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-rw-r--r--lisp/emacs-lisp/comp.el12
1 files changed, 11 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/comp.el b/lisp/emacs-lisp/comp.el
index b212f24bf9c..99cc93580bf 100644
--- a/lisp/emacs-lisp/comp.el
+++ b/lisp/emacs-lisp/comp.el
@@ -74,6 +74,15 @@ This intended for debugging the compiler itself.
:type 'boolean
:group 'comp)
+(defcustom comp-never-optimize-functions
+ '(macroexpand scroll-down scroll-up narrow-to-region widen rename-buffer
+ make-indirect-buffer delete-file top-level abort-recursive-edit)
+ "Primitive functions for which we do not perform trampoline optimization.
+This is especially usefull for primitives known to be advised if bootstrap is
+performed at `comp-speed' > 0."
+ :type 'list
+ :group 'comp)
+
(defconst comp-log-buffer-name "*Native-compile-Log*"
"Name of the native-compiler log buffer.")
@@ -1631,7 +1640,8 @@ Return t if something was changed."
(setf (comp-mvar-ref arg) nil))
args)
args))
- (when (symbolp callee) ; Do nothing if callee is a byte compiled func.
+ (when (and (symbolp callee) ; Do nothing if callee is a byte compiled func.
+ (not (member callee comp-never-optimize-functions)))
(let* ((f (symbol-function callee))
(subrp (subrp f))
(callee-in-unit (gethash callee