| Pirama Arumuga Nainar | 7c91505 | 2015-04-08 08:58:29 -0700 | [diff] [blame] | 1 | // RUN: %clangxx_msan -O0 %s -o %t && %run %t |
| 2 | // RUN: %clangxx_msan -DPOSITIVE -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s |
| Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 3 | // REQUIRES: x86_64-supported-target |
| Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 4 | |
| 5 | #include <emmintrin.h> |
| 6 | |
| 7 | int to_int(double v) { |
| 8 | __m128d t = _mm_set_sd(v); |
| 9 | int x = _mm_cvtsd_si32(t); |
| 10 | return x; |
| 11 | // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value |
| Stephen Hines | 6a211c5 | 2014-07-21 00:49:56 -0700 | [diff] [blame] | 12 | // CHECK: #{{.*}} in to_int{{.*}}vector_cvt.cc:[[@LINE-3]] |
| Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 13 | } |
| 14 | |
| 15 | int main() { |
| 16 | #ifdef POSITIVE |
| 17 | double v; |
| 18 | #else |
| 19 | double v = 1.1; |
| 20 | #endif |
| 21 | double* volatile p = &v; |
| 22 | int x = to_int(*p); |
| 23 | return !x; |
| 24 | } |