[PATCH] Improve PR29433, don't duplicate identifier names in dwarf2out

[Mark Mitchell]

Richard Guenther wrote:
> On Thu, 30 Nov 2006, Richard Guenther wrote:
> 
>> On Thu, 30 Nov 2006, Andrew Pinski wrote:
>>
>>> On Thu, 2006-11-30 at 17:18 +0100, Richard Guenther wrote:
>>>> This patch changes dwarf2out.c to not duplicate the strings in
>>>> identifier nodes as these are collected in an obstack that is never freed.
>>>> dwarf2out.c never frees any of the xstrduped stuff either.
>>>>
>>>> This brings compile-time memory usage of PR29433 with -O0 -g down from
>>>> 3.9GB to 2.5GB which is about the same as for a -O0 compile.  (See the
>>>> C++ patch for PR29433 on how to bring this down to around 400MB).
>>>>
>>>> Bootstrapped on x86_64-unknown-linux-gnu, tests still running.
>>>>
>>>> Ok for mainline if they pass?
> 
> Btw, testing finished ok as expected.

This patch is OK, thanks!

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
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