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Re: Fix BIV detection with promoted loop indexes

From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
To: rth at redhat dot com
Cc: gcc-patches at gcc dot gnu dot org
Date: Fri, 22 Feb 02 22:11:18 EST
Subject: Re: Fix BIV detection with promoted loop indexes

    Looking forward, this general pattern happens a lot.  It looks 
    like your change breaks "unsigned int" arithmetic quite badly.

I don't understand why, but I agree this isn't the time to figure it out.

    Perhaps we should have added add[qh]i3 patterns similar to addsi3?

Interesting idea.  Let me experiment tomorrow.

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