diff options
Diffstat (limited to 'clang/lib/CodeGen/CGBuiltin.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index f5e3aca103a..27dd5b5728d 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -7021,7 +7021,9 @@ Value *CodeGenFunction::EmitNVPTXBuiltinExpr(unsigned BuiltinID, case NVPTX::BI__nvvm_atom_cas_gen_i: case NVPTX::BI__nvvm_atom_cas_gen_l: case NVPTX::BI__nvvm_atom_cas_gen_ll: - return MakeAtomicCmpXchgValue(*this, E, true); + // __nvvm_atom_cas_gen_* should return the old value rather than the + // success flag. + return MakeAtomicCmpXchgValue(*this, E, /*ReturnBool=*/false); case NVPTX::BI__nvvm_atom_add_gen_f: { Value *Ptr = EmitScalarExpr(E->getArg(0)); |
