Subzero: Add -Wshadow to the build.

src/IceConverter.cpp

Index: src/IceConverter.cpp
diff --git a/src/IceConverter.cpp b/src/IceConverter.cpp
index d389a0215da943a2b25de754897ab3dbad0de658..d8c85fa6ee813e7c1e9105b6bdf53575cfd94ba3 100644
--- a/src/IceConverter.cpp
+++ b/src/IceConverter.cpp
@@ -27,6 +27,7 @@
 
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wunused-parameter"
+#pragma clang diagnostic ignored "-Wshadow"
 #include "llvm/IR/Constant.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DataLayout.h"
@@ -60,9 +61,9 @@ class LLVM2ICEConverter {
   LLVM2ICEConverter &operator=(const LLVM2ICEConverter &) = delete;
 
 public:
-  explicit LLVM2ICEConverter(Ice::Converter &Converter)
-      : Converter(Converter), Ctx(Converter.getContext()),
-        TypeConverter(Converter.getModule()->getContext()) {}
+  explicit LLVM2ICEConverter(Ice::Converter &MyConverter)
+      : Converter(MyConverter), Ctx(MyConverter.getContext()),
+        TypeConverter(MyConverter.getModule()->getContext()) {}
 
   Ice::Converter &getConverter() const { return Converter; }
 
@@ -128,8 +129,8 @@ public:
     if (const auto GV = dyn_cast<GlobalValue>(Const)) {
       Ice::GlobalDeclaration *Decl = getConverter().getGlobalDeclaration(GV);
       bool IsUndefined = false;
-      if (const auto *Func = llvm::dyn_cast<Ice::FunctionDeclaration>(Decl))
-        IsUndefined = Func->isProto();
+      if (const auto *MyFunc = llvm::dyn_cast<Ice::FunctionDeclaration>(Decl))
+        IsUndefined = MyFunc->isProto();
       else if (const auto *Var = llvm::dyn_cast<Ice::VariableDeclaration>(Decl))
         IsUndefined = !Var->hasInitializer();
       else
@@ -733,10 +734,10 @@ LLVM2ICEGlobalsConverter::convertGlobalsToIce(Module *Mod) {
 
     const Constant *Initializer = GV->getInitializer();
     if (const auto CompoundInit = dyn_cast<ConstantStruct>(Initializer)) {
-      for (ConstantStruct::const_op_iterator I = CompoundInit->op_begin(),
-                                             E = CompoundInit->op_end();
-           I != E; ++I) {
-        if (const auto Init = dyn_cast<Constant>(I)) {
+      for (ConstantStruct::const_op_iterator CII = CompoundInit->op_begin(),
+                                             CIE = CompoundInit->op_end();
+           CII != CIE; ++CII) {
+        if (const auto Init = dyn_cast<Constant>(CII)) {
           addGlobalInitializer(*VarDecl, Init);
         }
       }
@@ -806,12 +807,12 @@ void LLVM2ICEGlobalsConverter::addGlobalInitializer(
 
 namespace Ice {
 
-void Converter::nameUnnamedGlobalVariables(Module *Mod) {
+void Converter::nameUnnamedGlobalVariables(Module *MyMod) {
   const IceString &GlobalPrefix = Ctx->getFlags().getDefaultGlobalPrefix();
   if (GlobalPrefix.empty())
     return;
   uint32_t NameIndex = 0;
-  for (auto V = Mod->global_begin(), E = Mod->global_end(); V != E; ++V) {
+  for (auto V = MyMod->global_begin(), E = MyMod->global_end(); V != E; ++V) {
     if (!V->hasName()) {
       V->setName(createUnnamedName(GlobalPrefix, NameIndex));
       ++NameIndex;
@@ -821,12 +822,12 @@ void Converter::nameUnnamedGlobalVariables(Module *Mod) {
   }
 }
 
-void Converter::nameUnnamedFunctions(Module *Mod) {
+void Converter::nameUnnamedFunctions(Module *MyMod) {
   const IceString &FunctionPrefix = Ctx->getFlags().getDefaultFunctionPrefix();
   if (FunctionPrefix.empty())
     return;
   uint32_t NameIndex = 0;
-  for (Function &F : *Mod) {
+  for (Function &F : *MyMod) {
     if (!F.hasName()) {
       F.setName(createUnnamedName(FunctionPrefix, NameIndex));
       ++NameIndex;
@@ -856,10 +857,10 @@ GlobalDeclaration *Converter::getGlobalDeclaration(const GlobalValue *V) {
   return Pos->second;
 }
 
-void Converter::installGlobalDeclarations(Module *Mod) {
-  const TypeConverter Converter(Mod->getContext());
+void Converter::installGlobalDeclarations(Module *MyMod) {
+  const TypeConverter Converter(MyMod->getContext());
   // Install function declarations.
-  for (const Function &Func : *Mod) {
+  for (const Function &Func : *MyMod) {
     FuncSigType Signature;
     FunctionType *FuncType = Func.getFunctionType();
     Signature.setReturnType(
@@ -874,8 +875,8 @@ void Converter::installGlobalDeclarations(Module *Mod) {
     GlobalDeclarationMap[&Func] = IceFunc;
   }
   // Install global variable declarations.
-  for (Module::const_global_iterator I = Mod->global_begin(),
-                                     E = Mod->global_end();
+  for (Module::const_global_iterator I = MyMod->global_begin(),
+                                     E = MyMod->global_end();
        I != E; ++I) {
     const GlobalVariable *GV = I;
     VariableDeclaration *Var = VariableDeclaration::create(Ctx);
@@ -887,8 +888,8 @@ void Converter::installGlobalDeclarations(Module *Mod) {
   }
 }
 
-void Converter::convertGlobals(Module *Mod) {
-  lowerGlobals(LLVM2ICEGlobalsConverter(*this).convertGlobalsToIce(Mod));
+void Converter::convertGlobals(Module *MyMod) {
+  lowerGlobals(LLVM2ICEGlobalsConverter(*this).convertGlobalsToIce(MyMod));
 }
 
 void Converter::convertFunctions() {