These 3 patches add support for some new instructions in the 'future' processor.
The first patch adds support for the new byte swap instructions that byte swap valies in the GPRs. The second patch renames some functions from <func>_p9 to <func>_hw. This is in preparation for the third patch that adds support for IEEE 128-bit minimum, maximum, and set compare masks. The third patch implements the new instructions. I have built bootstrap compilers with/without the patches, and there are no regressions. I verified that the two new tests pass. Can I check these into the master branch?
