xref: /llvm-project/compiler-rt/test/tysan/union-wr-wr.c (revision 641fbf1524338c86c952ebb1ec8d2b497ada3cef) 
1*641fbf15SFlorian Hahn // RUN: %clang_tysan -O0 %s -o %t && %run %t >%t.out 2>&1
2*641fbf15SFlorian Hahn // RUN: FileCheck %s < %t.out
3*641fbf15SFlorian Hahn 
4*641fbf15SFlorian Hahn #include <stdio.h>
5*641fbf15SFlorian Hahn 
6*641fbf15SFlorian Hahn // CHECK-NOT: ERROR: TypeSanitizer: type-aliasing-violation
7*641fbf15SFlorian Hahn 
8*641fbf15SFlorian Hahn int main() {
9*641fbf15SFlorian Hahn   union {
10*641fbf15SFlorian Hahn     int i;
11*641fbf15SFlorian Hahn     short s;
12*641fbf15SFlorian Hahn   } u;
13*641fbf15SFlorian Hahn 
14*641fbf15SFlorian Hahn   u.i = 42;
15*641fbf15SFlorian Hahn   u.s = 1;
16*641fbf15SFlorian Hahn 
17*641fbf15SFlorian Hahn   printf("%d\n", u.i);
18*641fbf15SFlorian Hahn }
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