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14 commits

Author SHA1 Message Date
Andy Wingo
dc4fe9741f Add new $calli expression type. 
* module/language/cps.scm ($calli): New expression type which calls a
function entry as originally captured via $code.  Adapt all callers.
 2023-08-17 14:16:12 +02:00
Andy Wingo
cd5ab6377b Add $switch CPS term kind 
* module/language/cps.scm ($switch): New term.
* doc/ref/compiler.texi (CPS in Guile): Add documentation.

* module/language/cps.scm (build-term, parse-cps, unparse-cps)
* module/language/cps/closure-conversion.scm (compute-non-operator-uses)
  (compute-singly-referenced-labels, rewrite-shared-closure-calls)
  (compute-free-vars, convert-one)
* module/language/cps/compile-bytecode.scm (compile-function)
* module/language/cps/contification.scm (compute-singly-referenced-labels)
  (compute-contification-candidates, apply-contification)
* module/language/cps/cse.scm (compute-truthy-expressions)
  (forward-cont, term-successors, eliminate-common-subexpressions-in-fun)
* module/language/cps/dce.scm (compute-known-allocations)
  (compute-live-code, process-eliminations)
* module/language/cps/devirtualize-integers.scm (compute-use-counts)
  (peel-trace)
* module/language/cps/effects-analysis.scm (compute-effects)
* module/language/cps/licm.scm (hoist-one, hoist-in-loop)
* module/language/cps/loop-instrumentation.scm (compute-loop-headers)
* module/language/cps/peel-loops.scm (rename-cont)
* module/language/cps/renumber.scm (sort-labels-locally, renumber)
* module/language/cps/rotate-loops.scm (rotate-loop)
  (rotate-loops-in-function)
* module/language/cps/self-references.scm (resolve-self-references)
* module/language/cps/simplify.scm (compute-singly-referenced-vars)
  (eta-reduce, compute-singly-referenced-labels, beta-reduce)
* module/language/cps/slot-allocation.scm (compute-defs-and-uses)
  (add-prompt-control-flow-edges, compute-var-representations)
* module/language/cps/specialize-numbers.scm (compute-significant-bits)
* module/language/cps/split-rec.scm (compute-free-vars)
* module/language/cps/type-fold.scm (local-type-fold)
* module/language/cps/types.scm (successor-count, infer-types)
* module/language/cps/utils.scm (compute-function-body)
  (compute-successors, compute-predecessors)
* module/language/cps/verify.scm (compute-available-definitions)
  (check-valid-var-uses, check-arities): Add support for new term.
 2020-08-12 23:30:08 +02:00
Andy Wingo
73a769fc2b Add support no closure in $callk 
* module/language/cps/compile-bytecode.scm (compile-function):
* module/language/cps/contification.scm (compute-contification-candidates):
* module/language/cps/cse.scm (apply-cse):
* module/language/cps/dce.scm (compute-live-code):
* module/language/cps/devirtualize-integers.scm (compute-use-counts):
* module/language/cps/peel-loops.scm (rename-cont):
* module/language/cps/renumber.scm (renumber):
* module/language/cps/rotate-loops.scm (rotate-loop):
* module/language/cps/simplify.scm (compute-singly-referenced-vars):
(beta-reduce):
* module/language/cps/slot-allocation.scm (compute-defs-and-uses):
(compute-lazy-vars):
(compute-shuffles):
(compute-frame-size):
(allocate-lazy-vars):
(allocate-slots):
* module/language/cps/specialize-numbers.scm (compute-significant-bits):
* module/language/cps/verify.scm (check-valid-var-uses): Allow for the
  $callk proc to be #f.
* module/language/cps/compile-bytecode.scm (compile-function): Reset
  frame to appropriate size.
 2019-06-07 17:01:43 +02:00
Andy Wingo
39729e8448 Rename $closure to $const-fun 
* module/language/cps.scm ($const-fun): Rename from $closure, as we
  always use this now with nfree == 0.
* module/language/cps/closure-conversion.scm:
* module/language/cps/compile-bytecode.scm:
* module/language/cps/contification.scm:
* module/language/cps/cse.scm:
* module/language/cps/dce.scm:
* module/language/cps/devirtualize-integers.scm:
* module/language/cps/effects-analysis.scm:
* module/language/cps/licm.scm:
* module/language/cps/peel-loops.scm:
* module/language/cps/renumber.scm:
* module/language/cps/rotate-loops.scm:
* module/language/cps/simplify.scm:
* module/language/cps/slot-allocation.scm:
* module/language/cps/specialize-numbers.scm:
* module/language/cps/types.scm:
* module/language/cps/utils.scm:
* module/language/cps/verify.scm: Adapt users.
 2018-10-03 22:58:45 +02:00
Andy Wingo
9f98b4a5b1 Add $code CPS expression type 
* module/language/cps.scm ($code): New CPS type, for labels as values.
  Add cases to all CPS type dispatches.  $closure now indicates only
  statically allocated closures.
* module/language/cps/closure-conversion.scm (convert-one): Only reify
  $closure for statically allocated procedures.  Otherwise allocate an
  object using low-level primitives.
* module/language/cps/compile-bytecode.scm (compile-function): Remove
  make-closure case.
* module/language/cps/slot-allocation.scm (compute-var-representations):
  $code produces a u64 value.
* module/system/vm/assembler.scm: Remove make-closure export.
* module/language/cps/contification.scm:
* module/language/cps/cse.scm:
* module/language/cps/dce.scm:
* module/language/cps/devirtualize-integers.scm:
* module/language/cps/effects-analysis.scm:
* module/language/cps/licm.scm:
* module/language/cps/peel-loops.scm:
* module/language/cps/renumber.scm:
* module/language/cps/rotate-loops.scm:
* module/language/cps/simplify.scm:
* module/language/cps/specialize-numbers.scm:
* module/language/cps/types.scm:
* module/language/cps/utils.scm:
* module/language/cps/verify.scm: Add cases for $code.
 2018-04-10 17:06:27 +02:00
Andy Wingo
ad55ee83c3 $throw is a new kind of CPS term 
* module/language/cps.scm ($throw): New term type that doesn't have a
  continuation.  Adapt all callers.  Remove now-unneeded
  "prune-bailouts" pass.
 2018-01-03 21:25:55 +01:00
Andy Wingo
ee15ca1455 $prompt is now its own kind of CPS term. 
* module/language/cps.scm ($prompt): Rework to be its own term kind.
  Now $continue always continues to a single continuation.  Adapt
  callers.
 2018-01-03 17:32:43 +01:00
Andy Wingo
afb0a92d50 $branch is now a distinct CPS term type 
* module/language/cps.scm ($branch): Refactor to be its own CPS term
  type, not relying on $continue to specify a continuation (which before
  was only for the false case) or a source location.  Update allllllll
  callers.
 2018-01-03 16:16:39 +01:00
Andy Wingo
c54c151eb6 $primcall has a "param" member 
* module/language/cps.scm ($primcall): Add "param" member, which will be
  a constant parameter to the primcall.  The idea is that constants used
  by primcalls as immediates don't need to participate in optimizations
  in any way -- they should not participate in CSE, have the same
  lifetime as the primcall so not part of DCE either, and don't need
  slot allocation.  Indirecting them through a named $const binding is
  complication for no benefit.  This change should eventually improve
  compilation time and memory usage, once we fully take advantage of it,
  as the number of labels and variables will go down.
* module/language/cps/closure-conversion.scm:
* module/language/cps/compile-bytecode.scm:
* module/language/cps/constructors.scm:
* module/language/cps/contification.scm:
* module/language/cps/cse.scm:
* module/language/cps/dce.scm:
* module/language/cps/effects-analysis.scm:
* module/language/cps/elide-values.scm:
* module/language/cps/handle-interrupts.scm:
* module/language/cps/licm.scm:
* module/language/cps/peel-loops.scm:
* module/language/cps/prune-bailouts.scm:
* module/language/cps/prune-top-level-scopes.scm:
* module/language/cps/reify-primitives.scm:
* module/language/cps/renumber.scm:
* module/language/cps/rotate-loops.scm:
* module/language/cps/self-references.scm:
* module/language/cps/simplify.scm:
* module/language/cps/slot-allocation.scm:
* module/language/cps/specialize-numbers.scm:
* module/language/cps/specialize-primcalls.scm:
* module/language/cps/split-rec.scm:
* module/language/cps/type-checks.scm:
* module/language/cps/type-fold.scm:
* module/language/cps/types.scm:
* module/language/cps/utils.scm:
* module/language/cps/verify.scm:
* module/language/tree-il/compile-cps.scm: Adapt all users.
 2017-11-05 15:00:16 +01:00
Andy Wingo
c119623e45 Simplify $branch to always take a $primcall 
* module/language/tree-il/compile-cps.scm (convert): Lower (if foo A B)
  to (if (false? foo) B A).
* module/language/cps/specialize-numbers.scm:
* module/language/cps/closure-conversion.scm:
* module/language/cps/contification.scm:
* module/language/cps/cse.scm:
* module/language/cps/dce.scm:
* module/language/cps/peel-loops.scm:
* module/language/cps/rotate-loops.scm:
* module/language/cps/self-references.scm:
* module/language/cps/simplify.scm:
* module/language/cps/slot-allocation.scm:
* module/language/cps/split-rec.scm:
* module/language/cps/type-fold.scm:
* module/language/cps/types.scm:
* module/language/cps/verify.scm: Adapt.
* module/language/cps/compile-bytecode.scm: Add support for new-style
  false? instruction for false? primcall.
 2017-10-29 10:05:24 +01:00
Andy Wingo
8da33d972a Fix compilation of continue' in while'. 
* module/language/cps/rotate-loops.scm (rotate-loops-in-function): Don't
  attempt to rotate a loop whose header is a $prompt.  Fixes use of
  `continue' in `while'.  Thanks to Nala Ginrut for the report :)
 2016-08-04 21:36:34 +02:00
Andy Wingo
ce2888701c Simplify rotate-loops.scm 
* module/language/cps/rotate-loops.scm: Clean up unused code.
 2015-07-27 12:59:09 +02:00
Andy Wingo
e54fbff185 Loop inversion with multiple exits 
* module/language/cps/rotate-loops.scm (rotate-loop): Instead of
  restricting rotation to loops with just one exit node, restrict to
  loops with just one exit successor.
 2015-07-25 11:03:59 +02:00
Andy Wingo
ee85e2969f Rotate comparisons down to loop back-edges 
* module/language/cps/rotate-loops.scm: New pass.
* module/Makefile.am:
* module/language/cps/optimize.scm: Wire up the new pass.
 2015-07-24 16:51:04 +02:00