[Bug target/102211] ICE introduced by r12-3277

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102211

--- Comment #1 from Hongtao.liu <crazylht at gmail dot com> ---
But it's ok for

float
foo (float a, long b)
{
  union{float a[2];
    long b;}c;
  c.b = b;
  return c.a[0];
}


foo:
        fmv.w.x fa0,a0
        ret

Which means movement between gpr and float reg is allowed.