diff --git a/clang/lib/StaticAnalyzer/Core/SVals.cpp b/clang/lib/StaticAnalyzer/Core/SVals.cpp
--- a/clang/lib/StaticAnalyzer/Core/SVals.cpp
+++ b/clang/lib/StaticAnalyzer/Core/SVals.cpp
@@ -136,6 +136,8 @@
   }
   template <class ConcreteInt> QualType VisitConcreteInt(ConcreteInt CI) {
     const llvm::APSInt &Value = CI.getValue();
+    if (1 == Value.getBitWidth())
+      return Context.BoolTy;
     return Context.getIntTypeForBitwidth(Value.getBitWidth(), Value.isSigned());
   }
   QualType VisitLocConcreteInt(loc::ConcreteInt CI) {
diff --git a/clang/unittests/StaticAnalyzer/SValTest.cpp b/clang/unittests/StaticAnalyzer/SValTest.cpp
--- a/clang/unittests/StaticAnalyzer/SValTest.cpp
+++ b/clang/unittests/StaticAnalyzer/SValTest.cpp
@@ -161,6 +161,7 @@
 void foo() {
   int x = 42;
   int *y = nullptr;
+  bool z = true;
 })") {
   SVal X = getByName("x");
   ASSERT_FALSE(X.getType(Context).isNull());
@@ -170,6 +171,10 @@
   ASSERT_FALSE(Y.getType(Context).isNull());
   expectSameSignAndBitWidth(Context.getUIntPtrType(), Y.getType(Context),
                             Context);
+
+  SVal Z = getByName("z");
+  ASSERT_FALSE(Z.getType(Context).isNull());
+  EXPECT_EQ(Context.BoolTy, Z.getType(Context));
 }
 
 SVAL_TEST(GetLocAsIntType, R"(