Re: writing a new Machine Description file (e.g cortex-a57.md) in gcc

Hi Jim,

Thanks for the reply. This of great help.

Thanks Virendra

On 7 May 2015 at 23:42, Jim Wilson jim.wilson@linaro.org wrote:

On Thu, May 7, 2015 at 10:56 AM, Jim Wilson jim.wilson@linaro.org wrote:

...

There are various genX programs that read the md file and generate a insn-X.c file to perform actions based on info in the md file. For instance genrecog creates the insn-recog.c file, which is for recognizing RTL patterns that map to valid instructions on the target. genemit creates the insn-emit.c file which emits the assembly code for an RTL insn. Etc.

I got this wrong. genoutput and insn-output.c are for the assembly code. genemit and insn-emit.c are for emitting the initial RTL.

Jim