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  1. Jan 18, 1997
  2. Oct 31, 1994
  3. Feb 11, 1994
  4. Aug 15, 1993
  5. May 25, 1993
  6. May 12, 1993
  7. May 11, 1993
  8. Feb 03, 1993
  9. Jan 13, 1993
  10. Dec 13, 1992
  11. Aug 05, 1992
  12. Jun 05, 1992
  13. Apr 08, 1992
  14. Feb 03, 1992
    • ram's avatar
      More tweaking of arithmetic identities. (* x 0) transform is also · 3664e7b8
      ram authored
      rational-specific.  Include CONSTANT-ARGUMENT in various arg type restrictions
      so that we don't get silly efficiency notes.
      
      Changed multiply recoding to left-associate the sum so that we are less likely
      to run out of non-descriptor registers.
      3664e7b8
  15. Feb 02, 1992
    • ram's avatar
      Fixed (- x) to expand directly to (%negate x), rather than going by the · 6aa44bff
      ram authored
      intermediate of (- 0 x), since this is not a correct transformation.  (- 0 0.0)
      is 0.0, not -0.0.  Fixed the (- 0 x) transform to be restricted to rational
      args.
      6aa44bff
    • ram's avatar
      Changed COMMUTATIVE-ARG-SWAP to actually splice in the constant arg, so that · ead48ef9
      ram authored
      variable substitution can't swap it back again.
      
      Fixed multiple recoding to include many TRULY-THE's in the expansion so that
      the resulting shift-and-add code would actually open coded.
      
      Added comprehensive handling of arithmetic and logical identities when an arg
      is -1, 0 or +1.
      
      Fixed the (- 0 x) ==> (%negate x) transform to be inhibited when the 0 is more
      contagious than X, or is -0.0.
      ead48ef9
  16. Nov 14, 1991
  17. Nov 12, 1991
  18. Nov 09, 1991
  19. Oct 03, 1991
  20. Sep 03, 1991
  21. Feb 20, 1991
  22. Jan 30, 1991
  23. Jan 22, 1991
  24. Jan 12, 1991
  25. Dec 12, 1990
  26. Dec 04, 1990
  27. Dec 01, 1990
  28. Nov 10, 1990
  29. Oct 10, 1990
  30. Oct 06, 1990
  31. Oct 05, 1990
  32. Oct 03, 1990
  33. Sep 27, 1990
  34. Sep 25, 1990
  35. Sep 24, 1990
    • wlott's avatar
      typo · 07badf51
      wlott authored
      07badf51
  36. Aug 24, 1990
  37. Jun 01, 1990
  38. May 30, 1990
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