PR rtl-optimization/27073

	* gcse.c (try_replace_reg): Revert last change.  Continue to search
	for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
	on the former.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@112861 138bc75d-0d04-0410-961f-82ee72b054a4