[zorg] r297359 - Do not use parallel link jobs with ThinLTO on Green Dragon

[David Blaikie via llvm-commits]

It'd be helpful to include the motivation in the commit message so that
there's some context for others (now and in the future/when doing
archaeology).

On Wed, Mar 8, 2017 at 9:15 PM Mehdi Amini via llvm-commits <
llvm-commits at lists.llvm.org> wrote:

> Author: mehdi_amini
> Date: Wed Mar  8 23:03:53 2017
> New Revision: 297359
>
> URL: http://llvm.org/viewvc/llvm-project?rev=297359&view=rev
> Log:
> Do not use parallel link jobs with ThinLTO on Green Dragon
>
> Modified:
>     zorg/trunk/zorg/jenkins/build.py
>
> Modified: zorg/trunk/zorg/jenkins/build.py
> URL:
> http://llvm.org/viewvc/llvm-project/zorg/trunk/zorg/jenkins/build.py?rev=297359&r1=297358&r2=297359&view=diff
>
> ==============================================================================
> --- zorg/trunk/zorg/jenkins/build.py (original)
> +++ zorg/trunk/zorg/jenkins/build.py Wed Mar  8 23:03:53 2017
> @@ -187,7 +187,10 @@ def cmake_builder(target):
>      max_parallel_links = conf.max_parallel_links
>
>      if conf.lto:
> -        cmake_cmd += ["-DLLVM_PARALLEL_LINK_JOBS=" + str(max_link_jobs())]
> +        if conf.thinlto:
> +            cmake_cmd += ["-DLLVM_PARALLEL_LINK_JOBS=1"]
> +        else:
> +            cmake_cmd += ["-DLLVM_PARALLEL_LINK_JOBS=" +
> str(max_link_jobs())]
>          cmake_cmd += ['-DLLVM_BUILD_EXAMPLES=Off']
>          if not max_parallel_links:
>              max_parallel_links = 1
> @@ -374,7 +377,9 @@ def clang_builder(target):
>              cmake_command.extend(
>                  ['-DLLVM_LIT_ARGS={}'.format(' '.join(lit_flags))])
>
> -            if conf.lto:
> +            if conf.thinlto:
> +                cmake_command.extend(["-DLLVM_PARALLEL_LINK_JOBS=1"])
> +            elif conf.lto:
>                  cmake_command.extend(
>                      ["-DLLVM_PARALLEL_LINK_JOBS=" + str(max_link_jobs())])
>              else:
>
>
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