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// RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -O3 %s -o %t && \
// RUN: MSAN_OPTIONS=store_context_size=1 not %run %t 2>&1 | FileCheck %s
// Test that stack trace for the intermediate store is not empty.
// CHECK: MemorySanitizer: use-of-uninitialized-value
// CHECK: #0 {{.*}} in main
// CHECK: Uninitialized value was stored to memory at
// CHECK: #0 {{.*}} in fn_g
// CHECK-NOT: #1
// CHECK: Uninitialized value was created by an allocation of 'z' in the stack frame of function 'main'
// CHECK: #0 {{.*}} in main
#include <stdio.h>
volatile int x;
__attribute__((noinline))
void fn_g(int a) {
x = a;
}
__attribute__((noinline))
void fn_f(int a) {
fn_g(a);
}
int main(int argc, char *argv[]) {
int volatile z;
fn_f(z);
return x;
}
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