diff --git a/lib/Target/ARM/README.txt b/lib/Target/ARM/README.txt
new file mode 100644
index 000000000000..7d612d019b95
--- /dev/null
+++ b/lib/Target/ARM/README.txt
@@ -0,0 +1,9 @@
+//===---------------------------------------------------------------------===//
+// Random ideas for the ARM backend.
+//===---------------------------------------------------------------------===//
+
+Consider implementing a select with two conditional moves:
+
+cmp x, y
+moveq dst, a
+movne dst, b