insertvalue_origin.cc revision 7c9150579ed0278492f51cc8434b1d63a44b9bd1 
1// RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t >%t.out 2>&1
2// RUN: FileCheck %s < %t.out && FileCheck %s < %t.out
3// RUN: %clangxx_msan -fsanitize-memory-track-origins -O3 %s -o %t && not %run %t >%t.out 2>&1
4// RUN: FileCheck %s < %t.out && FileCheck %s < %t.out
5
6// Test origin propagation through insertvalue IR instruction.
7
8#include <stdio.h>
9#include <stdint.h>
10
11struct mypair {
12 int64_t x;
13 int y;
14};
15
16mypair my_make_pair(int64_t x, int y)  {
17 mypair p;
18 p.x = x;
19 p.y = y;
20 return p;
21}
22
23int main() {
24 int64_t * volatile p = new int64_t;
25 mypair z = my_make_pair(*p, 0);
26 if (z.x)
27   printf("zzz\n");
28 // CHECK: MemorySanitizer: use-of-uninitialized-value
29 // CHECK: {{in main .*insertvalue_origin.cc:}}[[@LINE-3]]
30
31 // CHECK: Uninitialized value was created by a heap allocation
32 // CHECK: {{in main .*insertvalue_origin.cc:}}[[@LINE-8]]
33 delete p;
34 return 0;
35}
36