compiler-rt/test/ubsan/TestCases/ImplicitConversion/integer-sign-change-ignorelist.c

   1 // RUN: %clang -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change                           -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,ERROR
   2 // RUN: %clang -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change                           -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,ERROR
   3 // RUN: %clang -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change                           -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,ERROR
   4 // RUN: %clang -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change                           -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,ERROR
   5
   6 // RUN: rm -f %tmp
   7 // RUN: echo "[implicit-integer-sign-change]" >> %tmp
   8 // RUN: echo "fun:implicitSignChange" >> %tmp
   9 // RUN: %clang -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change -fsanitize-ignorelist=%tmp -O0 %s -o %t && %run %t 2>&1 | FileCheck %s
  10 // RUN: %clang -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change -fsanitize-ignorelist=%tmp -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
  11 // RUN: %clang -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change -fsanitize-ignorelist=%tmp -O2 %s -o %t && %run %t 2>&1 | FileCheck %s
  12 // RUN: %clang -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change -fsanitize-ignorelist=%tmp -O3 %s -o %t && %run %t 2>&1 | FileCheck %s
  13
  14 #include <stdint.h>
  15 #include <stdio.h>
  16
  17 int32_t implicitSignChange(uint32_t argc) {
  18   fprintf(stderr, "TEST\n");
  19   // CHECK-NOT: runtime error
  20   // CHECK-LABEL: TEST
  21   return argc; // BOOM
  22   // ERROR: {{.*}}integer-sign-change-ignorelist.c:[[@LINE-1]]:10: runtime error: implicit conversion from type '{{.*}}' (aka 'unsigned int') of value 4294967295 (32-bit, unsigned) to type '{{.*}}' (aka 'int') changed the value to -1 (32-bit, signed)
  23   // CHECK-NOT: runtime error
  24 }
  25
  26 int main(int argc, char **argv) {
  27   return !implicitSignChange(~0U);
  28 }