[zorg] r284153 - Added support for ThinLTO.

[Galina Kistanova via llvm-commits]

Hi Teresa,

We do have a LTO builder with gold:
http://lab.llvm.org:8011/builders/clang-3stage-ubuntu.
Anyway, here is the a short explanation of how to add a bot:
http://llvm.org/docs/HowToAddABuilder.html
Hope it will help. Please feel free to ask if you have more questions.

Thanks

Galina



On Thu, Oct 13, 2016 at 2:56 PM, Teresa Johnson <tejohnson at google.com>
wrote:

> Thanks for setting up an lld ThinLTO bot. I've been meaning do so for
> gold, but have no idea where to start. Does anyone have any pointers they
> could send me on how to set up bots?
> Thanks,
> Teresa
>
>
> On Thu, Oct 13, 2016, 2:46 PM Galina Kistanova via llvm-commits <
> llvm-commits at lists.llvm.org> wrote:
>
>> I am going to set it it builder definition, also I might change the
>> implementation in favor of cmake option LLVM_ENABLE_LTO={THIN,FULL}, which
>> I am in the middle of checking.
>>
>>
>>  {'name' : "clang-with-thin-lto-ubuntu",
>>          'slavenames' : ["ps4-buildslave1a"],
>>          'builddir' : "clang-with-thin-lto-ubuntu",
>>          'factory': ClangLTOBuilder.getClangWithLTOBuildFactory(
>> lto='thin'),
>>          'category'   : 'lld'},
>>
>>
>> Thanks
>>
>> Galina
>>
>>
>>
>> On Thu, Oct 13, 2016 at 1:13 PM, Davide Italiano <davide at freebsd.org>
>> wrote:
>>
>> On Thu, Oct 13, 2016 at 12:32 PM, Galina Kistanova via llvm-commits
>> <llvm-commits at lists.llvm.org> wrote:
>> > Author: gkistanova
>> > Date: Thu Oct 13 14:32:23 2016
>> > New Revision: 284153
>> >
>> > URL: http://llvm.org/viewvc/llvm-project?rev=284153&view=rev
>> > Log:
>> > Added support for ThinLTO.
>> >
>>
>> Thanks. I may miss something, but where are you actually setting
>> `-flto=thin` ?
>>
>> > Modified:
>> >     zorg/trunk/zorg/buildbot/builders/ClangLTOBuilder.py
>> >
>> > Modified: zorg/trunk/zorg/buildbot/builders/ClangLTOBuilder.py
>> > URL: http://llvm.org/viewvc/llvm-project/zorg/trunk/zorg/
>> buildbot/builders/ClangLTOBuilder.py?rev=284153&
>> r1=284152&r2=284153&view=diff
>> > ============================================================
>> ==================
>> > --- zorg/trunk/zorg/buildbot/builders/ClangLTOBuilder.py (original)
>> > +++ zorg/trunk/zorg/buildbot/builders/ClangLTOBuilder.py Thu Oct 13
>> 14:32:23 2016
>> > @@ -233,6 +233,7 @@ def getClangWithLTOBuildFactory(
>> >             jobs  = None,
>> >             extra_configure_args = None,
>> >             compare_last_2_stages = True,
>> > +           lto = None, # The string gets passed to -flto flag as is.
>> Like -flto=thin.
>> >             env = None):
>> >
>> >      # Set defaults
>> > @@ -305,11 +306,16 @@ def getClangWithLTOBuildFactory(
>> >      # Build all the remaining stages with exactly the same
>> configuration.
>> >
>> >      # Set proper compile and link flags.
>> > +    if lto:
>> > +        lto = '-flto=%s' % lto
>> > +    else:
>> > +        lto = '-flto'
>> > +
>> >      CmakeCommand.appendFlags(extra_configure_args, [
>> > -        ('-DCMAKE_CXX_FLAGS=',           ['-flto']),
>> > -        ('-DCMAKE_EXE_LINKER_FLAGS=',    ['-flto', '-fuse-ld=lld']),
>> > -        ('-DCMAKE_MODULE_LINKER_FLAGS=', ['-flto', '-fuse-ld=lld']),
>> > -        ('-DCMAKE_SHARED_LINKER_FLAGS=', ['-flto', '-fuse-ld=lld']),
>> > +        ('-DCMAKE_CXX_FLAGS=',           [lto]),
>> > +        ('-DCMAKE_EXE_LINKER_FLAGS=',    [lto, '-fuse-ld=lld']),
>> > +        ('-DCMAKE_MODULE_LINKER_FLAGS=', [lto, '-fuse-ld=lld']),
>> > +        ('-DCMAKE_SHARED_LINKER_FLAGS=', [lto, '-fuse-ld=lld']),
>> >          ])
>> >
>> >      # The rest are test stages, which depend on the staged compiler we
>> are ultimately after.
>> >
>> >
>> > _______________________________________________
>> > llvm-commits mailing list
>> > llvm-commits at lists.llvm.org
>> > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>>
>> --
>> Davide
>>
>> "There are no solved problems; there are only problems that are more
>> or less solved" -- Henri Poincare
>>
>>
>> _______________________________________________
>> llvm-commits mailing list
>> llvm-commits at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>>
>
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