gofast.c

用于进行gcc测试

/* Program to test gcc's usage of the gofast library.  */

/* The main guiding themes are to make it trivial to add test cases over time
   and to make it easy for a program to parse the output to see if the right
   libcalls are being made.  */

#include <stdio.h>

float fp_add (float a, float b) { return a + b; }
float fp_sub (float a, float b) { return a - b; }
float fp_mul (float a, float b) { return a * b; }
float fp_div (float a, float b) { return a / b; }
float fp_neg (float a) { return -a; }

double dp_add (double a, double b) { return a + b; }
double dp_sub (double a, double b) { return a - b; }
double dp_mul (double a, double b) { return a * b; }
double dp_div (double a, double b) { return a / b; }
double dp_neg (double a) { return -a; }

double fp_to_dp (float f) { return f; }
float dp_to_fp (double d) { return d; }

int eqsf2 (float a, float b) { return a == b; }
int nesf2 (float a, float b) { return a != b; }
int gtsf2 (float a, float b) { return a > b; }
int gesf2 (float a, float b) { return a >= b; }
int ltsf2 (float a, float b) { return a < b; }
int lesf2 (float a, float b) { return a <= b; }

int eqdf2 (double a, double b) { return a == b; }
int nedf2 (double a, double b) { return a != b; }
int gtdf2 (double a, double b) { return a > b; }
int gedf2 (double a, double b) { return a >= b; }
int ltdf2 (double a, double b) { return a < b; }
int ledf2 (double a, double b) { return a <= b; }

float floatsisf (int i) { return i; }
double floatsidf (int i) { return i; }
int fixsfsi (float f) { return f; }
int fixdfsi (double d) { return d; }
unsigned int fixunssfsi (float f) { return f; }
unsigned int fixunsdfsi (double d) { return d; }

int fail_count = 0;

int
fail (char *msg)
{
  fail_count++;
  fprintf (stderr, "Test failed: %s\n", msg);
}

int
main()
{
  if (fp_add (1, 1) != 2) fail ("fp_add 1+1");
  if (fp_sub (3, 2) != 1) fail ("fp_sub 3-2");
  if (fp_mul (2, 3) != 6) fail ("fp_mul 2*3");
  if (fp_div (3, 2) != 1.5) fail ("fp_div 3/2");
  if (fp_neg (1) != -1) fail ("fp_neg 1");

  if (dp_add (1, 1) != 2) fail ("dp_add 1+1");
  if (dp_sub (3, 2) != 1) fail ("dp_sub 3-2");
  if (dp_mul (2, 3) != 6) fail ("dp_mul 2*3");
  if (dp_div (3, 2) != 1.5) fail ("dp_div 3/2");
  if (dp_neg (1) != -1) fail ("dp_neg 1");

  if (fp_to_dp (1.5) != 1.5) fail ("fp_to_dp 1.5");
  if (dp_to_fp (1.5) != 1.5) fail ("dp_to_fp 1.5");

  if (floatsisf (1) != 1) fail ("floatsisf 1");
  if (floatsidf (1) != 1) fail ("floatsidf 1");
  if (fixsfsi (1.42) != 1) fail ("fixsfsi 1.42");
  if (fixunssfsi (1.42) != 1) fail ("fixunssfsi 1.42");
  if (fixdfsi (1.42) != 1) fail ("fixdfsi 1.42");
  if (fixunsdfsi (1.42) != 1) fail ("fixunsdfsi 1.42");

  if (eqsf2 (1, 1) == 0) fail ("eqsf2 1==1");
  if (eqsf2 (1, 2) != 0) fail ("eqsf2 1==2");
  if (nesf2 (1, 2) == 0) fail ("nesf2 1!=1");
  if (nesf2 (1, 1) != 0) fail ("nesf2 1!=1");
  if (gtsf2 (2, 1) == 0) fail ("gtsf2 2>1");
  if (gtsf2 (1, 1) != 0) fail ("gtsf2 1>1");
  if (gtsf2 (0, 1) != 0) fail ("gtsf2 0>1");
  if (gesf2 (2, 1) == 0) fail ("gesf2 2>=1");
  if (gesf2 (1, 1) == 0) fail ("gesf2 1>=1");
  if (gesf2 (0, 1) != 0) fail ("gesf2 0>=1");
  if (ltsf2 (1, 2) == 0) fail ("ltsf2 1<2");
  if (ltsf2 (1, 1) != 0) fail ("ltsf2 1<1");
  if (ltsf2 (1, 0) != 0) fail ("ltsf2 1<0");
  if (lesf2 (1, 2) == 0) fail ("lesf2 1<=2");
  if (lesf2 (1, 1) == 0) fail ("lesf2 1<=1");
  if (lesf2 (1, 0) != 0) fail ("lesf2 1<=0");

  if (fail_count != 0)
    abort ();
  exit (0);
}