gcc-4_9/gcc/testsuite/gcc.target/mips/umips-swp-2.c

   1 /* { dg-options "-fpeephole2 -mtune=m14k (-mmicromips)" } */
   2 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
   3
   4 void MICROMIPS
   5 foo (int *r4, int r5, int r6)
   6 {
   7   r6 *= r6;
   8   r4[0] = r5;
   9   r4[1] = r6;
  10   {
  11     register int r5asm asm ("$5") = r5;
  12     register int r6asm asm ("$6") = r6;
  13     asm ("#foo" : "=m" (r4[2]) : "d" (r5asm), "d" (r6asm));
  14   }
  15 }
  16
  17 /* { dg-final { scan-assembler "\tswp\t\\\$5,0\\(\\\$4\\)" } }*/