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));
__nvvm_atom_min_gen_ull((unsigned long long *)&sll, ll);
// CHECK: cmpxchg
+ // CHECK-NEXT: extractvalue { i32, i1 } {{%[0-9]+}}, 0
__nvvm_atom_cas_gen_i(ip, 0, i);
// CHECK: cmpxchg
+ // CHECK-NEXT: extractvalue { {{i32|i64}}, i1 } {{%[0-9]+}}, 0
__nvvm_atom_cas_gen_l(&dl, 0, l);
// CHECK: cmpxchg
+ // CHECK-NEXT: extractvalue { i64, i1 } {{%[0-9]+}}, 0
__nvvm_atom_cas_gen_ll(&sll, 0, ll);
// CHECK: call float @llvm.nvvm.atomic.load.add.f32.p0f32