gnu/dist/gcc4/gcc/testsuite/gcc.dg/sparc-trap-1.c

   1 /* PR target/15693 */
   2 /* { dg-do compile { target sparc*-*-* } } */
   3 /* { dg-options "-O2" } */
   4
   5 /* This used to fail on SPARC at -O2 because the combiner
   6    produces a compare insn that was not rematched by the
   7    compare expander.  */
   8
   9 static __inline__ __attribute__ ((always_inline))
  10 int page_mapping (unsigned flags)
  11 {
  12   if (1u & (flags >> 16))
  13     return 1;
  14   return 0;
  15 }
  16 void install_page (unsigned flags)
  17 {
  18   if (__builtin_expect (!page_mapping (flags), 0))
  19     __builtin_trap ();
  20 }