Update comments to make it clear that the function alignment is the Log2 of the
bytes and not bytes.

llvm-svn: 74624
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index 7d01fa2..3d2e2b7 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -158,7 +158,7 @@
   return MVT::i32;
 }
 
-/// getFunctionAlignment - Return the function alignment.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned MipsTargetLowering::getFunctionAlignment(const Function *) const {
   return 2;
 }