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 | |
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 | |
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 | |
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 | |
25 | __int128 test_expression(_Atomic __int128 *addr) { |
26 | // CHECK-LABEL: @test_expression |
27 | // CHECK: atomicrmw and |
28 | *addr &= 1; |
29 | } |
30 | |