gcc/testsuite/gcc.dg/pr21643.c

   1 /* PR tree-optimization/21643 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-reassoc1-details" } */
   4 /* { dg-additional-options "-mbranch-cost=2" { target branch_cost } } */
   5
   6 int
   7 f1 (unsigned char c)
   8 {
   9   if (c == 0x22 || c == 0x20 || c < 0x20)
  10     return 1;
  11   return 0;
  12 }
  13
  14 int
  15 f2 (unsigned char c)
  16 {
  17   if (c == 0x22 || c <= 0x20)
  18     return 1;
  19   return 0;
  20 }
  21
  22 int
  23 f3 (unsigned char c)
  24 {
  25   if (c == 0x22)
  26     return 1;
  27   if (c == 0x20)
  28     return 1;
  29   if (c < 0x20)
  30     return 1;
  31   return 0;
  32 }
  33
  34 int
  35 f4 (unsigned char c)
  36 {
  37   if (c == 0x22 || c == 0x20 || c < 0x20)
  38     return 2;
  39   return 0;
  40 }
  41
  42 int
  43 f5 (unsigned char c)
  44 {
  45   if (c == 0x22 || c <= 0x20)
  46     return 2;
  47   return 0;
  48 }
  49
  50 int
  51 f6 (unsigned char c)
  52 {
  53   if (c == 0x22)
  54     return 2;
  55   if (c == 0x20)
  56     return 2;
  57   if (c < 0x20)
  58     return 2;
  59   return 0;
  60 }
  61
  62 int
  63 f7 (unsigned char c)
  64 {
  65   if (c != 0x22 && c != 0x20 && c >= 0x20)
  66     return 0;
  67   return 1;
  68 }
  69
  70 int
  71 f8 (unsigned char c)
  72 {
  73   if (c == 0x22 && c <= 0x20)
  74     return 0;
  75   return 1;
  76 }
  77
  78 int
  79 f9 (unsigned char c)
  80 {
  81   if (c == 0x22)
  82     return 0;
  83   if (c == 0x20)
  84     return 0;
  85   if (c < 0x20)
  86     return 0;
  87   return 1;
  88 }
  89
  90 /* { dg-final { scan-tree-dump-times "Optimizing range tests c_\[0-9\]*.D. -.0, 31. and -.32, 32.\[\n\r\]* into" 6 "reassoc1" } } */