commit 1fd41963375f1af42b3df896f5df9010fe08fa9f
author Craig Topper <craig.topper@gmail.com> Mon Dec 19 08:35:56 2016 +0000
committer Craig Topper <craig.topper@gmail.com> Mon Dec 19 08:35:56 2016 +0000
tree 5c21f8ff6a0119875c903e6e63217c3bcd58fa06
parent 04bd11ec4df856ebde36ce1dd68a0a506d2adfbe

[X86] When recognizing vector loads or VZEXT_LOAD in selectScalarSSELoad make sure we pass the load's user rather than load itself to the second operand of IsLegalToFold.

llvm-svn: 290089

llvm/lib/Target/X86/X86ISelDAGToDAG.cpp

diff --git a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
index 5913f0f..8b66790 100644
--- a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -1518,7 +1518,7 @@
   if (ISD::isNON_EXTLoad(N.getNode())) {
     PatternNodeWithChain = N;
     if (IsProfitableToFold(PatternNodeWithChain, N.getNode(), Root) &&
-        IsLegalToFold(PatternNodeWithChain, N.getNode(), Root, OptLevel)) {
+        IsLegalToFold(PatternNodeWithChain, *N->use_begin(), Root, OptLevel)) {
       LoadSDNode *LD = cast<LoadSDNode>(PatternNodeWithChain);
       return selectAddr(LD, LD->getBasePtr(), Base, Scale, Index, Disp,
                         Segment);
@@ -1529,7 +1529,7 @@
   if (N.getOpcode() == X86ISD::VZEXT_LOAD) {
     PatternNodeWithChain = N;
     if (IsProfitableToFold(PatternNodeWithChain, N.getNode(), Root) &&
-        IsLegalToFold(PatternNodeWithChain, N.getNode(), Root, OptLevel)) {
+        IsLegalToFold(PatternNodeWithChain, *N->use_begin(), Root, OptLevel)) {
       auto *MI = cast<MemIntrinsicSDNode>(PatternNodeWithChain);
       return selectAddr(MI, MI->getBasePtr(), Base, Scale, Index, Disp,
                         Segment);