Move Hydrogen and Lithium to src/crankshaft/

src/arm64/lithium-gap-resolver-arm64.cc

Index: src/arm64/lithium-gap-resolver-arm64.cc
diff --git a/src/arm64/lithium-gap-resolver-arm64.cc b/src/arm64/lithium-gap-resolver-arm64.cc
deleted file mode 100644
index 1520fa188848056e95a83da544df805fa7bf75d2..0000000000000000000000000000000000000000
--- a/src/arm64/lithium-gap-resolver-arm64.cc
+++ /dev/null
@@ -1,294 +0,0 @@
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "src/arm64/delayed-masm-arm64-inl.h"
-#include "src/arm64/lithium-codegen-arm64.h"
-#include "src/arm64/lithium-gap-resolver-arm64.h"
-
-namespace v8 {
-namespace internal {
-
-#define __ ACCESS_MASM((&masm_))
-
-
-void DelayedGapMasm::EndDelayedUse() {
-  DelayedMasm::EndDelayedUse();
-  if (scratch_register_used()) {
-    DCHECK(ScratchRegister().Is(root));
-    DCHECK(!pending());
-    InitializeRootRegister();
-    reset_scratch_register_used();
-  }
-}
-
-
-LGapResolver::LGapResolver(LCodeGen* owner)
-    : cgen_(owner), masm_(owner, owner->masm()), moves_(32, owner->zone()),
-      root_index_(0), in_cycle_(false), saved_destination_(NULL) {
-}
-
-
-void LGapResolver::Resolve(LParallelMove* parallel_move) {
-  DCHECK(moves_.is_empty());
-  DCHECK(!masm_.pending());
-
-  // Build up a worklist of moves.
-  BuildInitialMoveList(parallel_move);
-
-  for (int i = 0; i < moves_.length(); ++i) {
-    LMoveOperands move = moves_[i];
-
-    // Skip constants to perform them last. They don't block other moves
-    // and skipping such moves with register destinations keeps those
-    // registers free for the whole algorithm.
-    if (!move.IsEliminated() && !move.source()->IsConstantOperand()) {
-      root_index_ = i;  // Any cycle is found when we reach this move again.
-      PerformMove(i);
-      if (in_cycle_) RestoreValue();
-    }
-  }
-
-  // Perform the moves with constant sources.
-  for (int i = 0; i < moves_.length(); ++i) {
-    LMoveOperands move = moves_[i];
-
-    if (!move.IsEliminated()) {
-      DCHECK(move.source()->IsConstantOperand());
-      EmitMove(i);
-    }
-  }
-
-  __ EndDelayedUse();
-
-  moves_.Rewind(0);
-}
-
-
-void LGapResolver::BuildInitialMoveList(LParallelMove* parallel_move) {
-  // Perform a linear sweep of the moves to add them to the initial list of
-  // moves to perform, ignoring any move that is redundant (the source is
-  // the same as the destination, the destination is ignored and
-  // unallocated, or the move was already eliminated).
-  const ZoneList<LMoveOperands>* moves = parallel_move->move_operands();
-  for (int i = 0; i < moves->length(); ++i) {
-    LMoveOperands move = moves->at(i);
-    if (!move.IsRedundant()) moves_.Add(move, cgen_->zone());
-  }
-  Verify();
-}
-
-
-void LGapResolver::PerformMove(int index) {
-  // Each call to this function performs a move and deletes it from the move
-  // graph. We first recursively perform any move blocking this one. We
-  // mark a move as "pending" on entry to PerformMove in order to detect
-  // cycles in the move graph.
-  LMoveOperands& current_move = moves_[index];
-
-  DCHECK(!current_move.IsPending());
-  DCHECK(!current_move.IsRedundant());
-
-  // Clear this move's destination to indicate a pending move.  The actual
-  // destination is saved in a stack allocated local. Multiple moves can
-  // be pending because this function is recursive.
-  DCHECK(current_move.source() != NULL);  // Otherwise it will look eliminated.
-  LOperand* destination = current_move.destination();
-  current_move.set_destination(NULL);
-
-  // Perform a depth-first traversal of the move graph to resolve
-  // dependencies. Any unperformed, unpending move with a source the same
-  // as this one's destination blocks this one so recursively perform all
-  // such moves.
-  for (int i = 0; i < moves_.length(); ++i) {
-    LMoveOperands other_move = moves_[i];
-    if (other_move.Blocks(destination) && !other_move.IsPending()) {
-      PerformMove(i);
-      // If there is a blocking, pending move it must be moves_[root_index_]
-      // and all other moves with the same source as moves_[root_index_] are
-      // sucessfully executed (because they are cycle-free) by this loop.
-    }
-  }
-
-  // We are about to resolve this move and don't need it marked as
-  // pending, so restore its destination.
-  current_move.set_destination(destination);
-
-  // The move may be blocked on a pending move, which must be the starting move.
-  // In this case, we have a cycle, and we save the source of this move to
-  // a scratch register to break it.
-  LMoveOperands other_move = moves_[root_index_];
-  if (other_move.Blocks(destination)) {
-    DCHECK(other_move.IsPending());
-    BreakCycle(index);
-    return;
-  }
-
-  // This move is no longer blocked.
-  EmitMove(index);
-}
-
-
-void LGapResolver::Verify() {
-#ifdef ENABLE_SLOW_DCHECKS
-  // No operand should be the destination for more than one move.
-  for (int i = 0; i < moves_.length(); ++i) {
-    LOperand* destination = moves_[i].destination();
-    for (int j = i + 1; j < moves_.length(); ++j) {
-      SLOW_DCHECK(!destination->Equals(moves_[j].destination()));
-    }
-  }
-#endif
-}
-
-
-void LGapResolver::BreakCycle(int index) {
-  DCHECK(moves_[index].destination()->Equals(moves_[root_index_].source()));
-  DCHECK(!in_cycle_);
-
-  // We save in a register the source of that move and we remember its
-  // destination. Then we mark this move as resolved so the cycle is
-  // broken and we can perform the other moves.
-  in_cycle_ = true;
-  LOperand* source = moves_[index].source();
-  saved_destination_ = moves_[index].destination();
-
-  if (source->IsRegister()) {
-    AcquireSavedValueRegister();
-    __ Mov(SavedValueRegister(), cgen_->ToRegister(source));
-  } else if (source->IsStackSlot()) {
-    AcquireSavedValueRegister();
-    __ Load(SavedValueRegister(), cgen_->ToMemOperand(source));
-  } else if (source->IsDoubleRegister()) {
-    __ Fmov(SavedFPValueRegister(), cgen_->ToDoubleRegister(source));
-  } else if (source->IsDoubleStackSlot()) {
-    __ Load(SavedFPValueRegister(), cgen_->ToMemOperand(source));
-  } else {
-    UNREACHABLE();
-  }
-
-  // Mark this move as resolved.
-  // This move will be actually performed by moving the saved value to this
-  // move's destination in LGapResolver::RestoreValue().
-  moves_[index].Eliminate();
-}
-
-
-void LGapResolver::RestoreValue() {
-  DCHECK(in_cycle_);
-  DCHECK(saved_destination_ != NULL);
-
-  if (saved_destination_->IsRegister()) {
-    __ Mov(cgen_->ToRegister(saved_destination_), SavedValueRegister());
-    ReleaseSavedValueRegister();
-  } else if (saved_destination_->IsStackSlot()) {
-    __ Store(SavedValueRegister(), cgen_->ToMemOperand(saved_destination_));
-    ReleaseSavedValueRegister();
-  } else if (saved_destination_->IsDoubleRegister()) {
-    __ Fmov(cgen_->ToDoubleRegister(saved_destination_),
-            SavedFPValueRegister());
-  } else if (saved_destination_->IsDoubleStackSlot()) {
-    __ Store(SavedFPValueRegister(), cgen_->ToMemOperand(saved_destination_));
-  } else {
-    UNREACHABLE();
-  }
-
-  in_cycle_ = false;
-  saved_destination_ = NULL;
-}
-
-
-void LGapResolver::EmitMove(int index) {
-  LOperand* source = moves_[index].source();
-  LOperand* destination = moves_[index].destination();
-
-  // Dispatch on the source and destination operand kinds.  Not all
-  // combinations are possible.
-
-  if (source->IsRegister()) {
-    Register source_register = cgen_->ToRegister(source);
-    if (destination->IsRegister()) {
-      __ Mov(cgen_->ToRegister(destination), source_register);
-    } else {
-      DCHECK(destination->IsStackSlot());
-      __ Store(source_register, cgen_->ToMemOperand(destination));
-    }
-
-  } else if (source->IsStackSlot()) {
-    MemOperand source_operand = cgen_->ToMemOperand(source);
-    if (destination->IsRegister()) {
-      __ Load(cgen_->ToRegister(destination), source_operand);
-    } else {
-      DCHECK(destination->IsStackSlot());
-      EmitStackSlotMove(index);
-    }
-
-  } else if (source->IsConstantOperand()) {
-    LConstantOperand* constant_source = LConstantOperand::cast(source);
-    if (destination->IsRegister()) {
-      Register dst = cgen_->ToRegister(destination);
-      if (cgen_->IsSmi(constant_source)) {
-        __ Mov(dst, cgen_->ToSmi(constant_source));
-      } else if (cgen_->IsInteger32Constant(constant_source)) {
-        __ Mov(dst, cgen_->ToInteger32(constant_source));
-      } else {
-        __ LoadObject(dst, cgen_->ToHandle(constant_source));
-      }
-    } else if (destination->IsDoubleRegister()) {
-      DoubleRegister result = cgen_->ToDoubleRegister(destination);
-      __ Fmov(result, cgen_->ToDouble(constant_source));
-    } else {
-      DCHECK(destination->IsStackSlot());
-      DCHECK(!in_cycle_);  // Constant moves happen after all cycles are gone.
-      if (cgen_->IsSmi(constant_source)) {
-        Smi* smi = cgen_->ToSmi(constant_source);
-        __ StoreConstant(reinterpret_cast<intptr_t>(smi),
-                         cgen_->ToMemOperand(destination));
-      } else if (cgen_->IsInteger32Constant(constant_source)) {
-        __ StoreConstant(cgen_->ToInteger32(constant_source),
-                         cgen_->ToMemOperand(destination));
-      } else {
-        Handle<Object> handle = cgen_->ToHandle(constant_source);
-        AllowDeferredHandleDereference smi_object_check;
-        if (handle->IsSmi()) {
-          Object* obj = *handle;
-          DCHECK(!obj->IsHeapObject());
-          __ StoreConstant(reinterpret_cast<intptr_t>(obj),
-                           cgen_->ToMemOperand(destination));
-        } else {
-          AcquireSavedValueRegister();
-          __ LoadObject(SavedValueRegister(), handle);
-          __ Store(SavedValueRegister(), cgen_->ToMemOperand(destination));
-          ReleaseSavedValueRegister();
-        }
-      }
-    }
-
-  } else if (source->IsDoubleRegister()) {
-    DoubleRegister src = cgen_->ToDoubleRegister(source);
-    if (destination->IsDoubleRegister()) {
-      __ Fmov(cgen_->ToDoubleRegister(destination), src);
-    } else {
-      DCHECK(destination->IsDoubleStackSlot());
-      __ Store(src, cgen_->ToMemOperand(destination));
-    }
-
-  } else if (source->IsDoubleStackSlot()) {
-    MemOperand src = cgen_->ToMemOperand(source);
-    if (destination->IsDoubleRegister()) {
-      __ Load(cgen_->ToDoubleRegister(destination), src);
-    } else {
-      DCHECK(destination->IsDoubleStackSlot());
-      EmitStackSlotMove(index);
-    }
-
-  } else {
-    UNREACHABLE();
-  }
-
-  // The move has been emitted, we can eliminate it.
-  moves_[index].Eliminate();
-}
-
-}  // namespace internal
-}  // namespace v8