[patch] Remove match_insn.

[Ian Lance Taylor]

Zack Weinberg <zack@codesourcery.com> writes:

> Kazu Hirata <kazu@cs.umass.edu> writes:
> 
> > Hi,
> >
> > Attached is a patch to remove match_insn as it is not used in any .md
> > file.
> 
> This looks OK to me, but I do kind of wonder what it used to be for.

Well, this is where the last and perhaps only use disappeared:
    http://gcc.gnu.org/ml/gcc-patches/1999-09n/msg00661.html

And this is where it was added:

Sat Apr 18 01:23:11 1998  John Carr  <jfc@mit.edu>

	* sparc.c, sparc.h, sparc.md, sol2.h: Many changes related to V9
	code generation.  Use 64 bit instructions in 32 bit mode when
	possible.  Use V9 return instruction.  UltraSPARC optimizations.

Ian