llvm dev - Sep 2017 - '-fsave-optimization-record' and VS2015 built compiler

Not 100% if this is an LLVM question or a CLang question, though I expect LLVM.

On Linux, if I pass '-fsave-optimization-record' to 'clang',
then it produces a '*.opt.yaml' file.  However, the same thing run on
Windows using 'clang' built with VS2015 silently ignores this option.

Is this a bug or is it intentional?  And if it is intentional, how can I
configure and build on Windows to enable this feature?

Thanks,

            MartinO

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On 09/07/2017 09:10 AM, ORiordan, Martin via llvm-dev
wrote:
>
> Not 100% if this is an LLVM question or a CLang question, though I 
> expect LLVM.
>
> On Linux, if I pass ‘-fsave-optimization-record’ to ‘clang’, then it 
> produces a ‘*.opt.yaml’ file.  However, the same thing run on Windows 
> using ‘clang’ built with VS2015 silently ignores this option.
>
> Is this a bug or is it intentional? And if it is intentional, how can 
> I configure and build on Windows to enable this feature?
>
Sounds like a bug (I've never tested on Windows). I suggest filing a bug 
report. Also, in general, you'll have better luck with frontend 
questions on cfe-dev.

  -Hal
> Thanks,
>
>             MartinO
>
> --------------------------------------------------------------
> Intel Research and Development Ireland Limited
> Registered in Ireland
> Registered Office: Collinstown Industrial Park, Leixlip, County Kildare
> Registered Number: 308263
>
> This e-mail and any attachments may contain confidential material for 
> the sole use of the intended recipient(s). Any review or distribution 
> by others is strictly prohibited. If you are not the intended 
> recipient, please contact the sender and delete all copies.
>
>
>
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-- 
Hal Finkel
Lead, Compiler Technology and Programming Languages
Leadership Computing Facility
Argonne National Laboratory

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That's pretty odd.  Can you rule out for sure that the files aren't
being
written somewhere unexpected or that the other clang was built against
different sources?

On Thu, Sep 7, 2017 at 9:10 AM, ORiordan, Martin via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Not 100% if this is an LLVM question or a CLang question, though I expect
> LLVM.
>
>
>
> On Linux, if I pass ‘-fsave-optimization-record’ to ‘clang’, then it
> produces a ‘*.opt.yaml’ file.  However, the same thing run on Windows
> using ‘clang’ built with VS2015 silently ignores this option.
>
>
>
> Is this a bug or is it intentional?  And if it is intentional, how can I
> configure and build on Windows to enable this feature?
>
>
>
> Thanks,
>
>
>
>             MartinO
>
>
>
> --------------------------------------------------------------
> Intel Research and Development Ireland Limited
> Registered in Ireland
> Registered Office: Collinstown Industrial Park, Leixlip, County Kildare
> Registered Number: 308263
>
> This e-mail and any attachments may contain confidential material for the
> sole use of the intended recipient(s). Any review or distribution by others
> is strictly prohibited. If you are not the intended recipient, please
> contact the sender and delete all copies.
>
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
>

-- 
-Brian
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Thanks Hal,

Though the option is handled in the driver, I was not sure if this was an LLVM
implemented feature or a CLang implemented feature, and I know the list does not
like cross-posting a message ;-)

And thanks too Brian:

From: Brian Cain [mailto:brian.cain at gmail.com]

That's pretty odd.  Can you rule out for sure that the files aren't
being written somewhere unexpected or that the other clang was built against
different sources?

Yes you’re right, it appears to be in ‘c:\tmp\foo-XXXXXX.opt.yaml’, though on
Linux it is located in ‘./foo.opt.yaml’.  The sources for my Linux and VS2015
builds are identical.

So it would appear that the temporary files is being created but not finalised –
probably a CLang driver issue.  I’ll dig deeper and see where this is going
wrong and I’ll re-post this to CFE-Dev.

Thanks again to both of you,

            MartinO

From: Hal Finkel [mailto:hfinkel at anl.gov]
Sent: Thursday, September 7, 2017 3:37 PM
To: ORiordan, Martin <martin.oriordan at intel.com>; llvm-dev <llvm-dev
at lists.llvm.org>
Subject: Re: [llvm-dev] '-fsave-optimization-record' and VS2015 built
compiler



On 09/07/2017 09:10 AM, ORiordan, Martin via llvm-dev wrote:
Not 100% if this is an LLVM question or a CLang question, though I expect LLVM.

On Linux, if I pass ‘-fsave-optimization-record’ to ‘clang’, then it produces a
‘*.opt.yaml’ file.  However, the same thing run on Windows using ‘clang’ built
with VS2015 silently ignores this option.

Is this a bug or is it intentional?  And if it is intentional, how can I
configure and build on Windows to enable this feature?

Sounds like a bug (I've never tested on Windows). I suggest filing a bug
report. Also, in general, you'll have better luck with frontend questions on
cfe-dev.

 -Hal



Thanks,

            MartinO


--------------------------------------------------------------
Intel Research and Development Ireland Limited
Registered in Ireland
Registered Office: Collinstown Industrial Park, Leixlip, County Kildare
Registered Number: 308263

This e-mail and any attachments may contain confidential material for the sole
use of the intended recipient(s). Any review or distribution by others is
strictly prohibited. If you are not the intended recipient, please contact the
sender and delete all copies.




_______________________________________________

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--

Hal Finkel

Lead, Compiler Technology and Programming Languages

Leadership Computing Facility

Argonne National Laboratory
--------------------------------------------------------------
Intel Research and Development Ireland Limited
Registered in Ireland
Registered Office: Collinstown Industrial Park, Leixlip, County Kildare
Registered Number: 308263


This e-mail and any attachments may contain confidential material for the sole
use of the intended recipient(s). Any review or distribution by others is
strictly prohibited. If you are not the intended recipient, please contact the
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