| // RUN: %clangxx -DLSH_OVERFLOW -DOP='<<' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-LSH_OVERFLOW |
| // RUN: %clangxx -DLSH_OVERFLOW -DOP='<<=' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-LSH_OVERFLOW |
| // RUN: %clangxx -DTOO_LOW -DOP='<<' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW |
| // RUN: %clangxx -DTOO_LOW -DOP='>>' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW |
| // RUN: %clangxx -DTOO_LOW -DOP='<<=' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW |
| // RUN: %clangxx -DTOO_LOW -DOP='>>=' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_LOW |
| // RUN: %clangxx -DTOO_HIGH -DOP='<<' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH |
| // RUN: %clangxx -DTOO_HIGH -DOP='>>' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH |
| // RUN: %clangxx -DTOO_HIGH -DOP='<<=' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH |
| // RUN: %clangxx -DTOO_HIGH -DOP='>>=' -fsanitize=shift %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TOO_HIGH |
| |
| #include <stdint.h> |
| |
| int main() { |
| int a = 1; |
| unsigned b = 1; |
| |
| a <<= 31; // ok in C++11, not ok in C99/C11 |
| b <<= 31; // ok |
| b <<= 1; // still ok, unsigned |
| |
| #ifdef LSH_OVERFLOW |
| // CHECK-LSH_OVERFLOW: shift.cpp:24:5: runtime error: left shift of negative value -2147483648 |
| a OP 1; |
| #endif |
| |
| #ifdef TOO_LOW |
| // CHECK-TOO_LOW: shift.cpp:29:5: runtime error: shift exponent -3 is negative |
| a OP (-3); |
| #endif |
| |
| #ifdef TOO_HIGH |
| a = 0; |
| // CHECK-TOO_HIGH: shift.cpp:35:5: runtime error: shift exponent 32 is too large for 32-bit type 'int' |
| a OP 32; |
| #endif |
| } |
