From ca31798e7bf8f87d78ff1ee66c120b135a1b2ebc Mon Sep 17 00:00:00 2001
From: Andre Vieira <andre.simoesdiasvieira@arm.com>
Date: Tue, 13 Nov 2018 14:11:46 +0000
Subject: [PATCH][GCC] Make DR_TARGET_ALIGNMENT compile time variable

This patch enables targets to describe DR_TARGET_ALIGNMENT as a compile-time
variable.  It does so by turning the variable into a 'poly_uint64'.

gcc/ChangeLog:
2018-11-13  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/aarch64/aarch64.c
	(aarch64_vectorize_preferred_vector_alignment): Change return type to
	poly_uint64.
	(aarch64_simd_vector_alignment_reachable): Adapt to preferred vector
	alignment being a poly int.
	* doc/tm.texi (TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT): Change
	return type to poly_uint64.
	* target.def (default_preferred_vector_alignment): Likewise.
	* targhooks.c (default_preferred_vector_alignment): Likewise.
	* targhooks.h (default_preferred_vector_alignment): Likewise.
	* tree-vect-data-refs.c (vect_calculate_target_alignment): Likewise.
	(vect_compute_data_ref_alignment): Adapt to vector alignment being a
	poly int.
	(vect_update_misalignment_for_peel): Likewise.
	(vect_enhance_data_refs_alignment): Likewise.
	(vect_find_same_alignment_drs): Likewise.
	(vect_duplicate_ssa_name_ptr_info): Likewise.
	(vect_setup_realignment): Likewise.
	(vect_can_force_dr_alignment_p): Change alignment parameter type to
	poly_uint64.
	* tree-vect-loop-manip.c (get_misalign_in_elems): Learn to construct a
	mask with a compile time variable vector alignment.
	(vect_gen_prolog_loop_niters): Adapt to vector alignment being a poly
	int.
	(vect_do_peeling): Exit early if vector alignment is not constant.
	* tree-vect-stmts.c (ensure_base_align): Adapt to vector alignment being
	a poly int.
	(vectorizable_store): Likewise.
	(vectorizable_load): Likweise.
	* tree-vectorizer.h (struct dr_vec_info): Make target_alignment field a
	poly_uint64.
	(vect_known_alignment_in_bytes): Adapt to vector alignment being a
	poly int.
	(vect_can_force_dr_alignment_p): Change alignment parameter type to
	poly_uint64.

From-SVN: r266072
---
 gcc/targhooks.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'gcc/targhooks.h')

diff --git a/gcc/targhooks.h b/gcc/targhooks.h
index 176c64d..430c79e 100644
--- a/gcc/targhooks.h
+++ b/gcc/targhooks.h
@@ -102,7 +102,7 @@ extern HOST_WIDE_INT constant_alignment_word_strings (const_tree,
 						      HOST_WIDE_INT);
 extern HOST_WIDE_INT default_vector_alignment (const_tree);
 
-extern HOST_WIDE_INT default_preferred_vector_alignment (const_tree);
+extern poly_uint64 default_preferred_vector_alignment (const_tree);
 extern bool default_builtin_vector_alignment_reachable (const_tree, bool);
 extern bool
 default_builtin_support_vector_misalignment (machine_mode mode,
-- 
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