Add initial integrated assembler w/ some Xmm ops.

src/IceCfgNode.cpp

 //===- subzero/src/IceCfgNode.cpp - Basic block (node) implementation -----===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the CfgNode class, including the complexities
@@ skipping 477 matching lines @@
   }
   for (InstList::const_iterator I = Insts.begin(), E = Insts.end(); I != E;
        ++I) {
     Inst *Inst = *I;
     if (Inst->isDeleted())
       continue;
     // Here we detect redundant assignments like "mov eax, eax" and
     // suppress them.
     if (Inst->isRedundantAssign())
       continue;
-    (*I)->emit(Func);
+    if (Func->UseIntegratedAssembler()) {
+      (*I)->emitIAS(Func);
+    } else {
+      (*I)->emit(Func);
+    }
     // Update emitted instruction count, plus fill/spill count for
     // Variable operands without a physical register.
     if (uint32_t Count = (*I)->getEmitInstCount()) {
       Func->getContext()->statsUpdateEmitted(Count);
       if (Variable *Dest = (*I)->getDest()) {
         if (!Dest->hasReg())
           Func->getContext()->statsUpdateFills();
       }
       for (SizeT S = 0; S < (*I)->getSrcSize(); ++S) {
         if (Variable *Src = llvm::dyn_cast<Variable>((*I)->getSrc(S))) {
@@ skipping 69 matching lines @@
          I != E; ++I) {
       if (I != OutEdges.begin())
         Str << ", ";
       Str << "%" << (*I)->getName();
     }
     Str << "\n";
   }
 }
 
 } // end of namespace Ice