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
17int32_t implicitSignChange(uint32_t argc) {
18 fprintf(stderr, format: "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
26int main(int argc, char **argv) {
27 return !implicitSignChange(argc: ~0U);
28}
29

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