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-blacklist=%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-blacklist=%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-blacklist=%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-blacklist=%tmp -O3 %s -o %t && %run %t 2>&1 | FileCheck %s
13
14 #include <stdint.h>
15 #include <stdio.h>
16
implicitSignChange(uint32_t argc)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-blacklist.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
main(int argc,char ** argv)26 int main(int argc, char **argv) {
27 return !implicitSignChange(~0U);
28 }
29