r190295 - in /branches/gcc-4_7-branch/gcc: Chan...

[uweigand at gcc dot gnu dot org]

Author: uweigand
Date: Fri Aug 10 13:21:31 2012
New Revision: 190295

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190295
Log:
ChangeLog:

	Backport from mainline
	2012-07-30  Ulrich Weigand  <ulrich.weigand@linaro.org>
		    Richard Earnshaw  <rearnsha@arm.com>

	* target.def (vector_alignment): New target hook.
	* doc/tm.texi.in (TARGET_VECTOR_ALIGNMENT): Document new hook.
	* doc/tm.texi: Regenerate.
	* targhooks.c (default_vector_alignment): New function.
	* targhooks.h (default_vector_alignment): Add prototype.
	* stor-layout.c (layout_type): Use targetm.vector_alignment.
	* config/arm/arm.c (arm_vector_alignment): New function.
	(TARGET_VECTOR_ALIGNMENT): Define.

	* tree-vect-data-refs.c (vect_update_misalignment_for_peel): Use
	vector type alignment instead of size.
	* tree-vect-loop-manip.c (vect_do_peeling_for_loop_bound): Use
	element type size directly instead of computing it from alignment.
	Fix variable naming and comment.


testsuite/ChangeLog:

	Backport from mainline
	2012-07-30  Ulrich Weigand  <ulrich.weigand@linaro.org>

	* lib/target-supports.exp
	(check_effective_target_vect_natural_alignment): New function.
	* gcc.dg/align-2.c: Only run on targets with natural alignment
	of vector types.
	* gcc.dg/vect/slp-25.c: Adjust tests for targets without natural
	alignment of vector types.

Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/config/arm/arm.c
    branches/gcc-4_7-branch/gcc/doc/tm.texi
    branches/gcc-4_7-branch/gcc/doc/tm.texi.in
    branches/gcc-4_7-branch/gcc/stor-layout.c
    branches/gcc-4_7-branch/gcc/target.def
    branches/gcc-4_7-branch/gcc/targhooks.c
    branches/gcc-4_7-branch/gcc/targhooks.h
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/align-2.c
    branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/vect/slp-25.c
    branches/gcc-4_7-branch/gcc/testsuite/lib/target-supports.exp
    branches/gcc-4_7-branch/gcc/tree-vect-data-refs.c
    branches/gcc-4_7-branch/gcc/tree-vect-loop-manip.c