none/tests/x86/bug135421-x86.c

   1
   2 /* Test for long-form encodings of push %reg */
   3
   4 #include <stdio.h>
   5
   6 int foo ( int x )
   7 {
   8   int block[2];
   9   block[0] = x;
  10   block[1] = 0;
  11   __asm__ __volatile__(
  12     "movl $0,%%edi\n\t"
  13     "movl $0,%%esi\n\t"
  14     "movl %0,%%edi\n\t"
  15     ".byte   0xFF,0xF7\n\t" /*pushl %edi */
  16     "popl %%esi\n\t"
  17     "movl %%esi, %1"
  18     : : /*in*/ "m"(block[0]), "m"(block[1]) : "esi","edi","memory"
  19   );
  20   return block[1];
  21 }
  22
  23 int main ( void )
  24 {
  25   int i;
  26   for (i = 0; i < 100000000; i += 11111111)
  27     printf("%d %d\n",i,foo(i));
  28   return 0;
  29 }