From 196a4404116e59aa1940341bb87e7025a687b88d Mon Sep 17 00:00:00 2001
From: Fangrui Song <maskray@google.com>
Date: Thu, 18 Apr 2019 13:33:29 +0000
Subject: [PATCH] [wasm] Simplify. NFC

llvm-svn: 358663
---
 lld/wasm/SymbolTable.cpp | 2 +-
 lld/wasm/Writer.cpp      | 4 ++--
 lld/wasm/WriterUtils.cpp | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lld/wasm/SymbolTable.cpp b/lld/wasm/SymbolTable.cpp
index bbce07486f28..209961632df0 100644
--- a/lld/wasm/SymbolTable.cpp
+++ b/lld/wasm/SymbolTable.cpp
@@ -491,7 +491,7 @@ bool SymbolTable::getFunctionVariant(Symbol* Sym, const WasmSignature *Sig,
   // Linear search through symbol variants.  Should never be more than two
   // or three entries here.
   auto &Variants = SymVariants[CachedHashStringRef(Sym->getName())];
-  if (Variants.size() == 0)
+  if (Variants.empty())
     Variants.push_back(Sym);
 
   for (Symbol* V : Variants) {
diff --git a/lld/wasm/Writer.cpp b/lld/wasm/Writer.cpp
index 044b38319fb1..7309bab04148 100644
--- a/lld/wasm/Writer.cpp
+++ b/lld/wasm/Writer.cpp
@@ -718,12 +718,12 @@ void Writer::createProducersSection() {
 }
 
 void Writer::createTargetFeaturesSection() {
-  if (TargetFeatures.size() == 0)
+  if (TargetFeatures.empty())
     return;
 
   SmallVector<std::string, 8> Emitted(TargetFeatures.begin(),
                                       TargetFeatures.end());
-  std::sort(Emitted.begin(), Emitted.end());
+  llvm::sort(Emitted);
   SyntheticSection *Section =
       createSyntheticSection(WASM_SEC_CUSTOM, "target_features");
   auto &OS = Section->getStream();
diff --git a/lld/wasm/WriterUtils.cpp b/lld/wasm/WriterUtils.cpp
index 599b42b2217c..198c1b988b02 100644
--- a/lld/wasm/WriterUtils.cpp
+++ b/lld/wasm/WriterUtils.cpp
@@ -196,7 +196,7 @@ std::string lld::toString(const WasmSignature &Sig) {
     S += toString(Type);
   }
   S += ") -> ";
-  if (Sig.Returns.size() == 0)
+  if (Sig.Returns.empty())
     S += "void";
   else
     S += toString(Sig.Returns[0]);