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| author | Dale Johannesen <dalej@apple.com> | 2009-04-14 00:56:56 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2009-04-14 00:56:56 +0000 |
| commit | ec65a7d89b3c23183433c69f43220a93f3573551 (patch) | |
| tree | d8e84b1ffecf1cb0ae78964b695db630f100df46 /lib/CodeGen/SelectionDAG | |
| parent | 87d696a4d2f0b43a0e927bffb13ceb4c67cc0f3b (diff) | |
| download | external_llvm-ec65a7d89b3c23183433c69f43220a93f3573551.zip external_llvm-ec65a7d89b3c23183433c69f43220a93f3573551.tar.gz external_llvm-ec65a7d89b3c23183433c69f43220a93f3573551.tar.bz2 | |
Do not force asm's to be chained if they don't touch
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
Diffstat (limited to 'lib/CodeGen/SelectionDAG')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp index 0fc5cb1..96fae4d 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp @@ -5439,6 +5439,9 @@ void SelectionDAGLowering::visitInlineAsm(CallSite CS) { } 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; |