ARM test cases contributed by Apple.

llvm-svn: 33354
diff --git a/llvm/test/CodeGen/ARM/str_post.ll b/llvm/test/CodeGen/ARM/str_post.ll
new file mode 100644
index 0000000..366c9f8
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/str_post.ll
@@ -0,0 +1,20 @@
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm &&
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm | grep "strh .*\[.*], #-4"  | wc -l | grep 1 &&
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm | grep "str .*\[.*],"  | wc -l | grep 1
+
+short %test1(int *%X, short *%A) {
+        %Y = load int* %X
+        %tmp1 = cast int %Y to short
+        store short %tmp1, short* %A
+        %tmp2 = cast short* %A to short
+        %tmp3 = sub short %tmp2, 4
+        ret short %tmp3
+}
+
+int %test2(int *%X, int *%A) {
+        %Y = load int* %X
+        store int %Y, int* %A
+        %tmp1 = cast int* %A to int
+        %tmp2 = sub int %tmp1, 4
+        ret int %tmp2
+}