gcc-4.9/gcc/testsuite/gcc.target/mips/umips-swp-5.c


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/* { dg-options "-fpeephole2 -mtune=m14k (-mmicromips)" } */
/* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */

void MICROMIPS
foo (int *r4, int r5, int r6)
{
  r5 *= r5;
  r4[511] = r5;
  r4[512] = r6;
  {
    register int r5asm asm ("$5") = r5;
    register int r6asm asm ("$6") = r6;
    asm ("#foo" : "=m" (r4[2]) : "d" (r5asm), "d" (r6asm));
  }
}

/* { dg-final { scan-assembler "\tswp\t\\\$5,2044\\(\\\$4\\)" } }*/