gcc/testsuite/gcc.dg/tree-ssa/switch-1.c

   1 /* { dg-do compile { target { { x86_64-*-* aarch64-*-* ia64-*-* powerpc64-*-* } && lp64 } } } */
   2 /* { dg-options "-O2 -fdump-tree-switchlower1 --param case-values-threshold=4" } */
   3
   4 int global;
   5
   6 int foo (int x)
   7 {
   8   switch (x) {
   9     case 0:
  10     case 10:
  11     case 1000:
  12     case 1010:
  13     case 1025 ... 1030:
  14       return 1;
  15     default:
  16       return 0;
  17   }
  18 }
  19
  20 /* { dg-final { scan-tree-dump ";; GIMPLE switch case clusters: 0 10 BT:1000-1030" "switchlower1" } } */
  21
  22 int foo2 (int x)
  23 {
  24   switch (x) {
  25     case -100:
  26     case 100:
  27     case 1000:
  28     case 10000:
  29     case 100000:
  30       return 1;
  31     default:
  32       return 0;
  33   }
  34 }
  35
  36 /* { dg-final { scan-tree-dump ";; GIMPLE switch case clusters: -100 100 1000 10000 100000" "switchlower1" } } */
  37
  38 int foo3 (int x)
  39 {
  40   switch (x) {
  41     case 0:
  42     case 10:
  43     case 20:
  44       global += 1;
  45       return 3;
  46     case 30:
  47     case 33 ... 55:
  48     case 57:
  49       return 4;
  50     case 60 ... 62:
  51       return 1;
  52     default:
  53       return 0;
  54   }
  55 }
  56
  57 /* { dg-final { scan-tree-dump ";; GIMPLE switch case clusters: JT:0-62" "switchlower1" } } */
  58
  59 int foo4 (int x)
  60 {
  61   switch (x) {
  62     case -100:
  63     case 10:
  64     case 20:
  65       global += 1;
  66       return 3;
  67     case 30:
  68     case 33 ... 55:
  69     case 57:
  70       return 4;
  71     case 60 ... 62:
  72       return 1;
  73     case 600 ... 700:
  74       return 12;
  75     default:
  76       return 0;
  77   }
  78 }
  79
  80 /* { dg-final { scan-tree-dump ";; GIMPLE switch case clusters: -100 JT:10-62 600-700" "switchlower1" } } */
  81
  82 int foo5 (int x)
  83 {
  84   switch (x) {
  85     case 10:
  86     case 20:
  87       global += 1;
  88       return 3;
  89     case 30:
  90     case 33 ... 55:
  91     case 57:
  92       return 4;
  93     case 60 ... 62:
  94       return 1;
  95     case 600 ... 700:
  96       return 12;
  97     case 1000 ... 1010:
  98     case 1012:
  99       return 333;
 100     case 1019:
 101     case 1021:
 102       return 9;
 103     case 111111:
 104       return 3;
 105     default:
 106       return 0;
 107   }
 108 }
 109
 110 /* { dg-final { scan-tree-dump ";; GIMPLE switch case clusters: JT:10-62 600-700 JT:1000-1021 111111" "switchlower1" } } */