| // RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s | |
| void foo(void) | |
| { | |
| _Atomic(int) i = 0; | |
| // Check that multiply / divides on atomics produce a cmpxchg loop | |
| i *= 2; // CHECK: cmpxchg | |
| i /= 2; // CHECK: cmpxchg | |
| // These should be emitting atomicrmw instructions, but they aren't yet | |
| i += 2; // CHECK: cmpxchg | |
| i -= 2; // CHECK: cmpxchg | |
| i++; // CHECK: cmpxchg | |
| i--; // CHECK: cmpxchg | |
| } |