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Re: Optimizations done by -fprofile-use

From: Ian Lance Taylor <iant at google dot com>
To: Asif Musthafa <asifmusthafa at gmail dot com>
Cc: naga raj <gnuuser dot raj at gmail dot com>, gcc-help at gcc dot gnu dot org
Date: Tue, 19 Jul 2011 06:25:01 -0700
Subject: Re: Optimizations done by -fprofile-use
References: <CALiWYtGFixNJLhj=gaJmRXw_qtQMH0xpsYojoPmWMtTzvxgi-Q@mail.gmail.com> <CALiWYtGdejdCAR3XiHSBTXHTfC7-2D-Gtqi3J9isQ+Vu0k+p+A@mail.gmail.com> <CAKuVEhD+7zTivDY7JQXuyO2QdpTbKB_rxDwAAOnfwmuhTYH2-Q@mail.gmail.com> <CALiWYtFTxj4EtucmjX02ibL6qxsz42O=DikJ0O2fuPEBNNEJew@mail.gmail.com>

Asif Musthafa <asifmusthafa@gmail.com> writes:

> I am not looking for the gcc options getting enabled by the flag. But,
> the actual tweaking happened on my app. Something like which all
> branches got rearranged etc. Is it possible to get that level of
> information?

Not in a useful form.

You can use -fdump-tree-all -fdump-rtl-all and look at the generated
dump files for the branch probabilities.

Ian

Follow-Ups:
- Re: Optimizations done by -fprofile-use
  - From: Asif Musthafa

References:
- Re: Optimizations done by -fprofile-use
  - From: Asif Musthafa
- Re: Optimizations done by -fprofile-use
  - From: naga raj
- Re: Optimizations done by -fprofile-use
  - From: Asif Musthafa

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