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Re: [MIPS] ST Loongson 2E/2F submission
- From: "Ruan Beihong" <ruanbeihong at gmail dot com>
- To: maxim at codesourcery dot com
- Cc: gcc-patches at gcc dot gnu dot org, joefoxreal at gmail dot com, rsandifo at nildram dot co dot uk
- Date: Sat, 24 May 2008 18:36:16 +0800
- Subject: Re: [MIPS] ST Loongson 2E/2F submission
Loonsong also has some 3 oprands "imult" "idiv" "mod" instructions
which I can't find in the patches.
These instructions have lower latency and directly operate on GPR thus
no need to use HI LO.
I have done tests which showed these instruction really useful.
I think the authors of these patches must have seen those
instructions. I hope they will be seen in following patches.
Regards,
James Ruan