diff options
Diffstat (limited to 'clang/lib/CodeGen/CGAtomic.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGAtomic.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/clang/lib/CodeGen/CGAtomic.cpp b/clang/lib/CodeGen/CGAtomic.cpp index eaf29dfff29..5b63b3ffca9 100644 --- a/clang/lib/CodeGen/CGAtomic.cpp +++ b/clang/lib/CodeGen/CGAtomic.cpp @@ -765,11 +765,15 @@ RValue CodeGenFunction::EmitAtomicExpr(AtomicExpr *E) { std::tie(sizeChars, alignChars) = getContext().getTypeInfoInChars(AtomicTy); uint64_t Size = sizeChars.getQuantity(); unsigned MaxInlineWidthInBits = getTarget().getMaxAtomicInlineWidth(); - bool UseLibcall = ((Ptr.getAlignment() % sizeChars) != 0 || - getContext().toBits(sizeChars) > MaxInlineWidthInBits); - if (UseLibcall) - CGM.getDiags().Report(E->getBeginLoc(), diag::warn_atomic_op_misaligned); + bool Oversized = getContext().toBits(sizeChars) > MaxInlineWidthInBits; + bool Misaligned = (Ptr.getAlignment() % sizeChars) != 0; + bool UseLibcall = Misaligned | Oversized; + + if (UseLibcall) { + CGM.getDiags().Report(E->getBeginLoc(), diag::warn_atomic_op_misaligned) + << !Oversized; + } llvm::Value *Order = EmitScalarExpr(E->getOrder()); llvm::Value *Scope = |
