[comp.emacs] extra files created by emacs?

tracton@GODOT.RADONC.UNC.EDU (05/07/91)

On May 4 (and other days) I used emacs on a file called impix.cc. 
Sometime during the day, emacs encountered an "Illegal instruction."
I've also been using g++ on this file. Today I see that there are
more files, named similarly, in the same directory:

  -rw-r--r--  1 tracton      1494 May  4 17:02 impix.cc
  -rw-r--r--  1 tracton     36085 May  4 18:07 impix.cc.combine
  -rw-r--r--  1 tracton     34203 May  4 18:07 impix.cc.cse
  -rw-r--r--  1 tracton     42802 May  4 18:07 impix.cc.lreg

Did emacs create these other files? They have LISP code in them. If
these files indicate a bug in emacs, do you want copies of them?

I'm using:
GNU Emacs 18.56.1 of Tue Jan 22 1991 on godot (berkeley-unix)

--gregg tracton