Re: major 4.3.2 debugging regression
Re: major 4.3.2 debugging regression
- Subject: Re: major 4.3.2 debugging regression
- From: Chris Lattner <email@hidden>
- Date: Thu, 22 Mar 2012 13:41:09 -0700
On Mar 22, 2012, at 12:12 PM, Sean McBride wrote:
> On Thu, 22 Mar 2012 11:16:32 -0700, Chris Lattner said:
>>> So I was excited to see a dot release of Xcode, hoping it would fix
>> some of the many bugs... but, for me at least, it seems like a big fat
>> regression so far.
>>>
>>> Compared to 4.3.1, linking my app seems to take 10x longer, but when
>> it finally finished, Xcode just crashes when it starts the debug
>> session, with:
>>
>> This sounds really strange. Please do file a bug, we need to
>> investigate this.
>
> Thanks Chris and Han for your replies.
>
> Switching from lldb to gdb solves the crash, thanks.
>
> Additional investigation shows the culprit to be LTO. In fact, turning off LTO also stops the lldb crash. I went back and checked with 4.3.1 and this crash is definitely a regression.
>
> I filed: <rdar://11101372>
Very strange. I can't image how that's happening, but we'll definitely investigate. Thanks for the radar Sean!
-Chris
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