diff options
Diffstat (limited to 'lib/CodeGen/MachineInstr.cpp')
| -rw-r--r-- | lib/CodeGen/MachineInstr.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp index 0b1afa3f09..ce5c5235b8 100644 --- a/lib/CodeGen/MachineInstr.cpp +++ b/lib/CodeGen/MachineInstr.cpp @@ -715,7 +715,9 @@ bool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, bool &SawStore) { /// instruction which defined the specified register instead of copying it. bool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, unsigned DstReg) { bool SawStore = false; - if (!isSafeToMove(TII, SawStore)) + if (!getDesc().isRematerializable() || + !TII->isTriviallyReMaterializable(this) || + !isSafeToMove(TII, SawStore)) return false; for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { MachineOperand &MO = getOperand(i); |