From 71d5a2540a98c81f5bcaeb48805e0e2881f530ef Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sun, 16 Apr 2017 16:01:22 +0000
Subject: Vendor import of llvm trunk r300422:
 https://llvm.org/svn/llvm-project/llvm/trunk@300422

---
 lib/Analysis/RegionInfo.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'lib/Analysis/RegionInfo.cpp')

diff --git a/lib/Analysis/RegionInfo.cpp b/lib/Analysis/RegionInfo.cpp
index 8c084ddd2266..63ef8d28d44a 100644
--- a/lib/Analysis/RegionInfo.cpp
+++ b/lib/Analysis/RegionInfo.cpp
@@ -83,6 +83,15 @@ RegionInfo::~RegionInfo() {
 
 }
 
+bool RegionInfo::invalidate(Function &F, const PreservedAnalyses &PA,
+                            FunctionAnalysisManager::Invalidator &) {
+  // Check whether the analysis, all analyses on functions, or the function's
+  // CFG have been preserved.
+  auto PAC = PA.getChecker<RegionInfoAnalysis>();
+  return !(PAC.preserved() || PAC.preservedSet<AllAnalysesOn<Function>>() ||
+           PAC.preservedSet<CFGAnalyses>());
+}
+
 void RegionInfo::updateStatistics(Region *R) {
   ++numRegions;
 
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