Changes in directory llvm/lib/Target/X86:
X86ISelDAGToDAG.cpp updated: 1.119 -> 1.120
---
Log message:
SelectScalarSSELoad should call CanBeFoldedBy as well.
---
Diffs of the changes: (+7 -3)
X86ISelDAGToDAG.cpp | 10 +++++++---
1 files changed, 7 insertions(+), 3 deletions(-)
Index: llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
diff -u llvm/lib/Target/X86/X86ISelDAGToDAG.cpp:1.119
llvm/lib/Target/X86/X86ISelDAGToDAG.cpp:1.120
--- llvm/lib/Target/X86/X86ISelDAGToDAG.cpp:1.119 Sat Oct 14 03:33:25 2006
+++ llvm/lib/Target/X86/X86ISelDAGToDAG.cpp Mon Oct 16 01:34:55 2006
@@ -147,7 +147,8 @@
SDOperand &Index, SDOperand &Disp);
bool SelectLEAAddr(SDOperand N, SDOperand &Base, SDOperand &Scale,
SDOperand &Index, SDOperand &Disp);
- bool SelectScalarSSELoad(SDOperand N, SDOperand &Base, SDOperand &Scale,
+ bool SelectScalarSSELoad(SDOperand Root, SDOperand Pred,
+ SDOperand N, SDOperand &Base, SDOperand &Scale,
SDOperand &Index, SDOperand &Disp,
SDOperand &InChain, SDOperand &OutChain);
bool TryFoldLoad(SDOperand P, SDOperand N,
@@ -804,13 +805,16 @@
/// SelectScalarSSELoad - Match a scalar SSE load. In particular, we want to
/// match a load whose top elements are either undef or zeros. The load flavor
/// is derived from the type of N, which is either v4f32 or v2f64.
-bool X86DAGToDAGISel::SelectScalarSSELoad(SDOperand N, SDOperand &Base,
+bool X86DAGToDAGISel::SelectScalarSSELoad(SDOperand Root, SDOperand Pred,
+ SDOperand N, SDOperand &Base,
SDOperand &Scale, SDOperand &Index,
SDOperand &Disp, SDOperand &InChain,
SDOperand &OutChain) {
if (N.getOpcode() == ISD::SCALAR_TO_VECTOR) {
InChain = N.getOperand(0).getValue(1);
- if (ISD::isNON_EXTLoad(InChain.Val) && InChain.getValue(0).hasOneUse()) {
+ if (ISD::isNON_EXTLoad(InChain.Val) &&
+ InChain.getValue(0).hasOneUse() &&
+ CanBeFoldedBy(N.Val, Pred.Val, Root.Val)) {
LoadSDNode *LD = cast<LoadSDNode>(InChain);
if (!SelectAddr(LD->getBasePtr(), Base, Scale, Index, Disp))
return false;
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