gcc/testsuite/gcc.target/sh/pr53976-1.c

   1 /* Check that the SH specific sh_optimize_sett_clrt RTL optimization pass
   2    works as expected.  */
   3 /* { dg-do compile }  */
   4 /* { dg-options "-O2" } */
   5 /* { dg-skip-if "" { "sh*-*-*" } { "-m5*" } { "" } } */
   6 /* { dg-final { scan-assembler-times "clrt" 2 } } */
   7 /* { dg-final { scan-assembler-times "sett" 1 } } */
   8
   9 long long
  10 test_00 (long long a, long long b, long long c, int d)
  11 {
  12   /* One of the blocks should have a clrt and the other one should not.  */
  13   if (d > 5)
  14     return a + b;
  15   else
  16     return a + c;
  17 }
  18
  19 long long
  20 test_01 (long long a, long long b)
  21 {
  22   /* Must see a clrt because T bit is undefined at function entry.  */
  23   return a + b;
  24 }
  25
  26 int
  27 test_02 (const char* a)
  28 {
  29   /* Must not see a sett after the inlined strlen.  */
  30   return __builtin_strlen (a);
  31 }
  32
  33 int
  34 test_03 (int a, int b, int c, int d)
  35 {
  36   /* One of the blocks should have a sett and the other one should not.  */
  37   if (d > 4)
  38     return a + b + 1;
  39   else
  40     return a + c + 1;
  41 }