diff --git a/lib/Target/PowerPC/PPCSubtarget.cpp b/lib/Target/PowerPC/PPCSubtarget.cpp
index f43c18d7dfa..c7a34280ea7 100644
--- a/lib/Target/PowerPC/PPCSubtarget.cpp
+++ b/lib/Target/PowerPC/PPCSubtarget.cpp
@@ -1,4 +1,4 @@
-//===- PowerPCSubtarget.cpp - PPC Subtarget Information ---------*- C++ -*-===//
+//===- PowerPCSubtarget.cpp - PPC Subtarget Information -------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt
index 149c2db34e8..3d0736d65ea 100644
--- a/lib/Target/PowerPC/README.txt
+++ b/lib/Target/PowerPC/README.txt
@@ -396,3 +396,9 @@ of the GOT on targets with one).
 
 Generate lwbrx and other byteswapping load/store instructions when reasonable.
 
+===-------------------------------------------------------------------------===
+
+Implement TargetConstantVec, and set up PPC to custom lower ConstantVec into
+TargetConstantVec's if it's one of the many forms that are algorithmically
+computable using the spiffy altivec instructions.
+