From: Aldy Hernandez <aldyh@redhat.com>
Date: Thu, 3 Feb 2022 14:45:55 +0000 (+0100)
Subject: ranger: fix small thinko in fur_list constructor
X-Git-Tag: basepoints/gcc-13~1289
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f544e5efaf2747ee2add3d408cc2f216433ba617;p=thirdparty%2Fgcc.git

ranger: fix small thinko in fur_list constructor

The fur_list constructor for two ranges is leaving [1] in an undefined
state.  The reason we haven't noticed is because after all the
shuffling in the last cycle there are no remaining users of it
(similarly for fur_list(unsigned, irange *)).

Since it's very late in the cycle, I would prefer to fix this, rather
than removing unused constructors altogether.  Besides, we have uses
of them queued up for the next release.

gcc/ChangeLog:

	* gimple-range-fold.cc (fur_list::fur_list): Set m_local[1] correctly.
---

diff --git a/gcc/gimple-range-fold.cc b/gcc/gimple-range-fold.cc
index d70f6a2e8c88..5133a430f254 100644
--- a/gcc/gimple-range-fold.cc
+++ b/gcc/gimple-range-fold.cc
@@ -243,7 +243,7 @@ fur_list::fur_list (irange &r1, irange &r2) : fur_source (NULL)
   m_index = 0;
   m_limit = 2;
   m_local[0] = r1;
-  m_local[0] = r2;
+  m_local[1] = r2;
 }
 
 // Arbitrary number of ranges in a vector.