* "register" specifiers of any value?
@ 2001-10-08 19:57 Stan Shebs
2001-10-08 21:08 ` Richard Henderson
2001-10-09 13:18 ` Mark Mitchell
0 siblings, 2 replies; 4+ messages in thread
From: Stan Shebs @ 2001-10-08 19:57 UTC (permalink / raw)
To: gcc
While studying dwarf2out.c, I note that many locals are specified
as "register", most likely a pointless thing these days. At best
they might speed up a GCC built with somebody else's compiler, but
that doesn't seem very valuable, and we could get rid of some
clutter by whacking them. Looks like there are several thousand,
mostly concentrated in older files - can anybody come up with a
reason for keeping them?
Stan
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: "register" specifiers of any value?
2001-10-08 19:57 "register" specifiers of any value? Stan Shebs
@ 2001-10-08 21:08 ` Richard Henderson
2001-10-09 13:18 ` Mark Mitchell
1 sibling, 0 replies; 4+ messages in thread
From: Richard Henderson @ 2001-10-08 21:08 UTC (permalink / raw)
To: Stan Shebs; +Cc: gcc
On Mon, Oct 08, 2001 at 07:55:01PM -0700, Stan Shebs wrote:
> Looks like there are several thousand, mostly concentrated in
> older files - can anybody come up with a reason for keeping them?
I've been whacking them irregularly as I modify
code in their vicinity.
r~
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: "register" specifiers of any value?
2001-10-08 19:57 "register" specifiers of any value? Stan Shebs
2001-10-08 21:08 ` Richard Henderson
@ 2001-10-09 13:18 ` Mark Mitchell
1 sibling, 0 replies; 4+ messages in thread
From: Mark Mitchell @ 2001-10-09 13:18 UTC (permalink / raw)
To: Stan Shebs, gcc
--On Monday, October 08, 2001 07:55:01 PM -0700 Stan Shebs
<shebs@apple.com> wrote:
> While studying dwarf2out.c, I note that many locals are specified
> as "register", most likely a pointless thing these days. At best
> they might speed up a GCC built with somebody else's compiler, but
> that doesn't seem very valuable, and we could get rid of some
> clutter by whacking them. Looks like there are several thousand,
> mostly concentrated in older files - can anybody come up with a
> reason for keeping them?
No. Our policy is to never use `register' in new code, and there's
nothing wrong with removing it from old code. Patches to do that
are preapproved.
--
Mark Mitchell mark@codesourcery.com
CodeSourcery, LLC http://www.codesourcery.com
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: "register" specifiers of any value?
@ 2001-10-09 3:39 Richard Kenner
0 siblings, 0 replies; 4+ messages in thread
From: Richard Kenner @ 2001-10-09 3:39 UTC (permalink / raw)
To: rth; +Cc: gcc
I've been whacking them irregularly as I modify
code in their vicinity.
I've been doing likewise.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2001-10-09 13:18 UTC | newest]
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2001-10-08 19:57 "register" specifiers of any value? Stan Shebs
2001-10-08 21:08 ` Richard Henderson
2001-10-09 13:18 ` Mark Mitchell
2001-10-09 3:39 Richard Kenner
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