[Bug target/78458] [7 Regression] LRA ICE building libgcc for powerpc-linux-gnuspe e500v2

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78458

--- Comment #7 from Peter Bergner <bergner at gcc dot gnu.org> ---
Here's a smaller test case that induces spilling which leads to our ICE:

extern void bar (void);
_Complex
foo (long double p1)
{
  _Complex e;
  bar ();
  asm volatile ("# clobbers" :::
                "r14", "r15", "r16", "r17", "r18", "r19",
                "r20", "r21", "r22", "r23", "r24", "r25",
                "r26", "r27", "r28", "r29", "r30", "r31");

  __imag__ e = p1;
  return e;
}