[{"id":1759978,"web_url":"http://patchwork.ozlabs.org/comment/1759978/","msgid":"","list_archive_url":null,"date":"2017-08-30T09:18:02","subject":"Re: [PATCH] Fix IPA ICF with ASM statements (PR inline-asm/82001).","submitter":{"id":1765,"url":"http://patchwork.ozlabs.org/api/people/1765/","name":"Richard Biener","email":"richard.guenther@gmail.com"},"content":"On Wed, Aug 30, 2017 at 11:12 AM, Martin Liška wrote:\n> Hi.\n>\n> Following patch compares also constraints of input and output operands of ASM statements.\n> Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.\n>\n> Ready to be installed?\n\nIt's now no longer \"compare_tree_list_operand\" but compare_asm_constraint\nwhere there's no need to walk TREE_CHAIN either.\n\nSo can you refactor this a bit?\n\n> Martin\n>\n> gcc/ChangeLog:\n>\n> 2017-08-28 Martin Liska \n>\n> PR inline-asm/82001\n> * ipa-icf-gimple.c (func_checker::compare_tree_list_operand):\n> Compare TREE_PURPOSE of asm inputs and outputs.\n>\n> gcc/testsuite/ChangeLog:\n>\n> 2017-08-28 Martin Liska \n>\n> PR inline-asm/82001\n> * gcc.dg/ipa/pr82001.c: New test.\n> ---\n> gcc/ipa-icf-gimple.c | 10 ++++++++++\n> gcc/testsuite/gcc.dg/ipa/pr82001.c | 21 +++++++++++++++++++++\n> 2 files changed, 31 insertions(+)\n> create mode 100644 gcc/testsuite/gcc.dg/ipa/pr82001.c\n>\n>","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list gcc-patches@gcc.gnu.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=gcc-patches-return-461140-incoming=patchwork.ozlabs.org@gcc.gnu.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org\n\theader.b=\"ECG8ZcBR\"; dkim-atps=neutral","sourceware.org; auth=none"],"Received":["from sourceware.org (server1.sourceware.org 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SMTP id r10mr1246803edl.148.1504084683091;\n\tWed, 30 Aug 2017 02:18:03 -0700 (PDT)","MIME-Version":"1.0","In-Reply-To":"","References":"","From":"Richard Biener ","Date":"Wed, 30 Aug 2017 11:18:02 +0200","Message-ID":"","Subject":"Re: [PATCH] Fix IPA ICF with ASM statements (PR inline-asm/82001).","To":"=?utf-8?q?Martin_Li=C5=A1ka?= ","Cc":"GCC Patches ","Content-Type":"text/plain; charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable","X-IsSubscribed":"yes"}},{"id":1760024,"web_url":"http://patchwork.ozlabs.org/comment/1760024/","msgid":"<3945dc16-16de-bcba-8231-44557d78948e@suse.cz>","list_archive_url":null,"date":"2017-08-30T10:17:53","subject":"Re: [PATCH] Fix IPA ICF with ASM statements (PR inline-asm/82001).","submitter":{"id":62010,"url":"http://patchwork.ozlabs.org/api/people/62010/","name":"Martin Liška","email":"mliska@suse.cz"},"content":"On 08/30/2017 11:18 AM, Richard Biener wrote:\n> On Wed, Aug 30, 2017 at 11:12 AM, Martin Liška wrote:\n>> Hi.\n>>\n>> Following patch compares also constraints of input and output operands of ASM statements.\n>> Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.\n>>\n>> Ready to be installed?\n> \n> It's now no longer \"compare_tree_list_operand\" but compare_asm_constraint\n> where there's no need to walk TREE_CHAIN either.\n\nYep, it desires a refactoring.\n\nIs it fine for trunk?\n\nMartin\n\n> \n> So can you refactor this a bit?\n> \n>> Martin\n>>\n>> gcc/ChangeLog:\n>>\n>> 2017-08-28 Martin Liska \n>>\n>> PR inline-asm/82001\n>> * ipa-icf-gimple.c (func_checker::compare_tree_list_operand):\n>> Compare TREE_PURPOSE of asm inputs and outputs.\n>>\n>> gcc/testsuite/ChangeLog:\n>>\n>> 2017-08-28 Martin Liska \n>>\n>> PR inline-asm/82001\n>> * gcc.dg/ipa/pr82001.c: New test.\n>> ---\n>> gcc/ipa-icf-gimple.c | 10 ++++++++++\n>> gcc/testsuite/gcc.dg/ipa/pr82001.c | 21 +++++++++++++++++++++\n>> 2 files changed, 31 insertions(+)\n>> create mode 100644 gcc/testsuite/gcc.dg/ipa/pr82001.c\n>>\n>>\nFrom dbbbf807a5721cb14da95fddbfe9afc32cd60ce7 Mon Sep 17 00:00:00 2001\nFrom: marxin \nDate: Mon, 28 Aug 2017 13:57:07 +0200\nSubject: [PATCH] Fix IPA ICF with ASM statements (PR inline-asm/82001).\n\ngcc/ChangeLog:\n\n2017-08-28 Martin Liska \n\n\tPR inline-asm/82001\n\t* ipa-icf-gimple.c (func_checker::compare_tree_list_operand):\n\tRename to ...\n\t(func_checker::compare_asm_inputs_outputs): ... this function.\n\t(func_checker::compare_gimple_asm): Use the function to compare\n\talso ASM constrains.\n\t* ipa-icf-gimple.h: Rename the function.\n\ngcc/testsuite/ChangeLog:\n\n2017-08-28 Martin Liska \n\n\tPR inline-asm/82001\n\t* gcc.dg/ipa/pr82001.c: New test.\n---\n gcc/ipa-icf-gimple.c | 19 +++++++++++++------\n gcc/ipa-icf-gimple.h | 6 +++---\n gcc/testsuite/gcc.dg/ipa/pr82001.c | 21 +++++++++++++++++++++\n 3 files changed, 37 insertions(+), 9 deletions(-)\n create mode 100644 gcc/testsuite/gcc.dg/ipa/pr82001.c\n\ndiff --git a/gcc/ipa-icf-gimple.c b/gcc/ipa-icf-gimple.c\nindex f44a995f580..b40dd8653b4 100644\n--- a/gcc/ipa-icf-gimple.c\n+++ b/gcc/ipa-icf-gimple.c\n@@ -543,11 +543,8 @@ func_checker::compare_operand (tree t1, tree t2)\n }\n }\n \n-/* Compares two tree list operands T1 and T2 and returns true if these\n- two trees are semantically equivalent. */\n-\n bool\n-func_checker::compare_tree_list_operand (tree t1, tree t2)\n+func_checker::compare_asm_inputs_outputs (tree t1, tree t2)\n {\n gcc_assert (TREE_CODE (t1) == TREE_LIST);\n gcc_assert (TREE_CODE (t2) == TREE_LIST);\n@@ -560,6 +557,16 @@ func_checker::compare_tree_list_operand (tree t1, tree t2)\n if (!compare_operand (TREE_VALUE (t1), TREE_VALUE (t2)))\n \treturn return_false ();\n \n+ tree p1 = TREE_PURPOSE (t1);\n+ tree p2 = TREE_PURPOSE (t2);\n+\n+ gcc_assert (TREE_CODE (p1) == TREE_LIST);\n+ gcc_assert (TREE_CODE (p2) == TREE_LIST);\n+\n+ if (strcmp (TREE_STRING_POINTER (TREE_VALUE (p1)),\n+\t\t TREE_STRING_POINTER (TREE_VALUE (p2))) != 0)\n+\treturn return_false ();\n+\n t2 = TREE_CHAIN (t2);\n }\n \n@@ -1008,7 +1015,7 @@ func_checker::compare_gimple_asm (const gasm *g1, const gasm *g2)\n tree input1 = gimple_asm_input_op (g1, i);\n tree input2 = gimple_asm_input_op (g2, i);\n \n- if (!compare_tree_list_operand (input1, input2))\n+ if (!compare_asm_inputs_outputs (input1, input2))\n \treturn return_false_with_msg (\"ASM input is different\");\n }\n \n@@ -1017,7 +1024,7 @@ func_checker::compare_gimple_asm (const gasm *g1, const gasm *g2)\n tree output1 = gimple_asm_output_op (g1, i);\n tree output2 = gimple_asm_output_op (g2, i);\n \n- if (!compare_tree_list_operand (output1, output2))\n+ if (!compare_asm_inputs_outputs (output1, output2))\n \treturn return_false_with_msg (\"ASM output is different\");\n }\n \ndiff --git a/gcc/ipa-icf-gimple.h b/gcc/ipa-icf-gimple.h\nindex da904b5897e..7e69024165f 100644\n--- a/gcc/ipa-icf-gimple.h\n+++ b/gcc/ipa-icf-gimple.h\n@@ -215,9 +215,9 @@ public:\n is returned. */\n bool compare_operand (tree t1, tree t2);\n \n- /* Compares two tree list operands T1 and T2 and returns true if these\n- two trees are semantically equivalent. */\n- bool compare_tree_list_operand (tree t1, tree t2);\n+ /* Compares GIMPLE ASM inputs (or outputs) where we iterate tree chain\n+ and compare both TREE_PURPOSEs and TREE_VALUEs. */\n+ bool compare_asm_inputs_outputs (tree t1, tree t2);\n \n /* Verifies that trees T1 and T2, representing function declarations\n are equivalent from perspective of ICF. */\ndiff --git a/gcc/testsuite/gcc.dg/ipa/pr82001.c b/gcc/testsuite/gcc.dg/ipa/pr82001.c\nnew file mode 100644\nindex 00000000000..05e32b10ef5\n--- /dev/null\n+++ b/gcc/testsuite/gcc.dg/ipa/pr82001.c\n@@ -0,0 +1,21 @@\n+/* { dg-do compile { target i?86-*-* x86_64-*-* } } */\n+/* { dg-options \"-O2 -fdump-ipa-icf-details\" } */\n+\n+int\n+mullo (int a, int b)\n+{\n+ asm(\"mul %%edx # %%1 was %1\"\n+ : \"+\"\n+\t\"a\"(a),\n+\t\"+d\"(b));\n+ return a;\n+}\n+\n+int\n+mulhi (int a, int b)\n+{\n+ asm(\"mul %%edx # %%1 was %1\" : \"+d\"(a), \"+a\"(b));\n+ return a;\n+}\n+\n+/* { dg-final { scan-ipa-dump \"Equal symbols: 0\" \"icf\" } } */","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list gcc-patches@gcc.gnu.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=gcc-patches-return-461146-incoming=patchwork.ozlabs.org@gcc.gnu.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org\n\theader.b=\"dBonb5Do\"; dkim-atps=neutral","sourceware.org; auth=none"],"Received":["from sourceware.org (server1.sourceware.org [209.132.180.131])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xj1fq3V3cz9t0F\n\tfor ;\n\tWed, 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h=list-id\n\t:list-unsubscribe:list-archive:list-post:list-help:sender\n\t:subject:to:cc:references:from:message-id:date:mime-version\n\t:in-reply-to:content-type; s=default; bh=b5C3jNVKc4dUIuy+O4oT3e0\n\tsd7E=; b=dBonb5DoiHWUUwewFefA3JUnldhRqSed+cQNP2pBaVyfY/YlP9sdnMF\n\tve3rJyQ+TSrC2jYcfQGppoCtCfhcSLw1Sec2gP66FvoglCZvFrvtFC1cchskMTSx\n\tjjv4fwAlqfIQBrR2ruM74kcjc0G8wI+CYIUUzOMSTLBrKnSgJeSo=","Mailing-List":"contact gcc-patches-help@gcc.gnu.org; run by ezmlm","Precedence":"bulk","List-Id":"","List-Unsubscribe":"","List-Archive":"","List-Post":"","List-Help":"","Sender":"gcc-patches-owner@gcc.gnu.org","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-26.9 required=5.0 tests=BAYES_00, GIT_PATCH_0,\n\tGIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3,\n\tSPF_PASS autolearn=ham version=3.3.2 spammy=desires","X-HELO":"mx1.suse.de","Subject":"Re: [PATCH] Fix IPA ICF with ASM statements (PR inline-asm/82001).","To":"Richard Biener ","Cc":"GCC Patches ","References":"\n\t","From":"=?utf-8?q?Martin_Li=C5=A1ka?= ","Message-ID":"<3945dc16-16de-bcba-8231-44557d78948e@suse.cz>","Date":"Wed, 30 Aug 2017 12:17:53 +0200","User-Agent":"Mozilla/5.0 (X11; Linux x86_64;\n\trv:52.0) Gecko/20100101 Thunderbird/52.2.1","MIME-Version":"1.0","In-Reply-To":"","Content-Type":"multipart/mixed;\n\tboundary=\"------------EDEB0A143B639D2F0B0FBB47\"","X-IsSubscribed":"yes"}},{"id":1760117,"web_url":"http://patchwork.ozlabs.org/comment/1760117/","msgid":"","list_archive_url":null,"date":"2017-08-30T12:32:04","subject":"Re: [PATCH] Fix IPA ICF with ASM statements (PR inline-asm/82001).","submitter":{"id":1765,"url":"http://patchwork.ozlabs.org/api/people/1765/","name":"Richard Biener","email":"richard.guenther@gmail.com"},"content":"On Wed, Aug 30, 2017 at 12:17 PM, Martin Liška wrote:\n> On 08/30/2017 11:18 AM, Richard Biener wrote:\n>> On Wed, Aug 30, 2017 at 11:12 AM, Martin Liška wrote:\n>>> Hi.\n>>>\n>>> Following patch compares also constraints of input and output operands of ASM statements.\n>>> Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.\n>>>\n>>> Ready to be installed?\n>>\n>> It's now no longer \"compare_tree_list_operand\" but compare_asm_constraint\n>> where there's no need to walk TREE_CHAIN either.\n>\n> Yep, it desires a refactoring.\n>\n> Is it fine for trunk?\n\nOk.\n\nRichard.\n\n> Martin\n>\n>>\n>> So can you refactor this a bit?\n>>\n>>> Martin\n>>>\n>>> gcc/ChangeLog:\n>>>\n>>> 2017-08-28 Martin Liska \n>>>\n>>> PR inline-asm/82001\n>>> * ipa-icf-gimple.c (func_checker::compare_tree_list_operand):\n>>> Compare TREE_PURPOSE of asm inputs and outputs.\n>>>\n>>> gcc/testsuite/ChangeLog:\n>>>\n>>> 2017-08-28 Martin Liska \n>>>\n>>> PR inline-asm/82001\n>>> * gcc.dg/ipa/pr82001.c: New test.\n>>> ---\n>>> gcc/ipa-icf-gimple.c | 10 ++++++++++\n>>> gcc/testsuite/gcc.dg/ipa/pr82001.c | 21 +++++++++++++++++++++\n>>> 2 files changed, 31 insertions(+)\n>>> create mode 100644 gcc/testsuite/gcc.dg/ipa/pr82001.c\n>>>\n>>>\n>","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list gcc-patches@gcc.gnu.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=gcc-patches-return-461157-incoming=patchwork.ozlabs.org@gcc.gnu.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org\n\theader.b=\"Cged6MQ7\"; dkim-atps=neutral","sourceware.org; auth=none"],"Received":["from sourceware.org (server1.sourceware.org [209.132.180.131])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xj4db53B3z9sN5\n\tfor ;\n\tWed, 30 Aug 2017 22:32:17 +1000 (AEST)","(qmail 120743 invoked by alias); 30 Aug 2017 12:32:09 -0000","(qmail 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(PDT)","MIME-Version":"1.0","In-Reply-To":"<3945dc16-16de-bcba-8231-44557d78948e@suse.cz>","References":"\n\t\n\t<3945dc16-16de-bcba-8231-44557d78948e@suse.cz>","From":"Richard Biener ","Date":"Wed, 30 Aug 2017 14:32:04 +0200","Message-ID":"","Subject":"Re: [PATCH] Fix IPA ICF with ASM statements (PR inline-asm/82001).","To":"=?utf-8?q?Martin_Li=C5=A1ka?= ","Cc":"GCC Patches ","Content-Type":"text/plain; charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable","X-IsSubscribed":"yes"}}]