[llvm] r212913 - MC: make helper function be more const-correct

[Saleem Abdulrasool]

Author: compnerd
Date: Sun Jul 13 14:03:40 2014
New Revision: 212913

URL: http://llvm.org/viewvc/llvm-project?rev=212913&view=rev
Log:
MC: make helper function be more const-correct

Introduce const-ness on parameters, they are used as read-only and should not be
modified.  NFC.

Modified:
    llvm/trunk/lib/MC/MCWin64EH.cpp

Modified: llvm/trunk/lib/MC/MCWin64EH.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCWin64EH.cpp?rev=212913&r1=212912&r2=212913&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCWin64EH.cpp (original)
+++ llvm/trunk/lib/MC/MCWin64EH.cpp Sun Jul 13 14:03:40 2014
@@ -46,16 +46,13 @@ static uint8_t CountOfUnwindCodes(std::v
   return Count;
 }
 
-static void EmitAbsDifference(MCStreamer &streamer, MCSymbol *lhs,
-                              MCSymbol *rhs) {
-  MCContext &context = streamer.getContext();
-  const MCExpr *diff = MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(
-                                                                  lhs, context),
-                                               MCSymbolRefExpr::Create(
-                                                                  rhs, context),
-                                               context);
-  streamer.EmitAbsValue(diff, 1);
-
+static void EmitAbsDifference(MCStreamer &Streamer, const MCSymbol *LHS,
+                              const MCSymbol *RHS) {
+  MCContext &Context = Streamer.getContext();
+  const MCExpr *Diff =
+      MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(LHS, Context),
+                              MCSymbolRefExpr::Create(RHS, Context), Context);
+  Streamer.EmitAbsValue(Diff, 1);
 }
 
 static void EmitUnwindCode(MCStreamer &streamer, MCSymbol *begin,