gcc/testsuite/g++.dg/cdce3.C

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target c99_runtime } */
   3 /* { dg-options "-O2 -fmath-errno -fdump-tree-cdce-details -lm" } */
   4 /* { dg-additional-options "-DLARGE_LONG_DOUBLE" { target large_long_double } } */
   5 /* { dg-additional-options "-DGNU_EXTENSION" { target pow10 } } */
   6 /* { dg-add-options ieee } */
   7 /* { dg-final { scan-tree-dump  "cdce3.C:92: note: function call is shrink-wrapped into error conditions\." "cdce" { target pow10 } } } */
   8 /* { dg-final { scan-tree-dump  "cdce3.C:93: note: function call is shrink-wrapped into error conditions\." "cdce" { target pow10 } } } */
   9 /* { dg-final { scan-tree-dump  "cdce3.C:95: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  10 /* { dg-final { scan-tree-dump  "cdce3.C:96: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  11 /* { dg-final { scan-tree-dump  "cdce3.C:97: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  12 /* { dg-final { scan-tree-dump  "cdce3.C:98: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  13 /* { dg-final { scan-tree-dump  "cdce3.C:99: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  14 /* { dg-final { scan-tree-dump  "cdce3.C:100: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  15 /* { dg-final { scan-tree-dump  "cdce3.C:101: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  16 /* { dg-final { scan-tree-dump  "cdce3.C:102: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  17 /* { dg-final { scan-tree-dump  "cdce3.C:103: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  18 /* { dg-final { scan-tree-dump  "cdce3.C:104: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  19 /* { dg-final { scan-tree-dump  "cdce3.C:105: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  20 /* { dg-final { scan-tree-dump  "cdce3.C:106: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  21 /* { dg-final { scan-tree-dump  "cdce3.C:107: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  22 /* { dg-final { scan-tree-dump  "cdce3.C:108: note: function call is shrink-wrapped into error conditions\." "cdce" } } */
  23 /* { dg-final { cleanup-tree-dump "cdce" } } */
  24
  25 #include <stdlib.h>
  26 #include <math.h>
  27 #ifdef DEBUG
  28 #include <stdio.h>
  29 #endif
  30 #include <errno.h>
  31 typedef void (*FP) (int xp);
  32 #define NI __attribute__((noinline))
  33
  34 #if defined(LARGE_LONG_DOUBLE)
  35 typedef long double ldouble;
  36 ldouble result;
  37
  38 #define DEF_MATH_FUNC(prefix, name) NI void prefix##name##f (int x) \
  39 { \
  40   float yy = name##f ((float) x); \
  41   STORE_RESULT; \
  42 } \
  43 NI void prefix##name (int x) \
  44 { \
  45   double yy = name ((double)x); \
  46   STORE_RESULT; \
  47 } \
  48 NI void prefix##name##l (int x) \
  49 { \
  50   ldouble yy = name##l ((ldouble)x); \
  51   STORE_RESULT; \
  52 }
  53 #else
  54 double result;
  55
  56 #define DEF_MATH_FUNC(prefix, name) NI void prefix##name##f (int x) \
  57 { \
  58   float yy = name##f ((float) x); \
  59   STORE_RESULT; \
  60 } \
  61 NI void prefix##name (int x) \
  62 { \
  63   double yy = name ((double)x); \
  64   STORE_RESULT; \
  65 }
  66 #endif
  67
  68 #undef STORE_RESULT
  69 #define STORE_RESULT result = yy
  70 #if defined(GNU_EXTENSION)
  71 DEF_MATH_FUNC (m,pow10)
  72 DEF_MATH_FUNC (m,exp10)
  73 #endif
  74 DEF_MATH_FUNC (m,exp2)
  75 DEF_MATH_FUNC (m,exp)
  76 DEF_MATH_FUNC (m,expm1)
  77 DEF_MATH_FUNC (m,cosh)
  78 DEF_MATH_FUNC (m,sinh)
  79 DEF_MATH_FUNC (m,acos)
  80 DEF_MATH_FUNC (m,asin)
  81 DEF_MATH_FUNC (m,acosh)
  82 DEF_MATH_FUNC (m,atanh)
  83 DEF_MATH_FUNC (m,log)
  84 DEF_MATH_FUNC (m,log2)
  85 DEF_MATH_FUNC (m,log10)
  86 DEF_MATH_FUNC (m,log1p)
  87 DEF_MATH_FUNC (m,sqrt)
  88
  89 #undef STORE_RESULT
  90 #define STORE_RESULT
  91 #if defined(GNU_EXTENSION)
  92 DEF_MATH_FUNC (o,pow10)
  93 DEF_MATH_FUNC (o,exp10)
  94 #endif
  95 DEF_MATH_FUNC (o,exp2)
  96 DEF_MATH_FUNC (o,exp)
  97 DEF_MATH_FUNC (o,expm1)
  98 DEF_MATH_FUNC (o,cosh)
  99 DEF_MATH_FUNC (o,sinh)
 100 DEF_MATH_FUNC (o,acos)
 101 DEF_MATH_FUNC (o,asin)
 102 DEF_MATH_FUNC (o,acosh)
 103 DEF_MATH_FUNC (o,atanh)
 104 DEF_MATH_FUNC (o,log)
 105 DEF_MATH_FUNC (o,log2)
 106 DEF_MATH_FUNC (o,log10)
 107 DEF_MATH_FUNC (o,log1p)
 108 DEF_MATH_FUNC (o,sqrt)
 109
 110 #if defined(LARGE_LONG_DOUBLE)
 111 #define INIT_MATH_FUNC(prefix, name, lb, ub) { prefix##name##f, #name "f", 0, 0, lb, ub }, \
 112 { prefix##name, #name, 0, 0, lb, ub }, \
 113 { prefix##name##l, #name "l" , 0, 0, lb, ub },
 114 #else
 115 #define INIT_MATH_FUNC(prefix, name, lb, ub) { prefix##name##f, #name "f", 0, 0, lb, ub }, \
 116 { prefix##name, #name, 0, 0, lb, ub },
 117 #endif
 118
 119 struct MathFuncInfo
 120 {
 121   FP math_func;
 122   const char*  name;
 123   int lb;
 124   int ub;
 125   bool has_lb;
 126   bool has_ub;
 127 } math_func_arr[] = {
 128 #if defined(GNU_EXTENSION)
 129   INIT_MATH_FUNC (m,pow10, false, true)
 130   INIT_MATH_FUNC (m,exp10, false, true)
 131 #endif
 132   INIT_MATH_FUNC (m,exp2, false, true)
 133   INIT_MATH_FUNC (m,expm1, false, true)
 134   INIT_MATH_FUNC (m,exp, false, true)
 135   INIT_MATH_FUNC (m,cosh, true, true)
 136   INIT_MATH_FUNC (m,sinh, true, true)
 137   INIT_MATH_FUNC (m,acos, true, true)
 138   INIT_MATH_FUNC (m,asin, true, true)
 139   INIT_MATH_FUNC (m,acosh, true, false)
 140   INIT_MATH_FUNC (m,atanh, true, true)
 141   INIT_MATH_FUNC (m,log10, true, false)
 142   INIT_MATH_FUNC (m,log, true, false)
 143   INIT_MATH_FUNC (m,log2, true, false)
 144   INIT_MATH_FUNC (m,log1p, true, false)
 145   INIT_MATH_FUNC (m,sqrt, true, false)
 146   { 0, 0,  0, 0, 0, 0} };
 147
 148 MathFuncInfo opt_math_func_arr[] =
 149 {
 150 #if defined(GNU_EXTENSION)
 151   INIT_MATH_FUNC (o,pow10, false, true)
 152   INIT_MATH_FUNC (o,exp10, false, true)
 153 #endif
 154   INIT_MATH_FUNC (o,exp2, false, true)
 155   INIT_MATH_FUNC (o,expm1, false, true)
 156   INIT_MATH_FUNC (o,exp, false, true)
 157   INIT_MATH_FUNC (o,cosh, true, true)
 158   INIT_MATH_FUNC (o,sinh, true, true)
 159   INIT_MATH_FUNC (o,acos, true, true)
 160   INIT_MATH_FUNC (o,asin, true, true)
 161   INIT_MATH_FUNC (o,acosh, true, false)
 162   INIT_MATH_FUNC (o,atanh, true, true)
 163   INIT_MATH_FUNC (o,log10, true, false)
 164   INIT_MATH_FUNC (o,log, true, false)
 165   INIT_MATH_FUNC (o,log2, true, false)
 166   INIT_MATH_FUNC (o,log1p, true, false)
 167   INIT_MATH_FUNC (o,sqrt, true, false)
 168   { 0, 0,  0, 0, 0, 0} };
 169
 170 int test (MathFuncInfo* math_func_infos)
 171 {
 172   int i = 0;
 173   int te = 0;
 174
 175   for (i = 0; math_func_infos[i].math_func; i++)
 176     {
 177       MathFuncInfo& info = math_func_infos[i];
 178       int j;
 179       if (info.has_lb)
 180         {
 181           for (j = 0; j > -500000; j--)
 182             {
 183
 184               errno = 0;
 185               info.math_func (j);
 186               if (errno != 0)
 187                 {
 188                   te++;
 189                   info.lb = j ;
 190                   break;
 191                 }
 192             }
 193         }
 194       if (info.has_ub)
 195         {
 196           for (j = 0; j < 500000; j++)
 197             {
 198               errno = 0;
 199               info.math_func (j);
 200               if (errno != 0)
 201               {
 202                 te++;
 203                 info.ub = j ;
 204                 break;
 205               }
 206             }
 207         }
 208     }
 209   return te;
 210 }
 211
 212 int main()
 213 {
 214    int te1, te2;
 215
 216    te1 = test (&math_func_arr[0]);
 217    te2 = test (&opt_math_func_arr[0]);
 218
 219    // Now examine the result
 220    int i = 0;
 221    int errcnt = 0;
 222    for (i = 0; math_func_arr[i].math_func; i++)
 223    {
 224       MathFuncInfo& info = math_func_arr[i];
 225       MathFuncInfo& opt_info = opt_math_func_arr[i];
 226 #ifdef DEBUG
 227       fprintf (stderr," %s: lb = %d, ub = %d: lb_opt = %d, ub_opt = %d\n",
 228         info.name, info.lb, info.ub, opt_info.lb, opt_info.ub);
 229 #endif
 230       if (info.lb != opt_info.lb) errcnt ++;
 231       if (info.ub != opt_info.ub) errcnt ++;
 232    }
 233    if (errcnt) abort();
 234    return 0;
 235 }