Add PR number

From-SVN: r262962

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bb9f506..09c2f5f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,6 @@
 2018-07-25  Richard Sandiford  <richard.sandiford@arm.com>
 
+       PR tree-optimization/86644
        * hwint.c (ceil_log2): Fix comment.  Return 0 for 0.
 
 2018-07-25  Martin Liska  <mliska@suse.cz>