From: Joe Buck <Joe.Buck@synopsys.COM>
To: Mike Stump <mrs@apple.com>
Cc: Diego Novillo <dnovillo@redhat.com>, Syd Polk <spolk@apple.com>,
GCC List <gcc@gcc.gnu.org>
Subject: Re: Help restricting args of an intrinsic function
Date: Mon, 02 Feb 2004 23:26:00 -0000 [thread overview]
Message-ID: <20040202152606.B7898@synopsys.com> (raw)
In-Reply-To: <E1368D70-53A1-11D8-9B07-003065BDF310@apple.com>; from mrs@apple.com on Fri, Jan 30, 2004 at 07:59:34PM -0800
On Fri, Jan 30, 2004 at 07:59:34PM -0800, Mike Stump wrote:
> On Friday, January 30, 2004, at 05:38 PM, Diego Novillo wrote:
> > Yes, that's fine. Here's what tree-ssa emits after the tree
> > optimization passes for the test cases you mentioned.
>
> So, does your scheme work when the optimizer is off (-O0)?
>
> If not, why would that be a solution?
Who says that exactly one instruction must be emitted with the optimizer
off? It seems to me that it would suffice to have the builtin function
emit the one instruction in the case where the mask arguments, after any
optimization, are constant, and otherwise emit whatever code is needed to
compute the correct result (or simply emit a call to a library function).
next prev parent reply other threads:[~2004-02-02 23:26 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-31 0:53 Syd Polk
2004-01-31 0:54 ` Ian Lance Taylor
2004-01-31 1:21 ` Syd Polk
2004-01-31 1:38 ` Ian Lance Taylor
2004-01-31 1:52 ` David Edelsohn
2004-01-31 2:00 ` Syd Polk
2004-01-31 2:03 ` David Edelsohn
2004-01-31 2:20 ` Syd Polk
2004-01-31 3:18 ` Syd Polk
2004-01-31 0:55 ` Diego Novillo
2004-01-31 1:07 ` Syd Polk
2004-01-31 1:42 ` Diego Novillo
2004-01-31 4:29 ` Mike Stump
2004-01-31 7:34 ` Diego Novillo
2004-01-31 7:45 ` Mike Stump
2004-01-31 18:24 ` Diego Novillo
2004-02-02 19:58 ` Mike Stump
2004-02-02 23:44 ` Syd Polk
2004-02-02 23:56 ` Richard Henderson
2004-02-03 0:29 ` Syd Polk
2004-02-03 0:39 ` Richard Henderson
2004-02-02 23:26 ` Joe Buck [this message]
2004-02-02 23:37 ` Mike Stump
2004-02-02 23:45 ` Joe Buck
2004-02-03 0:31 ` Mike Stump
2004-02-03 0:35 ` Daniel Jacobowitz
2004-02-03 1:16 ` Mike Stump
2004-02-03 1:56 ` Gabriel Dos Reis
2004-01-31 0:58 ` Ziemowit Laski
2004-01-31 1:38 ` Syd Polk
2004-01-31 8:12 ` Joseph S. Myers
2004-02-03 14:18 Etienne Lorrain
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