Add test

Author: wsmoses

test/llvmpasses/late-lower-gc.ll

@@ -148,6 +148,25 @@ define {} addrspace(10)* @gclift_switch({} addrspace(13)* addrspace(10)* %input,
   ret {} addrspace(10)* %ret
 }
 
+define void @decayar([2 x {} addrspace(10)* addrspace(11)*] %ar) {
+  %v2 = call {}*** @julia.get_pgcstack()
+  %e0 = extractvalue [2 x {} addrspace(10)* addrspace(11)*] %ar, 0
+  %l0 = load {} addrspace(10)*, {} addrspace(10)* addrspace(11)* %e0
+  %e1 = extractvalue [2 x {} addrspace(10)* addrspace(11)*] %ar, 1
+  %l1 = load {} addrspace(10)*, {} addrspace(10)* addrspace(11)* %e1
+  %r = call i32 @callee_root({} addrspace(10)* %l0, {} addrspace(10)* %l1) 
+  ret void
+}
+
+; CHECK-LABEL: @decayar
+; CHECK:  %gcframe = call {} addrspace(10)** @julia.new_gc_frame(i32 2)
+; CHECK:  %1 = call {} addrspace(10)** @julia.get_gc_frame_slot({} addrspace(10)** %gcframe, i32 1)
+; CHECK:  store {} addrspace(10)* %l0, {} addrspace(10)** %1, align 8
+; CHECK:  %2 = call {} addrspace(10)** @julia.get_gc_frame_slot({} addrspace(10)** %gcframe, i32 0)
+; CHECK: store {} addrspace(10)* %l1, {} addrspace(10)** %2, align 8
+; CHECK: %r = call i32 @callee_root({} addrspace(10)* %l0, {} addrspace(10)* %l1)
+; CHECK: call void @julia.pop_gc_frame({} addrspace(10)** %gcframe)
+
 !0 = !{i64 0, i64 23}
 !1 = !{!1}
 !2 = !{!7} ; scope list