Bug 60811 - arc/arc.c:2135: possible bad argument to abs
Summary: arc/arc.c:2135: possible bad argument to abs
Status: RESOLVED FIXED
Alias: None
Product: gcc
Classification: Unclassified
Component: target (show other bugs)
Version: 4.9.0
: P3 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
Keywords:
Depends on:
Blocks: 60824
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Reported: 2014-04-10 18:10 UTC by David Binderman
Modified: 2014-04-11 18:48 UTC (History)
1 user (show)

See Also:
Host:
Target: arc
Build:
Known to work:
Known to fail:
Last reconfirmed: 2014-04-11 00:00:00


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Description David Binderman 2014-04-10 18:10:01 UTC
Static analyser cppcheck says

[trunk/gcc/config/arc/arc.c:2135]: (error) Invalid abs() argument nr 1. A non-boolean value is required.

Source code is

    gcc_assert (epilogue_p || abs (*first_offset <= 127));

Maybe better code might be

    gcc_assert (epilogue_p || abs (*first_offset) <= 127);
Comment 1 Jorn Wolfgang Rennecke 2014-04-11 14:28:48 UTC
Confirmed.  I also did a test-build in r209293 with current arc versions
of binutils/newlib.

Though it seems too insignificant to make a change that late
in phase 3, so I think this should wait for 4.10.

Although such a small straightforward bug-fix can hardly considered Copyrightable, I suppose you are technically the author of a patch, so
it would be SOP to name you in the ChangeLog - unless you don't want that.

Using the email from bugzilla, that would be:

David Bindermann  <dcb314@hotmail.com>

is that OK?
Comment 2 David Binderman 2014-04-11 14:44:58 UTC
(In reply to Jorn Wolfgang Rennecke from comment #1)
> Though it seems too insignificant to make a change that late
> in phase 3, so I think this should wait for 4.10.

Seems reasonable to me, but at worst, it's only going to break
one architecture and I think I'm right in saying arc isn't a
primary or secondary architecture.

> Although such a small straightforward bug-fix can hardly considered
> Copyrightable, I suppose you are technically the author of a patch, so
> it would be SOP to name you in the ChangeLog - unless you don't want that.

But I haven't written a patch, I've only reported a bug with a suggested solution.

I think who fixes it gets to put their name on the record, not me.
Comment 3 Jorn Wolfgang Rennecke 2014-04-11 18:05:16 UTC
Author: amylaar
Date: Fri Apr 11 18:04:43 2014
New Revision: 209311

URL: http://gcc.gnu.org/viewcvs?rev=209311&root=gcc&view=rev
Log:
        PR target/60811
        * config/arc/arc.c (arc_save_restore): Fix assert typo.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arc/arc.c
Comment 4 Jorn Wolfgang Rennecke 2014-04-11 18:48:33 UTC
Fixed with commit of comment #3.