From: Mattias Engdegård <mattiase@acm.org>
Date: Thu, 22 Feb 2024 19:15:33 +0000 (+0100)
Subject: * src/fns.c (hash_string): Suppress warning on 32-bit platforms
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=c5afc11aa5845b213f8f979ea38de7d656aa94b3;p=emacs.git

* src/fns.c (hash_string): Suppress warning on 32-bit platforms

Remove a shift-too-wide complaint by GCC in code that is never reached
on platforms where that shift is too wide.

(cherry picked from commit 53e60fb004c0e8b40b01fcfcf7f406557e35aa3e)
---

diff --git a/src/fns.c b/src/fns.c
index 0a9692f36e8..737757d06cc 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -5086,6 +5086,8 @@ hash_string (char const *ptr, ptrdiff_t len)
       /* String is shorter than an EMACS_UINT.  Use smaller loads.  */
       eassume (p <= end && end - p < sizeof (EMACS_UINT));
       EMACS_UINT tail = 0;
+      verify (sizeof tail <= 8);
+#if EMACS_INT_MAX > INT32_MAX
       if (end - p >= 4)
 	{
 	  uint32_t c;
@@ -5093,6 +5095,7 @@ hash_string (char const *ptr, ptrdiff_t len)
 	  tail = (tail << (8 * sizeof c)) + c;
 	  p += sizeof c;
 	}
+#endif
       if (end - p >= 2)
 	{
 	  uint16_t c;