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Re: adding a MIPS instruction with operands to GCC

From: Eric Christopher <echristo at apple dot com>
To: guru venky <prasadh dot venkat at gmail dot com>
Cc: gcc-help at gcc dot gnu dot org, gcc at gnu dot org
Date: Wed, 12 Oct 2005 16:45:22 -0700
Subject: Re: adding a MIPS instruction with operands to GCC
References: <a6d5caed0510121640r5dc64f29y110ea841fbd4a7af@mail.gmail.com>

On Oct 12, 2005, at 4:40 PM, guru venky wrote:

I am trying to add a mips instruction with operands to gcc. Basically
I want an instruction that acts as marker for a future instruction.

as an example,

if i want a marker for addi R1,constant (add immediate) instruction, i
would do something like

marker constant

to be emitted by gcc.

can anyone help me achieve this,


You'll want to edit mips.md and add the pattern for the instruction that
you want to emit. If it duplicates existing functionality you'll need to
modify the existing pattern that has that functionality to not match
anymore.

-eric

References:
- adding a MIPS instruction with operands to GCC
  - From: guru venky

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