From: RICHU NORMAN <richunorman@cusat.ac.in>
To: gcc@gcc.gnu.org
Subject: How target.md file with target.c/.cc file invoke assembly instructions
Date: Wed, 11 May 2022 11:15:31 +0530 [thread overview]
Message-ID: <CAPhpueW8jfLjRPPCFeqJ3ZrvDonXuOHp9VCxAkdYufqfZ2xLTg@mail.gmail.com> (raw)
Hi,
I am new in gcc development and I am focusing on cross-compilers.I have
added a few instructions for the target machine in binutils and invoked it
using asm() from c program.Now I want to add those instructions to gcc and
define that instruction in target.md file.I have a few queries regarding
the working of gcc.
1. Do *target.md* files along with* target.cc/.c <http://target.cc/.c> *files
help to invoke assembly instructions automatically?
2.What is the input for this ?(.gimple or .cfg files)
3.How does it work internally?
4.I have defined an instruction in target.md alone.But that does not
work.How to make it work?
5.What is the use of target.c file and how cost is computed in it?
6.Which file to be examined in rtl-dump of object file for getting the
input and output to this stage in gcc?
--
Thanks & Regards
Richu Norman
next reply other threads:[~2022-05-11 5:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-11 5:45 RICHU NORMAN [this message]
2022-05-11 19:19 ` David Edelsohn
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