From a5b863c29bb27b77200b7c683ecdf56f4426fade Mon Sep 17 00:00:00 2001
From: Sanjoy Das <sanjoy@playingwithpointers.com>
Date: Thu, 2 Apr 2015 04:58:12 +0000
Subject: [PATCH] [ADT] Increment epoch from DenseMap::swap.
Swapping DenseMap A with DenseMap B invalidates iterators pointing into
both A and B.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233890 91177308-0d34-0410-b5e6-96231b3b80d8
---
include/llvm/ADT/DenseMap.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/llvm/ADT/DenseMap.h b/include/llvm/ADT/DenseMap.h
index 443a620d1af..7bfa8b22f7a 100644
--- a/include/llvm/ADT/DenseMap.h
+++ b/include/llvm/ADT/DenseMap.h
@@ -584,6 +584,8 @@ public:
}
void swap(DenseMap& RHS) {
+ this->incrementEpoch();
+ RHS.incrementEpoch();
std::swap(Buckets, RHS.Buckets);
std::swap(NumEntries, RHS.NumEntries);
std::swap(NumTombstones, RHS.NumTombstones);
--
2.34.1