diff --git a/lib/Target/PowerPC/README_ALTIVEC.txt b/lib/Target/PowerPC/README_ALTIVEC.txt
index 4aff927b500..2ae025c34e6 100644
--- a/lib/Target/PowerPC/README_ALTIVEC.txt
+++ b/lib/Target/PowerPC/README_ALTIVEC.txt
@@ -51,9 +51,7 @@ Missing intrinsics:
 
 ds*
 mf*
-vavg*
 vmladduhm
-vmr*
 vsel (some aliases only accessible using builtins)
 
 //===----------------------------------------------------------------------===//
@@ -154,3 +152,7 @@ void test(vector int *X, vector int *Y) {
 }
 
 //===----------------------------------------------------------------------===//
+
+Lower "merges" in the front-end to shuffles, reconstruct in the backend.
+
+//===----------------------------------------------------------------------===//