From: Torbjorn Granlund <tege@nada.kth.se>
To: John Carr <jfc@mit.edu>
Cc: Jason Merrill <jason@cygnus.com>,
bothner@cygnus.com (Per Bothner),
egcs@cygnus.com
Subject: Re: bool
Date: Wed, 12 Nov 1997 06:25:00 -0000 [thread overview]
Message-ID: <199711121425.PAA09493@squid.pdc.kth.se> (raw)
In-Reply-To: <199711121359.IAA19680@contents-vnder-pressvre.MIT.EDU>
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Having bool a 8-bit quantity does not need to be slower than having it be
the `fastest type', if the tm macro PROMOTE_MODE is set up properly.
PROMOTE_MODE has the effect of widening a type when a quantity of that type
is in a register,
Machines without byte loads/stores would still be hurt, but such machines
are rare. Even Alpha now has byte loads, although the 21064 and early 21164
did not have them.
Torbjörn
next prev parent reply other threads:[~1997-11-12 6:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-11-11 8:27 bool Andrew Borthwick
1997-11-11 10:52 ` bool Per Bothner
[not found] ` <199711111843.KAA03525.cygnus.egcs@cygnus.com>
1997-11-11 12:13 ` bool Jason Merrill
1997-11-11 12:28 ` bool Per Bothner
1997-11-11 18:24 ` bool Alexandre Oliva
[not found] ` <199711112028.MAA08953.cygnus.egcs@cygnus.com>
1997-11-11 18:44 ` bool Jason Merrill
1997-11-12 5:59 ` bool John Carr
1997-11-12 6:25 ` Torbjorn Granlund [this message]
1997-11-11 15:29 Andrew Borthwick
1997-11-12 2:47 ` bool Branko Cibej
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