Re: dump after RTL expand

["Steven Bosscher" <stevenb dot gcc at gmail dot com>]

On 1/12/07, Andrija Radicevic <andrija.radicevic@gmail.com> wrote:
> > On Thursday 11 January 2007 19:27, Steven Bosscher wrote:
> > > On 1/11/07, Andrija Radicevic <andrija.radicevic@zg.t-com.hr> wrote:
> > > > Hi,
> > > > how could I find out from which patterns, in the md file, the
> > 00.expand
> > > > file was generated (i.e. to map the patterns in the expand file with
> > the
> > > > ones in the .md file)? Is there a compiler option/switch which would
> > tell
> > > > the compiler mark the patterns in the expand file with the insns names
> > > > from the md file?
> > >
> > > There isn't.
> > >
> > > You would have to walk over the insn and make recog assign them an insn
> > > code.
> >
> > That still wouldn't tell you what names were used to generate them. It's
> > common to have a named expander that generates other (possibly anonymous
> > insns).
> >
>
> Does that mean that the expand file isn't the dump after the initial rtl
> generation phase? According to internals manual, only the named
> define_insn and define_expand are used during rtl generation phase.

The manual is correct, but the define_expands can produce the anonymous insns.

If you recog an insn that isn't a named pattern, you still get the
"name" of the define_insn (with the "*" in front of it) or just "" if
the insn doesn't have a name. You always get at least the insn code.

Gr.
Steven