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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, 25 Nov 2014 16:42:26 -0800
Subject: Re: Add macros for diagnostic control, use them in locale/weightwc.h
Authentication-results: sourceware.org; auth=none
References: <alpine dot DEB dot 2 dot 10 dot 1411181803130 dot 11642 at digraph dot polyomino dot org dot uk> <alpine dot DEB dot 2 dot 10 dot 1411211705270 dot 2475 at digraph dot polyomino dot org dot uk> <546F79BB dot 80604 at cs dot ucla dot edu> <alpine dot DEB dot 2 dot 10 dot 1411211807540 dot 2475 at digraph dot polyomino dot org dot uk> <546F8FA5 dot 2050702 at cs dot ucla dot edu> <alpine dot DEB dot 2 dot 10 dot 1411212240570 dot 32250 at digraph dot polyomino dot org dot uk> <54701BAA dot 1030805 at cs dot ucla dot edu> <20141124234701 dot 5BB082C3B22 at topped-with-meat dot com> <alpine dot DEB dot 2 dot 10 dot 1411250106450 dot 11608 at digraph dot polyomino dot org dot uk> <54750446 dot 4050908 at cs dot ucla dot edu> <alpine dot DEB dot 2 dot 10 dot 1411252238500 dot 17237 at digraph dot polyomino dot org dot uk> <54751D98 dot 1040307 at cs dot ucla dot edu> <alpine dot DEB dot 2 dot 10 dot 1411260034280 dot 17237 at digraph dot polyomino dot org dot uk>

Joseph Myers wrote:

On Tue, 25 Nov 2014, Paul Eggert wrote:

>Joseph Myers wrote:

> >It's only in a particular bit of code where we want to assume it's
> >initialized.

>
>We could use ASSUME_INITIALIZED only in the particular bit of code where it's
>needed, as it doesn't have to be used immediately after a declaration.

But won't the proposed asm, with its output operand for resplen, imply
that any previous value in resplen is dead

Ah, true. Still, if we use it just after resplen's declaration, we've localizedthe assumption well -- better than we would have done with the pragmas, andthat's good enough.

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: 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
- 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: Roland McGrath
- 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
- 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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