Use temporary files in lto

[Sean Silva via llvm-commits]

On Thu, Apr 28, 2016 at 5:08 PM, Rui Ueyama via llvm-commits <
llvm-commits at lists.llvm.org> wrote:

> It is actually harder than I thought as I have never built ELF executables
> with LTO on Windows. Did anyone do that before?
>

The primary shipping configuration for PS4 is building ELF executables on
Windows :)

-- Sean Silva


>
> On Thu, Apr 28, 2016 at 4:49 PM, Rafael Espíndola <
> rafael.espindola at gmail.com> wrote:
>
>> Thanks!
>>
>> On 28 April 2016 at 19:35, Rui Ueyama <ruiu at google.com> wrote:
>> > I can run this on Windows for you.
>> >
>> > On Thu, Apr 28, 2016 at 4:23 PM, Rafael Espíndola
>> > <llvm-commits at lists.llvm.org> wrote:
>> >>
>> >> This is the idea we chatted today to try to avoid mallocs os windows.
>> >> I was surprised to find this a small speedup up on linux (with /tmp in
>> >> tmpfs), so I wonder if we are doing something funny in SmallVector.
>> >>
>> >> Linking llvm-as I got
>> >>
>> >> master: 29.774786873 seconds
>> >> patch 29.752283093 seconds
>> >>
>> >> Could one of you benchmark this on windows? If it is a performance win
>> >> there too I will clean the patch up and send for proper review.
>> >>
>> >> Cheers,
>> >> Rafael
>> >>
>> >> _______________________________________________
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>> >> llvm-commits at lists.llvm.org
>> >> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>> >>
>> >
>>
>
>
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