2006-09-01 J"orn Rennecke <joern.rennecke@st.com>

	Richard Guenther  <rguenther@suse.de>
	Adam Nemet  <anemet@caviumnetworks.com>

	PR middle-end/27226
	* builtins.c (get_pointer_alignment): Handle more forms
	of base addresses that can be used to derive more precise
	information about alignment.

	* gcc.target/mips/memcpy-1.c: New testcase.
	* gcc.dg/pr27226.c: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116641 138bc75d-0d04-0410-961f-82ee72b054a4