xref: /aosp_15_r20/external/compiler-rt/test/ubsan/TestCases/Misc/deduplication.cpp (revision 7c3d14c8b49c529e04be81a3ce6f5cc23712e4c6) 
1*7c3d14c8STreehugger Robot // RUN: %clangxx -fsanitize=undefined %s -o %t && %run %t 2>&1 | FileCheck %s
2*7c3d14c8STreehugger Robot // Verify deduplication works by ensuring only one diag is emitted.
3*7c3d14c8STreehugger Robot #include <limits.h>
4*7c3d14c8STreehugger Robot #include <stdio.h>
5*7c3d14c8STreehugger Robot 
overflow()6*7c3d14c8STreehugger Robot void overflow() {
7*7c3d14c8STreehugger Robot   int i = INT_MIN;
8*7c3d14c8STreehugger Robot   --i;
9*7c3d14c8STreehugger Robot }
10*7c3d14c8STreehugger Robot 
main()11*7c3d14c8STreehugger Robot int main() {
12*7c3d14c8STreehugger Robot   // CHECK: Start
13*7c3d14c8STreehugger Robot   fprintf(stderr, "Start\n");
14*7c3d14c8STreehugger Robot   fflush(stderr);
15*7c3d14c8STreehugger Robot 
16*7c3d14c8STreehugger Robot   // CHECK: runtime error
17*7c3d14c8STreehugger Robot   // CHECK-NOT: runtime error
18*7c3d14c8STreehugger Robot   // CHECK-NOT: runtime error
19*7c3d14c8STreehugger Robot   overflow();
20*7c3d14c8STreehugger Robot   overflow();
21*7c3d14c8STreehugger Robot   overflow();
22*7c3d14c8STreehugger Robot 
23*7c3d14c8STreehugger Robot   // CHECK: End
24*7c3d14c8STreehugger Robot   fprintf(stderr, "End\n");
25*7c3d14c8STreehugger Robot   return 0;
26*7c3d14c8STreehugger Robot }
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