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Diffstat (limited to 'llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp')
-rw-r--r--llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
index a51cbda4f1d..17a82e4c800 100644
--- a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -452,8 +452,10 @@ unsigned ARMDAGToDAGISel::ConstantMaterializationCost(unsigned Val) const {
if (Subtarget->isThumb()) {
if (Val <= 255) return 1; // MOV
if (Subtarget->hasV6T2Ops() &&
- (Val <= 0xffff || ARM_AM::getT2SOImmValSplatVal(Val) != -1))
- return 1; // MOVW
+ (Val <= 0xffff || // MOV
+ ARM_AM::getT2SOImmVal(Val) != -1 || // MOVW
+ ARM_AM::getT2SOImmVal(~Val) != -1)) // MVN
+ return 1;
if (Val <= 510) return 2; // MOV + ADDi8
if (~Val <= 255) return 2; // MOV + MVN
if (ARM_AM::isThumbImmShiftedVal(Val)) return 2; // MOV + LSL
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