Implement multiclass inheritance.

llvm-svn: 69810

1 files changed, 32 insertions, 0 deletions

diff --git a/llvm/test/TableGen/MultiClassInherit.td b/llvm/test/TableGen/MultiClassInherit.td
new file mode 100644
index 00000000000..5a1fc7ee405
--- /dev/null
+++ b/llvm/test/TableGen/MultiClassInherit.td
@@ -0,0 +1,32 @@
+// RUN: tblgen %s | grep {zing = 4} | count 4
+
+class C1<int A, string B> { 
+  int bar = A;
+  string thestr = B;
+  int zing;
+}
+
+def T : C1<4, "blah">;
+
+multiclass t<int a> {
+  def S1 : C1<a, "foo"> {
+    int foo = 4;
+    let bar = 1;
+  }
+  def S2 : C1<a, "bar">;
+}
+
+multiclass s<int a, int b> : t<a> {
+  def S3 : C1<b, "moo"> {
+    int moo = 3;
+    let bar = 1;
+  }
+  def S4 : C1<b, "baz">;
+}
+
+defm FOO : s<42, 24>;
+
+def T4 : C1<6, "foo">;
+
+let zing = 4 in
+  defm BAZ : s<3, 4>;