On 11/03/2017 10:22 AM, Richard Sandiford wrote:
> This patch adds a target selector to say whether it's possible to
> align a local variable to the target's preferred vector alignment.
> This can be false for large vectors if the alignment is only
> a preference and not a hard requirement (and thus if there is no
> need to support a stack realignment mechanism).
>
>
> 2017-11-03 Richard Sandiford <richard.sandif...@linaro.org>
> Alan Hayward <alan.hayw...@arm.com>
> David Sherwood <david.sherw...@arm.com>
>
> gcc/
> * doc/sourcebuild.texi (vect_align_stack_vars): Document.
>
> gcc/testsuite/
> * lib/target-supports.exp
> (check_effective_target_vect_align_stack_vars): New proc.
> * gcc.dg/vect/vect-23.c: Only expect the array to be aligned if
> vect_align_stack_vars.
> * gcc.dg/vect/vect-24.c: Likewise.
> * gcc.dg/vect/vect-25.c: Likewise.
> * gcc.dg/vect/vect-26.c: Likewise.
> * gcc.dg/vect/vect-32-big-array.c: Likewise.
> * gcc.dg/vect/vect-32.c: Likewise.
> * gcc.dg/vect/vect-40.c: Likewise.
> * gcc.dg/vect/vect-42.c: Likewise.
> * gcc.dg/vect/vect-46.c: Likewise.
> * gcc.dg/vect/vect-48.c: Likewise.
> * gcc.dg/vect/vect-52.c: Likewise.
> * gcc.dg/vect/vect-54.c: Likewise.
> * gcc.dg/vect/vect-62.c: Likewise.
> * gcc.dg/vect/vect-67.c: Likewise.
> * gcc.dg/vect/vect-75-big-array.c: Likewise.
> * gcc.dg/vect/vect-75.c: Likewise.
> * gcc.dg/vect/vect-77-alignchecks.c: Likewise.
> * gcc.dg/vect/vect-78-alignchecks.c: Likewise.
> * gcc.dg/vect/vect-89-big-array.c: Likewise.
> * gcc.dg/vect/vect-89.c: Likewise.
> * gcc.dg/vect/vect-96.c: Likewise.
> * gcc.dg/vect/vect-multitypes-3.c: Likewise.
> * gcc.dg/vect/vect-multitypes-6.c: Likewise.
OK.
jeff
