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Re: Add macros for diagnostic control, use them in locale/weightwc.h

From: Paul Eggert <eggert at cs dot ucla dot edu>
To: Joseph Myers <joseph at codesourcery dot com>
Cc: Roland McGrath <roland at hack dot frob dot com>, libc-alpha at sourceware dot org
Date: Tue, 18 Nov 2014 22:52:21 -0800
Subject: Re: Add macros for diagnostic control, use them in locale/weightwc.h
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References: <alpine dot DEB dot 2 dot 10 dot 1411181803130 dot 11642 at digraph dot polyomino dot org dot uk> <546BB1B1 dot 50000 at cs dot ucla dot edu> <20141118211808 dot 2053D2C3B22 at topped-with-meat dot com> <546BC831 dot 2010006 at cs dot ucla dot edu> <alpine dot DEB dot 2 dot 10 dot 1411182301110 dot 18922 at digraph dot polyomino dot org dot uk> <546BDD19 dot 6000908 at cs dot ucla dot edu> <alpine dot DEB dot 2 dot 10 dot 1411190004060 dot 18922 at digraph dot polyomino dot org dot uk>

Joseph Myers wrote:

This is the one such optimization-related warning I see on x86_64

Wow. You're lucky. I've run into quite a few such warnings with coreutils,Emacs, etc. Perhaps it's because they enable more GCC warnings.

If this is the only warning we run into with glibc, then it doesn't matter muchhow it's addressed. If we start running into this more, though, I expect thedraft approach won't scale well.

References:
- Add macros for diagnostic control, use them in locale/weightwc.h
  - From: Joseph Myers
- Re: Add macros for diagnostic control, use them in locale/weightwc.h
  - From: Paul Eggert
- Re: Add macros for diagnostic control, use them in locale/weightwc.h
  - From: Roland McGrath
- Re: Add macros for diagnostic control, use them in locale/weightwc.h
  - From: Paul Eggert
- Re: Add macros for diagnostic control, use them in locale/weightwc.h
  - From: Joseph Myers
- Re: Add macros for diagnostic control, use them in locale/weightwc.h
  - From: Paul Eggert
- Re: Add macros for diagnostic control, use them in locale/weightwc.h
  - From: Joseph Myers

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