Testcase for a new instcombine xform, patch contributed by Nick Lewycky!

llvm-svn: 28449

llvm/test/Regression/Transforms/InstCombine/2006-05-10-InvalidIndexUndef.ll

@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep undef
+
+%str = constant [4 x ubyte] c"str\00"
+
+ubyte %main() {
+        %A = load ubyte* getelementptr ([4 x ubyte]* %str, long 0, long 5)
+        ret ubyte %A
+}