diff options
Diffstat (limited to 'clang/test/Sema/uninit-variables-vectors.c')
| -rw-r--r-- | clang/test/Sema/uninit-variables-vectors.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/clang/test/Sema/uninit-variables-vectors.c b/clang/test/Sema/uninit-variables-vectors.c new file mode 100644 index 0000000..10a8ecc --- /dev/null +++ b/clang/test/Sema/uninit-variables-vectors.c @@ -0,0 +1,17 @@ +// RUN: %clang_cc1 -triple x86_64-apple-darwin10.0.0 -fsyntax-only -Wuninitialized -fsyntax-only %s -verify + +typedef int __v4si __attribute__((__vector_size__(16))); +typedef float __m128 __attribute__((__vector_size__(16))); +__m128 _mm_xor_ps(__m128 a, __m128 b); +__m128 _mm_loadu_ps(const float *p); + +void test1(float *input) { + __m128 x, y, z, w, X; // expected-note {{variable 'x' is declared here}} expected-note {{variable 'y' is declared here}} expected-note {{variable 'w' is declared here}} expected-note {{variable 'z' is declared here}} + x = _mm_xor_ps(x,x); // expected-warning {{variable 'x' is uninitialized when used here}} + y = _mm_xor_ps(y,y); // expected-warning {{variable 'y' is uninitialized when used here}} + z = _mm_xor_ps(z,z); // expected-warning {{variable 'z' is uninitialized when used here}} + w = _mm_xor_ps(w,w); // expected-warning {{variable 'w' is uninitialized when used here}} + X = _mm_loadu_ps(&input[0]); + X = _mm_xor_ps(X,X); // no-warning +} + |