1*d21b3d34SFangrui Song // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
2*d21b3d34SFangrui Song // RUN: %clangxx_msan -fsanitize-memory-track-origins -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
3*d21b3d34SFangrui Song // RUN: %clangxx_msan -fsanitize-memory-track-origins -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
4*d21b3d34SFangrui Song 
5*d21b3d34SFangrui Song // Test condition origin propagation through "select" IR instruction.
6*d21b3d34SFangrui Song 
7*d21b3d34SFangrui Song #include <stdio.h>
8*d21b3d34SFangrui Song #include <stdint.h>
9*d21b3d34SFangrui Song 
10*d21b3d34SFangrui Song __attribute__((noinline))
max_by_ptr(int * a,int * b)11*d21b3d34SFangrui Song int *max_by_ptr(int *a, int *b) {
12*d21b3d34SFangrui Song   return *a < *b ? b : a;
13*d21b3d34SFangrui Song }
14*d21b3d34SFangrui Song 
main(void)15*d21b3d34SFangrui Song int main(void) {
16*d21b3d34SFangrui Song   int x;
17*d21b3d34SFangrui Song   int *volatile px = &x;
18*d21b3d34SFangrui Song   int y = 43;
19*d21b3d34SFangrui Song   int *p = max_by_ptr(px, &y);
20*d21b3d34SFangrui Song   // CHECK: Uninitialized value was created by an allocation of 'x' in the stack frame of function 'main'
21*d21b3d34SFangrui Song   return *p;
22*d21b3d34SFangrui Song }
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