Unify alloca, outgoing arg, and prolog construction

src/IceInstX86BaseImpl.h

 //===- subzero/src/IceInstX86BaseImpl.h - Generic X86 instructions -*- C++ -*=//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 39 matching lines @@
                                         InstArithmetic::OpKind Op,
                                         Variable *Beacon)
     : InstX86Base<Machine>(Func, InstX86Base<Machine>::FakeRMW, 3, nullptr),
       Op(Op) {
   this->addSource(Data);
   this->addSource(Addr);
   this->addSource(Beacon);
 }
 
 template <class Machine>
-InstX86AdjustStack<Machine>::InstX86AdjustStack(Cfg *Func, int32_t Amount,
-                                                Variable *Esp)
-    : InstX86Base<Machine>(Func, InstX86Base<Machine>::Adjuststack, 1, Esp),
-      Amount(Amount) {
-  this->addSource(Esp);
-}
-
-template <class Machine>
 InstX86Mul<Machine>::InstX86Mul(Cfg *Func, Variable *Dest, Variable *Source1,
                                 Operand *Source2)
     : InstX86Base<Machine>(Func, InstX86Base<Machine>::Mul, 2, Dest) {
   this->addSource(Source1);
   this->addSource(Source2);
 }
 
 template <class Machine>
 InstX86Shld<Machine>::InstX86Shld(Cfg *Func, Variable *Dest, Variable *Source1,
                                   Operand *Source2)
@@ skipping 2822 matching lines @@
 
 template <class Machine> void InstX86Pop<Machine>::dump(const Cfg *Func) const {
   if (!BuildDefs::dump())
     return;
   Ostream &Str = Func->getContext()->getStrDump();
   this->dumpDest(Func);
   Str << " = pop." << this->getDest()->getType() << " ";
 }
 
 template <class Machine>
-void InstX86AdjustStack<Machine>::emit(const Cfg *Func) const {
-  if (!BuildDefs::dump())
-    return;
-  Ostream &Str = Func->getContext()->getStrEmit();
-  if (Amount > 0)
-    Str << "\tsubl\t$" << Amount << ", %esp";
-  else
-    Str << "\taddl\t$" << -Amount << ", %esp";
-  auto *Target = InstX86Base<Machine>::getTarget(Func);
-  Target->updateStackAdjustment(Amount);
-}
-
-template <class Machine>
-void InstX86AdjustStack<Machine>::emitIAS(const Cfg *Func) const {
-  typename InstX86Base<Machine>::Traits::Assembler *Asm =
-      Func->getAssembler<typename InstX86Base<Machine>::Traits::Assembler>();
-  if (Amount > 0)
-    Asm->sub(IceType_i32,
-             InstX86Base<Machine>::Traits::RegisterSet::Encoded_Reg_esp,
-             Immediate(Amount));
-  else
-    Asm->add(IceType_i32,
-             InstX86Base<Machine>::Traits::RegisterSet::Encoded_Reg_esp,
-             Immediate(-Amount));
-  auto *Target = InstX86Base<Machine>::getTarget(Func);
-  Target->updateStackAdjustment(Amount);
-}
-
-template <class Machine>
-void InstX86AdjustStack<Machine>::dump(const Cfg *Func) const {
-  if (!BuildDefs::dump())
-    return;
-  Ostream &Str = Func->getContext()->getStrDump();
-  if (Amount > 0)
-    Str << "esp = sub.i32 esp, " << Amount;
-  else
-    Str << "esp = add.i32 esp, " << -Amount;
-}
-
-template <class Machine>
 void InstX86Push<Machine>::emit(const Cfg *Func) const {
   if (!BuildDefs::dump())
     return;
   Ostream &Str = Func->getContext()->getStrEmit();
   assert(this->getSrcSize() == 1);
   // Push is currently only used for saving GPRs.
   const auto *Var = llvm::cast<Variable>(this->getSrc(0));
   assert(Var->hasReg());
   Str << "\tpush\t";
   Var->emit(Func);
@@ skipping 274 matching lines @@
     return;
   Ostream &Str = Func->getContext()->getStrDump();
   Str << "IACA_END";
 }
 
 } // end of namespace X86Internal
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEINSTX86BASEIMPL_H