gcc/testsuite/c-c++-common/rotate-8.c

   1 /* PR middle-end/62263 */
   2 /* PR middle-end/82498 */
   3 /* { dg-do compile } */
   4 /* { dg-options "-O2 -fno-ipa-icf -fdump-tree-optimized" } */
   5 /* { dg-final { scan-tree-dump-times "r\[<>]\[<>]" 23 "optimized" } } */
   6 /* { dg-final { scan-tree-dump-not "PHI <" "optimized" } } */
   7
   8 #if __SIZEOF_INT__ == 2
   9 #define LARGE_UNSIGNED 0x1234U
  10 #else
  11 #define LARGE_UNSIGNED 0x12345678U
  12 #endif
  13
  14 unsigned int
  15 f1 (unsigned int x, unsigned char y)
  16 {
  17   y %= __CHAR_BIT__ * __SIZEOF_INT__;
  18   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
  19 }
  20
  21 unsigned int
  22 f2 (unsigned int x, signed char y)
  23 {
  24   y &= __CHAR_BIT__ * __SIZEOF_INT__ - 1;
  25   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
  26 }
  27
  28 unsigned int
  29 f3 (unsigned int x, unsigned char y)
  30 {
  31   return (x << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))));
  32 }
  33
  34 unsigned int
  35 f4 (unsigned int x, unsigned char y)
  36 {
  37   y = y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1);
  38   return y ? (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y)) : x;
  39 }
  40
  41 unsigned int
  42 f5 (unsigned int x, unsigned char y)
  43 {
  44   y = y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1);
  45   return (x << y) | (x >> ((__CHAR_BIT__ * __SIZEOF_INT__ - y) & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  46 }
  47
  48 unsigned int
  49 f6 (unsigned int x, unsigned char y)
  50 {
  51   return (x << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (x >> ((__CHAR_BIT__ * __SIZEOF_INT__ - (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  52 }
  53
  54 unsigned int
  55 f7 (unsigned int x, unsigned char y)
  56 {
  57   return (x << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (x >> ((__CHAR_BIT__ * __SIZEOF_INT__ - y) & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  58 }
  59
  60 unsigned int
  61 f8 (unsigned int x, unsigned char y)
  62 {
  63   return (x << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (x >> ((-y) & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  64 }
  65
  66 unsigned int
  67 f9 (unsigned int x, int y)
  68 {
  69   return (LARGE_UNSIGNED << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (LARGE_UNSIGNED >> (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  70 }
  71
  72 unsigned int
  73 f10 (unsigned int x, int y)
  74 {
  75   return (LARGE_UNSIGNED >> (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (LARGE_UNSIGNED << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  76 }
  77
  78 unsigned int
  79 f11 (unsigned int x, int y)
  80 {
  81   return (LARGE_UNSIGNED >> (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (LARGE_UNSIGNED << (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  82 }
  83
  84 unsigned int
  85 f12 (unsigned int x, int y)
  86 {
  87   return (LARGE_UNSIGNED << (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (LARGE_UNSIGNED >> (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  88 }
  89
  90 unsigned
  91 f13 (unsigned x, unsigned char y)
  92 {
  93   if (y == 0)
  94     return x;
  95   y %= __CHAR_BIT__ * __SIZEOF_INT__;
  96   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
  97 }
  98
  99 unsigned
 100 f14 (unsigned x, unsigned y)
 101 {
 102   if (y == 0)
 103     return x;
 104   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 105   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 106 }
 107
 108 unsigned
 109 f15 (unsigned x, unsigned short y)
 110 {
 111   if (y == 0)
 112     return x;
 113   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 114   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 115 }
 116
 117 unsigned
 118 f16 (unsigned x, unsigned char y)
 119 {
 120   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 121   if (y == 0)
 122     return x;
 123   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 124 }
 125
 126 unsigned
 127 f17 (unsigned x, unsigned y)
 128 {
 129   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 130   if (y == 0)
 131     return x;
 132   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 133 }
 134
 135 unsigned
 136 f18 (unsigned x, unsigned short y)
 137 {
 138   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 139   if (y == 0)
 140     return x;
 141   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 142 }
 143
 144 unsigned
 145 f19 (unsigned x, unsigned char y)
 146 {
 147   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 148   return (x << y) | (x >> (((unsigned char) -y) % (__CHAR_BIT__ * __SIZEOF_INT__)));
 149 }
 150
 151 unsigned
 152 f20 (unsigned x, unsigned int y)
 153 {
 154   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 155   return (x << y) | (x >> (-y % (__CHAR_BIT__ * __SIZEOF_INT__)));
 156 }
 157
 158 unsigned
 159 f21 (unsigned x, unsigned short y)
 160 {
 161   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 162   return (x << y) | (x >> (((unsigned short) -y) % (__CHAR_BIT__ * __SIZEOF_INT__)));
 163 }
 164
 165 unsigned
 166 f22 (unsigned x, unsigned char y)
 167 {
 168   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 169   return (x << y) | (x >> (-y & ((__CHAR_BIT__ * __SIZEOF_INT__) - 1)));
 170 }
 171
 172 unsigned
 173 f23 (unsigned x, unsigned short y)
 174 {
 175   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 176   return (x << y) | (x >> (-y & ((__CHAR_BIT__ * __SIZEOF_INT__) - 1)));
 177 }