[asterisk-bugs] [Asterisk 0017688]: [patch] GCC 4.2.x optimizations result in improper behavior of GSM codec

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
====================================================================== 
https://issues.asterisk.org/view.php?id=17688 
====================================================================== 
Reported By:                pprindeville
Assigned To:                
====================================================================== 
Project:                    Asterisk
Issue ID:                   17688
Category:                   Codecs/codec_gsm
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.6.2.9 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!): 278501 
Request Review:              
====================================================================== 
Date Submitted:             2010-07-22 13:17 CDT
Last Modified:              2010-07-23 02:44 CDT
====================================================================== 
Summary:                    [patch] GCC 4.2.x optimizations result in improper
behavior of GSM codec
Description: 
Two patches were originally reported in bug 11243, one to add additional
needed constraints on some asm() sequences that the codec uses, the other
to disable optimization that the compiler was doing which was resulting in
incorrect code.

Only the latter was committed.  It's been confirmed that both patches are
needed, at least until the code is restructured to allow correct
optimization by the compiler.


======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
related to          0011243 Distortion in Playback of .gsm files ov...
====================================================================== 

---------------------------------------------------------------------- 
 (0124896) mkeuter (reporter) - 2010-07-23 02:44
 https://issues.asterisk.org/view.php?id=17688#c124896 
---------------------------------------------------------------------- 
I tested the patch and it works fine for me. The distortions of gsm sound
files are gone. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-07-23 02:44 mkeuter        Note Added: 0124896                          
======================================================================