gcc-4_9/gcc/testsuite/gcc.target/nios2/custom-fp-7.c

   1 /* Test that duplicate declarations with the same custom insn attributes
   2    don't cause an error.  */
   3
   4 /* { dg-do compile } */
   5 /* { dg-options "-O1 -ffinite-math-only" } */
   6
   7 /* -O1 in the options is significant.  Without it FP operations may not be
   8    optimized to custom instructions.  */
   9
  10 #include <stdio.h>
  11 #include <math.h>
  12
  13 /* This test case is expected to cause an error because GCC does not know
  14    how to merge different custom instruction attribute sets, even if they
  15    do not overlap.  */
  16
  17 extern void
  18 custom_fp (float operand_a, float operand_b, float *result)
  19   __attribute__ ((target ("custom-fmaxs=246,custom-fmins=247")));
  20
  21 extern void
  22 custom_fp (float operand_a, float operand_b, float *result)
  23   __attribute__ ((target ("custom-fmaxs=246,custom-fmins=247")));
  24
  25 void
  26 custom_fp (float operand_a, float operand_b, float *result)
  27 {
  28   result[0] = fmaxf (operand_a, operand_b);
  29   result[1] = fminf (operand_a, operand_b);
  30 }
  31
  32 /* { dg-final { scan-assembler "custom\\t246, .* # fmaxs .*" } } */
  33 /* { dg-final { scan-assembler "custom\\t247, .* # fmins .*" } } */