1*d21b3d34SFangrui Song // Regression test for origin propagation in "select i1, float, float".
2*d21b3d34SFangrui Song // https://code.google.com/p/memory-sanitizer/issues/detail?id=78
3*d21b3d34SFangrui Song 
4*d21b3d34SFangrui Song // RUN: %clangxx_msan -O2 -fsanitize-memory-track-origins %s -o %t && not %run %t >%t.out 2>&1
5*d21b3d34SFangrui Song // RUN: FileCheck %s < %t.out
6*d21b3d34SFangrui Song 
7*d21b3d34SFangrui Song // RUN: %clangxx_msan -O2 -fsanitize-memory-track-origins=2 %s -o %t && not %run %t >%t.out 2>&1
8*d21b3d34SFangrui Song // RUN: FileCheck %s < %t.out
9*d21b3d34SFangrui Song 
10*d21b3d34SFangrui Song #include <stdio.h>
11*d21b3d34SFangrui Song #include <sanitizer/msan_interface.h>
12*d21b3d34SFangrui Song 
main()13*d21b3d34SFangrui Song int main() {
14*d21b3d34SFangrui Song   volatile bool b = true;
15*d21b3d34SFangrui Song   float x, y;
16*d21b3d34SFangrui Song   __msan_allocated_memory(&x, sizeof(x));
17*d21b3d34SFangrui Song   __msan_allocated_memory(&y, sizeof(y));
18*d21b3d34SFangrui Song   float z = b ? x : y;
19*d21b3d34SFangrui Song   if (z > 0) printf(".\n");
20*d21b3d34SFangrui Song   // CHECK: Memory was marked as uninitialized
21*d21b3d34SFangrui Song   // CHECK: {{#0 0x.* in .*__msan_allocated_memory}}
22*d21b3d34SFangrui Song   // CHECK: {{#1 0x.* in main .*select_float_origin.cpp:}}[[@LINE-6]]
23*d21b3d34SFangrui Song   return 0;
24*d21b3d34SFangrui Song }
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