diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2006-10-16 06:34:55 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-10-16 06:34:55 +0000 |
| commit | 07e4b00a1a2d28985307c0e04e7508879b4ca270 (patch) | |
| tree | a894e952fa54fe9ec9b349481507a4d06d78ce5d /lib/Target | |
| parent | 13e9e9c235a1cfce470f5ed5415c494403b5aa52 (diff) | |
SelectScalarSSELoad should call CanBeFoldedBy as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30973 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/X86/X86ISelDAGToDAG.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp index 3721fad5c3..550e52c856 100644 --- a/lib/Target/X86/X86ISelDAGToDAG.cpp +++ b/lib/Target/X86/X86ISelDAGToDAG.cpp @@ -147,7 +147,8 @@ namespace { 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 @@ static inline bool isZeroNode(SDOperand Elt) { /// 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; |