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Re: PATCH for branch-shortening on MIPS

To: mark at codesourcery dot com
Subject: Re: PATCH for branch-shortening on MIPS
From: Richard Henderson <rth at cygnus dot com>
Date: Sun, 6 Jun 1999 11:37:38 -0700
Cc: wilson at cygnus dot com, egcs-patches at egcs dot cygnus dot com
References: <19990527115110C.mitchell@codesourcery.com> <199906040549.WAA08101@rtl.cygnus.com> <19990603232813I.mitchell@codesourcery.com>

On Thu, Jun 03, 1999 at 11:28:13PM -0700, mark@codesourcery.com wrote:
> I don't see that either.  Before, these ports would emit illegal
> assembly (in the form of out-of-range branches).  Now, they will emit
> illegal assembly (in the form of IRIX6-specific assembly).  Not really
> any worse.

Actually, it is, due to more macro hell.  The MIPS assembler
would transform an out of range conditional branch into a
complimented conditional branch around a jump through AT.

Not that I think that relying on such a thing is good...

r~

Follow-Ups:
- Re: PATCH for branch-shortening on MIPS
  - From: mark

References:
- Re: PATCH for branch-shortening on MIPS
  - From: Jim Wilson
- Re: PATCH for branch-shortening on MIPS
  - From: mark

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