feature/native-comp 80d7f71 2/2: * Fix defsubst missing inline Bug#42664

[Andrea Corallo]

branch: feature/native-comp
commit 80d7f710f2fab902e46aa3fddb8e1c1795420af3
Author: Andrea Corallo <akrl@sdf.org>
Commit: Andrea Corallo <akrl@sdf.org>

    * Fix defsubst missing inline Bug#42664
    
        * lisp/emacs-lisp/byte-run.el (defsubst): Do not native compile
        defsubsts to have them always effective.
---
 lisp/emacs-lisp/byte-run.el | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lisp/emacs-lisp/byte-run.el b/lisp/emacs-lisp/byte-run.el
index 4c1dce2..5398466 100644
--- a/lisp/emacs-lisp/byte-run.el
+++ b/lisp/emacs-lisp/byte-run.el
@@ -364,7 +364,12 @@ You don't need this.  (See bytecomp.el commentary for more 
details.)
            '(nil byte-compile-inline-expand))
       (error "`%s' is a primitive" name))
   `(prog1
-       (defun ,name ,arglist ,@body)
+       (defun ,name ,arglist
+         ;; Never native-compile defsubsts as we need the byte
+         ;; definition in `byte-compile-unfold-bcf' to perform the
+         ;; inlining (Bug#42664).
+         (declare (speed -1))
+         ,@body)
      (eval-and-compile
        (put ',name 'byte-optimizer 'byte-compile-inline-expand))))