| /* { dg-do compile } */ |
| /* { dg-options "-O2" } */ |
| |
| #include <stdbool.h> |
| |
| bool my_uadd_overflow (unsigned int a, unsigned int b, unsigned int *res) |
| { |
| return __builtin_add_overflow (a, b, res); |
| } |
| |
| bool my_usub_overflow (unsigned int a, unsigned int b, unsigned int *res) |
| { |
| return __builtin_sub_overflow (a, b, res); |
| } |
| |
| bool my_uneg_overflow (unsigned int a, unsigned int *res) |
| { |
| return __builtin_sub_overflow (0, a, res); |
| } |
| |
| bool my_add_overflow (int a, int b, int *res) |
| { |
| return __builtin_add_overflow (a, b, res); |
| } |
| |
| bool my_sub_overflow (int a, int b, int *res) |
| { |
| return __builtin_sub_overflow (a, b, res); |
| } |
| |
| bool my_neg_overflow (int a, int *res) |
| { |
| return __builtin_sub_overflow (0, a, res); |
| } |
| |
| /* { dg-final { scan-assembler-times "add.l" 2 } } */ |
| /* { dg-final { scan-assembler-times "sub.l" 4 } } */ |
| /* { dg-final { scan-assembler-not "cmp.l" } } */ |
