| /* { dg-do run { target powerpc*-*-* i?86-*-* x86_64-*-* } } */ |
| /* { dg-options "-O1" } */ |
| /* Test to make sure that inline-asm causes the tree optimizers to get the |
| V_MAY_DEFs and clobber memory. */ |
| /* Test from Jakub Jelinek, modified by Andrew Pinski to work on all powerpc targets. */ |
| extern void abort (void); |
| |
| unsigned short v = 0x0300; |
| |
| void |
| foo (unsigned short *p) |
| { |
| *p = v; |
| } |
| |
| int |
| bar (void) |
| { |
| unsigned short x; |
| volatile unsigned short *z; |
| foo (&x); |
| const unsigned int y = x; |
| z = &x; |
| #if defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) || defined (_POWER) || defined (__ppc64__) || defined (__ppc) |
| __asm __volatile ("sthbrx %1,0,%2" : "=m" (*z) : "r" (y), "r" (z)); |
| #elif defined __i386__ || defined __x86_64__ |
| __asm __volatile ("movb %b1,1(%2)\n\tmovb %h1,(%2)" |
| : "=m" (*z) : "Q" (y), "R" (z)); |
| #endif |
| return (x & 1) == 0; |
| } |
| |
| int |
| main (void) |
| { |
| if (bar ()) |
| abort (); |
| return 0; |
| } |
