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/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
index 7009649..4c3efde 100644
--- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
@@ -1048,7 +1048,7 @@
   return false;
 }
 
-/// getFunctionAlignment - Return the function alignment.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned SparcTargetLowering::getFunctionAlignment(const Function *) const {
   return 4;
 }