1/* { dg-skip-if "not enough registers" { pdp11-*-* } { "-O[12s]" } { "" } } */ 2 3typedef unsigned short uint16_t; 4typedef unsigned int uint32_t; 5 6#define CF (1<<0) 7#define PF (1<<2) 8#define AF (1<<4) 9#define ZF (1<<6) 10#define SF (1<<7) 11#define OF (1<<11) 12 13#define EFLAGS_BITS (CF|PF|AF|ZF|SF|OF) 14 15void test16(uint16_t x, uint32_t eflags) 16{ 17 uint16_t bsr_result; 18 uint32_t bsr_eflags; 19 uint16_t bsf_result; 20 uint32_t bsf_eflags; 21 22 __asm volatile("" 23 : "=&r" (bsr_result), "=&r" (bsr_eflags) 24 : "r" (x), "i" (~EFLAGS_BITS), "r" (eflags)); 25 __asm volatile("" 26 : "=&r" (bsf_result), "=&r" (bsf_eflags) 27 : "r" (x), "i" (~EFLAGS_BITS), "r" (eflags)); 28 printf("%08x %04x bsrw %02x %08x bsfw %02x %08x\n", 29 x, eflags, bsr_result, bsr_eflags, bsf_result, bsf_eflags); 30} 31