Bug 444996 - glibc cacoshl() miscompiled by gcc-4.3
Summary: glibc cacoshl() miscompiled by gcc-4.3
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: glibc
Version: 9
Hardware: powerpc
OS: Linux
low
low
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: F9Target
TreeView+ depends on / blocked
 
Reported: 2008-05-02 16:59 UTC by Bill Nottingham
Modified: 2016-11-24 12:45 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2008-12-30 17:08:50 UTC


Attachments (Terms of Use)


Links
System ID Priority Status Summary Last Updated
GNU Compiler Collection 36090 None None None Never

Description Bill Nottingham 2008-05-02 16:59:09 UTC
Description of problem:

See: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36090

Version-Release number of selected component (if applicable):

glibc-2.8-2

Comment 1 Will Woods 2008-05-05 15:05:24 UTC
Should be fixed in glibc-2.8-3. Build available here:
http://koji.fedoraproject.org/koji/buildinfo?buildID=48111


Comment 2 Will Woods 2008-05-08 16:37:17 UTC
Can someone verify the fix, or give me a suggestion about how to verify it?

Comment 3 Jakub Jelinek 2008-05-08 16:51:32 UTC
It wasn't fixed, just worked around.  The real fix is being checked into GCC
today, so too late for F9.
Anyway, to verify cacoshl etc., just look for
build-ppc64-linuxnptl/math/test-ldouble.out
and
build-ppc64-linuxnptl/math/test-ildoubl.out
in TESTING DETAILS in glibc 2.8-2 vs. 2.8-3 ppc64 build.log.
In 2.8-2 you will see a lot of errors, in 2.8-3 it isn't present (because the
test succeeded).
On ppc/ppc64 you need to ignore all the power6/ failures, because the lame koji
buildboxes don't have Altivec support, to get a clean testing you need to build
on Power6 or at least some Power box with Altivec ISA (e.g. G5).


Comment 4 Will Woods 2008-05-09 20:25:53 UTC
Thanks for the info, Jakub. Since we have a workaround in F9 I'm going to move
this off the blocker list.

I'm moving it to F9Target, under the assumption that the real fix will show up
as a F9 update.

Comment 5 Bug Zapper 2008-05-14 10:32:11 UTC
Changing version to '9' as part of upcoming Fedora 9 GA.
More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 6 Ulrich Drepper 2008-12-30 17:08:50 UTC
The new gcc has long been deployed.  Closing.


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