Lower bitmanip intrinsics, assuming absence of BMI/SSE4.2 for now.

src/IceTargetLoweringX8632.h

 //===- subzero/src/IceTargetLoweringX8632.h - x86-32 lowering ---*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the TargetLoweringX8632 class, which
@@ skipping 81 matching lines @@
   virtual void lowerStore(const InstStore *Inst);
   virtual void lowerSwitch(const InstSwitch *Inst);
   virtual void lowerUnreachable(const InstUnreachable *Inst);
   virtual void doAddressOptLoad();
   virtual void doAddressOptStore();
 
   void lowerAtomicCmpxchg(Variable *DestPrev, Operand *Ptr, Operand *Expected,
                           Operand *Desired);
   void lowerAtomicRMW(Variable *Dest, uint32_t Operation, Operand *Ptr,
                       Operand *Val);
+  void lowerCountZeros(bool Cttz, Type Ty, Variable *Dest, Operand *FirstVal,
+                       Operand *SecondVal);
 
   typedef void (TargetX8632::*LowerBinOp)(Variable *, Operand *);
   void expandAtomicRMWAsCmpxchg(LowerBinOp op_lo, LowerBinOp op_hi,
                                 Variable *Dest, Operand *Ptr, Operand *Val);
 
   // Operand legalization helpers.  To deal with address mode
   // constraints, the helpers will create a new Operand and emit
   // instructions that guarantee that the Operand kind is one of those
   // indicated by the LegalMask (a bitmask of allowed kinds).  If the
   // input Operand is known to already meet the constraints, it may be
@@ skipping 45 matching lines @@
   }
   void _addps(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Addps::create(Func, Dest, Src0));
   }
   void _addss(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Addss::create(Func, Dest, Src0));
   }
   void _and(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632And::create(Func, Dest, Src0));
   }
-  void _br(InstX8632Br::BrCond Condition, CfgNode *TargetTrue,
+  void _br(InstX8632::BrCond Condition, CfgNode *TargetTrue,
            CfgNode *TargetFalse) {
     Context.insert(
         InstX8632Br::create(Func, TargetTrue, TargetFalse, Condition));
   }
   void _br(CfgNode *Target) {
     Context.insert(InstX8632Br::create(Func, Target));
   }
-  void _br(InstX8632Br::BrCond Condition, CfgNode *Target) {
+  void _br(InstX8632::BrCond Condition, CfgNode *Target) {
     Context.insert(InstX8632Br::create(Func, Target, Condition));
   }
-  void _br(InstX8632Br::BrCond Condition, InstX8632Label *Label) {
+  void _br(InstX8632::BrCond Condition, InstX8632Label *Label) {
     Context.insert(InstX8632Br::create(Func, Label, Condition));
   }
+  void _bsf(Variable *Dest, Operand *Src0) {
+    Context.insert(InstX8632Bsf::create(Func, Dest, Src0));
+  }
+  void _bsr(Variable *Dest, Operand *Src0) {
+    Context.insert(InstX8632Bsr::create(Func, Dest, Src0));
+  }
   void _cdq(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Cdq::create(Func, Dest, Src0));
   }
+  void _cmov(Variable *Dest, Operand *Src0, InstX8632::BrCond Condition) {
+    Context.insert(InstX8632Cmov::create(Func, Dest, Src0, Condition));
+  }
   void _cmp(Operand *Src0, Operand *Src1) {
     Context.insert(InstX8632Icmp::create(Func, Src0, Src1));
   }
   void _cmpxchg(Operand *DestOrAddr, Variable *Eax, Variable *Desired,
                 bool Locked) {
     Context.insert(
         InstX8632Cmpxchg::create(Func, DestOrAddr, Eax, Desired, Locked));
     // Mark eax as possibly modified by cmpxchg.
     Context.insert(
         InstFakeDef::create(Func, Eax, llvm::dyn_cast<Variable>(DestOrAddr)));
@@ skipping 176 matching lines @@
   virtual ~TargetGlobalInitX8632() {}
 };
 
 template <> void ConstantInteger::emit(GlobalContext *Ctx) const;
 template <> void ConstantFloat::emit(GlobalContext *Ctx) const;
 template <> void ConstantDouble::emit(GlobalContext *Ctx) const;
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERINGX8632_H