2 files changed, 3 insertions, 6 deletions
diff --git a/llvm/include/llvm/Analysis/AliasAnalysis.h b/llvm/include/llvm/Analysis/AliasAnalysis.h
index 948341554f2..282142f51bb 100644
--- a/llvm/include/llvm/Analysis/AliasAnalysis.h
+++ b/llvm/include/llvm/Analysis/AliasAnalysis.h
@@ -949,7 +949,7 @@ template <typename DerivedT> class AAResultBase {
 
   /// A pointer to the AAResults object that this AAResult is
   /// aggregated within. May be null if not aggregated.
-  AAResults *AAR;
+  AAResults *AAR = nullptr;
 
   /// Helper to dispatch calls back through the derived type.
   DerivedT &derived() { return static_cast<DerivedT &>(*this); }
diff --git a/llvm/unittests/Analysis/BasicAliasAnalysisTest.cpp b/llvm/unittests/Analysis/BasicAliasAnalysisTest.cpp
index c08366ebc6e..f69d2d14a6c 100644
--- a/llvm/unittests/Analysis/BasicAliasAnalysisTest.cpp
+++ b/llvm/unittests/Analysis/BasicAliasAnalysisTest.cpp
@@ -64,13 +64,10 @@ public:
       : M("BasicAATest", C), B(C), DL(DLString), TLI(TLII), F(nullptr) {}
 };
 
-// FIXME: Both of these are disabled at the moment due to strange buildbot
-// failures. Please see https://bugs.llvm.org/show_bug.cgi?id=42719
-
 // Check that a function arg can't trivially alias a global when we're accessing
 // >sizeof(global) bytes through that arg, unless the access size is just an
 // upper-bound.
-TEST_F(BasicAATest, DISABLED_AliasInstWithObjectOfImpreciseSize) {
+TEST_F(BasicAATest, AliasInstWithObjectOfImpreciseSize) {
   F = Function::Create(
       FunctionType::get(B.getVoidTy(), {B.getInt32Ty()->getPointerTo()}, false),
       GlobalValue::ExternalLinkage, "F", &M);
@@ -104,7 +101,7 @@ TEST_F(BasicAATest, DISABLED_AliasInstWithObjectOfImpreciseSize) {
 
 // Check that we fall back to MayAlias if we see an access of an entire object
 // that's just an upper-bound.
-TEST_F(BasicAATest, DISABLED_AliasInstWithFullObjectOfImpreciseSize) {
+TEST_F(BasicAATest, AliasInstWithFullObjectOfImpreciseSize) {
   F = Function::Create(
       FunctionType::get(B.getVoidTy(), {B.getInt64Ty()}, false),
       GlobalValue::ExternalLinkage, "F", &M);