* config/mips/mips.md (*zero_extend<mode>_trunchi,

	*zero_extend<mode>_truncqi): Merge these into ...
	(*zero_extend<GPR:mode>_trunc<SHORT:mode>): ... this new pattern.
	Name the pattern following this as *zero_extendhi_truncqi.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@147630 138bc75d-0d04-0410-961f-82ee72b054a4