Add support for GCC's byteswap builtins. They were added in 4.3 and work for 32 and 64 bit integers. Using these instead of inline asm may offer better scheduling on x86, and additionally offers native byteswapping on other platforms (PPC, ARM, etc).
Add support for GCC's byteswap builtins. They were added in 4.3 and
work for 32 and 64 bit integers. Using these instead of inline asm may
offer better scheduling on x86, and additionally offers native
byteswapping on other platforms (PPC, ARM, etc).

Rohde-Schwarz-Cybersecurity/botan,randombit/botan,randombit/botan,Rohde-Schwarz-Cybersecurity/botan,webmaster128/botan,randombit/botan,Rohde-Schwarz-Cybersecurity/botan,webmaster128/botan,webmaster128/botan,randombit/botan,Rohde-Schwarz-Cybersecurity/botan,webmaster128/botan,randombit/botan,Rohde-Schwarz-Cybersecurity/botan,Rohde-Schwarz-Cybersecurity/botan,webmaster128/botan