Add call instructions to Subzero's bitcode reader.

src/IceInst.cpp

 //===- subzero/src/IceInst.cpp - High-level instruction 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 Inst class, primarily the various
@@ skipping 548 matching lines @@
   dumpDest(Func);
   Str << "br ";
   if (!isUnconditional()) {
     Str << "i1 ";
     getCondition()->dump(Func);
     Str << ", label %" << getTargetTrue()->getName() << ", ";
   }
   Str << "label %" << getTargetFalse()->getName();
 }
 
+Type InstCall::getReturnType() const {
+  if (Dest == NULL)
+    return IceType_void;
+  return Dest->getType();
+}
+
 void InstCall::dump(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrDump();
   if (getDest()) {
     dumpDest(Func);
     Str << " = ";
   }
   Str << "call ";
   if (getDest())
     Str << getDest()->getType();
   else
@@ skipping 184 matching lines @@
 
 void InstTarget::dump(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrDump();
   Str << "[TARGET] ";
   Inst::dump(Func);
 }
 
 void InstTarget::dumpExtras(const Cfg *Func) const { Inst::dumpExtras(Func); }
 
 } // end of namespace Ice