r170986 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Mar 15 12:22:12 2011
New Revision: 170986

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170986
Log:
2011-03-15  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/48037
	* tree-ssa.c (maybe_rewrite_mem_ref_base): Rewrite vector
	selects into BIT_FIELD_REFs.
	(non_rewritable_mem_ref_base): Check if a MEM_REF is a
	vector select.

	* gcc.target/i386/pr48037-1.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr48037-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa.c