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Diffstat (limited to 'lib/CodeGen/MachineSink.cpp')
| -rw-r--r-- | lib/CodeGen/MachineSink.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineSink.cpp b/lib/CodeGen/MachineSink.cpp index 5f03390f146c..aed0e500d441 100644 --- a/lib/CodeGen/MachineSink.cpp +++ b/lib/CodeGen/MachineSink.cpp @@ -655,6 +655,10 @@ bool MachineSinking::SinkInstruction(MachineInstr *MI, bool &SawStore) { if (!MI->isSafeToMove(AA, SawStore)) return false; + // Convergent operations may only be moved to control equivalent locations. + if (MI->isConvergent()) + return false; + // FIXME: This should include support for sinking instructions within the // block they are currently in to shorten the live ranges. We often get // instructions sunk into the top of a large block, but it would be better to |