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Avoid replacing the value of a directly stored load with the stored value if the load is indexed. rdar://9117613.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127440 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2011-03-11 00:48:56 +00:00
parent d4a16ad85d
commit 9ef82ce4fe
2 changed files with 48 additions and 2 deletions
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3
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@@ -5862,8 +5862,7 @@ SDValue DAGCombiner::visitLOAD(SDNode *N) {
// value.
// TODO: Handle store large -> read small portion.
// TODO: Handle TRUNCSTORE/LOADEXT
if (LD->getExtensionType() == ISD::NON_EXTLOAD &&
!LD->isVolatile()) {
if (ISD::isNormalLoad(N) && !LD->isVolatile()) {
if (ISD::isNON_TRUNCStore(Chain.getNode())) {
StoreSDNode *PrevST = cast<StoreSDNode>(Chain);
if (PrevST->getBasePtr() == Ptr &&