llvm dev - Jul 2019 - Help on Optimization Remarks

Dear llvm-dev community,
   I am trying to analyze the optimization remarks generated through clang
using -fsave-optimization-remark with -O3.

--- !Analysis
Pass: loop-vectorize
Name: CFGNotUnderstood
DebugLoc: { File: c-ray-mt.c, Line: 177, Column: 2 }
Function: main
Args:
- String: 'loop not vectorized: '
- String: loop control flow is not understood by vectorizer


I tried to look for information about "loop vectorize pass" and other
emitted pass in the official llvm passes documentaiton here
<https://llvm.org/docs/Passes.html> but it is not there. Please let me
know
where to find information about passes emitted in the optimization report.

Regards,
Pradeep
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> On Jul 29, 2019, at 2:40 PM, Pradeep Kumar via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
> 
> Dear Vivek,
>     Sorry, I couldn't reply to the same thread. I want to know which
existing passes emit optimization remarks. Here passes refer to the Analysis and
Transformation passes listed in llvm.org/docs/Passes.html. Also where can I find
more information on the internals of optimization remarks infrastructure?
Unfortunately, we don’t have documentation on which passes emit remarks. I
recently added some documentation on remarks here:
https://llvm.org/docs/Remarks.html.

If you check out llvm/docs/Remarks.rst there are a few things missing that I
mention at the end of the file.
> 
> Regards,
> Pradeep
> 
> On Fri, Jul 26, 2019 at 10:06 PM Pradeep Kumar <pradeepisro49 at
gmail.com> wrote:
> Dear llvm-dev community,
>    I am trying to analyze the optimization remarks generated through clang
using -fsave-optimization-remark with -O3.
> 
> --- !Analysis
> Pass:            loop-vectorize
> Name:            CFGNotUnderstood
> DebugLoc:        { File: c-ray-mt.c, Line: 177, Column: 2 }
> Function:        main
> Args:            
>   - String:          'loop not vectorized: '
>   - String:          loop control flow is not understood by vectorizer
> 
> 
> I tried to look for information about "loop vectorize pass" and
other emitted pass in the official llvm passes documentaiton here but it is not
there. Please let me know where to find information about passes emitted in the
optimization report.
> 
> Regards,
> Pradeep
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev

Dear Vivek,
    Sorry, I couldn't reply to the same thread. I want to know which
existing passes emit optimization remarks. Here passes refer to the
Analysis and Transformation passes listed in llvm.org/docs/Passes.html.
Also where can I find  more information on the internals of optimization
remarks infrastructure?

Regards,
Pradeep

On Fri, Jul 26, 2019 at 10:06 PM Pradeep Kumar <pradeepisro49 at
gmail.com>
wrote:
> Dear llvm-dev community,
>    I am trying to analyze the optimization remarks generated through clang
> using -fsave-optimization-remark with -O3.
>
> --- !Analysis
> Pass: loop-vectorize
> Name: CFGNotUnderstood
> DebugLoc: { File: c-ray-mt.c, Line: 177, Column: 2 }
> Function: main
> Args:
> - String: 'loop not vectorized: '
> - String: loop control flow is not understood by vectorizer
>
>
> I tried to look for information about "loop vectorize pass" and
other
> emitted pass in the official llvm passes documentaiton here
> <https://llvm.org/docs/Passes.html> but it is not there. Please let
me
> know where to find information about passes emitted in the optimization
> report.
>
> Regards,
> Pradeep
>
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