Revert of [WIP][turbofan] Instruction scheduler for Turbofan.

src/compiler/arm64/instruction-scheduler-arm64.cc

Index: src/compiler/arm64/instruction-scheduler-arm64.cc
diff --git a/src/compiler/arm64/instruction-scheduler-arm64.cc b/src/compiler/arm64/instruction-scheduler-arm64.cc
deleted file mode 100644
index f76cdd1a47f1457479d6f7321f16692f18bd0369..0000000000000000000000000000000000000000
--- a/src/compiler/arm64/instruction-scheduler-arm64.cc
+++ /dev/null
@@ -1,221 +0,0 @@
-// Copyright 2014 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/compiler/instruction-scheduler.h"
-
-namespace v8 {
-namespace internal {
-namespace compiler {
-
-bool InstructionScheduler::SchedulerSupported() { return true; }
-
-
-int InstructionScheduler::GetTargetInstructionFlags(
-    const Instruction* instr) const {
-  switch (instr->arch_opcode()) {
-    case kArm64Add:
-    case kArm64Add32:
-    case kArm64And:
-    case kArm64And32:
-    case kArm64Bic:
-    case kArm64Bic32:
-    case kArm64Clz:
-    case kArm64Clz32:
-    case kArm64Cmp:
-    case kArm64Cmp32:
-    case kArm64Cmn:
-    case kArm64Cmn32:
-    case kArm64Tst:
-    case kArm64Tst32:
-    case kArm64Or:
-    case kArm64Or32:
-    case kArm64Orn:
-    case kArm64Orn32:
-    case kArm64Eor:
-    case kArm64Eor32:
-    case kArm64Eon:
-    case kArm64Eon32:
-    case kArm64Sub:
-    case kArm64Sub32:
-    case kArm64Mul:
-    case kArm64Mul32:
-    case kArm64Smull:
-    case kArm64Umull:
-    case kArm64Madd:
-    case kArm64Madd32:
-    case kArm64Msub:
-    case kArm64Msub32:
-    case kArm64Mneg:
-    case kArm64Mneg32:
-    case kArm64Idiv:
-    case kArm64Idiv32:
-    case kArm64Udiv:
-    case kArm64Udiv32:
-    case kArm64Imod:
-    case kArm64Imod32:
-    case kArm64Umod:
-    case kArm64Umod32:
-    case kArm64Not:
-    case kArm64Not32:
-    case kArm64Lsl:
-    case kArm64Lsl32:
-    case kArm64Lsr:
-    case kArm64Lsr32:
-    case kArm64Asr:
-    case kArm64Asr32:
-    case kArm64Ror:
-    case kArm64Ror32:
-    case kArm64Mov32:
-    case kArm64Sxtb32:
-    case kArm64Sxth32:
-    case kArm64Sxtw:
-    case kArm64Sbfx32:
-    case kArm64Ubfx:
-    case kArm64Ubfx32:
-    case kArm64Ubfiz32:
-    case kArm64Bfi:
-    case kArm64Float32Cmp:
-    case kArm64Float32Add:
-    case kArm64Float32Sub:
-    case kArm64Float32Mul:
-    case kArm64Float32Div:
-    case kArm64Float32Max:
-    case kArm64Float32Min:
-    case kArm64Float32Abs:
-    case kArm64Float32Sqrt:
-    case kArm64Float32RoundDown:
-    case kArm64Float64Cmp:
-    case kArm64Float64Add:
-    case kArm64Float64Sub:
-    case kArm64Float64Mul:
-    case kArm64Float64Div:
-    case kArm64Float64Mod:
-    case kArm64Float64Max:
-    case kArm64Float64Min:
-    case kArm64Float64Abs:
-    case kArm64Float64Neg:
-    case kArm64Float64Sqrt:
-    case kArm64Float64RoundDown:
-    case kArm64Float64RoundTiesAway:
-    case kArm64Float64RoundTruncate:
-    case kArm64Float64RoundTiesEven:
-    case kArm64Float64RoundUp:
-    case kArm64Float32RoundTiesEven:
-    case kArm64Float32RoundTruncate:
-    case kArm64Float32RoundUp:
-    case kArm64Float32ToFloat64:
-    case kArm64Float64ToFloat32:
-    case kArm64Float64ToInt32:
-    case kArm64Float64ToUint32:
-    case kArm64Float32ToInt64:
-    case kArm64Float64ToInt64:
-    case kArm64Float32ToUint64:
-    case kArm64Float64ToUint64:
-    case kArm64Int32ToFloat64:
-    case kArm64Int64ToFloat32:
-    case kArm64Int64ToFloat64:
-    case kArm64Uint32ToFloat64:
-    case kArm64Uint64ToFloat32:
-    case kArm64Uint64ToFloat64:
-    case kArm64Float64ExtractLowWord32:
-    case kArm64Float64ExtractHighWord32:
-    case kArm64Float64InsertLowWord32:
-    case kArm64Float64InsertHighWord32:
-    case kArm64Float64MoveU64:
-    case kArm64U64MoveFloat64:
-      return kNoOpcodeFlags;
-
-    case kArm64TestAndBranch32:
-    case kArm64TestAndBranch:
-    case kArm64CompareAndBranch32:
-      return kIsBlockTerminator;
-
-    case kArm64LdrS:
-    case kArm64LdrD:
-    case kArm64Ldrb:
-    case kArm64Ldrsb:
-    case kArm64Ldrh:
-    case kArm64Ldrsh:
-    case kArm64LdrW:
-    case kArm64Ldr:
-      return kIsLoadOperation;
-
-    case kArm64ClaimForCallArguments:
-    case kArm64Poke:
-    case kArm64PokePair:
-    case kArm64StrS:
-    case kArm64StrD:
-    case kArm64Strb:
-    case kArm64Strh:
-    case kArm64StrW:
-    case kArm64Str:
-      return kHasSideEffect;
-
-#define CASE(Name) case k##Name:
-    COMMON_ARCH_OPCODE_LIST(CASE)
-#undef CASE
-      // Already covered in architecture independent code.
-      UNREACHABLE();
-  }
-}
-
-
-int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
-  // Basic latency modeling for arm64 instructions. They have been determined
-  // in an empirical way.
-  switch (instr->arch_opcode()) {
-    case kArm64Float32ToFloat64:
-    case kArm64Float64ToFloat32:
-    case kArm64Float64ToInt32:
-    case kArm64Float64ToUint32:
-    case kArm64Int32ToFloat64:
-    case kArm64Uint32ToFloat64:
-      return 3;
-
-    case kArm64Float64Add:
-    case kArm64Float64Sub:
-      return 2;
-
-    case kArm64Float64Mul:
-      return 3;
-
-    case kArm64Float64Div:
-      return 6;
-
-    case kArm64Lsl:
-    case kArm64Lsl32:
-    case kArm64Lsr:
-    case kArm64Lsr32:
-    case kArm64Asr:
-    case kArm64Asr32:
-    case kArm64Ror:
-    case kArm64Ror32:
-      return 3;
-
-    case kCheckedLoadInt8:
-    case kCheckedLoadUint8:
-    case kCheckedLoadInt16:
-    case kCheckedLoadUint16:
-    case kCheckedLoadWord32:
-    case kCheckedLoadWord64:
-    case kCheckedLoadFloat32:
-    case kCheckedLoadFloat64:
-    case kArm64LdrS:
-    case kArm64LdrD:
-    case kArm64Ldrb:
-    case kArm64Ldrsb:
-    case kArm64Ldrh:
-    case kArm64Ldrsh:
-    case kArm64LdrW:
-    case kArm64Ldr:
-      return 5;
-
-    default:
-      return 1;
-  }
-}
-
-}  // namespace compiler
-}  // namespace internal
-}  // namespace v8