emitIAS for push -- simplify push since it's not used for args passing anymore

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 1398 matching lines @@
 
 private:
   InstX8632Pop(Cfg *Func, Variable *Dest);
   InstX8632Pop(const InstX8632Pop &) = delete;
   InstX8632Pop &operator=(const InstX8632Pop &) = delete;
   ~InstX8632Pop() override {}
 };
 
 class InstX8632Push : public InstX8632 {
 public:
-  static InstX8632Push *create(Cfg *Func, Operand *Source,
-                               bool SuppressStackAdjustment) {
+  static InstX8632Push *create(Cfg *Func, Variable *Source) {
     return new (Func->allocate<InstX8632Push>())
-        InstX8632Push(Func, Source, SuppressStackAdjustment);
+        InstX8632Push(Func, Source);
   }
   void emit(const Cfg *Func) const override;
+  void emitIAS(const Cfg *Func) const override;
   void dump(const Cfg *Func) const override;
   static bool classof(const Inst *Inst) { return isClassof(Inst, Push); }
 
 private:
-  InstX8632Push(Cfg *Func, Operand *Source, bool SuppressStackAdjustment);
+  InstX8632Push(Cfg *Func, Variable *Source);
   InstX8632Push(const InstX8632Push &) = delete;
   InstX8632Push &operator=(const InstX8632Push &) = delete;
-  bool SuppressStackAdjustment;
   ~InstX8632Push() override {}
 };
 
 // Ret instruction.  Currently only supports the "ret" version that
 // does not pop arguments.  This instruction takes a Source operand
 // (for non-void returning functions) for liveness analysis, though
 // a FakeUse before the ret would do just as well.
 class InstX8632Ret : public InstX8632 {
 public:
   static InstX8632Ret *create(Cfg *Func, Variable *Source = NULL) {
@@ skipping 90 matching lines @@
 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 InstX8632Cbwdq::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Movd::emitIAS(const Cfg *Func) const;
 template <> void InstX8632Pmull::emitIAS(const Cfg *Func) const;
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEINSTX8632_H