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 unsigned int
   9 f1 (unsigned int x, unsigned char y)
  10 {
  11   y %= __CHAR_BIT__ * __SIZEOF_INT__;
  12   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
  13 }
  14
  15 unsigned int
  16 f2 (unsigned int x, signed char y)
  17 {
  18   y &= __CHAR_BIT__ * __SIZEOF_INT__ - 1;
  19   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
  20 }
  21
  22 unsigned int
  23 f3 (unsigned int x, unsigned char y)
  24 {
  25   return (x << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))));
  26 }
  27
  28 unsigned int
  29 f4 (unsigned int x, unsigned char y)
  30 {
  31   y = y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1);
  32   return y ? (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y)) : x;
  33 }
  34
  35 unsigned int
  36 f5 (unsigned int x, unsigned char y)
  37 {
  38   y = y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1);
  39   return (x << y) | (x >> ((__CHAR_BIT__ * __SIZEOF_INT__ - y) & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  40 }
  41
  42 unsigned int
  43 f6 (unsigned int x, unsigned char y)
  44 {
  45   return (x << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (x >> ((__CHAR_BIT__ * __SIZEOF_INT__ - (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  46 }
  47
  48 unsigned int
  49 f7 (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)));
  52 }
  53
  54 unsigned int
  55 f8 (unsigned int x, unsigned char y)
  56 {
  57   return (x << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (x >> ((-y) & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  58 }
  59
  60 unsigned int
  61 f9 (unsigned int x, int y)
  62 {
  63   return (0x12345678U << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (0x12345678U >> (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  64 }
  65
  66 unsigned int
  67 f10 (unsigned int x, int y)
  68 {
  69   return (0x12345678U >> (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (0x12345678U << (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  70 }
  71
  72 unsigned int
  73 f11 (unsigned int x, int y)
  74 {
  75   return (0x12345678U >> (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (0x12345678U << (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  76 }
  77
  78 unsigned int
  79 f12 (unsigned int x, int y)
  80 {
  81   return (0x12345678U << (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (0x12345678U >> (y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  82 }
  83
  84 unsigned
  85 f13 (unsigned x, unsigned char y)
  86 {
  87   if (y == 0)
  88     return x;
  89   y %= __CHAR_BIT__ * __SIZEOF_INT__;
  90   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
  91 }
  92
  93 unsigned
  94 f14 (unsigned x, unsigned y)
  95 {
  96   if (y == 0)
  97     return x;
  98   y %= __CHAR_BIT__ * __SIZEOF_INT__;
  99   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 100 }
 101
 102 unsigned
 103 f15 (unsigned x, unsigned short y)
 104 {
 105   if (y == 0)
 106     return x;
 107   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 108   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 109 }
 110
 111 unsigned
 112 f16 (unsigned x, unsigned char y)
 113 {
 114   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 115   if (y == 0)
 116     return x;
 117   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 118 }
 119
 120 unsigned
 121 f17 (unsigned x, unsigned y)
 122 {
 123   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 124   if (y == 0)
 125     return x;
 126   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 127 }
 128
 129 unsigned
 130 f18 (unsigned x, unsigned short y)
 131 {
 132   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 133   if (y == 0)
 134     return x;
 135   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
 136 }
 137
 138 unsigned
 139 f19 (unsigned x, unsigned char y)
 140 {
 141   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 142   return (x << y) | (x >> (((unsigned char) -y) % (__CHAR_BIT__ * __SIZEOF_INT__)));
 143 }
 144
 145 unsigned
 146 f20 (unsigned x, unsigned int y)
 147 {
 148   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 149   return (x << y) | (x >> (-y % (__CHAR_BIT__ * __SIZEOF_INT__)));
 150 }
 151
 152 unsigned
 153 f21 (unsigned x, unsigned short y)
 154 {
 155   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 156   return (x << y) | (x >> (((unsigned short) -y) % (__CHAR_BIT__ * __SIZEOF_INT__)));
 157 }
 158
 159 unsigned
 160 f22 (unsigned x, unsigned char y)
 161 {
 162   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 163   return (x << y) | (x >> (-y & ((__CHAR_BIT__ * __SIZEOF_INT__) - 1)));
 164 }
 165
 166 unsigned
 167 f23 (unsigned x, unsigned short y)
 168 {
 169   y %= __CHAR_BIT__ * __SIZEOF_INT__;
 170   return (x << y) | (x >> (-y & ((__CHAR_BIT__ * __SIZEOF_INT__) - 1)));
 171 }