Iasm and obj lowering for advanced switch lowering.

src/IceGlobalContext.cpp

 //===- subzero/src/IceGlobalContext.cpp - Global context defs -------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 367 matching lines @@
     if (!BuildDefs::dump()) {
       getStrError() << "emitFileHeader for non-ELF";
       getErrorStatus()->assign(EC_Translation);
     }
     TargetHeaderLowering::createLowering(this)->lower();
   }
 }
 
 void GlobalContext::lowerConstants() { DataLowering->lowerConstants(); }
 
+void GlobalContext::lowerJumpTables() { DataLowering->lowerJumpTables(); }
+
 void GlobalContext::lowerGlobals(const IceString &SectionSuffix) {
   TimerMarker T(TimerStack::TT_emitGlobalInitializers, this);
   const bool DumpGlobalVariables = BuildDefs::dump() && Flags.getVerbose() &&
                                    Flags.getVerboseFocusOn().empty();
   if (DumpGlobalVariables) {
     OstreamLocker L(this);
     Ostream &Stream = getStrDump();
     for (const Ice::VariableDeclaration *Global : Globals) {
       Global->dump(this, Stream);
     }
@@ skipping 471 matching lines @@
   case IceType_NUM:
     break;
   }
   llvm_unreachable("Unknown type");
 }
 
 ConstantList GlobalContext::getConstantExternSyms() {
   return getConstPool()->ExternRelocatables.getConstantPool();
 }
 
+JumpTableData &GlobalContext::addJumpTable(IceString FuncName, SizeT Id,
+                                           SizeT NumTargets) {
+  auto JumpTables = getJumpTables();
+  JumpTables->emplace_back(FuncName, Id, NumTargets);
+  return JumpTables->back();
+}
+
 TimerStackIdT GlobalContext::newTimerStackID(const IceString &Name) {
   if (!BuildDefs::dump())
     return 0;
   auto Timers = getTimers();
   TimerStackIdT NewID = Timers->size();
   Timers->push_back(TimerStack(Name));
   return NewID;
 }
 
 TimerIdT GlobalContext::getTimerID(TimerStackIdT StackID,
@@ skipping 94 matching lines @@
   Ctx = Func->getContext();
   Active =
       Func->getFocusedTiming() || Ctx->getFlags().getSubzeroTimingEnabled();
   if (Active)
     Ctx->pushTimer(ID, StackID);
 }
 
 ICE_TLS_DEFINE_FIELD(GlobalContext::ThreadContext *, GlobalContext, TLS);
 
 } // end of namespace Ice