gcc/testsuite/gcc.dg/builtin-bswap-9.c

   1 /* { dg-do compile { target arm*-*-* alpha*-*-* ia64*-*-* i?86-*-* x86_64-*-* s390x-*-* powerpc*-*-* rs6000-*-* } } */
   2 /* { dg-require-effective-target stdint_types } */
   3 /* { dg-require-effective-target lp64 } */
   4 /* { dg-options "-O2 -fdump-rtl-combine" } */
   5
   6 #include <stdint.h>
   7
   8 #define BS(X) __builtin_bswap64(X)
   9
  10 uint64_t foo1 (uint64_t a)
  11 {
  12   return BS (~ BS (a));
  13 }
  14
  15 uint64_t foo2 (uint64_t a)
  16 {
  17   return BS (BS (a) & 0xA00000000);
  18 }
  19
  20 uint64_t foo3 (uint64_t a)
  21 {
  22   return BS (BS (a) | 0xA00000000);
  23 }
  24
  25 uint64_t foo4 (uint64_t a)
  26 {
  27   return BS (BS (a) ^ 0xA00000000);
  28 }
  29
  30 uint64_t foo5 (uint64_t a, uint64_t b)
  31 {
  32   return BS (BS (a) & BS (b));
  33 }
  34
  35 uint64_t foo6 (uint64_t a, uint64_t b)
  36 {
  37   return BS (BS (a) | BS (b));
  38 }
  39
  40 uint64_t foo7 (uint64_t a, uint64_t b)
  41 {
  42   return BS (BS (a) ^ BS (b));
  43 }
  44
  45 /* { dg-final { scan-rtl-dump-not "bswapdi" "combine" } } */