Re: [6/10] Add a vect_element_align_preferred target selector

[Jeff Law <law@redhat.com>]

On 11/03/2017 10:20 AM, Richard Sandiford wrote:
> This patch adds a target selector for targets whose
> preferred_vector_alignment is the alignment of one element.  We'll never
> peel in that case, and the step of a loop that operates on normal (as
> opposed to packed) elements will always divide the preferred alignment.
> 
> 
> 2017-11-03  Richard Sandiford  <richard.sandiford@linaro.org>
> 	    Alan Hayward  <alan.hayward@arm.com>
> 	    David Sherwood  <david.sherwood@arm.com>
> 
> gcc/
> 	* doc/sourcebuild.texi (vect_element_align_preferred): Document.
> 
> gcc/testsuite/
> 	* lib/target-supports.exp
> 	(check_effective_target_vect_element_align_preferred): New proc.
> 	(check_effective_target_vect_peeling_profitable): Test it.
> 	* gcc.dg/vect/no-section-anchors-vect-31.c: Don't expect peeling
> 	if vect_element_align_preferred.
> 	* gcc.dg/vect/no-section-anchors-vect-64.c: Likewise.
> 	* gcc.dg/vect/pr65310.c: Likewise.
> 	* gcc.dg/vect/vect-26.c: Likewise.
> 	* gcc.dg/vect/vect-54.c: Likewise.
> 	* gcc.dg/vect/vect-56.c: Likewise.
> 	* gcc.dg/vect/vect-58.c: Likewise.
> 	* gcc.dg/vect/vect-60.c: Likewise.
> 	* gcc.dg/vect/vect-89-big-array.c: Likewise.
> 	* gcc.dg/vect/vect-89.c: Likewise.
> 	* gcc.dg/vect/vect-92.c: Likewise.
> 	* gcc.dg/vect/vect-peel-1.c: Likewise.
> 	* gcc.dg/vect/vect-outer-3a-big-array.c: Expect the step to
> 	divide the alignment if vect_element_align_preferred.
> 	* gcc.dg/vect/vect-outer-3a.c: Likewise.
OK.
jeff