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[smlnj] Log of /sml/trunk/src/compiler/CodeGen/ppc/ppcMLTree.sml
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Revision 1003 - (view) (download) (annotate) - [select for diffs]
Modified Fri Dec 7 02:45:32 2001 UTC (18 years, 6 months ago) by george
File length: 2039 byte(s)
Diff to previous 984
Changed the representation of instructions from being fully abstract
to being partially concrete. That is to say:

  from
	type instruction

  to
	type instr				(* machine instruction *)

	datatype instruction =
	    LIVE of {regs: C.cellset, spilled: C.cellset}
          | KILL of {regs: C.cellset, spilled: C.cellset}
          | COPYXXX of {k: CB.cellkind, dst: CB.cell list, src: CB.cell list}
          | ANNOTATION of {i: instruction, a: Annotations.annotation}
          | INSTR of instr

This makes the handling of certain special instructions that appear on
all architectures easier and uniform.

LIVE and KILL say that a list of registers are live or killed at the
program point where they appear. No spill code is generated when an
element of the 'regs' field is spilled, but the register is moved to
the 'spilled' (which is present, more for debugging than anything else).

LIVE replaces the (now deprecated) DEFFREG instruction on the alpha.
We used to generate:

	DEFFREG f1
	f1 := f2 + f3
        trapb

but now generate:

	f1 := f2 + f3
	trapb
	LIVE {regs=[f1,f2,f3], spilled=[]}

Furthermore, the DEFFREG (hack) required that all floating point instruction
use all registers mentioned in the instruction. Therefore f1 := f2 + f3,
defines f1 and uses [f1,f2,f3]! This hack is no longer required resulting
in a cleaner alpha implementation. (Hopefully, intel will not get rid of
this architecture).

COPYXXX is intended to replace the parallel COPY and FCOPY  available on
all the architectures. This will result in further simplification of the
register allocator that must be aware of them for coalescing purposes, and
will also simplify certain aspects of the machine description that provides
callbacks related to parallel copies.

ANNOTATION should be obvious, and now INSTR represents the honest to God
machine instruction set!

The <arch>/instructions/<arch>Instr.sml files define certain utility
functions for making porting easier -- essentially converting upper case
to lower case. All machine instructions (of type instr) are in upper case,
and the lower case form generates an MLRISC instruction. For example on
the alpha we have:

  datatype instr =
     LDA of {r:cell, b:cell, d:operand}
   | ...

  val lda : {r:cell, b:cell, d:operand} -> instruction
    ...

where lda is just (INSTR o LDA), etc.

Revision 984 - (view) (download) (annotate) - [select for diffs]
Modified Wed Nov 21 19:00:08 2001 UTC (18 years, 6 months ago) by george
File length: 2040 byte(s)
Diff to previous 951
  Implemented a complete redesign of MLRISC pseudo-ops. Now there
  ought to never be any question of incompatabilities with
  pseudo-op syntax expected by host assemblers.

  For now, only modules supporting GAS syntax are implemented
  but more should follow, such as MASM, and vendor assembler
  syntax, e.g. IBM as, Sun as, etc.

Revision 951 - (view) (download) (annotate) - [select for diffs]
Modified Tue Oct 9 13:54:40 2001 UTC (18 years, 8 months ago) by george
File length: 1461 byte(s)
Diff to previous 909
Updated input to PERL scripts used to generate
MLRISC cm files.

Revision 909 - (view) (download) (annotate) - [select for diffs]
Modified Fri Aug 24 17:48:53 2001 UTC (18 years, 9 months ago) by george
File length: 1418 byte(s)
Diff to previous 775
removed clusters from MLRISC

Revision 775 - (view) (download) (annotate) - [select for diffs]
Modified Fri Jan 12 01:17:51 2001 UTC (19 years, 4 months ago) by leunga
File length: 1296 byte(s)
Diff to previous 651

    Merging the types labexp and mltree.
    tag leunga-20010111-labexp=mltree

Revision 651 - (view) (download) (annotate) - [select for diffs]
Modified Thu Jun 1 18:34:03 2000 UTC (20 years ago) by monnier
File length: 1189 byte(s)
Diff to previous 555
bring revisions from the vendor branch to the trunk

Revision 555 - (view) (download) (annotate) - [select for diffs]
Modified Fri Mar 3 16:10:30 2000 UTC (20 years, 3 months ago) by george
File length: 1189 byte(s)
Diff to previous 546
lal-20000303-new mltree -- take II

Revision 546 - (view) (download) (annotate) - [select for diffs]
Modified Thu Feb 24 14:04:51 2000 UTC (20 years, 3 months ago) by george
File length: 1141 byte(s)
Diff to previous 476
  Changes to MLTREE

Revision 476 - (view) (download) (annotate) - [select for diffs]
Modified Wed Nov 10 22:59:58 1999 UTC (20 years, 7 months ago) by monnier
File length: 1179 byte(s)
Copied from: sml/branches/SMLNJ/src/compiler/CodeGen/ppc/ppcMLTree.sml revision 475
Diff to previous 475
This commit was generated by cvs2svn to compensate for changes in r475,
which included commits to RCS files with non-trunk default branches.

Revision 475 - (view) (download) (annotate) - [select for diffs]
Modified Wed Nov 10 22:59:58 1999 UTC (20 years, 7 months ago) by monnier
Original Path: sml/branches/SMLNJ/src/compiler/CodeGen/ppc/ppcMLTree.sml
File length: 1179 byte(s)
Diff to previous 469
version 110.24

Revision 469 - (view) (download) (annotate) - [select for diffs]
Modified Wed Nov 10 22:42:52 1999 UTC (20 years, 7 months ago) by monnier
Original Path: sml/branches/SMLNJ/src/compiler/CodeGen/ppc/ppcMLTree.sml
File length: 1138 byte(s)
Diff to previous 429
version 110.23

Revision 429 - (view) (download) (annotate) - [select for diffs]
Modified Wed Sep 8 09:47:00 1999 UTC (20 years, 9 months ago) by monnier
Original Path: sml/branches/SMLNJ/src/compiler/CodeGen/ppc/ppcMLTree.sml
File length: 1220 byte(s)
Diff to previous 411
version 110.21

Revision 411 - (view) (download) (annotate) - [select for diffs]
Modified Fri Sep 3 00:25:03 1999 UTC (20 years, 9 months ago) by monnier
Original Path: sml/branches/SMLNJ/src/compiler/CodeGen/ppc/ppcMLTree.sml
File length: 1252 byte(s)
Diff to previous 245
version 110.19

Revision 245 - (view) (download) (annotate) - [select for diffs]
Added Sat Apr 17 18:47:12 1999 UTC (21 years, 1 month ago) by monnier
Original Path: sml/branches/SMLNJ/src/compiler/CodeGen/ppc/ppcMLTree.sml
File length: 983 byte(s)
version 110.16

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