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Commit 5598153f authored by ram's avatar ram
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Merged non-descriptor changes:

 revision 1.7.1.4
 date: 90/04/13 12:43:56;  author: ram;  state: Exp;  lines added/del: 196/115
 Changed DEFINE-STORAGE-CLASS to give each SC a self-load cost of 0.  Fixed
 it to set *META-SC-NUMBERS* at load time as well as at compile time.
 Souped up DEFINE-MOVE-VOP to implicitly define moves for all SC pairs
 that can be moved with use of load functions.
 Added support for the new :MOVE-ARGS option.
 Fixed up load function computation a bit.  Folded the SCs which share a
 load function together.
 Added backward compatibility for the old :SCS and :TYPE options to
 the :TEMPORARY option.
 Fixed arg restriction computation.
 Fixed DO-ENVIRONMENT-IR2-BLOCKS and DO-LIVE-TNs.
 ----------------------------
 revision 1.7.1.3
 date: 90/04/02 15:24:52;  author: ram;  state: Exp;  lines added/del: 29/17
 Frobbed the syntax to DEFINE-MOVE-FUNCTION to indent better.
 Changed DO-LIVE-TNS to iterate over :MORE TNs properly, rather than
 ignoring them.  We need this now that DO-LIVE-TNS is used in
 INIT-LIVE-TNS.
 ----------------------------
 revision 1.7.1.2
 date: 90/03/27 13:01:07;  author: ram;  state: Exp;  lines added/del: 453/218
 Big changes for new non-descriptor support.

 New DEFINE-STORAGE-CLASS options: :SAVE-P, :ALTERNATE-SCS, :CONSTANT-SCS.
 SB name NUMBER-STACK has magic significance.

 New interfaces DEFINE-MOVE-FUNCTION and DEFINE-MOVE-VOP.

 Flushed PRIMITIVE-SUBTYPEP, PRIMITIVE-TYPE-UNION.

 Flushed :MOVE, :COERCE-TO-T and :COERCE-FROM-T options to PRIMITIVE-TYPE-VOP.
 (only :CHECK remains.)

 Flushed DEFINE-MOVE-COSTS and DEFINE-SAVE-SCS.

 Flushed support for temps restricted to multiple SCs temporary primitive types.
 :SCS is flushed in favor of :SC.  Flushed support for NORMAL temps (i.e. not
 either wired or restricted.)  :SC is now required for temps.

 Moved operand loading back inside the generator function, and allow loading
 to be conditionalized by the :LOAD-IF option.  Allow the load-TN to be accessed
 with the :LOAD-TN option.

 Allow :FROM (:TO) to be specified in results (arguments).

 Dump load-scs vectors instead of restriction bit-vectors.  This contains the
 additional info of what SCs can be loaded by load function and what SC to
 load into.

 Compute operand costs from the load-function costs + the costs for any
 move/coerce VOPs applicable.

 Added support for the new :OR and :CONSTANT operand restrictions.

 Allow :NOTE to be NIL (meaning don't give efficiency note, overriding any
 inherited note.)
 ----------------------------
 revision 1.7.1.1
 date: 90/03/06 11:08:02;  author: ram;  state: Exp;  lines added/del: 71/117
 Start hacking on improved support for non-descriptor values.
parent 8bcc33f5
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