The Precise Pangolin has reached end of life, so this bug will not be
fixed for that release
** Changed in: gcc-4.6 (Ubuntu Precise)
Status: Triaged => Won't Fix
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This says status: fix released and milestone: precise-updates since 2012-05.
Is the bug forgotten or expired?
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https://bugs.launchpad.net/bugs/968766
Title:
GCC 4.6.3 (cc1) crashes
Any hope waiting a release of this fix to precise-backports?
I'm really disappointed with my situation, I'm trying hard to compile something
that needs gcc-4.7. The only way to achieve that without compiling it myself is
installing a test ppa,
Yes, it's sad Precise's gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) is still
broken.
If you want to (re)build MPFR with that, use (just) '-O2', or '-O3 -fno-
tree-vectorize'.
Or (build and) use any of FSF's / vanilla GCC 4.7.{0,1,2,3} or 4.8.0 ...
:-)
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** Changed in: gcc-linaro/4.7
Status: Fix Committed = Fix Released
** Changed in: gcc-linaro/4.6
Status: Fix Committed = Fix Released
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This bug was fixed in the package gcc-4.6 - 4.6.3-4ubuntu1
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gcc-4.6 (4.6.3-4ubuntu1) quantal; urgency=low
* Update to SVN 20120425 (r186817) from the gcc-4_6-branch.
- Fix PR middle-end/53084, PR lto/48246.
* Default to armv5t, soft float on armel.
gcc-4.6 (4.6.3-4)
** Branch linked: lp:debian/gnat-4.6
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Title:
GCC 4.6.3 (cc1) crashes when compiling MPFR 3.1.0
To manage notifications about this bug go to:
** Branch linked: lp:debian/gcc-4.6
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Title:
GCC 4.6.3 (cc1) crashes when compiling MPFR 3.1.0
To manage notifications about this bug go to:
Committed backports to Linaro GCC 4.6 and 4.7.
** Also affects: gcc-linaro/4.6
Importance: Undecided
Status: New
** Also affects: gcc-linaro/4.7
Importance: Medium
Assignee: Ulrich Weigand (uweigand)
Status: In Progress
** Changed in: gcc-linaro/4.6
Importance:
** Changed in: gcc
Status: In Progress = Fix Released
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Title:
GCC 4.6.3 (cc1) crashes when compiling MPFR 3.1.0
To manage notifications
** Branch linked: lp:~uweigand/gcc-linaro/lp-968766-4.7
** Branch linked: lp:~uweigand/gcc-linaro/lp-968766-4.6
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Title:
GCC 4.6.3 (cc1) crashes
Launchpad has imported 2 comments from the remote bug at
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52870.
If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
Thanks for taking the time to report this bug in the upstream bug
tracking system this is a tremendous help. Launchpad has the ability to
watch lots of upstream bug trackers and this can be done by following
the procedure documented at https://wiki.ubuntu.com/Bugs/Watches. I've
added the bug watch
This affects current FSF mainline as well. I've opened a GCC bugzilla report:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52870
** Bug watch added: GCC Bugzilla #52870
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52870
** Changed in: gcc-linaro
Status: Triaged = In Progress
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You mean current svn trunk?
I don't get this error with (released) GCC 4.6.3 nor 4.7.0, just with
Ubuntu's 4.6.3-1ubuntu3.
Also your test case from bugzilla works for me with both of these.
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Yip, in trunk. The fault is in the SLP vectoriser that are in trunk,
our 4.7, and our 4.6. They're not in the FSF 4.7.0 release.
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Title:
GCC
Program received signal SIGSEGV, Segmentation fault.
0x00806eb8 in supportable_widening_operation ()
(gdb) bt
#0 0x00806eb8 in supportable_widening_operation ()
#1 0x00b2b164 in ?? ()
#2 0x00b2bc12 in vect_pattern_recog ()
#3 0x00821045 in
** Changed in: gcc-4.6 (Ubuntu)
Importance: Undecided = Medium
** Changed in: gcc-4.6 (Ubuntu)
Status: New = Confirmed
** Changed in: gcc-4.6 (Ubuntu)
Status: Confirmed = Triaged
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not seen with the FSF branch, but with the Linaro 4.6 branch
** Also affects: gcc-linaro
Importance: Undecided
Status: New
** Also affects: gcc-4.6 (Ubuntu Precise)
Importance: Medium
Status: Triaged
** Changed in: gcc-4.6 (Ubuntu Precise)
Milestone: None =
could you provide the preprocessed source for the singular ICE as well?
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Title:
GCC 4.6.3 (cc1) crashes when compiling MPFR 3.1.0
To manage
Sure.
g++ -march=native -O3 -g -fno-strict-aliasing -DHONORS_CXXFLAGS -O2 -g -fPIC
-pipe -fno-implicit-templates -I. -I..
-I/mnt/linux-data-on-win7/Sage/sage-5.0.beta11-gcc-4.6.3-1ubuntu3/local
-I/mnt/linux-data-on-win7/Sage/sage-5.0.beta11-gcc-4.6.3-1ubuntu3/local/include
** Attachment added: Preprocessed Singular source cc1plus crashed on (with
'-O3').
https://bugs.launchpad.net/ubuntu/+source/gcc-4.6/+bug/968766/+attachment/2997415/+files/ccdVNSe9.out
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the cc1plus is another issue. now tracked in bug 972648
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Title:
GCC 4.6.3 (cc1) crashes when compiling MPFR 3.1.0
To manage notifications about
Thank you for the bug report. I've confirmed this with gcc-
linaro-4.6-2012.03+bzr106882 on x86_64:
michaelh@crucis:~/linaro/gcc/build/native-4.6/gcc$ PATH=.:$PATH ./xgcc -c -O3
-march=native -fno-use-linker-plugin ~/linaro/bugs/lp968766.i
../../mpfr-3.1.0/src/set_f.c: In function ‘mpfr_set_f’:
FWIW, I've built a vanilla GCC 4.6.3 from scratch (along with GMP
5.0.4, MPFR 3.1.0-p8, MPC 0.9, PPL 0.12, CLooG 0.15.11 and libelf
0.8.13), installed it (as well as the libraries) under /usr/local, and
don't get any crashes with that version. In particular, both MPFR and
Singular build just fine
P.S.:
$ LANG=en_US gcc-4.6.3 -v
Using built-in specs.
COLLECT_GCC=gcc-4.6.3
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-linux-gnu/4.6.3/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../gcc-4.6.3/configure -v --prefix=/usr/local
--program-suffix=-4.6.3
Just checked: It's really only that single file of MPFR (set_f.c)
Ubuntu's current GCC / cc1 crashes on with '-O3'.
After 'make' failed in the first place, I just took the libtool command
(/bin/bash ../libtool --tag=CC --mode=compile gcc ...), replaced the
two occurrences of '-O3' by '-O2',
Similar for Singular (3-1-3-3): g++ / cc1plus crashes with -O3, builds
with -O2 instead.
Hopefully Precise won't ship with a broken compiler... Haven't had such
issues with GCC 4.6.3 installations I built myself.
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