Re: converting rtx object to the assembly instruction.

[Viktor Pobedin <viktor dot pobedin at gmail dot com>]

 On 8/13/2013 10:37 PM, Richard Sandiford wrote:
> Viktor Pobedin<viktor.pobedin@gmail.com>  writes:
> > Is there a simple way to convert rtx object to the assemble
> > insutruction? Ideally I would like to have function something like:
> >       const char *rtx2asm(rtx insn);
> > returning a string with the asm instruction for the insn.
> >
> > Closest thing that I found is the final_scan_insn function in final.c
> > but unfortunatelly it outputs the asm string to the file so it makes it
> > not usefull for my purposes.
> Yeah, I'm afraid that's all there is.
>
> Richard

 Richard,

 Thanks for the clarification. I found a relative easy way to implement
 this function by redirecting the FILE to char. Posting it here, maybe
 someone else will find it usefull:

 char *rtx2asm(rtx insn)
 {
                  static char *bp;
                  size_t size;
                  int seen = 0;
                  FILE *tmp = asm_out_file;
                  asm_out_file = open_memstream(&bp, &size);
                  final_scan_insn (insn, asm_out_file, 0, 0 , &seen);
                  fflush (asm_out_file);
                  asm_out_file = tmp;
                  bp[strlen(bp)-1] = 0;
                  return bp;
 }



 BR, Viktor.