gcc/testsuite/gcc.target/i386/pr57819.c

   1 /* PR target/57819 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -mtune=core2" } */
   4
   5 void foo (void);
   6
   7 __extension__ typedef __INTPTR_TYPE__ intptr_t;
   8
   9 int
  10 test1 (intptr_t x, intptr_t n)
  11 {
  12   n &= sizeof (intptr_t) * __CHAR_BIT__ - 1;
  13
  14   if (x & ((intptr_t) 1 << n))
  15     foo ();
  16
  17   return 0;
  18 }
  19
  20 int
  21 test2 (intptr_t x, intptr_t n)
  22 {
  23   if (x & ((intptr_t) 1 << ((int) n & (sizeof (intptr_t) * __CHAR_BIT__ - 1))))
  24     foo ();
  25
  26   return 0;
  27 }
  28
  29 int
  30 test3 (intptr_t x, intptr_t n)
  31 {
  32   if (x & ((intptr_t) 1 << ((int) n & ((int) sizeof (intptr_t) * __CHAR_BIT__ - 1))))
  33     foo ();
  34
  35   return 0;
  36 }
  37
  38 /* { dg-final { scan-assembler-not "and\[lq\]\[ \t\]" } } */