From d9c34b0e0b60d2a27f89c3afe7f6b99964d1f127 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Tue, 30 Jun 2020 15:28:27 +0100
Subject: [PATCH] Pass MDFieldPrinter::printAPInt APInt arg by reference not
 value.

Noticed by clang-tidy performance-unnecessary-value-param warning.
---
 lib/IR/AsmWriter.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/IR/AsmWriter.cpp b/lib/IR/AsmWriter.cpp
index 6930ad85796..d408d7a4705 100644
--- a/lib/IR/AsmWriter.cpp
+++ b/lib/IR/AsmWriter.cpp
@@ -1654,7 +1654,7 @@ struct MDFieldPrinter {
                      bool ShouldSkipNull = true);
   template <class IntTy>
   void printInt(StringRef Name, IntTy Int, bool ShouldSkipZero = true);
-  void printAPInt(StringRef Name, APInt Int, bool IsUnsigned,
+  void printAPInt(StringRef Name, const APInt &Int, bool IsUnsigned,
                   bool ShouldSkipZero);
   void printBool(StringRef Name, bool Value, Optional<bool> Default = None);
   void printDIFlags(StringRef Name, DINode::DIFlags Flags);
@@ -1731,8 +1731,8 @@ void MDFieldPrinter::printInt(StringRef Name, IntTy Int, bool ShouldSkipZero) {
   Out << FS << Name << ": " << Int;
 }
 
-void MDFieldPrinter::printAPInt(StringRef Name, APInt Int, bool IsUnsigned,
-                                bool ShouldSkipZero) {
+void MDFieldPrinter::printAPInt(StringRef Name, const APInt &Int,
+                                bool IsUnsigned, bool ShouldSkipZero) {
   if (ShouldSkipZero && Int.isNullValue())
     return;