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| author | dim <dim@FreeBSD.org> | 2012-08-15 20:02:54 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2012-08-15 20:02:54 +0000 |
| commit | 554bcb69c2d785a011a30e7db87a36a87fe7db10 (patch) | |
| tree | 9abb1a658a297776086f4e0dfa6ca533de02104e /test/CodeGen/atomic_ops.c | |
| parent | bb67ca86b31f67faee50bd10c3b036d65751745a (diff) | |
| download | FreeBSD-src-554bcb69c2d785a011a30e7db87a36a87fe7db10.zip FreeBSD-src-554bcb69c2d785a011a30e7db87a36a87fe7db10.tar.gz | |
Vendor import of clang trunk r161861:
http://llvm.org/svn/llvm-project/cfe/trunk@161861
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 |
