[llvm] r290089 - [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.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Mon Dec 19 02:35:56 2016
New Revision: 290089

URL: http://llvm.org/viewvc/llvm-project?rev=290089&view=rev
Log:
[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.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp?rev=290089&r1=290088&r2=290089&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp Mon Dec 19 02:35:56 2016
@@ -1518,7 +1518,7 @@ bool X86DAGToDAGISel::selectScalarSSELoa
   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 @@ bool X86DAGToDAGISel::selectScalarSSELoa
   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);