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add getPointerAddressSpace() to GEP instruction, use the method

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in a few scalar xforms to simplify things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80506 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-08-30 20:06:40 +00:00
parent 2345d1d22e
commit 8a67ac525e
4 changed files with 10 additions and 9 deletions
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3
lib/Transforms/Scalar/SCCP.cpp
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@@ -1131,8 +1131,7 @@ void SCCPSolver::visitLoadInst(LoadInst &I) {
if (PtrVal.isConstant() && !I.isVolatile()) {
Value *Ptr = PtrVal.getConstant();
// TODO: Consider a target hook for valid address spaces for this xform.
if (isa<ConstantPointerNull>(Ptr) &&
cast<PointerType>(Ptr->getType())->getAddressSpace() == 0) {
if (isa<ConstantPointerNull>(Ptr) && I.getPointerAddressSpace() == 0) {
// load null -> null
markConstant(IV, &I, Constant::getNullValue(I.getType()));
return;