1*d21b3d34SFangrui Song // RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -O3 %s -o %t && \
2*d21b3d34SFangrui Song // RUN:     MSAN_OPTIONS=store_context_size=1 not %run %t 2>&1 | FileCheck %s
3*d21b3d34SFangrui Song 
4*d21b3d34SFangrui Song // Test that stack trace for the intermediate store is not empty.
5*d21b3d34SFangrui Song 
6*d21b3d34SFangrui Song // CHECK: MemorySanitizer: use-of-uninitialized-value
7*d21b3d34SFangrui Song // CHECK:   #0 {{.*}} in main
8*d21b3d34SFangrui Song 
9*d21b3d34SFangrui Song // CHECK: Uninitialized value was stored to memory at
10*d21b3d34SFangrui Song // CHECK:   #0 {{.*}} in fn_g
11*d21b3d34SFangrui Song // CHECK-NOT: #1
12*d21b3d34SFangrui Song 
13*d21b3d34SFangrui Song // CHECK: Uninitialized value was created by an allocation of 'z' in the stack frame of function 'main'
14*d21b3d34SFangrui Song // CHECK:   #0 {{.*}} in main
15*d21b3d34SFangrui Song 
16*d21b3d34SFangrui Song #include <stdio.h>
17*d21b3d34SFangrui Song 
18*d21b3d34SFangrui Song volatile int x;
19*d21b3d34SFangrui Song 
20*d21b3d34SFangrui Song __attribute__((noinline))
fn_g(int a)21*d21b3d34SFangrui Song void fn_g(int a) {
22*d21b3d34SFangrui Song   x = a;
23*d21b3d34SFangrui Song }
24*d21b3d34SFangrui Song 
25*d21b3d34SFangrui Song __attribute__((noinline))
fn_f(int a)26*d21b3d34SFangrui Song void fn_f(int a) {
27*d21b3d34SFangrui Song   fn_g(a);
28*d21b3d34SFangrui Song }
29*d21b3d34SFangrui Song 
main(int argc,char * argv[])30*d21b3d34SFangrui Song int main(int argc, char *argv[]) {
31*d21b3d34SFangrui Song   int volatile z;
32*d21b3d34SFangrui Song   fn_f(z);
33*d21b3d34SFangrui Song   return x;
34*d21b3d34SFangrui Song }
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