| /* { dg-do run } */ | |
| /* { dg-options "-O2 -mARC700 --save-temps" } */ | |
| #include <stdlib.h> | |
| /* Hide value propagation from the optimizers. */ | |
| static int | |
| id (int i) | |
| { | |
| asm ("": "+Xr" (i)); | |
| return i; | |
| } | |
| static int | |
| mulhigh (unsigned a, unsigned b) | |
| { | |
| return (unsigned long long) a * b >> 32; | |
| } | |
| int | |
| main (void) | |
| { | |
| if (mulhigh (id (0x12345678), id (0x90abcdef)) != 0xa49a83e) | |
| abort (); | |
| return 0; | |
| } | |
| /* { dg-final { scan-assembler "mpyhu\[ \t\]" } } */ |