llvm dev - Jan 2019 - Instruction scheduling in LLVM

Hi all,

Can anyone tell me the current state of instruction scheduling in LLVM,
i.e. what all internal scheduling algorithms and whether constraint solving
methods are used in LLVM for a single issue processor ? Please let me know
if anyone has any information about it.

Thanks,
Siddharth
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Hi Siddharh :


 You may find this tutorial on llvm machine scheduler useful
https://youtu.be/brpomKUynEA It gives an overview of scheduling algorithms used
by llvm. It also explains how you could override the default scheduling
algorithm in various stages.

best regards.

Javed


________________________________
From: cfe-dev <cfe-dev-bounces at lists.llvm.org> on behalf of Siddharth
Shankar Swain via cfe-dev <cfe-dev at lists.llvm.org>
Sent: 22 January 2019 10:54
To: llvm-dev; Clang Dev
Subject: [cfe-dev] Instruction scheduling in LLVM

Hi all,

Can anyone tell me the current state of instruction scheduling in LLVM, i.e.
what all internal scheduling algorithms and whether constraint solving methods
are used in LLVM for a single issue processor ? Please let me know if anyone has
any information about it.

Thanks,
Siddharth
IMPORTANT NOTICE: The contents of this email and any attachments are
confidential and may also be privileged. If you are not the intended recipient,
please notify the sender immediately and do not disclose the contents to any
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medium. Thank you.
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Hi Javed,

Thanks a lot for the info. It is really useful.

Thanks,
Siddharth

On Tue 22 Jan, 2019, 4:53 PM Javed Absar <Javed.Absar at arm.com wrote:
> Hi Siddharh :
>
>
>  You may find this tutorial on llvm machine scheduler useful
> https://youtu.be/brpomKUynEA It gives an overview of scheduling
> algorithms used by llvm. It also explains how you could override the
> default scheduling algorithm in various stages.
>
> best regards.
>
> Javed
>
>
> ------------------------------
> *From:* cfe-dev <cfe-dev-bounces at lists.llvm.org> on behalf of
Siddharth
> Shankar Swain via cfe-dev <cfe-dev at lists.llvm.org>
> *Sent:* 22 January 2019 10:54
> *To:* llvm-dev; Clang Dev
> *Subject:* [cfe-dev] Instruction scheduling in LLVM
>
> Hi all,
>
> Can anyone tell me the current state of instruction scheduling in LLVM,
> i.e. what all internal scheduling algorithms and whether constraint solving
> methods are used in LLVM for a single issue processor ? Please let me know
> if anyone has any information about it.
>
> Thanks,
> Siddharth
> IMPORTANT NOTICE: The contents of this email and any attachments are
> confidential and may also be privileged. If you are not the intended
> recipient, please notify the sender immediately and do not disclose the
> contents to any other person, use it for any purpose, or store or copy the
> information in any medium. Thank you.
>
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