Commit 82e3ca56 authored by ram's avatar ram
Browse files

Changes to handling of inline expansion/inlinep information.

LEXENV-INLINES is gone.  Instead, :NOTINLINE references are changed
to refer to :NOTINLINE DEFINED-FUNCTION leafs.  The previous use
in e.g. locall where we set LEAF-INLINEP to NIL to inhibit further
optimization in the case of an error is now handed by the :ERROR
Moved *failed-optimizations* to COMPONENT-FAILED-OPTIMIZATIONS.  Added
COMPONENT-INLINE-EXPANSIONS which stops infinite (or very frequent) inline
Added :COMPLEX-TOP-LEVEL functional kind used to represent components
with mixed top-level and run-time code.
The DEFINED-FUNCTION leaf stores information about functions where we 
either know the actual definition, inline expansion, or have a non-default
inlinep.  This allows us to clean up the semantics of block compilation
and inline expansion a bit, since we can keep track of both the GLOBAL-VAR
and FUNCTIONAL versions of a function.
parent bcc11492
......@@ -7,7 +7,7 @@
;;; Scott Fahlman or
"$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/node.lisp,v 1.24 1992/04/21 04:15:00 wlott Exp $")
"$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/node.lisp,v 1.25 1992/09/07 15:26:39 ram Exp $")
;;; **********************************************************************
......@@ -16,7 +16,7 @@
;;; Written by Rob MacLachlan
(in-package 'c)
(in-package "C")
(export '(component component-info))
......@@ -33,7 +33,7 @@
(:constructor make-null-environment ())
(:constructor internal-make-lexenv
(functions variables blocks tags type-restrictions
inlines lambda cleanup cookie
lambda cleanup cookie
interface-cookie options)))
;; Alist (name . what), where What is either a Functional (a local function)
......@@ -67,9 +67,6 @@
;; to track the innermost THE type declaration.
(type-restrictions nil :type list)
;; An alist (Leaf . Inlinep) describing local inline declarations.
(inlines nil :type list)
;; The lexically enclosing lambda, if any.
(lambda nil :type (or clambda null))
......@@ -415,11 +412,14 @@
;; The kind of component:
;; NIL
;; An ordinary component, containing arbitrary code.
;; An ordinary component, containing non-top-level code.
;; :Top-Level
;; A component containing only load-time code.
;; :Complex-Top-Level
;; A component containing both top-level and run-time code.
;; :Initial
;; The result of initial IR1 conversion, on which component analysis has
;; not been done.
......@@ -427,7 +427,7 @@
;; :Deleted
;; Debris left over from component analysis.
(kind nil :type (member nil :top-level :initial :deleted))
(kind nil :type (member nil :top-level :complex-top-level :initial :deleted))
;; The blocks that are the dummy head and tail of the DFO. Entry/exit points
;; have these blocks as their predecessors/successors. Null temporarily.
......@@ -465,7 +465,19 @@
;; The Source-Info structure describing where this component was compiled
;; from.
(source-info *source-info* :type source-info))
(source-info *source-info* :type source-info)
;; Count of the number of inline expansions we have done while compiling this
;; component, to detect infinite or exponential blowups.
(inline-expansions 0 :type index)
;; A hashtable from combination nodes to things describing how an
;; optimization of the node failed. The value is an alist
;; (Transform . Args), where Transform is the structure describing the
;; transform that failed, and Args is either a list of format arguments for
;; the note, or the FUNCTION-TYPE that would have enabled the transformation
;; but failed to match.
(failed-optimizations (make-hash-table :test #'eq) :type hash-table))
(defprinter component
......@@ -701,6 +713,32 @@
;;; The Defined-Function structure represents functions that are defined in
;;; the same compilation block, or that have inline expansions, or have a
;;; non-NIL INLINEP value. Whenever we change the INLINEP state (i.e. an
;;; inline proclamation) we copy the structure so that former inlinep values
;;; are preserved.
(defstruct (defined-function (:include global-var
(where-from :defined)
(kind :global-function))
(:print-function %print-defined-function))
;; The values of INLINEP and INLINE-EXPANSION initialized from the global
;; environment.
(inlinep nil :type inlinep)
(inline-expansion nil :type (or cons null))
;; The block-local definition of this function (either because it was
;; semi-inline, or because it was defined in this block.) If this function
;; is not an entry point, then this may be deleted or let-converted. Null if
;; we haven't converted the expansion yet.
(functional nil :type (or functional null)))
(defprinter defined-function
(functional :test functional))
;;;; Function stuff:
......@@ -790,9 +828,13 @@
;; With all other kinds, this is null.
(entry-function nil :type (or functional null))
;; The value of any inline/notinline declaration for a local function.
(inlinep nil :type inlinep)
;; If we have a lambda that can be used as in inline expansion for this
;; function, then this is it. If there is no source-level lambda
;; corresponding to this function then this is Null.
;; corresponding to this function then this is Null (but then INLINEP will
;; always be NIL as well.)
(inline-expansion nil :type list)
;; The lexical environment that the inline-expansion should be converted in.
......@@ -1041,19 +1083,14 @@
(defstruct (ref
(:include node (:reoptimize nil))
(:constructor really-make-ref (derived-type leaf inlinep))
(:constructor really-make-ref (derived-type leaf))
(:print-function %print-ref))
;; The leaf referenced.
(leaf nil :type leaf)
;; For a function variable, indicates the legality of coding inline. Nil,
;; means that there is no relevent declaration so we can do whatever we want.
(inlinep nil :type inlinep))
(leaf nil :type leaf))
(defprinter ref
(inlinep :test inlinep))
;;; Naturally, the IF node always appears at the end of a block. Node-Cont is
......@@ -1115,13 +1152,14 @@
;; variable is unreferenced, and thus no argument value need be passed.
(args nil :type list)
;; The kind of function call being made. :Full is a standard call, with the
;; function being determined at run time. :Local is used when we are calling
;; a function known at compile time. The IR1 for the called function is
;; spliced into the flow graph for the caller. Calls to known global
;; functions are represented by storing the Function-Info for the function in
;; this slot.
(kind :full :type (or (member :full :local) function-info))
;; The kind of function call being made. :LOCAL means that this is a local
;; call to a function in the same component, and that argument syntax
;; checking has been done, etc. Calls to known global functions are
;; represented by storing the FUNCTION-INFO for the function in this slot.
;; :FULL is a call to an (as yet) unknown function. :ERROR is like :FULL,
;; but means that we have discovered that the call contains an error, and
;; should not be reconsidered for optimization.
(kind :full :type (or (member :local :full :error) function-info))
;; Some kind of information attached to this node by the back end.
(info nil))
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