memcheck/tests/amd64/bug132146.c

   1
   2 #include <stdio.h>
   3
   4 typedef unsigned int UInt;
   5 typedef unsigned long long ULong;
   6
   7 #if defined(__x86_64__)
   8
   9 #define BSWAPQ(_lval) \
  10   do { \
  11   __asm__ __volatile__("bswapq %0" \
  12                        : /*out*/ "+r"(_lval) ); \
  13   } while (0)
  14
  15 ULong bswapq ( ULong x )
  16 {
  17   BSWAPQ(x); BSWAPQ(x);
  18   BSWAPQ(x); BSWAPQ(x);
  19   BSWAPQ(x); BSWAPQ(x);
  20   BSWAPQ(x); BSWAPQ(x);
  21   BSWAPQ(x); BSWAPQ(x);
  22   BSWAPQ(x); BSWAPQ(x);
  23   BSWAPQ(x); BSWAPQ(x);
  24   BSWAPQ(x); BSWAPQ(x);
  25   BSWAPQ(x); BSWAPQ(x);
  26   BSWAPQ(x); BSWAPQ(x);
  27   BSWAPQ(x); BSWAPQ(x);
  28   BSWAPQ(x); BSWAPQ(x);
  29   BSWAPQ(x); BSWAPQ(x);
  30   BSWAPQ(x); BSWAPQ(x);
  31   BSWAPQ(x); BSWAPQ(x);
  32   BSWAPQ(x); BSWAPQ(x);
  33   BSWAPQ(x); BSWAPQ(x);
  34   BSWAPQ(x); BSWAPQ(x);
  35   BSWAPQ(x); BSWAPQ(x);
  36   BSWAPQ(x); BSWAPQ(x);
  37   BSWAPQ(x); BSWAPQ(x);
  38   BSWAPQ(x); BSWAPQ(x);
  39   BSWAPQ(x); BSWAPQ(x);
  40   BSWAPQ(x); BSWAPQ(x);
  41   BSWAPQ(x); BSWAPQ(x);
  42   BSWAPQ(x); BSWAPQ(x);
  43   BSWAPQ(x); BSWAPQ(x);
  44   BSWAPQ(x); BSWAPQ(x);
  45   BSWAPQ(x); BSWAPQ(x);
  46   BSWAPQ(x); BSWAPQ(x);
  47   BSWAPQ(x); BSWAPQ(x);
  48   BSWAPQ(x); BSWAPQ(x);
  49   BSWAPQ(x);
  50   return x;
  51 }
  52
  53 #endif /* defined(__x86_64__) */
  54
  55 #define BSWAPL(_lval) \
  56   do { \
  57   __asm__ __volatile__("bswapl %0" \
  58                        : /*out*/ "+r"(_lval) ); \
  59   } while (0)
  60
  61 UInt bswapl ( UInt x )
  62 {
  63   BSWAPL(x); BSWAPL(x);
  64   BSWAPL(x); BSWAPL(x);
  65   BSWAPL(x); BSWAPL(x);
  66   BSWAPL(x); BSWAPL(x);
  67   BSWAPL(x); BSWAPL(x);
  68   BSWAPL(x); BSWAPL(x);
  69   BSWAPL(x); BSWAPL(x);
  70   BSWAPL(x); BSWAPL(x);
  71   BSWAPL(x); BSWAPL(x);
  72   BSWAPL(x); BSWAPL(x);
  73   BSWAPL(x); BSWAPL(x);
  74   BSWAPL(x); BSWAPL(x);
  75   BSWAPL(x); BSWAPL(x);
  76   BSWAPL(x); BSWAPL(x);
  77   BSWAPL(x); BSWAPL(x);
  78   BSWAPL(x); BSWAPL(x);
  79   BSWAPL(x); BSWAPL(x);
  80   BSWAPL(x); BSWAPL(x);
  81   BSWAPL(x); BSWAPL(x);
  82   BSWAPL(x); BSWAPL(x);
  83   BSWAPL(x); BSWAPL(x);
  84   BSWAPL(x); BSWAPL(x);
  85   BSWAPL(x); BSWAPL(x);
  86   BSWAPL(x); BSWAPL(x);
  87   BSWAPL(x); BSWAPL(x);
  88   BSWAPL(x); BSWAPL(x);
  89   BSWAPL(x); BSWAPL(x);
  90   BSWAPL(x); BSWAPL(x);
  91   BSWAPL(x); BSWAPL(x);
  92   BSWAPL(x); BSWAPL(x);
  93   BSWAPL(x); BSWAPL(x);
  94   BSWAPL(x); BSWAPL(x);
  95   BSWAPL(x);
  96   return x;
  97 }
  98
  99 int main ( void )
 100 {
 101 #if defined(__x86_64__)
 102    printf("0x%llx\n", bswapq( 0x8877665544332211ULL ));
 103 #endif
 104    printf("0x%x\n", bswapl( 0x44332211ULL ));
 105    return 0;
 106 }