diff --git a/asm/asm_test.go b/asm/asm_test.go
index bce7d071..61126b3f 100644
--- a/asm/asm_test.go
+++ b/asm/asm_test.go
@@ -90,6 +90,13 @@ func TestParseFile(t *testing.T) {
 		// parameter attribute.
 		{path: "../testdata/llvm/test/Transforms/InstSimplify/compare.ll"},
 
+		// Calling conventions.
+		{path: "../testdata/llvm/test/Bitcode/calling-conventions.3.2.ll"},
+		{path: "../testdata/llvm/test/CodeGen/X86/tailccfp.ll"},
+
+		// Parameter attributes (nofree).
+		{path: "../testdata/llvm/test/Transforms/Attributor/nonnull.ll"},
+
 		// Basic block labels.
 		{path: "../testdata/llvm/test/Assembler/block-labels.ll"},
 
diff --git a/testdata b/testdata
index 91a38a6b..4015c2bb 160000
--- a/testdata
+++ b/testdata
@@ -1 +1 @@
-Subproject commit 91a38a6bf7b03938460b68fd721795c1a4b18dbd
+Subproject commit 4015c2bb3d4330845662fdf18afee29cc454445b