From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 105787 invoked by alias); 24 Jul 2018 10:06:56 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 105034 invoked by uid 89); 24 Jul 2018 10:06:56 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-11.9 required=5.0 tests=BAYES_00,GIT_PATCH_2,GIT_PATCH_3,SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: foss.arm.com Received: from foss.arm.com (HELO foss.arm.com) (217.140.101.70) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 24 Jul 2018 10:06:54 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A5EC780D for ; Tue, 24 Jul 2018 03:06:52 -0700 (PDT) Received: from localhost (unknown [10.32.99.48]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2E95A3F237 for ; Tue, 24 Jul 2018 03:06:52 -0700 (PDT) From: Richard Sandiford To: gcc-patches@gcc.gnu.org Mail-Followup-To: gcc-patches@gcc.gnu.org, richard.sandiford@arm.com Subject: [35/46] Alter interfaces within vect_pattern_recog References: <87wotlrmen.fsf@arm.com> Date: Tue, 24 Jul 2018 10:06:00 -0000 In-Reply-To: <87wotlrmen.fsf@arm.com> (Richard Sandiford's message of "Tue, 24 Jul 2018 10:52:16 +0100") Message-ID: <87pnzdlzgl.fsf@arm.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-SW-Source: 2018-07/txt/msg01344.txt.bz2 vect_pattern_recog_1 took a gimple_stmt_iterator as argument, but was only interested in the gsi_stmt, not anything else. This patch makes the associated routines operate directly on stmt_vec_infos. 2018-07-24 Richard Sandiford gcc/ * tree-vect-patterns.c (vect_mark_pattern_stmts): Take the original stmt as a stmt_vec_info rather than a gimple stmt. (vect_pattern_recog_1): Take the statement directly as a stmt_vec_info, rather than via a gimple_stmt_iterator. Update call to vect_mark_pattern_stmts. (vect_pattern_recog): Update calls accordingly. Index: gcc/tree-vect-patterns.c =================================================================== --- gcc/tree-vect-patterns.c 2018-07-24 10:23:50.004602150 +0100 +++ gcc/tree-vect-patterns.c 2018-07-24 10:23:59.408518638 +0100 @@ -4720,29 +4720,29 @@ const unsigned int NUM_PATTERNS = ARRAY_ /* Mark statements that are involved in a pattern. */ static inline void -vect_mark_pattern_stmts (gimple *orig_stmt, gimple *pattern_stmt, +vect_mark_pattern_stmts (stmt_vec_info orig_stmt_info, gimple *pattern_stmt, tree pattern_vectype) { - stmt_vec_info orig_stmt_info = vinfo_for_stmt (orig_stmt); gimple *def_seq = STMT_VINFO_PATTERN_DEF_SEQ (orig_stmt_info); - bool old_pattern_p = is_pattern_stmt_p (orig_stmt_info); - if (old_pattern_p) + gimple *orig_pattern_stmt = NULL; + if (is_pattern_stmt_p (orig_stmt_info)) { /* We're replacing a statement in an existing pattern definition sequence. */ + orig_pattern_stmt = orig_stmt_info->stmt; if (dump_enabled_p ()) { dump_printf_loc (MSG_NOTE, vect_location, "replacing earlier pattern "); - dump_gimple_stmt (MSG_NOTE, TDF_SLIM, orig_stmt, 0); + dump_gimple_stmt (MSG_NOTE, TDF_SLIM, orig_pattern_stmt, 0); } /* To keep the book-keeping simple, just swap the lhs of the old and new statements, so that the old one has a valid but unused lhs. */ - tree old_lhs = gimple_get_lhs (orig_stmt); - gimple_set_lhs (orig_stmt, gimple_get_lhs (pattern_stmt)); + tree old_lhs = gimple_get_lhs (orig_pattern_stmt); + gimple_set_lhs (orig_pattern_stmt, gimple_get_lhs (pattern_stmt)); gimple_set_lhs (pattern_stmt, old_lhs); if (dump_enabled_p ()) @@ -4755,7 +4755,8 @@ vect_mark_pattern_stmts (gimple *orig_st orig_stmt_info = STMT_VINFO_RELATED_STMT (orig_stmt_info); /* We shouldn't be replacing the main pattern statement. */ - gcc_assert (STMT_VINFO_RELATED_STMT (orig_stmt_info) != orig_stmt); + gcc_assert (STMT_VINFO_RELATED_STMT (orig_stmt_info)->stmt + != orig_pattern_stmt); } if (def_seq) @@ -4763,13 +4764,14 @@ vect_mark_pattern_stmts (gimple *orig_st !gsi_end_p (si); gsi_next (&si)) vect_init_pattern_stmt (gsi_stmt (si), orig_stmt_info, pattern_vectype); - if (old_pattern_p) + if (orig_pattern_stmt) { vect_init_pattern_stmt (pattern_stmt, orig_stmt_info, pattern_vectype); /* Insert all the new pattern statements before the original one. */ gimple_seq *orig_def_seq = &STMT_VINFO_PATTERN_DEF_SEQ (orig_stmt_info); - gimple_stmt_iterator gsi = gsi_for_stmt (orig_stmt, orig_def_seq); + gimple_stmt_iterator gsi = gsi_for_stmt (orig_pattern_stmt, + orig_def_seq); gsi_insert_seq_before_without_update (&gsi, def_seq, GSI_SAME_STMT); gsi_insert_before_without_update (&gsi, pattern_stmt, GSI_SAME_STMT); @@ -4785,12 +4787,12 @@ vect_mark_pattern_stmts (gimple *orig_st Input: PATTERN_RECOG_FUNC: A pointer to a function that detects a certain computation pattern. - STMT: A stmt from which the pattern search should start. + STMT_INFO: A stmt from which the pattern search should start. If PATTERN_RECOG_FUNC successfully detected the pattern, it creates a sequence of statements that has the same functionality and can be - used to replace STMT. It returns the last statement in the sequence - and adds any earlier statements to STMT's STMT_VINFO_PATTERN_DEF_SEQ. + used to replace STMT_INFO. It returns the last statement in the sequence + and adds any earlier statements to STMT_INFO's STMT_VINFO_PATTERN_DEF_SEQ. PATTERN_RECOG_FUNC also sets *TYPE_OUT to the vector type of the final statement, having first checked that the target supports the new operation in that type. @@ -4799,10 +4801,10 @@ vect_mark_pattern_stmts (gimple *orig_st for vect_recog_pattern. */ static void -vect_pattern_recog_1 (vect_recog_func *recog_func, gimple_stmt_iterator si) +vect_pattern_recog_1 (vect_recog_func *recog_func, stmt_vec_info stmt_info) { - gimple *stmt = gsi_stmt (si), *pattern_stmt; - stmt_vec_info stmt_info; + vec_info *vinfo = stmt_info->vinfo; + gimple *pattern_stmt; loop_vec_info loop_vinfo; tree pattern_vectype; @@ -4810,13 +4812,12 @@ vect_pattern_recog_1 (vect_recog_func *r leave the original statement alone, since the first match wins. Instead try to match against the definition statements that feed the main pattern statement. */ - stmt_info = vinfo_for_stmt (stmt); if (STMT_VINFO_IN_PATTERN_P (stmt_info)) { gimple_stmt_iterator gsi; for (gsi = gsi_start (STMT_VINFO_PATTERN_DEF_SEQ (stmt_info)); !gsi_end_p (gsi); gsi_next (&gsi)) - vect_pattern_recog_1 (recog_func, gsi); + vect_pattern_recog_1 (recog_func, vinfo->lookup_stmt (gsi_stmt (gsi))); return; } @@ -4841,7 +4842,7 @@ vect_pattern_recog_1 (vect_recog_func *r } /* Mark the stmts that are involved in the pattern. */ - vect_mark_pattern_stmts (stmt, pattern_stmt, pattern_vectype); + vect_mark_pattern_stmts (stmt_info, pattern_stmt, pattern_vectype); /* Patterns cannot be vectorized using SLP, because they change the order of computation. */ @@ -4957,9 +4958,13 @@ vect_pattern_recog (vec_info *vinfo) { basic_block bb = bbs[i]; for (si = gsi_start_bb (bb); !gsi_end_p (si); gsi_next (&si)) - /* Scan over all generic vect_recog_xxx_pattern functions. */ - for (j = 0; j < NUM_PATTERNS; j++) - vect_pattern_recog_1 (&vect_vect_recog_func_ptrs[j], si); + { + stmt_vec_info stmt_info = vinfo->lookup_stmt (gsi_stmt (si)); + /* Scan over all generic vect_recog_xxx_pattern functions. */ + for (j = 0; j < NUM_PATTERNS; j++) + vect_pattern_recog_1 (&vect_vect_recog_func_ptrs[j], + stmt_info); + } } } else @@ -4975,7 +4980,7 @@ vect_pattern_recog (vec_info *vinfo) /* Scan over all generic vect_recog_xxx_pattern functions. */ for (j = 0; j < NUM_PATTERNS; j++) - vect_pattern_recog_1 (&vect_vect_recog_func_ptrs[j], si); + vect_pattern_recog_1 (&vect_vect_recog_func_ptrs[j], stmt_info); } } }