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

2015-05-08 Thread Virendra Kumar Pathak
Hi Jim, Thanks for the reply. This of great help. Thanks Virendra On 7 May 2015 at 23:42, Jim Wilson wrote: > On Thu, May 7, 2015 at 10:56 AM, Jim Wilson 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

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

2015-05-07 Thread Jim Wilson
On Thu, May 7, 2015 at 10:56 AM, Jim Wilson 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 val

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

2015-05-07 Thread Jim Wilson
On Thu, May 7, 2015 at 4:24 AM, Virendra Kumar Pathak wrote: > I am new to gcc development. I am trying to write a new md file describing > pipeline information for a processor. > Please suggest some good reference document for understanding machine > description file. There is some documentation

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

2015-05-07 Thread Virendra Kumar Pathak
Hi Linaro Toolchain Group, I am new to gcc development. I am trying to write a new md file describing pipeline information for a processor. Please suggest some good reference document for understanding machine description file. Few questions from cortex-a53.md file: For first integer pipeline fo