xref: /aosp_15_r20/external/compiler-rt/test/msan/rand_r.cc (revision 7c3d14c8b49c529e04be81a3ce6f5cc23712e4c6) 
1*7c3d14c8STreehugger Robot // RUN: %clangxx_msan -O0 -g %s -o %t && %run %t
2*7c3d14c8STreehugger Robot // RUN: %clangxx_msan -O0 -g -DUNINIT %s -o %t && not %run %t 2>&1 | FileCheck %s
3*7c3d14c8STreehugger Robot 
4*7c3d14c8STreehugger Robot #include <assert.h>
5*7c3d14c8STreehugger Robot #include <stdio.h>
6*7c3d14c8STreehugger Robot #include <stdlib.h>
7*7c3d14c8STreehugger Robot 
main(void)8*7c3d14c8STreehugger Robot int main(void) {
9*7c3d14c8STreehugger Robot   unsigned seed;
10*7c3d14c8STreehugger Robot #ifndef UNINIT
11*7c3d14c8STreehugger Robot   seed = 42;
12*7c3d14c8STreehugger Robot #endif
13*7c3d14c8STreehugger Robot   int v = rand_r(&seed);
14*7c3d14c8STreehugger Robot   // CHECK: MemorySanitizer: use-of-uninitialized-value
15*7c3d14c8STreehugger Robot   // CHECK: in main{{.*}}rand_r.cc:[[@LINE-2]]
16*7c3d14c8STreehugger Robot   if (v) printf(".\n");
17*7c3d14c8STreehugger Robot   return 0;
18*7c3d14c8STreehugger Robot }
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