diff options
-rw-r--r-- | lib/CodeGen/MachineLICM.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp index 32b7e00..b996d91 100644 --- a/lib/CodeGen/MachineLICM.cpp +++ b/lib/CodeGen/MachineLICM.cpp @@ -636,6 +636,10 @@ bool MachineLICM::IsProfitableToHoist(MachineInstr &MI) { } MachineInstr *MachineLICM::ExtractHoistableLoad(MachineInstr *MI) { + // Don't unfold simple loads. + if (MI->getDesc().canFoldAsLoad()) + return 0; + // 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. |