emitIAS for movsx and movzx.

src/IceInstX8632.h

 //===- subzero/src/IceInstX8632.h - Low-level x86 instructions --*- 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 InstX8632 and OperandX8632 classes and
@@ skipping 459 matching lines @@
   }
   InstX8632InplaceopGPR(const InstX8632InplaceopGPR &) = delete;
   InstX8632InplaceopGPR &operator=(const InstX8632InplaceopGPR &) = delete;
   ~InstX8632InplaceopGPR() override {}
   static const char *Opcode;
   static const x86::AssemblerX86::GPREmitterOneOp Emitter;
 };
 
 // Emit a two-operand (GPR) instruction, where the dest operand is a
 // Variable that's guaranteed to be a register.
+template <bool VarCanBeByte = true, bool SrcCanBeByte = true>
 void emitIASRegOpTyGPR(const Cfg *Func, Type Ty, const Variable *Dst,
                        const Operand *Src,
                        const x86::AssemblerX86::GPREmitterRegOp &Emitter);
 
-// Instructions of the form x := op(y)
+// Instructions of the form x := op(y).
 template <InstX8632::InstKindX8632 K>
 class InstX8632UnaryopGPR : public InstX8632 {
 public:
   static InstX8632UnaryopGPR *create(Cfg *Func, Variable *Dest, Operand *Src) {
     return new (Func->allocate<InstX8632UnaryopGPR>())
         InstX8632UnaryopGPR(Func, Dest, Src);
   }
   void emit(const Cfg *Func) const override {
     Ostream &Str = Func->getContext()->getStrEmit();
     assert(getSrcSize() == 1);
     Str << "\t" << Opcode << "\t";
     getDest()->emit(Func);
     Str << ", ";
     getSrc(0)->emit(Func);
     Str << "\n";
   }
   void emitIAS(const Cfg *Func) const override {
     assert(getSrcSize() == 1);
     const Variable *Var = getDest();
     Type Ty = Var->getType();
     const Operand *Src = getSrc(0);
     emitIASRegOpTyGPR(Func, Ty, Var, Src, Emitter);
   }
   void dump(const Cfg *Func) const override {
     Ostream &Str = Func->getContext()->getStrDump();
     dumpDest(Func);
-    Str << " = " << Opcode << "." << getDest()->getType() << " ";
+    Str << " = " << Opcode << "." << getSrc(0)->getType() << " ";
     dumpSources(Func);
   }
   static bool classof(const Inst *Inst) { return isClassof(Inst, K); }
 
 private:
   InstX8632UnaryopGPR(Cfg *Func, Variable *Dest, Operand *Src)
       : InstX8632(Func, K, 1, Dest) {
     addSource(Src);
   }
   InstX8632UnaryopGPR(const InstX8632UnaryopGPR &) = delete;
@@ skipping 340 matching lines @@
   static const char *Opcode;
 };
 
 typedef InstX8632InplaceopGPR<InstX8632::Bswap> InstX8632Bswap;
 typedef InstX8632InplaceopGPR<InstX8632::Neg> InstX8632Neg;
 typedef InstX8632UnaryopGPR<InstX8632::Bsf> InstX8632Bsf;
 typedef InstX8632UnaryopGPR<InstX8632::Bsr> InstX8632Bsr;
 typedef InstX8632UnaryopGPR<InstX8632::Lea> InstX8632Lea;
 // Cbwdq instruction - wrapper for cbw, cwd, and cdq
 typedef InstX8632UnaryopGPR<InstX8632::Cbwdq> InstX8632Cbwdq;
+typedef InstX8632UnaryopGPR<InstX8632::Movsx> InstX8632Movsx;
+typedef InstX8632UnaryopGPR<InstX8632::Movzx> InstX8632Movzx;
 typedef InstX8632UnaryopXmm<InstX8632::Movd> InstX8632Movd;
 typedef InstX8632UnaryopXmm<InstX8632::Sqrtss> InstX8632Sqrtss;
 // Move/assignment instruction - wrapper for mov/movss/movsd.
 typedef InstX8632Movlike<InstX8632::Mov> InstX8632Mov;
 // Move packed - copy 128 bit values between XMM registers, or mem128
 // and XMM registers.
 typedef InstX8632Movlike<InstX8632::Movp> InstX8632Movp;
 // Movq - copy between XMM registers, or mem64 and XMM registers.
 typedef InstX8632Movlike<InstX8632::Movq> InstX8632Movq;
 typedef InstX8632BinopGPR<InstX8632::Add> InstX8632Add;
@@ skipping 402 matching lines @@
   void dump(const Cfg *Func) const override;
   static bool classof(const Inst *Inst) { return isClassof(Inst, StoreQ); }
 
 private:
   InstX8632StoreQ(Cfg *Func, Variable *Value, OperandX8632Mem *Mem);
   InstX8632StoreQ(const InstX8632StoreQ &) = delete;
   InstX8632StoreQ &operator=(const InstX8632StoreQ &) = delete;
   ~InstX8632StoreQ() override {}
 };
 
-// Movsx - copy from a narrower integer type to a wider integer
-// type, with sign extension.
-class InstX8632Movsx : public InstX8632 {
-public:
-  static InstX8632Movsx *create(Cfg *Func, Variable *Dest, Operand *Source) {
-    return new (Func->allocate<InstX8632Movsx>())
-        InstX8632Movsx(Func, Dest, Source);
-  }
-  void emit(const Cfg *Func) const override;
-  void dump(const Cfg *Func) const override;
-  static bool classof(const Inst *Inst) { return isClassof(Inst, Movsx); }
-
-private:
-  InstX8632Movsx(Cfg *Func, Variable *Dest, Operand *Source);
-  InstX8632Movsx(const InstX8632Movsx &) = delete;
-  InstX8632Movsx &operator=(const InstX8632Movsx &) = delete;
-  ~InstX8632Movsx() override {}
-};
-
-// Movzx - copy from a narrower integer type to a wider integer
-// type, with zero extension.
-class InstX8632Movzx : public InstX8632 {
-public:
-  static InstX8632Movzx *create(Cfg *Func, Variable *Dest, Operand *Source) {
-    return new (Func->allocate<InstX8632Movzx>())
-        InstX8632Movzx(Func, Dest, Source);
-  }
-  void emit(const Cfg *Func) const override;
-  void dump(const Cfg *Func) const override;
-  static bool classof(const Inst *Inst) { return isClassof(Inst, Movzx); }
-
-private:
-  InstX8632Movzx(Cfg *Func, Variable *Dest, Operand *Source);
-  InstX8632Movzx(const InstX8632Movzx &) = delete;
-  InstX8632Movzx &operator=(const InstX8632Movzx &) = delete;
-  ~InstX8632Movzx() override {}
-};
-
 // Nop instructions of varying length
 class InstX8632Nop : public InstX8632 {
 public:
   // TODO: Replace with enum.
   typedef unsigned NopVariant;
 
   static InstX8632Nop *create(Cfg *Func, NopVariant Variant) {
     return new (Func->allocate<InstX8632Nop>()) InstX8632Nop(Func, Variant);
   }
   void emit(const Cfg *Func) const override;
@@ skipping 182 matching lines @@
 template <> void InstX8632Cbwdq::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Div::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Idiv::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Imul::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Insertps::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Movd::emitIAS(const Cfg *Func) const;
 template <> void InstX8632MovssRegs::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Pblendvb::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Pextr::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Pinsr::emitIAS(const Cfg *Func) const;
+template <> void InstX8632Movsx::emitIAS(const Cfg *Func) const;
+template <> void InstX8632Movzx::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Pmull::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Pshufd::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Shufps::emitIAS(const Cfg *Func) const;
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEINSTX8632_H