From: Mattias Engdegård <mattiase@acm.org>
Date: Mon, 19 Jun 2023 08:25:15 +0000 (+0200)
Subject: * src/regex-emacs.c (regex_compile): Remove useless condition
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=075e77ac449386c07a4b90e052d1bef7c6a38771;p=emacs.git

* src/regex-emacs.c (regex_compile): Remove useless condition

This condition didn't have any visible effect (as ^ is not a
repetition operator); all it did was to generate slightly worse regexp
bytecode for out-of-place (literal) ^ in the midst of literal
characters (bug#64128).
---

diff --git a/src/regex-emacs.c b/src/regex-emacs.c
index e3237cd425a..fea34df991b 100644
--- a/src/regex-emacs.c
+++ b/src/regex-emacs.c
@@ -2597,7 +2597,7 @@ regex_compile (re_char *pattern, ptrdiff_t size,
 
 	      /* If followed by a repetition operator.  */
 	      || (p != pend
-		  && (*p == '*' || *p == '+' || *p == '?' || *p == '^'))
+		  && (*p == '*' || *p == '+' || *p == '?'))
 	      || (p + 1 < pend && p[0] == '\\' && p[1] == '{'))
 	    {
 	      /* Start building a new exactn.  */