From 4d83db5d73ce3e355f9ac166e04d72ce41decfb5 Mon Sep 17 00:00:00 2001 From: Richard Sandiford Date: Thu, 9 Nov 2017 15:16:55 +0000 Subject: Add a vect_element_align_preferred target selector 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. 2017-11-09 Richard Sandiford Alan Hayward David Sherwood 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. Co-Authored-By: Alan Hayward Co-Authored-By: David Sherwood From-SVN: r254593 --- gcc/doc/sourcebuild.texi | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'gcc/doc') diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi index b36c812..82c1d80 100644 --- a/gcc/doc/sourcebuild.texi +++ b/gcc/doc/sourcebuild.texi @@ -1383,6 +1383,10 @@ have different type from the value operands. @item vect_double Target supports hardware vectors of @code{double}. +@item vect_element_align_preferred +The target's preferred vector alignment is the same as the element +alignment. + @item vect_float Target supports hardware vectors of @code{float}. -- cgit v1.1