18 lines · c
1// RUN: %clang_cc1 -triple x86_64-apple-darwin10.0.0 -Wuninitialized -fsyntax-only %s -verify2 3typedef int __v4si __attribute__((__vector_size__(16)));4typedef float __m128 __attribute__((__vector_size__(16)));5__m128 _mm_xor_ps(__m128 a, __m128 b);6__m128 _mm_loadu_ps(const float *p);7 8void test1(float *input) {9 __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}}10 x = _mm_xor_ps(x,x); // expected-warning {{variable 'x' is uninitialized when used here}}11 y = _mm_xor_ps(y,y); // expected-warning {{variable 'y' is uninitialized when used here}}12 z = _mm_xor_ps(z,z); // expected-warning {{variable 'z' is uninitialized when used here}}13 w = _mm_xor_ps(w,w); // expected-warning {{variable 'w' is uninitialized when used here}}14 X = _mm_loadu_ps(&input[0]);15 X = _mm_xor_ps(X,X); // no-warning16}17 18