Diff of /sml/trunk/HISTORY

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	revision 1184, Fri Mar 29 22:22:22 2002 UTC	revision 1185, Mon Apr 1 22:06:47 2002 UTC
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15	----------------------------------------------------------------------	----------------------------------------------------------------------
16	Name: Matthias Blume	Name: Matthias Blume
17		Date: 2002/04/01 (no joke!) 17:07:00 EST
18		Tag: blume-20020401-x86div
19		Description:
20
21		Added full support for div/mod/rem/quot on the x86, using the machine
22		instruction's two results (without clumsily recomputing the remainder)
23		directly where appropriate.
24
25		Some more extensive power-of-two support was added to the x86 instruction
26		selector (avoiding expensive divs, mods, and muls where they can be
27		replaced with cheaper shifts and masks).  However, this sort of thing
28		ought to be done earlier, e.g., within the CPS optimizer so that
29		all architectures benefit from it.
30
31		The compiler compiles to a fixed point, but changes might be somewhat
32		fragile nevertheless.  Please, report any strange things that you might
33		see wrt. div/mod/quot/rem...
34
35		----------------------------------------------------------------------
36		Name: Matthias Blume
37	Date: 2002/03/29 17:22:00	Date: 2002/03/29 17:22:00
38	Tag: blume-20020329-div	Tag: blume-20020329-div
39	Description:	Description:

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