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
