diff options
Diffstat (limited to 'llvm/lib/Target/Sparc')
| -rw-r--r-- | llvm/lib/Target/Sparc/SparcISelLowering.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp index d9f00095589..32d88f9be74 100644 --- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp +++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp @@ -1611,6 +1611,13 @@ SparcTargetLowering::SparcTargetLowering(TargetMachine &TM, } // ATOMICs. + // Atomics are only supported on Sparcv9. (32bit atomics are also + // supported by the Leon sparcv8 variant, but we don't support that + // yet.) + if (Subtarget->isV9()) + setMaxAtomicSizeInBitsSupported(64); + else + setMaxAtomicSizeInBitsSupported(0); setOperationAction(ISD::ATOMIC_SWAP, MVT::i32, Legal); setOperationAction(ISD::ATOMIC_CMP_SWAP, MVT::i32, |
