Fix GetTypeInfo for arbitrarily-sized floats

(cherry picked from commit 419c205)

Author: adrian-prantl

lldb/source/Plugins/TypeSystem/Swift/TypeSystemSwiftTypeRef.cpp

@@ -818,8 +818,8 @@ static uint32_t collectTypeInfo(SwiftASTContext *module_holder,
                  node->getText() == swift::BUILTIN_TYPE_NAME_UNKNOWNOBJECT)
           swift_flags |=
               eTypeHasChildren | eTypeIsPointer | eTypeIsScalar | eTypeIsObjC;
-        else if (node->getText() == swift::BUILTIN_TYPE_NAME_FLOAT ||
-                 node->getText() == swift::BUILTIN_TYPE_NAME_FLOAT_PPC)
+        else if (node->getText().startswith(swift::BUILTIN_TYPE_NAME_FLOAT) ||
+                 node->getText().startswith(swift::BUILTIN_TYPE_NAME_FLOAT_PPC))
           swift_flags |= eTypeIsFloat | eTypeIsScalar;
         else if (node->getText().startswith(swift::BUILTIN_TYPE_NAME_VEC))
           swift_flags |= eTypeHasChildren | eTypeIsVector;

lldb/unittests/Symbol/TestTypeSystemSwiftTypeRef.cpp

@@ -196,6 +196,20 @@ TEST_F(TestTypeSystemSwiftTypeRef, Function) {
   }
 }
 
+TEST_F(TestTypeSystemSwiftTypeRef, GetTypeInfo) {
+  using namespace swift::Demangle;
+  Demangler dem;
+  NodeBuilder b(dem);
+  {
+    std::string float32;
+    llvm::raw_string_ostream(float32) << swift::BUILTIN_TYPE_NAME_FLOAT << "32";
+    NodePointer n = b.GlobalType(b.Node(Node::Kind::BuiltinTypeName, float32));
+    CompilerType p = GetCompilerType(b.Mangle(n));
+    ASSERT_EQ(p.GetTypeInfo() & (eTypeIsFloat | eTypeIsScalar),
+              eTypeIsFloat | eTypeIsScalar);
+  }
+}
+
 TEST_F(TestTypeSystemSwiftTypeRef, Pointer) {
   using namespace swift::Demangle;
   Demangler dem;