diff options
Diffstat (limited to 'llvm/lib/Target/ARM/ARMTargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMTargetMachine.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp index d85194b75ec..fc164ada35f 100644 --- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp +++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp @@ -158,7 +158,10 @@ TargetPassConfig *ARMBaseTargetMachine::createPassConfig(PassManagerBase &PM) { } void ARMPassConfig::addIRPasses() { - addPass(createAtomicExpandLoadLinkedPass(TM)); + if (TM->Options.ThreadModel == ThreadModel::Single) + addPass(createLowerAtomicPass()); + else + addPass(createAtomicExpandLoadLinkedPass(TM)); // Cmpxchg instructions are often used with a subsequent comparison to // determine whether it succeeded. We can exploit existing control-flow in |
