Subzero: Add more kinds of RMW 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.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file defines aspects of the compilation that persist across
@@ skipping 346 matching lines @@
   TimerMarker T1(Ice::TimerStack::TT_emit, this);
   if (getFlags().getOutFileType() == FT_Elf) {
     getObjectWriter()->writeInitialELFHeader();
   } else {
     if (!ALLOW_DUMP)
       llvm::report_fatal_error("emitFileHeader for non-ELF");
     TargetHeaderLowering::createLowering(this)->lower();
   }
 }
 
-void GlobalContext::lowerConstants() {
-  DataLowering->lowerConstants();
-}
+void GlobalContext::lowerConstants() { DataLowering->lowerConstants(); }
 
 void GlobalContext::lowerGlobals(const IceString &SectionSuffix) {
   TimerMarker T(TimerStack::TT_emitGlobalInitializers, this);
   const bool DumpGlobalVariables =
       ALLOW_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 514 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