diff --git a/llvm/unittests/ADT/TripleTest.cpp b/llvm/unittests/ADT/TripleTest.cpp
index ffce07ba2b125f..ff6c2dde4b161d 100644
--- a/llvm/unittests/ADT/TripleTest.cpp
+++ b/llvm/unittests/ADT/TripleTest.cpp
@@ -1264,6 +1264,14 @@ TEST(TripleTest, getOSVersion) {
   EXPECT_EQ((unsigned)0, Minor);
   EXPECT_EQ((unsigned)0, Micro);
 
+  // For darwin triples on macOS 11, only compare the major version.
+  T = Triple("x86_64-apple-darwin20.2");
+  EXPECT_TRUE(T.isMacOSX());
+  T.getMacOSXVersion(Major, Minor, Micro);
+  EXPECT_EQ((unsigned)11, Major);
+  EXPECT_EQ((unsigned)0, Minor);
+  EXPECT_EQ((unsigned)0, Micro);
+
   T = Triple("armv7-apple-ios");
   EXPECT_FALSE(T.isMacOSX());
   EXPECT_TRUE(T.isiOS());
diff --git a/llvm/unittests/Support/Host.cpp b/llvm/unittests/Support/Host.cpp
index 8029bb5830fc62..b452048361db6e 100644
--- a/llvm/unittests/Support/Host.cpp
+++ b/llvm/unittests/Support/Host.cpp
@@ -348,9 +348,15 @@ TEST_F(HostTest, getMacOSHostVersion) {
   unsigned HostMajor, HostMinor, HostMicro;
   ASSERT_EQ(HostTriple.getMacOSXVersion(HostMajor, HostMinor, HostMicro), true);
 
-  // Don't compare the 'Micro' version, as it's always '0' for the 'Darwin'
-  // triples.
-  ASSERT_EQ(std::tie(SystemMajor, SystemMinor), std::tie(HostMajor, HostMinor));
+  if (SystemMajor > 10) {
+    // Don't compare the 'Minor' and 'Micro' versions, as they're always '0' for
+    // the 'Darwin' triples on 11.x.
+    ASSERT_EQ(SystemMajor, HostMajor);
+  } else {
+    // Don't compare the 'Micro' version, as it's always '0' for the 'Darwin'
+    // triples.
+    ASSERT_EQ(std::tie(SystemMajor, SystemMinor), std::tie(HostMajor, HostMinor));
+  }
 }
 #endif