fix a crash in SCCP handling extractvalue of an array, pointed out and
tracked down by Stephan Reiter!

llvm-svn: 86726
diff --git a/llvm/test/Transforms/SCCP/crash.ll b/llvm/test/Transforms/SCCP/crash.ll
index e34eaca..2f6da1d 100644
--- a/llvm/test/Transforms/SCCP/crash.ll
+++ b/llvm/test/Transforms/SCCP/crash.ll
@@ -22,3 +22,8 @@
 return:
   ret void
 }
+
+define i32 @test2([4 x i32] %A) {
+  %B = extractvalue [4 x i32] %A, 1
+  ret i32 %B
+}