forked from OSchip/llvm-project
123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
// RUN: %clang -x c -fsanitize=implicit-conversion -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK
|
|
// RUN: %clang -x c -fsanitize=implicit-conversion -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK
|
|
// RUN: %clang -x c -fsanitize=implicit-conversion -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK
|
|
// RUN: %clang -x c -fsanitize=implicit-conversion -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK
|
|
|
|
// RUN: %clang -x c++ -fsanitize=implicit-conversion -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK
|
|
// RUN: %clang -x c++ -fsanitize=implicit-conversion -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK
|
|
// RUN: %clang -x c++ -fsanitize=implicit-conversion -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK
|
|
// RUN: %clang -x c++ -fsanitize=implicit-conversion -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK
|
|
|
|
void test_unsigned() {
|
|
unsigned char x;
|
|
|
|
x = 0;
|
|
x++;
|
|
x = 0;
|
|
++x;
|
|
|
|
x = 0;
|
|
x--;
|
|
// CHECK: {{.*}}integer-conversion-incdec.c:[[@LINE-1]]:4: runtime error: implicit conversion from type 'int' of value -1 (32-bit, signed) to type 'unsigned char' changed the value to 255 (8-bit, unsigned)
|
|
x = 0;
|
|
--x;
|
|
// CHECK: {{.*}}integer-conversion-incdec.c:[[@LINE-1]]:3: runtime error: implicit conversion from type 'int' of value -1 (32-bit, signed) to type 'unsigned char' changed the value to 255 (8-bit, unsigned)
|
|
|
|
x = 1;
|
|
x++;
|
|
x = 1;
|
|
++x;
|
|
|
|
x = 1;
|
|
x--;
|
|
x = 1;
|
|
--x;
|
|
|
|
x = 254;
|
|
x++;
|
|
x = 254;
|
|
++x;
|
|
|
|
x = 254;
|
|
x--;
|
|
x = 254;
|
|
--x;
|
|
|
|
x = 255;
|
|
x++;
|
|
// CHECK: {{.*}}integer-conversion-incdec.c:[[@LINE-1]]:4: runtime error: implicit conversion from type 'int' of value 256 (32-bit, signed) to type 'unsigned char' changed the value to 0 (8-bit, unsigned)
|
|
x = 255;
|
|
++x;
|
|
// CHECK: {{.*}}integer-conversion-incdec.c:[[@LINE-1]]:3: runtime error: implicit conversion from type 'int' of value 256 (32-bit, signed) to type 'unsigned char' changed the value to 0 (8-bit, unsigned)
|
|
|
|
x = 255;
|
|
x--;
|
|
x = 255;
|
|
--x;
|
|
}
|
|
|
|
void test_signed() {
|
|
signed char x;
|
|
|
|
x = -128;
|
|
x++;
|
|
x = -128;
|
|
++x;
|
|
|
|
x = -128;
|
|
x--;
|
|
// CHECK: {{.*}}integer-conversion-incdec.c:[[@LINE-1]]:4: runtime error: implicit conversion from type 'int' of value -129 (32-bit, signed) to type 'signed char' changed the value to 127 (8-bit, signed)
|
|
x = -128;
|
|
--x;
|
|
// CHECK: {{.*}}integer-conversion-incdec.c:[[@LINE-1]]:3: runtime error: implicit conversion from type 'int' of value -129 (32-bit, signed) to type 'signed char' changed the value to 127 (8-bit, signed)
|
|
|
|
x = -1;
|
|
x++;
|
|
x = -1;
|
|
++x;
|
|
|
|
x = -1;
|
|
x--;
|
|
x = -1;
|
|
--x;
|
|
|
|
x = 0;
|
|
x++;
|
|
x = 0;
|
|
++x;
|
|
|
|
x = 0;
|
|
x--;
|
|
x = 0;
|
|
--x;
|
|
|
|
x = 1;
|
|
x++;
|
|
x = 1;
|
|
++x;
|
|
|
|
x = 1;
|
|
x--;
|
|
x = 1;
|
|
--x;
|
|
|
|
x = 127;
|
|
x++;
|
|
// CHECK: {{.*}}integer-conversion-incdec.c:[[@LINE-1]]:4: runtime error: implicit conversion from type 'int' of value 128 (32-bit, signed) to type 'signed char' changed the value to -128 (8-bit, signed)
|
|
x = 127;
|
|
++x;
|
|
// CHECK: {{.*}}integer-conversion-incdec.c:[[@LINE-1]]:3: runtime error: implicit conversion from type 'int' of value 128 (32-bit, signed) to type 'signed char' changed the value to -128 (8-bit, signed)
|
|
|
|
x = 127;
|
|
x--;
|
|
x = 127;
|
|
--x;
|
|
}
|
|
|
|
int main() {
|
|
test_unsigned();
|
|
test_signed();
|
|
|
|
return 0;
|
|
}
|