diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/Utils.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/Utils.cpp b/llvm/lib/CodeGen/GlobalISel/Utils.cpp index 1a5f88743d5..4d3a3753559 100644 --- a/llvm/lib/CodeGen/GlobalISel/Utils.cpp +++ b/llvm/lib/CodeGen/GlobalISel/Utils.cpp @@ -137,7 +137,7 @@ bool llvm::isTriviallyDead(const MachineInstr &MI, // If we can move an instruction, we can remove it. Otherwise, it has // a side-effect of some sort. bool SawStore = false; - if (!MI.isSafeToMove(/*AA=*/nullptr, SawStore)) + if (!MI.isSafeToMove(/*AA=*/nullptr, SawStore) && !MI.isPHI()) return false; // Instructions without side-effects are dead iff they only define dead vregs. |
