diff options
Diffstat (limited to 'lisp/emacs-lisp/comp.el')
| -rw-r--r-- | lisp/emacs-lisp/comp.el | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/lisp/emacs-lisp/comp.el b/lisp/emacs-lisp/comp.el index 77d47bde8a8..0f71746407a 100644 --- a/lisp/emacs-lisp/comp.el +++ b/lisp/emacs-lisp/comp.el @@ -167,7 +167,7 @@ Can be used by code that wants to expand differently in this case.") :documentation "lisp-func-name -> comp-func. This is to build the prev field.") (data-relocs-l () :type list - :documentation "Constant objects used by functions.") + :documentation "List of pairs (impure . obj-to-reloc).") (data-relocs-idx (make-hash-table :test #'equal) :type hash-table :documentation "Obj -> position into data-relocs.")) @@ -288,8 +288,10 @@ structure.") :documentation "When non nil indicates the type when known at compile time.") (ref nil :type boolean - :documentation "When t the m-var is involved in a call where is passed by - reference.")) + :documentation "When non nil the m-var is involved in a + call where is passed by reference.") + (impure nil :type boolean + :documentation "When non nil can't be copied into pure space.")) ;; Special vars used by some passes (defvar comp-func) @@ -312,14 +314,16 @@ structure.") "Type hint predicate for function name FUNC." (when (member func comp-type-hints) t)) -(defun comp-add-const-to-relocs (obj) +(defun comp-add-const-to-relocs (obj &optional impure) "Keep track of OBJ into the ctxt relocations. +When IMPURE is non nil OBJ cannot be copied into pure space. The corresponding index is returned." - (let ((data-relocs-idx (comp-ctxt-data-relocs-idx comp-ctxt))) - (if-let ((idx (gethash obj data-relocs-idx))) + (let ((data-relocs-idx (comp-ctxt-data-relocs-idx comp-ctxt)) + (packed-obj (cons impure obj))) + (if-let ((idx (gethash packed-obj data-relocs-idx))) idx - (push obj (comp-ctxt-data-relocs-l comp-ctxt)) - (puthash obj (hash-table-count data-relocs-idx) data-relocs-idx)))) + (push packed-obj (comp-ctxt-data-relocs-l comp-ctxt)) + (puthash packed-obj (hash-table-count data-relocs-idx) data-relocs-idx)))) (defmacro comp-within-log-buff (&rest body) "Execute BODY while at the end the log-buffer. @@ -584,11 +588,12 @@ STACK-OFF is the index of the first slot frame involved." for sp from stack-off collect (comp-slot-n sp)))) -(cl-defun make-comp-mvar (&key slot (constant nil const-vld) type) +(cl-defun make-comp-mvar (&key slot (constant nil const-vld) type + impure) (when const-vld - (comp-add-const-to-relocs constant)) + (comp-add-const-to-relocs constant impure)) (make--comp-mvar :slot slot :const-vld const-vld :constant constant - :type type)) + :type type :impure impure)) (defun comp-new-frame (size &optional ssa) "Return a clean frame of meta variables of size SIZE. @@ -1099,7 +1104,7 @@ the annotation emission." (cl-defmethod comp-emit-for-top-level ((form byte-to-native-top-level)) (let ((form (byte-to-native-top-level-form form))) (comp-emit (comp-call 'eval - (make-comp-mvar :constant form) + (make-comp-mvar :constant form :impure t) (make-comp-mvar :constant t))))) (defun comp-limplify-top-level () |