gcc/testsuite/gcc.dg/builtins-9.c

   1 /* Copyright (C) 2003 Free Software Foundation.
   2
   3    Check that constant folding of built-in math functions doesn't
   4    break anything.
   5
   6    Written by Roger Sayle, 2nd April 2003.  */
   7
   8 /* { dg-do compile } */
   9 /* { dg-options "-O2 -ffast-math" } */
  10
  11 extern double log(double);
  12 extern double exp(double);
  13 extern double sqrt(double);
  14 extern double pow(double,double);
  15
  16 extern float logf(float);
  17 extern float expf(float);
  18 extern float sqrtf(float);
  19 extern float powf(float,float);
  20
  21 extern long double logl(long double);
  22 extern long double expl(long double);
  23 extern long double sqrtl(long double);
  24 extern long double powl(long double,long double);
  25
  26
  27 double test1(double x, double y)
  28 {
  29   return log(pow(x,y));
  30 }
  31
  32 double test2(double x, double y)
  33 {
  34   return sqrt(pow(x,y));
  35 }
  36
  37 double test3(double x, double y)
  38 {
  39   return pow(exp(x),y);
  40 }
  41
  42 double test4(double x, double y)
  43 {
  44   return pow(sqrt(x),y);
  45 }
  46
  47 double test5(double x, double y, double z)
  48 {
  49   return pow(pow(x,y),z);
  50 }
  51
  52
  53 float test1f(float x, float y)
  54 {
  55   return logf(powf(x,y));
  56 }
  57
  58 float test2f(float x, float y)
  59 {
  60   return sqrtf(powf(x,y));
  61 }
  62
  63 float test3f(float x, float y)
  64 {
  65   return powf(expf(x),y);
  66 }
  67
  68 float test4f(float x, float y)
  69 {
  70   return powf(sqrtf(x),y);
  71 }
  72
  73 float test5f(float x, float y, float z)
  74 {
  75   return powf(powf(x,y),z);
  76 }
  77
  78
  79 long double test1l(long double x, long double y)
  80 {
  81   return logl(powl(x,y));
  82 }
  83
  84 long double test2l(long double x, long double y)
  85 {
  86   return sqrtl(powl(x,y));
  87 }
  88
  89 long double test3l(long double x, long double y)
  90 {
  91   return powl(expl(x),y);
  92 }
  93
  94 long double test4l(long double x, long double y)
  95 {
  96   return powl(sqrtl(x),y);
  97 }
  98
  99 long double test5l(long double x, long double y, long double z)
 100 {
 101   return powl(powl(x,y),z);
 102 }
 103