| /* { dg-do compile } */ | |
| /* { dg-require-effective-target lp64 } */ | |
| /* { dg-options "-std=gnu99 -O2" } */ | |
| /* { dg-final { scan-assembler "salq\[ \\t\]+\\\$8, %rbx" } } */ | |
| #include <stdint.h> | |
| register uint64_t global_flag_stack __asm__("rbx"); | |
| void push_flag_into_global_reg_var(uint64_t a, uint64_t b) { | |
| uint64_t flag = (a==b); | |
| global_flag_stack <<= 8; | |
| global_flag_stack |= flag; | |
| } |