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GET /api/1.1/patches/2227791/?format=api
{ "id": 2227791, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2227791/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/20260424091639.2CB38593A4@imap1.dmz-prg2.suse.org/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/1.1/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260424091639.2CB38593A4@imap1.dmz-prg2.suse.org>", "date": "2026-04-24T09:16:34", "name": "Improve points-to after vectorization", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "d6006575e8479c7d72be9aa4de1444a42d037b89", "submitter": { "id": 4338, "url": "http://patchwork.ozlabs.org/api/1.1/people/4338/?format=api", "name": "Richard Biener", "email": "rguenther@suse.de" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/20260424091639.2CB38593A4@imap1.dmz-prg2.suse.org/mbox/", "series": [ { "id": 501325, "url": "http://patchwork.ozlabs.org/api/1.1/series/501325/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=501325", "date": "2026-04-24T09:16:34", "name": "Improve points-to after vectorization", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501325/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2227791/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2227791/checks/", "tags": {}, "headers": { "Return-Path": "<gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=suse.de header.i=@suse.de 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s=susede2_ed25519; t=1777022200;\n h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:\n mime-version:mime-version:content-type:content-type;\n bh=+8KIZ/uxWgG0y9LKrR2+tBmp0RPTiYJaugYqMNPX1vU=;\n b=O27572lnZt8pDqSAJH0R2BLupCZUZLogA9aiBwWVpGerWVGTRzF06XoFyg6Dax7sLbrfzF\n HoEQ5HLFT6mBbmBw==", "v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de;\n s=susede2_rsa;\n t=1777022199; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:\n mime-version:mime-version:content-type:content-type;\n bh=+8KIZ/uxWgG0y9LKrR2+tBmp0RPTiYJaugYqMNPX1vU=;\n b=lX2ALZrcFPFOzjXwzfQ/F5ZnJ/NWby9O/DVxcwumkQe88RisU2Rtts0rOxZC7n32jtSzWJ\n bfDvl1tbWkJDA/qgPJKM0VKjDbfrxd+IHzak9iDlc+e/GudJyqemEbGTrK2mTCH3cyEE0b\n oSSS7zatsM/7CPQx6czz5WdGA8havr0=", "v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de;\n s=susede2_ed25519; t=1777022199;\n h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:\n mime-version:mime-version:content-type:content-type;\n bh=+8KIZ/uxWgG0y9LKrR2+tBmp0RPTiYJaugYqMNPX1vU=;\n b=eom7aeLiz8UKUhdK+vhkI/oC3t9Dn7kOrf6GCwp/u+YJ3OBPpWPdAn+iq19N6wNzOBhqKs\n uDijyXVodBFpgSBQ==" ], "Date": "Fri, 24 Apr 2026 11:16:34 +0200 (CEST)", "From": "Richard Biener <rguenther@suse.de>", "To": "gcc-patches@gcc.gnu.org", "Subject": "[PATCH] Improve points-to after vectorization", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=US-ASCII", "Message-Id": "<20260424091639.2CB38593A4@imap1.dmz-prg2.suse.org>", "X-Rspamd-Action": "no action", "X-Rspamd-Server": "rspamd2.dmz-prg2.suse.org", "X-Spamd-Result": "default: False [-4.51 / 50.00]; BAYES_HAM(-3.00)[100.00%];\n NEURAL_HAM_LONG(-1.00)[-1.000];\n R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519];\n NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain];\n MX_GOOD(-0.01)[]; MISSING_XM_UA(0.00)[];\n SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from];\n RCPT_COUNT_ONE(0.00)[1]; FUZZY_RATELIMITED(0.00)[rspamd.com];\n RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+];\n ARC_NA(0.00)[]; RCVD_TLS_ALL(0.00)[];\n DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519];\n FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[];\n DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:mid,imap1.dmz-prg2.suse.org:rdns,imap1.dmz-prg2.suse.org:helo,suse.de:dkim,tree-vect-data-refs.cc:url];\n RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[];\n TO_DN_NONE(0.00)[];\n PREVIOUSLY_DELIVERED(0.00)[gcc-patches@gcc.gnu.org];\n DKIM_TRACE(0.00)[suse.de:+]", "X-Rspamd-Queue-Id": "444226A7FB", "X-BeenThere": "gcc-patches@gcc.gnu.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Gcc-patches mailing list <gcc-patches.gcc.gnu.org>", "List-Unsubscribe": "<https://gcc.gnu.org/mailman/options/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe>", "List-Archive": "<https://gcc.gnu.org/pipermail/gcc-patches/>", "List-Post": "<mailto:gcc-patches@gcc.gnu.org>", "List-Help": "<mailto:gcc-patches-request@gcc.gnu.org?subject=help>", "List-Subscribe": "<https://gcc.gnu.org/mailman/listinfo/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe>", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "The following teaches the vectorizer to create points-to info from\nnon-pointer accesses like copy_ref_info does.\n\nBootstrapped and tested on x86_64-unknown-linux-gnu, pushed.\n\n\t* tree-vect-data-refs.cc (vect_duplicate_ssa_name_ptr_info):\n\tCreate points-to info from decl-based accesses.\n\t(vect_create_addr_base_for_vector_ref): Adjust.\n\t(vect_create_data_ref_ptr): Likewise.\n\t(bump_vector_ptr): Likewise.\n---\n gcc/tree-vect-data-refs.cc | 45 ++++++++++++++++++++------------------\n 1 file changed, 24 insertions(+), 21 deletions(-)", "diff": "diff --git a/gcc/tree-vect-data-refs.cc b/gcc/tree-vect-data-refs.cc\nindex ae556d85c7f..48181a4e7f0 100644\n--- a/gcc/tree-vect-data-refs.cc\n+++ b/gcc/tree-vect-data-refs.cc\n@@ -5658,10 +5658,24 @@ vect_get_new_ssa_name (tree type, enum vect_var_kind var_kind, const char *name)\n static void\n vect_duplicate_ssa_name_ptr_info (tree name, dr_vec_info *dr_info)\n {\n- duplicate_ssa_name_ptr_info (name, DR_PTR_INFO (dr_info->dr));\n- /* DR_PTR_INFO is for a base SSA name, not including constant or\n- variable offsets in the ref so its alignment info does not apply. */\n- mark_ptr_info_alignment_unknown (SSA_NAME_PTR_INFO (name));\n+ if (DR_PTR_INFO (dr_info->dr))\n+ {\n+ duplicate_ssa_name_ptr_info (name, DR_PTR_INFO (dr_info->dr));\n+ /* DR_PTR_INFO is for a base SSA name, not including constant or\n+\t variable offsets in the ref so its alignment info does not apply. */\n+ mark_ptr_info_alignment_unknown (SSA_NAME_PTR_INFO (name));\n+ }\n+ else if (!SSA_NAME_PTR_INFO (name))\n+ {\n+ tree base = get_base_address (dr_info->dr->ref);\n+ if (VAR_P (base)\n+\t || TREE_CODE (base) == PARM_DECL\n+\t || TREE_CODE (base) == RESULT_DECL)\n+\t{\n+\t struct ptr_info_def *pi = get_ptr_info (name);\n+\t pt_solution_set_var (&pi->pt, base);\n+\t}\n+ }\n }\n \n /* Function vect_create_addr_base_for_vector_ref.\n@@ -5752,8 +5766,7 @@ vect_create_addr_base_for_vector_ref (vec_info *vinfo, stmt_vec_info stmt_info,\n addr_base = force_gimple_operand (addr_base, &seq, true, dest);\n gimple_seq_add_seq (new_stmt_list, seq);\n \n- if (DR_PTR_INFO (dr)\n- && TREE_CODE (addr_base) == SSA_NAME\n+ if (TREE_CODE (addr_base) == SSA_NAME\n /* We should only duplicate pointer info to newly created SSA names. */\n && SSA_NAME_VAR (addr_base) == dest)\n {\n@@ -6001,11 +6014,8 @@ vect_create_data_ref_ptr (vec_info *vinfo, stmt_vec_info stmt_info,\n incr = gsi_stmt (incr_gsi);\n \n /* Copy the points-to information if it exists. */\n- if (DR_PTR_INFO (dr))\n-\t{\n-\t vect_duplicate_ssa_name_ptr_info (indx_before_incr, dr_info);\n-\t vect_duplicate_ssa_name_ptr_info (indx_after_incr, dr_info);\n-\t}\n+ vect_duplicate_ssa_name_ptr_info (indx_before_incr, dr_info);\n+ vect_duplicate_ssa_name_ptr_info (indx_after_incr, dr_info);\n if (ptr_incr)\n \t*ptr_incr = incr;\n \n@@ -6030,11 +6040,8 @@ vect_create_data_ref_ptr (vec_info *vinfo, stmt_vec_info stmt_info,\n incr = gsi_stmt (incr_gsi);\n \n /* Copy the points-to information if it exists. */\n- if (DR_PTR_INFO (dr))\n-\t{\n-\t vect_duplicate_ssa_name_ptr_info (indx_before_incr, dr_info);\n-\t vect_duplicate_ssa_name_ptr_info (indx_after_incr, dr_info);\n-\t}\n+ vect_duplicate_ssa_name_ptr_info (indx_before_incr, dr_info);\n+ vect_duplicate_ssa_name_ptr_info (indx_after_incr, dr_info);\n if (ptr_incr)\n \t*ptr_incr = incr;\n \n@@ -6115,11 +6122,7 @@ bump_vector_ptr (vec_info *vinfo,\n }\n \n /* Copy the points-to information if it exists. */\n- if (DR_PTR_INFO (dr))\n- {\n- duplicate_ssa_name_ptr_info (new_dataref_ptr, DR_PTR_INFO (dr));\n- mark_ptr_info_alignment_unknown (SSA_NAME_PTR_INFO (new_dataref_ptr));\n- }\n+ duplicate_ssa_name_ptr_info (new_dataref_ptr, DR_PTR_INFO (dr));\n \n if (!ptr_incr)\n return new_dataref_ptr;\n", "prefixes": [] }