diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/AtomicExpandPass.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/AtomicExpandPass.cpp b/llvm/lib/CodeGen/AtomicExpandPass.cpp index bb8b3100ae9..7aca67a327b 100644 --- a/llvm/lib/CodeGen/AtomicExpandPass.cpp +++ b/llvm/lib/CodeGen/AtomicExpandPass.cpp @@ -585,6 +585,10 @@ bool AtomicExpand::tryExpandAtomicRMW(AtomicRMWInst *AI) { unsigned MinCASSize = TLI->getMinCmpXchgSizeInBits() / 8; unsigned ValueSize = getAtomicOpSize(AI); if (ValueSize < MinCASSize) { + // TODO: Handle atomicrmw fadd/fsub + if (AI->getType()->isFloatingPointTy()) + return false; + expandPartwordAtomicRMW(AI, TargetLoweringBase::AtomicExpansionKind::CmpXChg); } else { |
