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From: prem paulson <prempaulson@gmail.com>
To: gcc-help@gcc.gnu.org
Subject: Function reorder with -fprofile-reorder-functions
Date: Tue, 25 Jan 2022 16:48:39 -0800	[thread overview]
Message-ID: <CALr15XJehwcotYDT+x7hudox3pKD43zjUykxiuY2jHpEC-wXXQ@mail.gmail.com> (raw)

Hello,

I am experimenting with function reordering using PGO. I am looking at
ordering functions based on the Last time of execution. For example, if the
sequence of calls from profile feedback is:

func1() -> func2() -> func3() -> func1()->func4()

I would like the reordering in the binary as follows:

func2
func3
func1
func4

The closest option I see is -fprofile-reorder-functions but it reorders
based on the first time of execution.

-fprofile-reorder-functions
Function reordering based on profile instrumentation collects first time of
execution of a function and orders these functions in ascending order.

Is there any similar option that can help me achieve this?

Thanks in advance.

             reply	other threads:[~2022-01-26  0:48 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-26  0:48 prem paulson [this message]
2022-02-01  5:59 ` prem paulson

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