------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-11-04 05:27
-------
Subject: Bug 18009
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: [EMAIL PROTECTED] 2004-11-04 05:26:55
Modified files:
gcc : ChangeLog tree-vectorizer.h tree-vectorizer.c
Log message:
PR tree-optimization/18009
* tree-vectorizer.h (enum dr_alignment_support): New type.
(MAX_NUMBER_OF_UNALIGNED_DATA_REFS): Removed.
(LOOP_UNALIGNED_DR): replaced with LOOP_VINFO_UNALIGNED_DR and holds a
single data_reference (instead of a varray of references).
* tree-vectorizer.c (new_loop_vec_info): Likewise.
(vect_gen_niters_for_prolog_loop): Likewise.
(vect_update_inits_of_drs): Likewise.
(vect_update_inits_of_drs): Setting of DR_MISALIGNMENT moved to
vect_enhance_data_refs_alignment.
(vect_do_peeling_for_alignment): Likewise.
(vect_enhance_data_refs_alignment): Decide if and by how much to peel;
this functionality used to be in vect_analyze_data_refs_alignment.
Also update DR_MISALIGNMENT due to peeling; this functionality used to
be in vect_update_inits_of_drs and vect_do_peeling_for_alignment).
(vect_analyze_data_refs_alignment): Decision on whether and by how much
to peel moved to vect_enhance_data_refs_alignment. Call
vect_supportable_dr_alignment.
(vect_compute_data_ref_alignment): Set STMT_VINFO_VECTYPE.
(vect_compute_data_refs_alignment): Return bool. Consider return value
of vect_compute_data_ref_alignment and return true/false accordingly.
(vect_enhance_data_refs_alignment): Consider return value of
vect_compute_data_refs_alignment and return true/false accordingly.
(vect_supportable_dr_alignment): New function.
(vectorizable_store): Call vect_supportable_dr_alignment.
(vectorizable_load): Call vect_supportable_dr_alignment. Alignment
support checks moved from here to vect_supportable_dr_alignment.
(vect_transform_loop): Avoid 80 columns overflow.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6157&r2=2.6158
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vectorizer.h.diff?cvsroot=gcc&r1=2.6&r2=2.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vectorizer.c.diff?cvsroot=gcc&r1=2.22&r2=2.23
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18009
