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  1. Aug 15, 1993
  2. May 25, 1993
  3. May 12, 1993
  4. May 11, 1993
  5. Feb 03, 1993
  6. Jan 13, 1993
  7. Dec 13, 1992
  8. Aug 05, 1992
  9. Jun 05, 1992
  10. Apr 08, 1992
  11. 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
  12. 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
  13. Nov 14, 1991
  14. Nov 12, 1991
  15. Nov 09, 1991
  16. Oct 03, 1991
  17. Sep 03, 1991
  18. Feb 20, 1991
  19. Jan 30, 1991
  20. Jan 22, 1991
  21. Jan 12, 1991
  22. Dec 12, 1990
  23. Dec 04, 1990
  24. Dec 01, 1990
  25. Nov 10, 1990
  26. Oct 10, 1990
  27. Oct 06, 1990
  28. Oct 05, 1990
  29. Oct 03, 1990
  30. Sep 27, 1990
  31. Sep 25, 1990
  32. Sep 24, 1990
    • wlott's avatar
      typo · 07badf51
      wlott authored
      07badf51
  33. Aug 24, 1990
  34. Jun 01, 1990
  35. May 30, 1990
  36. May 23, 1990
  37. May 09, 1990
  38. Mar 28, 1990
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