llvm-objdump: Pass DiceTableEntry by reference

DiceTableEntry is 24 bytes on my machine, it's probably better to pass
them by reference.

This fixes PR21464.

llvm-svn: 221247

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/tools/llvm-objdump/MachODump.cpp b/llvm/tools/llvm-objdump/MachODump.cpp
index 50afab7b54c..362a1bafe7c 100644
--- a/llvm/tools/llvm-objdump/MachODump.cpp
+++ b/llvm/tools/llvm-objdump/MachODump.cpp
@@ -124,8 +124,8 @@ typedef std::pair<uint64_t, DiceRef> DiceTableEntry;
 typedef std::vector<DiceTableEntry> DiceTable;
 typedef DiceTable::iterator dice_table_iterator;
 
-static bool compareDiceTableEntries(const DiceTableEntry i,
-                                    const DiceTableEntry j) {
+static bool compareDiceTableEntries(const DiceTableEntry &i,
+                                    const DiceTableEntry &j) {
   return i.first == j.first;
 }