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Bug 808285 - gcc releases up to 4.6.2 triggers ICE when compiling Gambit Scheme at -O2 on ppc64
Summary: gcc releases up to 4.6.2 triggers ICE when compiling Gambit Scheme at -O2 on ...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: gcc
Version: 6.4
Hardware: ppc64
OS: Linux
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Jakub Jelinek
QA Contact: qe-baseos-tools-bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-03-30 03:34 UTC by Michel Lind
Modified: 2014-09-30 16:35 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-09-30 16:35:52 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Build log on fedora-16-ppc64 (58.25 KB, text/x-log)
2012-03-30 03:34 UTC, Michel Lind 		no flags Details
Preprocessed source that triggered the internal compiler error (959.50 KB, application/octet-stream)
2012-03-30 03:36 UTC, Michel Lind 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
GNU Compiler Collection 52829 0 None None None Never

Description Michel Lind 2012-03-30 03:34:44 UTC 
Created attachment 573869 [details]
Build log on fedora-16-ppc64

Description of problem:
gambit-c up to version 4.6.3 builds cleanly on ppc64, but this is no longer the case with the latest two releases

Version-Release number of selected component (if applicable):
gambit-c-4.6.5-1.el6

How reproducible:
Always

Steps to Reproduce:
1. fedpkg clone gambit-c && cd gambit-c
2. fedpkg switch-branch el6 && fedpkg srpm
3. rpm -i gambit-c-*.src.rpm
4. rpmbuild -bb --with ppc64 gambit-c.spec
  
Actual results:
See attached log for 4.6.5 (on Fedora 16; the EPEL 6 target in mock is currently broken)

Expected results:
Build succeeds

Additional info:
Comment 1 Michel Lind 2012-03-30 03:36:58 UTC 
Created attachment 573870 [details]
Preprocessed source that triggered the internal compiler error
Comment 2 Michel Lind 2012-03-30 05:57:03 UTC 
Reported upstream:

  http://www.iro.umontreal.ca/~gambit/bugzilla/show_bug.cgi?id=155
Comment 3 Michel Lind 2012-04-02 04:16:31 UTC 
This bug is fixed in GCC 4.7.0 (as tested on the PPC test machine's fedora-rawhide-ppc64 target) but present as late as GCC 4.6.2 (tested on the fedora-16-ppc64 target) as well as the GCC 4.4.6 release shipping with EPEL 6.

Compiling with -O1 (which is the default up to Gambit 4.6.3) works around this problem, but upstream points out that it's a GCC problem.

Upstream bug report: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52829
Comment 5 RHEL Program Management 2012-05-03 05:31:49 UTC 
Since RHEL 6.3 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.
Comment 6 RHEL Program Management 2012-07-10 08:35:33 UTC 
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Comment 7 RHEL Program Management 2012-07-10 23:14:32 UTC 
This request was erroneously removed from consideration in Red Hat Enterprise Linux 6.4, which is currently under development.  This request will be evaluated for inclusion in Red Hat Enterprise Linux 6.4.
Comment 9 RHEL Program Management 2012-12-14 08:32:28 UTC 
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Comment 10 RHEL Program Management 2014-09-30 16:35:52 UTC 
Development Management has reviewed and declined this request.
You may appeal this decision by reopening this request.
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