gcc/testsuite/gcc.dg/20050922-2.c

   1 /* 20050922-1.c does not trigger the expand_shift rotate bug on sh4-elf, but
   2    this does.  */
   3
   4 /* { dg-do run } */
   5 /* { dg-options "-O1 -std=c99" } */
   6
   7 #include <stdlib.h>
   8
   9 #if __INT_MAX__ == 2147483647
  10 typedef unsigned int uint32_t;
  11 #elif __LONG_MAX__ == 2147483647
  12 typedef unsigned long uint32_t;
  13 #else
  14 #error unable to find 32-bit integer type
  15 #endif
  16
  17 #define rotl(x,n)   (((x) << ((int)(n))) | ((x) >> (32 - (int)(n))))
  18
  19 uint32_t
  20 f (uint32_t a, uint32_t b)
  21 {
  22
  23   b = rotl (a, b & 31);
  24   return b;
  25 }
  26
  27 int
  28 main ()
  29 {
  30   if (f(2,31) != 1)
  31     abort ();
  32   exit (0);
  33 }