Lower the select instruction when the operands are of vector type.

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 358 matching lines @@
 
 InstRet::InstRet(Cfg *Func, Operand *RetValue)
     : Inst(Func, Ret, RetValue ? 1 : 0, NULL) {
   if (RetValue)
     addSource(RetValue);
 }
 
 InstSelect::InstSelect(Cfg *Func, Variable *Dest, Operand *Condition,
                        Operand *SourceTrue, Operand *SourceFalse)
     : Inst(Func, Inst::Select, 3, Dest) {
-  assert(Condition->getType() == IceType_i1);
+  assert(typeElementType(Condition->getType()) == IceType_i1);
   addSource(Condition);
   addSource(SourceTrue);
   addSource(SourceFalse);
 }
 
 InstStore::InstStore(Cfg *Func, Operand *Data, Operand *Addr)
     : Inst(Func, Inst::Store, 2, NULL) {
   addSource(Data);
   addSource(Addr);
 }
@@ skipping 369 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