blob: 5541436ead821cb185cfa749d24c5697a884f745 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
// RUN: %clangxx_msan -O0 %s -o %t && %run %t
// RUN: %clangxx_msan -DPOSITIVE -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
// REQUIRES: x86_64-target-arch
#include <emmintrin.h>
int to_int(double v) {
__m128d t = _mm_set_sd(v);
int x = _mm_cvtsd_si32(t);
return x;
// CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
// CHECK: #{{.*}} in to_int{{.*}}vector_cvt.cc:[[@LINE-3]]
}
int main() {
#ifdef POSITIVE
double v;
#else
double v = 1.1;
#endif
double* volatile p = &v;
int x = to_int(*p);
return !x;
}
|
