Martin J. O'Riordan via llvm-dev
2017-Apr-14 12:08 UTC
[llvm-dev] Options for timing passes in LLVM?
Thanks :)
From: 陳韋任 [mailto:chenwj.cs97g at g2.nctu.edu.tw]
Sent: 14 April 2017 12:53
To: Martin J. O'Riordan <martin.oriordan at movidius.com>
Cc: LLVM Developers <llvm-dev at lists.llvm.org>
Subject: Re: [llvm-dev] Options for timing passes in LLVM?
Refer to `llc` document [1], it would be `--time-passes`.
[1] http://llvm.org/docs/CommandGuide/llc.html
HTH,
chenwj
2017-04-14 19:39 GMT+08:00 Martin J. O'Riordan via llvm-dev <llvm-dev at
lists.llvm.org <mailto:llvm-dev at lists.llvm.org> >:
Hi LLVM-Dev,
Are there any options that can be used to report the time each LLVM pass takes
to execute? I am examining a program that now takes about 6 times longer to
compiler since we moved to the v4.0 sources from the v3.9 sources (~54s to
~320s), and so far my investigation does not seem to point to our additional
target specific passes, so I would like to see where the time is being spent.
If there are existing options already present for this kind of thing, that would
be very helpful.
Thanks,
MartinO
_______________________________________________
LLVM Developers mailing list
llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>
http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
--
--
Wei-Ren Chen (陳韋任)
Homepage: https://people.cs.nctu.edu.tw/~chenwj
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Craig Topper via llvm-dev
2017-Apr-14 14:45 UTC
[llvm-dev] Options for timing passes in LLVM?
For clang you want -ftime-report On Fri, Apr 14, 2017 at 5:08 AM Martin J. O'Riordan via llvm-dev < llvm-dev at lists.llvm.org> wrote:> Thanks J > > > > *From:* 陳韋任 [mailto:chenwj.cs97g at g2.nctu.edu.tw] > *Sent:* 14 April 2017 12:53 > *To:* Martin J. O'Riordan <martin.oriordan at movidius.com> > *Cc:* LLVM Developers <llvm-dev at lists.llvm.org> > *Subject:* Re: [llvm-dev] Options for timing passes in LLVM? > > > > Refer to `llc` document [1], it would be `--time-passes`. > > > > [1] http://llvm.org/docs/CommandGuide/llc.html > > > > HTH, > > chenwj > > > > > > 2017-04-14 19:39 GMT+08:00 Martin J. O'Riordan via llvm-dev < > llvm-dev at lists.llvm.org>: > > Hi LLVM-Dev, > > > > Are there any options that can be used to report the time each LLVM pass > takes to execute? I am examining a program that now takes about 6 times > longer to compiler since we moved to the v4.0 sources from the v3.9 sources > (~54s to ~320s), and so far my investigation does not seem to point to our > additional target specific passes, so I would like to see where the time is > being spent. If there are existing options already present for this kind > of thing, that would be very helpful. > > > > Thanks, > > > > MartinO > > > > > _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev > > > > > > -- > > > -- > Wei-Ren Chen (陳韋任) > Homepage: https://people.cs.nctu.edu.tw/~chenwj > _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev >-- ~Craig -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20170414/c2d413dd/attachment.html>
Martin J. O'Riordan via llvm-dev
2017-Apr-14 15:28 UTC
[llvm-dev] Options for timing passes in LLVM?
That worked perfectly thanks.
MartinO
From: Craig Topper [mailto:craig.topper at gmail.com]
Sent: 14 April 2017 15:46
To: Martin J. O'Riordan <martin.oriordan at movidius.com>; 陳韋任
<chenwj.cs97g at g2.nctu.edu.tw>
Cc: LLVM Developers <llvm-dev at lists.llvm.org>
Subject: Re: [llvm-dev] Options for timing passes in LLVM?
For clang you want -ftime-report
On Fri, Apr 14, 2017 at 5:08 AM Martin J. O'Riordan via llvm-dev
<llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org> >
wrote:
Thanks :)
From: 陳韋任 [mailto:chenwj.cs97g at g2.nctu.edu.tw <mailto:chenwj.cs97g at
g2.nctu.edu.tw> ]
Sent: 14 April 2017 12:53
To: Martin J. O'Riordan <martin.oriordan at movidius.com
<mailto:martin.oriordan at movidius.com> >
Cc: LLVM Developers <llvm-dev at lists.llvm.org <mailto:llvm-dev at
lists.llvm.org> >
Subject: Re: [llvm-dev] Options for timing passes in LLVM?
Refer to `llc` document [1], it would be `--time-passes`.
[1] http://llvm.org/docs/CommandGuide/llc.html
HTH,
chenwj
2017-04-14 19:39 GMT+08:00 Martin J. O'Riordan via llvm-dev <llvm-dev at
lists.llvm.org <mailto:llvm-dev at lists.llvm.org> >:
Hi LLVM-Dev,
Are there any options that can be used to report the time each LLVM pass takes
to execute? I am examining a program that now takes about 6 times longer to
compiler since we moved to the v4.0 sources from the v3.9 sources (~54s to
~320s), and so far my investigation does not seem to point to our additional
target specific passes, so I would like to see where the time is being spent.
If there are existing options already present for this kind of thing, that would
be very helpful.
Thanks,
MartinO
_______________________________________________
LLVM Developers mailing list
llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>
http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
--
--
Wei-Ren Chen (陳韋任)
Homepage: https://people.cs.nctu.edu.tw/~chenwj
_______________________________________________
LLVM Developers mailing list
llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>
http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
--
~Craig
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