemCpyOptimizer.cpp
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@ -427,9 +427,12 @@ bool MemCpyOpt::processStore(StoreInst *SI, BasicBlock::iterator& BBI) {
// instruction needed by the start of the block.
BasicBlock::iterator InsertPt = BI;
if (MemSetF == 0)
if (MemSetF == 0) {
const Type *Tys[] = {Type::Int64Ty};
MemSetF = Intrinsic::getDeclaration(SI->getParent()->getParent()
->getParent(), Intrinsic::memset_i64);
->getParent(), Intrinsic::memset,
Tys, 1);
}
// Get the starting pointer of the block.
StartPtr = Range.StartPtr;
@ -671,9 +674,11 @@ bool MemCpyOpt::processMemCpy(MemCpyInst* M) {
return false;
// If all checks passed, then we can transform these memcpy's
const Type *Tys[1];
Tys[0] = M->getLength()->getType();
Function* MemCpyFun = Intrinsic::getDeclaration(
M->getParent()->getParent()->getParent(),
M->getIntrinsicID());
M->getIntrinsicID(), Tys, 1);
std::vector<Value*> args;
args.push_back(M->getRawDest());