From mboxrd@z Thu Jan  1 00:00:00 1970
From: kenner@vlsi1.ultra.nyu.edu (Richard Kenner)
To: neil@daikokuya.demon.co.uk
Cc: gcc@gcc.gnu.org
Subject: Re: ICE in change_address at emit_rtl.c
Date: Sun, 25 Nov 2001 05:25:00 -0000
Message-ID: <10111251320.AA27664@vlsi1.ultra.nyu.edu>
X-SW-Source: 2001-11/msg01196.html
Message-ID: <20011125052500.qEwmM42lXiWZLVHI_dZ-V8ZkBZR5BRoBHndx4W7r4Rk@z>

    > Right, but note I said *performance*.  Even if we do that, we'd lose
    > optimization potential in knowing the form of the values.

    Why?  Can you give a simple example?

No.  I said *complex* objects.

Basically if you can look inside a SAVE_EXPR you may be able to deduce that
the value is always a multiple of some power-of-two.  Or you may be
able to simplify the expression by merging some divides and multiplies.
It's this sort of thing I'm talking about.