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* [Bug pch/54050] New: chaining
@ 2012-07-20 14:09 wbrana at gmail dot com
  2012-07-20 15:34 ` [Bug pch/54050] chaining pinskia at gcc dot gnu.org
  2012-07-20 18:02 ` steven at gcc dot gnu.org
  0 siblings, 2 replies; 3+ messages in thread
From: wbrana at gmail dot com @ 2012-07-20 14:09 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54050

             Bug #: 54050
           Summary: chaining
    Classification: Unclassified
           Product: gcc
           Version: 4.7.1
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: pch
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: wbrana@gmail.com


GCC could support chaining of pch, which is supported by clang:

http://clang.llvm.org/docs/PCHInternals.html

Precompiled headers can be chained. When you create a PCH while including an
existing PCH, Clang can create the new PCH by referencing the original file and
only writing the new data to the new file. For example, you could create a PCH
out of all the headers that are very commonly used throughout your project, and
then create a PCH for every single source file in the project that includes the
code that is specific to that file, so that recompiling the file itself is very
fast, without duplicating the data from the common headers for every file.


^ permalink raw reply	[flat|nested] 3+ messages in thread
* [Bug pch/54050] chaining
  2012-07-20 14:09 [Bug pch/54050] New: chaining wbrana at gmail dot com
@ 2012-07-20 15:34 ` pinskia at gcc dot gnu.org
  2012-07-20 18:02 ` steven at gcc dot gnu.org
  1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-07-20 15:34 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54050

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-07-20 15:33:47 UTC ---
I don't think PCH will ever support this because nobody is working on PCH but
PPH might handle this (and might already does).


^ permalink raw reply	[flat|nested] 3+ messages in thread
* [Bug pch/54050] chaining
  2012-07-20 14:09 [Bug pch/54050] New: chaining wbrana at gmail dot com
  2012-07-20 15:34 ` [Bug pch/54050] chaining pinskia at gcc dot gnu.org
@ 2012-07-20 18:02 ` steven at gcc dot gnu.org
  1 sibling, 0 replies; 3+ messages in thread
From: steven at gcc dot gnu.org @ 2012-07-20 18:02 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54050

Steven Bosscher <steven at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-07-20
                 CC|                            |steven at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #2 from Steven Bosscher <steven at gcc dot gnu.org> 2012-07-20 18:02:42 UTC ---
I like the idea, though.


^ permalink raw reply	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2012-07-20 18:02 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-07-20 14:09 [Bug pch/54050] New: chaining wbrana at gmail dot com
2012-07-20 15:34 ` [Bug pch/54050] chaining pinskia at gcc dot gnu.org
2012-07-20 18:02 ` steven at gcc dot gnu.org

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