Merge from origin/emacs-28

69e82968d7 Fix integer arithmetic miss-compilation (bug#53451)
31af9bca99 Mark flymake as compatible with emacs-26.1

3 files changed, 24 insertions, 15 deletions

diff --git a/lisp/emacs-lisp/comp-cstr.el b/lisp/emacs-lisp/comp-cstr.el
index ad956dabd8a..9eaf38067f6 100644
--- a/lisp/emacs-lisp/comp-cstr.el
+++ b/lisp/emacs-lisp/comp-cstr.el
@@ -454,18 +454,20 @@ Return them as multiple value."
   (declare (debug (range-body))
            (indent defun))
   `(with-comp-cstr-accessors
-     (when-let ((r1 (range ,src1))
-                (r2 (range ,src2)))
-       (let* ((l1 (comp-cstr-smallest-in-range r1))
-              (l2 (comp-cstr-smallest-in-range r2))
-              (h1 (comp-cstr-greatest-in-range r1))
-              (h2 (comp-cstr-greatest-in-range r2)))
-         (setf (typeset ,dst) (when (cl-some (lambda (x)
-                                               (comp-subtype-p 'float x))
-                                             (append (typeset src1)
-                                                     (typeset src2)))
-                                '(float))
-               (range ,dst) ,@range-body)))))
+     (if (or (neg src1) (neg src2))
+         (setf (typeset ,dst) '(number))
+       (when-let ((r1 (range ,src1))
+                  (r2 (range ,src2)))
+         (let* ((l1 (comp-cstr-smallest-in-range r1))
+                (l2 (comp-cstr-smallest-in-range r2))
+                (h1 (comp-cstr-greatest-in-range r1))
+                (h2 (comp-cstr-greatest-in-range r2)))
+           (setf (typeset ,dst) (when (cl-some (lambda (x)
+                                                 (comp-subtype-p 'float x))
+                                               (append (typeset src1)
+                                                       (typeset src2)))
+                                  '(float))
+                 (range ,dst) ,@range-body))))))
 
 (defun comp-cstr-add-2 (dst src1 src2)
   "Sum SRC1 and SRC2 into DST."
diff --git a/lisp/progmodes/flymake.el b/lisp/progmodes/flymake.el
index e369cb1f21e..83d7bc8641c 100644
--- a/lisp/progmodes/flymake.el
+++ b/lisp/progmodes/flymake.el
@@ -4,9 +4,9 @@
 
 ;; Author: Pavel Kobyakov <pk_at_work@yahoo.com>
 ;; Maintainer: João Távora <joaotavora@gmail.com>
-;; Version: 1.2.1
+;; Version: 1.2.2
 ;; Keywords: c languages tools
-;; Package-Requires: ((emacs "28.1") (eldoc "1.1.0") (project "0.7.1"))
+;; Package-Requires: ((emacs "26.1") (eldoc "1.1.0") (project "0.7.1"))
 
 ;; This is a GNU ELPA :core package.  Avoid functionality that is not
 ;; compatible with the version of Emacs recorded above.
diff --git a/test/src/comp-tests.el b/test/src/comp-tests.el
index 89cb3d153d8..212d9e999f2 100644
--- a/test/src/comp-tests.el
+++ b/test/src/comp-tests.el
@@ -1369,7 +1369,14 @@ Return a list of results."
          (when (eql x 1.0)
            (error ""))
          x)
-       t)))
+       t)
+
+      ;; 74
+      ((defun comp-tests-ret-type-spec-f (x)
+         (if (eq x 0)
+             (error "")
+           (1+ x)))
+       number)))
 
   (defun comp-tests-define-type-spec-test (number x)
     `(comp-deftest ,(intern (format "ret-type-spec-%d" number)) ()