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Do not force asm's to be chained if they don't touch

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memory and aren't volatile.  This was interfering with
good scheduling.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69008 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2009-04-14 00:56:56 +00:00
parent 87d696a4d2
commit ec65a7d89b
1 changed files with 3 additions and 0 deletions
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3
lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
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@ -5439,6 +5439,9 @@ void SelectionDAGLowering::visitInlineAsm(CallSite CS) {
} }
setValue(CS.getInstruction(), Val); setValue(CS.getInstruction(), Val);
// Don't need to use this as a chain in this case.
if (!IA->hasSideEffects() && !hasMemory && IndirectStoresToEmit.empty())
return;
} }
std::vector<std::pair<SDValue, Value*> > StoresToEmit; std::vector<std::pair<SDValue, Value*> > StoresToEmit;