New testcase for folding in some important situations. The first two

come up a lot in the code generated by the C++ front-end for pointers
to member functions.  See PR166.

llvm-svn: 12217

llvm/test/Regression/Assembler/2004-03-07-FunctionAddressAlignment.llx

@@ -0,0 +1,15 @@
+; RUN: llvm-as < %s | llvm-dis | not grep cast
+; All of these should be eliminable
+
+
+int %foo() {
+	ret int and (int cast (int()* %foo to int), int 1)
+}
+
+int %foo2() {
+	ret int and (int 1, int cast (int()* %foo2 to int))
+}
+
+bool %foo3() {
+	ret bool cast (bool()* %foo3 to bool)
+}