diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2012-08-15 20:02:54 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2012-08-15 20:02:54 +0000 |
| commit | 56d91b49b13fe55c918afbda19f6165b5fbff87a (patch) | |
| tree | 9abb1a658a297776086f4e0dfa6ca533de02104e /test/CodeGen/atomic_ops.c | |
| parent | 41e20f564abdb05101d6b2b29c59459a966c22cc (diff) | |
Notes
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 9a18c9e94492..481d1e06fbd5 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 |