Introduce the notion of function addresses in Subzero.

src/IceTranslator.cpp

 //===- subzero/src/IceTranslator.cpp - ICE to machine code ------*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file defines the general driver class for translating ICE to
 // machine code.
 //
 //===----------------------------------------------------------------------===//
 
 #include <iostream>
 #include <memory>
 
 #include "llvm/IR/Constant.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/Module.h"
 
 #include "IceCfg.h"
 #include "IceClFlags.h"
 #include "IceDefs.h"
+#include "IceGlobalInits.h"
 #include "IceTargetLowering.h"
 #include "IceTranslator.h"
 
 using namespace Ice;
 
 Translator::~Translator() {}
 
 IceString Translator::createUnnamedName(const IceString &Prefix, SizeT Index) {
   if (Index == 0)
     return Prefix;
@@ skipping 12 matching lines @@
         return false;
       }
     }
     Stream << "Warning : Default " << Kind << " prefix '" << Prefix
            << "' potentially conflicts with name '" << Name << "'.\n";
     return true;
   }
   return false;
 }
 
-void Translator::nameUnnamedGlobalAddresses(llvm::Module *Mod) {
-  const IceString &GlobalPrefix = Flags.DefaultGlobalPrefix;
-  if (GlobalPrefix.empty())
-    return;
-  uint32_t NameIndex = 0;
-  Ostream &errs = Ctx->getStrDump();
-  for (auto V = Mod->global_begin(), E = Mod->global_end(); V != E; ++V) {
-    if (!V->hasName()) {
-      V->setName(createUnnamedName(GlobalPrefix, NameIndex));
-      ++NameIndex;
-    } else {
-      checkIfUnnamedNameSafe(V->getName(), "global", GlobalPrefix, errs);
-    }
-  }
-}
-
-void Translator::nameUnnamedFunctions(llvm::Module *Mod) {
-  const IceString &FunctionPrefix = Flags.DefaultFunctionPrefix;
-  if (FunctionPrefix.empty())
-    return;
-  uint32_t NameIndex = 0;
-  Ostream &errs = Ctx->getStrDump();
-  for (llvm::Function &F : *Mod) {
-    if (!F.hasName()) {
-      F.setName(createUnnamedName(FunctionPrefix, NameIndex));
-      ++NameIndex;
-    } else {
-      checkIfUnnamedNameSafe(F.getName(), "function", FunctionPrefix, errs);
-    }
-  }
-}
-
 void Translator::translateFcn(Cfg *Fcn) {
   Ctx->resetStats();
   Func.reset(Fcn);
   if (Ctx->getFlags().DisableInternal)
     Func->setInternal(false);
   if (Ctx->getFlags().DisableTranslation) {
     Func->dump();
   } else {
     Func->translate();
     if (Func->hasError()) {
       std::cerr << "ICE translation error: " << Func->getError() << "\n";
       ErrorStatus = true;
     }
 
     Func->emit();
     Ctx->dumpStats(Func->getFunctionName());
   }
 }
 
 void Translator::emitConstants() {
   if (!Ctx->getFlags().DisableTranslation && Func)
     Func->getTarget()->emitConstants();
 }
 
-void Translator::lowerGlobals(const GlobalAddressList &GlobalAddresses) {
-  llvm::OwningPtr<Ice::TargetGlobalInitLowering> GlobalLowering(
-      Ice::TargetGlobalInitLowering::createLowering(Ctx->getTargetArch(), Ctx));
+void Translator::lowerGlobals(
+    const VariableDeclarationListType &VariableDeclarations) {
+  llvm::OwningPtr<TargetGlobalInitLowering> GlobalLowering(
+      TargetGlobalInitLowering::createLowering(Ctx->getTargetArch(), Ctx));
   bool DisableTranslation = Ctx->getFlags().DisableTranslation;
-  for (const Ice::GlobalAddress *Addr : GlobalAddresses) {
-    GlobalLowering->lower(*Addr, DisableTranslation);
+  bool DumpGlobalVariables = Ctx->isVerbose();
+  Ostream &Stream = Ctx->getStrDump();
+  for (const Ice::VariableDeclaration *Global : VariableDeclarations) {
+    if (DumpGlobalVariables)
+      Global->dump(Stream);
+    if(!DisableTranslation)
+      GlobalLowering->lower(*Global);
   }
   GlobalLowering.reset();
 }