gcc/testsuite/gcc.target/nios2/custom-fp-1.c

   1 /* Test specification of custom instructions via command-line options.  */
   2
   3 /* { dg-do compile } */
   4 /* { dg-options "-O1 -ffinite-math-only -mcustom-fmaxs=246 -mcustom-fmins=247 -mcustom-fsqrts=251" } */
   5
   6 /* -O1 in the options is significant.  Without it FP operations may not be
   7    optimized to custom instructions.  */
   8
   9 #include <stdio.h>
  10 #include <math.h>
  11
  12 void
  13 custom_fp (float operand_a, float operand_b, float *result)
  14 {
  15   result[0] = fmaxf (operand_a, operand_b);
  16   result[1] = fminf (operand_a, operand_b);
  17   result[2] = sqrtf (operand_a);
  18 }
  19
  20 /* { dg-final { scan-assembler "custom\\t246, .* # fmaxs .*" } } */
  21 /* { dg-final { scan-assembler "custom\\t247, .* # fmins .*" } } */
  22 /* { dg-final { scan-assembler "custom\\t251, .* # fsqrts .*" } } */