RFR: 8047734 : Back out use of -Og

[Igor Veresov]

Looks good. Thanks!

igor

On Jul 8, 2014, at 5:42 PM, Mike Duigou <mike.duigou at oracle.com> wrote:

> I've rebased the webrev on the current hs-comp forest:
> 
> http://cr.openjdk.java.net/~mduigou/JDK-8047734/1/webrev/
> 
> Mike
> 
> On Jul 8 2014, at 17:15 , Igor Veresov <igor.veresov at oracle.com> wrote:
> 
>> Hi Mike,
>> 
>> Thanks for fixing this. Your diff against hs-comp is going to be a bit different though. We already have changes that remove Og for clang (which doesn’t support -Og at all). See http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/8cfc6ff87733
>> 
>> igor
>> 
>> On Jul 8, 2014, at 3:33 PM, Mike Duigou <mike.duigou at oracle.com> wrote:
>> 
>>> Hello all;
>>> 
>>> This change backs out use of the optimized for debugging "-Og" in favour of the traditional "-O0". Initial evaluation seemed to indicate that "-Og" provided all the necessary debugging information but this has turned out to be incorrect. It seems that information is missing with the "-Og" optimization option combined with the default "-g" symbols option. More investigation is needed but that will be done in a future changeset.
>>> 
>>> jbsbug: https://bugs.openjdk.java.net/browse/JDK-8047734
>>> webrev: http://cr.openjdk.java.net/~mduigou/JDK-8047734/0/webrev/
>>> 
>>> (diffs in the generated configure script are not part of this review)
>>> 
>>> The changes will be pushed through the hotspot-compiler repo.
>>> 
>>> Mike
>> 
>