[WebAssembly] clang-tidy (NFC)

[aheejin]

Summary

This patch fixes clang-tidy warnings on wasm-only files.
The list of checks used is:
-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,readability-identifier-naming,modernize-*
(LLVM's default .clang-tidy list is the same except it does not have
modernize-*. But I've seen in multiple CLs in LLVM the modernize style
was recommended and code was fixed based on the style, so I added it as
well.)

The common fixes are:

• Variable names start with an uppercase letter
• Function names start with a lowercase letter
• Use auto when you use casts so the type is evident
• Use inline initialization for class member variables
• Use = default for empty constructors / destructors
• Use using in place of typedef

[aheejin]

I know LLVM does not encourage large-scale reformatting CLs. But as in my previous clang-format CL some months ago, the total changed LOC is around several hundred lines, so I'd like to try and hear opinions. Most of the changed lines are from renaming functions and variables. I'd also be happy to revert for the part of change people don't agree on or split this into multiple CLs, each of which possibly fixes smaller number of issues.

[aheejin]

• Revert an unintended comment change

[aardappel]

LGTM!

[sbc100]

Generally LGTM. I requested holding back on a few change. Hope this makes sense.

lib/MC/MCSectionWasm.cpp

17

I guess you are removing this anchor because we have other methods below?

lib/MC/WasmObjectWriter.cpp

1322

This looks wrong.. unless size is some kind of struct?

lib/Object/WasmObjectFile.cpp

1352

I prefer the old version here.

1373

Revert this?

lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp

83

Can you explain this change?

278

I prefer it was it was

lib/Target/WebAssembly/CMakeLists.txt

48 ↗

(On Diff #184458)

What is this?

lib/Target/WebAssembly/MCTargetDesc/WebAssemblyAsmBackend.cpp

37–38

Should we just remove this line?

lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCAsmInfo.h

26 ↗

(On Diff #184458)

Remove?

lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp

246

Revert.

lib/Target/WebAssembly/WebAssemblyAsmPrinter.h

61 ↗

(On Diff #184458)

Revert this.. presumably its better to match the others.

lib/Target/WebAssembly/WebAssemblyExplicitLocals.cpp

218 ↗

(On Diff #184458)

It it worth it in this case?

lib/Target/WebAssembly/WebAssemblyFastISel.cpp

97

Is this actually better? Perhaps revert this?

lib/Target/WebAssembly/WebAssemblyISelLowering.cpp

326

Revert? This seem unrelated.

lib/Target/WebAssembly/WebAssemblyISelLowering.h

104 ↗

(On Diff #184458)

Perhaps lets stick with the ISel convention of calling everything "LowerXX" for now.

Better to match the convention than be locally style conformant I think

lib/Target/WebAssembly/WebAssemblyMCInstLower.h

36

I think this mirror methods in several other classes (e.g. AsmPrinter) so perhaps should keep their names for now

lib/Target/WebAssembly/WebAssemblySelectionDAGInfo.h

24 ↗

(On Diff #184458)

Remove?

lib/Target/WebAssembly/WebAssemblyTargetMachine.h

34 ↗

(On Diff #184458)

Remove?

tools/obj2yaml/wasm2yaml.cpp

373

revert

[tlively]

lib/Target/WebAssembly/CMakeLists.txt

48 ↗

(On Diff #184458)

I actually put something useful in this file in https://reviews.llvm.org/D57498, so please revert this particular change.

lib/Target/WebAssembly/WebAssemblyFastISel.cpp

97

FWIW, I'm not a fan to adding underscores to create new identifiers.

lib/Target/WebAssembly/WebAssemblyISelLowering.cpp

326

I think clang tidy just doesn't like identifiers that are all caps with underscores.

lib/Target/WebAssembly/WebAssemblyISelLowering.h

104 ↗

(On Diff #184458)

+1

tools/llvm-objdump/WasmDump.cpp

51

This should be reverted if we revert the other similar changes.

[aheejin]

Thank you for the feedback! Addressed comments:

• Delete constructors/destructors marked as = default when not necessary
• Revert all changes related to modernize-return-braced-init-list warning
• Revert function name changes when they are inconsistent with overriden ones

[aheejin]

lib/MC/MCSectionWasm.cpp

17

Its declaration is marked as = default in include/llvm/MC/MCSectionWasm.h, like

~MCSectionWasm() = default;

lib/MC/WasmObjectWriter.cpp

1322

It returns MCExpr *.

lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp

83

The warning was generated by modernize-use-override rule. But looks like there are debates on whether to do this on destructors and CPP core guidelines seems to explicitly discourage it. Reverted this change.

lib/Target/WebAssembly/CMakeLists.txt

48 ↗

(On Diff #184458)

That file contained only a blank destructor

WebAssemblySelectionDAGInfo::~WebAssemblySelectionDAGInfo() {}

which I marked with = default in the header file. But because @tlively is using the file, I'll restore it.

lib/Target/WebAssembly/WebAssemblyExplicitLocals.cpp

218 ↗

(On Diff #184458)

Reverted it.

lib/Target/WebAssembly/WebAssemblyFastISel.cpp

97

I'm not either. And also there are a lot of set*** style functions in LLVM codebase and not many functions are using this style argument name with an underscore. But I don't feel strongly about either option, so please let me know if you still prefer the original code.

lib/Target/WebAssembly/WebAssemblyISelLowering.cpp

326

clang-tidy does not have problems with all caps but does not like underscores. Still revert?

[aheejin]

lib/MC/MCSectionWasm.cpp

17

By the way it was also deleted from the header file anyway.

[aheejin]

• Deleted ~MCSectionWasm() = default

[aheejin]

lib/MC/MCWasmObjectTargetWriter.cpp

17

Hmm, I've deleted all unnecessary = default destructors, but I guess they had purposes..? Do you know what this is for?

[sbc100]

lib/MC/MCWasmObjectTargetWriter.cpp

17

As assume its just the above reason "to pin the vtable to this object file".

See:
https://llvm.org/docs/CodingStandards.html#provide-a-virtual-method-anchor-for-classes-in-headers

[aheejin]

• Restored out-of-line destructor anchors w/ = default keyword

[aheejin]

Does anyone have other concerns?

[aheejin]

• Revert more modernize-return-braced-init-list changes
• Remove .clang-tidy that was added by mistake

[aheejin]

lib/Target/WebAssembly/WebAssemblyISelLowering.cpp

1057

Because we decided not to fix modernize-return-braced-init-list warning, I reverted a pre-existing case for consistency.

[aheejin]

Will land this if no one has other concerns.

[aheejin]

rebase

.clang-tidy

-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,readability-identifier-naming'
+Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,readability-identifier-naming,modernize-*'
 CheckOptions:
   - key:             readability-identifier-naming.ClassCase
     value:           CamelCase
   - key:             readability-identifier-naming.EnumCase
     value:           CamelCase
   - key:             readability-identifier-naming.FunctionCase
     value:           camelBack
   - key:             readability-identifier-naming.MemberCase
     value:           CamelCase
   - key:             readability-identifier-naming.ParameterCase
     value:           CamelCase
   - key:             readability-identifier-naming.UnionCase
     value:           CamelCase
   - key:             readability-identifier-naming.VariableCase
     value:           CamelCase
 

include/llvm/MC/MCSectionWasm.h

class MCSectionWasm final : public MCSection {
 
   void setSectionName(StringRef Name) { SectionName = Name; }
 
 public:
   ~MCSectionWasm();
 
   /// Decides whether a '.section' directive should be printed before the
   /// section name
-  bool ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
+  bool shouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
 
   StringRef getSectionName() const { return SectionName; }
   const MCSymbolWasm *getGroup() const { return Group; }
 
   void PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
                             raw_ostream &OS,
                             const MCExpr *Subsection) const override;
   bool UseCodeAlign() const override;

lib/BinaryFormat/Wasm.cpp

 //===-- llvm/BinaryFormat/Wasm.cpp -------------------------------*- C++-*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/BinaryFormat/Wasm.h"
 
-std::string llvm::wasm::toString(wasm::WasmSymbolType type) {
-  switch (type) {
+std::string llvm::wasm::toString(wasm::WasmSymbolType Type) {
+  switch (Type) {
   case wasm::WASM_SYMBOL_TYPE_FUNCTION:
     return "WASM_SYMBOL_TYPE_FUNCTION";
   case wasm::WASM_SYMBOL_TYPE_GLOBAL:
     return "WASM_SYMBOL_TYPE_GLOBAL";
   case wasm::WASM_SYMBOL_TYPE_DATA:
     return "WASM_SYMBOL_TYPE_DATA";
   case wasm::WASM_SYMBOL_TYPE_SECTION:
     return "WASM_SYMBOL_TYPE_SECTION";
   case wasm::WASM_SYMBOL_TYPE_EVENT:
     return "WASM_SYMBOL_TYPE_EVENT";
   }
   llvm_unreachable("unknown symbol type");
 }
 
-std::string llvm::wasm::relocTypetoString(uint32_t type) {
-  switch (type) {
+std::string llvm::wasm::relocTypetoString(uint32_t Type) {
+  switch (Type) {
 #define WASM_RELOC(NAME, VALUE)                                                \
   case VALUE:                                                                  \
     return #NAME;
 #include "llvm/BinaryFormat/WasmRelocs.def"
 #undef WASM_RELOC
   default:
     llvm_unreachable("unknown reloc type");
   }
 }

lib/MC/MCParser/WasmAsmParser.cpp

 #include "llvm/MC/MCSymbolWasm.h"
 #include "llvm/Support/MachineValueType.h"
 
 using namespace llvm;
 
 namespace {
 
 class WasmAsmParser : public MCAsmParserExtension {
-  MCAsmParser *Parser;
-  MCAsmLexer *Lexer;
+  MCAsmParser *Parser = nullptr;
+  MCAsmLexer *Lexer = nullptr;
 
   template<bool (WasmAsmParser::*HandlerMethod)(StringRef, SMLoc)>
   void addDirectiveHandler(StringRef Directive) {
     MCAsmParser::ExtensionDirectiveHandler Handler = std::make_pair(
         this, HandleDirective<WasmAsmParser, HandlerMethod>);
 
     getParser().addDirectiveHandler(Directive, Handler);
   }
 
 public:
-  WasmAsmParser() : Parser(nullptr), Lexer(nullptr) {
-    BracketExpressionsSupported = true;
-  }
+  WasmAsmParser() { BracketExpressionsSupported = true; }
 
   void Initialize(MCAsmParser &P) override {
     Parser = &P;
     Lexer = &Parser->getLexer();
     // Call the base implementation.
     this->MCAsmParserExtension::Initialize(*Parser);
 
     addDirectiveHandler<&WasmAsmParser::parseSectionDirectiveText>(".text");
     addDirectiveHandler<&WasmAsmParser::parseSectionDirective>(".section");
     addDirectiveHandler<&WasmAsmParser::parseDirectiveSize>(".size");
     addDirectiveHandler<&WasmAsmParser::parseDirectiveType>(".type");
   }
 
-  bool Error(const StringRef &msg, const AsmToken &tok) {
-    return Parser->Error(tok.getLoc(), msg + tok.getString());
+  bool error(const StringRef &Msg, const AsmToken &Tok) {
+    return Parser->Error(Tok.getLoc(), Msg + Tok.getString());
   }
 
-  bool IsNext(AsmToken::TokenKind Kind) {
-    auto ok = Lexer->is(Kind);
-    if (ok) Lex();
-    return ok;
+  bool isNext(AsmToken::TokenKind Kind) {
+    auto Ok = Lexer->is(Kind);
+    if (Ok)
+      Lex();
+    return Ok;
   }
 
-  bool Expect(AsmToken::TokenKind Kind, const char *KindName) {
-    if (!IsNext(Kind))
-      return Error(std::string("Expected ") + KindName + ", instead got: ",
+  bool expect(AsmToken::TokenKind Kind, const char *KindName) {
+    if (!isNext(Kind))
+      return error(std::string("Expected ") + KindName + ", instead got: ",
                    Lexer->getTok());
     return false;
   }
 
   bool parseSectionDirectiveText(StringRef, SMLoc) {
     // FIXME: .text currently no-op.
     return false;
   }
 
   bool parseSectionDirective(StringRef, SMLoc) {
     StringRef Name;
     if (Parser->parseIdentifier(Name))
       return TokError("expected identifier in directive");
     // FIXME: currently requiring this very fixed format.
-    if (Expect(AsmToken::Comma, ",") || Expect(AsmToken::String, "string") ||
-        Expect(AsmToken::Comma, ",") || Expect(AsmToken::At, "@") ||
-        Expect(AsmToken::EndOfStatement, "eol"))
+    if (expect(AsmToken::Comma, ",") || expect(AsmToken::String, "string") ||
+        expect(AsmToken::Comma, ",") || expect(AsmToken::At, "@") ||
+        expect(AsmToken::EndOfStatement, "eol"))
       return true;
     auto WS = getContext().getWasmSection(Name, SectionKind::getText());
     getStreamer().SwitchSection(WS);
     return false;
   }
 
   // TODO: This function is almost the same as ELFAsmParser::ParseDirectiveSize
   // so maybe could be shared somehow.
   bool parseDirectiveSize(StringRef, SMLoc) {
     StringRef Name;
     if (Parser->parseIdentifier(Name))
       return TokError("expected identifier in directive");
     auto Sym = getContext().getOrCreateSymbol(Name);
-    if (Expect(AsmToken::Comma, ","))
+    if (expect(AsmToken::Comma, ","))
       return true;
     const MCExpr *Expr;
     if (Parser->parseExpression(Expr))
       return true;
-    if (Expect(AsmToken::EndOfStatement, "eol"))
+    if (expect(AsmToken::EndOfStatement, "eol"))
       return true;
     // MCWasmStreamer implements this.
     getStreamer().emitELFSize(Sym, Expr);
     return false;
   }
 
   bool parseDirectiveType(StringRef, SMLoc) {
     // This could be the start of a function, check if followed by
     // "label,@function"
     if (!Lexer->is(AsmToken::Identifier))
-      return Error("Expected label after .type directive, got: ",
+      return error("Expected label after .type directive, got: ",
                    Lexer->getTok());
     auto WasmSym = cast<MCSymbolWasm>(
                      getStreamer().getContext().getOrCreateSymbol(
                        Lexer->getTok().getString()));
     Lex();
-    if (!(IsNext(AsmToken::Comma) && IsNext(AsmToken::At) &&
+    if (!(isNext(AsmToken::Comma) && isNext(AsmToken::At) &&
           Lexer->is(AsmToken::Identifier)))
-      return Error("Expected label,@type declaration, got: ", Lexer->getTok());
+      return error("Expected label,@type declaration, got: ", Lexer->getTok());
     auto TypeName = Lexer->getTok().getString();
     if (TypeName == "function")
       WasmSym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
     else if (TypeName == "global")
       WasmSym->setType(wasm::WASM_SYMBOL_TYPE_GLOBAL);
     else
-      return Error("Unknown WASM symbol type: ", Lexer->getTok());
+      return error("Unknown WASM symbol type: ", Lexer->getTok());
     Lex();
-    return Expect(AsmToken::EndOfStatement, "EOL");
+    return expect(AsmToken::EndOfStatement, "EOL");
   }
 };
 
 } // end anonymous namespace
 
 namespace llvm {
 
 MCAsmParserExtension *createWasmAsmParser() {
   return new WasmAsmParser;
 }
 
 } // end namespace llvm

lib/MC/MCSectionWasm.cpp

 //===- lib/MC/MCSectionWasm.cpp - Wasm Code Section Representation --------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCSectionWasm.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/Support/raw_ostream.h"
 
 using namespace llvm;
 
-MCSectionWasm::~MCSectionWasm() {} // anchor.
+MCSectionWasm::~MCSectionWasm() = default; // anchor.
 
 // Decides whether a '.section' directive
 // should be printed before the section name.
-bool MCSectionWasm::ShouldOmitSectionDirective(StringRef Name,
+bool MCSectionWasm::shouldOmitSectionDirective(StringRef Name,
                                                const MCAsmInfo &MAI) const {
   return MAI.shouldOmitSectionDirective(Name);
 }
 
 static void printName(raw_ostream &OS, StringRef Name) {
   if (Name.find_first_not_of("0123456789_."
                              "abcdefghijklmnopqrstuvwxyz"
                              "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
static void printName(raw_ostream &OS, StringRef Name) {
   }
   OS << '"';
 }
 
 void MCSectionWasm::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
                                          raw_ostream &OS,
                                          const MCExpr *Subsection) const {
 
-  if (ShouldOmitSectionDirective(SectionName, MAI)) {
+  if (shouldOmitSectionDirective(SectionName, MAI)) {
     OS << '\t' << getSectionName();
     if (Subsection) {
       OS << '\t';
       Subsection->print(OS, &MAI);
     }
     OS << '\n';
     return;
   }

lib/MC/MCWasmObjectTargetWriter.cpp

 //===-- MCWasmObjectTargetWriter.cpp - Wasm Target Writer Subclass --------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCWasmObjectWriter.h"
 
 using namespace llvm;
 
-MCWasmObjectTargetWriter::MCWasmObjectTargetWriter(bool Is64Bit_)
-    : Is64Bit(Is64Bit_) {}
+MCWasmObjectTargetWriter::MCWasmObjectTargetWriter(bool Is64Bit)
+    : Is64Bit(Is64Bit) {}
 
 // Pin the vtable to this object file
 MCWasmObjectTargetWriter::~MCWasmObjectTargetWriter() = default;

lib/MC/MCWasmStreamer.cpp

 #include "llvm/Support/Casting.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/TargetRegistry.h"
 #include "llvm/Support/raw_ostream.h"
 
 using namespace llvm;
 
-MCWasmStreamer::~MCWasmStreamer() {}
+MCWasmStreamer::~MCWasmStreamer() = default; // anchor.
 
 void MCWasmStreamer::mergeFragment(MCDataFragment *DF, MCDataFragment *EF) {
   flushPendingLabels(DF, DF->getContents().size());
 
-  for (unsigned i = 0, e = EF->getFixups().size(); i != e; ++i) {
-    EF->getFixups()[i].setOffset(EF->getFixups()[i].getOffset() +
+  for (unsigned I = 0, E = EF->getFixups().size(); I != E; ++I) {
+    EF->getFixups()[I].setOffset(EF->getFixups()[I].getOffset() +
                                  DF->getContents().size());
-    DF->getFixups().push_back(EF->getFixups()[i]);
+    DF->getFixups().push_back(EF->getFixups()[I]);
   }
   if (DF->getSubtargetInfo() == nullptr && EF->getSubtargetInfo())
     DF->setHasInstructions(*EF->getSubtargetInfo());
   DF->getContents().append(EF->getContents().begin(), EF->getContents().end());
 }
 
 void MCWasmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
   // Let the target do whatever target specific stuff it needs to do.
void MCWasmStreamer::EmitInstToData(const MCInst &Inst,
   raw_svector_ostream VecOS(Code);
   Assembler.getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI);
 
   // Append the encoded instruction to the current data fragment (or create a
   // new such fragment if the current fragment is not a data fragment).
   MCDataFragment *DF = getOrCreateDataFragment();
 
   // Add the fixups and data.
-  for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
-    Fixups[i].setOffset(Fixups[i].getOffset() + DF->getContents().size());
-    DF->getFixups().push_back(Fixups[i]);
+  for (unsigned I = 0, E = Fixups.size(); I != E; ++I) {
+    Fixups[I].setOffset(Fixups[I].getOffset() + DF->getContents().size());
+    DF->getFixups().push_back(Fixups[I]);
   }
   DF->setHasInstructions(STI);
   DF->getContents().append(Code.begin(), Code.end());
 }
 
 void MCWasmStreamer::FinishImpl() {
   EmitFrames(nullptr);
 

lib/MC/WasmObjectWriter.cpp

 using namespace llvm;
 
 #define DEBUG_TYPE "mc"
 
 namespace {
 
 // Went we ceate the indirect function table we start at 1, so that there is
 // and emtpy slot at 0 and therefore calling a null function pointer will trap.
-static const uint32_t kInitialTableOffset = 1;
+static const uint32_t InitialTableOffset = 1;
 
 // For patching purposes, we need to remember where each section starts, both
 // for patching up the section size field, and for patching up references to
 // locations within the section.
 struct SectionBookkeeping {
   // Where the size of the section is written.
   uint64_t SizeOffset;
   // Where the section header ends (without custom section name).
   uint64_t PayloadOffset;
   // Where the contents of the section starts.
   uint64_t ContentsOffset;
   uint32_t Index;
 };
 
 // The signature of a wasm function or event, in a struct capable of being used
 // as a DenseMap key.
 // TODO: Consider using wasm::WasmSignature directly instead.
 struct WasmSignature {
   // Support empty and tombstone instances, needed by DenseMap.
-  enum { Plain, Empty, Tombstone } State;
+  enum { Plain, Empty, Tombstone } State = Plain;
 
   // The return types of the function.
   SmallVector<wasm::ValType, 1> Returns;
 
   // The parameter types of the function.
   SmallVector<wasm::ValType, 4> Params;
 
-  WasmSignature() : State(Plain) {}
-
   bool operator==(const WasmSignature &Other) const {
     return State == Other.State && Returns == Other.Returns &&
            Params == Other.Params;
   }
 };
 
 // Traits for using WasmSignature in a DenseMap.
 struct WasmSignatureDenseMapInfo {
Out << wasm::relocTypetoString(Type) << " Off=" << Offset
         << ", FixupSection=" << FixupSection->getSectionName();
   }
 
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
   LLVM_DUMP_METHOD void dump() const { print(dbgs()); }
 #endif
 };
 
-static const uint32_t INVALID_INDEX = -1;
+static const uint32_t InvalidIndex = -1;
 
 struct WasmCustomSection {
 
   StringRef Name;
   MCSectionWasm *Section;
 
   uint32_t OutputContentsOffset;
   uint32_t OutputIndex;
 
   WasmCustomSection(StringRef Name, MCSectionWasm *Section)
       : Name(Name), Section(Section), OutputContentsOffset(0),
-        OutputIndex(INVALID_INDEX) {}
+        OutputIndex(InvalidIndex) {}
 };
 
 #if !defined(NDEBUG)
 raw_ostream &operator<<(raw_ostream &OS, const WasmRelocationEntry &Rel) {
   Rel.print(OS);
   return OS;
 }
 #endif
 
 // Write X as an (unsigned) LEB value at offset Offset in Stream, padded
 // to allow patching.
-static void WritePatchableLEB(raw_pwrite_stream &Stream, uint32_t X,
+static void writePatchableLEB(raw_pwrite_stream &Stream, uint32_t X,
                               uint64_t Offset) {
   uint8_t Buffer[5];
   unsigned SizeLen = encodeULEB128(X, Buffer, 5);
   assert(SizeLen == 5);
   Stream.pwrite((char *)Buffer, SizeLen, Offset);
 }
 
 // Write X as an signed LEB value at offset Offset in Stream, padded
 // to allow patching.
-static void WritePatchableSLEB(raw_pwrite_stream &Stream, int32_t X,
+static void writePatchableSLEB(raw_pwrite_stream &Stream, int32_t X,
                                uint64_t Offset) {
   uint8_t Buffer[5];
   unsigned SizeLen = encodeSLEB128(X, Buffer, 5);
   assert(SizeLen == 5);
   Stream.pwrite((char *)Buffer, SizeLen, Offset);
 }
 
 // Write X as a plain integer value at offset Offset in Stream.
-static void WriteI32(raw_pwrite_stream &Stream, uint32_t X, uint64_t Offset) {
+static void writeI32(raw_pwrite_stream &Stream, uint32_t X, uint64_t Offset) {
   uint8_t Buffer[4];
   support::endian::write32le(Buffer, X);
   Stream.pwrite((char *)Buffer, sizeof(Buffer), Offset);
 }
 
 class WasmObjectWriter : public MCObjectWriter {
   support::endian::Writer W;
 
class WasmObjectWriter : public MCObjectWriter {
   void startCustomSection(SectionBookkeeping &Section, StringRef Name);
   void endSection(SectionBookkeeping &Section);
 
 public:
   WasmObjectWriter(std::unique_ptr<MCWasmObjectTargetWriter> MOTW,
                    raw_pwrite_stream &OS)
       : W(OS, support::little), TargetObjectWriter(std::move(MOTW)) {}
 
-  ~WasmObjectWriter() override;
-
 private:
   void reset() override {
     CodeRelocations.clear();
     DataRelocations.clear();
     TypeIndices.clear();
     WasmIndices.clear();
     TableIndices.clear();
     DataLocations.clear();
private:
   uint32_t getFunctionType(const MCSymbolWasm &Symbol);
   uint32_t getEventType(const MCSymbolWasm &Symbol);
   void registerFunctionType(const MCSymbolWasm &Symbol);
   void registerEventType(const MCSymbolWasm &Symbol);
 };
 
 } // end anonymous namespace
 
-WasmObjectWriter::~WasmObjectWriter() {}
-
 // Write out a section header and a patchable section size field.
 void WasmObjectWriter::startSection(SectionBookkeeping &Section,
                                     unsigned SectionId) {
   LLVM_DEBUG(dbgs() << "startSection " << SectionId << "\n");
   W.OS << char(SectionId);
 
   Section.SizeOffset = W.OS.tell();
 
void WasmObjectWriter::endSection(SectionBookkeeping &Section) {
   Size -= Section.PayloadOffset;
   if (uint32_t(Size) != Size)
     report_fatal_error("section size does not fit in a uint32_t");
 
   LLVM_DEBUG(dbgs() << "endSection size=" << Size << "\n");
 
   // Write the final section size to the payload_len field, which follows
   // the section id byte.
-  WritePatchableLEB(static_cast<raw_pwrite_stream &>(W.OS), Size,
+  writePatchableLEB(static_cast<raw_pwrite_stream &>(W.OS), Size,
                     Section.SizeOffset);
 }
 
 // Emit the Wasm header.
 void WasmObjectWriter::writeHeader(const MCAssembler &Asm) {
   W.OS.write(wasm::WasmMagic, sizeof(wasm::WasmMagic));
   W.write<uint32_t>(wasm::WasmVersion);
 }
if (FixupSection.isWasmData()) {
     CodeRelocations.push_back(Rec);
   } else if (FixupSection.getKind().isMetadata()) {
     CustomSectionsRelocations[&FixupSection].push_back(Rec);
   } else {
     llvm_unreachable("unexpected section type");
   }
 }
 
-static const MCSymbolWasm *ResolveSymbol(const MCSymbolWasm &Symbol) {
+static const MCSymbolWasm *resolveSymbol(const MCSymbolWasm &Symbol) {
   if (Symbol.isVariable()) {
     const MCExpr *Expr = Symbol.getVariableValue();
     auto *Inner = cast<MCSymbolRefExpr>(Expr);
     return cast<MCSymbolWasm>(&Inner->getSymbol());
   }
   return &Symbol;
 }
 
 // Compute a value to write into the code at the location covered
 // by RelEntry. This value isn't used by the static linker; it just serves
 // to make the object format more readable and more likely to be directly
 // useable.
 uint32_t
 WasmObjectWriter::getProvisionalValue(const WasmRelocationEntry &RelEntry) {
   switch (RelEntry.Type) {
   case wasm::R_WEBASSEMBLY_TABLE_INDEX_SLEB:
   case wasm::R_WEBASSEMBLY_TABLE_INDEX_I32: {
     // Provisional value is table address of the resolved symbol itself
-    const MCSymbolWasm *Sym = ResolveSymbol(*RelEntry.Symbol);
+    const MCSymbolWasm *Sym = resolveSymbol(*RelEntry.Symbol);
     assert(Sym->isFunction());
     return TableIndices[Sym];
   }
   case wasm::R_WEBASSEMBLY_TYPE_INDEX_LEB:
     // Provisional value is same as the index
     return getRelocationIndexValue(RelEntry);
   case wasm::R_WEBASSEMBLY_FUNCTION_INDEX_LEB:
   case wasm::R_WEBASSEMBLY_GLOBAL_INDEX_LEB:
   case wasm::R_WEBASSEMBLY_EVENT_INDEX_LEB:
     // Provisional value is function/global/event Wasm index
     if (!WasmIndices.count(RelEntry.Symbol))
       report_fatal_error("symbol not found in wasm index space: " +
                          RelEntry.Symbol->getName());
     return WasmIndices[RelEntry.Symbol];
   case wasm::R_WEBASSEMBLY_FUNCTION_OFFSET_I32:
   case wasm::R_WEBASSEMBLY_SECTION_OFFSET_I32: {
     const auto &Section =
         static_cast<const MCSectionWasm &>(RelEntry.Symbol->getSection());
     return Section.getSectionOffset() + RelEntry.Addend;
   }
   case wasm::R_WEBASSEMBLY_MEMORY_ADDR_LEB:
   case wasm::R_WEBASSEMBLY_MEMORY_ADDR_I32:
   case wasm::R_WEBASSEMBLY_MEMORY_ADDR_SLEB: {
     // Provisional value is address of the global
-    const MCSymbolWasm *Sym = ResolveSymbol(*RelEntry.Symbol);
+    const MCSymbolWasm *Sym = resolveSymbol(*RelEntry.Symbol);
     // For undefined symbols, use zero
     if (!Sym->isDefined())
       return 0;
     const wasm::WasmDataReference &Ref = DataLocations[Sym];
     const WasmDataSegment &Segment = DataSegments[Ref.Segment];
     // Ignore overflow. LLVM allows address arithmetic to silently wrap.
     return Segment.Offset + Ref.Offset + RelEntry.Addend;
   }
for (const WasmRelocationEntry &RelEntry : Relocations) {
     uint32_t Value = getProvisionalValue(RelEntry);
 
     switch (RelEntry.Type) {
     case wasm::R_WEBASSEMBLY_FUNCTION_INDEX_LEB:
     case wasm::R_WEBASSEMBLY_TYPE_INDEX_LEB:
     case wasm::R_WEBASSEMBLY_GLOBAL_INDEX_LEB:
     case wasm::R_WEBASSEMBLY_MEMORY_ADDR_LEB:
     case wasm::R_WEBASSEMBLY_EVENT_INDEX_LEB:
-      WritePatchableLEB(Stream, Value, Offset);
+      writePatchableLEB(Stream, Value, Offset);
       break;
     case wasm::R_WEBASSEMBLY_TABLE_INDEX_I32:
     case wasm::R_WEBASSEMBLY_MEMORY_ADDR_I32:
     case wasm::R_WEBASSEMBLY_FUNCTION_OFFSET_I32:
     case wasm::R_WEBASSEMBLY_SECTION_OFFSET_I32:
-      WriteI32(Stream, Value, Offset);
+      writeI32(Stream, Value, Offset);
       break;
     case wasm::R_WEBASSEMBLY_TABLE_INDEX_SLEB:
     case wasm::R_WEBASSEMBLY_MEMORY_ADDR_SLEB:
-      WritePatchableSLEB(Stream, Value, Offset);
+      writePatchableSLEB(Stream, Value, Offset);
       break;
     default:
       llvm_unreachable("invalid relocation type");
     }
   }
 }
 
 void WasmObjectWriter::writeTypeSection(ArrayRef<WasmSignature> Signatures) {
void WasmObjectWriter::writeElemSection(ArrayRef<uint32_t> TableElems) {
   SectionBookkeeping Section;
   startSection(Section, wasm::WASM_SEC_ELEM);
 
   encodeULEB128(1, W.OS); // number of "segments"
   encodeULEB128(0, W.OS); // the table index
 
   // init expr for starting offset
   W.OS << char(wasm::WASM_OPCODE_I32_CONST);
-  encodeSLEB128(kInitialTableOffset, W.OS);
+  encodeSLEB128(InitialTableOffset, W.OS);
   W.OS << char(wasm::WASM_OPCODE_END);
 
   encodeULEB128(TableElems.size(), W.OS);
   for (uint32_t Elem : TableElems)
     encodeULEB128(Elem, W.OS);
 
   endSection(Section);
 }
uint32_t WasmObjectWriter::getEventType(const MCSymbolWasm &Symbol) {
   assert(TypeIndices.count(&Symbol));
   return TypeIndices[&Symbol];
 }
 
 void WasmObjectWriter::registerFunctionType(const MCSymbolWasm &Symbol) {
   assert(Symbol.isFunction());
 
   WasmSignature S;
-  const MCSymbolWasm *ResolvedSym = ResolveSymbol(Symbol);
+  const MCSymbolWasm *ResolvedSym = resolveSymbol(Symbol);
   if (auto *Sig = ResolvedSym->getSignature()) {
     S.Returns = Sig->Returns;
     S.Params = Sig->Params;
   }
 
   auto Pair = SignatureIndices.insert(std::make_pair(S, Signatures.size()));
   if (Pair.second)
     Signatures.push_back(S);
uint64_t WasmObjectWriter::writeObject(MCAssembler &Asm,
   SmallVector<wasm::WasmSymbolInfo, 4> SymbolInfos;
   SmallVector<std::pair<uint16_t, uint32_t>, 2> InitFuncs;
   std::map<StringRef, std::vector<WasmComdatEntry>> Comdats;
   uint32_t DataSize = 0;
 
   // For now, always emit the memory import, since loads and stores are not
   // valid without it. In the future, we could perhaps be more clever and omit
   // it if there are no loads or stores.
-  MCSymbolWasm *MemorySym =
+  auto *MemorySym =
       cast<MCSymbolWasm>(Ctx.getOrCreateSymbol("__linear_memory"));
   wasm::WasmImport MemImport;
   MemImport.Module = MemorySym->getModuleName();
   MemImport.Field = MemorySym->getName();
   MemImport.Kind = wasm::WASM_EXTERNAL_MEMORY;
   Imports.push_back(MemImport);
 
   // For now, always emit the table section, since indirect calls are not
   // valid without it. In the future, we could perhaps be more clever and omit
   // it if there are no indirect calls.
-  MCSymbolWasm *TableSym =
+  auto *TableSym =
       cast<MCSymbolWasm>(Ctx.getOrCreateSymbol("__indirect_function_table"));
   wasm::WasmImport TableImport;
   TableImport.Module = TableSym->getModuleName();
   TableImport.Field = TableSym->getName();
   TableImport.Kind = wasm::WASM_EXTERNAL_TABLE;
   TableImport.Table.ElemType = wasm::WASM_TYPE_FUNCREF;
   Imports.push_back(TableImport);
 
for (const MCSymbol &S : Asm.symbols()) {
 
     if (WS.isFunction()) {
       unsigned Index;
       if (WS.isDefined()) {
         if (WS.getOffset() != 0)
           report_fatal_error(
               "function sections must contain one function each");
 
-        if (WS.getSize() == 0)
+        if (WS.getSize() == nullptr)
           report_fatal_error(
               "function symbols must have a size set with .size");
 
         // A definition. Write out the function body.
         Index = NumFunctionImports + Functions.size();
         WasmFunction Func;
         Func.SigIndex = getFunctionType(WS);
         Func.Sym = &WS;
uint64_t WasmObjectWriter::writeObject(MCAssembler &Asm,
   for (const MCSymbol &S : Asm.symbols()) {
     if (!S.isVariable())
       continue;
 
     assert(S.isDefined());
 
     // Find the target symbol of this weak alias and export that index
     const auto &WS = static_cast<const MCSymbolWasm &>(S);
-    const MCSymbolWasm *ResolvedSym = ResolveSymbol(WS);
+    const MCSymbolWasm *ResolvedSym = resolveSymbol(WS);
     LLVM_DEBUG(dbgs() << WS.getName() << ": weak alias of '" << *ResolvedSym
                       << "'\n");
 
     if (WS.isFunction()) {
       assert(WasmIndices.count(ResolvedSym) > 0);
       uint32_t WasmIndex = WasmIndices.find(ResolvedSym)->second;
       WasmIndices[&WS] = WasmIndex;
       LLVM_DEBUG(dbgs() << "  -> index:" << WasmIndex << "\n");
     } else if (WS.isData()) {
       assert(DataLocations.count(ResolvedSym) > 0);
       const wasm::WasmDataReference &Ref =
           DataLocations.find(ResolvedSym)->second;
       DataLocations[&WS] = Ref;
       LLVM_DEBUG(dbgs() << "  -> index:" << Ref.Segment << "\n");
     } else {
       report_fatal_error("don't yet support global/event aliases");
     }
   }
 
   // Finally, populate the symbol table itself, in its "natural" order.
   for (const MCSymbol &S : Asm.symbols()) {
     const auto &WS = static_cast<const MCSymbolWasm &>(S);
     if (!isInSymtab(WS)) {
-      WS.setIndex(INVALID_INDEX);
+      WS.setIndex(InvalidIndex);
       continue;
     }
     LLVM_DEBUG(dbgs() << "adding to symtab: " << WS << "\n");
 
     uint32_t Flags = 0;
     if (WS.isWeak())
       Flags |= wasm::WASM_SYMBOL_BINDING_WEAK;
     if (WS.isHidden())
for (const MCSymbol &S : Asm.symbols()) {
     auto HandleReloc = [&](const WasmRelocationEntry &Rel) {
       // Functions referenced by a relocation need to put in the table.  This is
       // purely to make the object file's provisional values readable, and is
       // ignored by the linker, which re-calculates the relocations itself.
       if (Rel.Type != wasm::R_WEBASSEMBLY_TABLE_INDEX_I32 &&
           Rel.Type != wasm::R_WEBASSEMBLY_TABLE_INDEX_SLEB)
         return;
       assert(Rel.Symbol->isFunction());
-      const MCSymbolWasm &WS = *ResolveSymbol(*Rel.Symbol);
+      const MCSymbolWasm &WS = *resolveSymbol(*Rel.Symbol);
       uint32_t FunctionIndex = WasmIndices.find(&WS)->second;
-      uint32_t TableIndex = TableElems.size() + kInitialTableOffset;
+      uint32_t TableIndex = TableElems.size() + InitialTableOffset;
       if (TableIndices.try_emplace(&WS, TableIndex).second) {
         LLVM_DEBUG(dbgs() << "  -> adding " << WS.getName()
                           << " to table: " << TableIndex << "\n");
         TableElems.push_back(FunctionIndex);
         registerFunctionType(WS);
       }
     };
 
if (WS.getSectionName().size() > PrefixLength) {
       if (WS.getSectionName()
               .substr(PrefixLength + 1)
               .getAsInteger(10, Priority))
         report_fatal_error("invalid .init_array section priority");
     }
     const auto &DataFrag = cast<MCDataFragment>(Frag);
     const SmallVectorImpl<char> &Contents = DataFrag.getContents();
     for (const uint8_t *
-             p = (const uint8_t *)Contents.data(),
-            *end = (const uint8_t *)Contents.data() + Contents.size();
-         p != end; ++p) {
-      if (*p != 0)
+             P = (const uint8_t *)Contents.data(),
+            *End = (const uint8_t *)Contents.data() + Contents.size();
+         P != End; ++P) {
+      if (*P != 0)
         report_fatal_error("non-symbolic data in .init_array section");
     }
     for (const MCFixup &Fixup : DataFrag.getFixups()) {
       assert(Fixup.getKind() ==
              MCFixup::getKindForSize(is64Bit() ? 8 : 4, false));
       const MCExpr *Expr = Fixup.getValue();
       auto *Sym = dyn_cast<MCSymbolRefExpr>(Expr);
       if (!Sym)
         report_fatal_error("fixups in .init_array should be symbol references");
       if (Sym->getKind() != MCSymbolRefExpr::VK_WebAssembly_FUNCTION)
         report_fatal_error("symbols in .init_array should be for functions");
-      if (Sym->getSymbol().getIndex() == INVALID_INDEX)
+      if (Sym->getSymbol().getIndex() == InvalidIndex)
         report_fatal_error("symbols in .init_array should exist in symbtab");
       InitFuncs.push_back(
           std::make_pair(Priority, Sym->getSymbol().getIndex()));
     }
   }
 
   // Write out the Wasm header.
   writeHeader(Asm);

lib/Object/WasmObjectFile.cpp

static int64_t readLEB128(WasmObjectFile::ReadContext &Ctx) {
   uint64_t Result = decodeSLEB128(Ctx.Ptr, &Count, Ctx.End, &Error);
   if (Error)
     report_fatal_error(Error);
   Ctx.Ptr += Count;
   return Result;
 }
 
 static uint8_t readVaruint1(WasmObjectFile::ReadContext &Ctx) {
-  int64_t result = readLEB128(Ctx);
-  if (result > VARUINT1_MAX || result < 0)
+  int64_t Result = readLEB128(Ctx);
+  if (Result > VARUINT1_MAX || Result < 0)
     report_fatal_error("LEB is outside Varuint1 range");
-  return result;
+  return Result;
 }
 
 static int32_t readVarint32(WasmObjectFile::ReadContext &Ctx) {
-  int64_t result = readLEB128(Ctx);
-  if (result > INT32_MAX || result < INT32_MIN)
+  int64_t Result = readLEB128(Ctx);
+  if (Result > INT32_MAX || Result < INT32_MIN)
     report_fatal_error("LEB is outside Varint32 range");
-  return result;
+  return Result;
 }
 
 static uint32_t readVaruint32(WasmObjectFile::ReadContext &Ctx) {
-  uint64_t result = readULEB128(Ctx);
-  if (result > UINT32_MAX)
+  uint64_t Result = readULEB128(Ctx);
+  if (Result > UINT32_MAX)
     report_fatal_error("LEB is outside Varuint32 range");
-  return result;
+  return Result;
 }
 
 static int64_t readVarint64(WasmObjectFile::ReadContext &Ctx) {
   return readLEB128(Ctx);
 }
 
 static uint8_t readOpcode(WasmObjectFile::ReadContext &Ctx) {
   return readUint8(Ctx);
case wasm::WASM_SYMBOL_TABLE:
       if (Error Err = parseLinkingSectionSymtab(Ctx))
         return Err;
       break;
     case wasm::WASM_SEGMENT_INFO: {
       uint32_t Count = readVaruint32(Ctx);
       if (Count > DataSegments.size())
         return make_error<GenericBinaryError>("Too many segment names",
                                               object_error::parse_failed);
-      for (uint32_t i = 0; i < Count; i++) {
-        DataSegments[i].Data.Name = readString(Ctx);
-        DataSegments[i].Data.Alignment = readVaruint32(Ctx);
-        DataSegments[i].Data.Flags = readVaruint32(Ctx);
+      for (uint32_t I = 0; I < Count; I++) {
+        DataSegments[I].Data.Name = readString(Ctx);
+        DataSegments[I].Data.Alignment = readVaruint32(Ctx);
+        DataSegments[I].Data.Flags = readVaruint32(Ctx);
       }
       break;
     }
     case wasm::WASM_INIT_FUNCS: {
       uint32_t Count = readVaruint32(Ctx);
       LinkingData.InitFunctions.reserve(Count);
-      for (uint32_t i = 0; i < Count; i++) {
+      for (uint32_t I = 0; I < Count; I++) {
         wasm::WasmInitFunc Init;
         Init.Priority = readVaruint32(Ctx);
         Init.Symbol = readVaruint32(Ctx);
         if (!isValidFunctionSymbol(Init.Symbol))
           return make_error<GenericBinaryError>("Invalid function symbol: " +
                                                     Twine(Init.Symbol),
                                                 object_error::parse_failed);
         LinkingData.InitFunctions.emplace_back(Init);
for (unsigned ComdatIndex = 0; ComdatIndex < ComdatCount; ++ComdatIndex) {
     }
   }
   return Error::success();
 }
 
 Error WasmObjectFile::parseProducersSection(ReadContext &Ctx) {
   llvm::SmallSet<StringRef, 3> FieldsSeen;
   uint32_t Fields = readVaruint32(Ctx);
-  for (size_t i = 0; i < Fields; ++i) {
+  for (size_t I = 0; I < Fields; ++I) {
     StringRef FieldName = readString(Ctx);
     if (!FieldsSeen.insert(FieldName).second)
       return make_error<GenericBinaryError>(
           "Producers section does not have unique fields",
           object_error::parse_failed);
     std::vector<std::pair<std::string, std::string>> *ProducerVec = nullptr;
     if (FieldName == "language") {
       ProducerVec = &ProducerInfo.Languages;
     } else if (FieldName == "processed-by") {
       ProducerVec = &ProducerInfo.Tools;
     } else if (FieldName == "sdk") {
       ProducerVec = &ProducerInfo.SDKs;
     } else {
       return make_error<GenericBinaryError>(
           "Producers section field is not named one of language, processed-by, "
           "or sdk",
           object_error::parse_failed);
     }
     uint32_t ValueCount = readVaruint32(Ctx);
     llvm::SmallSet<StringRef, 8> ProducersSeen;
-    for (size_t j = 0; j < ValueCount; ++j) {
+    for (size_t J = 0; J < ValueCount; ++J) {
       StringRef Name = readString(Ctx);
       StringRef Version = readString(Ctx);
       if (!ProducersSeen.insert(Name).second) {
         return make_error<GenericBinaryError>(
             "Producers section contains repeated producer",
             object_error::parse_failed);
       }
       ProducerVec->emplace_back(Name, Version);
if (Ctx.Ptr != Ctx.End)
     return make_error<GenericBinaryError>("Type section ended prematurely",
                                           object_error::parse_failed);
   return Error::success();
 }
 
 Error WasmObjectFile::parseImportSection(ReadContext &Ctx) {
   uint32_t Count = readVaruint32(Ctx);
   Imports.reserve(Count);
-  for (uint32_t i = 0; i < Count; i++) {
+  for (uint32_t I = 0; I < Count; I++) {
     wasm::WasmImport Im;
     Im.Module = readString(Ctx);
     Im.Field = readString(Ctx);
     Im.Kind = readUint8(Ctx);
     switch (Im.Kind) {
     case wasm::WASM_EXTERNAL_FUNCTION:
       NumImportedFunctions++;
       Im.SigIndex = readVaruint32(Ctx);
if (Ctx.Ptr != Ctx.End)
     return make_error<GenericBinaryError>("Event section ended prematurely",
                                           object_error::parse_failed);
   return Error::success();
 }
 
 Error WasmObjectFile::parseExportSection(ReadContext &Ctx) {
   uint32_t Count = readVaruint32(Ctx);
   Exports.reserve(Count);
-  for (uint32_t i = 0; i < Count; i++) {
+  for (uint32_t I = 0; I < Count; I++) {
     wasm::WasmExport Ex;
     Ex.Name = readString(Ctx);
     Ex.Kind = readUint8(Ctx);
     Ex.Index = readVaruint32(Ctx);
     switch (Ex.Kind) {
     case wasm::WASM_EXTERNAL_FUNCTION:
       if (!isValidFunctionIndex(Ex.Index))
         return make_error<GenericBinaryError>("Invalid function export",
switch (S.Type) {
     ECase(DATA);
   case wasm::WASM_SEC_CUSTOM:
     Res = S.Name;
     break;
   default:
     return object_error::invalid_section_index;
   }
 #undef ECase
   return std::error_code();
 }
 
 uint64_t WasmObjectFile::getSectionAddress(DataRefImpl Sec) const { return 0; }
 
 uint64_t WasmObjectFile::getSectionIndex(DataRefImpl Sec) const {
   return Sec.d.a;
 }
 
 uint64_t WasmObjectFile::getSectionSize(DataRefImpl Sec) const {
   const WasmSection &S = Sections[Sec.d.a];
   return S.Content.size();
 }
 
 std::error_code WasmObjectFile::getSectionContents(DataRefImpl Sec,
                                                    StringRef &Res) const {
   const WasmSection &S = Sections[Sec.d.a];
   // This will never fail since wasm sections can never be empty (user-sections
   // must have a name and non-user sections each have a defined structure).
   Res = StringRef(reinterpret_cast<const char *>(S.Content.data()),
                   S.Content.size());
   return std::error_code();
 }
 
 uint64_t WasmObjectFile::getSectionAlignment(DataRefImpl Sec) const {
   return 1;
 }
 
 bool WasmObjectFile::isSectionCompressed(DataRefImpl Sec) const {
   return false;

 bool WasmObjectFile::isSectionVirtual(DataRefImpl Sec) const { return false; }
 
 bool WasmObjectFile::isSectionBitcode(DataRefImpl Sec) const { return false; }
 
 relocation_iterator WasmObjectFile::section_rel_begin(DataRefImpl Ref) const {
   DataRefImpl RelocRef;
   RelocRef.d.a = Ref.d.a;
   RelocRef.d.b = 0;
-  return relocation_iterator(RelocationRef(RelocRef, this));
+  return RelocationRef(RelocRef, this);
 }
 
 relocation_iterator WasmObjectFile::section_rel_end(DataRefImpl Ref) const {
   const WasmSection &Sec = getWasmSection(Ref);
   DataRefImpl RelocRef;
   RelocRef.d.a = Ref.d.a;
   RelocRef.d.b = Sec.Relocations.size();
-  return relocation_iterator(RelocationRef(RelocRef, this));
+  return RelocationRef(RelocRef, this);
 }
 
 void WasmObjectFile::moveRelocationNext(DataRefImpl &Rel) const { Rel.d.b++; }
 
 uint64_t WasmObjectFile::getRelocationOffset(DataRefImpl Ref) const {
   const wasm::WasmRelocation &Rel = getWasmRelocation(Ref);
   return Rel.Offset;
 }
 
 symbol_iterator WasmObjectFile::getRelocationSymbol(DataRefImpl Ref) const {
   const wasm::WasmRelocation &Rel = getWasmRelocation(Ref);
   if (Rel.Type == wasm::R_WEBASSEMBLY_TYPE_INDEX_LEB)
     return symbol_end();
   DataRefImpl Sym;
   Sym.d.a = 1;
   Sym.d.b = Rel.Index;
-  return symbol_iterator(SymbolRef(Sym, this));
+  return SymbolRef(Sym, this);
 }
 
 uint64_t WasmObjectFile::getRelocationType(DataRefImpl Ref) const {
   const wasm::WasmRelocation &Rel = getWasmRelocation(Ref);
   return Rel.Type;
 }
 
 void WasmObjectFile::getRelocationTypeName(

 #undef WASM_RELOC
 
   Result.append(Res.begin(), Res.end());
 }
 
 section_iterator WasmObjectFile::section_begin() const {
   DataRefImpl Ref;
   Ref.d.a = 0;
-  return section_iterator(SectionRef(Ref, this));
+  return SectionRef(Ref, this);
 }
 
 section_iterator WasmObjectFile::section_end() const {
   DataRefImpl Ref;
   Ref.d.a = Sections.size();
-  return section_iterator(SectionRef(Ref, this));
+  return SectionRef(Ref, this);
 }
 
 uint8_t WasmObjectFile::getBytesInAddress() const { return 4; }
 
 StringRef WasmObjectFile::getFileFormatName() const { return "WASM"; }
 
 Triple::ArchType WasmObjectFile::getArch() const { return Triple::wasm32; }
 

lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp

WebAssemblyOperand(KindTy K, SMLoc Start, SMLoc End, IntOp I)
       : Kind(K), StartLoc(Start), EndLoc(End), Int(I) {}
   WebAssemblyOperand(KindTy K, SMLoc Start, SMLoc End, FltOp F)
       : Kind(K), StartLoc(Start), EndLoc(End), Flt(F) {}
   WebAssemblyOperand(KindTy K, SMLoc Start, SMLoc End, SymOp S)
       : Kind(K), StartLoc(Start), EndLoc(End), Sym(S) {}
   WebAssemblyOperand(KindTy K, SMLoc Start, SMLoc End)
       : Kind(K), StartLoc(Start), EndLoc(End), BrL() {}
 
   ~WebAssemblyOperand() {
     if (isBrList())
       BrL.~BrLOp();
   }
 
   bool isToken() const override { return Kind == Token; }
   bool isImm() const override {
     return Kind == Integer || Kind == Float || Kind == Symbol;
   }
bool pop(StringRef Ins, NestingType NT1, NestingType NT2 = Undefined) {
     if (Top != NT1 && Top != NT2)
       return error(Twine("Block construct type mismatch, expected: ") +
                    nestingString(Top).second + ", instead got: " + Ins);
     NestingStack.pop_back();
     return false;
   }
 
   bool ensureEmptyNestingStack() {
-    auto err = !NestingStack.empty();
+    auto Err = !NestingStack.empty();
     while (!NestingStack.empty()) {
       error(Twine("Unmatched block construct(s) at function end: ") +
             nestingString(NestingStack.back()).first);
       NestingStack.pop_back();
     }
-    return err;
+    return Err;
   }
 
   bool isNext(AsmToken::TokenKind Kind) {
     auto Ok = Lexer.is(Kind);
     if (Ok)
       Parser.Lex();
     return Ok;
   }
 
   bool expect(AsmToken::TokenKind Kind, const char *KindName) {
     if (!isNext(Kind))
       return error(std::string("Expected ") + KindName + ", instead got: ",
                    Lexer.getTok());
     return false;
   }
 
   StringRef expectIdent() {
     if (!Lexer.is(AsmToken::Identifier)) {
       error("Expected identifier, got: ", Lexer.getTok());
       return StringRef();
     }
     auto Name = Lexer.getTok().getString();
     Parser.Lex();
     return Name;
   }
 
   Optional<wasm::ValType> parseType(const StringRef &Type) {
     // FIXME: can't use StringSwitch because wasm::ValType doesn't have a

lib/Target/WebAssembly/InstPrinter/WebAssemblyInstPrinter.cpp

void WebAssemblyInstPrinter::printInst(const MCInst *MI, raw_ostream &OS,
                                        StringRef Annot,
                                        const MCSubtargetInfo &STI) {
   // Print the instruction (this uses the AsmStrings from the .td files).
   printInstruction(MI, OS);
 
   // Print any additional variadic operands.
   const MCInstrDesc &Desc = MII.get(MI->getOpcode());
   if (Desc.isVariadic())
-    for (auto i = Desc.getNumOperands(), e = MI->getNumOperands(); i < e; ++i) {
+    for (auto I = Desc.getNumOperands(), E = MI->getNumOperands(); I < E; ++I) {
       // FIXME: For CALL_INDIRECT_VOID, don't print a leading comma, because
       // we have an extra flags operand which is not currently printed, for
       // compatiblity reasons.
-      if (i != 0 && ((MI->getOpcode() != WebAssembly::CALL_INDIRECT_VOID &&
+      if (I != 0 && ((MI->getOpcode() != WebAssembly::CALL_INDIRECT_VOID &&
                       MI->getOpcode() != WebAssembly::CALL_INDIRECT_VOID_S) ||
-                     i != Desc.getNumOperands()))
+                     I != Desc.getNumOperands()))
         OS << ", ";
-      printOperand(MI, i, OS);
+      printOperand(MI, I, OS);
     }
 
   // Print any added annotation.
   printAnnotation(OS, Annot);
 
   if (CommentStream) {
     // Observe any effects on the control flow stack, for use in annotating
     // control flow label references.
return std::string(AI.isNegative() ? "-" : "") + "nan:0x" +
            utohexstr(AI.getZExtValue() &
                          (AI.getBitWidth() == 32 ? INT64_C(0x007fffff)
                                                  : INT64_C(0x000fffffffffffff)),
                      /*LowerCase=*/true);
   }
 
   // Use C99's hexadecimal floating-point representation.
   static const size_t BufBytes = 128;
-  char buf[BufBytes];
+  char Buf[BufBytes];
   auto Written = FP.convertToHexString(
-      buf, /*hexDigits=*/0, /*upperCase=*/false, APFloat::rmNearestTiesToEven);
+      Buf, /*hexDigits=*/0, /*upperCase=*/false, APFloat::rmNearestTiesToEven);
   (void)Written;
   assert(Written != 0);
   assert(Written < BufBytes);
-  return buf;
+  return Buf;
 }
 
 void WebAssemblyInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
                                           raw_ostream &O) {
   const MCOperand &Op = MI->getOperand(OpNo);
   if (Op.isReg()) {
     unsigned WAReg = Op.getReg();
     if (int(WAReg) >= 0)

lib/Target/WebAssembly/MCTargetDesc/WebAssemblyAsmBackend.cpp

 
 namespace {
 
 class WebAssemblyAsmBackend final : public MCAsmBackend {
   bool Is64Bit;
 
 public:
   explicit WebAssemblyAsmBackend(bool Is64Bit)
       : MCAsmBackend(support::little), Is64Bit(Is64Bit) {}
-  ~WebAssemblyAsmBackend() override {}
 
   unsigned getNumFixupKinds() const override {
     return WebAssembly::NumTargetFixupKinds;
   }
 
   const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const override;
 
   void applyFixup(const MCAssembler &Asm, const MCFixup &Fixup,
                   const MCValue &Target, MutableArrayRef<char> Data,
WebAssemblyAsmBackend::getFixupKindInfo(MCFixupKind Kind) const {
 
   assert(unsigned(Kind - FirstTargetFixupKind) < getNumFixupKinds() &&
          "Invalid kind!");
   return Infos[Kind - FirstTargetFixupKind];
 }
 
 bool WebAssemblyAsmBackend::writeNopData(raw_ostream &OS,
                                          uint64_t Count) const {
-  for (uint64_t i = 0; i < Count; ++i)
+  for (uint64_t I = 0; I < Count; ++I)
     OS << char(WebAssembly::Nop);
 
   return true;
 }
 
 void WebAssemblyAsmBackend::applyFixup(const MCAssembler &Asm,
                                        const MCFixup &Fixup,
                                        const MCValue &Target,
void WebAssemblyAsmBackend::applyFixup(const MCAssembler &Asm,
   // Shift the value into position.
   Value <<= Info.TargetOffset;
 
   unsigned Offset = Fixup.getOffset();
   assert(Offset + NumBytes <= Data.size() && "Invalid fixup offset!");
 
   // For each byte of the fragment that the fixup touches, mask in the
   // bits from the fixup value.
-  for (unsigned i = 0; i != NumBytes; ++i)
-    Data[Offset + i] |= uint8_t((Value >> (i * 8)) & 0xff);
+  for (unsigned I = 0; I != NumBytes; ++I)
+    Data[Offset + I] |= uint8_t((Value >> (I * 8)) & 0xff);
 }
 
 std::unique_ptr<MCObjectTargetWriter>
 WebAssemblyAsmBackend::createObjectTargetWriter() const {
   return createWebAssemblyWasmObjectWriter(Is64Bit);
 }
 
 } // end anonymous namespace
 
 MCAsmBackend *llvm::createWebAssemblyAsmBackend(const Triple &TT) {
   return new WebAssemblyAsmBackend(TT.isArch64Bit());
 }

lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCAsmInfo.cpp

 
 #include "WebAssemblyMCAsmInfo.h"
 #include "llvm/ADT/Triple.h"
 
 using namespace llvm;
 
 #define DEBUG_TYPE "wasm-mc-asm-info"
 
-WebAssemblyMCAsmInfo::~WebAssemblyMCAsmInfo() {}
+WebAssemblyMCAsmInfo::~WebAssemblyMCAsmInfo() = default; // anchor.
 
 WebAssemblyMCAsmInfo::WebAssemblyMCAsmInfo(const Triple &T) {
   CodePointerSize = CalleeSaveStackSlotSize = T.isArch64Bit() ? 8 : 4;
 
   // TODO: What should MaxInstLength be?
 
   UseDataRegionDirectives = true;
 

lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp

uint64_t getBinaryCodeForInstr(const MCInst &MI,
                                  SmallVectorImpl<MCFixup> &Fixups,
                                  const MCSubtargetInfo &STI) const;
 
   void encodeInstruction(const MCInst &MI, raw_ostream &OS,
                          SmallVectorImpl<MCFixup> &Fixups,
                          const MCSubtargetInfo &STI) const override;
 
 public:
-  WebAssemblyMCCodeEmitter(const MCInstrInfo &mcii) : MCII(mcii) {}
+  WebAssemblyMCCodeEmitter(const MCInstrInfo &MCII) : MCII(MCII) {}
 };
 } // end anonymous namespace
 
 MCCodeEmitter *llvm::createWebAssemblyMCCodeEmitter(const MCInstrInfo &MCII) {
   return new WebAssemblyMCCodeEmitter(MCII);
 }
 
 void WebAssemblyMCCodeEmitter::encodeInstruction(
void WebAssemblyMCCodeEmitter::encodeInstruction(
   if (MI.getOpcode() == WebAssembly::BR_TABLE_I32_S ||
       MI.getOpcode() == WebAssembly::BR_TABLE_I64_S)
     encodeULEB128(MI.getNumOperands() - 1, OS);
   if (MI.getOpcode() == WebAssembly::BR_TABLE_I32 ||
       MI.getOpcode() == WebAssembly::BR_TABLE_I64)
     encodeULEB128(MI.getNumOperands() - 2, OS);
 
   const MCInstrDesc &Desc = MCII.get(MI.getOpcode());
-  for (unsigned i = 0, e = MI.getNumOperands(); i < e; ++i) {
-    const MCOperand &MO = MI.getOperand(i);
+  for (unsigned I = 0, E = MI.getNumOperands(); I < E; ++I) {
+    const MCOperand &MO = MI.getOperand(I);
     if (MO.isReg()) {
       /* nothing to encode */
 
     } else if (MO.isImm()) {
-      if (i < Desc.getNumOperands()) {
-        const MCOperandInfo &Info = Desc.OpInfo[i];
+      if (I < Desc.getNumOperands()) {
+        const MCOperandInfo &Info = Desc.OpInfo[I];
         LLVM_DEBUG(dbgs() << "Encoding immediate: type="
                           << int(Info.OperandType) << "\n");
         switch (Info.OperandType) {
         case WebAssembly::OPERAND_I32IMM:
           encodeSLEB128(int32_t(MO.getImm()), OS);
           break;
         case WebAssembly::OPERAND_OFFSET32:
           encodeULEB128(uint32_t(MO.getImm()), OS);
if (MO.isReg()) {
         default:
           encodeULEB128(uint64_t(MO.getImm()), OS);
         }
       } else {
         encodeULEB128(uint64_t(MO.getImm()), OS);
       }
 
     } else if (MO.isFPImm()) {
-      const MCOperandInfo &Info = Desc.OpInfo[i];
+      const MCOperandInfo &Info = Desc.OpInfo[I];
       if (Info.OperandType == WebAssembly::OPERAND_F32IMM) {
         // TODO: MC converts all floating point immediate operands to double.
         // This is fine for numeric values, but may cause NaNs to change bits.
-        float f = float(MO.getFPImm());
-        support::endian::write<float>(OS, f, support::little);
+        auto F = float(MO.getFPImm());
+        support::endian::write<float>(OS, F, support::little);
       } else {
         assert(Info.OperandType == WebAssembly::OPERAND_F64IMM);
-        double d = MO.getFPImm();
-        support::endian::write<double>(OS, d, support::little);
+        double D = MO.getFPImm();
+        support::endian::write<double>(OS, D, support::little);
       }
 
     } else if (MO.isExpr()) {
-      const MCOperandInfo &Info = Desc.OpInfo[i];
+      const MCOperandInfo &Info = Desc.OpInfo[I];
       llvm::MCFixupKind FixupKind;
       size_t PaddedSize = 5;
       switch (Info.OperandType) {
       case WebAssembly::OPERAND_I32IMM:
         FixupKind = MCFixupKind(WebAssembly::fixup_code_sleb128_i32);
         break;
       case WebAssembly::OPERAND_I64IMM:
         FixupKind = MCFixupKind(WebAssembly::fixup_code_sleb128_i64);

lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.cpp

 #include "WebAssemblyGenRegisterInfo.inc"
 
 static MCAsmInfo *createMCAsmInfo(const MCRegisterInfo & /*MRI*/,
                                   const Triple &TT) {
   return new WebAssemblyMCAsmInfo(TT);
 }
 
 static MCInstrInfo *createMCInstrInfo() {
-  MCInstrInfo *X = new MCInstrInfo();
+  auto *X = new MCInstrInfo();
   InitWebAssemblyMCInstrInfo(X);
   return X;
 }
 
 static MCRegisterInfo *createMCRegisterInfo(const Triple & /*T*/) {
-  MCRegisterInfo *X = new MCRegisterInfo();
+  auto *X = new MCRegisterInfo();
   InitWebAssemblyMCRegisterInfo(X, 0);
   return X;
 }
 
 static MCInstPrinter *createMCInstPrinter(const Triple & /*T*/,
                                           unsigned SyntaxVariant,
                                           const MCAsmInfo &MAI,
                                           const MCInstrInfo &MII,

lib/Target/WebAssembly/MCTargetDesc/WebAssemblyWasmObjectWriter.cpp

unsigned getRelocType(const MCValue &Target,
                         const MCFixup &Fixup) const override;
 };
 } // end anonymous namespace
 
 WebAssemblyWasmObjectWriter::WebAssemblyWasmObjectWriter(bool Is64Bit)
     : MCWasmObjectTargetWriter(Is64Bit) {}
 
 // Test whether the given expression computes a function address.
-static bool IsFunctionExpr(const MCExpr *Expr) {
+static bool isFunctionExpr(const MCExpr *Expr) {
   if (auto SyExp = dyn_cast<MCSymbolRefExpr>(Expr))
     return cast<MCSymbolWasm>(SyExp->getSymbol()).isFunction();
 
   if (auto BinOp = dyn_cast<MCBinaryExpr>(Expr))
-    return IsFunctionExpr(BinOp->getLHS()) != IsFunctionExpr(BinOp->getRHS());
+    return isFunctionExpr(BinOp->getLHS()) != isFunctionExpr(BinOp->getRHS());
 
   if (auto UnOp = dyn_cast<MCUnaryExpr>(Expr))
-    return IsFunctionExpr(UnOp->getSubExpr());
+    return isFunctionExpr(UnOp->getSubExpr());
 
   return false;
 }
 
-static bool IsFunctionType(const MCValue &Target) {
+static bool isFunctionType(const MCValue &Target) {
   const MCSymbolRefExpr *RefA = Target.getSymA();
   return RefA && RefA->getKind() == MCSymbolRefExpr::VK_WebAssembly_TYPEINDEX;
 }
 
-static const MCSection *GetFixupSection(const MCExpr *Expr) {
+static const MCSection *getFixupSection(const MCExpr *Expr) {
   if (auto SyExp = dyn_cast<MCSymbolRefExpr>(Expr)) {
     if (SyExp->getSymbol().isInSection())
       return &SyExp->getSymbol().getSection();
     return nullptr;
   }
 
   if (auto BinOp = dyn_cast<MCBinaryExpr>(Expr)) {
-    auto SectionLHS = GetFixupSection(BinOp->getLHS());
-    auto SectionRHS = GetFixupSection(BinOp->getRHS());
+    auto SectionLHS = getFixupSection(BinOp->getLHS());
+    auto SectionRHS = getFixupSection(BinOp->getRHS());
     return SectionLHS == SectionRHS ? nullptr : SectionLHS;
   }
 
   if (auto UnOp = dyn_cast<MCUnaryExpr>(Expr))
-    return GetFixupSection(UnOp->getSubExpr());
+    return getFixupSection(UnOp->getSubExpr());
 
   return nullptr;
 }
 
-static bool IsGlobalType(const MCValue &Target) {
+static bool isGlobalType(const MCValue &Target) {
   const MCSymbolRefExpr *RefA = Target.getSymA();
   return RefA && RefA->getKind() == MCSymbolRefExpr::VK_WebAssembly_GLOBAL;
 }
 
-static bool IsEventType(const MCValue &Target) {
+static bool isEventType(const MCValue &Target) {
   const MCSymbolRefExpr *RefA = Target.getSymA();
   return RefA && RefA->getKind() == MCSymbolRefExpr::VK_WebAssembly_EVENT;
 }
 
 unsigned WebAssemblyWasmObjectWriter::getRelocType(const MCValue &Target,
                                                    const MCFixup &Fixup) const {
   // WebAssembly functions are not allocated in the data address space. To
   // resolve a pointer to a function, we must use a special relocation type.
-  bool IsFunction = IsFunctionExpr(Fixup.getValue());
+  bool IsFunction = isFunctionExpr(Fixup.getValue());
 
   switch (unsigned(Fixup.getKind())) {
   case WebAssembly::fixup_code_sleb128_i32:
     if (IsFunction)
       return wasm::R_WEBASSEMBLY_TABLE_INDEX_SLEB;
     return wasm::R_WEBASSEMBLY_MEMORY_ADDR_SLEB;
   case WebAssembly::fixup_code_sleb128_i64:
     llvm_unreachable("fixup_sleb128_i64 not implemented yet");
   case WebAssembly::fixup_code_uleb128_i32:
-    if (IsGlobalType(Target))
+    if (isGlobalType(Target))
       return wasm::R_WEBASSEMBLY_GLOBAL_INDEX_LEB;
-    if (IsFunctionType(Target))
+    if (isFunctionType(Target))
       return wasm::R_WEBASSEMBLY_TYPE_INDEX_LEB;
     if (IsFunction)
       return wasm::R_WEBASSEMBLY_FUNCTION_INDEX_LEB;
-    if (IsEventType(Target))
+    if (isEventType(Target))
       return wasm::R_WEBASSEMBLY_EVENT_INDEX_LEB;
     return wasm::R_WEBASSEMBLY_MEMORY_ADDR_LEB;
   case FK_Data_4:
     if (IsFunction)
       return wasm::R_WEBASSEMBLY_TABLE_INDEX_I32;
     if (auto Section = static_cast<const MCSectionWasm *>(
-            GetFixupSection(Fixup.getValue()))) {
+            getFixupSection(Fixup.getValue()))) {
       if (Section->getKind().isText())
         return wasm::R_WEBASSEMBLY_FUNCTION_OFFSET_I32;
       else if (!Section->isWasmData())
         return wasm::R_WEBASSEMBLY_SECTION_OFFSET_I32;
     }
     return wasm::R_WEBASSEMBLY_MEMORY_ADDR_I32;
   case FK_Data_8:
     llvm_unreachable("FK_Data_8 not implemented yet");

lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp

else if (Sym->getType() == wasm::WASM_SYMBOL_TYPE_EVENT)
       getTargetStreamer()->emitEventType(Sym);
   }
 
   for (const auto &F : M) {
     // Emit function type info for all undefined functions
     if (F.isDeclarationForLinker() && !F.isIntrinsic()) {
       SmallVector<MVT, 4> Results;
       SmallVector<MVT, 4> Params;
-      ComputeSignatureVTs(F.getFunctionType(), F, TM, Params, Results);
+      computeSignatureVTs(F.getFunctionType(), F, TM, Params, Results);
       auto *Sym = cast<MCSymbolWasm>(getSymbol(&F));
       Sym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
       if (!Sym->getSignature()) {
-        auto Signature = SignatureFromMVTs(Results, Params);
+        auto Signature = signatureFromMVTs(Results, Params);
         Sym->setSignature(Signature.get());
         addSignature(std::move(Signature));
       }
       // FIXME: this was originally intended for post-linking and was only used
       // for imports that were only called indirectly (i.e. s2wasm could not
       // infer the type from a call). With object files it applies to all
       // imports. so fix the names and the tests, or rethink how import
       // delcarations work in asm files.
if (!G.hasInitializer() && G.hasExternalLinkage()) {
         OutStreamer->emitELFSize(getSymbol(&G),
                                  MCConstantExpr::create(Size, OutContext));
       }
     }
   }
 
   if (const NamedMDNode *Named = M.getNamedMetadata("wasm.custom_sections")) {
     for (const Metadata *MD : Named->operands()) {
-      const MDTuple *Tuple = dyn_cast<MDTuple>(MD);
+      const auto *Tuple = dyn_cast<MDTuple>(MD);
       if (!Tuple || Tuple->getNumOperands() != 2)
         continue;
       const MDString *Name = dyn_cast<MDString>(Tuple->getOperand(0));
       const MDString *Contents = dyn_cast<MDString>(Tuple->getOperand(1));
       if (!Name || !Contents)
         continue;
 
       OutStreamer->PushSection();
       std::string SectionName = (".custom_section." + Name->getString()).str();
-      MCSectionWasm *mySection =
+      MCSectionWasm *MySection =
           OutContext.getWasmSection(SectionName, SectionKind::getMetadata());
-      OutStreamer->SwitchSection(mySection);
+      OutStreamer->SwitchSection(MySection);
       OutStreamer->EmitBytes(Contents->getString());
       OutStreamer->PopSection();
     }
   }
 
   EmitProducerInfo(M);
 }
 
 void WebAssemblyAsmPrinter::EmitProducerInfo(Module &M) {
   llvm::SmallVector<std::pair<std::string, std::string>, 4> Languages;
   if (const NamedMDNode *Debug = M.getNamedMetadata("llvm.dbg.cu")) {
-     llvm::SmallSet<StringRef, 4> SeenLanguages;
-    for (size_t i = 0, e = Debug->getNumOperands(); i < e; ++i) {
-      const auto *CU = cast<DICompileUnit>(Debug->getOperand(i));
+    for (size_t I = 0, E = Debug->getNumOperands(); I < E; ++I) {
+      const auto *CU = cast<DICompileUnit>(Debug->getOperand(I));
       StringRef Language = dwarf::LanguageString(CU->getSourceLanguage());
       Language.consume_front("DW_LANG_");
       if (SeenLanguages.insert(Language).second)
         Languages.emplace_back(Language.str(), "");
     }
   }
 
   llvm::SmallVector<std::pair<std::string, std::string>, 4> Tools;
   if (const NamedMDNode *Ident = M.getNamedMetadata("llvm.ident")) {
     llvm::SmallSet<StringRef, 4> SeenTools;
-    for (size_t i = 0, e = Ident->getNumOperands(); i < e; ++i) {
-      const auto *S = cast<MDString>(Ident->getOperand(i)->getOperand(0));
+    for (size_t I = 0, E = Ident->getNumOperands(); I < E; ++I) {
+      const auto *S = cast<MDString>(Ident->getOperand(I)->getOperand(0));
       std::pair<StringRef, StringRef> Field = S->getString().split("version");
       StringRef Name = Field.first.trim();
       StringRef Version = Field.second.trim();
       if (SeenTools.insert(Name).second)
         Tools.emplace_back(Name.str(), Version.str());
     }
   }
 

 void WebAssemblyAsmPrinter::EmitJumpTableInfo() {
   // Nothing to do; jump tables are incorporated into the instruction stream.
 }
 
 void WebAssemblyAsmPrinter::EmitFunctionBodyStart() {
   const Function &F = MF->getFunction();
   SmallVector<MVT, 1> ResultVTs;
   SmallVector<MVT, 4> ParamVTs;
-  ComputeSignatureVTs(F.getFunctionType(), F, TM, ParamVTs, ResultVTs);
-  auto Signature = SignatureFromMVTs(ResultVTs, ParamVTs);
+  computeSignatureVTs(F.getFunctionType(), F, TM, ParamVTs, ResultVTs);
+  auto Signature = signatureFromMVTs(ResultVTs, ParamVTs);
   auto *WasmSym = cast<MCSymbolWasm>(CurrentFnSym);
   WasmSym->setSignature(Signature.get());
   addSignature(std::move(Signature));
   WasmSym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
 
   // FIXME: clean up how params and results are emitted (use signatures)
   getTargetStreamer()->emitFunctionType(WasmSym);
 
   // Emit the function index.
   if (MDNode *Idx = F.getMetadata("wasm.index")) {
     assert(Idx->getNumOperands() == 1);
 
     getTargetStreamer()->emitIndIdx(AsmPrinter::lowerConstant(
         cast<ConstantAsMetadata>(Idx->getOperand(0))->getValue()));
   }
 
   SmallVector<wasm::ValType, 16> Locals;
-  ValTypesFromMVTs(MFI->getLocals(), Locals);
+  valTypesFromMVTs(MFI->getLocals(), Locals);
   getTargetStreamer()->emitLocal(Locals);
 
   AsmPrinter::EmitFunctionBodyStart();
 }
 
 void WebAssemblyAsmPrinter::EmitInstruction(const MachineInstr *MI) {
   LLVM_DEBUG(dbgs() << "EmitInstruction: " << *MI << '\n');
 
   switch (MI->getOpcode()) {
   case WebAssembly::ARGUMENT_i32:
   case WebAssembly::ARGUMENT_i32_S:
   case WebAssembly::ARGUMENT_i64:
   case WebAssembly::ARGUMENT_i64_S:
   case WebAssembly::ARGUMENT_f32:
   case WebAssembly::ARGUMENT_f32_S:
case WebAssembly::EXTRACT_EXCEPTION_I32_S:
     // We print these only when we have -wasm-keep-registers on for assembly
     // readability.
     if (!WasmKeepRegisters)
       break;
     LLVM_FALLTHROUGH;
   default: {
     WebAssemblyMCInstLower MCInstLowering(OutContext, *this);
     MCInst TmpInst;
-    MCInstLowering.Lower(MI, TmpInst);
+    MCInstLowering.lower(MI, TmpInst);
     EmitToStreamer(*OutStreamer, TmpInst);
     break;
   }
   }
 }
 
 const MCExpr *WebAssemblyAsmPrinter::lowerConstant(const Constant *CV) {
-  if (const GlobalValue *GV = dyn_cast<GlobalValue>(CV))
+  if (const auto *GV = dyn_cast<GlobalValue>(CV))
     if (GV->getValueType()->isFunctionTy()) {
       return MCSymbolRefExpr::create(
           getSymbol(GV), MCSymbolRefExpr::VK_WebAssembly_FUNCTION, OutContext);
     }
   return AsmPrinter::lowerConstant(CV);
 }
 
 bool WebAssemblyAsmPrinter::PrintAsmOperand(const MachineInstr *MI,

lib/Target/WebAssembly/WebAssemblyCFGSort.cpp

 char WebAssemblyCFGSort::ID = 0;
 INITIALIZE_PASS(WebAssemblyCFGSort, DEBUG_TYPE,
                 "Reorders blocks in topological order", false, false)
 
 FunctionPass *llvm::createWebAssemblyCFGSort() {
   return new WebAssemblyCFGSort();
 }
 
-static void MaybeUpdateTerminator(MachineBasicBlock *MBB) {
+static void maybeUpdateTerminator(MachineBasicBlock *MBB) {
 #ifndef NDEBUG
   bool AnyBarrier = false;
 #endif
   bool AllAnalyzable = true;
   for (const MachineInstr &Term : MBB->terminators()) {
 #ifndef NDEBUG
     AnyBarrier |= Term.isBarrier();
 #endif
explicit Entry(const class Region *R)
       : TheRegion(R), NumBlocksLeft(R->getNumBlocks()) {}
 };
 } // end anonymous namespace
 
 /// Sort the blocks, taking special care to make sure that regions are not
 /// interrupted by blocks not dominated by their header.
 /// TODO: There are many opportunities for improving the heuristics here.
 /// Explore them.
-static void SortBlocks(MachineFunction &MF, const MachineLoopInfo &MLI,
+static void sortBlocks(MachineFunction &MF, const MachineLoopInfo &MLI,
                        const WebAssemblyExceptionInfo &WEI,
                        const MachineDominatorTree &MDT) {
   // Prepare for a topological sort: Record the number of predecessors each
   // block has, ignoring loop backedges.
   MF.RenumberBlocks();
   SmallVector<unsigned, 16> NumPredsLeft(MF.getNumBlockIDs(), 0);
   for (MachineBasicBlock &MBB : MF) {
     unsigned N = MBB.pred_size();
while (!Preferred.empty()) {
       }
       break;
     }
     // If we didn't find a suitable block in the Preferred list, check the
     // general Ready list.
     if (!Next) {
       // If there are no more blocks to process, we're done.
       if (Ready.empty()) {
-        MaybeUpdateTerminator(MBB);
+        maybeUpdateTerminator(MBB);
         break;
       }
       for (;;) {
         Next = Ready.top();
         Ready.pop();
         // If Next isn't dominated by the top active region header, defer it
         // until that region is done.
         if (!Entries.empty() &&
             !MDT.dominates(Entries.back().TheRegion->getHeader(), Next)) {
           Entries.back().Deferred.push_back(Next);
           continue;
         }
         break;
       }
     }
     // Move the next block into place and iterate.
     Next->moveAfter(MBB);
-    MaybeUpdateTerminator(MBB);
+    maybeUpdateTerminator(MBB);
     MBB = Next;
   }
   assert(Entries.empty() && "Active sort region list not finished");
   MF.RenumberBlocks();
 
 #ifndef NDEBUG
   SmallSetVector<const Region *, 8> OnStack;
 
bool WebAssemblyCFGSort::runOnMachineFunction(MachineFunction &MF) {
 
   const auto &MLI = getAnalysis<MachineLoopInfo>();
   const auto &WEI = getAnalysis<WebAssemblyExceptionInfo>();
   auto &MDT = getAnalysis<MachineDominatorTree>();
   // Liveness is not tracked for VALUE_STACK physreg.
   MF.getRegInfo().invalidateLiveness();
 
   // Sort the blocks, with contiguous sort regions.
-  SortBlocks(MF, MLI, WEI, MDT);
+  sortBlocks(MF, MLI, WEI, MDT);
 
   return true;
 }

lib/Target/WebAssembly/WebAssemblyCFGStackify.cpp

FunctionPass *llvm::createWebAssemblyCFGStackify() {
   return new WebAssemblyCFGStackify();
 }
 
 /// Test whether Pred has any terminators explicitly branching to MBB, as
 /// opposed to falling through. Note that it's possible (eg. in unoptimized
 /// code) for a branch instruction to both branch to a block and fallthrough
 /// to it, so we check the actual branch operands to see if there are any
 /// explicit mentions.
-static bool ExplicitlyBranchesTo(MachineBasicBlock *Pred,
+static bool explicitlyBranchesTo(MachineBasicBlock *Pred,
                                  MachineBasicBlock *MBB) {
   for (MachineInstr &MI : Pred->terminators())
     for (MachineOperand &MO : MI.explicit_operands())
       if (MO.isMBB() && MO.getMBB() == MBB)
         return true;
   return false;
 }
 
 // Returns an iterator to the earliest position possible within the MBB,
 // satisfying the restrictions given by BeforeSet and AfterSet. BeforeSet
 // contains instructions that should go before the marker, and AfterSet contains
 // ones that should go after the marker. In this function, AfterSet is only
 // used for sanity checking.
 static MachineBasicBlock::iterator
-GetEarliestInsertPos(MachineBasicBlock *MBB,
+getEarliestInsertPos(MachineBasicBlock *MBB,
                      const SmallPtrSet<const MachineInstr *, 4> &BeforeSet,
                      const SmallPtrSet<const MachineInstr *, 4> &AfterSet) {
   auto InsertPos = MBB->end();
   while (InsertPos != MBB->begin()) {
     if (BeforeSet.count(&*std::prev(InsertPos))) {
 #ifndef NDEBUG
       // Sanity check
       for (auto Pos = InsertPos, E = MBB->begin(); Pos != E; --Pos)
         assert(!AfterSet.count(&*std::prev(Pos)));
 #endif
       break;
     }
     --InsertPos;
   }
   return InsertPos;
 }
 
 // Returns an iterator to the latest position possible within the MBB,
 // satisfying the restrictions given by BeforeSet and AfterSet. BeforeSet
 // contains instructions that should go before the marker, and AfterSet contains
 // ones that should go after the marker. In this function, BeforeSet is only
 // used for sanity checking.
 static MachineBasicBlock::iterator
-GetLatestInsertPos(MachineBasicBlock *MBB,
+getLatestInsertPos(MachineBasicBlock *MBB,
                    const SmallPtrSet<const MachineInstr *, 4> &BeforeSet,
                    const SmallPtrSet<const MachineInstr *, 4> &AfterSet) {
   auto InsertPos = MBB->begin();
   while (InsertPos != MBB->end()) {
     if (AfterSet.count(&*InsertPos)) {
 #ifndef NDEBUG
       // Sanity check
       for (auto Pos = InsertPos, E = MBB->end(); Pos != E; ++Pos)
void WebAssemblyCFGStackify::placeBlockMarker(MachineBasicBlock &MBB) {
   MachineBasicBlock *Header = nullptr;
   bool IsBranchedTo = false;
   bool IsBrOnExn = false;
   MachineInstr *BrOnExn = nullptr;
   int MBBNumber = MBB.getNumber();
   for (MachineBasicBlock *Pred : MBB.predecessors()) {
     if (Pred->getNumber() < MBBNumber) {
       Header = Header ? MDT.findNearestCommonDominator(Header, Pred) : Pred;
-      if (ExplicitlyBranchesTo(Pred, &MBB)) {
+      if (explicitlyBranchesTo(Pred, &MBB)) {
         IsBranchedTo = true;
         if (Pred->getFirstTerminator()->getOpcode() == WebAssembly::BR_ON_EXN) {
           IsBrOnExn = true;
           assert(!BrOnExn && "There should be only one br_on_exn per block");
           BrOnExn = &*Pred->getFirstTerminator();
         }
       }
     }
#endif
   WebAssembly::ExprType ReturnType = WebAssembly::ExprType::Void;
   if (IsBrOnExn) {
     const char *TagName = BrOnExn->getOperand(1).getSymbolName();
     if (std::strcmp(TagName, "__cpp_exception") != 0)
       llvm_unreachable("Only C++ exception is supported");
     ReturnType = WebAssembly::ExprType::I32;
   }
 
-  auto InsertPos = GetLatestInsertPos(Header, BeforeSet, AfterSet);
+  auto InsertPos = getLatestInsertPos(Header, BeforeSet, AfterSet);
   MachineInstr *Begin =
       BuildMI(*Header, InsertPos, Header->findDebugLoc(InsertPos),
               TII.get(WebAssembly::BLOCK))
           .addImm(int64_t(ReturnType));
 
   // Decide where in Header to put the END_BLOCK.
   BeforeSet.clear();
   AfterSet.clear();

 #ifndef NDEBUG
       else
         AfterSet.insert(&MI);
 #endif
     }
   }
 
   // Mark the end of the block.
-  InsertPos = GetEarliestInsertPos(&MBB, BeforeSet, AfterSet);
+  InsertPos = getEarliestInsertPos(&MBB, BeforeSet, AfterSet);
   MachineInstr *End = BuildMI(MBB, InsertPos, MBB.findPrevDebugLoc(InsertPos),
                               TII.get(WebAssembly::END_BLOCK));
   registerScope(Begin, End);
 
   // Track the farthest-spanning scope that ends at this point.
   int Number = MBB.getNumber();
   if (!ScopeTops[Number] ||
       ScopeTops[Number]->getNumber() > Header->getNumber())
if (MI.getOpcode() == WebAssembly::END_LOOP)
       BeforeSet.insert(&MI);
 #ifndef NDEBUG
     else
       AfterSet.insert(&MI);
 #endif
   }
 
   // Mark the beginning of the loop.
-  auto InsertPos = GetEarliestInsertPos(&MBB, BeforeSet, AfterSet);
+  auto InsertPos = getEarliestInsertPos(&MBB, BeforeSet, AfterSet);
   MachineInstr *Begin = BuildMI(MBB, InsertPos, MBB.findDebugLoc(InsertPos),
                                 TII.get(WebAssembly::LOOP))
                             .addImm(int64_t(WebAssembly::ExprType::Void));
 
   // Decide where in Header to put the END_LOOP.
   BeforeSet.clear();
   AfterSet.clear();
 #ifndef NDEBUG
   for (const auto &MI : MBB)
     // Existing END_LOOP markers belong to parent loops of this loop
     if (MI.getOpcode() == WebAssembly::END_LOOP)
       AfterSet.insert(&MI);
 #endif
 
   // Mark the end of the loop (using arbitrary debug location that branched to
   // the loop end as its location).
-  InsertPos = GetEarliestInsertPos(AfterLoop, BeforeSet, AfterSet);
+  InsertPos = getEarliestInsertPos(AfterLoop, BeforeSet, AfterSet);
   DebugLoc EndDL = (*AfterLoop->pred_rbegin())->findBranchDebugLoc();
   MachineInstr *End =
       BuildMI(*AfterLoop, InsertPos, EndDL, TII.get(WebAssembly::END_LOOP));
   registerScope(Begin, End);
 
   assert((!ScopeTops[AfterLoop->getNumber()] ||
           ScopeTops[AfterLoop->getNumber()]->getNumber() < MBB.getNumber()) &&
          "With block sorting the outermost loop for a block should be first.");
void WebAssemblyCFGStackify::placeTryMarker(MachineBasicBlock &MBB) {
   const auto &MFI = *MF.getInfo<WebAssemblyFunctionInfo>();
 
   // Compute the nearest common dominator of all unwind predecessors
   MachineBasicBlock *Header = nullptr;
   int MBBNumber = MBB.getNumber();
   for (auto *Pred : MBB.predecessors()) {
     if (Pred->getNumber() < MBBNumber) {
       Header = Header ? MDT.findNearestCommonDominator(Header, Pred) : Pred;
-      assert(!ExplicitlyBranchesTo(Pred, &MBB) &&
+      assert(!explicitlyBranchesTo(Pred, &MBB) &&
              "Explicit branch to an EH pad!");
     }
   }
   if (!Header)
     return;
 
   // If this try is at the bottom of the function, insert a dummy block at the
   // end.
if (TermPos == Header->end() ||
           AfterSet.insert(&MI);
           break;
         }
       }
     }
   }
 
   // Add the TRY.
-  auto InsertPos = GetLatestInsertPos(Header, BeforeSet, AfterSet);
+  auto InsertPos = getLatestInsertPos(Header, BeforeSet, AfterSet);
   MachineInstr *Begin =
       BuildMI(*Header, InsertPos, Header->findDebugLoc(InsertPos),
               TII.get(WebAssembly::TRY))
           .addImm(int64_t(WebAssembly::ExprType::Void));
 
   // Decide where in Header to put the END_TRY.
   BeforeSet.clear();
   AfterSet.clear();

 #ifndef NDEBUG
       else
         AfterSet.insert(&MI);
 #endif
     }
   }
 
   // Mark the end of the TRY.
-  InsertPos = GetEarliestInsertPos(AfterTry, BeforeSet, AfterSet);
+  InsertPos = getEarliestInsertPos(AfterTry, BeforeSet, AfterSet);
   MachineInstr *End =
       BuildMI(*AfterTry, InsertPos, Bottom->findBranchDebugLoc(),
               TII.get(WebAssembly::END_TRY));
   registerTryScope(Begin, End, &MBB);
 
   // Track the farthest-spanning scope that ends at this point.
   int Number = AfterTry->getNumber();
   if (!ScopeTops[Number] ||
       ScopeTops[Number]->getNumber() > Header->getNumber())
     ScopeTops[Number] = Header;
 }
 
 static unsigned
-GetDepth(const SmallVectorImpl<const MachineBasicBlock *> &Stack,
+getDepth(const SmallVectorImpl<const MachineBasicBlock *> &Stack,
          const MachineBasicBlock *MBB) {
   unsigned Depth = 0;
   for (auto X : reverse(Stack)) {
     if (X == MBB)
       break;
     ++Depth;
   }
   assert(Depth < Stack.size() && "Branch destination should be in scope");

 /// checks for such cases and fixes up the signatures.
 void WebAssemblyCFGStackify::fixEndsAtEndOfFunction(MachineFunction &MF) {
   const auto &MFI = *MF.getInfo<WebAssemblyFunctionInfo>();
   assert(MFI.getResults().size() <= 1);
 
   if (MFI.getResults().empty())
     return;
 
-  WebAssembly::ExprType retType;
+  WebAssembly::ExprType RetType;
   switch (MFI.getResults().front().SimpleTy) {
   case MVT::i32:
-    retType = WebAssembly::ExprType::I32;
+    RetType = WebAssembly::ExprType::I32;
     break;
   case MVT::i64:
-    retType = WebAssembly::ExprType::I64;
+    RetType = WebAssembly::ExprType::I64;
     break;
   case MVT::f32:
-    retType = WebAssembly::ExprType::F32;
+    RetType = WebAssembly::ExprType::F32;
     break;
   case MVT::f64:
-    retType = WebAssembly::ExprType::F64;
+    RetType = WebAssembly::ExprType::F64;
     break;
   case MVT::v16i8:
   case MVT::v8i16:
   case MVT::v4i32:
   case MVT::v2i64:
   case MVT::v4f32:
   case MVT::v2f64:
-    retType = WebAssembly::ExprType::V128;
+    RetType = WebAssembly::ExprType::V128;
     break;
   case MVT::ExceptRef:
-    retType = WebAssembly::ExprType::ExceptRef;
+    RetType = WebAssembly::ExprType::ExceptRef;
     break;
   default:
     llvm_unreachable("unexpected return type");
   }
 
   for (MachineBasicBlock &MBB : reverse(MF)) {
     for (MachineInstr &MI : reverse(MBB)) {
       if (MI.isPosition() || MI.isDebugInstr())
         continue;
       if (MI.getOpcode() == WebAssembly::END_BLOCK) {
-        EndToBegin[&MI]->getOperand(0).setImm(int32_t(retType));
+        EndToBegin[&MI]->getOperand(0).setImm(int32_t(RetType));
         continue;
       }
       if (MI.getOpcode() == WebAssembly::END_LOOP) {
-        EndToBegin[&MI]->getOperand(0).setImm(int32_t(retType));
+        EndToBegin[&MI]->getOperand(0).setImm(int32_t(RetType));
         continue;
       }
       // Something other than an `end`. We're done.
       return;
     }
   }
 }
 
 // WebAssembly functions end with an end instruction, as if the function body
 // were a block.
-static void AppendEndToFunction(MachineFunction &MF,
+static void appendEndToFunction(MachineFunction &MF,
                                 const WebAssemblyInstrInfo &TII) {
   BuildMI(MF.back(), MF.back().end(),
           MF.back().findPrevDebugLoc(MF.back().end()),
           TII.get(WebAssembly::END_FUNCTION));
 }
 
 /// Insert LOOP/TRY/BLOCK markers at appropriate places.
 void WebAssemblyCFGStackify::placeMarkers(MachineFunction &MF) {
for (auto I = MBB.rbegin(), E = MBB.rend(); I != E; ++I) {
       default:
         if (MI.isTerminator()) {
           // Rewrite MBB operands to be depth immediates.
           SmallVector<MachineOperand, 4> Ops(MI.operands());
           while (MI.getNumOperands() > 0)
             MI.RemoveOperand(MI.getNumOperands() - 1);
           for (auto MO : Ops) {
             if (MO.isMBB())
-              MO = MachineOperand::CreateImm(GetDepth(Stack, MO.getMBB()));
+              MO = MachineOperand::CreateImm(getDepth(Stack, MO.getMBB()));
             MI.addOperand(MF, MO);
           }
         }
         break;
       }
     }
   }
   assert(Stack.empty() && "Control flow should be balanced");
bool WebAssemblyCFGStackify::runOnMachineFunction(MachineFunction &MF) {
   // WebAssembly's rules.
   fixEndsAtEndOfFunction(MF);
 
   // Add an end instruction at the end of the function body.
   const auto &TII = *MF.getSubtarget<WebAssemblySubtarget>().getInstrInfo();
   if (!MF.getSubtarget<WebAssemblySubtarget>()
            .getTargetTriple()
            .isOSBinFormatELF())
-    AppendEndToFunction(MF, TII);
+    appendEndToFunction(MF, TII);
 
   return true;
 }

lib/Target/WebAssembly/WebAssemblyCallIndirectFixup.cpp

 char WebAssemblyCallIndirectFixup::ID = 0;
 INITIALIZE_PASS(WebAssemblyCallIndirectFixup, DEBUG_TYPE,
                 "Rewrite call_indirect argument orderings", false, false)
 
 FunctionPass *llvm::createWebAssemblyCallIndirectFixup() {
   return new WebAssemblyCallIndirectFixup();
 }
 
-static unsigned GetNonPseudoCallIndirectOpcode(const MachineInstr &MI) {
+static unsigned getNonPseudoCallIndirectOpcode(const MachineInstr &MI) {
   switch (MI.getOpcode()) {
     using namespace WebAssembly;
   case PCALL_INDIRECT_VOID:
     return CALL_INDIRECT_VOID;
   case PCALL_INDIRECT_I32:
     return CALL_INDIRECT_I32;
   case PCALL_INDIRECT_I64:
     return CALL_INDIRECT_I64;
case PCALL_INDIRECT_v4f32:
     return CALL_INDIRECT_v4f32;
   case PCALL_INDIRECT_v2f64:
     return CALL_INDIRECT_v2f64;
   default:
     return INSTRUCTION_LIST_END;
   }
 }
 
-static bool IsPseudoCallIndirect(const MachineInstr &MI) {
-  return GetNonPseudoCallIndirectOpcode(MI) !=
+static bool isPseudoCallIndirect(const MachineInstr &MI) {
+  return getNonPseudoCallIndirectOpcode(MI) !=
          WebAssembly::INSTRUCTION_LIST_END;
 }
 
 bool WebAssemblyCallIndirectFixup::runOnMachineFunction(MachineFunction &MF) {
   LLVM_DEBUG(dbgs() << "********** Fixing up CALL_INDIRECTs **********\n"
                     << "********** Function: " << MF.getName() << '\n');
 
   bool Changed = false;
   const WebAssemblyInstrInfo *TII =
       MF.getSubtarget<WebAssemblySubtarget>().getInstrInfo();
 
   for (MachineBasicBlock &MBB : MF) {
     for (MachineInstr &MI : MBB) {
-      if (IsPseudoCallIndirect(MI)) {
+      if (isPseudoCallIndirect(MI)) {
         LLVM_DEBUG(dbgs() << "Found call_indirect: " << MI << '\n');
 
         // Rewrite pseudo to non-pseudo
-        const MCInstrDesc &Desc = TII->get(GetNonPseudoCallIndirectOpcode(MI));
+        const MCInstrDesc &Desc = TII->get(getNonPseudoCallIndirectOpcode(MI));
         MI.setDesc(Desc);
 
         // Rewrite argument order
         SmallVector<MachineOperand, 8> Ops;
 
         // Set up a placeholder for the type signature immediate.
         Ops.push_back(MachineOperand::CreateImm(0));
 

lib/Target/WebAssembly/WebAssemblyFastISel.cpp

 #define DEBUG_TYPE "wasm-fastisel"
 
 namespace {
 
 class WebAssemblyFastISel final : public FastISel {
   // All possible address modes.
   class Address {
   public:
-    typedef enum { RegBase, FrameIndexBase } BaseKind;
+    using BaseKind = enum { RegBase, FrameIndexBase };
 
   private:
-    BaseKind Kind;
+    BaseKind Kind = RegBase;
     union {
       unsigned Reg;
       int FI;
     } Base;
 
-    int64_t Offset;
+    int64_t Offset = 0;
 
-    const GlobalValue *GV;
+    const GlobalValue *GV = nullptr;
 
   public:
     // Innocuous defaults for our address.
-    Address() : Kind(RegBase), Offset(0), GV(0) { Base.Reg = 0; }
+    Address() { Base.Reg = 0; }
     void setKind(BaseKind K) {
       assert(!isSet() && "Can't change kind with non-zero base");
       Kind = K;
     }
     BaseKind getKind() const { return Kind; }
     bool isRegBase() const { return Kind == RegBase; }
     bool isFIBase() const { return Kind == FrameIndexBase; }
     void setReg(unsigned Reg) {
void setFI(unsigned FI) {
       assert(Base.FI == 0 && "Overwriting non-zero frame index");
       Base.FI = FI;
     }
     unsigned getFI() const {
       assert(isFIBase() && "Invalid base frame index access!");
       return Base.FI;
     }
 
-    void setOffset(int64_t Offset_) {
-      assert(Offset_ >= 0 && "Offsets must be non-negative");
-      Offset = Offset_;
+    void setOffset(int64_t NewOffset) {
+      assert(NewOffset >= 0 && "Offsets must be non-negative");
+      Offset = NewOffset;
     }
     int64_t getOffset() const { return Offset; }
     void setGlobalValue(const GlobalValue *G) { GV = G; }
     const GlobalValue *getGlobalValue() const { return GV; }
     bool isSet() const {
       if (isRegBase()) {
         return Base.Reg != 0;
       } else {
         return Base.FI != 0;

 };
 
 } // end anonymous namespace
 
 bool WebAssemblyFastISel::computeAddress(const Value *Obj, Address &Addr) {
 
   const User *U = nullptr;
   unsigned Opcode = Instruction::UserOp1;
-  if (const Instruction *I = dyn_cast<Instruction>(Obj)) {
+  if (const auto *I = dyn_cast<Instruction>(Obj)) {
     // Don't walk into other basic blocks unless the object is an alloca from
     // another block, otherwise it may not have a virtual register assigned.
     if (FuncInfo.StaticAllocaMap.count(static_cast<const AllocaInst *>(Obj)) ||
         FuncInfo.MBBMap[I->getParent()] == FuncInfo.MBB) {
       Opcode = I->getOpcode();
       U = I;
     }
-  } else if (const ConstantExpr *C = dyn_cast<ConstantExpr>(Obj)) {
+  } else if (const auto *C = dyn_cast<ConstantExpr>(Obj)) {
     Opcode = C->getOpcode();
     U = C;
   }
 
   if (auto *Ty = dyn_cast<PointerType>(Obj->getType()))
     if (Ty->getAddressSpace() > 255)
       // Fast instruction selection doesn't support the special
       // address spaces.
       return false;
 
-  if (const GlobalValue *GV = dyn_cast<GlobalValue>(Obj)) {
+  if (const auto *GV = dyn_cast<GlobalValue>(Obj)) {
     if (Addr.getGlobalValue())
       return false;
     Addr.setGlobalValue(GV);
     return true;
   }
 
   switch (Opcode) {
   default:
for (gep_type_iterator GTI = gep_type_begin(U), E = gep_type_end(U);
       const Value *Op = GTI.getOperand();
       if (StructType *STy = GTI.getStructTypeOrNull()) {
         const StructLayout *SL = DL.getStructLayout(STy);
         unsigned Idx = cast<ConstantInt>(Op)->getZExtValue();
         TmpOffset += SL->getElementOffset(Idx);
       } else {
         uint64_t S = DL.getTypeAllocSize(GTI.getIndexedType());
         for (;;) {
-          if (const ConstantInt *CI = dyn_cast<ConstantInt>(Op)) {
+          if (const auto *CI = dyn_cast<ConstantInt>(Op)) {
             // Constant-offset addressing.
             TmpOffset += CI->getSExtValue() * S;
             break;
           }
           if (S == 1 && Addr.isRegBase() && Addr.getReg() == 0) {
             // An unscaled add of a register. Set it as the new base.
             unsigned Reg = getRegForValue(Op);
             if (Reg == 0)
               return false;
             Addr.setReg(Reg);
             break;
           }
           if (canFoldAddIntoGEP(U, Op)) {
             // A compatible add with a constant operand. Fold the constant.
-            ConstantInt *CI =
-                cast<ConstantInt>(cast<AddOperator>(Op)->getOperand(1));
+            auto *CI = cast<ConstantInt>(cast<AddOperator>(Op)->getOperand(1));
             TmpOffset += CI->getSExtValue() * S;
             // Iterate on the other operand.
             Op = cast<AddOperator>(Op)->getOperand(0);
             continue;
           }
           // Unsupported
           goto unsupported_gep;
         }
       }
     }
     // Don't fold in negative offsets.
     if (int64_t(TmpOffset) >= 0) {
       // Try to grab the base operand now.
       Addr.setOffset(TmpOffset);
       if (computeAddress(U->getOperand(0), Addr))
         return true;
     }
     // We failed, restore everything and try the other options.
     Addr = SavedAddr;
   unsupported_gep:
     break;
   }
   case Instruction::Alloca: {
-    const AllocaInst *AI = cast<AllocaInst>(Obj);
+    const auto *AI = cast<AllocaInst>(Obj);
     DenseMap<const AllocaInst *, int>::iterator SI =
         FuncInfo.StaticAllocaMap.find(AI);
     if (SI != FuncInfo.StaticAllocaMap.end()) {
       if (Addr.isSet()) {
         return false;
       }
       Addr.setKind(Address::FrameIndexBase);
       Addr.setFI(SI->second);
       return true;
     }
     break;
   }
   case Instruction::Add: {
     // Adds of constants are common and easy enough.
     const Value *LHS = U->getOperand(0);
     const Value *RHS = U->getOperand(1);
 
     if (isa<ConstantInt>(LHS))
       std::swap(LHS, RHS);
 
-    if (const ConstantInt *CI = dyn_cast<ConstantInt>(RHS)) {
+    if (const auto *CI = dyn_cast<ConstantInt>(RHS)) {
       uint64_t TmpOffset = Addr.getOffset() + CI->getSExtValue();
       if (int64_t(TmpOffset) >= 0) {
         Addr.setOffset(TmpOffset);
         return computeAddress(LHS, Addr);
       }
     }
 
     Address Backup = Addr;
     if (computeAddress(LHS, Addr) && computeAddress(RHS, Addr))
       return true;
     Addr = Backup;
 
     break;
   }
   case Instruction::Sub: {
     // Subs of constants are common and easy enough.
     const Value *LHS = U->getOperand(0);
     const Value *RHS = U->getOperand(1);
 
-    if (const ConstantInt *CI = dyn_cast<ConstantInt>(RHS)) {
+    if (const auto *CI = dyn_cast<ConstantInt>(RHS)) {
       int64_t TmpOffset = Addr.getOffset() - CI->getSExtValue();
       if (TmpOffset >= 0) {
         Addr.setOffset(TmpOffset);
         return computeAddress(LHS, Addr);
       }
     }
     break;
   }
void WebAssemblyFastISel::addLoadStoreOperands(const Address &Addr,
   MIB.addMemOperand(MMO);
 }
 
 unsigned WebAssemblyFastISel::maskI1Value(unsigned Reg, const Value *V) {
   return zeroExtendToI32(Reg, V, MVT::i1);
 }
 
 unsigned WebAssemblyFastISel::getRegForI1Value(const Value *V, bool &Not) {
-  if (const ICmpInst *ICmp = dyn_cast<ICmpInst>(V))
+  if (const auto *ICmp = dyn_cast<ICmpInst>(V))
     if (const ConstantInt *C = dyn_cast<ConstantInt>(ICmp->getOperand(1)))
       if (ICmp->isEquality() && C->isZero() && C->getType()->isIntegerTy(32)) {
         Not = ICmp->isTrueWhenEqual();
         return getRegForValue(ICmp->getOperand(0));
       }
 
   Value *NotV;
   if (match(V, m_Not(m_Value(NotV))) && V->getType()->isIntegerTy(32)) {
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc), ResultReg)
         .addFrameIndex(SI->second);
     return ResultReg;
   }
 
   return 0;
 }
 
 unsigned WebAssemblyFastISel::fastMaterializeConstant(const Constant *C) {
-  if (const GlobalValue *GV = dyn_cast<GlobalValue>(C)) {
+  if (const auto *GV = dyn_cast<GlobalValue>(C)) {
     unsigned ResultReg =
         createResultReg(Subtarget->hasAddr64() ? &WebAssembly::I64RegClass
                                                : &WebAssembly::I32RegClass);
     unsigned Opc = Subtarget->hasAddr64() ? WebAssembly::CONST_I64
                                           : WebAssembly::CONST_I32;
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc), ResultReg)
         .addGlobalAddress(GV);
     return ResultReg;
   }
 
   // Let target-independent code handle it.
   return 0;
 }
 
 bool WebAssemblyFastISel::fastLowerArguments() {
   if (!FuncInfo.CanLowerReturn)
     return false;
 
   const Function *F = FuncInfo.Fn;
   if (F->isVarArg())
     return false;
 
-  unsigned i = 0;
+  unsigned I = 0;
   for (auto const &Arg : F->args()) {
     const AttributeList &Attrs = F->getAttributes();
-    if (Attrs.hasParamAttribute(i, Attribute::ByVal) ||
-        Attrs.hasParamAttribute(i, Attribute::SwiftSelf) ||
-        Attrs.hasParamAttribute(i, Attribute::SwiftError) ||
-        Attrs.hasParamAttribute(i, Attribute::InAlloca) ||
-        Attrs.hasParamAttribute(i, Attribute::Nest))
+    if (Attrs.hasParamAttribute(I, Attribute::ByVal) ||
+        Attrs.hasParamAttribute(I, Attribute::SwiftSelf) ||
+        Attrs.hasParamAttribute(I, Attribute::SwiftError) ||
+        Attrs.hasParamAttribute(I, Attribute::InAlloca) ||
+        Attrs.hasParamAttribute(I, Attribute::Nest))
       return false;
 
     Type *ArgTy = Arg.getType();
     if (ArgTy->isStructTy() || ArgTy->isArrayTy())
       return false;
     if (!Subtarget->hasSIMD128() && ArgTy->isVectorTy())
       return false;
 
case MVT::ExceptRef:
       Opc = WebAssembly::ARGUMENT_ExceptRef;
       RC = &WebAssembly::EXCEPT_REFRegClass;
       break;
     default:
       return false;
     }
     unsigned ResultReg = createResultReg(RC);
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc), ResultReg)
-        .addImm(i);
+        .addImm(I);
     updateValueMap(&Arg, ResultReg);
 
-    ++i;
+    ++I;
   }
 
   MRI.addLiveIn(WebAssembly::ARGUMENTS);
 
   auto *MFI = MF->getInfo<WebAssemblyFunctionInfo>();
   for (auto const &Arg : F->args()) {
     MVT::SimpleValueType ArgTy = getLegalType(getSimpleType(Arg.getType()));
     if (ArgTy == MVT::INVALID_SIMPLE_VALUE_TYPE) {
if (!F->getReturnType()->isVoidTy()) {
     }
     MFI->addResult(RetTy);
   }
 
   return true;
 }
 
 bool WebAssemblyFastISel::selectCall(const Instruction *I) {
-  const CallInst *Call = cast<CallInst>(I);
+  const auto *Call = cast<CallInst>(I);
 
   if (Call->isMustTailCall() || Call->isInlineAsm() ||
       Call->getFunctionType()->isVarArg())
     return false;
 
   Function *Func = Call->getCalledFunction();
   if (Func && Func->isIntrinsic())
     return false;
case MVT::ExceptRef:
       ResultReg = createResultReg(&WebAssembly::EXCEPT_REFRegClass);
       break;
     default:
       return false;
     }
   }
 
   SmallVector<unsigned, 8> Args;
-  for (unsigned i = 0, e = Call->getNumArgOperands(); i < e; ++i) {
-    Value *V = Call->getArgOperand(i);
+  for (unsigned I = 0, E = Call->getNumArgOperands(); I < E; ++I) {
+    Value *V = Call->getArgOperand(I);
     MVT::SimpleValueType ArgTy = getSimpleType(V->getType());
     if (ArgTy == MVT::INVALID_SIMPLE_VALUE_TYPE)
       return false;
 
     const AttributeList &Attrs = Call->getAttributes();
-    if (Attrs.hasParamAttribute(i, Attribute::ByVal) ||
-        Attrs.hasParamAttribute(i, Attribute::SwiftSelf) ||
-        Attrs.hasParamAttribute(i, Attribute::SwiftError) ||
-        Attrs.hasParamAttribute(i, Attribute::InAlloca) ||
-        Attrs.hasParamAttribute(i, Attribute::Nest))
+    if (Attrs.hasParamAttribute(I, Attribute::ByVal) ||
+        Attrs.hasParamAttribute(I, Attribute::SwiftSelf) ||
+        Attrs.hasParamAttribute(I, Attribute::SwiftError) ||
+        Attrs.hasParamAttribute(I, Attribute::InAlloca) ||
+        Attrs.hasParamAttribute(I, Attribute::Nest))
       return false;
 
     unsigned Reg;
 
-    if (Attrs.hasParamAttribute(i, Attribute::SExt))
+    if (Attrs.hasParamAttribute(I, Attribute::SExt))
       Reg = getRegForSignedValue(V);
-    else if (Attrs.hasParamAttribute(i, Attribute::ZExt))
+    else if (Attrs.hasParamAttribute(I, Attribute::ZExt))
       Reg = getRegForUnsignedValue(V);
     else
       Reg = getRegForValue(V);
 
     if (Reg == 0)
       return false;
 
     Args.push_back(Reg);
for (unsigned ArgReg : Args)
     MIB.addReg(ArgReg);
 
   if (!IsVoid)
     updateValueMap(Call, ResultReg);
   return true;
 }
 
 bool WebAssemblyFastISel::selectSelect(const Instruction *I) {
-  const SelectInst *Select = cast<SelectInst>(I);
+  const auto *Select = cast<SelectInst>(I);
 
   bool Not;
   unsigned CondReg = getRegForI1Value(Select->getCondition(), Not);
   if (CondReg == 0)
     return false;
 
   unsigned TrueReg = getRegForValue(Select->getTrueValue());
   if (TrueReg == 0)
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc), ResultReg)
       .addReg(FalseReg)
       .addReg(CondReg);
 
   updateValueMap(Select, ResultReg);
   return true;
 }
 
 bool WebAssemblyFastISel::selectTrunc(const Instruction *I) {
-  const TruncInst *Trunc = cast<TruncInst>(I);
+  const auto *Trunc = cast<TruncInst>(I);
 
   unsigned Reg = getRegForValue(Trunc->getOperand(0));
   if (Reg == 0)
     return false;
 
   if (Trunc->getOperand(0)->getType()->isIntegerTy(64)) {
     unsigned Result = createResultReg(&WebAssembly::I32RegClass);
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
             TII.get(WebAssembly::I32_WRAP_I64), Result)
         .addReg(Reg);
     Reg = Result;
   }
 
   updateValueMap(Trunc, Reg);
   return true;
 }
 
 bool WebAssemblyFastISel::selectZExt(const Instruction *I) {
-  const ZExtInst *ZExt = cast<ZExtInst>(I);
+  const auto *ZExt = cast<ZExtInst>(I);
 
   const Value *Op = ZExt->getOperand(0);
   MVT::SimpleValueType From = getSimpleType(Op->getType());
   MVT::SimpleValueType To = getLegalType(getSimpleType(ZExt->getType()));
   unsigned In = getRegForValue(Op);
   if (In == 0)
     return false;
   unsigned Reg = zeroExtend(In, Op, From, To);
   if (Reg == 0)
     return false;
 
   updateValueMap(ZExt, Reg);
   return true;
 }
 
 bool WebAssemblyFastISel::selectSExt(const Instruction *I) {
-  const SExtInst *SExt = cast<SExtInst>(I);
+  const auto *SExt = cast<SExtInst>(I);
 
   const Value *Op = SExt->getOperand(0);
   MVT::SimpleValueType From = getSimpleType(Op->getType());
   MVT::SimpleValueType To = getLegalType(getSimpleType(SExt->getType()));
   unsigned In = getRegForValue(Op);
   if (In == 0)
     return false;
   unsigned Reg = signExtend(In, Op, From, To);
   if (Reg == 0)
     return false;
 
   updateValueMap(SExt, Reg);
   return true;
 }
 
 bool WebAssemblyFastISel::selectICmp(const Instruction *I) {
-  const ICmpInst *ICmp = cast<ICmpInst>(I);
+  const auto *ICmp = cast<ICmpInst>(I);
 
   bool I32 = getSimpleType(ICmp->getOperand(0)->getType()) != MVT::i64;
   unsigned Opc;
-  bool isSigned = false;
+  bool IsSigned = false;
   switch (ICmp->getPredicate()) {
   case ICmpInst::ICMP_EQ:
     Opc = I32 ? WebAssembly::EQ_I32 : WebAssembly::EQ_I64;
     break;
   case ICmpInst::ICMP_NE:
     Opc = I32 ? WebAssembly::NE_I32 : WebAssembly::NE_I64;
     break;
   case ICmpInst::ICMP_UGT:
     Opc = I32 ? WebAssembly::GT_U_I32 : WebAssembly::GT_U_I64;
     break;
   case ICmpInst::ICMP_UGE:
     Opc = I32 ? WebAssembly::GE_U_I32 : WebAssembly::GE_U_I64;
     break;
   case ICmpInst::ICMP_ULT:
     Opc = I32 ? WebAssembly::LT_U_I32 : WebAssembly::LT_U_I64;
     break;
   case ICmpInst::ICMP_ULE:
     Opc = I32 ? WebAssembly::LE_U_I32 : WebAssembly::LE_U_I64;
     break;
   case ICmpInst::ICMP_SGT:
     Opc = I32 ? WebAssembly::GT_S_I32 : WebAssembly::GT_S_I64;
-    isSigned = true;
+    IsSigned = true;
     break;
   case ICmpInst::ICMP_SGE:
     Opc = I32 ? WebAssembly::GE_S_I32 : WebAssembly::GE_S_I64;
-    isSigned = true;
+    IsSigned = true;
     break;
   case ICmpInst::ICMP_SLT:
     Opc = I32 ? WebAssembly::LT_S_I32 : WebAssembly::LT_S_I64;
-    isSigned = true;
+    IsSigned = true;
     break;
   case ICmpInst::ICMP_SLE:
     Opc = I32 ? WebAssembly::LE_S_I32 : WebAssembly::LE_S_I64;
-    isSigned = true;
+    IsSigned = true;
     break;
   default:
     return false;
   }
 
-  unsigned LHS = getRegForPromotedValue(ICmp->getOperand(0), isSigned);
+  unsigned LHS = getRegForPromotedValue(ICmp->getOperand(0), IsSigned);
   if (LHS == 0)
     return false;
 
-  unsigned RHS = getRegForPromotedValue(ICmp->getOperand(1), isSigned);
+  unsigned RHS = getRegForPromotedValue(ICmp->getOperand(1), IsSigned);
   if (RHS == 0)
     return false;
 
   unsigned ResultReg = createResultReg(&WebAssembly::I32RegClass);
   BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc), ResultReg)
       .addReg(LHS)
       .addReg(RHS);
   updateValueMap(ICmp, ResultReg);
   return true;
 }
 
 bool WebAssemblyFastISel::selectFCmp(const Instruction *I) {
-  const FCmpInst *FCmp = cast<FCmpInst>(I);
+  const auto *FCmp = cast<FCmpInst>(I);
 
   unsigned LHS = getRegForValue(FCmp->getOperand(0));
   if (LHS == 0)
     return false;
 
   unsigned RHS = getRegForValue(FCmp->getOperand(1));
   if (RHS == 0)
     return false;
bool WebAssemblyFastISel::selectBitCast(const Instruction *I) {
   --Iter;
   assert(Iter->isBitcast());
   Iter->setPhysRegsDeadExcept(ArrayRef<unsigned>(), TRI);
   updateValueMap(I, Reg);
   return true;
 }
 
 bool WebAssemblyFastISel::selectLoad(const Instruction *I) {
-  const LoadInst *Load = cast<LoadInst>(I);
+  const auto *Load = cast<LoadInst>(I);
   if (Load->isAtomic())
     return false;
   if (!Subtarget->hasSIMD128() && Load->getType()->isVectorTy())
     return false;
 
   Address Addr;
   if (!computeAddress(Load->getPointerOperand(), Addr))
     return false;
bool WebAssemblyFastISel::selectLoad(const Instruction *I) {
 
   addLoadStoreOperands(Addr, MIB, createMachineMemOperandFor(Load));
 
   updateValueMap(Load, ResultReg);
   return true;
 }
 
 bool WebAssemblyFastISel::selectStore(const Instruction *I) {
-  const StoreInst *Store = cast<StoreInst>(I);
+  const auto *Store = cast<StoreInst>(I);
   if (Store->isAtomic())
     return false;
   if (!Subtarget->hasSIMD128() &&
       Store->getValueOperand()->getType()->isVectorTy())
     return false;
 
   Address Addr;
   if (!computeAddress(Store->getPointerOperand(), Addr))
bool WebAssemblyFastISel::selectStore(const Instruction *I) {
 
   addLoadStoreOperands(Addr, MIB, createMachineMemOperandFor(Store));
 
   MIB.addReg(ValueReg);
   return true;
 }
 
 bool WebAssemblyFastISel::selectBr(const Instruction *I) {
-  const BranchInst *Br = cast<BranchInst>(I);
+  const auto *Br = cast<BranchInst>(I);
   if (Br->isUnconditional()) {
     MachineBasicBlock *MSucc = FuncInfo.MBBMap[Br->getSuccessor(0)];
     fastEmitBranch(MSucc, Br->getDebugLoc());
     return true;
   }
 
   MachineBasicBlock *TBB = FuncInfo.MBBMap[Br->getSuccessor(0)];
   MachineBasicBlock *FBB = FuncInfo.MBBMap[Br->getSuccessor(1)];
bool WebAssemblyFastISel::selectBr(const Instruction *I) {
   finishCondBranch(Br->getParent(), TBB, FBB);
   return true;
 }
 
 bool WebAssemblyFastISel::selectRet(const Instruction *I) {
   if (!FuncInfo.CanLowerReturn)
     return false;
 
-  const ReturnInst *Ret = cast<ReturnInst>(I);
+  const auto *Ret = cast<ReturnInst>(I);
 
   if (Ret->getNumOperands() == 0) {
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
             TII.get(WebAssembly::RETURN_VOID));
     return true;
   }
 
   Value *RV = Ret->getOperand(0);

lib/Target/WebAssembly/WebAssemblyFixFunctionBitcasts.cpp

INITIALIZE_PASS(FixFunctionBitcasts, DEBUG_TYPE,
                 "Fix mismatching bitcasts for WebAssembly", false, false)
 
 ModulePass *llvm::createWebAssemblyFixFunctionBitcasts() {
   return new FixFunctionBitcasts();
 }
 
 // Recursively descend the def-use lists from V to find non-bitcast users of
 // bitcasts of V.
-static void FindUses(Value *V, Function &F,
+static void findUses(Value *V, Function &F,
                      SmallVectorImpl<std::pair<Use *, Function *>> &Uses,
                      SmallPtrSetImpl<Constant *> &ConstantBCs) {
   for (Use &U : V->uses()) {
-    if (BitCastOperator *BC = dyn_cast<BitCastOperator>(U.getUser()))
-      FindUses(BC, F, Uses, ConstantBCs);
+    if (auto *BC = dyn_cast<BitCastOperator>(U.getUser()))
+      findUses(BC, F, Uses, ConstantBCs);
     else if (U.get()->getType() != F.getType()) {
       CallSite CS(U.getUser());
       if (!CS)
         // Skip uses that aren't immediately called
         continue;
       Value *Callee = CS.getCalledValue();
       if (Callee != V)
         // Skip calls where the function isn't the callee
         continue;
       if (isa<Constant>(U.get())) {
         // Only add constant bitcasts to the list once; they get RAUW'd
-        auto c = ConstantBCs.insert(cast<Constant>(U.get()));
-        if (!c.second)
+        auto C = ConstantBCs.insert(cast<Constant>(U.get()));
+        if (!C.second)
           continue;
       }
       Uses.push_back(std::make_pair(&U, &F));
     }
   }
 }
 
 // Create a wrapper function with type Ty that calls F (which may have a

 // or fail at compiler time.  The reason we delay the error is that we want
 // to support the CMake which expects to be able to compile and link programs
 // that refer to functions with entirely incorrect signatures (this is how
 // CMake detects the existence of a function in a toolchain).
 //
 // For bitcasts that involve struct types we don't know at this stage if they
 // would be equivalent at the wasm level and so we can't know if we need to
 // generate a wrapper.
-static Function *CreateWrapper(Function *F, FunctionType *Ty) {
+static Function *createWrapper(Function *F, FunctionType *Ty) {
   Module *M = F->getParent();
 
   Function *Wrapper = Function::Create(Ty, Function::PrivateLinkage,
                                        F->getName() + "_bitcast", M);
   BasicBlock *BB = BasicBlock::Create(M->getContext(), "body", Wrapper);
   const DataLayout &DL = BB->getModule()->getDataLayout();
 
   // Determine what arguments to pass.
if (ArgType == ParamType) {
       Args.push_back(&*AI);
     } else {
       if (CastInst::isBitOrNoopPointerCastable(ArgType, ParamType, DL)) {
         Instruction *PtrCast =
             CastInst::CreateBitOrPointerCast(AI, ParamType, "cast");
         BB->getInstList().push_back(PtrCast);
         Args.push_back(PtrCast);
       } else if (ArgType->isStructTy() || ParamType->isStructTy()) {
-        LLVM_DEBUG(dbgs() << "CreateWrapper: struct param type in bitcast: "
+        LLVM_DEBUG(dbgs() << "createWrapper: struct param type in bitcast: "
                           << F->getName() << "\n");
         WrapperNeeded = false;
       } else {
-        LLVM_DEBUG(dbgs() << "CreateWrapper: arg type mismatch calling: "
+        LLVM_DEBUG(dbgs() << "createWrapper: arg type mismatch calling: "
                           << F->getName() << "\n");
         LLVM_DEBUG(dbgs() << "Arg[" << Args.size() << "] Expected: "
                           << *ParamType << " Got: " << *ArgType << "\n");
         TypeMismatch = true;
         break;
       }
     }
   }
if (RtnType->isVoidTy()) {
       ReturnInst::Create(M->getContext(), Call, BB);
     } else if (CastInst::isBitOrNoopPointerCastable(ExpectedRtnType, RtnType,
                                                     DL)) {
       Instruction *Cast =
           CastInst::CreateBitOrPointerCast(Call, RtnType, "cast");
       BB->getInstList().push_back(Cast);
       ReturnInst::Create(M->getContext(), Cast, BB);
     } else if (RtnType->isStructTy() || ExpectedRtnType->isStructTy()) {
-      LLVM_DEBUG(dbgs() << "CreateWrapper: struct return type in bitcast: "
+      LLVM_DEBUG(dbgs() << "createWrapper: struct return type in bitcast: "
                         << F->getName() << "\n");
       WrapperNeeded = false;
     } else {
-      LLVM_DEBUG(dbgs() << "CreateWrapper: return type mismatch calling: "
+      LLVM_DEBUG(dbgs() << "createWrapper: return type mismatch calling: "
                         << F->getName() << "\n");
       LLVM_DEBUG(dbgs() << "Expected: " << *ExpectedRtnType
                         << " Got: " << *RtnType << "\n");
       TypeMismatch = true;
     }
   }
 
   if (TypeMismatch) {
     // Create a new wrapper that simply contains `unreachable`.
     Wrapper->eraseFromParent();
     Wrapper = Function::Create(Ty, Function::PrivateLinkage,
                                F->getName() + "_bitcast_invalid", M);
     BasicBlock *BB = BasicBlock::Create(M->getContext(), "body", Wrapper);
     new UnreachableInst(M->getContext(), BB);
     Wrapper->setName(F->getName() + "_bitcast_invalid");
   } else if (!WrapperNeeded) {
-    LLVM_DEBUG(dbgs() << "CreateWrapper: no wrapper needed: " << F->getName()
+    LLVM_DEBUG(dbgs() << "createWrapper: no wrapper needed: " << F->getName()
                       << "\n");
     Wrapper->eraseFromParent();
     return nullptr;
   }
-  LLVM_DEBUG(dbgs() << "CreateWrapper: " << F->getName() << "\n");
+  LLVM_DEBUG(dbgs() << "createWrapper: " << F->getName() << "\n");
   return Wrapper;
 }
 
 // Test whether a main function with type FuncTy should be rewritten to have
 // type MainTy.
-bool ShouldFixMainFunction(FunctionType *FuncTy, FunctionType *MainTy) {
+bool shouldFixMainFunction(FunctionType *FuncTy, FunctionType *MainTy) {
   // Only fix the main function if it's the standard zero-arg form. That way,
   // the standard cases will work as expected, and users will see signature
   // mismatches from the linker for non-standard cases.
   return FuncTy->getReturnType() == MainTy->getReturnType() &&
          FuncTy->getNumParams() == 0 &&
          !FuncTy->isVarArg();
 }
 
 bool FixFunctionBitcasts::runOnModule(Module &M) {
   LLVM_DEBUG(dbgs() << "********** Fix Function Bitcasts **********\n");
 
   Function *Main = nullptr;
   CallInst *CallMain = nullptr;
   SmallVector<std::pair<Use *, Function *>, 0> Uses;
   SmallPtrSet<Constant *, 2> ConstantBCs;
 
   // Collect all the places that need wrappers.
   for (Function &F : M) {
-    FindUses(&F, F, Uses, ConstantBCs);
+    findUses(&F, F, Uses, ConstantBCs);
 
     // If we have a "main" function, and its type isn't
     // "int main(int argc, char *argv[])", create an artificial call with it
     // bitcasted to that type so that we generate a wrapper for it, so that
     // the C runtime can call it.
     if (F.getName() == "main") {
       Main = &F;
       LLVMContext &C = M.getContext();
       Type *MainArgTys[] = {Type::getInt32Ty(C),
                             PointerType::get(Type::getInt8PtrTy(C), 0)};
       FunctionType *MainTy = FunctionType::get(Type::getInt32Ty(C), MainArgTys,
                                                /*isVarArg=*/false);
-      if (ShouldFixMainFunction(F.getFunctionType(), MainTy)) {
+      if (shouldFixMainFunction(F.getFunctionType(), MainTy)) {
         LLVM_DEBUG(dbgs() << "Found `main` function with incorrect type: "
                           << *F.getFunctionType() << "\n");
         Value *Args[] = {UndefValue::get(MainArgTys[0]),
                          UndefValue::get(MainArgTys[1])};
         Value *Casted =
             ConstantExpr::getBitCast(Main, PointerType::get(MainTy, 0));
         CallMain = CallInst::Create(Casted, Args, "call_main");
         Use *UseMain = &CallMain->getOperandUse(2);
         Uses.push_back(std::make_pair(UseMain, &F));
       }
     }
   }
 
   DenseMap<std::pair<Function *, FunctionType *>, Function *> Wrappers;
 
   for (auto &UseFunc : Uses) {
     Use *U = UseFunc.first;
     Function *F = UseFunc.second;
-    PointerType *PTy = cast<PointerType>(U->get()->getType());
-    FunctionType *Ty = dyn_cast<FunctionType>(PTy->getElementType());
+    auto *PTy = cast<PointerType>(U->get()->getType());
+    auto *Ty = dyn_cast<FunctionType>(PTy->getElementType());
 
     // If the function is casted to something like i8* as a "generic pointer"
     // to be later casted to something else, we can't generate a wrapper for it.
     // Just ignore such casts for now.
     if (!Ty)
       continue;
 
     auto Pair = Wrappers.insert(std::make_pair(std::make_pair(F, Ty), nullptr));
     if (Pair.second)
-      Pair.first->second = CreateWrapper(F, Ty);
+      Pair.first->second = createWrapper(F, Ty);
 
     Function *Wrapper = Pair.first->second;
     if (!Wrapper)
       continue;
 
     if (isa<Constant>(U->get()))
       U->get()->replaceAllUsesWith(Wrapper);
     else
       U->set(Wrapper);
   }
 
   // If we created a wrapper for main, rename the wrapper so that it's the
   // one that gets called from startup.
   if (CallMain) {
     Main->setName("__original_main");
-    Function *MainWrapper =
+    auto *MainWrapper =
         cast<Function>(CallMain->getCalledValue()->stripPointerCasts());
     delete CallMain;
     if (Main->isDeclaration()) {
       // The wrapper is not needed in this case as we don't need to export
       // it to anyone else.
       MainWrapper->eraseFromParent();
     } else {
       // Otherwise give the wrapper the same linkage as the original main

lib/Target/WebAssembly/WebAssemblyISelDAGToDAG.cpp

 class WebAssemblyDAGToDAGISel final : public SelectionDAGISel {
   /// Keep a pointer to the WebAssemblySubtarget around so that we can make the
   /// right decision when generating code for different targets.
   const WebAssemblySubtarget *Subtarget;
 
   bool ForCodeSize;
 
 public:
-  WebAssemblyDAGToDAGISel(WebAssemblyTargetMachine &tm,
+  WebAssemblyDAGToDAGISel(WebAssemblyTargetMachine &TM,
                           CodeGenOpt::Level OptLevel)
-      : SelectionDAGISel(tm, OptLevel), Subtarget(nullptr), ForCodeSize(false) {
+      : SelectionDAGISel(TM, OptLevel), Subtarget(nullptr), ForCodeSize(false) {
   }
 
   StringRef getPassName() const override {
     return "WebAssembly Instruction Selection";
   }
 
   bool runOnMachineFunction(MachineFunction &MF) override {
     LLVM_DEBUG(dbgs() << "********** ISelDAGToDAG **********\n"

lib/Target/WebAssembly/WebAssemblyISelLowering.cpp

static MachineBasicBlock *LowerFPToInt(MachineInstr &MI, DebugLoc DL,
   unsigned Eqz = WebAssembly::EQZ_I32;
   unsigned And = WebAssembly::AND_I32;
   int64_t Limit = Int64 ? INT64_MIN : INT32_MIN;
   int64_t Substitute = IsUnsigned ? 0 : Limit;
   double CmpVal = IsUnsigned ? -(double)Limit * 2.0 : -(double)Limit;
   auto &Context = BB->getParent()->getFunction().getContext();
   Type *Ty = Float64 ? Type::getDoubleTy(Context) : Type::getFloatTy(Context);
 
-  const BasicBlock *LLVM_BB = BB->getBasicBlock();
+  const BasicBlock *LLVMBB = BB->getBasicBlock();
   MachineFunction *F = BB->getParent();
-  MachineBasicBlock *TrueMBB = F->CreateMachineBasicBlock(LLVM_BB);
-  MachineBasicBlock *FalseMBB = F->CreateMachineBasicBlock(LLVM_BB);
-  MachineBasicBlock *DoneMBB = F->CreateMachineBasicBlock(LLVM_BB);
+  MachineBasicBlock *TrueMBB = F->CreateMachineBasicBlock(LLVMBB);
+  MachineBasicBlock *FalseMBB = F->CreateMachineBasicBlock(LLVMBB);
+  MachineBasicBlock *DoneMBB = F->CreateMachineBasicBlock(LLVMBB);
 
   MachineFunction::iterator It = ++BB->getIterator();
   F->insert(It, FalseMBB);
   F->insert(It, TrueMBB);
   F->insert(It, DoneMBB);
 
   // Transfer the remainder of BB and its successor edges to DoneMBB.
   DoneMBB->splice(DoneMBB->begin(), BB,

 //===----------------------------------------------------------------------===//
 // WebAssembly Lowering private implementation.
 //===----------------------------------------------------------------------===//
 
 //===----------------------------------------------------------------------===//
 // Lowering Code
 //===----------------------------------------------------------------------===//
 
-static void fail(const SDLoc &DL, SelectionDAG &DAG, const char *msg) {
+static void fail(const SDLoc &DL, SelectionDAG &DAG, const char *Msg) {
   MachineFunction &MF = DAG.getMachineFunction();
   DAG.getContext()->diagnose(
-      DiagnosticInfoUnsupported(MF.getFunction(), msg, DL.getDebugLoc()));
+      DiagnosticInfoUnsupported(MF.getFunction(), Msg, DL.getDebugLoc()));
 }
 
 // Test whether the given calling convention is supported.
-static bool CallingConvSupported(CallingConv::ID CallConv) {
+static bool callingConvSupported(CallingConv::ID CallConv) {
   // We currently support the language-independent target-independent
   // conventions. We don't yet have a way to annotate calls with properties like
   // "cold", and we don't have any call-clobbered registers, so these are mostly
   // all handled the same.
   return CallConv == CallingConv::C || CallConv == CallingConv::Fast ||
          CallConv == CallingConv::Cold ||
          CallConv == CallingConv::PreserveMost ||
          CallConv == CallingConv::PreserveAll ||
          CallConv == CallingConv::CXX_FAST_TLS;
 }
 
 SDValue
 WebAssemblyTargetLowering::LowerCall(CallLoweringInfo &CLI,
                                      SmallVectorImpl<SDValue> &InVals) const {
   SelectionDAG &DAG = CLI.DAG;
   SDLoc DL = CLI.DL;
   SDValue Chain = CLI.Chain;
   SDValue Callee = CLI.Callee;
   MachineFunction &MF = DAG.getMachineFunction();
   auto Layout = MF.getDataLayout();
 
   CallingConv::ID CallConv = CLI.CallConv;
-  if (!CallingConvSupported(CallConv))
+  if (!callingConvSupported(CallConv))
     fail(DL, DAG,
          "WebAssembly doesn't support language-specific or target-specific "
          "calling conventions yet");
   if (CLI.IsPatchPoint)
     fail(DL, DAG, "WebAssembly doesn't support patch point yet");
 
   // WebAssembly doesn't currently support explicit tail calls. If they are
   // required, fail. Otherwise, just disable them.
   if ((CallConv == CallingConv::Fast && CLI.IsTailCall &&
        MF.getTarget().Options.GuaranteedTailCallOpt) ||
       (CLI.CS && CLI.CS.isMustTailCall()))
     fail(DL, DAG, "WebAssembly doesn't support tail call yet");
   CLI.IsTailCall = false;
 
   SmallVectorImpl<ISD::InputArg> &Ins = CLI.Ins;
   if (Ins.size() > 1)
     fail(DL, DAG, "WebAssembly doesn't support more than 1 returned value yet");
 
   SmallVectorImpl<ISD::OutputArg> &Outs = CLI.Outs;
   SmallVectorImpl<SDValue> &OutVals = CLI.OutVals;
   unsigned NumFixedArgs = 0;
-  for (unsigned i = 0; i < Outs.size(); ++i) {
-    const ISD::OutputArg &Out = Outs[i];
-    SDValue &OutVal = OutVals[i];
+  for (unsigned I = 0; I < Outs.size(); ++I) {
+    const ISD::OutputArg &Out = Outs[I];
+    SDValue &OutVal = OutVals[I];
     if (Out.Flags.isNest())
       fail(DL, DAG, "WebAssembly hasn't implemented nest arguments");
     if (Out.Flags.isInAlloca())
       fail(DL, DAG, "WebAssembly hasn't implemented inalloca arguments");
     if (Out.Flags.isInConsecutiveRegs())
       fail(DL, DAG, "WebAssembly hasn't implemented cons regs arguments");
     if (Out.Flags.isInConsecutiveRegsLast())
       fail(DL, DAG, "WebAssembly hasn't implemented cons regs last arguments");

 }
 
 SDValue WebAssemblyTargetLowering::LowerReturn(
     SDValue Chain, CallingConv::ID CallConv, bool /*IsVarArg*/,
     const SmallVectorImpl<ISD::OutputArg> &Outs,
     const SmallVectorImpl<SDValue> &OutVals, const SDLoc &DL,
     SelectionDAG &DAG) const {
   assert(Outs.size() <= 1 && "WebAssembly can only return up to one value");
-  if (!CallingConvSupported(CallConv))
+  if (!callingConvSupported(CallConv))
     fail(DL, DAG, "WebAssembly doesn't support non-C calling conventions");
 
   SmallVector<SDValue, 4> RetOps(1, Chain);
   RetOps.append(OutVals.begin(), OutVals.end());
   Chain = DAG.getNode(WebAssemblyISD::RETURN, DL, MVT::Other, RetOps);
 
   // Record the number and types of the return values.
   for (const ISD::OutputArg &Out : Outs) {
SDValue WebAssemblyTargetLowering::LowerReturn(
 
   return Chain;
 }
 
 SDValue WebAssemblyTargetLowering::LowerFormalArguments(
     SDValue Chain, CallingConv::ID CallConv, bool IsVarArg,
     const SmallVectorImpl<ISD::InputArg> &Ins, const SDLoc &DL,
     SelectionDAG &DAG, SmallVectorImpl<SDValue> &InVals) const {
-  if (!CallingConvSupported(CallConv))
+  if (!callingConvSupported(CallConv))
     fail(DL, DAG, "WebAssembly doesn't support non-C calling conventions");
 
   MachineFunction &MF = DAG.getMachineFunction();
   auto *MFI = MF.getInfo<WebAssemblyFunctionInfo>();
 
   // Set up the incoming ARGUMENTS value, which serves to represent the liveness
   // of the incoming values before they're represented by virtual registers.
   MF.getRegInfo().addLiveIn(WebAssembly::ARGUMENTS);
Chain = DAG.getCopyToReg(
         DAG.getNode(WebAssemblyISD::ARGUMENT, DL, PtrVT,
                     DAG.getTargetConstant(Ins.size(), DL, MVT::i32)));
     MFI->addParam(PtrVT);
   }
 
   // Record the number and types of arguments and results.
   SmallVector<MVT, 4> Params;
   SmallVector<MVT, 4> Results;
-  ComputeSignatureVTs(MF.getFunction().getFunctionType(), MF.getFunction(),
+  computeSignatureVTs(MF.getFunction().getFunctionType(), MF.getFunction(),
                       DAG.getTarget(), Params, Results);
   for (MVT VT : Results)
     MFI->addResult(VT);
   // TODO: Use signatures in WebAssemblyMachineFunctionInfo too and unify
   // the param logic here with ComputeSignatureVTs
   assert(MFI->getParams().size() == Params.size() &&
          std::equal(MFI->getParams().begin(), MFI->getParams().end(),
                     Params.begin()));
case ISD::INTRINSIC_WO_CHAIN:
     break;
   default:
     llvm_unreachable("Invalid intrinsic");
   }
   SDLoc DL(Op);
 
   switch (IntNo) {
   default:
-    return {}; // Don't custom lower most intrinsics.
+    return SDValue(); // Don't custom lower most intrinsics.
 
   case Intrinsic::wasm_lsda: {
     EVT VT = Op.getValueType();
     const TargetLowering &TLI = DAG.getTargetLoweringInfo();
     MVT PtrVT = TLI.getPointerTy(DAG.getDataLayout());
     auto &Context = MF.getMMI().getContext();
     MCSymbol *S = Context.getOrCreateSymbol(Twine("GCC_except_table") +
                                             Twine(MF.getFunctionNumber()));
WebAssemblyTargetLowering::LowerVECTOR_SHUFFLE(SDValue Op,
 
   // Space for two vector args and sixteen mask indices
   SDValue Ops[18];
   size_t OpIdx = 0;
   Ops[OpIdx++] = Op.getOperand(0);
   Ops[OpIdx++] = Op.getOperand(1);
 
   // Expand mask indices to byte indices and materialize them as operands
-  for (size_t I = 0, Lanes = Mask.size(); I < Lanes; ++I) {
+  for (int M : Mask) {
     for (size_t J = 0; J < LaneBytes; ++J) {
       // Lower undefs (represented by -1 in mask) to zero
-      uint64_t ByteIndex =
-          Mask[I] == -1 ? 0 : (uint64_t)Mask[I] * LaneBytes + J;
+      uint64_t ByteIndex = M == -1 ? 0 : (uint64_t)M * LaneBytes + J;
       Ops[OpIdx++] = DAG.getConstant(ByteIndex, DL, MVT::i32);
     }
   }
 
   return DAG.getNode(WebAssemblyISD::SHUFFLE, DL, Op.getValueType(), Ops);
 }
 
 SDValue
 WebAssemblyTargetLowering::LowerAccessVectorElement(SDValue Op,
                                                     SelectionDAG &DAG) const {
   // Allow constant lane indices, expand variable lane indices
   SDNode *IdxNode = Op.getOperand(Op.getNumOperands() - 1).getNode();
   if (isa<ConstantSDNode>(IdxNode) || IdxNode->isUndef())
     return Op;
   else
     // Perform default expansion
     return SDValue();
 }
 
-static SDValue UnrollVectorShift(SDValue Op, SelectionDAG &DAG) {
+static SDValue unrollVectorShift(SDValue Op, SelectionDAG &DAG) {
   EVT LaneT = Op.getSimpleValueType().getVectorElementType();
   // 32-bit and 64-bit unrolled shifts will have proper semantics
   if (LaneT.bitsGE(MVT::i32))
     return DAG.UnrollVectorOp(Op.getNode());
   // Otherwise mask the shift value to get proper semantics from 32-bit shift
   SDLoc DL(Op);
   SDValue ShiftVal = Op.getOperand(1);
   uint64_t MaskVal = LaneT.getSizeInBits() - 1;
SDValue WebAssemblyTargetLowering::LowerShift(SDValue Op,
   SDLoc DL(Op);
 
   // Only manually lower vector shifts
   assert(Op.getSimpleValueType().isVector());
 
   // Expand all vector shifts until V8 fixes its implementation
   // TODO: remove this once V8 is fixed
   if (!Subtarget->hasUnimplementedSIMD128())
-    return UnrollVectorShift(Op, DAG);
+    return unrollVectorShift(Op, DAG);
 
   // Unroll non-splat vector shifts
   BuildVectorSDNode *ShiftVec;
   SDValue SplatVal;
   if (!(ShiftVec = dyn_cast<BuildVectorSDNode>(Op.getOperand(1).getNode())) ||
       !(SplatVal = ShiftVec->getSplatValue()))
-    return UnrollVectorShift(Op, DAG);
+    return unrollVectorShift(Op, DAG);
 
   // All splats except i64x2 const splats are handled by patterns
-  ConstantSDNode *SplatConst = dyn_cast<ConstantSDNode>(SplatVal);
+  auto *SplatConst = dyn_cast<ConstantSDNode>(SplatVal);
   if (!SplatConst || Op.getSimpleValueType() != MVT::v2i64)
     return Op;
 
   // i64x2 const splats are custom lowered to avoid unnecessary wraps
   unsigned Opcode;
   switch (Op.getOpcode()) {
   case ISD::SHL:
     Opcode = WebAssemblyISD::VEC_SHL;

lib/Target/WebAssembly/WebAssemblyLowerEmscriptenEHSjLj.cpp

class WebAssemblyLowerEmscriptenEHSjLj final : public ModulePass {
   static const char *SaveSetjmpFName;
   static const char *TestSetjmpFName;
   static const char *FindMatchingCatchPrefix;
   static const char *InvokePrefix;
 
   bool EnableEH;   // Enable exception handling
   bool EnableSjLj; // Enable setjmp/longjmp handling
 
-  GlobalVariable *ThrewGV;
-  GlobalVariable *ThrewValueGV;
-  Function *GetTempRet0Func;
-  Function *SetTempRet0Func;
-  Function *ResumeF;
-  Function *EHTypeIDF;
-  Function *EmLongjmpF;
-  Function *EmLongjmpJmpbufF;
-  Function *SaveSetjmpF;
-  Function *TestSetjmpF;
+  GlobalVariable *ThrewGV = nullptr;
+  GlobalVariable *ThrewValueGV = nullptr;
+  Function *GetTempRet0Func = nullptr;
+  Function *SetTempRet0Func = nullptr;
+  Function *ResumeF = nullptr;
+  Function *EHTypeIDF = nullptr;
+  Function *EmLongjmpF = nullptr;
+  Function *EmLongjmpJmpbufF = nullptr;
+  Function *SaveSetjmpF = nullptr;
+  Function *TestSetjmpF = nullptr;
 
   // __cxa_find_matching_catch_N functions.
   // Indexed by the number of clauses in an original landingpad instruction.
   DenseMap<int, Function *> FindMatchingCatches;
   // Map of <function signature string, invoke_ wrappers>
   StringMap<Function *> InvokeWrappers;
   // Set of whitelisted function names for exception handling
   std::set<std::string> EHWhitelistSet;
class WebAssemblyLowerEmscriptenEHSjLj final : public ModulePass {
   bool canLongjmp(Module &M, const Value *Callee) const;
 
   void rebuildSSA(Function &F);
 
 public:
   static char ID;
 
   WebAssemblyLowerEmscriptenEHSjLj(bool EnableEH = true, bool EnableSjLj = true)
-      : ModulePass(ID), EnableEH(EnableEH), EnableSjLj(EnableSjLj),
-        ThrewGV(nullptr), ThrewValueGV(nullptr), GetTempRet0Func(nullptr),
-        SetTempRet0Func(nullptr), ResumeF(nullptr), EHTypeIDF(nullptr),
-        EmLongjmpF(nullptr), EmLongjmpJmpbufF(nullptr), SaveSetjmpF(nullptr),
-        TestSetjmpF(nullptr) {
+      : ModulePass(ID), EnableEH(EnableEH), EnableSjLj(EnableSjLj) {
     EHWhitelistSet.insert(EHWhitelist.begin(), EHWhitelist.end());
   }
   bool runOnModule(Module &M) override;
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<DominatorTreeWrapperPass>();
   }
 };
Value *WebAssemblyLowerEmscriptenEHSjLj::wrapInvoke(CallOrInvoke *CI) {
   // Because we added the pointer to the callee as first argument, all
   // argument attribute indices have to be incremented by one.
   SmallVector<AttributeSet, 8> ArgAttributes;
   const AttributeList &InvokeAL = CI->getAttributes();
 
   // No attributes for the callee pointer.
   ArgAttributes.push_back(AttributeSet());
   // Copy the argument attributes from the original
-  for (unsigned i = 0, e = CI->getNumArgOperands(); i < e; ++i)
-    ArgAttributes.push_back(InvokeAL.getParamAttributes(i));
+  for (unsigned I = 0, E = CI->getNumArgOperands(); I < E; ++I)
+    ArgAttributes.push_back(InvokeAL.getParamAttributes(I));
 
   // Reconstruct the AttributesList based on the vector we constructed.
   AttributeList NewCallAL =
       AttributeList::get(C, InvokeAL.getFnAttributes(),
                          InvokeAL.getRetAttributes(), ArgAttributes);
   NewCall->setAttributes(NewCallAL);
 
   CI->replaceAllUsesWith(NewCall);
void WebAssemblyLowerEmscriptenEHSjLj::rebuildSSA(Function &F) {
   SSAUpdater SSA;
   for (BasicBlock &BB : F) {
     for (Instruction &I : BB) {
       for (auto UI = I.use_begin(), UE = I.use_end(); UI != UE;) {
         Use &U = *UI;
         ++UI;
         SSA.Initialize(I.getType(), I.getName());
         SSA.AddAvailableValue(&BB, &I);
-        Instruction *User = cast<Instruction>(U.getUser());
+        auto *User = cast<Instruction>(U.getUser());
         if (User->getParent() == &BB)
           continue;
 
-        if (PHINode *UserPN = dyn_cast<PHINode>(User))
+        if (auto *UserPN = dyn_cast<PHINode>(User))
           if (UserPN->getIncomingBlock(U) == &BB)
             continue;
 
         if (DT.dominates(&I, User))
           continue;
         SSA.RewriteUseAfterInsertions(U);
       }
     }
if (auto *LPI = dyn_cast<LandingPadInst>(I))
       LandingPads.insert(LPI);
   }
 
   // Handle all the landingpad for this function together, as multiple invokes
   // may share a single lp
   for (LandingPadInst *LPI : LandingPads) {
     IRB.SetInsertPoint(LPI);
     SmallVector<Value *, 16> FMCArgs;
-    for (unsigned i = 0, e = LPI->getNumClauses(); i < e; ++i) {
-      Constant *Clause = LPI->getClause(i);
+    for (unsigned I = 0, E = LPI->getNumClauses(); I < E; ++I) {
+      Constant *Clause = LPI->getClause(I);
       // As a temporary workaround for the lack of aggregate varargs support
       // in the interface between JS and wasm, break out filter operands into
       // their component elements.
-      if (LPI->isFilter(i)) {
+      if (LPI->isFilter(I)) {
         auto *ATy = cast<ArrayType>(Clause->getType());
-        for (unsigned j = 0, e = ATy->getNumElements(); j < e; ++j) {
-          Value *EV = IRB.CreateExtractValue(Clause, makeArrayRef(j), "filter");
+        for (unsigned J = 0, E = ATy->getNumElements(); J < E; ++J) {
+          Value *EV = IRB.CreateExtractValue(Clause, makeArrayRef(J), "filter");
           FMCArgs.push_back(EV);
         }
       } else
         FMCArgs.push_back(Clause);
     }
 
     // Create a call to __cxa_find_matching_catch_N function
     Function *FMCF = getFindMatchingCatch(M, FMCArgs.size());
bool WebAssemblyLowerEmscriptenEHSjLj::runSjLjOnFunction(Function &F) {
   // Because we are creating new BBs while processing and don't want to make
   // all these newly created BBs candidates again for longjmp processing, we
   // first make the vector of candidate BBs.
   std::vector<BasicBlock *> BBs;
   for (BasicBlock &BB : F)
     BBs.push_back(&BB);
 
   // BBs.size() will change within the loop, so we query it every time
-  for (unsigned i = 0; i < BBs.size(); i++) {
-    BasicBlock *BB = BBs[i];
+  for (unsigned I = 0; I < BBs.size(); I++) {
+    BasicBlock *BB = BBs[I];
     for (Instruction &I : *BB) {
       assert(!isa<InvokeInst>(&I));
       auto *CI = dyn_cast<CallInst>(&I);
       if (!CI)
         continue;
 
       const Value *Callee = CI->getCalledValue();
       if (!canLongjmp(M, Callee))
for (Instruction &I : *BB) {
 
       // Create switch instruction
       IRB.SetInsertPoint(EndBB);
       SwitchInst *SI = IRB.CreateSwitch(Label, Tail, SetjmpRetPHIs.size());
       // -1 means no longjmp happened, continue normally (will hit the default
       // switch case). 0 means a longjmp that is not ours to handle, needs a
       // rethrow. Otherwise the index is the same as the index in P+1 (to avoid
       // 0).
-      for (unsigned i = 0; i < SetjmpRetPHIs.size(); i++) {
-        SI->addCase(IRB.getInt32(i + 1), SetjmpRetPHIs[i]->getParent());
-        SetjmpRetPHIs[i]->addIncoming(LongjmpResult, EndBB);
+      for (unsigned I = 0; I < SetjmpRetPHIs.size(); I++) {
+        SI->addCase(IRB.getInt32(I + 1), SetjmpRetPHIs[I]->getParent());
+        SetjmpRetPHIs[I]->addIncoming(LongjmpResult, EndBB);
       }
 
       // We are splitting the block here, and must continue to find other calls
       // in the block - which is now split. so continue to traverse in the Tail
       BBs.push_back(Tail);
     }
   }
 
for (Instruction *I : SetjmpTableSizeInsts)
     SetjmpTableSizeSSA.AddAvailableValue(I->getParent(), I);
 
   for (auto UI = SetjmpTable->use_begin(), UE = SetjmpTable->use_end();
        UI != UE;) {
     // Grab the use before incrementing the iterator.
     Use &U = *UI;
     // Increment the iterator before removing the use from the list.
     ++UI;
-    if (Instruction *I = dyn_cast<Instruction>(U.getUser()))
+    if (auto *I = dyn_cast<Instruction>(U.getUser()))
       if (I->getParent() != &EntryBB)
         SetjmpTableSSA.RewriteUse(U);
   }
   for (auto UI = SetjmpTableSize->use_begin(), UE = SetjmpTableSize->use_end();
        UI != UE;) {
     Use &U = *UI;
     ++UI;
-    if (Instruction *I = dyn_cast<Instruction>(U.getUser()))
+    if (auto *I = dyn_cast<Instruction>(U.getUser()))
       if (I->getParent() != &EntryBB)
         SetjmpTableSizeSSA.RewriteUse(U);
   }
 
   // Finally, our modifications to the cfg can break dominance of SSA variables.
   // For example, in this code,
   // if (x()) { .. setjmp() .. }
   // if (y()) { .. longjmp() .. }

lib/Target/WebAssembly/WebAssemblyLowerGlobalDtors.cpp

bool LowerGlobalDtors::runOnModule(Module &M) {
   if (!GV)
     return false;
 
   const ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
   if (!InitList)
     return false;
 
   // Sanity-check @llvm.global_dtor's type.
-  StructType *ETy = dyn_cast<StructType>(InitList->getType()->getElementType());
+  auto *ETy = dyn_cast<StructType>(InitList->getType()->getElementType());
   if (!ETy || ETy->getNumElements() != 3 ||
       !ETy->getTypeAtIndex(0U)->isIntegerTy() ||
       !ETy->getTypeAtIndex(1U)->isPointerTy() ||
       !ETy->getTypeAtIndex(2U)->isPointerTy())
     return false; // Not (int, ptr, ptr).
 
   // Collect the contents of @llvm.global_dtors, collated by priority and
   // associated symbol.
   std::map<uint16_t, MapVector<Constant *, std::vector<Constant *>>> DtorFuncs;
   for (Value *O : InitList->operands()) {
-    ConstantStruct *CS = dyn_cast<ConstantStruct>(O);
+    auto *CS = dyn_cast<ConstantStruct>(O);
     if (!CS)
       continue; // Malformed.
 
-    ConstantInt *Priority = dyn_cast<ConstantInt>(CS->getOperand(0));
+    auto *Priority = dyn_cast<ConstantInt>(CS->getOperand(0));
     if (!Priority)
       continue; // Malformed.
     uint16_t PriorityValue = Priority->getLimitedValue(UINT16_MAX);
 
     Constant *DtorFunc = CS->getOperand(1);
     if (DtorFunc->isNullValue())
       break; // Found a null terminator, skip the rest.
 

lib/Target/WebAssembly/WebAssemblyMCInstLower.h

 
 /// This class is used to lower an MachineInstr into an MCInst.
 class LLVM_LIBRARY_VISIBILITY WebAssemblyMCInstLower {
   MCContext &Ctx;
   WebAssemblyAsmPrinter &Printer;
 
   MCSymbol *GetGlobalAddressSymbol(const MachineOperand &MO) const;
   MCSymbol *GetExternalSymbolSymbol(const MachineOperand &MO) const;
-  MCOperand LowerSymbolOperand(MCSymbol *Sym, int64_t Offset, bool IsFunc,
+  MCOperand lowerSymbolOperand(MCSymbol *Sym, int64_t Offset, bool IsFunc,
                                bool IsGlob, bool IsEvent) const;
 
 public:
   WebAssemblyMCInstLower(MCContext &ctx, WebAssemblyAsmPrinter &printer)
       : Ctx(ctx), Printer(printer) {}
-  void Lower(const MachineInstr *MI, MCInst &OutMI) const;
+  void lower(const MachineInstr *MI, MCInst &OutMI) const;
 };
 } // end namespace llvm
 
 #endif

lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp

WasmKeepRegisters("wasm-keep-registers", cl::Hidden,
                                " instruction output for test purposes only."),
                       cl::init(false));
 
 static void removeRegisterOperands(const MachineInstr *MI, MCInst &OutMI);
 
 MCSymbol *
 WebAssemblyMCInstLower::GetGlobalAddressSymbol(const MachineOperand &MO) const {
   const GlobalValue *Global = MO.getGlobal();
-  MCSymbolWasm *WasmSym = cast<MCSymbolWasm>(Printer.getSymbol(Global));
+  auto *WasmSym = cast<MCSymbolWasm>(Printer.getSymbol(Global));
 
   if (const auto *FuncTy = dyn_cast<FunctionType>(Global->getValueType())) {
     const MachineFunction &MF = *MO.getParent()->getParent()->getParent();
     const TargetMachine &TM = MF.getTarget();
     const Function &CurrentFunc = MF.getFunction();
 
     SmallVector<MVT, 1> ResultMVTs;
     SmallVector<MVT, 4> ParamMVTs;
-    ComputeSignatureVTs(FuncTy, CurrentFunc, TM, ParamMVTs, ResultMVTs);
+    computeSignatureVTs(FuncTy, CurrentFunc, TM, ParamMVTs, ResultMVTs);
 
-    auto Signature = SignatureFromMVTs(ResultMVTs, ParamMVTs);
+    auto Signature = signatureFromMVTs(ResultMVTs, ParamMVTs);
     WasmSym->setSignature(Signature.get());
     Printer.addSignature(std::move(Signature));
     WasmSym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
   }
 
   return WasmSym;
 }
 
 MCSymbol *WebAssemblyMCInstLower::GetExternalSymbolSymbol(
     const MachineOperand &MO) const {
   const char *Name = MO.getSymbolName();
-  MCSymbolWasm *WasmSym =
-      cast<MCSymbolWasm>(Printer.GetExternalSymbolSymbol(Name));
+  auto *WasmSym = cast<MCSymbolWasm>(Printer.GetExternalSymbolSymbol(Name));
   const WebAssemblySubtarget &Subtarget = Printer.getSubtarget();
 
   // Except for the two exceptions (__stack_pointer and __cpp_exception), all
   // other external symbols used by CodeGen are functions. It's OK to hardcode
   // knowledge of specific symbols here; this method is precisely there for
   // fetching the signatures of known Clang-provided symbols.
   if (strcmp(Name, "__stack_pointer") == 0) {
     WasmSym->setType(wasm::WASM_SYMBOL_TYPE_GLOBAL);
if (strcmp(Name, "__cpp_exception") == 0) {
     // All C++ exceptions are assumed to have a single i32 (for wasm32) or i64
     // (for wasm64) param type and void return type. The reaon is, all C++
     // exception values are pointers, and to share the type section with
     // functions, exceptions are assumed to have void return type.
     Params.push_back(Subtarget.hasAddr64() ? wasm::ValType::I64
                                            : wasm::ValType::I32);
   } else { // Function symbols
     WasmSym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
-    GetLibcallSignature(Subtarget, Name, Returns, Params);
+    getLibcallSignature(Subtarget, Name, Returns, Params);
   }
   auto Signature =
       make_unique<wasm::WasmSignature>(std::move(Returns), std::move(Params));
   WasmSym->setSignature(Signature.get());
   Printer.addSignature(std::move(Signature));
 
   return WasmSym;
 }
 
-MCOperand WebAssemblyMCInstLower::LowerSymbolOperand(MCSymbol *Sym,
+MCOperand WebAssemblyMCInstLower::lowerSymbolOperand(MCSymbol *Sym,
                                                      int64_t Offset,
                                                      bool IsFunc, bool IsGlob,
                                                      bool IsEvent) const {
   MCSymbolRefExpr::VariantKind VK =
       IsFunc ? MCSymbolRefExpr::VK_WebAssembly_FUNCTION
              : IsGlob ? MCSymbolRefExpr::VK_WebAssembly_GLOBAL
                       : IsEvent ? MCSymbolRefExpr::VK_WebAssembly_EVENT
                                 : MCSymbolRefExpr::VK_None;
if (RC == &WebAssembly::F32RegClass)
     return wasm::ValType::F32;
   if (RC == &WebAssembly::F64RegClass)
     return wasm::ValType::F64;
   if (RC == &WebAssembly::V128RegClass)
     return wasm::ValType::V128;
   llvm_unreachable("Unexpected register class");
 }
 
-void WebAssemblyMCInstLower::Lower(const MachineInstr *MI,
+void WebAssemblyMCInstLower::lower(const MachineInstr *MI,
                                    MCInst &OutMI) const {
   OutMI.setOpcode(MI->getOpcode());
 
   const MCInstrDesc &Desc = MI->getDesc();
-  for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
-    const MachineOperand &MO = MI->getOperand(i);
+  for (unsigned I = 0, E = MI->getNumOperands(); I != E; ++I) {
+    const MachineOperand &MO = MI->getOperand(I);
 
     MCOperand MCOp;
     switch (MO.getType()) {
     default:
       MI->print(errs());
       llvm_unreachable("unknown operand type");
     case MachineOperand::MO_MachineBasicBlock:
       MI->print(errs());
       llvm_unreachable("MachineBasicBlock operand should have been rewritten");
     case MachineOperand::MO_Register: {
       // Ignore all implicit register operands.
       if (MO.isImplicit())
         continue;
       const WebAssemblyFunctionInfo &MFI =
           *MI->getParent()->getParent()->getInfo<WebAssemblyFunctionInfo>();
       unsigned WAReg = MFI.getWAReg(MO.getReg());
       MCOp = MCOperand::createReg(WAReg);
       break;
     }
     case MachineOperand::MO_Immediate:
-      if (i < Desc.NumOperands) {
-        const MCOperandInfo &Info = Desc.OpInfo[i];
+      if (I < Desc.NumOperands) {
+        const MCOperandInfo &Info = Desc.OpInfo[I];
         if (Info.OperandType == WebAssembly::OPERAND_TYPEINDEX) {
           MCSymbol *Sym = Printer.createTempSymbol("typeindex");
 
           SmallVector<wasm::ValType, 4> Returns;
           SmallVector<wasm::ValType, 4> Params;
 
           const MachineRegisterInfo &MRI =
               MI->getParent()->getParent()->getRegInfo();
           for (const MachineOperand &MO : MI->defs())
             Returns.push_back(getType(MRI.getRegClass(MO.getReg())));
           for (const MachineOperand &MO : MI->explicit_uses())
             if (MO.isReg())
               Params.push_back(getType(MRI.getRegClass(MO.getReg())));
 
           // call_indirect instructions have a callee operand at the end which
           // doesn't count as a param.
           if (WebAssembly::isCallIndirect(*MI))
             Params.pop_back();
 
-          MCSymbolWasm *WasmSym = cast<MCSymbolWasm>(Sym);
+          auto *WasmSym = cast<MCSymbolWasm>(Sym);
           auto Signature = make_unique<wasm::WasmSignature>(std::move(Returns),
                                                             std::move(Params));
           WasmSym->setSignature(Signature.get());
           Printer.addSignature(std::move(Signature));
           WasmSym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
 
           const MCExpr *Expr = MCSymbolRefExpr::create(
               WasmSym, MCSymbolRefExpr::VK_WebAssembly_TYPEINDEX, Ctx);
case MachineOperand::MO_FPImmediate: {
         MCOp = MCOperand::createFPImm(Imm->getValueAPF().convertToDouble());
       else
         llvm_unreachable("unknown floating point immediate type");
       break;
     }
     case MachineOperand::MO_GlobalAddress:
       assert(MO.getTargetFlags() == WebAssemblyII::MO_NO_FLAG &&
              "WebAssembly does not use target flags on GlobalAddresses");
-      MCOp = LowerSymbolOperand(GetGlobalAddressSymbol(MO), MO.getOffset(),
+      MCOp = lowerSymbolOperand(GetGlobalAddressSymbol(MO), MO.getOffset(),
                                 MO.getGlobal()->getValueType()->isFunctionTy(),
                                 false, false);
       break;
     case MachineOperand::MO_ExternalSymbol:
       // The target flag indicates whether this is a symbol for a
       // variable or a function.
       assert((MO.getTargetFlags() & ~WebAssemblyII::MO_SYMBOL_MASK) == 0 &&
              "WebAssembly uses only symbol flags on ExternalSymbols");
-      MCOp = LowerSymbolOperand(
+      MCOp = lowerSymbolOperand(
           GetExternalSymbolSymbol(MO), /*Offset=*/0,
           (MO.getTargetFlags() & WebAssemblyII::MO_SYMBOL_FUNCTION) != 0,
           (MO.getTargetFlags() & WebAssemblyII::MO_SYMBOL_GLOBAL) != 0,
           (MO.getTargetFlags() & WebAssemblyII::MO_SYMBOL_EVENT) != 0);
       break;
     case MachineOperand::MO_MCSymbol:
       // This is currently used only for LSDA symbols (GCC_except_table),
       // because global addresses or other external symbols are handled above.
       assert(MO.getTargetFlags() == 0 &&
              "WebAssembly does not use target flags on MCSymbol");
-      MCOp = LowerSymbolOperand(MO.getMCSymbol(), /*Offset=*/0, false, false,
+      MCOp = lowerSymbolOperand(MO.getMCSymbol(), /*Offset=*/0, false, false,
                                 false);
       break;
     }
 
     OutMI.addOperand(MCOp);
   }
 
   if (!WasmKeepRegisters)

lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.h

public:
 
   // For a given stackified WAReg, return the id number to print with push/pop.
   static unsigned getWARegStackId(unsigned Reg) {
     assert(Reg & INT32_MIN);
     return Reg & INT32_MAX;
   }
 };
 
-void ComputeLegalValueVTs(const Function &F, const TargetMachine &TM, Type *Ty,
+void computeLegalValueVTs(const Function &F, const TargetMachine &TM, Type *Ty,
                           SmallVectorImpl<MVT> &ValueVTs);
 
 // Compute the signature for a given FunctionType (Ty). Note that it's not the
 // signature for F (F is just used to get varous context)
-void ComputeSignatureVTs(const FunctionType *Ty, const Function &F,
+void computeSignatureVTs(const FunctionType *Ty, const Function &F,
                          const TargetMachine &TM, SmallVectorImpl<MVT> &Params,
                          SmallVectorImpl<MVT> &Results);
 
-void ValTypesFromMVTs(const ArrayRef<MVT> &In,
+void valTypesFromMVTs(const ArrayRef<MVT> &In,
                       SmallVectorImpl<wasm::ValType> &Out);
 
 std::unique_ptr<wasm::WasmSignature>
-SignatureFromMVTs(const SmallVectorImpl<MVT> &Results,
+signatureFromMVTs(const SmallVectorImpl<MVT> &Results,
                   const SmallVectorImpl<MVT> &Params);
 
 } // end namespace llvm
 
 #endif

lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp

 //===----------------------------------------------------------------------===//
 
 #include "WebAssemblyMachineFunctionInfo.h"
 #include "WebAssemblyISelLowering.h"
 #include "WebAssemblySubtarget.h"
 #include "llvm/CodeGen/Analysis.h"
 using namespace llvm;
 
-WebAssemblyFunctionInfo::~WebAssemblyFunctionInfo() {}
+WebAssemblyFunctionInfo::~WebAssemblyFunctionInfo() = default; // anchor.
 
 void WebAssemblyFunctionInfo::initWARegs() {
   assert(WARegs.empty());
   unsigned Reg = UnusedReg;
   WARegs.resize(MF.getRegInfo().getNumVirtRegs(), Reg);
 }
 
-void llvm::ComputeLegalValueVTs(const Function &F, const TargetMachine &TM,
+void llvm::computeLegalValueVTs(const Function &F, const TargetMachine &TM,
                                 Type *Ty, SmallVectorImpl<MVT> &ValueVTs) {
   const DataLayout &DL(F.getParent()->getDataLayout());
   const WebAssemblyTargetLowering &TLI =
       *TM.getSubtarget<WebAssemblySubtarget>(F).getTargetLowering();
   SmallVector<EVT, 4> VTs;
   ComputeValueVTs(TLI, DL, Ty, VTs);
 
   for (EVT VT : VTs) {
     unsigned NumRegs = TLI.getNumRegisters(F.getContext(), VT);
     MVT RegisterVT = TLI.getRegisterType(F.getContext(), VT);
-    for (unsigned i = 0; i != NumRegs; ++i)
+    for (unsigned I = 0; I != NumRegs; ++I)
       ValueVTs.push_back(RegisterVT);
   }
 }
 
-void llvm::ComputeSignatureVTs(const FunctionType *Ty, const Function &F,
+void llvm::computeSignatureVTs(const FunctionType *Ty, const Function &F,
                                const TargetMachine &TM,
                                SmallVectorImpl<MVT> &Params,
                                SmallVectorImpl<MVT> &Results) {
-  ComputeLegalValueVTs(F, TM, Ty->getReturnType(), Results);
+  computeLegalValueVTs(F, TM, Ty->getReturnType(), Results);
 
   MVT PtrVT = MVT::getIntegerVT(TM.createDataLayout().getPointerSizeInBits());
   if (Results.size() > 1) {
     // WebAssembly currently can't lower returns of multiple values without
     // demoting to sret (see WebAssemblyTargetLowering::CanLowerReturn). So
     // replace multiple return values with a pointer parameter.
     Results.clear();
     Params.push_back(PtrVT);
   }
 
   for (auto *Param : Ty->params())
-    ComputeLegalValueVTs(F, TM, Param, Params);
+    computeLegalValueVTs(F, TM, Param, Params);
   if (Ty->isVarArg())
     Params.push_back(PtrVT);
 }
 
-void llvm::ValTypesFromMVTs(const ArrayRef<MVT> &In,
+void llvm::valTypesFromMVTs(const ArrayRef<MVT> &In,
                             SmallVectorImpl<wasm::ValType> &Out) {
   for (MVT Ty : In)
     Out.push_back(WebAssembly::toValType(Ty));
 }
 
 std::unique_ptr<wasm::WasmSignature>
-llvm::SignatureFromMVTs(const SmallVectorImpl<MVT> &Results,
+llvm::signatureFromMVTs(const SmallVectorImpl<MVT> &Results,
                         const SmallVectorImpl<MVT> &Params) {
   auto Sig = make_unique<wasm::WasmSignature>();
-  ValTypesFromMVTs(Results, Sig->Returns);
-  ValTypesFromMVTs(Params, Sig->Params);
+  valTypesFromMVTs(Results, Sig->Returns);
+  valTypesFromMVTs(Params, Sig->Params);
   return Sig;
 }

lib/Target/WebAssembly/WebAssemblyMemIntrinsicResults.cpp

INITIALIZE_PASS(WebAssemblyMemIntrinsicResults, DEBUG_TYPE,
                 "Optimize memory intrinsic result values for WebAssembly",
                 false, false)
 
 FunctionPass *llvm::createWebAssemblyMemIntrinsicResults() {
   return new WebAssemblyMemIntrinsicResults();
 }
 
 // Replace uses of FromReg with ToReg if they are dominated by MI.
-static bool ReplaceDominatedUses(MachineBasicBlock &MBB, MachineInstr &MI,
+static bool replaceDominatedUses(MachineBasicBlock &MBB, MachineInstr &MI,
                                  unsigned FromReg, unsigned ToReg,
                                  const MachineRegisterInfo &MRI,
                                  MachineDominatorTree &MDT,
                                  LiveIntervals &LIS) {
   bool Changed = false;
 
   LiveInterval *FromLI = &LIS.getInterval(FromReg);
   LiveInterval *ToLI = &LIS.getInterval(ToReg);
static bool optimizeCall(MachineBasicBlock &MBB, MachineInstr &MI,
                          MachineDominatorTree &MDT, LiveIntervals &LIS,
                          const WebAssemblyTargetLowering &TLI,
                          const TargetLibraryInfo &LibInfo) {
   MachineOperand &Op1 = MI.getOperand(1);
   if (!Op1.isSymbol())
     return false;
 
   StringRef Name(Op1.getSymbolName());
-  bool callReturnsInput = Name == TLI.getLibcallName(RTLIB::MEMCPY) ||
+  bool CallReturnsInput = Name == TLI.getLibcallName(RTLIB::MEMCPY) ||
                           Name == TLI.getLibcallName(RTLIB::MEMMOVE) ||
                           Name == TLI.getLibcallName(RTLIB::MEMSET);
-  if (!callReturnsInput)
+  if (!CallReturnsInput)
     return false;
 
   LibFunc Func;
   if (!LibInfo.getLibFunc(Name, Func))
     return false;
 
   unsigned FromReg = MI.getOperand(2).getReg();
   unsigned ToReg = MI.getOperand(0).getReg();
   if (MRI.getRegClass(FromReg) != MRI.getRegClass(ToReg))
     report_fatal_error("Memory Intrinsic results: call to builtin function "
                        "with wrong signature, from/to mismatch");
-  return ReplaceDominatedUses(MBB, MI, FromReg, ToReg, MRI, MDT, LIS);
+  return replaceDominatedUses(MBB, MI, FromReg, ToReg, MRI, MDT, LIS);
 }
 
 bool WebAssemblyMemIntrinsicResults::runOnMachineFunction(MachineFunction &MF) {
   LLVM_DEBUG({
     dbgs() << "********** Memory Intrinsic Results **********\n"
            << "********** Function: " << MF.getName() << '\n';
   });
 
   MachineRegisterInfo &MRI = MF.getRegInfo();
-  MachineDominatorTree &MDT = getAnalysis<MachineDominatorTree>();
+  auto &MDT = getAnalysis<MachineDominatorTree>();
   const WebAssemblyTargetLowering &TLI =
       *MF.getSubtarget<WebAssemblySubtarget>().getTargetLowering();
   const auto &LibInfo = getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
-  LiveIntervals &LIS = getAnalysis<LiveIntervals>();
+  auto &LIS = getAnalysis<LiveIntervals>();
   bool Changed = false;
 
   // We don't preserve SSA form.
   MRI.leaveSSA();
 
   assert(MRI.tracksLiveness() &&
          "MemIntrinsicResults expects liveness tracking");
 

lib/Target/WebAssembly/WebAssemblyOptimizeLiveIntervals.cpp

 
 bool WebAssemblyOptimizeLiveIntervals::runOnMachineFunction(
     MachineFunction &MF) {
   LLVM_DEBUG(dbgs() << "********** Optimize LiveIntervals **********\n"
                        "********** Function: "
                     << MF.getName() << '\n');
 
   MachineRegisterInfo &MRI = MF.getRegInfo();
-  LiveIntervals &LIS = getAnalysis<LiveIntervals>();
+  auto &LIS = getAnalysis<LiveIntervals>();
 
   // We don't preserve SSA form.
   MRI.leaveSSA();
 
   assert(MRI.tracksLiveness() && "OptimizeLiveIntervals expects liveness");
 
   // Split multiple-VN LiveIntervals into multiple LiveIntervals.
   SmallVector<LiveInterval *, 4> SplitLIs;
-  for (unsigned i = 0, e = MRI.getNumVirtRegs(); i < e; ++i) {
-    unsigned Reg = TargetRegisterInfo::index2VirtReg(i);
+  for (unsigned I = 0, E = MRI.getNumVirtRegs(); I < E; ++I) {
+    unsigned Reg = TargetRegisterInfo::index2VirtReg(I);
     if (MRI.reg_nodbg_empty(Reg))
       continue;
 
     LIS.splitSeparateComponents(LIS.getInterval(Reg), SplitLIs);
     SplitLIs.clear();
   }
 
   // In PrepareForLiveIntervals, we conservatively inserted IMPLICIT_DEF

lib/Target/WebAssembly/WebAssemblyOptimizeReturned.cpp

void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesCFG();
     AU.addRequired<DominatorTreeWrapperPass>();
     AU.addPreserved<DominatorTreeWrapperPass>();
     FunctionPass::getAnalysisUsage(AU);
   }
 
   bool runOnFunction(Function &F) override;
 
-  DominatorTree *DT;
+  DominatorTree *DT = nullptr;
 
 public:
   static char ID;
-  OptimizeReturned() : FunctionPass(ID), DT(nullptr) {}
+  OptimizeReturned() : FunctionPass(ID) {}
 
   void visitCallSite(CallSite CS);
 };
 } // End anonymous namespace
 
 char OptimizeReturned::ID = 0;
 INITIALIZE_PASS(OptimizeReturned, DEBUG_TYPE,
                 "Optimize calls with \"returned\" attributes for WebAssembly",
                 false, false)
 
 FunctionPass *llvm::createWebAssemblyOptimizeReturned() {
   return new OptimizeReturned();
 }
 
 void OptimizeReturned::visitCallSite(CallSite CS) {
-  for (unsigned i = 0, e = CS.getNumArgOperands(); i < e; ++i)
-    if (CS.paramHasAttr(i, Attribute::Returned)) {
+  for (unsigned I = 0, E = CS.getNumArgOperands(); I < E; ++I)
+    if (CS.paramHasAttr(I, Attribute::Returned)) {
       Instruction *Inst = CS.getInstruction();
-      Value *Arg = CS.getArgOperand(i);
+      Value *Arg = CS.getArgOperand(I);
       // Ignore constants, globals, undef, etc.
       if (isa<Constant>(Arg))
         continue;
       // Like replaceDominatedUsesWith but using Instruction/Use dominance.
       for (auto UI = Arg->use_begin(), UE = Arg->use_end(); UI != UE;) {
         Use &U = *UI++;
         if (DT->dominates(Inst, U))
           U.set(Inst);

lib/Target/WebAssembly/WebAssemblyPeephole.cpp

 INITIALIZE_PASS(WebAssemblyPeephole, DEBUG_TYPE,
                 "WebAssembly peephole optimizations", false, false)
 
 FunctionPass *llvm::createWebAssemblyPeephole() {
   return new WebAssemblyPeephole();
 }
 
 /// If desirable, rewrite NewReg to a drop register.
-static bool MaybeRewriteToDrop(unsigned OldReg, unsigned NewReg,
+static bool maybeRewriteToDrop(unsigned OldReg, unsigned NewReg,
                                MachineOperand &MO, WebAssemblyFunctionInfo &MFI,
                                MachineRegisterInfo &MRI) {
   bool Changed = false;
   if (OldReg == NewReg) {
     Changed = true;
     unsigned NewReg = MRI.createVirtualRegister(MRI.getRegClass(OldReg));
     MO.setReg(NewReg);
     MO.setIsDead();
     MFI.stackifyVReg(NewReg);
   }
   return Changed;
 }
 
-static bool MaybeRewriteToFallthrough(MachineInstr &MI, MachineBasicBlock &MBB,
+static bool maybeRewriteToFallthrough(MachineInstr &MI, MachineBasicBlock &MBB,
                                       const MachineFunction &MF,
                                       WebAssemblyFunctionInfo &MFI,
                                       MachineRegisterInfo &MRI,
                                       const WebAssemblyInstrInfo &TII,
                                       unsigned FallthroughOpc,
                                       unsigned CopyLocalOpc) {
   if (DisableWebAssemblyFallthroughReturnOpt)
     return false;
for (auto &MI : MBB)
                                    "wrong signature, not consuming reg");
               MachineOperand &MO = MI.getOperand(0);
               unsigned OldReg = MO.getReg();
               unsigned NewReg = Op2.getReg();
 
               if (MRI.getRegClass(NewReg) != MRI.getRegClass(OldReg))
                 report_fatal_error("Peephole: call to builtin function with "
                                    "wrong signature, from/to mismatch");
-              Changed |= MaybeRewriteToDrop(OldReg, NewReg, MO, MFI, MRI);
+              Changed |= maybeRewriteToDrop(OldReg, NewReg, MO, MFI, MRI);
             }
           }
         }
         break;
       }
       // Optimize away an explicit void return at the end of the function.
       case WebAssembly::RETURN_I32:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_I32,
             WebAssembly::COPY_I32);
         break;
       case WebAssembly::RETURN_I64:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_I64,
             WebAssembly::COPY_I64);
         break;
       case WebAssembly::RETURN_F32:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_F32,
             WebAssembly::COPY_F32);
         break;
       case WebAssembly::RETURN_F64:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_F64,
             WebAssembly::COPY_F64);
         break;
       case WebAssembly::RETURN_v16i8:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_v16i8,
             WebAssembly::COPY_V128);
         break;
       case WebAssembly::RETURN_v8i16:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_v8i16,
             WebAssembly::COPY_V128);
         break;
       case WebAssembly::RETURN_v4i32:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_v4i32,
             WebAssembly::COPY_V128);
         break;
       case WebAssembly::RETURN_v2i64:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_v2i64,
             WebAssembly::COPY_V128);
         break;
       case WebAssembly::RETURN_v4f32:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_v4f32,
             WebAssembly::COPY_V128);
         break;
       case WebAssembly::RETURN_v2f64:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_v2f64,
             WebAssembly::COPY_V128);
         break;
       case WebAssembly::RETURN_VOID:
-        Changed |= MaybeRewriteToFallthrough(
+        Changed |= maybeRewriteToFallthrough(
             MI, MBB, MF, MFI, MRI, TII, WebAssembly::FALLTHROUGH_RETURN_VOID,
             WebAssembly::INSTRUCTION_LIST_END);
         break;
       }
 
   return Changed;
 }

lib/Target/WebAssembly/WebAssemblyPrepareForLiveIntervals.cpp

 INITIALIZE_PASS(WebAssemblyPrepareForLiveIntervals, DEBUG_TYPE,
                 "Fix up code for LiveIntervals", false, false)
 
 FunctionPass *llvm::createWebAssemblyPrepareForLiveIntervals() {
   return new WebAssemblyPrepareForLiveIntervals();
 }
 
 // Test whether the given register has an ARGUMENT def.
-static bool HasArgumentDef(unsigned Reg, const MachineRegisterInfo &MRI) {
+static bool hasArgumentDef(unsigned Reg, const MachineRegisterInfo &MRI) {
   for (const auto &Def : MRI.def_instructions(Reg))
     if (WebAssembly::isArgument(Def))
       return true;
   return false;
 }
 
 bool WebAssemblyPrepareForLiveIntervals::runOnMachineFunction(
     MachineFunction &MF) {
bool WebAssemblyPrepareForLiveIntervals::runOnMachineFunction(
 
   // BranchFolding and perhaps other passes don't preserve IMPLICIT_DEF
   // instructions. LiveIntervals requires that all paths to virtual register
   // uses provide a definition. Insert IMPLICIT_DEFs in the entry block to
   // conservatively satisfy this.
   //
   // TODO: This is fairly heavy-handed; find a better approach.
   //
-  for (unsigned i = 0, e = MRI.getNumVirtRegs(); i < e; ++i) {
-    unsigned Reg = TargetRegisterInfo::index2VirtReg(i);
+  for (unsigned I = 0, E = MRI.getNumVirtRegs(); I < E; ++I) {
+    unsigned Reg = TargetRegisterInfo::index2VirtReg(I);
 
     // Skip unused registers.
     if (MRI.use_nodbg_empty(Reg))
       continue;
 
     // Skip registers that have an ARGUMENT definition.
-    if (HasArgumentDef(Reg, MRI))
+    if (hasArgumentDef(Reg, MRI))
       continue;
 
     BuildMI(Entry, Entry.begin(), DebugLoc(),
             TII.get(WebAssembly::IMPLICIT_DEF), Reg);
     Changed = true;
   }
 
   // Move ARGUMENT_* instructions to the top of the entry block, so that their

lib/Target/WebAssembly/WebAssemblyRegColoring.cpp

 FunctionPass *llvm::createWebAssemblyRegColoring() {
   return new WebAssemblyRegColoring();
 }
 
 // Compute the total spill weight for VReg.
 static float computeWeight(const MachineRegisterInfo *MRI,
                            const MachineBlockFrequencyInfo *MBFI,
                            unsigned VReg) {
-  float weight = 0.0f;
+  float Weight = 0.0f;
   for (MachineOperand &MO : MRI->reg_nodbg_operands(VReg))
-    weight += LiveIntervals::getSpillWeight(MO.isDef(), MO.isUse(), MBFI,
+    Weight += LiveIntervals::getSpillWeight(MO.isDef(), MO.isUse(), MBFI,
                                             *MO.getParent());
-  return weight;
+  return Weight;
 }
 
 bool WebAssemblyRegColoring::runOnMachineFunction(MachineFunction &MF) {
   LLVM_DEBUG({
     dbgs() << "********** Register Coloring **********\n"
            << "********** Function: " << MF.getName() << '\n';
   });
 
bool WebAssemblyRegColoring::runOnMachineFunction(MachineFunction &MF) {
   WebAssemblyFunctionInfo &MFI = *MF.getInfo<WebAssemblyFunctionInfo>();
 
   // Gather all register intervals into a list and sort them.
   unsigned NumVRegs = MRI->getNumVirtRegs();
   SmallVector<LiveInterval *, 0> SortedIntervals;
   SortedIntervals.reserve(NumVRegs);
 
   LLVM_DEBUG(dbgs() << "Interesting register intervals:\n");
-  for (unsigned i = 0; i < NumVRegs; ++i) {
-    unsigned VReg = TargetRegisterInfo::index2VirtReg(i);
+  for (unsigned I = 0; I < NumVRegs; ++I) {
+    unsigned VReg = TargetRegisterInfo::index2VirtReg(I);
     if (MFI.isVRegStackified(VReg))
       continue;
     // Skip unused registers, which can use $drop.
     if (MRI->use_empty(VReg))
       continue;
 
     LiveInterval *LI = &Liveness->getInterval(VReg);
     assert(LI->weight == 0.0f);
bool WebAssemblyRegColoring::runOnMachineFunction(MachineFunction &MF) {
   });
 
   LLVM_DEBUG(dbgs() << "Coloring register intervals:\n");
   SmallVector<unsigned, 16> SlotMapping(SortedIntervals.size(), -1u);
   SmallVector<SmallVector<LiveInterval *, 4>, 16> Assignments(
       SortedIntervals.size());
   BitVector UsedColors(SortedIntervals.size());
   bool Changed = false;
-  for (size_t i = 0, e = SortedIntervals.size(); i < e; ++i) {
-    LiveInterval *LI = SortedIntervals[i];
+  for (size_t I = 0, E = SortedIntervals.size(); I < E; ++I) {
+    LiveInterval *LI = SortedIntervals[I];
     unsigned Old = LI->reg;
-    size_t Color = i;
+    size_t Color = I;
     const TargetRegisterClass *RC = MRI->getRegClass(Old);
 
     // Check if it's possible to reuse any of the used colors.
     if (!MRI->isLiveIn(Old))
       for (unsigned C : UsedColors.set_bits()) {
         if (MRI->getRegClass(SortedIntervals[C]->reg) != RC)
           continue;
         for (LiveInterval *OtherLI : Assignments[C])
           if (!OtherLI->empty() && OtherLI->overlaps(*LI))
             goto continue_outer;
         Color = C;
         break;
       continue_outer:;
       }
 
     unsigned New = SortedIntervals[Color]->reg;
-    SlotMapping[i] = New;
+    SlotMapping[I] = New;
     Changed |= Old != New;
     UsedColors.set(Color);
     Assignments[Color].push_back(LI);
     LLVM_DEBUG(
         dbgs() << "Assigning vreg" << TargetRegisterInfo::virtReg2Index(LI->reg)
                << " to vreg" << TargetRegisterInfo::virtReg2Index(New) << "\n");
   }
   if (!Changed)
     return false;
 
   // Rewrite register operands.
-  for (size_t i = 0, e = SortedIntervals.size(); i < e; ++i) {
-    unsigned Old = SortedIntervals[i]->reg;
-    unsigned New = SlotMapping[i];
+  for (size_t I = 0, E = SortedIntervals.size(); I < E; ++I) {
+    unsigned Old = SortedIntervals[I]->reg;
+    unsigned New = SlotMapping[I];
     if (Old != New)
       MRI->replaceRegWith(Old, New);
   }
   return true;
 }

lib/Target/WebAssembly/WebAssemblyRegStackify.cpp

 
 FunctionPass *llvm::createWebAssemblyRegStackify() {
   return new WebAssemblyRegStackify();
 }
 
 // Decorate the given instruction with implicit operands that enforce the
 // expression stack ordering constraints for an instruction which is on
 // the expression stack.
-static void ImposeStackOrdering(MachineInstr *MI) {
+static void imposeStackOrdering(MachineInstr *MI) {
   // Write the opaque VALUE_STACK register.
   if (!MI->definesRegister(WebAssembly::VALUE_STACK))
     MI->addOperand(MachineOperand::CreateReg(WebAssembly::VALUE_STACK,
                                              /*isDef=*/true,
                                              /*isImp=*/true));
 
   // Also read the opaque VALUE_STACK register.
   if (!MI->readsRegister(WebAssembly::VALUE_STACK))
     MI->addOperand(MachineOperand::CreateReg(WebAssembly::VALUE_STACK,
                                              /*isDef=*/false,
                                              /*isImp=*/true));
 }
 
 // Convert an IMPLICIT_DEF instruction into an instruction which defines
 // a constant zero value.
-static void ConvertImplicitDefToConstZero(MachineInstr *MI,
+static void convertImplicitDefToConstZero(MachineInstr *MI,
                                           MachineRegisterInfo &MRI,
                                           const TargetInstrInfo *TII,
                                           MachineFunction &MF,
                                           LiveIntervals &LIS) {
   assert(MI->getOpcode() == TargetOpcode::IMPLICIT_DEF);
 
   const auto *RegClass = MRI.getRegClass(MI->getOperand(0).getReg());
   if (RegClass == &WebAssembly::I32RegClass) {
     MI->setDesc(TII->get(WebAssembly::CONST_I32));
     MI->addOperand(MachineOperand::CreateImm(0));
   } else if (RegClass == &WebAssembly::I64RegClass) {
     MI->setDesc(TII->get(WebAssembly::CONST_I64));
     MI->addOperand(MachineOperand::CreateImm(0));
   } else if (RegClass == &WebAssembly::F32RegClass) {
     MI->setDesc(TII->get(WebAssembly::CONST_F32));
-    ConstantFP *Val = cast<ConstantFP>(Constant::getNullValue(
+    auto *Val = cast<ConstantFP>(Constant::getNullValue(
         Type::getFloatTy(MF.getFunction().getContext())));
     MI->addOperand(MachineOperand::CreateFPImm(Val));
   } else if (RegClass == &WebAssembly::F64RegClass) {
     MI->setDesc(TII->get(WebAssembly::CONST_F64));
-    ConstantFP *Val = cast<ConstantFP>(Constant::getNullValue(
+    auto *Val = cast<ConstantFP>(Constant::getNullValue(
         Type::getDoubleTy(MF.getFunction().getContext())));
     MI->addOperand(MachineOperand::CreateFPImm(Val));
   } else if (RegClass == &WebAssembly::V128RegClass) {
     unsigned TempReg = MRI.createVirtualRegister(&WebAssembly::I32RegClass);
     MI->setDesc(TII->get(WebAssembly::SPLAT_v4i32));
     MI->addOperand(MachineOperand::CreateReg(TempReg, false));
     MachineInstr *Const = BuildMI(*MI->getParent(), MI, MI->getDebugLoc(),
                                   TII->get(WebAssembly::CONST_I32), TempReg)
                               .addImm(0);
     LIS.InsertMachineInstrInMaps(*Const);
   } else {
     llvm_unreachable("Unexpected reg class");
   }
 }
 
 // Determine whether a call to the callee referenced by
 // MI->getOperand(CalleeOpNo) reads memory, writes memory, and/or has side
 // effects.
-static void QueryCallee(const MachineInstr &MI, unsigned CalleeOpNo, bool &Read,
+static void queryCallee(const MachineInstr &MI, unsigned CalleeOpNo, bool &Read,
                         bool &Write, bool &Effects, bool &StackPointer) {
   // All calls can use the stack pointer.
   StackPointer = true;
 
   const MachineOperand &MO = MI.getOperand(CalleeOpNo);
   if (MO.isGlobal()) {
     const Constant *GV = MO.getGlobal();
-    if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(GV))
+    if (const auto *GA = dyn_cast<GlobalAlias>(GV))
       if (!GA->isInterposable())
         GV = GA->getAliasee();
 
-    if (const Function *F = dyn_cast<Function>(GV)) {
+    if (const auto *F = dyn_cast<Function>(GV)) {
       if (!F->doesNotThrow())
         Effects = true;
       if (F->doesNotAccessMemory())
         return;
       if (F->onlyReadsMemory()) {
         Read = true;
         return;
       }
     }
   }
 
   // Assume the worst.
   Write = true;
   Read = true;
   Effects = true;
 }
 
 // Determine whether MI reads memory, writes memory, has side effects,
 // and/or uses the stack pointer value.
-static void Query(const MachineInstr &MI, AliasAnalysis &AA, bool &Read,
+static void query(const MachineInstr &MI, AliasAnalysis &AA, bool &Read,
                   bool &Write, bool &Effects, bool &StackPointer) {
   assert(!MI.isTerminator());
 
   if (MI.isDebugInstr() || MI.isPosition())
     return;
 
   // Check for loads.
   if (MI.mayLoad() && !MI.isDereferenceableInvariantLoad(&AA))
static void query(const MachineInstr &MI, AliasAnalysis &AA, bool &Read,
   // Check for writes to __stack_pointer global.
   if (MI.getOpcode() == WebAssembly::GLOBAL_SET_I32 &&
       strcmp(MI.getOperand(0).getSymbolName(), "__stack_pointer") == 0)
     StackPointer = true;
 
   // Analyze calls.
   if (MI.isCall()) {
     unsigned CalleeOpNo = WebAssembly::getCalleeOpNo(MI);
-    QueryCallee(MI, CalleeOpNo, Read, Write, Effects, StackPointer);
+    queryCallee(MI, CalleeOpNo, Read, Write, Effects, StackPointer);
   }
 }
 
 // Test whether Def is safe and profitable to rematerialize.
-static bool ShouldRematerialize(const MachineInstr &Def, AliasAnalysis &AA,
+static bool shouldRematerialize(const MachineInstr &Def, AliasAnalysis &AA,
                                 const WebAssemblyInstrInfo *TII) {
   return Def.isAsCheapAsAMove() && TII->isTriviallyReMaterializable(Def, &AA);
 }
 
 // Identify the definition for this register at this point. This is a
 // generalization of MachineRegisterInfo::getUniqueVRegDef that uses
 // LiveIntervals to handle complex cases.
-static MachineInstr *GetVRegDef(unsigned Reg, const MachineInstr *Insert,
+static MachineInstr *getVRegDef(unsigned Reg, const MachineInstr *Insert,
                                 const MachineRegisterInfo &MRI,
                                 const LiveIntervals &LIS) {
   // Most registers are in SSA form here so we try a quick MRI query first.
   if (MachineInstr *Def = MRI.getUniqueVRegDef(Reg))
     return Def;
 
   // MRI doesn't know what the Def is. Try asking LIS.
   if (const VNInfo *ValNo = LIS.getInterval(Reg).getVNInfoBefore(
           LIS.getInstructionIndex(*Insert)))
     return LIS.getInstructionFromIndex(ValNo->def);
 
   return nullptr;
 }
 
 // Test whether Reg, as defined at Def, has exactly one use. This is a
 // generalization of MachineRegisterInfo::hasOneUse that uses LiveIntervals
 // to handle complex cases.
-static bool HasOneUse(unsigned Reg, MachineInstr *Def, MachineRegisterInfo &MRI,
+static bool hasOneUse(unsigned Reg, MachineInstr *Def, MachineRegisterInfo &MRI,
                       MachineDominatorTree &MDT, LiveIntervals &LIS) {
   // Most registers are in SSA form here so we try a quick MRI query first.
   if (MRI.hasOneUse(Reg))
     return true;
 
   bool HasOne = false;
   const LiveInterval &LI = LIS.getInterval(Reg);
   const VNInfo *DefVNI =
static bool hasOneUse(unsigned Reg, MachineInstr *Def, MachineRegisterInfo &MRI,
   return HasOne;
 }
 
 // Test whether it's safe to move Def to just before Insert.
 // TODO: Compute memory dependencies in a way that doesn't require always
 // walking the block.
 // TODO: Compute memory dependencies in a way that uses AliasAnalysis to be
 // more precise.
-static bool IsSafeToMove(const MachineInstr *Def, const MachineInstr *Insert,
+static bool isSafeToMove(const MachineInstr *Def, const MachineInstr *Insert,
                          AliasAnalysis &AA, const MachineRegisterInfo &MRI) {
   assert(Def->getParent() == Insert->getParent());
 
   // 'catch' and 'extract_exception' should be the first instruction of a BB and
   // cannot move.
   if (Def->getOpcode() == WebAssembly::CATCH ||
       Def->getOpcode() == WebAssembly::EXTRACT_EXCEPTION_I32) {
     const MachineBasicBlock *MBB = Def->getParent();
for (const MachineOperand &MO : Def->operands()) {
     // If one of the operands isn't in SSA form, it has different values at
     // different times, and we need to make sure we don't move our use across
     // a different def.
     if (!MO.isDef() && !MRI.hasOneDef(Reg))
       MutableRegisters.push_back(Reg);
   }
 
   bool Read = false, Write = false, Effects = false, StackPointer = false;
-  Query(*Def, AA, Read, Write, Effects, StackPointer);
+  query(*Def, AA, Read, Write, Effects, StackPointer);
 
   // If the instruction does not access memory and has no side effects, it has
   // no additional dependencies.
   bool HasMutableRegisters = !MutableRegisters.empty();
   if (!Read && !Write && !Effects && !StackPointer && !HasMutableRegisters)
     return true;
 
   // Scan through the intervening instructions between Def and Insert.
   MachineBasicBlock::const_iterator D(Def), I(Insert);
   for (--I; I != D; --I) {
     bool InterveningRead = false;
     bool InterveningWrite = false;
     bool InterveningEffects = false;
     bool InterveningStackPointer = false;
-    Query(*I, AA, InterveningRead, InterveningWrite, InterveningEffects,
+    query(*I, AA, InterveningRead, InterveningWrite, InterveningEffects,
           InterveningStackPointer);
     if (Effects && InterveningEffects)
       return false;
     if (Read && InterveningWrite)
       return false;
     if (Write && (InterveningRead || InterveningWrite))
       return false;
     if (StackPointer && InterveningStackPointer)
       return false;
 
     for (unsigned Reg : MutableRegisters)
       for (const MachineOperand &MO : I->operands())
         if (MO.isReg() && MO.isDef() && MO.getReg() == Reg)
           return false;
   }
 
   return true;
 }
 
 /// Test whether OneUse, a use of Reg, dominates all of Reg's other uses.
-static bool OneUseDominatesOtherUses(unsigned Reg, const MachineOperand &OneUse,
+static bool oneUseDominatesOtherUses(unsigned Reg, const MachineOperand &OneUse,
                                      const MachineBasicBlock &MBB,
                                      const MachineRegisterInfo &MRI,
                                      const MachineDominatorTree &MDT,
                                      LiveIntervals &LIS,
                                      WebAssemblyFunctionInfo &MFI) {
   const LiveInterval &LI = LIS.getInterval(Reg);
 
   const MachineInstr *OneUseInst = OneUse.getParent();
if (UseInst == OneUseInst) {
         UseInst = NewUseInst;
       }
     }
   }
   return true;
 }
 
 /// Get the appropriate tee opcode for the given register class.
-static unsigned GetTeeOpcode(const TargetRegisterClass *RC) {
+static unsigned getTeeOpcode(const TargetRegisterClass *RC) {
   if (RC == &WebAssembly::I32RegClass)
     return WebAssembly::TEE_I32;
   if (RC == &WebAssembly::I64RegClass)
     return WebAssembly::TEE_I64;
   if (RC == &WebAssembly::F32RegClass)
     return WebAssembly::TEE_F32;
   if (RC == &WebAssembly::F64RegClass)
     return WebAssembly::TEE_F64;
   if (RC == &WebAssembly::V128RegClass)
     return WebAssembly::TEE_V128;
   llvm_unreachable("Unexpected register class");
 }
 
 // Shrink LI to its uses, cleaning up LI.
-static void ShrinkToUses(LiveInterval &LI, LiveIntervals &LIS) {
+static void shrinkToUses(LiveInterval &LI, LiveIntervals &LIS) {
   if (LIS.shrinkToUses(&LI)) {
     SmallVector<LiveInterval *, 4> SplitLIs;
     LIS.splitSeparateComponents(LI, SplitLIs);
   }
 }
 
 /// A single-use def in the same block with no intervening memory or register
 /// dependencies; move the def down and nest it with the current instruction.
-static MachineInstr *MoveForSingleUse(unsigned Reg, MachineOperand &Op,
+static MachineInstr *moveForSingleUse(unsigned Reg, MachineOperand &Op,
                                       MachineInstr *Def, MachineBasicBlock &MBB,
                                       MachineInstr *Insert, LiveIntervals &LIS,
                                       WebAssemblyFunctionInfo &MFI,
                                       MachineRegisterInfo &MRI) {
   LLVM_DEBUG(dbgs() << "Move for single use: "; Def->dump());
 
   WebAssemblyDebugValueManager DefDIs(Def);
   MBB.splice(Insert, &MBB, Def);
if (MRI.hasOneDef(Reg) && MRI.hasOneUse(Reg)) {
 
     MFI.stackifyVReg(NewReg);
 
     DefDIs.updateReg(NewReg);
 
     LLVM_DEBUG(dbgs() << " - Replaced register: "; Def->dump());
   }
 
-  ImposeStackOrdering(Def);
+  imposeStackOrdering(Def);
   return Def;
 }
 
 /// A trivially cloneable instruction; clone it and nest the new copy with the
 /// current instruction.
-static MachineInstr *RematerializeCheapDef(
+static MachineInstr *rematerializeCheapDef(
     unsigned Reg, MachineOperand &Op, MachineInstr &Def, MachineBasicBlock &MBB,
     MachineBasicBlock::instr_iterator Insert, LiveIntervals &LIS,
     WebAssemblyFunctionInfo &MFI, MachineRegisterInfo &MRI,
     const WebAssemblyInstrInfo *TII, const WebAssemblyRegisterInfo *TRI) {
   LLVM_DEBUG(dbgs() << "Rematerializing cheap def: "; Def.dump());
   LLVM_DEBUG(dbgs() << " - for use in "; Op.getParent()->dump());
 
   WebAssemblyDebugValueManager DefDIs(&Def);
 
   unsigned NewReg = MRI.createVirtualRegister(MRI.getRegClass(Reg));
   TII->reMaterialize(MBB, Insert, NewReg, 0, Def, *TRI);
   Op.setReg(NewReg);
   MachineInstr *Clone = &*std::prev(Insert);
   LIS.InsertMachineInstrInMaps(*Clone);
   LIS.createAndComputeVirtRegInterval(NewReg);
   MFI.stackifyVReg(NewReg);
-  ImposeStackOrdering(Clone);
+  imposeStackOrdering(Clone);
 
   LLVM_DEBUG(dbgs() << " - Cloned to "; Clone->dump());
 
   // Shrink the interval.
   bool IsDead = MRI.use_empty(Reg);
   if (!IsDead) {
     LiveInterval &LI = LIS.getInterval(Reg);
-    ShrinkToUses(LI, LIS);
+    shrinkToUses(LI, LIS);
     IsDead = !LI.liveAt(LIS.getInstructionIndex(Def).getDeadSlot());
   }
 
   // If that was the last use of the original, delete the original.
   // Move or clone corresponding DBG_VALUEs to the 'Insert' location.
   if (IsDead) {
     LLVM_DEBUG(dbgs() << " - Deleting original\n");
     SlotIndex Idx = LIS.getInstructionIndex(Def).getRegSlot();

 ///    DefReg = INST ...     // Def (to become the new Insert)
 ///    TeeReg, Reg = TEE_... DefReg
 ///    INST ..., TeeReg, ... // Insert
 ///    INST ..., Reg, ...
 ///    INST ..., Reg, ...
 ///
 /// with DefReg and TeeReg stackified. This eliminates a local.get from the
 /// resulting code.
-static MachineInstr *MoveAndTeeForMultiUse(
+static MachineInstr *moveAndTeeForMultiUse(
     unsigned Reg, MachineOperand &Op, MachineInstr *Def, MachineBasicBlock &MBB,
     MachineInstr *Insert, LiveIntervals &LIS, WebAssemblyFunctionInfo &MFI,
     MachineRegisterInfo &MRI, const WebAssemblyInstrInfo *TII) {
   LLVM_DEBUG(dbgs() << "Move and tee for multi-use:"; Def->dump());
 
   WebAssemblyDebugValueManager DefDIs(Def);
 
   // Move Def into place.
   MBB.splice(Insert, &MBB, Def);
   LIS.handleMove(*Def);
 
   // Create the Tee and attach the registers.
   const auto *RegClass = MRI.getRegClass(Reg);
   unsigned TeeReg = MRI.createVirtualRegister(RegClass);
   unsigned DefReg = MRI.createVirtualRegister(RegClass);
   MachineOperand &DefMO = Def->getOperand(0);
   MachineInstr *Tee = BuildMI(MBB, Insert, Insert->getDebugLoc(),
-                              TII->get(GetTeeOpcode(RegClass)), TeeReg)
+                              TII->get(getTeeOpcode(RegClass)), TeeReg)
                           .addReg(Reg, RegState::Define)
                           .addReg(DefReg, getUndefRegState(DefMO.isDead()));
   Op.setReg(TeeReg);
   DefMO.setReg(DefReg);
   SlotIndex TeeIdx = LIS.InsertMachineInstrInMaps(*Tee).getRegSlot();
   SlotIndex DefIdx = LIS.getInstructionIndex(*Def).getRegSlot();
 
   DefDIs.move(Insert);
 
   // Tell LiveIntervals we moved the original vreg def from Def to Tee.
   LiveInterval &LI = LIS.getInterval(Reg);
   LiveInterval::iterator I = LI.FindSegmentContaining(DefIdx);
   VNInfo *ValNo = LI.getVNInfoAt(DefIdx);
   I->start = TeeIdx;
   ValNo->def = TeeIdx;
-  ShrinkToUses(LI, LIS);
+  shrinkToUses(LI, LIS);
 
   // Finish stackifying the new regs.
   LIS.createAndComputeVirtRegInterval(TeeReg);
   LIS.createAndComputeVirtRegInterval(DefReg);
   MFI.stackifyVReg(DefReg);
   MFI.stackifyVReg(TeeReg);
-  ImposeStackOrdering(Def);
-  ImposeStackOrdering(Tee);
+  imposeStackOrdering(Def);
+  imposeStackOrdering(Tee);
 
   DefDIs.clone(Tee, DefReg);
   DefDIs.clone(Insert, TeeReg);
 
   LLVM_DEBUG(dbgs() << " - Replaced register: "; Def->dump());
   LLVM_DEBUG(dbgs() << " - Tee instruction: "; Tee->dump());
   return Def;
 }
 
 namespace {
 /// A stack for walking the tree of instructions being built, visiting the
 /// MachineOperands in DFS order.
 class TreeWalkerState {
-  typedef MachineInstr::mop_iterator mop_iterator;
-  typedef std::reverse_iterator<mop_iterator> mop_reverse_iterator;
-  typedef iterator_range<mop_reverse_iterator> RangeTy;
+  using mop_iterator = MachineInstr::mop_iterator;
+  using mop_reverse_iterator = std::reverse_iterator<mop_iterator>;
+  using RangeTy = iterator_range<mop_reverse_iterator>;
   SmallVector<RangeTy, 4> Worklist;
 
 public:
   explicit TreeWalkerState(MachineInstr *Insert) {
     const iterator_range<mop_iterator> &Range = Insert->explicit_uses();
     if (Range.begin() != Range.end())
       Worklist.push_back(reverse(Range));
   }
 
-  bool Done() const { return Worklist.empty(); }
+  bool done() const { return Worklist.empty(); }
 
-  MachineOperand &Pop() {
+  MachineOperand &pop() {
     RangeTy &Range = Worklist.back();
     MachineOperand &Op = *Range.begin();
     Range = drop_begin(Range, 1);
     if (Range.begin() == Range.end())
       Worklist.pop_back();
     assert((Worklist.empty() ||
             Worklist.back().begin() != Worklist.back().end()) &&
            "Empty ranges shouldn't remain in the worklist");
     return Op;
   }
 
   /// Push Instr's operands onto the stack to be visited.
-  void PushOperands(MachineInstr *Instr) {
+  void pushOperands(MachineInstr *Instr) {
     const iterator_range<mop_iterator> &Range(Instr->explicit_uses());
     if (Range.begin() != Range.end())
       Worklist.push_back(reverse(Range));
   }
 
   /// Some of Instr's operands are on the top of the stack; remove them and
   /// re-insert them starting from the beginning (because we've commuted them).
-  void ResetTopOperands(MachineInstr *Instr) {
-    assert(HasRemainingOperands(Instr) &&
+  void resetTopOperands(MachineInstr *Instr) {
+    assert(hasRemainingOperands(Instr) &&
            "Reseting operands should only be done when the instruction has "
            "an operand still on the stack");
     Worklist.back() = reverse(Instr->explicit_uses());
   }
 
   /// Test whether Instr has operands remaining to be visited at the top of
   /// the stack.
-  bool HasRemainingOperands(const MachineInstr *Instr) const {
+  bool hasRemainingOperands(const MachineInstr *Instr) const {
     if (Worklist.empty())
       return false;
     const RangeTy &Range = Worklist.back();
     return Range.begin() != Range.end() && Range.begin()->getParent() == Instr;
   }
 
   /// Test whether the given register is present on the stack, indicating an
   /// operand in the tree that we haven't visited yet. Moving a definition of
   /// Reg to a point in the tree after that would change its value.
   ///
   /// This is needed as a consequence of using implicit local.gets for
   /// uses and implicit local.sets for defs.
-  bool IsOnStack(unsigned Reg) const {
+  bool isOnStack(unsigned Reg) const {
     for (const RangeTy &Range : Worklist)
       for (const MachineOperand &MO : Range)
         if (MO.isReg() && MO.getReg() == Reg)
           return true;
     return false;
   }
 };
 
 /// State to keep track of whether commuting is in flight or whether it's been
 /// tried for the current instruction and didn't work.
 class CommutingState {
   /// There are effectively three states: the initial state where we haven't
   /// started commuting anything and we don't know anything yet, the tentative
   /// state where we've commuted the operands of the current instruction and are
   /// revisiting it, and the declined state where we've reverted the operands
   /// back to their original order and will no longer commute it further.
-  bool TentativelyCommuting;
-  bool Declined;
+  bool TentativelyCommuting = false;
+  bool Declined = false;
 
   /// During the tentative state, these hold the operand indices of the commuted
   /// operands.
   unsigned Operand0, Operand1;
 
 public:
-  CommutingState() : TentativelyCommuting(false), Declined(false) {}
-
   /// Stackification for an operand was not successful due to ordering
   /// constraints. If possible, and if we haven't already tried it and declined
   /// it, commute Insert's operands and prepare to revisit it.
-  void MaybeCommute(MachineInstr *Insert, TreeWalkerState &TreeWalker,
+  void maybeCommute(MachineInstr *Insert, TreeWalkerState &TreeWalker,
                     const WebAssemblyInstrInfo *TII) {
     if (TentativelyCommuting) {
       assert(!Declined &&
              "Don't decline commuting until you've finished trying it");
       // Commuting didn't help. Revert it.
       TII->commuteInstruction(*Insert, /*NewMI=*/false, Operand0, Operand1);
       TentativelyCommuting = false;
       Declined = true;
-    } else if (!Declined && TreeWalker.HasRemainingOperands(Insert)) {
+    } else if (!Declined && TreeWalker.hasRemainingOperands(Insert)) {
       Operand0 = TargetInstrInfo::CommuteAnyOperandIndex;
       Operand1 = TargetInstrInfo::CommuteAnyOperandIndex;
       if (TII->findCommutedOpIndices(*Insert, Operand0, Operand1)) {
         // Tentatively commute the operands and try again.
         TII->commuteInstruction(*Insert, /*NewMI=*/false, Operand0, Operand1);
-        TreeWalker.ResetTopOperands(Insert);
+        TreeWalker.resetTopOperands(Insert);
         TentativelyCommuting = true;
         Declined = false;
       }
     }
   }
 
   /// Stackification for some operand was successful. Reset to the default
   /// state.
-  void Reset() {
+  void reset() {
     TentativelyCommuting = false;
     Declined = false;
   }
 };
 } // end anonymous namespace
 
 bool WebAssemblyRegStackify::runOnMachineFunction(MachineFunction &MF) {
   LLVM_DEBUG(dbgs() << "********** Register Stackifying **********\n"
                        "********** Function: "
                     << MF.getName() << '\n');
 
   bool Changed = false;
   MachineRegisterInfo &MRI = MF.getRegInfo();
   WebAssemblyFunctionInfo &MFI = *MF.getInfo<WebAssemblyFunctionInfo>();
   const auto *TII = MF.getSubtarget<WebAssemblySubtarget>().getInstrInfo();
   const auto *TRI = MF.getSubtarget<WebAssemblySubtarget>().getRegisterInfo();
   AliasAnalysis &AA = getAnalysis<AAResultsWrapperPass>().getAAResults();
-  MachineDominatorTree &MDT = getAnalysis<MachineDominatorTree>();
-  LiveIntervals &LIS = getAnalysis<LiveIntervals>();
+  auto &MDT = getAnalysis<MachineDominatorTree>();
+  auto &LIS = getAnalysis<LiveIntervals>();
 
   // Walk the instructions from the bottom up. Currently we don't look past
   // block boundaries, and the blocks aren't ordered so the block visitation
   // order isn't significant, but we may want to change this in the future.
   for (MachineBasicBlock &MBB : MF) {
     // Don't use a range-based for loop, because we modify the list as we're
     // iterating over it and the end iterator may change.
     for (auto MII = MBB.rbegin(); MII != MBB.rend(); ++MII) {
       MachineInstr *Insert = &*MII;
       // Don't nest anything inside an inline asm, because we don't have
       // constraints for $push inputs.
       if (Insert->getOpcode() == TargetOpcode::INLINEASM)
         continue;
 
       // Ignore debugging intrinsics.
       if (Insert->getOpcode() == TargetOpcode::DBG_VALUE)
         continue;
 
       // Iterate through the inputs in reverse order, since we'll be pulling
       // operands off the stack in LIFO order.
       CommutingState Commuting;
       TreeWalkerState TreeWalker(Insert);
-      while (!TreeWalker.Done()) {
-        MachineOperand &Op = TreeWalker.Pop();
+      while (!TreeWalker.done()) {
+        MachineOperand &Op = TreeWalker.pop();
 
         // We're only interested in explicit virtual register operands.
         if (!Op.isReg())
           continue;
 
         unsigned Reg = Op.getReg();
         assert(Op.isUse() && "explicit_uses() should only iterate over uses");
         assert(!Op.isImplicit() &&
                "explicit_uses() should only iterate over explicit operands");
         if (TargetRegisterInfo::isPhysicalRegister(Reg))
           continue;
 
         // Identify the definition for this register at this point.
-        MachineInstr *Def = GetVRegDef(Reg, Insert, MRI, LIS);
+        MachineInstr *Def = getVRegDef(Reg, Insert, MRI, LIS);
         if (!Def)
           continue;
 
         // Don't nest an INLINE_ASM def into anything, because we don't have
         // constraints for $pop outputs.
         if (Def->getOpcode() == TargetOpcode::INLINEASM)
           continue;
 
for (auto MII = MBB.rbegin(); MII != MBB.rend(); ++MII) {
 
         // Decide which strategy to take. Prefer to move a single-use value
         // over cloning it, and prefer cloning over introducing a tee.
         // For moving, we require the def to be in the same block as the use;
         // this makes things simpler (LiveIntervals' handleMove function only
         // supports intra-block moves) and it's MachineSink's job to catch all
         // the sinking opportunities anyway.
         bool SameBlock = Def->getParent() == &MBB;
-        bool CanMove = SameBlock && IsSafeToMove(Def, Insert, AA, MRI) &&
-                       !TreeWalker.IsOnStack(Reg);
-        if (CanMove && HasOneUse(Reg, Def, MRI, MDT, LIS)) {
-          Insert = MoveForSingleUse(Reg, Op, Def, MBB, Insert, LIS, MFI, MRI);
-        } else if (ShouldRematerialize(*Def, AA, TII)) {
+        bool CanMove = SameBlock && isSafeToMove(Def, Insert, AA, MRI) &&
+                       !TreeWalker.isOnStack(Reg);
+        if (CanMove && hasOneUse(Reg, Def, MRI, MDT, LIS)) {
+          Insert = moveForSingleUse(Reg, Op, Def, MBB, Insert, LIS, MFI, MRI);
+        } else if (shouldRematerialize(*Def, AA, TII)) {
           Insert =
-              RematerializeCheapDef(Reg, Op, *Def, MBB, Insert->getIterator(),
+              rematerializeCheapDef(Reg, Op, *Def, MBB, Insert->getIterator(),
                                     LIS, MFI, MRI, TII, TRI);
         } else if (CanMove &&
-                   OneUseDominatesOtherUses(Reg, Op, MBB, MRI, MDT, LIS, MFI)) {
-          Insert = MoveAndTeeForMultiUse(Reg, Op, Def, MBB, Insert, LIS, MFI,
+                   oneUseDominatesOtherUses(Reg, Op, MBB, MRI, MDT, LIS, MFI)) {
+          Insert = moveAndTeeForMultiUse(Reg, Op, Def, MBB, Insert, LIS, MFI,
                                          MRI, TII);
         } else {
           // We failed to stackify the operand. If the problem was ordering
           // constraints, Commuting may be able to help.
           if (!CanMove && SameBlock)
-            Commuting.MaybeCommute(Insert, TreeWalker, TII);
+            Commuting.maybeCommute(Insert, TreeWalker, TII);
           // Proceed to the next operand.
           continue;
         }
 
         // If the instruction we just stackified is an IMPLICIT_DEF, convert it
         // to a constant 0 so that the def is explicit, and the push/pop
         // correspondence is maintained.
         if (Insert->getOpcode() == TargetOpcode::IMPLICIT_DEF)
-          ConvertImplicitDefToConstZero(Insert, MRI, TII, MF, LIS);
+          convertImplicitDefToConstZero(Insert, MRI, TII, MF, LIS);
 
         // We stackified an operand. Add the defining instruction's operands to
         // the worklist stack now to continue to build an ever deeper tree.
-        Commuting.Reset();
-        TreeWalker.PushOperands(Insert);
+        Commuting.reset();
+        TreeWalker.pushOperands(Insert);
       }
 
       // If we stackified any operands, skip over the tree to start looking for
       // the next instruction we can build a tree on.
       if (Insert != &*MII) {
-        ImposeStackOrdering(&*MII);
+        imposeStackOrdering(&*MII);
         MII = MachineBasicBlock::iterator(Insert).getReverse();
         Changed = true;
       }
     }
   }
 
   // If we used VALUE_STACK anywhere, add it to the live-in sets everywhere so
   // that it never looks like a use-before-def.

lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.h

 #include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/CodeGen/RuntimeLibcalls.h"
 
 namespace llvm {
 
 class WebAssemblySubtarget;
 
-extern void GetLibcallSignature(const WebAssemblySubtarget &Subtarget,
+extern void getLibcallSignature(const WebAssemblySubtarget &Subtarget,
                                 RTLIB::Libcall LC,
                                 SmallVectorImpl<wasm::ValType> &Rets,
                                 SmallVectorImpl<wasm::ValType> &Params);
 
-extern void GetLibcallSignature(const WebAssemblySubtarget &Subtarget,
+extern void getLibcallSignature(const WebAssemblySubtarget &Subtarget,
                                 const char *Name,
                                 SmallVectorImpl<wasm::ValType> &Rets,
                                 SmallVectorImpl<wasm::ValType> &Params);
 
 } // end namespace llvm
 
 #endif

lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp

for (const auto &NameLibcall : NameLibcalls) {
         Map[NameLibcall.first] = NameLibcall.second;
       }
     }
   }
 };
 
 } // end anonymous namespace
 
-void llvm::GetLibcallSignature(const WebAssemblySubtarget &Subtarget,
+void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
                                RTLIB::Libcall LC,
                                SmallVectorImpl<wasm::ValType> &Rets,
                                SmallVectorImpl<wasm::ValType> &Params) {
   assert(Rets.empty());
   assert(Params.empty());
 
-  wasm::ValType iPTR =
+  wasm::ValType PtrTy =
       Subtarget.hasAddr64() ? wasm::ValType::I64 : wasm::ValType::I32;
 
   auto &Table = RuntimeLibcallSignatures->Table;
   switch (Table[LC]) {
   case func:
     break;
   case f32_func_f32:
     Rets.push_back(wasm::ValType::F32);
case i16_func_f32:
     break;
   case i8_func_i8_i8:
     Rets.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
     break;
   case func_f32_iPTR_iPTR:
     Params.push_back(wasm::ValType::F32);
-    Params.push_back(iPTR);
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
+    Params.push_back(PtrTy);
     break;
   case func_f64_iPTR_iPTR:
     Params.push_back(wasm::ValType::F64);
-    Params.push_back(iPTR);
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
+    Params.push_back(PtrTy);
     break;
   case i16_func_i16_i16:
     Rets.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
     break;
   case i32_func_f32_f32:
     Rets.push_back(wasm::ValType::I32);
case i32_func_i32_i32:
     Rets.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
     break;
   case i32_func_i32_i32_iPTR:
     Rets.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     break;
   case i64_func_i64_i64:
     Rets.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     break;
   case i64_func_i64_i64_iPTR:
     Rets.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     break;
   case i64_i64_func_f32:
 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
 #else
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
 #endif
     Params.push_back(wasm::ValType::F32);
     break;
   case i64_i64_func_f64:
 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
 #else
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
 #endif
     Params.push_back(wasm::ValType::F64);
     break;
   case i16_i16_func_i16_i16:
 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
     Rets.push_back(wasm::ValType::I32);
     Rets.push_back(wasm::ValType::I32);
 #else
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
 #endif
     Params.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
     break;
   case i32_i32_func_i32_i32:
 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
     Rets.push_back(wasm::ValType::I32);
     Rets.push_back(wasm::ValType::I32);
 #else
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
 #endif
     Params.push_back(wasm::ValType::I32);
     Params.push_back(wasm::ValType::I32);
     break;
   case i64_i64_func_i64_i64:
 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
 #else
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
 #endif
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     break;
   case i64_i64_func_i64_i64_i64_i64:
 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
 #else
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
 #endif
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     break;
   case i64_i64_func_i64_i64_i64_i64_iPTR:
 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
 #else
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
 #endif
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     break;
   case i64_i64_i64_i64_func_i64_i64_i64_i64:
 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
 #else
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
 #endif
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     break;
   case i64_i64_func_i64_i64_i32:
 #if 0 // TODO: Enable this when wasm gets multiple-return-value support.
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
     Rets.push_back(wasm::ValType::I64);
 #else
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
 #endif
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I32);
     break;
   case iPTR_func_iPTR_i32_iPTR:
-    Rets.push_back(iPTR);
-    Params.push_back(iPTR);
+    Rets.push_back(PtrTy);
+    Params.push_back(PtrTy);
     Params.push_back(wasm::ValType::I32);
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     break;
   case iPTR_func_iPTR_iPTR_iPTR:
-    Rets.push_back(iPTR);
-    Params.push_back(iPTR);
-    Params.push_back(iPTR);
-    Params.push_back(iPTR);
+    Rets.push_back(PtrTy);
+    Params.push_back(PtrTy);
+    Params.push_back(PtrTy);
+    Params.push_back(PtrTy);
     break;
   case f32_func_f32_f32_f32:
     Rets.push_back(wasm::ValType::F32);
     Params.push_back(wasm::ValType::F32);
     Params.push_back(wasm::ValType::F32);
     Params.push_back(wasm::ValType::F32);
     break;
   case f64_func_f64_f64_f64:
     Rets.push_back(wasm::ValType::F64);
     Params.push_back(wasm::ValType::F64);
     Params.push_back(wasm::ValType::F64);
     Params.push_back(wasm::ValType::F64);
     break;
   case func_i64_i64_iPTR_iPTR:
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
-    Params.push_back(iPTR);
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
+    Params.push_back(PtrTy);
     break;
   case func_iPTR_f32:
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     Params.push_back(wasm::ValType::F32);
     break;
   case func_iPTR_f64:
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     Params.push_back(wasm::ValType::F64);
     break;
   case func_iPTR_i32:
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     Params.push_back(wasm::ValType::I32);
     break;
   case func_iPTR_i64:
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     Params.push_back(wasm::ValType::I64);
     break;
   case func_iPTR_i64_i64:
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     break;
   case func_iPTR_i64_i64_i64_i64:
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     break;
   case func_iPTR_i64_i64_i64_i64_i64_i64:
-    Params.push_back(iPTR);
+    Params.push_back(PtrTy);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     Params.push_back(wasm::ValType::I64);
     break;
   case i32_func_i64_i64:
#endif
   case unsupported:
     llvm_unreachable("unsupported runtime library signature");
   }
 }
 
 static ManagedStatic<StaticLibcallNameMap> LibcallNameMap;
 // TODO: If the RTLIB::Libcall-taking flavor of GetSignature remains unsed
 // other than here, just roll its logic into this version.
-void llvm::GetLibcallSignature(const WebAssemblySubtarget &Subtarget,
+void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
                                const char *Name,
                                SmallVectorImpl<wasm::ValType> &Rets,
                                SmallVectorImpl<wasm::ValType> &Params) {
   auto &Map = LibcallNameMap->Map;
-  auto val = Map.find(Name);
-  assert(val != Map.end() && "unexpected runtime library name");
-  return GetLibcallSignature(Subtarget, val->second, Rets, Params);
+  auto Val = Map.find(Name);
+  assert(Val != Map.end() && "unexpected runtime library name");
+  return getLibcallSignature(Subtarget, Val->second, Rets, Params);
 }

lib/Target/WebAssembly/WebAssemblySelectionDAGInfo.cpp

 ///
 //===----------------------------------------------------------------------===//
 
 #include "WebAssemblyTargetMachine.h"
 using namespace llvm;
 
 #define DEBUG_TYPE "wasm-selectiondag-info"
 
-WebAssemblySelectionDAGInfo::~WebAssemblySelectionDAGInfo() {}
+WebAssemblySelectionDAGInfo::~WebAssemblySelectionDAGInfo() = default; // anchor

lib/Target/WebAssembly/WebAssemblySetP2AlignOperands.cpp

 INITIALIZE_PASS(WebAssemblySetP2AlignOperands, DEBUG_TYPE,
                 "Set the p2align operands for WebAssembly loads and stores",
                 false, false)
 
 FunctionPass *llvm::createWebAssemblySetP2AlignOperands() {
   return new WebAssemblySetP2AlignOperands();
 }
 
-static void RewriteP2Align(MachineInstr &MI, unsigned OperandNo) {
+static void rewriteP2Align(MachineInstr &MI, unsigned OperandNo) {
   assert(MI.getOperand(OperandNo).getImm() == 0 &&
          "ISel should set p2align operands to 0");
   assert(MI.hasOneMemOperand() &&
          "Load and store instructions have exactly one mem operand");
   assert((*MI.memoperands_begin())->getSize() ==
              (UINT64_C(1) << WebAssembly::GetDefaultP2Align(MI.getOpcode())) &&
          "Default p2align value should be natural");
   assert(MI.getDesc().OpInfo[OperandNo].OperandType ==
for (auto &MI : MBB) {
       case WebAssembly::ATOMIC_RMW_AND_I64:
       case WebAssembly::ATOMIC_RMW_OR_I64:
       case WebAssembly::ATOMIC_RMW_XOR_I64:
       case WebAssembly::ATOMIC_RMW_XCHG_I64:
       case WebAssembly::ATOMIC_RMW_CMPXCHG_I64:
       case WebAssembly::ATOMIC_NOTIFY:
       case WebAssembly::ATOMIC_WAIT_I32:
       case WebAssembly::ATOMIC_WAIT_I64:
-        RewriteP2Align(MI, WebAssembly::LoadP2AlignOperandNo);
+        rewriteP2Align(MI, WebAssembly::LoadP2AlignOperandNo);
         break;
       case WebAssembly::STORE_I32:
       case WebAssembly::STORE_I64:
       case WebAssembly::STORE_F32:
       case WebAssembly::STORE_F64:
       case WebAssembly::STORE_v16i8:
       case WebAssembly::STORE_v8i16:
       case WebAssembly::STORE_v4i32:
       case WebAssembly::STORE_v2i64:
       case WebAssembly::STORE_v4f32:
       case WebAssembly::STORE_v2f64:
       case WebAssembly::STORE8_I32:
       case WebAssembly::STORE16_I32:
       case WebAssembly::STORE8_I64:
       case WebAssembly::STORE16_I64:
       case WebAssembly::STORE32_I64:
       case WebAssembly::ATOMIC_STORE_I32:
       case WebAssembly::ATOMIC_STORE8_I32:
       case WebAssembly::ATOMIC_STORE16_I32:
       case WebAssembly::ATOMIC_STORE_I64:
       case WebAssembly::ATOMIC_STORE8_I64:
       case WebAssembly::ATOMIC_STORE16_I64:
       case WebAssembly::ATOMIC_STORE32_I64:
-        RewriteP2Align(MI, WebAssembly::StoreP2AlignOperandNo);
+        rewriteP2Align(MI, WebAssembly::StoreP2AlignOperandNo);
         break;
       default:
         break;
       }
     }
   }
 
   return Changed;
 }

lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp

WebAssemblyTargetMachine::WebAssemblyTargetMachine(
 
   initAsmInfo();
 
   // Note that we don't use setRequiresStructuredCFG(true). It disables
   // optimizations than we're ok with, and want, such as critical edge
   // splitting and tail merging.
 }
 
-WebAssemblyTargetMachine::~WebAssemblyTargetMachine() {}
+WebAssemblyTargetMachine::~WebAssemblyTargetMachine() = default; // anchor.
 
 const WebAssemblySubtarget *
 WebAssemblyTargetMachine::getSubtargetImpl(const Function &F) const {
   Attribute CPUAttr = F.getFnAttribute("target-cpu");
   Attribute FSAttr = F.getFnAttribute("target-features");
 
   std::string CPU = !CPUAttr.hasAttribute(Attribute::None)
                         ? CPUAttr.getValueAsString().str()

lib/Target/WebAssembly/WebAssemblyTargetTransformInfo.cpp

 unsigned WebAssemblyTTIImpl::getArithmeticInstrCost(
     unsigned Opcode, Type *Ty, TTI::OperandValueKind Opd1Info,
     TTI::OperandValueKind Opd2Info, TTI::OperandValueProperties Opd1PropInfo,
     TTI::OperandValueProperties Opd2PropInfo, ArrayRef<const Value *> Args) {
 
   unsigned Cost = BasicTTIImplBase<WebAssemblyTTIImpl>::getArithmeticInstrCost(
       Opcode, Ty, Opd1Info, Opd2Info, Opd1PropInfo, Opd2PropInfo);
 
-  if (VectorType *VTy = dyn_cast<VectorType>(Ty)) {
+  if (auto *VTy = dyn_cast<VectorType>(Ty)) {
     switch (Opcode) {
     case Instruction::LShr:
     case Instruction::AShr:
     case Instruction::Shl:
       // SIMD128's shifts currently only accept a scalar shift count. For each
       // element, we'll need to extract, op, insert. The following is a rough
       // approxmation.
       if (Opd2Info != TTI::OK_UniformValue &&

tools/llvm-objdump/WasmDump.cpp

 
 #include "llvm-objdump.h"
 #include "llvm/Object/Wasm.h"
 
 using namespace llvm;
 using namespace object;
 
 void llvm::printWasmFileHeader(const object::ObjectFile *Obj) {
-  const WasmObjectFile *File = dyn_cast<const WasmObjectFile>(Obj);
+  const auto *File = dyn_cast<const WasmObjectFile>(Obj);
 
   outs() << "Program Header:\n";
   outs() << "Version: 0x";
   outs().write_hex(File->getHeader().Version);
   outs() << "\n";
 }
 
 std::error_code
if (SI == Obj->symbol_end()) {
     if (!SymNameOrErr)
       return errorToErrorCode(SymNameOrErr.takeError());
     StringRef SymName = *SymNameOrErr;
     Result.append(SymName.begin(), SymName.end());
   }
   Fmt << (Rel.Addend < 0 ? "" : "+") << Rel.Addend;
   Fmt.flush();
   Result.append(FmtBuf.begin(), FmtBuf.end());
   return std::error_code();
 }

tools/llvm-readobj/WasmDumper.cpp

 
 } // namespace
 
 namespace llvm {
 
 std::error_code createWasmDumper(const object::ObjectFile *Obj,
                                  ScopedPrinter &Writer,
                                  std::unique_ptr<ObjDumper> &Result) {
-  const WasmObjectFile *WasmObj = dyn_cast<WasmObjectFile>(Obj);
+  const auto *WasmObj = dyn_cast<WasmObjectFile>(Obj);
   assert(WasmObj && "createWasmDumper called with non-wasm object");
 
   Result.reset(new WasmDumper(WasmObj, Writer));
   return readobj_error::success;
 }
 
 } // namespace llvm

tools/obj2yaml/wasm2yaml.cpp

public:
   ErrorOr<WasmYAML::Object *> dump();
 
   std::unique_ptr<WasmYAML::CustomSection>
   dumpCustomSection(const WasmSection &WasmSec);
 };
 
 } // namespace
 
-static WasmYAML::Table make_table(const wasm::WasmTable &Table) {
+static WasmYAML::Table makeTable(const wasm::WasmTable &Table) {
   WasmYAML::Table T;
   T.ElemType = Table.ElemType;
   T.TableLimits.Flags = Table.Limits.Flags;
   T.TableLimits.Initial = Table.Limits.Initial;
   T.TableLimits.Maximum = Table.Limits.Maximum;
   return T;
 }
 
-static WasmYAML::Limits make_limits(const wasm::WasmLimits &Limits) {
+static WasmYAML::Limits makeLimits(const wasm::WasmLimits &Limits) {
   WasmYAML::Limits L;
   L.Flags = Limits.Flags;
   L.Initial = Limits.Initial;
   L.Maximum = Limits.Maximum;
   return L;
 }
 
 std::unique_ptr<WasmYAML::CustomSection>
case wasm::WASM_SEC_TYPE: {
         WasmYAML::Signature Sig;
         Sig.Index = Index++;
         Sig.ReturnType = wasm::WASM_TYPE_NORESULT;
         assert(FunctionSig.Returns.size() <= 1 &&
                "Functions with multiple returns are not supported");
         if (FunctionSig.Returns.size())
           Sig.ReturnType = static_cast<uint32_t>(FunctionSig.Returns[0]);
         for (const auto &ParamType : FunctionSig.Params)
-          Sig.ParamTypes.push_back(static_cast<uint32_t>(ParamType));
+          Sig.ParamTypes.emplace_back(static_cast<uint32_t>(ParamType));
         TypeSec->Signatures.push_back(Sig);
       }
       S = std::move(TypeSec);
       break;
     }
     case wasm::WASM_SEC_IMPORT: {
       auto ImportSec = make_unique<WasmYAML::ImportSection>();
       for (auto &Import : Obj.imports()) {
case wasm::WASM_SEC_IMPORT: {
           Im.GlobalImport.Type = Import.Global.Type;
           Im.GlobalImport.Mutable = Import.Global.Mutable;
           break;
         case wasm::WASM_EXTERNAL_EVENT:
           Im.EventImport.Attribute = Import.Event.Attribute;
           Im.EventImport.SigIndex = Import.Event.SigIndex;
           break;
         case wasm::WASM_EXTERNAL_TABLE:
-          Im.TableImport = make_table(Import.Table);
+          Im.TableImport = makeTable(Import.Table);
           break;
         case wasm::WASM_EXTERNAL_MEMORY:
-          Im.Memory = make_limits(Import.Memory);
+          Im.Memory = makeLimits(Import.Memory);
           break;
         }
         ImportSec->Imports.push_back(Im);
       }
       S = std::move(ImportSec);
       break;
     }
     case wasm::WASM_SEC_FUNCTION: {
       auto FuncSec = make_unique<WasmYAML::FunctionSection>();
       for (const auto &Func : Obj.functionTypes()) {
         FuncSec->FunctionTypes.push_back(Func);
       }
       S = std::move(FuncSec);
       break;
     }
     case wasm::WASM_SEC_TABLE: {
       auto TableSec = make_unique<WasmYAML::TableSection>();
       for (const wasm::WasmTable &Table : Obj.tables()) {
-        TableSec->Tables.push_back(make_table(Table));
+        TableSec->Tables.push_back(makeTable(Table));
       }
       S = std::move(TableSec);
       break;
     }
     case wasm::WASM_SEC_MEMORY: {
       auto MemorySec = make_unique<WasmYAML::MemorySection>();
       for (const wasm::WasmLimits &Memory : Obj.memories()) {
-        MemorySec->Memories.push_back(make_limits(Memory));
+        MemorySec->Memories.push_back(makeLimits(Memory));
       }
       S = std::move(MemorySec);
       break;
     }
     case wasm::WASM_SEC_GLOBAL: {
       auto GlobalSec = make_unique<WasmYAML::GlobalSection>();
       for (auto &Global : Obj.globals()) {
         WasmYAML::Global G;
std::error_code wasm2yaml(raw_ostream &Out, const object::WasmObjectFile &Obj) {
   ErrorOr<WasmYAML::Object *> YAMLOrErr = Dumper.dump();
   if (std::error_code EC = YAMLOrErr.getError())
     return EC;
 
   std::unique_ptr<WasmYAML::Object> YAML(YAMLOrErr.get());
   yaml::Output Yout(Out);
   Yout << *YAML;
 
   return std::error_code();
 }

tools/yaml2obj/yaml2wasm.cpp

 class SubSectionWriter {
   raw_ostream &OS;
   std::string OutString;
   raw_string_ostream StringStream;
 
 public:
   SubSectionWriter(raw_ostream &OS) : OS(OS), StringStream(OutString) {}
 
-  void Done() {
+  void done() {
     StringStream.flush();
     encodeULEB128(OutString.size(), OS);
     OS << OutString;
     OutString.clear();
   }
 
-  raw_ostream &GetStream() { return StringStream; }
+  raw_ostream &getStream() { return StringStream; }
 };
 
 int WasmWriter::writeSectionContent(raw_ostream &OS,
                                     WasmYAML::DylinkSection &Section) {
   writeStringRef(Section.Name, OS);
   encodeULEB128(Section.MemorySize, OS);
   encodeULEB128(Section.MemoryAlignment, OS);
   encodeULEB128(Section.TableSize, OS);
int WasmWriter::writeSectionContent(raw_ostream &OS,
   encodeULEB128(Section.Version, OS);
 
   SubSectionWriter SubSection(OS);
 
   // SYMBOL_TABLE subsection
   if (Section.SymbolTable.size()) {
     writeUint8(OS, wasm::WASM_SYMBOL_TABLE);
 
-    encodeULEB128(Section.SymbolTable.size(), SubSection.GetStream());
+    encodeULEB128(Section.SymbolTable.size(), SubSection.getStream());
 #ifndef NDEBUG
     uint32_t SymbolIndex = 0;
 #endif
     for (const WasmYAML::SymbolInfo &Info : Section.SymbolTable) {
       assert(Info.Index == SymbolIndex++);
-      writeUint8(SubSection.GetStream(), Info.Kind);
-      encodeULEB128(Info.Flags, SubSection.GetStream());
+      writeUint8(SubSection.getStream(), Info.Kind);
+      encodeULEB128(Info.Flags, SubSection.getStream());
       switch (Info.Kind) {
       case wasm::WASM_SYMBOL_TYPE_FUNCTION:
       case wasm::WASM_SYMBOL_TYPE_GLOBAL:
       case wasm::WASM_SYMBOL_TYPE_EVENT:
-        encodeULEB128(Info.ElementIndex, SubSection.GetStream());
+        encodeULEB128(Info.ElementIndex, SubSection.getStream());
         if ((Info.Flags & wasm::WASM_SYMBOL_UNDEFINED) == 0)
-          writeStringRef(Info.Name, SubSection.GetStream());
+          writeStringRef(Info.Name, SubSection.getStream());
         break;
       case wasm::WASM_SYMBOL_TYPE_DATA:
-        writeStringRef(Info.Name, SubSection.GetStream());
+        writeStringRef(Info.Name, SubSection.getStream());
         if ((Info.Flags & wasm::WASM_SYMBOL_UNDEFINED) == 0) {
-          encodeULEB128(Info.DataRef.Segment, SubSection.GetStream());
-          encodeULEB128(Info.DataRef.Offset, SubSection.GetStream());
-          encodeULEB128(Info.DataRef.Size, SubSection.GetStream());
+          encodeULEB128(Info.DataRef.Segment, SubSection.getStream());
+          encodeULEB128(Info.DataRef.Offset, SubSection.getStream());
+          encodeULEB128(Info.DataRef.Size, SubSection.getStream());
         }
         break;
       case wasm::WASM_SYMBOL_TYPE_SECTION:
-        encodeULEB128(Info.ElementIndex, SubSection.GetStream());
+        encodeULEB128(Info.ElementIndex, SubSection.getStream());
         break;
       default:
         llvm_unreachable("unexpected kind");
       }
     }
 
-    SubSection.Done();
+    SubSection.done();
   }
 
   // SEGMENT_NAMES subsection
   if (Section.SegmentInfos.size()) {
     writeUint8(OS, wasm::WASM_SEGMENT_INFO);
-    encodeULEB128(Section.SegmentInfos.size(), SubSection.GetStream());
+    encodeULEB128(Section.SegmentInfos.size(), SubSection.getStream());
     for (const WasmYAML::SegmentInfo &SegmentInfo : Section.SegmentInfos) {
-      writeStringRef(SegmentInfo.Name, SubSection.GetStream());
-      encodeULEB128(SegmentInfo.Alignment, SubSection.GetStream());
-      encodeULEB128(SegmentInfo.Flags, SubSection.GetStream());
+      writeStringRef(SegmentInfo.Name, SubSection.getStream());
+      encodeULEB128(SegmentInfo.Alignment, SubSection.getStream());
+      encodeULEB128(SegmentInfo.Flags, SubSection.getStream());
     }
-    SubSection.Done();
+    SubSection.done();
   }
 
   // INIT_FUNCS subsection
   if (Section.InitFunctions.size()) {
     writeUint8(OS, wasm::WASM_INIT_FUNCS);
-    encodeULEB128(Section.InitFunctions.size(), SubSection.GetStream());
+    encodeULEB128(Section.InitFunctions.size(), SubSection.getStream());
     for (const WasmYAML::InitFunction &Func : Section.InitFunctions) {
-      encodeULEB128(Func.Priority, SubSection.GetStream());
-      encodeULEB128(Func.Symbol, SubSection.GetStream());
+      encodeULEB128(Func.Priority, SubSection.getStream());
+      encodeULEB128(Func.Symbol, SubSection.getStream());
     }
-    SubSection.Done();
+    SubSection.done();
   }
 
   // COMDAT_INFO subsection
   if (Section.Comdats.size()) {
     writeUint8(OS, wasm::WASM_COMDAT_INFO);
-    encodeULEB128(Section.Comdats.size(), SubSection.GetStream());
+    encodeULEB128(Section.Comdats.size(), SubSection.getStream());
     for (const auto &C : Section.Comdats) {
-      writeStringRef(C.Name, SubSection.GetStream());
-      encodeULEB128(0, SubSection.GetStream()); // flags for future use
-      encodeULEB128(C.Entries.size(), SubSection.GetStream());
+      writeStringRef(C.Name, SubSection.getStream());
+      encodeULEB128(0, SubSection.getStream()); // flags for future use
+      encodeULEB128(C.Entries.size(), SubSection.getStream());
       for (const WasmYAML::ComdatEntry &Entry : C.Entries) {
-        writeUint8(SubSection.GetStream(), Entry.Kind);
-        encodeULEB128(Entry.Index, SubSection.GetStream());
+        writeUint8(SubSection.getStream(), Entry.Kind);
+        encodeULEB128(Entry.Index, SubSection.getStream());
       }
     }
-    SubSection.Done();
+    SubSection.done();
   }
 
   return 0;
 }
 
 int WasmWriter::writeSectionContent(raw_ostream &OS,
                                     WasmYAML::NameSection &Section) {
   writeStringRef(Section.Name, OS);
   if (Section.FunctionNames.size()) {
     writeUint8(OS, wasm::WASM_NAMES_FUNCTION);
 
     SubSectionWriter SubSection(OS);
 
-    encodeULEB128(Section.FunctionNames.size(), SubSection.GetStream());
+    encodeULEB128(Section.FunctionNames.size(), SubSection.getStream());
     for (const WasmYAML::NameEntry &NameEntry : Section.FunctionNames) {
-      encodeULEB128(NameEntry.Index, SubSection.GetStream());
-      writeStringRef(NameEntry.Name, SubSection.GetStream());
+      encodeULEB128(NameEntry.Index, SubSection.getStream());
+      writeStringRef(NameEntry.Name, SubSection.getStream());
     }
 
-    SubSection.Done();
+    SubSection.done();
   }
   return 0;
 }
 
 int WasmWriter::writeSectionContent(raw_ostream &OS,
                                     WasmYAML::ProducersSection &Section) {
   writeStringRef(Section.Name, OS);
   int Fields = int(!Section.Languages.empty()) + int(!Section.Tools.empty()) +