1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -target-cpu core2 %s -S -emit-llvm -o - | FileCheck %s
2
3 // All atomics up to 16 bytes should be emitted inline on x86_64. The
4 // backend can reform __sync_whatever calls if necessary (e.g. the CPU
5 // doesn't have cmpxchg16b).
6
test_sync_call(__int128 * addr,__int128 val)7 __int128 test_sync_call(__int128 *addr, __int128 val) {
8 // CHECK-LABEL: @test_sync_call
9 // CHECK: atomicrmw add i128
10 return __sync_fetch_and_add(addr, val);
11 }
12
test_c11_call(_Atomic __int128 * addr,__int128 val)13 __int128 test_c11_call(_Atomic __int128 *addr, __int128 val) {
14 // CHECK-LABEL: @test_c11_call
15 // CHECK: atomicrmw sub
16 return __c11_atomic_fetch_sub(addr, val, 0);
17 }
18
test_atomic_call(__int128 * addr,__int128 val)19 __int128 test_atomic_call(__int128 *addr, __int128 val) {
20 // CHECK-LABEL: @test_atomic_call
21 // CHECK: atomicrmw or
22 return __atomic_fetch_or(addr, val, 0);
23 }
24
test_expression(_Atomic __int128 * addr)25 __int128 test_expression(_Atomic __int128 *addr) {
26 // CHECK-LABEL: @test_expression
27 // CHECK: atomicrmw and
28 *addr &= 1;
29 }
30