diff --git a/lib/Target/X86/README.txt b/lib/Target/X86/README.txt
index 0667580a444..ff77558f245 100644
--- a/lib/Target/X86/README.txt
+++ b/lib/Target/X86/README.txt
@@ -751,3 +751,12 @@ to grab the bytes from the next cacheline.
 //===---------------------------------------------------------------------===//
 
 In c99 mode, the preprocessor doesn't like assembly comments like #TRUNCATE.
+
+//===---------------------------------------------------------------------===//
+
+This could be a single 16-bit load.
+int f(char *p) {
+    if (p[0] == 1 && p[1] == 2) return 1;
+    return 0;
+}
+