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 assemble {target sh*-*-*}}  */
   4 /* { dg-options "-O1" }  */
   5 /* { dg-skip-if "" { "sh*-*-*" } "*" "-m2a -m2a-nofpu -m2a-single -m2a-single-only" }  */
   6 /* { dg-final { scan-assembler "bclr"} }  */
   7
   8 struct a
   9 {
  10   char a, b;
  11   short c;
  12 };
  13
  14 /* This function generates the instruction "BCLR #imm3,Rn" only
  15    on using optimization option "-O1" and above.  */
  16
  17 int
  18 a2 ()
  19 {
  20   volatile int j;
  21   volatile static struct a x = {1, 66, ~1}, y = {1, 2, ~2};
  22
  23   if (j > 1)
  24     return (x.a == y.a && (x.b & ~1) == y.b);
  25   if (j > 2)
  26     return (x.a == y.a && (x.b & ~2) == y.b);
  27   if (j > 3)
  28     return (x.a == y.a && (x.b & ~4) == y.b);
  29   if (j > 4)
  30     return (x.a == y.a && (x.b & ~8) == y.b);
  31   if (j > 5)
  32     return (x.a == y.a && (x.b & ~16) == y.b);
  33   if (j > 6)
  34     return (x.a == y.a && (x.b & ~32) == y.b);
  35   if (j > 7)
  36     return (x.a == y.a && (x.b & ~64) == y.b);
  37   if (j > 8)
  38     return (x.a == y.a && (x.b & ~128) == y.b);
  39 }
  40
  41 int
  42 main ()
  43 {
  44   volatile unsigned char x;
  45
  46   x &= 0xFE;
  47   x &= 0xFD;
  48   x &= 0xFB;
  49   x &= 0xF7;
  50   x &= 0xEF;
  51   x &= 0xDF;
  52   x &= 0xBF;
  53   x &= 0x7F;
  54
  55   if (!a2 ())
  56     return 0;
  57 }