1 files changed, 6 insertions, 0 deletions
diff --git a/backend/unittests/CodeGen/TargetRegisterInfoTest.cpp b/backend/unittests/CodeGen/TargetRegisterInfoTest.cpp
index 49f23c0..2c44237 100644
--- a/backend/unittests/CodeGen/TargetRegisterInfoTest.cpp
+++ b/backend/unittests/CodeGen/TargetRegisterInfoTest.cpp
@@ -187,6 +187,12 @@ void testDescriptionRejection(TestContext &Context) {
   }
   {
     auto Description = rcc::test::createTestTargetRegisterInfoDescription();
+    Description.PhysicalRegisters[2].Units.front().Lanes = rcc::LaneMask::fromRaw(0x3);
+    Context.expect(!rcc::TargetRegisterInfo::create(std::move(Description)),
+                   "register-unit views with different lane counts must be rejected");
+  }
+  {
+    auto Description = rcc::test::createTestTargetRegisterInfoDescription();
     Description.RegisterClasses.front().SuperClasses.push_back(
         rcc::test::TestRegisterClass::GPR64Alloc);
     Context.expect(!rcc::TargetRegisterInfo::create(std::move(Description)),