New testcase.

llvm-svn: 3380

llvm/test/Regression/Transforms/GlobalDCE/2002-08-17-FunctionDGE.ll

@@ -0,0 +1,19 @@
+; Make sure that functions are removed successfully if they are referred to by
+; a global that is dead.  Make sure any globals they refer to die as well.
+
+; RUN: if as < %s | opt -globaldce | dis | grep foo
+; RUN: then exit 1
+; RUN: else exit 0
+; RUN: fi
+
+%b = internal global int ()* %foo   ;; Unused, kills %foo
+
+%foo = internal global int 7         ;; Should die when function %foo is killed
+
+implementation
+
+internal int %foo() {               ;; dies when %b dies.
+	%ret = load int* %foo
+	ret int %ret
+}
+