Bug 1724671 - miscompilation: no space allocated for internal object
Summary: miscompilation: no space allocated for internal object
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: clang
Version: 29
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Tom Stellard
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-06-27 13:50 UTC by Stas Sergeev
Modified: 2019-11-27 22:58 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-11-27 22:58:04 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)
test case (539 bytes, text/x-csrc)
2019-06-27 13:50 UTC, Stas Sergeev
no flags Details


Links
System ID Private Priority Status Summary Last Updated
LLVM 40831 0 None None None 2019-06-27 13:50:41 UTC

Description Stas Sergeev 2019-06-27 13:50:41 UTC
Created attachment 1585179 [details]
test case

Description of problem:
Attached example compiles and works properly with g++.
But with clang++ it breaks.

Version-Release number of selected component (if applicable):
clang-7.0.1-6.fc29.x86_64

How reproducible:
easily

Steps to Reproduce:
1. compile the attached test-case
2. if compiled, run it

Actual results:
static_assert triggers due to bad object size.
If removed, then binary compiles and prints wrong
object size

Expected results:
compiles, runs, prints valid object size

Additional info:
clang++ somehow forgets to allocate the space
for object B in object A.
Filled bug on llvm bugzilla, but nobody cares.

Comment 1 Ben Cotton 2019-10-31 19:05:21 UTC
This message is a reminder that Fedora 29 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora 29 on 2019-11-26.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
Fedora 'version' of '29'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 29 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 2 Ben Cotton 2019-11-27 22:58:04 UTC
Fedora 29 changed to end-of-life (EOL) status on 2019-11-26. Fedora 29 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.


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