Subzero. ARM32. No more SP frobbing.

src/IceInstARM32.cpp

 //===- subzero/src/IceInstARM32.cpp - ARM32 instruction implementation ----===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 364 matching lines @@
   NumVars = 1;
   Variable *ShiftVar = llvm::dyn_cast_or_null<Variable>(ShiftAmt);
   if (ShiftVar)
     ++NumVars;
   Vars = Func->allocateArrayOf<Variable *>(NumVars);
   Vars[0] = Reg;
   if (ShiftVar)
     Vars[1] = ShiftVar;
 }
 
-InstARM32AdjustStack::InstARM32AdjustStack(Cfg *Func, Variable *SP,
-                                           SizeT Amount, Operand *SrcAmount)
-    : InstARM32(Func, InstARM32::Adjuststack, 2, SP), Amount(Amount) {
-  addSource(SP);
-  addSource(SrcAmount);
-}
-
 InstARM32Br::InstARM32Br(Cfg *Func, const CfgNode *TargetTrue,
                          const CfgNode *TargetFalse,
                          const InstARM32Label *Label, CondARM32::Cond Pred)
     : InstARM32Pred(Func, InstARM32::Br, 0, nullptr, Pred),
       TargetTrue(TargetTrue), TargetFalse(TargetFalse), Label(Label) {}
 
 bool InstARM32Br::optimizeBranch(const CfgNode *NextNode) {
   // If there is no next block, then there can be no fallthrough to optimize.
   if (NextNode == nullptr)
     return false;
@@ skipping 863 matching lines @@
   Ostream &Str = Func->getContext()->getStrDump();
   Str << "pop"
       << " ";
   for (SizeT I = 0; I < Dests.size(); ++I) {
     if (I > 0)
       Str << ", ";
     Dests[I]->dump(Func);
   }
 }
 
-void InstARM32AdjustStack::emit(const Cfg *Func) const {
-  if (!BuildDefs::dump())
-    return;
-  Ostream &Str = Func->getContext()->getStrEmit();
-  assert(getSrcSize() == 2);
-  Str << "\t"
-      << "sub"
-      << "\t";
-  getDest()->emit(Func);
-  Str << ", ";
-  getSrc(0)->emit(Func);
-  Str << ", ";
-  getSrc(1)->emit(Func);
-  Func->getTarget()->updateStackAdjustment(Amount);
-}
-
-void InstARM32AdjustStack::dump(const Cfg *Func) const {
-  if (!BuildDefs::dump())
-    return;
-  Ostream &Str = Func->getContext()->getStrDump();
-  getDest()->dump(Func);
-  Str << " = sub.i32 ";
-  getSrc(0)->dump(Func);
-  Str << ", " << Amount << " ; ";
-  getSrc(1)->dump(Func);
-}
-
 void InstARM32Push::emit(const Cfg *Func) const {
   // TODO(jpp): Improve FP register save/restore.
   if (!BuildDefs::dump())
     return;
   SizeT IntegerCount = 0;
   for (SizeT i = 0; i < getSrcSize(); ++i) {
     if (isScalarIntegerType(getSrc(i)->getType())) {
       ++IntegerCount;
     }
   }
@@ skipping 613 matching lines @@
 template class InstARM32UnaryopFP<InstARM32::Vsqrt>;
 
 template class InstARM32FourAddrGPR<InstARM32::Mla>;
 template class InstARM32FourAddrGPR<InstARM32::Mls>;
 
 template class InstARM32CmpLike<InstARM32::Cmn>;
 template class InstARM32CmpLike<InstARM32::Cmp>;
 template class InstARM32CmpLike<InstARM32::Tst>;
 
 } // end of namespace Ice