gcc/testsuite/gcc.target/sparc/sparc-trap-1.c

   1 /* PR target/15693 */
   2
   3 /* { dg-do compile } */
   4 /* { dg-options "-O2" } */
   5
   6 /* This used to fail on SPARC at -O2 because the combiner
   7    produces a compare insn that was not rematched by the
   8    compare expander.  */
   9
  10 static __inline__ __attribute__ ((always_inline))
  11 int page_mapping (unsigned flags)
  12 {
  13   if (1u & (flags >> 16))
  14     return 1;
  15   return 0;
  16 }
  17 void install_page (unsigned flags)
  18 {
  19   if (__builtin_expect (!page_mapping (flags), 0))
  20     __builtin_trap ();
  21 }