diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineLICM.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineLICM.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/MachineLICM.cpp b/llvm/lib/CodeGen/MachineLICM.cpp index 1f4acd01305..8d59ad061eb 100644 --- a/llvm/lib/CodeGen/MachineLICM.cpp +++ b/llvm/lib/CodeGen/MachineLICM.cpp @@ -1138,7 +1138,8 @@ bool MachineLICM::IsProfitableToHoist(MachineInstr &MI) { // High register pressure situation, only hoist if the instruction is going // to be remat'ed. - if (!TII->isTriviallyReMaterializable(MI, AA) && !MI.isInvariantLoad(AA)) { + if (!TII->isTriviallyReMaterializable(MI, AA) && + !MI.isDereferenceableInvariantLoad(AA)) { DEBUG(dbgs() << "Can't remat / high reg-pressure: " << MI); return false; } @@ -1157,7 +1158,7 @@ MachineInstr *MachineLICM::ExtractHoistableLoad(MachineInstr *MI) { // If not, we may be able to unfold a load and hoist that. // First test whether the instruction is loading from an amenable // memory location. - if (!MI->isInvariantLoad(AA)) + if (!MI->isDereferenceableInvariantLoad(AA)) return nullptr; // Next determine the register class for a temporary register. |
