diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2015-06-09 19:06:30 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2015-06-09 19:06:30 +0000 |
| commit | 85d8b2bbe386bcfe669575d05b61482d7be07e5d (patch) | |
| tree | 1dc5e75ab222a9ead44c699eceafab7a6ca7b310 /lib/CodeGen/MachineSink.cpp | |
| parent | 5a5ac124e1efaf208671f01c46edb15f29ed2a0b (diff) | |
Notes
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 |