[Sdcc-user] FW: kludgy fixes in CSE.

[Jatin B. <jat...@co...>]

Hi,

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It has been some time since I posted this mail but dint get any reply.I
have also logged a bug in the bug list for this [Bug# 1527564].

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Need your help on this

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Regards,

Jatin

________________________________

From: sdc...@li...
[mailto:sdc...@li...] On Behalf Of Jatin
Bhateja
Sent: Friday, July 21, 2006 11:55 AM
To: sdc...@li...
Subject: [Sdcc-user] kludgy fixes in CSE.

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Hi,

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I am working on SDCC for quite some time now. I have noticed that many a
times iCode generation phase=20

Produces incorrect iCode but in the CSE pass (for eg. In
algebraicOpts())  Sandeep Dutta have put some kludgy fixes which convert
that

Incorrect iCode to correct one.

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I wanted to know was there any specific reason for this behavior. Why
don't we generate the correct iCode in the ast2iCode pass itself.

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I am asking this because there is a SERIOUS DRAWBACK of this approach
that one cannot disable the optimization pass (CSE) as

In such case incorrect assembly will be produced. If I use -nogcse
option then compiler will generate incorrect code.

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Please let me know the reason for it as I want to disable the
optimization passes.

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Regards,

Jatin Bhateja

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