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/* PR target/6542

   This testcase caused ICE on SPARC because the function uses no registers

   after optimizing, so even if -mflat make all registers not permitted

   for leaf functions, the function was still leaf, but LEAF_REG_REMAP

   returned -1 for some registers (like %o0).  */

/* { dg-do compile } */

/* { dg-options "-O2 -g -mflat" { target sparc*-*-* } } */

void foo (char *a, char *b, char *c, char *d)

{

}