| /* { dg-do compile { target i?86-*-* } } */ |
| /* { dg-options -O0 } */ |
| |
| typedef int SItype __attribute__ ((mode (SI))); |
| typedef int DItype __attribute__ ((mode (DI))); |
| typedef unsigned int USItype __attribute__ ((mode (SI))); |
| struct DIstruct {SItype low, high;}; |
| typedef union |
| { |
| struct DIstruct s; |
| DItype ll; |
| } DIunion; |
| DItype |
| __muldi3 (DItype u, DItype v) |
| { |
| DIunion w; |
| DIunion uu, vv; |
| uu.ll = u, |
| vv.ll = v; |
| w.ll = ({DIunion __w; __asm__ ("mull %3" : "=a" ((USItype) ( __w.s.low )), "=d" ((USItype) ( __w.s.high )) : "%0" ((USItype) ( uu.s.low )), "rm" ((USItype) ( vv.s.low ))) ; __w.ll; }) ; |
| w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high |
| + (USItype) uu.s.high * (USItype) vv.s.low); |
| return w.ll; |
| } |
