[MC] Fix some Clang-tidy modernize-use-using warnings; other minor fixes (NFC).

llvm-svn: 301485

3 files changed, 13 insertions, 12 deletions

diff --git a/llvm/lib/MC/ELFObjectWriter.cpp b/llvm/lib/MC/ELFObjectWriter.cpp
index ee9c25cda94..e86db933af3 100644
--- a/llvm/lib/MC/ELFObjectWriter.cpp
+++ b/llvm/lib/MC/ELFObjectWriter.cpp
@@ -63,7 +63,7 @@ using namespace llvm;
 
 namespace {
 
-typedef DenseMap<const MCSectionELF *, uint32_t> SectionIndexMapTy;
+using SectionIndexMapTy = DenseMap<const MCSectionELF *, uint32_t>;
 
 class ELFObjectWriter;
 
@@ -194,8 +194,8 @@ public:
                    ELFSymbolData &MSD, const MCAsmLayout &Layout);
 
   // Start and end offset of each section
-  typedef std::map<const MCSectionELF *, std::pair<uint64_t, uint64_t>>
-      SectionOffsetsTy;
+  using SectionOffsetsTy =
+      std::map<const MCSectionELF *, std::pair<uint64_t, uint64_t>>;
 
   bool shouldRelocateWithSymbol(const MCAssembler &Asm,
                                 const MCSymbolRefExpr *RefA,
@@ -208,7 +208,7 @@ public:
                         uint64_t &FixedValue) override;
 
   // Map from a signature symbol to the group section index
-  typedef DenseMap<const MCSymbol *, unsigned> RevGroupMapTy;
+  using RevGroupMapTy = DenseMap<const MCSymbol *, unsigned>;
 
   /// Compute the symbol table data
   ///
diff --git a/llvm/lib/MC/StringTableBuilder.cpp b/llvm/lib/MC/StringTableBuilder.cpp
index fbd7ba60bc9..a0fb33846fc 100644
--- a/llvm/lib/MC/StringTableBuilder.cpp
+++ b/llvm/lib/MC/StringTableBuilder.cpp
@@ -58,7 +58,7 @@ void StringTableBuilder::write(raw_ostream &OS) const {
   OS << Data;
 }
 
-typedef std::pair<CachedHashStringRef, size_t> StringPair;
+using StringPair = std::pair<CachedHashStringRef, size_t>;
 
 void StringTableBuilder::write(uint8_t *Buf) const {
   assert(isFinalized());
diff --git a/llvm/lib/MC/WinCOFFObjectWriter.cpp b/llvm/lib/MC/WinCOFFObjectWriter.cpp
index da8fe73f823..e99a548ac00 100644
--- a/llvm/lib/MC/WinCOFFObjectWriter.cpp
+++ b/llvm/lib/MC/WinCOFFObjectWriter.cpp
@@ -38,6 +38,7 @@
 #include "llvm/Support/JamCRC.h"
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Support/raw_ostream.h"
+#include <algorithm> 
 #include <cassert>
 #include <cstddef>
 #include <cstdint>
@@ -54,7 +55,7 @@ using llvm::support::endian::write32le;
 
 namespace {
 
-typedef SmallString<COFF::NameSize> name;
+using name = SmallString<COFF::NameSize>;
 
 enum AuxiliaryType {
   ATFunctionDefinition,
@@ -75,7 +76,7 @@ class COFFSymbol {
 public:
   COFF::symbol Data = {};
 
-  typedef SmallVector<AuxSymbol, 1> AuxiliarySymbols;
+  using AuxiliarySymbols = SmallVector<AuxSymbol, 1>;
 
   name Name;
   int Index;
@@ -107,7 +108,7 @@ struct COFFRelocation {
   static size_t size() { return COFF::RelocationSize; }
 };
 
-typedef std::vector<COFFRelocation> relocations;
+using relocations = std::vector<COFFRelocation>;
 
 class COFFSection {
 public:
@@ -124,11 +125,11 @@ public:
 
 class WinCOFFObjectWriter : public MCObjectWriter {
 public:
-  typedef std::vector<std::unique_ptr<COFFSymbol>> symbols;
-  typedef std::vector<std::unique_ptr<COFFSection>> sections;
+  using symbols = std::vector<std::unique_ptr<COFFSymbol>>;
+  using sections = std::vector<std::unique_ptr<COFFSection>>;
 
-  typedef DenseMap<MCSymbol const *, COFFSymbol *> symbol_map;
-  typedef DenseMap<MCSection const *, COFFSection *> section_map;
+  using symbol_map = DenseMap<MCSymbol const *, COFFSymbol *>;
+  using section_map = DenseMap<MCSection const *, COFFSection *>;
 
   std::unique_ptr<MCWinCOFFObjectTargetWriter> TargetObjectWriter;