gcc/testsuite/gcc.target/sh/sh2a-bclr.c

   1 /* Testcase to check generation of a SH2A specific instruction
   2    'BCLR #imm3,Rn'.  */
   3 /* { dg-do compile { target { sh2a } } }  */
   4 /* { dg-options "-O1" }  */
   5 /* { dg-final { scan-assembler "bclr"} }  */
   6
   7 struct a
   8 {
   9   char a, b;
  10   short c;
  11 };
  12
  13 /* This function generates the instruction "BCLR #imm3,Rn" only
  14    on using optimization option "-O1" and above.  */
  15
  16 int
  17 a2 ()
  18 {
  19   volatile int j;
  20   volatile static struct a x = {1, 66, ~1}, y = {1, 2, ~2};
  21
  22   if (j > 1)
  23     return (x.a == y.a && (x.b & ~1) == y.b);
  24   if (j > 2)
  25     return (x.a == y.a && (x.b & ~2) == y.b);
  26   if (j > 3)
  27     return (x.a == y.a && (x.b & ~4) == y.b);
  28   if (j > 4)
  29     return (x.a == y.a && (x.b & ~8) == y.b);
  30   if (j > 5)
  31     return (x.a == y.a && (x.b & ~16) == y.b);
  32   if (j > 6)
  33     return (x.a == y.a && (x.b & ~32) == y.b);
  34   if (j > 7)
  35     return (x.a == y.a && (x.b & ~64) == y.b);
  36   if (j > 8)
  37     return (x.a == y.a && (x.b & ~128) == y.b);
  38 }
  39
  40 int
  41 main ()
  42 {
  43   volatile unsigned char x;
  44
  45   x &= 0xFE;
  46   x &= 0xFD;
  47   x &= 0xFB;
  48   x &= 0xF7;
  49   x &= 0xEF;
  50   x &= 0xDF;
  51   x &= 0xBF;
  52   x &= 0x7F;
  53
  54   if (!a2 ())
  55     return 0;
  56 }