Start processing function blocks in Subzero.

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 15 matching lines @@
 const struct InstArithmeticAttributes_ {
   const char *DisplayString;
   bool IsCommutative;
 } InstArithmeticAttributes[] = {
 #define X(tag, str, commutative)                                               \
   { str, commutative }                                                         \
   ,
     ICEINSTARITHMETIC_TABLE
 #undef X
   };
-const size_t InstArithmeticAttributesSize =
-    llvm::array_lengthof(InstArithmeticAttributes);
 
 // Using non-anonymous struct so that array_lengthof works.
 const struct InstCastAttributes_ {
   const char *DisplayString;
 } InstCastAttributes[] = {
 #define X(tag, str)                                                            \
   { str }                                                                      \
   ,
     ICEINSTCAST_TABLE
 #undef X
   };
-const size_t InstCastAttributesSize = llvm::array_lengthof(InstCastAttributes);
 
 // Using non-anonymous struct so that array_lengthof works.
 const struct InstFcmpAttributes_ {
   const char *DisplayString;
 } InstFcmpAttributes[] = {
 #define X(tag, str)                                                            \
   { str }                                                                      \
   ,
     ICEINSTFCMP_TABLE
 #undef X
   };
-const size_t InstFcmpAttributesSize = llvm::array_lengthof(InstFcmpAttributes);
 
 // Using non-anonymous struct so that array_lengthof works.
 const struct InstIcmpAttributes_ {
   const char *DisplayString;
 } InstIcmpAttributes[] = {
 #define X(tag, str)                                                            \
   { str }                                                                      \
   ,
     ICEINSTICMP_TABLE
 #undef X
   };
-const size_t InstIcmpAttributesSize = llvm::array_lengthof(InstIcmpAttributes);
 
 } // end of anonymous namespace
 
 Inst::Inst(Cfg *Func, InstKind Kind, SizeT MaxSrcs, Variable *Dest)
     : Kind(Kind), Number(Func->newInstNumber()), Deleted(false), Dead(false),
       HasSideEffects(false), Dest(Dest), MaxSrcs(MaxSrcs), NumSrcs(0),
       Srcs(Func->allocateArrayOf<Operand *>(MaxSrcs)), LiveRangesEnded(0) {}
 
 // Assign the instruction a new number.
 void Inst::renumber(Cfg *Func) {
@@ skipping 137 matching lines @@
   addSource(ByteCount);
 }
 
 InstArithmetic::InstArithmetic(Cfg *Func, OpKind Op, Variable *Dest,
                                Operand *Source1, Operand *Source2)
     : Inst(Func, Inst::Arithmetic, 2, Dest), Op(Op) {
   addSource(Source1);
   addSource(Source2);
 }
 
+const char *InstArithmetic::getOpName(OpKind Op) {
+  size_t OpIndex = static_cast<size_t>(Op);
+  return OpIndex < InstArithmetic::_num
+             ? InstArithmeticAttributes[OpIndex].DisplayString
+             : "???";
+}
+
 bool InstArithmetic::isCommutative() const {
   return InstArithmeticAttributes[getOp()].IsCommutative;
 }
 
 InstAssign::InstAssign(Cfg *Func, Variable *Dest, Operand *Source)
     : Inst(Func, Inst::Assign, 1, Dest) {
   addSource(Source);
 }
 
 // If TargetTrue==TargetFalse, we turn it into an unconditional
@@ skipping 518 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