From 7d5a13799af435d7cc63cec05c65f0fbfc105433 Mon Sep 17 00:00:00 2001
From: Rui Ueyama <ruiu@google.com>
Date: Wed, 29 Nov 2017 22:21:37 +0000
Subject: [PATCH] Use llvm::StringSet instead of std::set.

std::set is pretty slow. We generally prefer llvm::StringSet if we don't
need an sorted set.

Differential Revision: https://reviews.llvm.org/D40579

llvm-svn: 319371
---
 lld/wasm/Config.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lld/wasm/Config.h b/lld/wasm/Config.h
index 7d0708fc751b..b933a7ffb88d 100644
--- a/lld/wasm/Config.h
+++ b/lld/wasm/Config.h
@@ -11,14 +11,13 @@
 #define LLD_WASM_CONFIG_H
 
 #include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringSet.h"
 #include "llvm/BinaryFormat/Wasm.h"
 
 #include "Symbols.h"
 
 using llvm::wasm::WasmGlobal;
 
-#include <set>
-
 namespace lld {
 namespace wasm {
 
@@ -38,7 +37,7 @@ struct Configuration {
   llvm::StringRef OutputFile;
   llvm::StringRef Sysroot;
 
-  std::set<llvm::StringRef> AllowUndefinedSymbols;
+  llvm::StringSet<> AllowUndefinedSymbols;
   std::vector<llvm::StringRef> SearchPaths;
   std::vector<std::pair<Symbol *, WasmGlobal>> SyntheticGlobals;
 };