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[opaque pointer type] Track explicit GEP pointee type through in-memory IR

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236510 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2015-05-05 18:03:48 +00:00
parent 4def1cbf5d
commit a67d5abd53
4 changed files with 34 additions and 16 deletions
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lib/Transforms/InstCombine/InstructionCombining.cpp
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@@ -1602,6 +1602,7 @@ Instruction *InstCombiner::visitGetElementPtrInst(GetElementPtrInst &GEP) {
// is a leading zero) we can fold the cast into this GEP.
if (StrippedPtrTy->getAddressSpace() == GEP.getAddressSpace()) {
GEP.setOperand(0, StrippedPtr);
GEP.setSourceElementType(XATy);
return &GEP;
}
// Cannot replace the base pointer directly because StrippedPtr's