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Add support for vectors of pointers.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145801 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2011-12-05 06:29:09 +00:00
parent 8e1b12ae68
commit 1608769abe
26 changed files with 631 additions and 71 deletions
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9
lib/Transforms/InstCombine/InstructionCombining.cpp
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@@ -831,7 +831,8 @@ Instruction *InstCombiner::visitGetElementPtrInst(GetElementPtrInst &GEP) {
MadeChange = true;
}
if ((*I)->getType() != IntPtrTy) {
Type *IndexTy = (*I)->getType();
if (IndexTy != IntPtrTy && !IndexTy->isVectorTy()) {
// If we are using a wider index than needed for this platform, shrink
// it to what we need. If narrower, sign-extend it to what we need.
// This explicit cast can make subsequent optimizations more obvious.
@@ -914,7 +915,11 @@ Instruction *InstCombiner::visitGetElementPtrInst(GetElementPtrInst &GEP) {
// Handle gep(bitcast x) and gep(gep x, 0, 0, 0).
Value *StrippedPtr = PtrOp->stripPointerCasts();
PointerType *StrippedPtrTy =cast<PointerType>(StrippedPtr->getType());
PointerType *StrippedPtrTy = dyn_cast<PointerType>(StrippedPtr->getType());
// We do not handle pointer-vector geps here
if (!StrippedPtr)
return 0;
if (StrippedPtr != PtrOp &&
StrippedPtrTy->getAddressSpace() == GEP.getPointerAddressSpace()) {