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From: "jtaylor.debian at googlemail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/59390] New: presence of __attribute__((target("fma"))) declaration breaks __builtin_fma Date: Wed, 04 Dec 2013 20:46:00 -0000 [thread overview] Message-ID: <bug-59390-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59390 Bug ID: 59390 Summary: presence of __attribute__((target("fma"))) declaration breaks __builtin_fma Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: jtaylor.debian at googlemail dot com compiling this code leads to a compilation error on -O3: #include "math.h" void fun() __attribute__((target("fma"))); void other_fun(double *restrict out, double * restrict a, double * restrict b, double * restrict c, int n) { int i; for (i = 0; i < n; i++) { out[i] = fma(a[i], b[i], c[i]); } } $ cc-4.9 fma.c -c -std=c99 -O3 fma.c: In function ‘other_fun’: fma.c:9:21: error: ‘__builtin_ia32_vfmaddpd’ needs isa option -m32 -mfma4 -mfma out[i] = fma(a[i], b[i], c[i]); ^ removing the attribute from the unused declaration fixes it, as does using -fno-builtin or a lower optimization level. $ gcc-4.9 -v Using built-in specs. COLLECT_GCC=/home/jtaylor/tmp/gcc-local/bin/../bin/gcc COLLECT_LTO_WRAPPER=/home/jtaylor/tmp/gcc-local/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /home/jtaylor/tmp/gcc/configure --enable-languages=c,c++,fortran --enable-tls --prefix=/home/jtaylor/tmp/gcc-local --with-gmp=/usr --with-mpfr=/usr --with-mpc=/usr --with-cloog=/usr --with-ppl=/usr --with-isl=/usr Thread model: posix gcc version 4.9.0 20131204 (experimental) (GCC) also affects gcc 4.8.1 >From gcc-bugs-return-436671-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Dec 04 20:59:14 2013 Return-Path: <gcc-bugs-return-436671-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org> Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 23008 invoked by alias); 4 Dec 2013 20:59:14 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: <gcc-bugs.gcc.gnu.org> List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/> List-Post: <mailto:gcc-bugs@gcc.gnu.org> List-Help: <mailto:gcc-bugs-help@gcc.gnu.org> Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 19393 invoked by uid 48); 4 Dec 2013 20:57:56 -0000 From: "octoploid at yandex dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug lto/58251] -flto causes ICE lto1: internal compiler error: in splice_child_die, at dwarf2out.c:4706 Date: Wed, 04 Dec 2013 20:59:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: lto X-Bugzilla-Version: 4.8.1 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: octoploid at yandex dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: <bug-58251-4-04HyiDNy65@http.gcc.gnu.org/bugzilla/> In-Reply-To: <bug-58251-4@http.gcc.gnu.org/bugzilla/> References: <bug-58251-4@http.gcc.gnu.org/bugzilla/> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2013-12/txt/msg00326.txt.bz2 Content-length: 604 http://gcc.gnu.org/bugzilla/show_bug.cgi?idX251 Markus Trippelsdorf <octoploid at yandex dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |octoploid at yandex dot com --- Comment #2 from Markus Trippelsdorf <octoploid at yandex dot com> --- (In reply to David Kredba from comment #1) > I can reproduce this with Gentoo gcc-4.8.2 and new KDE's kig package 4.11.4. > > How to debug this please? http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction
next reply other threads:[~2013-12-04 20:46 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-12-04 20:46 jtaylor.debian at googlemail dot com [this message] 2013-12-05 7:10 ` [Bug target/59390] " ubizjak at gmail dot com 2013-12-05 10:52 ` rguenth at gcc dot gnu.org 2013-12-05 19:24 ` tmsriram at google dot com 2013-12-06 0:34 ` tmsriram at google dot com 2013-12-11 20:06 ` tmsriram at gcc dot gnu.org 2021-08-09 7:30 ` pinskia at gcc dot gnu.org 2023-12-04 3:10 ` pinskia at gcc dot gnu.org
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