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How to enable instruction scheduling?
- From: Balaji S <sivanbalaji at acmet dot com>
- To: gcc at gcc dot gnu dot org
- Date: Wed, 29 Dec 2004 12:20:32 +0530
- Subject: How to enable instruction scheduling?
- Organization: Acme Technologies Pvt. Ltd.
Hi all,
I am working on a 16bit DSP which can issue two instructions in one cycle.
To know more about DFA scheduling in GCC, I decided to take a simple RISC (stormy16) port and modify that to have the above feature.
I studied DFA scheduling description from the existing target ports and written the behavioral description (DFA) for my new target. With this DFA description alone i am not getting the scheduled output. I am not getting debug dumps using -dS and -dR too.
Seems more actions required to get VLIW like bundeled instructions?
Please, help in this.
Thanks in advance,
Balaji Sivan