[{"id":1767854,"web_url":"http://patchwork.ozlabs.org/comment/1767854/","msgid":"","list_archive_url":null,"date":"2017-09-13T12:41:27","subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","submitter":{"id":4349,"url":"http://patchwork.ozlabs.org/api/people/4349/","name":"Joseph Myers","email":"joseph@codesourcery.com"},"content":"On Wed, 13 Sep 2017, Szabolcs Nagy wrote:\n\n> with the new expf benchmark\n> https://sourceware.org/ml/libc-alpha/2017-08/msg01126.html\n\nWe need to get this reviewed. Is it being pinged? Are the benchtests \nmaintainers looking at it?","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list libc-alpha@sourceware.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=sourceware.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=libc-alpha-return-84549-incoming=patchwork.ozlabs.org@sourceware.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tsecure) header.d=sourceware.org header.i=@sourceware.org\n\theader.b=\"vRTvXTMP\"; 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 3xshB56qmSz9s72\n\tfor ;\n\tWed, 13 Sep 2017 22:41:49 +1000 (AEST)","(qmail 14540 invoked by alias); 13 Sep 2017 12:41:44 -0000","(qmail 13803 invoked by uid 89); 13 Sep 2017 12:41:44 -0000"],"DomainKey-Signature":"a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:date:from:to:cc:subject:in-reply-to:message-id\n\t:references:mime-version:content-type; q=dns; s=default; b=bCiKC\n\tfRfs0iO/nhi+a1UDtSYjNvPRDk2Tr5cDR+ootQjspz4eG2h95zAjqVbx3iZxpbVl\n\tBiAMzJf+iOl87XynlPnvq1dDSr1nelpWrhtvwSIzWx+96jEYFF31hvX+aZB6AV/Y\n\tmoCso7/26H7VOitU1JLkrv+oshqDdnKWvkyaLo=","DKIM-Signature":"v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:date:from:to:cc:subject:in-reply-to:message-id\n\t:references:mime-version:content-type; s=default; bh=8oofm2uAH2u\n\tpUkuzaOnNAEINgoo=; b=vRTvXTMPvTF8tahju6wjxLTRD0PC3ycnBxJC036PO/t\n\tJlCpzAplymOsHHaxOX7Syg7K8oAw0D2ZP3c0shq1Z1UAp8pai+nW3+d1Z09ntki5\n\txLY+lEM1w9crHxpu1uTcvhp3j5gqdSDBS6OCy6XNMgB6QXkmlrF8VYriv02qwFm4\n\t=","Mailing-List":"contact libc-alpha-help@sourceware.org; run by ezmlm","Precedence":"bulk","List-Id":"","List-Unsubscribe":"","List-Subscribe":"","List-Archive":"","List-Post":"","List-Help":",\n\t","Sender":"libc-alpha-owner@sourceware.org","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-2.0 required=5.0 tests=AWL, BAYES_00,\n\tRCVD_IN_DNSWL_NONE, SPF_PASS,\n\tURIBL_RED autolearn=ham version=3.3.2 spammy=Hx-languages-length:342","X-HELO":"relay1.mentorg.com","Date":"Wed, 13 Sep 2017 12:41:27 +0000","From":"Joseph Myers ","To":"Szabolcs Nagy ","CC":"GNU C Library , ","Subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","In-Reply-To":"<59B90C2E.9050806@arm.com>","Message-ID":"","References":"<59B90BDF.7000503@arm.com> <59B90C2E.9050806@arm.com>","User-Agent":"Alpine 2.20 (DEB 67 2015-01-07)","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"US-ASCII\"","X-ClientProxiedBy":"svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) To\n\tsvr-ies-mbx-01.mgc.mentorg.com (139.181.222.1)"}},{"id":1768125,"web_url":"http://patchwork.ozlabs.org/comment/1768125/","msgid":"","list_archive_url":null,"date":"2017-09-13T20:13:27","subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","submitter":{"id":4349,"url":"http://patchwork.ozlabs.org/api/people/4349/","name":"Joseph Myers","email":"joseph@codesourcery.com"},"content":"On Wed, 13 Sep 2017, Szabolcs Nagy wrote:\n\n> - disable math_errf.c and e_exp2f_data.c on i386 and ia64.\n\nsysdeps/m68k/m680x0/fpu has its own e_expf.c and e_exp2f.c, I would expect \nthose new files to be disabled there as well.","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list libc-alpha@sourceware.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=sourceware.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=libc-alpha-return-84575-incoming=patchwork.ozlabs.org@sourceware.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tsecure) header.d=sourceware.org header.i=@sourceware.org\n\theader.b=\"y3WsxX5+\"; 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 3xstCY0nNgz9sBW\n\tfor ;\n\tThu, 14 Sep 2017 06:13:44 +1000 (AEST)","(qmail 2544 invoked by alias); 13 Sep 2017 20:13:38 -0000","(qmail 2529 invoked by uid 89); 13 Sep 2017 20:13:37 -0000"],"DomainKey-Signature":"a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:date:from:to:cc:subject:in-reply-to:message-id\n\t:references:mime-version:content-type; q=dns; s=default; b=N17bz\n\tOISvl8mxSlQLKBcvMc8/3cRyABvkC9gzHXWoC0bq90C/UXCM7F7A2KjF94lmBZ7Z\n\tRDeK+y7Ay6NXZ06vdmYdOJOhBogEI9qT/RM2soXT4R2t0xyGy+7dmt+UP8Y6mgoY\n\tQ/YKlOdUspp2VDLTIy2FxHEkPYCNZwCGmsdUC0=","DKIM-Signature":"v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:date:from:to:cc:subject:in-reply-to:message-id\n\t:references:mime-version:content-type; s=default; bh=r08TfoyYLYM\n\tW+weCDLZfAyrfn7k=; b=y3WsxX5+tnJzlIp08RT/PegwSDlCMPWB3unqB/l6gmo\n\tijhiilr4/PIQLDV6FPrn6K4oJWsHpba3qhxOVLCeky/3Pjq88RqSlCggLrk0yLJ5\n\t7qq+uS57uHL3/zrCB4UROIn877Se/Dck4cGWKPBpm9f6erK7OYWFfF+iB94K9pXM\n\t=","Mailing-List":"contact libc-alpha-help@sourceware.org; run by ezmlm","Precedence":"bulk","List-Id":"","List-Unsubscribe":"","List-Subscribe":"","List-Archive":"","List-Post":"","List-Help":",\n\t","Sender":"libc-alpha-owner@sourceware.org","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-2.0 required=5.0 tests=AWL, BAYES_00,\n\tRCVD_IN_DNSWL_NONE, SPF_PASS,\n\tURIBL_RED autolearn=ham version=3.3.2 spammy=","X-HELO":"relay1.mentorg.com","Date":"Wed, 13 Sep 2017 20:13:27 +0000","From":"Joseph Myers ","To":"Szabolcs Nagy ","CC":"GNU C Library , ","Subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","In-Reply-To":"<59B90C2E.9050806@arm.com>","Message-ID":"","References":"<59B90BDF.7000503@arm.com> <59B90C2E.9050806@arm.com>","User-Agent":"Alpine 2.20 (DEB 67 2015-01-07)","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"US-ASCII\"","X-ClientProxiedBy":"svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) To\n\tsvr-ies-mbx-01.mgc.mentorg.com (139.181.222.1)"}},{"id":1768468,"web_url":"http://patchwork.ozlabs.org/comment/1768468/","msgid":"<59BA4E34.2050902@arm.com>","list_archive_url":null,"date":"2017-09-14T09:39:00","subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","submitter":{"id":65667,"url":"http://patchwork.ozlabs.org/api/people/65667/","name":"Szabolcs Nagy","email":"szabolcs.nagy@arm.com"},"content":"On 13/09/17 21:13, Joseph Myers wrote:\n> On Wed, 13 Sep 2017, Szabolcs Nagy wrote:\n> \n>> - disable math_errf.c and e_exp2f_data.c on i386 and ia64.\n> \n> sysdeps/m68k/m680x0/fpu has its own e_expf.c and e_exp2f.c, I would expect \n> those new files to be disabled there as well.\n> \n\nyes i made a number of mistakes:\n- m68k/m680x0/fpu does not need the math_errf/e_exp2f_data code\n- powerpc64/fpu/multiarch/e_expf-ppc64.c needs to suppress\nlibm_hidden_proto too now that it overrides __expf\n(otherwise there is a hidden proto of __ieee754_expf_ppc64)\n- sysdeps/*/w_expf.c does not work to include srcdir/math/w_expf.c\nbecause the generated builddir/math/w_expf.c gets included.\n(i'm not yet sure what the right fix for this is, i can just\ncopy the math/w_expf.c code around instead of including it\nor use a file name that does not collide with the generated files)\n- the new versioned symbols are missing on ia64 too because\nit uses its own w_expf wrappers.\n\ni'm trying to fix these.","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list libc-alpha@sourceware.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=sourceware.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=libc-alpha-return-84601-incoming=patchwork.ozlabs.org@sourceware.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tsecure) header.d=sourceware.org header.i=@sourceware.org\n\theader.b=\"q9+0f7Ih\"; dkim-atps=neutral","sourceware.org; auth=none","spf=none (sender IP is )\n\tsmtp.mailfrom=Szabolcs.Nagy@arm.com; "],"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 3xtD51095lz9s06\n\tfor ;\n\tThu, 14 Sep 2017 19:39:16 +1000 (AEST)","(qmail 90354 invoked by alias); 14 Sep 2017 09:39:11 -0000","(qmail 90328 invoked by uid 89); 14 Sep 2017 09:39:10 -0000"],"DomainKey-Signature":"a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:message-id:date:from:mime-version:to:cc\n\t:subject:references:in-reply-to:content-type\n\t:content-transfer-encoding; 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When you need a new \nw_expf.c, put it in sysdeps/ieee754/flt-32 instead.","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list libc-alpha@sourceware.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=sourceware.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=libc-alpha-return-84607-incoming=patchwork.ozlabs.org@sourceware.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tsecure) header.d=sourceware.org header.i=@sourceware.org\n\theader.b=\"xmkRzsso\"; 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 3xtGyK2RDhz9s7g\n\tfor ;\n\tThu, 14 Sep 2017 21:48:41 +1000 (AEST)","(qmail 20398 invoked by alias); 14 Sep 2017 11:48:35 -0000","(qmail 130529 invoked by uid 89); 14 Sep 2017 11:48:25 -0000"],"DomainKey-Signature":"a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:date:from:to:cc:subject:in-reply-to:message-id\n\t:references:mime-version:content-type; q=dns; s=default; b=l9wMm\n\tqT0dkMVS3/admg60QQJj3w8MEDuV9f2cwGT5qzt/IUtcnrYBetXtisEa0gDKXmnK\n\t4effypbI/d2lYz8Ks6BBYwcR5fXdqrPwwA5Q3fJ115wq/4UOau0epTfVcyo2r3Lo\n\t3P1fqiu+m9W0kiK48opY3D9Y7tLezcgsJ9EHeo=","DKIM-Signature":"v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:date:from:to:cc:subject:in-reply-to:message-id\n\t:references:mime-version:content-type; s=default; bh=h662UV+wwEq\n\t8vMcAQk9bCtrY/vI=; b=xmkRzssocA6XX+xQIKRLOfS5TrdD98X8siKk0TYvVKH\n\tHIWm1ZvbwTAjWYWjv8ZR5tkD/f6iOuLXO/9au4/Ler5ekwydwAwCxUcZFJwYg47D\n\tI9Fi+cJTl3mA3bcKrkw/EmCmTt75Q2LhYoosLEKT/q7EQhuCoW+JVDYEfYg2xaZI\n\t=","Mailing-List":"contact libc-alpha-help@sourceware.org; run by ezmlm","Precedence":"bulk","List-Id":"","List-Unsubscribe":"","List-Subscribe":"","List-Archive":"","List-Post":"","List-Help":",\n\t","Sender":"libc-alpha-owner@sourceware.org","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-2.0 required=5.0 tests=AWL, BAYES_00,\n\tRCVD_IN_DNSWL_NONE, SPF_PASS,\n\tURIBL_RED autolearn=ham version=3.3.2 spammy=","X-HELO":"relay1.mentorg.com","Date":"Thu, 14 Sep 2017 11:48:02 +0000","From":"Joseph Myers ","To":"Szabolcs Nagy ","CC":", GNU C Library ","Subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","In-Reply-To":"<59BA4E34.2050902@arm.com>","Message-ID":"","References":"<59B90BDF.7000503@arm.com> <59B90C2E.9050806@arm.com>\n\t\n\t<59BA4E34.2050902@arm.com>","User-Agent":"Alpine 2.20 (DEB 67 2015-01-07)","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"US-ASCII\"","X-ClientProxiedBy":"svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) To\n\tsvr-ies-mbx-01.mgc.mentorg.com (139.181.222.1)"}},{"id":1768549,"web_url":"http://patchwork.ozlabs.org/comment/1768549/","msgid":"<59BA7034.1040303@arm.com>","list_archive_url":null,"date":"2017-09-14T12:04:04","subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","submitter":{"id":65667,"url":"http://patchwork.ozlabs.org/api/people/65667/","name":"Szabolcs Nagy","email":"szabolcs.nagy@arm.com"},"content":"On 14/09/17 10:39, Szabolcs Nagy wrote:\n> On 13/09/17 21:13, Joseph Myers wrote:\n>> On Wed, 13 Sep 2017, Szabolcs Nagy wrote:\n>>\n>>> - disable math_errf.c and e_exp2f_data.c on i386 and ia64.\n>>\n>> sysdeps/m68k/m680x0/fpu has its own e_expf.c and e_exp2f.c, I would expect \n>> those new files to be disabled there as well.\n>>\n> \n> yes i made a number of mistakes:\n> - m68k/m680x0/fpu does not need the math_errf/e_exp2f_data code\n> - powerpc64/fpu/multiarch/e_expf-ppc64.c needs to suppress\n> libm_hidden_proto too now that it overrides __expf\n> (otherwise there is a hidden proto of __ieee754_expf_ppc64)\n> - sysdeps/*/w_expf.c does not work to include srcdir/math/w_expf.c\n> because the generated builddir/math/w_expf.c gets included.\n> (i'm not yet sure what the right fix for this is, i can just\n> copy the math/w_expf.c code around instead of including it\n> or use a file name that does not collide with the generated files)\n\ni guess i can just do\n#include \nto make it clear that i want the file from the srcdir\n\n> - the new versioned symbols are missing on ia64 too because\n> it uses its own w_expf wrappers.\n\ni will try to add .symver directives to the ia64\nasm files in some ways.\n\nbut overall the symbol version fixes need a lot of\nchanges.. do we really need to carry asm math code\nfor barely supported targets? do ppl really care\nif m68k/ia64/i386 get suboptimal math code?","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list libc-alpha@sourceware.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=sourceware.org\n\t(client-ip=209.132.180.131; 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SFP:1101; SCL:1; SRVR:VI1PR0802MB2493;\n\tH:[10.2.206.69]; FPR:; SPF:None; PTR:InfoNoRecords; A:1; MX:1;\n\tLANG:en; ","Received-SPF":"None (protection.outlook.com: arm.com does not designate\n\tpermitted sender hosts)","SpamDiagnosticOutput":"1:99","SpamDiagnosticMetadata":"NSPM","X-OriginatorOrg":"arm.com","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"14 Sep 2017 12:04:07.5943\n\t(UTC)","X-MS-Exchange-CrossTenant-FromEntityHeader":"Hosted","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"VI1PR0802MB2493"}},{"id":1768564,"web_url":"http://patchwork.ozlabs.org/comment/1768564/","msgid":"","list_archive_url":null,"date":"2017-09-14T12:45:14","subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","submitter":{"id":4349,"url":"http://patchwork.ozlabs.org/api/people/4349/","name":"Joseph Myers","email":"joseph@codesourcery.com"},"content":"On Thu, 14 Sep 2017, Szabolcs Nagy wrote:\n\n> but overall the symbol version fixes need a lot of\n> changes.. do we really need to carry asm math code\n> for barely supported targets? do ppl really care\n> if m68k/ia64/i386 get suboptimal math code?\n\nThe first question would be whether it's suboptimal anyway. That needs \nbenchmarking on hardware, which presumably architecture maintainers could \ndo for m68k/ia64. For i386 there are both generic and SSE2 versions of \nexpf to benchmark.\n\nIt's far from obvious that just because the x87 f2xm1 instruction exists \nit's efficient to use (especially since it needs to produce a result to \nthe precision of long double, and expf only needs to produce a result to \nthe precision of float).","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list libc-alpha@sourceware.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=sourceware.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=libc-alpha-return-84610-incoming=patchwork.ozlabs.org@sourceware.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tsecure) header.d=sourceware.org header.i=@sourceware.org\n\theader.b=\"MS8MV4IZ\"; 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 3xtJD73lvHz9sRg\n\tfor ;\n\tThu, 14 Sep 2017 22:45:43 +1000 (AEST)","(qmail 43663 invoked by alias); 14 Sep 2017 12:45:37 -0000","(qmail 28646 invoked by uid 89); 14 Sep 2017 12:45:27 -0000"],"DomainKey-Signature":"a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:date:from:to:cc:subject:in-reply-to:message-id\n\t:references:mime-version:content-type; q=dns; s=default; b=XMKBI\n\t15zsG3Gioo7uQmOZeOjMeu3cE4s6sGaWa9vEJ6CminHAms8t4eXCJ2xyEf8fuNJk\n\tNp41aotVSXbw/5/3nEoqBs/CZI7JHSlj3DkL0eMikJUBv+Ay9iODYhvhoAg6DOVf\n\tbNFdhQzmkMeyQPGGy7R15VZASqBdk8xJmUfPDw=","DKIM-Signature":"v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:date:from:to:cc:subject:in-reply-to:message-id\n\t:references:mime-version:content-type; s=default; bh=GKK2dkryIjt\n\tAfOWSLPoW6SJK314=; b=MS8MV4IZEEPQhHa9UTZG96os3rZ03ISF4zSyreKZsEt\n\ttDv3gBZI0svRVhIYHpnpaHx/DCSKMN/oeb1AKqiC6Ibr6Pan2nWP1sIYj92fpfBU\n\tRtIEmrH/0+oUaHPSGq6D14snZlTF9GGeW+YmTfpj3vod9a7esOpti34fw3/uBx9s\n\t=","Mailing-List":"contact libc-alpha-help@sourceware.org; run by ezmlm","Precedence":"bulk","List-Id":"","List-Unsubscribe":"","List-Subscribe":"","List-Archive":"","List-Post":"","List-Help":",\n\t","Sender":"libc-alpha-owner@sourceware.org","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-2.0 required=5.0 tests=AWL, BAYES_00,\n\tRCVD_IN_DNSWL_NONE, SPF_PASS,\n\tURIBL_RED autolearn=ham version=3.3.2 spammy=Hx-languages-length:837","X-HELO":"relay1.mentorg.com","Date":"Thu, 14 Sep 2017 12:45:14 +0000","From":"Joseph Myers ","To":"Szabolcs Nagy ","CC":", GNU C Library ","Subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","In-Reply-To":"<59BA7034.1040303@arm.com>","Message-ID":"","References":"<59B90BDF.7000503@arm.com> <59B90C2E.9050806@arm.com>\n\t\n\t<59BA4E34.2050902@arm.com> <59BA7034.1040303@arm.com>","User-Agent":"Alpine 2.20 (DEB 67 2015-01-07)","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"US-ASCII\"","X-ClientProxiedBy":"svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) To\n\tsvr-ies-mbx-01.mgc.mentorg.com (139.181.222.1)"}},{"id":1768659,"web_url":"http://patchwork.ozlabs.org/comment/1768659/","msgid":"<59BA9B50.2080608@arm.com>","list_archive_url":null,"date":"2017-09-14T15:08:00","subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","submitter":{"id":65667,"url":"http://patchwork.ozlabs.org/api/people/65667/","name":"Szabolcs Nagy","email":"szabolcs.nagy@arm.com"},"content":"On 14/09/17 12:48, Joseph Myers wrote:\n> On Thu, 14 Sep 2017, Szabolcs Nagy wrote:\n> \n>> - sysdeps/*/w_expf.c does not work to include srcdir/math/w_expf.c\n>> because the generated builddir/math/w_expf.c gets included.\n>> (i'm not yet sure what the right fix for this is, i can just\n>> copy the math/w_expf.c code around instead of including it\n>> or use a file name that does not collide with the generated files)\n> \n> I'd suggest not having a srcdir/math/w_expf.c. When you need a new \n> w_expf.c, put it in sysdeps/ieee754/flt-32 instead.\n> \n\nwell eventually i need the w_expf.c at many places\nexcept in sysdeps/ieee754/flt-32 where the generic\ncode needs no wrapping.\n\nso i have to put it somewhere else such that the\ntarget specific w_expf.c can include it.","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list libc-alpha@sourceware.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=sourceware.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=libc-alpha-return-84627-incoming=patchwork.ozlabs.org@sourceware.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tsecure) header.d=sourceware.org header.i=@sourceware.org\n\theader.b=\"CYYjiEn1\"; dkim-atps=neutral","sourceware.org; auth=none","spf=none (sender IP is )\n\tsmtp.mailfrom=Szabolcs.Nagy@arm.com; "],"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 3xtMNm16L6z9sP1\n\tfor ;\n\tFri, 15 Sep 2017 01:08:23 +1000 (AEST)","(qmail 75912 invoked by alias); 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run by ezmlm","Precedence":"bulk","List-Id":"","List-Unsubscribe":"","List-Subscribe":"","List-Archive":"","List-Post":"","List-Help":",\n\t","Sender":"libc-alpha-owner@sourceware.org","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-2.1 required=5.0 tests=AWL, BAYES_00,\n\tRCVD_IN_DNSWL_NONE, SPF_HELO_PASS,\n\tSPF_PASS autolearn=ham version=3.3.2 spammy=","X-HELO":"EUR01-VE1-obe.outbound.protection.outlook.com","Message-ID":"<59BA9B50.2080608@arm.com>","Date":"Thu, 14 Sep 2017 16:08:00 +0100","From":"Szabolcs Nagy ","User-Agent":"Mozilla/5.0 (X11; Linux x86_64;\n\trv:31.0) Gecko/20100101 Thunderbird/31.8.0","MIME-Version":"1.0","To":"Joseph Myers ","CC":"nd@arm.com, GNU C Library ","Subject":"Re: [PATCH 1/4 v2] Optimized generic expf and exp2f with wrappers","References":"<59B90BDF.7000503@arm.com> <59B90C2E.9050806@arm.com>\n\t\n\t<59BA4E34.2050902@arm.com>\n\t","In-Reply-To":"","Content-Type":"text/plain; charset=windows-1252","Content-Transfer-Encoding":"7bit","X-ClientProxiedBy":"AM4P190CA0019.EURP190.PROD.OUTLOOK.COM\n\t(2603:10a6:200:56::29) To HE1PR0802MB2490.eurprd08.prod.outlook.com\n\t(2603:10a6:3:d9::22)","X-MS-PublicTrafficType":"Email","X-MS-Office365-Filtering-Correlation-Id":"ee6ea98b-54b9-49bb-f5c2-08d4fb82664c","X-MS-Office365-Filtering-HT":"Tenant","X-Microsoft-Antispam":"UriScan:; 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