diff options
Diffstat (limited to 'test/CodeGen/atomic_ops.c')
| -rw-r--r-- | test/CodeGen/atomic_ops.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/test/CodeGen/atomic_ops.c b/test/CodeGen/atomic_ops.c index 9a18c9e..481d1e0 100644 --- a/test/CodeGen/atomic_ops.c +++ b/test/CodeGen/atomic_ops.c @@ -1,11 +1,20 @@ // RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s -void foo(void) +void foo(int x) { _Atomic(int) i = 0; + _Atomic(short) j = 0; // Check that multiply / divides on atomics produce a cmpxchg loop - i *= 2; // CHECK: cmpxchg - i /= 2; // CHECK: cmpxchg + i *= 2; + // CHECK: mul nsw i32 + // CHECK: cmpxchg i32* + i /= 2; + // CHECK: sdiv i32 + // CHECK: cmpxchg i32* + j /= x; + // CHECK: sdiv i32 + // CHECK: cmpxchg i16* + // These should be emitting atomicrmw instructions, but they aren't yet i += 2; // CHECK: cmpxchg i -= 2; // CHECK: cmpxchg |
