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Re: Adding custom scheduler dependency between 2 insns

From: Maxim Kuvyrkov <maxim at codesourcery dot com>
To: Tomer Benyamini <Tomer dot Benyamini at ceva-dsp dot com>
Cc: gcc at gcc dot gnu dot org
Date: Thu, 08 Nov 2007 10:29:48 +0300
Subject: Re: Adding custom scheduler dependency between 2 insns
References: <4731CD35.7050601@codesourcery.com> <853530F948FC344697BE780237FDC39101FE23B4@speedy.corp.local>

Tomer Benyamini wrote:

Hi,

I was wondering if it is possible to create a dependency between 2 insns
through a specific scheduler hook (maybe through
TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK) even though the insns are not
really dependent (not really read-after-write etc.). If it is possible,
what is the best way to do it?

It sounds to me like you want a dirty hack. Anyway, call to sched-deps.c: sd_add_dep () should be enough.

--
Maxim

Follow-Ups:
- RE: Adding custom scheduler dependency between 2 insns
  - From: Tomer Benyamini

References:
- Re: Dependency check between instructions?
  - From: Maxim Kuvyrkov
- Adding custom scheduler dependency between 2 insns
  - From: Tomer Benyamini

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