From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22773 invoked by alias); 27 Jul 2014 19:39:16 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 21956 invoked by uid 48); 27 Jul 2014 19:39:07 -0000 From: "gcc at crg4 dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/61929] New: Graphite: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence) Date: Sun, 27 Jul 2014 19:39:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: gcc at crg4 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: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-07/txt/msg01780.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D61929 Bug ID: 61929 Summary: Graphite: Banerjee and Omega differ on distance vectors (internal compiler error in compute_affine_dependence) Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: gcc at crg4 dot com -fcheck-data-deps finds a discrepancy between Banerjee and Omega in gcc 4.9 when compiling the latest RIES source. The error message is: (Number of distance vectors differ: Banerjee has 1, Omega has 2. Banerjee dist vectors: 0=20 Omega dist vectors: 0=20 1=20 data dependence relation: (Data Dep:=20 #(Data Ref:=20 # bb: 44=20 # stmt: debug_L.555_92 =3D debug_L; # ref: debug_L # base_object: MEM[(short int *)&debug_L]; #) #(Data Ref:=20 # bb: 44=20 # stmt: debug_L =3D debug_L.568_93; # ref: debug_L # base_object: MEM[(short int *)&debug_L]; #) inner loop index: 0 loop nest: (1 ) distance_vector: 0=20 distance_vector: 1=20 direction_vector: =3D direction_vector: + ) ) ries.c: In function =E2=80=98set_debug_opts=E2=80=99: ries.c:10391:6: internal compiler error: in compute_affine_dependence, at tree-data-ref.c:4233 void set_debug_opts(char * str) ^ Please submit a full bug report, with preprocessed source if appropriate. ---- The RIES source is available at http://www.mrob.com/pub/ries/src/ries.c.txt and is self-contained (no .h files etc.). I can cause the error with gcc -o ries ries.c -lm -O1 -fcheck-data-deps but not gcc -o ries ries.c -lm -O0 -fcheck-data-deps however I cannot narrow this down to a particular optimization causing the difficulty since gcc -o ries ries.c -lm -O1 -fcheck-data-deps -fno-branch-count-reg -fno-combine-stack-adjustments -fno-compare-elim -fno-cprop-registers -fno-defer-pop -fno-forward-propagate -fno-guess-branch-probability -fno-if-conversion -fno-if-conversion2 -fno-inline-functions-called-once -fno-ipa-profile -fno-ipa-pure-const -fno-ipa-reference -fno-merge-constants -fno-move-loop-invariants -fno-shrink-wrap -fno-split-wide-types -fno-tree-bit-ccp -fno-tree-ccp -fno-tree-ch -fno-tree-copy-prop -fno-tree-copyrename -fno-tree-dce -fno-tree-dominator-opts -fno-tree-dse -fno-tree-fre -fno-tree-pta -fno-tree-sink -fno-tree-slsr -fno-tree-sra -fno-tree-ter still causes the error. It appears that at least one of the Omega and Baner= jee algorithms are incorrect. I am running > gcc -v Using built-in specs. COLLECT_GCC=3Dgcc COLLECT_LTO_WRAPPER=3D/usr/lib/gcc/x86_64-linux-gnu/4.9/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion=3D'Ubuntu 4.9.1-1ubuntu2~14.04.3' --with-bugurl=3Dfile:///usr/share/doc/gcc-4.9/READM= E.Bugs --enable-languages=3Dc,c++,java,go,d,fortran,objc,obj-c++ --prefix=3D/usr --program-suffix=3D-4.9 --enable-shared --enable-linker-build-id --libexecdir=3D/usr/lib --without-included-gettext --enable-threads=3Dposix --with-gxx-include-dir=3D/usr/include/c++/4.9 --libdir=3D/usr/lib --enable-= nls --with-sysroot=3D/ --enable-clocale=3Dgnu --enable-libstdcxx-debug --enable-libstdcxx-time=3Dyes --enable-gnu-unique-object --disable-libmudfl= ap --disable-vtable-verify --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=3Dgtk --enable-gtk-cairo --with-java-home=3D/usr/lib/jvm/java-1.5.0-gcj-4.9-amd64/jre --enable-java-= home --with-jvm-root-dir=3D/usr/lib/jvm/java-1.5.0-gcj-4.9-amd64 --with-jvm-jar-dir=3D/usr/lib/jvm-exports/java-1.5.0-gcj-4.9-amd64 --with-arch-directory=3Damd64 --with-ecj-jar=3D/usr/share/java/eclipse-ecj.= jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=3Di686 --with-abi=3Dm64 --with-multilib-list=3Dm32,m64,mx32 --enable-multilib --with-tune=3Dgeneric --enable-checking=3Drelease --build=3Dx86_64-linux-gnu --host=3Dx86_64-linux-gnu --target=3Dx86_64-linux-gnu Thread model: posix gcc version 4.9.1 (Ubuntu 4.9.1-1ubuntu2~14.04.3) > uname -a Linux zed 3.2.0-56-generic #86-Ubuntu SMP Wed Oct 23 09:20:45 UTC 2013 x86_= 64 x86_64 x86_64 GNU/Linux I have no knowledge of either Graphite or RIES; I am merely reporting what appears to be a bug (indeed, as instructed by gcc itself). >>From gcc-bugs-return-457190-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Jul 27 19:39:37 2014 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 24533 invoked by alias); 27 Jul 2014 19:39:36 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 23921 invoked by uid 48); 27 Jul 2014 19:39:29 -0000 From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/61928] a fortran90 program compiles on hopper at NERSC but not under gfortran 4.9.0 Date: Sun, 27 Jul 2014 19:39:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org 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: version Message-ID: In-Reply-To: References: 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: 2014-07/txt/msg01781.txt.bz2 Content-length: 407 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61928 Andrew Pinski changed: What |Removed |Added ---------------------------------------------------------------------------- Version|unknown |4.9.0 --- Comment #1 from Andrew Pinski --- You are not linking with the linpack library.