compiler-rt/test/ubsan_minimal/TestCases/implicit-signed-integer-truncation-or-sign-change.c

   1 // RUN: %clang -fsanitize=implicit-signed-integer-truncation,implicit-integer-sign-change %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK
   2
   3 #include <stdint.h>
   4
   5 int main() {
   6 // CHECK-NOT: implicit-conversion
   7
   8   // Explicitly casting hides it,
   9   int8_t n0 = (int8_t)((uint32_t)-1);
  10
  11   // Positive tests.
  12   int8_t t0 = (uint32_t)-1;
  13 // CHECK: implicit-conversion by 0x{{[[:xdigit:]]+$}}
  14 // CHECK-NOT: implicit-conversion
  15
  16   return 0;
  17 }