{"id":2226716,"url":"http://patchwork.ozlabs.org/api/patches/2226716/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhuom29jc4.gcc.gcc-TEST.pinskia.61.1.5@forge-stage.sourceware.org/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/projects/17/?format=json","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,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"","list_archive_url":null,"date":"2026-04-22T18:30:30","name":"[v1,5/6] Support copying over other memory stmts","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"0d79fdd9f4acc9a8d5d743ed8875ed518ece795d","submitter":{"id":93219,"url":"http://patchwork.ozlabs.org/api/people/93219/?format=json","name":"Andrew Pinski via Sourceware Forge","email":"forge-bot+pinskia@forge-stage.sourceware.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhuom29jc4.gcc.gcc-TEST.pinskia.61.1.5@forge-stage.sourceware.org/mbox/","series":[{"id":501080,"url":"http://patchwork.ozlabs.org/api/series/501080/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=501080","date":"2026-04-22T18:30:28","name":"copy-propv3","version":1,"mbox":"http://patchwork.ozlabs.org/series/501080/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2226716/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2226716/checks/","tags":{},"related":[],"headers":{"Return-Path":"","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 spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=2620:52:6:3111::32; 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server2.sourceware.org","From":"Andrew Pinski via Sourceware Forge\n ","Date":"Wed, 22 Apr 2026 18:30:30 +0000","Subject":"[PATCH v1 5/6] Support copying over other memory stmts","To":"gcc-patches mailing list ","Message-ID":"\n ","X-Mailer":"batrachomyomachia","X-Pull-Request-Organization":"gcc","X-Pull-Request-Repository":"gcc-TEST","X-Pull-Request":"https://forge.sourceware.org/gcc/gcc-TEST/pulls/61","References":"\n ","In-Reply-To":"\n ","X-Patch-URL":"\n https://forge.sourceware.org/pinskia/gcc-TEST/commit/4c59e5cc906f85a415c0f3098fc6c69282d97be2","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Reply-To":"gcc-patches mailing list ,\n pinskia@gcc.gnu.org","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"From: Andrew Pinski \n\ngcc/ChangeLog:\n\n\t* tree-ssa-forwprop.cc (optimize_agr_copyprop):\n\nSigned-off-by: Andrew Pinski \n---\n gcc/tree-ssa-forwprop.cc | 40 ++++++++++++++++++++++++++++++++--------\n 1 file changed, 32 insertions(+), 8 deletions(-)","diff":"diff --git a/gcc/tree-ssa-forwprop.cc b/gcc/tree-ssa-forwprop.cc\nindex 852ef21b3acc..60354ab03ad1 100644\n--- a/gcc/tree-ssa-forwprop.cc\n+++ b/gcc/tree-ssa-forwprop.cc\n@@ -1497,6 +1497,8 @@ optimize_agr_copyprop_arg (gimple *defstmt, gimple *use_stmt,\n static bool\n optimize_agr_copyprop (gimple_stmt_iterator *gsip)\n {\n+ ao_ref read;\n+ ao_ref write;\n gimple *stmt = gsi_stmt (*gsip);\n if (gimple_has_volatile_ops (stmt))\n return false;\n@@ -1511,17 +1513,39 @@ optimize_agr_copyprop (gimple_stmt_iterator *gsip)\n if (operand_equal_p (dest, src, 0))\n return false;\n \n- tree vdef = gimple_vdef (stmt);\n- imm_use_iterator iter;\n- gimple *use_stmt;\n+ auto_vec> worklist;\n+ ao_ref_init (&read, dest);\n+ ao_ref_init (&write, src);\n+ unsigned limit = param_sccvn_max_alias_queries_per_access;\n+ worklist.safe_push (std::make_pair (gimple_vdef (stmt), limit));\n bool changed = false;\n- FOR_EACH_IMM_USE_STMT (use_stmt, iter, vdef)\n+\n+ while (!worklist.is_empty ())\n {\n- if (optimize_agr_copyprop_1 (stmt, use_stmt, dest, src))\n-\tchanged = true;\n- else if (optimize_agr_copyprop_arg (stmt, use_stmt, dest, src))\n-\tchanged = true;\n+ std::pair top = worklist.pop ();\n+ tree vdef = top.first;\n+ limit = top.second;\n+ imm_use_iterator iter;\n+ gimple *use_stmt;\n+ FOR_EACH_IMM_USE_STMT (use_stmt, iter, vdef)\n+ {\n+\t if (is_a (use_stmt))\n+\t continue;\n+\t if (gimple_vdef (use_stmt)\n+\t && !stmt_may_clobber_ref_p_1 (use_stmt, &read,\n+\t\t\t\t\t /* tbaa_p = */ true)\n+\t && !stmt_may_clobber_ref_p_1 (use_stmt, &write,\n+\t\t\t\t\t /* tbaa_p = */ false)\n+\t && limit != 0)\n+\t worklist.safe_push (std::make_pair (gimple_vdef (use_stmt),\n+\t\t\t\t\t\tlimit - 1));\n+ if (optimize_agr_copyprop_1 (stmt, use_stmt, dest, src))\n+\t changed = true;\n+ else if (optimize_agr_copyprop_arg (stmt, use_stmt, dest, src))\n+\t changed = true;\n+ }\n }\n+\n return changed;\n }\n \n","prefixes":["v1","5/6"]}