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// Copyright 2012 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.
#ifndef V8_X64_FRAME_CONSTANTS_X64_H_
#define V8_X64_FRAME_CONSTANTS_X64_H_
#include "src/base/macros.h"
#include "src/frame-constants.h"
namespace v8 {
namespace internal {
class EntryFrameConstants : public AllStatic {
public:
#ifdef _WIN64
static constexpr int kCalleeSaveXMMRegisters = 10;
static constexpr int kXMMRegisterSize = 16;
static constexpr int kXMMRegistersBlockSize =
kXMMRegisterSize * kCalleeSaveXMMRegisters;
static constexpr int kCallerFPOffset =
-3 * kPointerSize + -7 * kRegisterSize - kXMMRegistersBlockSize;
#else
// We have 3 Push and 5 pushq in the JSEntryStub::GenerateBody.
static constexpr int kCallerFPOffset = -3 * kPointerSize + -5 * kRegisterSize;
#endif
static constexpr int kArgvOffset = 6 * kPointerSize;
};
class ExitFrameConstants : public TypedFrameConstants {
public:
static constexpr int kSPOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(0);
static constexpr int kCodeOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(1);
DEFINE_TYPED_FRAME_SIZES(2);
static constexpr int kCallerFPOffset = +0 * kPointerSize;
static constexpr int kCallerPCOffset = kFPOnStackSize;
// FP-relative displacement of the caller's SP. It points just
// below the saved PC.
static constexpr int kCallerSPDisplacement = kCallerPCOffset + kPCOnStackSize;
static constexpr int kConstantPoolOffset = 0; // Not used
};
class WasmCompileLazyFrameConstants : public TypedFrameConstants {
public:
static constexpr int kNumberOfSavedGpParamRegs = 6;
static constexpr int kNumberOfSavedFpParamRegs = 6;
// FP-relative.
static constexpr int kWasmInstanceOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(0);
static constexpr int kFixedFrameSizeFromFp =
TypedFrameConstants::kFixedFrameSizeFromFp +
kNumberOfSavedGpParamRegs * kPointerSize +
kNumberOfSavedFpParamRegs * kSimd128Size;
};
class JavaScriptFrameConstants : public AllStatic {
public:
// FP-relative.
static constexpr int kLocal0Offset =
StandardFrameConstants::kExpressionsOffset;
static constexpr int kLastParameterOffset = kFPOnStackSize + kPCOnStackSize;
static constexpr int kFunctionOffset =
StandardFrameConstants::kFunctionOffset;
// Caller SP-relative.
static constexpr int kParam0Offset = -2 * kPointerSize;
static constexpr int kReceiverOffset = -1 * kPointerSize;
};
} // namespace internal
} // namespace v8
#endif // V8_X64_FRAME_CONSTANTS_X64_H_
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