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Re: Incorrect bitfield aliasing with Tree SSA

From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
To: dberlin at dberlin dot org
Cc: anemet at caviumnetworks dot com, ebotcazou at libertysurf dot fr, gcc at gcc dot gnu dot org
Date: Mon, 18 Jun 2007 10:58:50 EDT
Subject: Re: Incorrect bitfield aliasing with Tree SSA
References: <18034.48960.772642.116034@localhost.localdomain> <200706180839.21793.ebotcazou@libertysurf.fr> <4aca3dc20706180437t362e81e4ofde9d4c58bc77ab2@mail.gmail.com> <200706181435.31764.ebotcazou@libertysurf.fr> <4aca3dc20706180716i34fb334k99eaa5623ec1b1e@mail.gmail.com> <10706181434.AA13943@vlsi1.ultra.nyu.edu> <4aca3dc20706180749j20003942h240903b10cbe4817@mail.gmail.com>

> His first patch, which simply makes #1 true, would cause missed optimization.

It doesn't "cause missed optimizations": it completely removes all the
functionality of DECL_NONADDRESSABLE_P!

Follow-Ups:
- Re: Incorrect bitfield aliasing with Tree SSA
  - From: Daniel Berlin

References:
- Incorrect bitfield aliasing with Tree SSA
  - From: Adam Nemet
- Re: Incorrect bitfield aliasing with Tree SSA
  - From: Eric Botcazou
- Re: Incorrect bitfield aliasing with Tree SSA
  - From: Daniel Berlin
- Re: Incorrect bitfield aliasing with Tree SSA
  - From: Eric Botcazou
- Re: Incorrect bitfield aliasing with Tree SSA
  - From: Daniel Berlin
- Re: Incorrect bitfield aliasing with Tree SSA
  - From: Richard Kenner
- Re: Incorrect bitfield aliasing with Tree SSA
  - From: Daniel Berlin

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