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| author | Chris Lattner <sabre@nondot.org> | 2008-01-16 05:53:06 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-01-16 05:53:06 +0000 |
| commit | ea001f1db7c78d469a0e6adec539d7e1b0638e65 (patch) | |
| tree | 78d8740e48b24a691cf474a56f74ceb2d106a237 /llvm/lib | |
| parent | de5c74f18e249f918ca8e428c8bf287d9fb9162c (diff) | |
| download | bcm5719-llvm-ea001f1db7c78d469a0e6adec539d7e1b0638e65.tar.gz bcm5719-llvm-ea001f1db7c78d469a0e6adec539d7e1b0638e65.zip | |
make the 'fp return in ST(0)' optimization smart enough to
look through token factor
llvm-svn: 46053
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index be826533e15..eb8e5e38320 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -767,7 +767,7 @@ SDOperand X86TargetLowering::LowerRET(SDOperand Op, SelectionDAG &DAG) { // If this is a load into a scalarsse value, don't store the loaded value // back to the stack, only to reload it: just replace the scalar-sse load. if (ISD::isNON_EXTLoad(Value.Val) && - (Chain == Value.getValue(1) || Chain == Value.getOperand(0))) { + Chain.reachesChainWithoutSideEffects(Value.getOperand(0))) { Chain = Value.getOperand(0); MemLoc = Value.getOperand(1); } else { |
