Subzero: Fix a -verbose=regalloc bug.

src/IceRegAlloc.cpp

 //===- subzero/src/IceRegAlloc.cpp - Linear-scan implementation -----------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 802 matching lines @@
     }
     if (BuildDefs::dump() && Verbose) {
       Ostream &Str = Ctx->getStrDump();
       if (!Item->hasRegTmp()) {
         Str << "Not assigning ";
         Item->dump(Func);
         Str << "\n";
       } else {
         Str << (AssignedRegNum == Item->getRegNum() ? "Reassigning "
                                                     : "Assigning ")
-            << Target->getRegName(AssignedRegNum, IceType_i32) << "(r"
+            << Target->getRegName(AssignedRegNum, Item->getType()) << "(r"
             << AssignedRegNum << ") to ";
         Item->dump(Func);
         Str << "\n";
       }
     }
     Item->setRegNum(AssignedRegNum);
   }
 }
 
 // Implements the linear-scan algorithm. Based on "Linear Scan Register
@@ skipping 194 matching lines @@
     Str << "\n";
   }
   Str << "++++++ Inactive:\n";
   for (const Variable *Item : Inactive) {
     dumpLiveRange(Item, Func);
     Str << "\n";
   }
 }
 
 } // end of namespace Ice