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Re: muldi3, divdi3 and remdi3 patterns
- To: Mark Klein <mklein@dis.com>
- Subject: Re: muldi3, divdi3 and remdi3 patterns
- From: Jeffrey A Law <law@cygnus.com>
- Date: Tue, 10 Aug 1999 23:05:37 -0600
- cc: gcc@gcc.gnu.org
- Reply-To: law@cygnus.com
In message <4.1.19990810085233.00c17300@garfield.dis.com>you write:
> PA 1.0 is the primary reason - many of the HP3000's are still PA 1.0
> boxes without xmpyu. Regardless, it's the $$rem.. millicode that I'm
> trying to add.
Then you would want to tune the costs of the multiply, divide & remainders.
What's out there is already aware of PA1.0 vs PA1.1 processors, but may not
be aware of the relative cost of operations for DImode operations.
jeff