gcc/testsuite/gcc.target/nios2/cdx-logical.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -march=r2 -mcdx" } */
   3
   4 /* Check generation of R2 CDX and.n, andi.n, or.n, xor.n, and not.n
   5    instructions.
   6
   7    and.n, or.n, and x.n require one of the input registers to be the same
   8    as the output register.  Since the tests below want to put the result
   9    in the return value register, they use this function to make sure that
  10    one of the input operands is also already in the return register.  */
  11
  12 extern unsigned int x (unsigned int a);
  13
  14 unsigned int f (unsigned int a, unsigned int b)
  15 {
  16   return x (a) & b;
  17 }
  18
  19 unsigned int g (unsigned int a)
  20 {
  21   return a & 31;
  22 }
  23
  24 unsigned int h (unsigned int a, unsigned int b)
  25 {
  26   return x (a) | b;
  27 }
  28
  29 unsigned int i (unsigned int a, unsigned int b)
  30 {
  31   return x (a) ^ b;
  32 }
  33
  34 unsigned int j (unsigned int a)
  35 {
  36   return ~a;
  37 }
  38
  39 /* { dg-final { scan-assembler "\tand\\.n\t.*" } } */
  40 /* { dg-final { scan-assembler "\tandi\\.n\t.*, 31" } } */
  41 /* { dg-final { scan-assembler "\tor\\.n\t.*" } } */
  42 /* { dg-final { scan-assembler "\txor\\.n\t.*" } } */
  43 /* { dg-final { scan-assembler "\tnot\\.n\t.*" } } */