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| author | Quentin Colombet <qcolombet@apple.com> | 2016-08-26 22:32:55 +0000 |
|---|---|---|
| committer | Quentin Colombet <qcolombet@apple.com> | 2016-08-26 22:32:55 +0000 |
| commit | e063e1f68a43354795a626b6546c50ade038437e (patch) | |
| tree | 3a41fdab02c38699e2c9dec1c788b1464249f3d2 | |
| parent | 380cd3eb23ecc107d569e378ee5a69f26f4000ba (diff) | |
| download | llvm-e063e1f68a43354795a626b6546c50ade038437e.zip llvm-e063e1f68a43354795a626b6546c50ade038437e.tar.gz llvm-e063e1f68a43354795a626b6546c50ade038437e.tar.bz2 | |
[SelectionDAG] Do not run the ISel process on already selected code.
Right now, this cannot happen, but with the fall back path of GlobalISel
it will show up eventually.
llvm-svn: 279877
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index e886d67..b9c4eb3 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -426,6 +426,10 @@ static void SplitCriticalSideEffectEdges(Function &Fn) { } bool SelectionDAGISel::runOnMachineFunction(MachineFunction &mf) { + // If we already selected that function, we do not need to run SDISel. + if (mf.getProperties().hasProperty( + MachineFunctionProperties::Property::Selected)) + return false; // Do some sanity-checking on the command-line options. assert((!EnableFastISelVerbose || TM.Options.EnableFastISel) && "-fast-isel-verbose requires -fast-isel"); |