mcs/tests/test-172.cs

   1 //
   2 // This test excercises a few new optimizations that were entered in the context
   3 // of Binary operators and EmitBranchable.
   4 //
   5 // There are a number of cases:
   6 //
   7 //   EmitBranchable can be called with an `onTrue' (false for if, true for loops).
   8 //
   9 //   The == and != operators handle the Null compares specially
  10 using System;
  11
  12 class X {
  13         static int one = 1;
  14         static int two = 2;
  15         static int three = 3;
  16         static int four = 4;
  17         static bool t = true;
  18         static bool f = false;
  19
  20         static int fcalls = 0;
  21         static int tcalls = 0;
  22
  23         static bool ff ()
  24         {
  25                 fcalls++;
  26                 return false;
  27         }
  28
  29         static bool tt ()
  30         {
  31                 tcalls++;
  32                 return true;
  33         }
  34
  35         static int test_if ()
  36         {
  37                 //
  38                 // Ands in the if context
  39                 //
  40                 if (f && f)
  41                         return 1;
  42                 if (t && f)
  43                         return 2;
  44                 if (f && t)
  45                         return 3;
  46
  47                 if (one < two && f)
  48                         return 4;
  49                 if (one > two && t)
  50                         return 5;
  51                 if (one < two && t)
  52                         Console.WriteLine ("");
  53
  54                 if (ff () && ff ())
  55                         return 6;
  56                 if (fcalls != 1)
  57                         return 10;
  58
  59                 if (tt () && tt ()){
  60                         if (tcalls != 2)
  61                                 return 11;
  62
  63                         if (tt () && ff ())
  64                                 return 8;
  65                         if (tcalls != 3)
  66                                 return 12;
  67                         if (fcalls != 2)
  68                                 return 13;
  69                         if (ff () && tt ())
  70                                 return 9;
  71                         if (fcalls != 3)
  72                                 return 14;
  73                         if (tcalls != 3)
  74                                 return 15;
  75                 } else
  76                         return 7;
  77
  78                 if (one < two && four > three){
  79                         if (one == one && two != three){
  80
  81                         } else
  82                                 return 20;
  83                 } else
  84                         return 21;
  85
  86                 if (one == two || two != two)
  87                         return 22;
  88
  89                 object o = null;
  90
  91                 if (o == null || false){
  92                         o = 1;
  93
  94                         if (o != null || false)
  95                                 o = null;
  96                         else
  97                                 return 23;
  98
  99                         if (true || o == null){
 100                                 if (o != null || o == null){
 101                                         if (o == null && o != null)
 102                                                 return 25;
 103                                         if (o == null && one == two)
 104                                                 return 26;
 105                                         if (one == one && o != null)
 106                                                 return 27;
 107                                         o = 1;
 108                                         if (two == two && o == null)
 109                                                 return 28;
 110                                         return 0;
 111                                 }
 112                                 return 25;
 113                         }
 114                         return 26;
 115                 }
 116                 return 27;
 117         }
 118
 119         //
 120         // This tests emitbranchable with an `onTrue' set to tru
 121         //
 122         static int test_while ()
 123         {
 124                 int count = 0;
 125
 126                 while (t && t){
 127                         count++;
 128                         break;
 129                 }
 130
 131                 if (count != 1)
 132                         return 1;
 133
 134                 while (f || t){
 135                         count++; break;
 136                 }
 137                 if (count != 2)
 138                         return 2;
 139                 while (f || f){
 140                         count++; break;
 141                 }
 142                 if (count != 2)
 143                         return 3;
 144
 145                 while (one < two && two > one){
 146                         count++;
 147                         break;
 148                 }
 149                 if (count != 3)
 150                         return 4;
 151
 152                 while (one < one || two > one){
 153                         count++;
 154                         break;
 155                 }
 156                 if (count != 4)
 157                         return 5;
 158
 159                 while (one < one || two > two){
 160                         count++;
 161                         break;
 162                 }
 163                 if (count != 4)
 164                         return 6;
 165
 166                 while (one < two && t){
 167                         count++;
 168                         break;
 169                 }
 170                 if (count != 5)
 171                         return 7;
 172
 173                 while (one < one || t){
 174                         count++;
 175                         break;
 176                 }
 177                 if (count != 6)
 178                         return 8;
 179
 180                 while (one < one || f){
 181                         count++;
 182                         break;
 183                 }
 184
 185                 if (count != 6)
 186                         return 9;
 187
 188                 return 0;
 189         }
 190
 191         static int test_inline ()
 192         {
 193                 bool lt = t || f;
 194
 195                 if (!lt)
 196                         return 1;
 197
 198                 return 0;
 199         }
 200
 201         public static int Main ()
 202         {
 203                 int v;
 204                 object o = null;
 205
 206                 if (o == null || false)
 207                         o = 1;
 208                 else
 209                         o = 2;
 210
 211                 Console.WriteLine ("V: "+ o);
 212
 213                 v = test_if ();
 214                 if (v != 0)
 215                         return v;
 216                 v = test_inline ();
 217                 if (v != 0)
 218                         return 30 + v;
 219
 220                 v = test_while ();
 221                 if (v != 0)
 222                         return 90 + v;
 223
 224                 Console.WriteLine ("test ok");
 225                 return 0;
 226         }
 227 }
 228