diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp
index 2423405a11c..b9cdb858b3e 100644
--- a/lib/Target/PowerPC/PPCISelPattern.cpp
+++ b/lib/Target/PowerPC/PPCISelPattern.cpp
@@ -36,10 +36,10 @@
 using namespace llvm;
 
 
-// IsRunOfOnes - Returns true if Val consists of one contiguous run of 1's with
-// any number of 0's on either side.  the 1's are allowed to wrap from LSB to
-// MSB.  so 0x000FFF0, 0x0000FFFF, and 0xFF0000FF are all runs.  0x0F0F0000 is
-// not, since all 1's are not contiguous.
+// IsRunOfOnes - Returns true iff Val consists of one contiguous run of 1s with
+// any number of 0s on either side.  The 1s are allowed to wrap from LSB to
+// MSB, so 0x000FFF0, 0x0000FFFF, and 0xFF0000FF are all runs.  0x0F0F0000 is
+// not, since all 1s are not contiguous.
 static bool IsRunOfOnes(unsigned Val, unsigned &MB, unsigned &ME) {
   if (isShiftedMask_32(Val)) {
     // look for the first non-zero bit