S390: Initial impl of turbofan compiler

src/compiler/s390/instruction-scheduler-s390.cc

Index: src/compiler/s390/instruction-scheduler-s390.cc
diff --git a/src/compiler/s390/instruction-scheduler-s390.cc b/src/compiler/s390/instruction-scheduler-s390.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a29f5f67b50db545ae133de6a2d9224b8d6c0b1b
--- /dev/null
+++ b/src/compiler/s390/instruction-scheduler-s390.cc
@@ -0,0 +1,157 @@
+// Copyright 2015 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 kS390_And:
+    case kS390_AndComplement:
+    case kS390_Or:
+    case kS390_OrComplement:
+    case kS390_Xor:
+    case kS390_ShiftLeft32:
+    case kS390_ShiftLeft64:
+    case kS390_ShiftRight32:
+    case kS390_ShiftRight64:
+    case kS390_ShiftRightAlg32:
+    case kS390_ShiftRightAlg64:
+    case kS390_RotRight32:
+    case kS390_RotRight64:
+    case kS390_Not:
+    case kS390_RotLeftAndMask32:
+    case kS390_RotLeftAndClear64:
+    case kS390_RotLeftAndClearLeft64:
+    case kS390_RotLeftAndClearRight64:
+    case kS390_Add:
+    case kS390_AddWithOverflow32:
+    case kS390_AddFloat:
+    case kS390_AddDouble:
+    case kS390_Sub:
+    case kS390_SubWithOverflow32:
+    case kS390_SubFloat:
+    case kS390_SubDouble:
+    case kS390_Mul32:
+    case kS390_Mul64:
+    case kS390_MulHigh32:
+    case kS390_MulHighU32:
+    case kS390_MulFloat:
+    case kS390_MulDouble:
+    case kS390_Div32:
+    case kS390_Div64:
+    case kS390_DivU32:
+    case kS390_DivU64:
+    case kS390_DivFloat:
+    case kS390_DivDouble:
+    case kS390_Mod32:
+    case kS390_Mod64:
+    case kS390_ModU32:
+    case kS390_ModU64:
+    case kS390_ModDouble:
+    case kS390_Neg:
+    case kS390_NegDouble:
+    case kS390_SqrtFloat:
+    case kS390_FloorFloat:
+    case kS390_CeilFloat:
+    case kS390_TruncateFloat:
+    case kS390_AbsFloat:
+    case kS390_SqrtDouble:
+    case kS390_FloorDouble:
+    case kS390_CeilDouble:
+    case kS390_TruncateDouble:
+    case kS390_RoundDouble:
+    case kS390_MaxDouble:
+    case kS390_MinDouble:
+    case kS390_AbsDouble:
+    case kS390_Cntlz32:
+    case kS390_Cntlz64:
+    case kS390_Popcnt32:
+    case kS390_Popcnt64:
+    case kS390_Cmp32:
+    case kS390_Cmp64:
+    case kS390_CmpFloat:
+    case kS390_CmpDouble:
+    case kS390_Tst32:
+    case kS390_Tst64:
+    case kS390_ExtendSignWord8:
+    case kS390_ExtendSignWord16:
+    case kS390_ExtendSignWord32:
+    case kS390_Uint32ToUint64:
+    case kS390_Int64ToInt32:
+    case kS390_Int64ToFloat32:
+    case kS390_Int64ToDouble:
+    case kS390_Uint64ToFloat32:
+    case kS390_Uint64ToDouble:
+    case kS390_Int32ToFloat32:
+    case kS390_Int32ToDouble:
+    case kS390_Uint32ToFloat32:
+    case kS390_Uint32ToDouble:
+    case kS390_Float32ToInt32:
+    case kS390_Float32ToUint32:
+    case kS390_Float32ToUint64:
+    case kS390_Float32ToDouble:
+    case kS390_DoubleToInt32:
+    case kS390_DoubleToUint32:
+    case kS390_Float32ToInt64:
+    case kS390_DoubleToInt64:
+    case kS390_DoubleToUint64:
+    case kS390_DoubleToFloat32:
+    case kS390_DoubleExtractLowWord32:
+    case kS390_DoubleExtractHighWord32:
+    case kS390_DoubleInsertLowWord32:
+    case kS390_DoubleInsertHighWord32:
+    case kS390_DoubleConstruct:
+    case kS390_BitcastInt32ToFloat32:
+    case kS390_BitcastFloat32ToInt32:
+    case kS390_BitcastInt64ToDouble:
+    case kS390_BitcastDoubleToInt64:
+      return kNoOpcodeFlags;
+
+    case kS390_LoadWordS8:
+    case kS390_LoadWordU8:
+    case kS390_LoadWordS16:
+    case kS390_LoadWordU16:
+    case kS390_LoadWordS32:
+    case kS390_LoadWord64:
+    case kS390_LoadFloat32:
+    case kS390_LoadDouble:
+      return kIsLoadOperation;
+
+    case kS390_StoreWord8:
+    case kS390_StoreWord16:
+    case kS390_StoreWord32:
+    case kS390_StoreWord64:
+    case kS390_StoreFloat32:
+    case kS390_StoreDouble:
+    case kS390_Push:
+    case kS390_PushFrame:
+    case kS390_StoreToStackSlot:
+      return kHasSideEffect;
+
+#define CASE(Name) case k##Name:
+      COMMON_ARCH_OPCODE_LIST(CASE)
+#undef CASE
+      // Already covered in architecture independent code.
+      UNREACHABLE();
+  }
+
+  UNREACHABLE();
+  return kNoOpcodeFlags;
+}
+
+int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
+  // TODO(all): Add instruction cost modeling.
+  return 1;
+}
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8