[Bug tree-optimization/40210] gcc needs byte swap builtins

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2009-05-20 19:01 -------
http://gcc.gnu.org/onlinedocs/gcc-4.3.0/gcc/Other-Builtins.html#Other-Builtins


— Built-in Function: int32_t __builtin_bswap32 (int32_t x)
Returns x with the order of the bytes reversed; for example, 0xaabbccdd becomes
0xddccbbaa. Byte here always means exactly 8 bits.

— Built-in Function: int64_t __builtin_bswap64 (int64_t x)
Similar to __builtin_bswap32, except the argument and return types are 64-bit.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40210