gcc/testsuite/gcc.dg/builtin-bswap-8.c

   1 /* { dg-do compile { target arm*-*-* alpha*-*-* i?86-*-* powerpc*-*-* rs6000-*-* x86_64-*-* s390*-*-* } } */
   2 /* { dg-require-effective-target stdint_types } */
   3 /* { dg-options "-O2 -fdump-rtl-combine" } */
   4 /* { dg-options "-O2 -fdump-rtl-combine -march=z900" { target s390-*-* } } */
   5
   6 #include <stdint.h>
   7
   8 #define BS(X) __builtin_bswap32(X)
   9
  10 uint32_t foo1 (uint32_t a)
  11 {
  12   return BS (~ BS (a));
  13 }
  14
  15 uint32_t foo2 (uint32_t a)
  16 {
  17   return BS (BS (a) & 0xA0000);
  18 }
  19
  20 uint32_t foo3 (uint32_t a)
  21 {
  22   return BS (BS (a) | 0xA0000);
  23 }
  24
  25 uint32_t foo4 (uint32_t a)
  26 {
  27   return BS (BS (a) ^ 0xA0000);
  28 }
  29
  30 uint32_t foo5 (uint32_t a, uint32_t b)
  31 {
  32   return BS (BS (a) & BS (b));
  33 }
  34
  35 uint32_t foo6 (uint32_t a, uint32_t b)
  36 {
  37   return BS (BS (a) | BS (b));
  38 }
  39
  40 uint32_t foo7 (uint32_t a, uint32_t b)
  41 {
  42   return BS (BS (a) ^ BS (b));
  43 }
  44
  45 /* { dg-final { scan-rtl-dump-not "bswapsi" "combine" } } */