diff options
Diffstat (limited to 'lib/Target/AMDGPU/SIFoldOperands.cpp')
| -rw-r--r-- | lib/Target/AMDGPU/SIFoldOperands.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/Target/AMDGPU/SIFoldOperands.cpp b/lib/Target/AMDGPU/SIFoldOperands.cpp index d63414735b95..f13629a3185f 100644 --- a/lib/Target/AMDGPU/SIFoldOperands.cpp +++ b/lib/Target/AMDGPU/SIFoldOperands.cpp @@ -247,9 +247,10 @@ static bool tryAddToFoldList(SmallVectorImpl<FoldCandidate> &FoldList, // If the use operand doesn't care about the value, this may be an operand only // used for register indexing, in which case it is unsafe to fold. -static bool isUseSafeToFold(const MachineInstr &MI, +static bool isUseSafeToFold(const SIInstrInfo *TII, + const MachineInstr &MI, const MachineOperand &UseMO) { - return !UseMO.isUndef(); + return !UseMO.isUndef() && !TII->isSDWA(MI); //return !MI.hasRegisterImplicitUseOperand(UseMO.getReg()); } @@ -261,7 +262,7 @@ void SIFoldOperands::foldOperand( SmallVectorImpl<MachineInstr *> &CopiesToReplace) const { const MachineOperand &UseOp = UseMI->getOperand(UseOpIdx); - if (!isUseSafeToFold(*UseMI, UseOp)) + if (!isUseSafeToFold(TII, *UseMI, UseOp)) return; // FIXME: Fold operands with subregs. |