gcc/testsuite/gcc.target/hppa/shadd-3.c

   1 /* { dg-do compile }  */
   2 /* { dg-options "-O2 -fno-delayed-branch" }  */
   3 /* In this test we want to verify that combine canonicalizes the
   4    MULT into an ASHIFT which in turn allows postreload-gcse to
   5    find the common subexpression.
   6
   7    Neither pass dumps stuff in a format that is particularly good
   8    for parsing here, so we count the shadd insns.  More is not
   9    necessarily better in this test.  If this test is too fragile
  10    over time we'll have to revisit the combine and/or postreload
  11    dumps.  Note we have disabled delay slot filling to improve
  12    test stability.  */
  13 /* { dg-final { scan-assembler-times "sh.add" 3 } }  */
  14
  15 extern void oof (void);
  16 typedef struct simple_bitmap_def *sbitmap;
  17 struct simple_bitmap_def
  18 {
  19   unsigned char *popcount;
  20   unsigned int n_bits;
  21   unsigned long elms[1];
  22 };
  23 __inline__ void
  24 SET_BIT (sbitmap map, unsigned int bitno)
  25 {
  26   if (map->popcount)
  27     {
  28       unsigned char oldbit;
  29       oldbit =
  30         ((map)->elms[bitno / 64]);
  31       if (!oldbit)
  32         oof ();
  33     }
  34   map->elms[bitno / 64] |= 1;
  35 }
  36
  37 void
  38 fix_bb_placements (int indx1, int indx2, sbitmap in_queue)
  39 {
  40   SET_BIT (in_queue, indx1);
  41   SET_BIT (in_queue, indx2);
  42 }