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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74624 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index cf17599..50d16b1 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -432,7 +432,7 @@
   return MVT::i32;
 }
 
-/// getFunctionAlignment - Return the function alignment.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned PPCTargetLowering::getFunctionAlignment(const Function *F) const {
   if (getTargetMachine().getSubtarget<PPCSubtarget>().isDarwin())
     return F->hasFnAttr(Attribute::OptimizeForSize) ? 2 : 4;