gcc/testsuite/gcc.target/sh/pr51244-4.c

   1 /* Check that storing the (negated) T bit as all ones or zeros in a reg
   2    uses the subc instruction.  */
   3 /* { dg-do compile }  */
   4 /* { dg-options "-O1 -mbranch-cost=2" } */
   5 /* { dg-final { scan-assembler-not "movt|tst|negc|movrt" } } */
   6 /* { dg-final { scan-assembler-times "subc" 3 } }  */
   7 /* { dg-final { scan-assembler-times "not\t" 1 } }  */
   8 /* { dg-final { scan-assembler-times "shll" 1 } }  */
   9 /* { dg-final { scan-assembler-not "cmp/gt" } }  */
  10
  11 int
  12 test_00 (int x, int y)
  13 {
  14   /* 1x subc, 1x not  */
  15   return x != y ? -1 : 0;
  16 }
  17
  18 int
  19 test_01 (int x, int y)
  20 {
  21   /* 1x subc  */
  22   return x == y ? -1 : 0;
  23 }
  24
  25 int
  26 test_02 (int x)
  27 {
  28   /* 1x shll, 1x subc  */
  29   return 0 <= x ? 0 : -1;
  30 }