gcc/testsuite/gcc.dg/20020503-1.c

   1 /* PR target/6542
   2    This testcase caused ICE on SPARC because the function uses no registers
   3    after optimizing, so even if -mflat make all registers not permitted
   4    for leaf functions, the function was still leaf, but LEAF_REG_REMAP
   5    returned -1 for some registers (like %o0).  */
   6 /* { dg-do compile } */
   7 /* { do-options "-O2 -g" } */
   8 /* { do-options "-O2 -g -mflat" { target sparc*-*-* } } */
   9
  10 void foo (char *a, char *b, char *c, char *d)
  11 {
  12 }