gcc/testsuite/gcc.target/powerpc/builtin-fegetround.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target fenv_exceptions } */
   3 /* { dg-options "-lm -fno-builtin" } */
   4
   5 /* This testcase ensures that the builtins is correctly expanded and match the
   6    expected result from the standard function.
   7    "-fno-builtin" option is used to enable calls to libc implementation of the
   8    gcc builtins tested when not using __builtin_ prefix. */
   9
  10 #include <fenv.h>
  11
  12 #ifdef DEBUG
  13 #include <stdio.h>
  14 #define FAIL(v, e) printf("ERROR, __builtin_fegetround() returned %d," \
  15                           " not the expecected value %d\n", v, e);
  16 #else
  17 void abort (void);
  18 #define FAIL(v, e) abort()
  19 #endif
  20
  21 int
  22 main ()
  23 {
  24   int i, rounding, expected;
  25   const int rm[] = {FE_TONEAREST, FE_TOWARDZERO, FE_UPWARD, FE_DOWNWARD};
  26   for (i = 0; i < sizeof rm / sizeof rm[0]; i++)
  27     {
  28       fesetround(rm[i]);
  29       rounding = __builtin_fegetround();
  30       expected = fegetround();
  31       if (rounding != expected)
  32         FAIL(rounding, expected);
  33     }
  34
  35   return 0;
  36 }