src/libcompiler_builtins/compiler-rt/test/ubsan/TestCases/Integer/no-recover.cpp

   1 // RUN: %clangxx -fsanitize=unsigned-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER
   2 // RUN: %clangxx -fsanitize=unsigned-integer-overflow -fno-sanitize-recover=all -fsanitize-recover=unsigned-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER
   3 // RUN: %clangxx -fsanitize=unsigned-integer-overflow -fno-sanitize-recover=unsigned-integer-overflow %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=ABORT
   4
   5 #include <stdint.h>
   6
   7 int main() {
   8   // These promote to 'int'.
   9   (void)(uint8_t(0xff) + uint8_t(0xff));
  10   (void)(uint16_t(0xf0fff) + uint16_t(0x0fff));
  11   // RECOVER-NOT: runtime error
  12   // ABORT-NOT: runtime error
  13
  14   uint32_t k = 0x87654321;
  15   k += 0xedcba987;
  16   // RECOVER: no-recover.cpp:[[@LINE-1]]:5: runtime error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'unsigned int'
  17   // ABORT: no-recover.cpp:[[@LINE-2]]:5: runtime error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'unsigned int'
  18
  19   (void)(uint64_t(10000000000000000000ull) + uint64_t(9000000000000000000ull));
  20   // RECOVER: 10000000000000000000 + 9000000000000000000 cannot be represented in type 'unsigned {{long( long)?}}'
  21   // ABORT-NOT: runtime error
  22 }