Re: Suggested IRIX6 patch

[jerry at cs dot ucsb dot edu (Jeremiah W. James)]

Doug Semler <doug@seaspace.com> wrote:
> I think it's all hunky dory, but the default ISA used by the native compiler
> is
> mips3 for n32, and mips4 for 64.  Changing the default in egcs would, IMHO
> be a bad thing (ie unexpected for people moving from native to egcs.)
> 
> 
> My $0.02

I have SGI's compiler version 7.1 on a MIPS III machine (Challenge
server).  When I compile with -64 and no -mips option, I get MIPS III
code.  Hence, the default for -64 appears to depend on the type of
machine on which you compile.

While I wouldn't want to confuse those using MIPS IV machines, do note
that -64 is completely unusable for those of us with MIPS III machines
as egcs currently stands.  Perhaps it would be a good idea to either
autodetect the machine type (easily done with a small snippet of MIPS IV
code), or to create a configure option to choose between MIPS III and
MIPS IV defaults for -64.
-- 
Jerry James
Email: jerry@cs.ucsb.edu
WWW:   http://www.cs.ucsb.edu/~jerry/