1 // RUN: %clangxx -DLSH_OVERFLOW -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-LSH_OVERFLOW
2 // RUN: %clangxx -DLSH_OVERFLOW -DOP='<<=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-LSH_OVERFLOW
3 // RUN: %clangxx -DTOO_LOW -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW
4 // RUN: %clangxx -DTOO_LOW -DOP='>>' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW
5 // RUN: %clangxx -DTOO_LOW -DOP='<<=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW
6 // RUN: %clangxx -DTOO_LOW -DOP='>>=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW
7 // RUN: %clangxx -DTOO_HIGH -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH
8 // RUN: %clangxx -DTOO_HIGH -DOP='>>' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH
9 // RUN: %clangxx -DTOO_HIGH -DOP='<<=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH
10 // RUN: %clangxx -DTOO_HIGH -DOP='>>=' -fsanitize=shift -fno-sanitize-recover=shift %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH
11
12 // RUN: %clangxx -DLSH_OVERFLOW -DOP='<<' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t && %run %t
13 // RUN: %clangxx -DLSH_OVERFLOW -DOP='>>' -fsanitize=shift-exponent -fno-sanitize-recover=shift %s -o %t && %run %t
14 // RUN: %clangxx -DTOO_LOW -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && %run %t
15 // RUN: %clangxx -DTOO_LOW -DOP='>>' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && %run %t
16 // RUN: %clangxx -DTOO_HIGH -DOP='<<' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && %run %t
17 // RUN: %clangxx -DTOO_HIGH -DOP='>>' -fsanitize=shift-base -fno-sanitize-recover=shift %s -o %t && %run %t
18
19 #include <stdint.h>
20
main()21 int main() {
22 int a = 1;
23 unsigned b = 1;
24
25 a <<= 31; // ok in C++11, not ok in C99/C11
26 b <<= 31; // ok
27 b <<= 1; // still ok, unsigned
28
29 #ifdef LSH_OVERFLOW
30 // CHECK-LSH_OVERFLOW: shift.cpp:[[@LINE+1]]:5: runtime error: left shift of negative value -2147483648
31 a OP 1;
32 #endif
33
34 #ifdef TOO_LOW
35 a = 0;
36 // CHECK-TOO_LOW: shift.cpp:[[@LINE+1]]:5: runtime error: shift exponent -3 is negative
37 a OP (-3);
38 #endif
39
40 #ifdef TOO_HIGH
41 a = 0;
42 // CHECK-TOO_HIGH: shift.cpp:[[@LINE+1]]:5: runtime error: shift exponent 32 is too large for 32-bit type 'int'
43 a OP 32;
44 #endif
45 }
46