new testcase

llvm-svn: 15028
diff --git a/llvm/test/Regression/Transforms/InstCombine/IntPtrCast.ll b/llvm/test/Regression/Transforms/InstCombine/IntPtrCast.ll
new file mode 100644
index 0000000..c304982
--- /dev/null
+++ b/llvm/test/Regression/Transforms/InstCombine/IntPtrCast.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep cast
+target pointersize = 32
+
+int *%test(int *%P) {
+	%V = cast int* %P to int
+	%P2 = cast int %V to int*
+	ret int* %P2
+}