gcc/testsuite/gcc.target/vax/cmpelim-leu-subqi.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fdump-rtl-cmpelim -dp" } */
   3 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" "-O1" } { "" } } */
   4
   5 typedef unsigned int __attribute__ ((mode (QI))) int_t;
   6
   7 void
   8 leu_subqi (int_t *w, int_t *x, int_t *y)
   9 {
  10   int_t v;
  11
  12   v = *x - *y;
  13   if (*x <= *y)
  14     *w = v;
  15   else
  16     *w = v + 2;
  17 }
  18
  19 /* Expect assembly like:
  20
  21         movb *8(%ap),%r2                # 28    [c=24]  *movqi
  22         movb *12(%ap),%r1               # 29    [c=24]  *movqi
  23         subb3 %r1,%r2,%r0               # 30    [c=32]  *subqi3_cc/1
  24         jlequ .L2                       # 32    [c=26]  *branch_cc
  25         addb2 $2,%r0                    # 27    [c=32]  *addqi3
  26 .L2:
  27
  28  */
  29
  30 /* { dg-final { scan-rtl-dump-times "deleting insn with uid" 1 "cmpelim" } } */
  31 /* { dg-final { scan-assembler-not "\t(bit|cmpz?|tst). " } } */
  32 /* { dg-final { scan-assembler "subqi\[^ \]*_cc(/\[0-9\]+)?\n" } } */
  33 /* { dg-final { scan-assembler "branch_cc\n" } } */