31 lines · c
1// RUN: %clang_cc1 -triple x86_64-linux-gnu -target-cpu core2 %s -emit-llvm -o - | FileCheck %s2 3// All atomics up to 16 bytes should be emitted inline on x86_64. The4// backend can reform __sync_whatever calls if necessary (e.g. the CPU5// doesn't have cmpxchg16b).6 7__int128 test_sync_call(__int128 *addr, __int128 val) {8 // CHECK-LABEL: @test_sync_call9 // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 1610 return __sync_fetch_and_add(addr, val);11}12 13__int128 test_c11_call(_Atomic __int128 *addr, __int128 val) {14 // CHECK-LABEL: @test_c11_call15 // CHECK: atomicrmw sub ptr {{.*}} monotonic, align 1616 return __c11_atomic_fetch_sub(addr, val, 0);17}18 19__int128 test_atomic_call(__int128 *addr, __int128 val) {20 // CHECK-LABEL: @test_atomic_call21 // CHECK: atomicrmw or ptr {{.*}} monotonic, align 1622 return __atomic_fetch_or(addr, val, 0);23}24 25__int128 test_expression(_Atomic __int128 *addr) {26 // CHECK-LABEL: @test_expression27 // CHECK: atomicrmw and ptr {{.*}} seq_cst, align 1628 *addr &= 1;29 return 0;30}31