From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- js/src/jit/wasm32/Architecture-wasm32.h | 174 ++++++++++++++++++++++++++++++++ 1 file changed, 174 insertions(+) create mode 100644 js/src/jit/wasm32/Architecture-wasm32.h (limited to 'js/src/jit/wasm32/Architecture-wasm32.h') diff --git a/js/src/jit/wasm32/Architecture-wasm32.h b/js/src/jit/wasm32/Architecture-wasm32.h new file mode 100644 index 0000000000..d7726eaa5f --- /dev/null +++ b/js/src/jit/wasm32/Architecture-wasm32.h @@ -0,0 +1,174 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * vim: set ts=8 sts=2 et sw=2 tw=80: + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef jit_wasm32_Architecture_wasm32_h +#define jit_wasm32_Architecture_wasm32_h + +// JitSpewer.h is included through MacroAssembler implementations for other +// platforms, so include it here to avoid inadvertent build bustage. +#include "jit/JitSpewer.h" + +#include "jit/shared/Architecture-shared.h" + +namespace js::jit { + +static const uint32_t SimdMemoryAlignment = + 4; // Make it 4 to avoid a bunch of div-by-zero warnings +static const uint32_t WasmStackAlignment = 8; +static const uint32_t WasmTrapInstructionLength = 0; + +// See comments in wasm::GenerateFunctionPrologue. +static constexpr uint32_t WasmCheckedCallEntryOffset = 0u; + +class Registers { + public: + enum RegisterID { + sp = 0, // corresponds to global __stack_pointer which is mapped into + // global[0] + fp = 1, + r2 = 2, + r3 = 3, + invalid_reg, + invalid_reg2, // To avoid silly static_assert failures. + }; + typedef uint8_t Code; + typedef RegisterID Encoding; + union RegisterContent { + uintptr_t r; + }; + + typedef uint8_t SetType; + + static uint32_t SetSize(SetType) { MOZ_CRASH(); } + static uint32_t FirstBit(SetType) { MOZ_CRASH(); } + static uint32_t LastBit(SetType) { MOZ_CRASH(); } + static const char* GetName(Code) { MOZ_CRASH(); } + static Code FromName(const char*) { MOZ_CRASH(); } + + static const Encoding StackPointer = RegisterID::sp; + static const Encoding FramePointer = RegisterID::fp; + static const Encoding Invalid = invalid_reg; + static const uint32_t Total = 5; + static const uint32_t TotalPhys = 0; + static const uint32_t Allocatable = 0; + static const SetType AllMask = 0; + static const SetType ArgRegMask = 0; + static const SetType VolatileMask = 0; + static const SetType NonVolatileMask = 0; + static const SetType NonAllocatableMask = 0; + static const SetType AllocatableMask = 0; + static const SetType JSCallMask = 0; + static const SetType CallMask = 0; +}; + +typedef uint8_t PackedRegisterMask; + +class FloatRegisters { + public: + enum FPRegisterID { f0 = 0, invalid_reg }; + typedef FPRegisterID Code; + typedef FPRegisterID Encoding; + union RegisterContent { + float s; + double d; + }; + + typedef uint32_t SetType; + + static const char* GetName(Code) { MOZ_CRASH(); } + static Code FromName(const char*) { MOZ_CRASH(); } + + static const Code Invalid = invalid_reg; + static const uint32_t Total = 0; + static const uint32_t TotalPhys = 0; + static const uint32_t Allocatable = 0; + static const SetType AllMask = 0; + static const SetType AllDoubleMask = 0; + static const SetType AllSingleMask = 0; + static const SetType VolatileMask = 0; + static const SetType NonVolatileMask = 0; + static const SetType NonAllocatableMask = 0; + static const SetType AllocatableMask = 0; +}; + +template +class TypedRegisterSet; + +struct FloatRegister { + typedef FloatRegisters Codes; + typedef Codes::Code Code; + typedef Codes::Encoding Encoding; + typedef Codes::SetType SetType; + + Code _; + + static uint32_t FirstBit(SetType) { MOZ_CRASH(); } + static uint32_t LastBit(SetType) { MOZ_CRASH(); } + static FloatRegister FromCode(uint32_t) { MOZ_CRASH(); } + bool isSingle() const { MOZ_CRASH(); } + bool isDouble() const { MOZ_CRASH(); } + bool isSimd128() const { MOZ_CRASH(); } + bool isInvalid() const { MOZ_CRASH(); } + FloatRegister asSingle() const { MOZ_CRASH(); } + FloatRegister asDouble() const { MOZ_CRASH(); } + FloatRegister asSimd128() const { MOZ_CRASH(); } + Code code() const { MOZ_CRASH(); } + Encoding encoding() const { MOZ_CRASH(); } + const char* name() const { MOZ_CRASH(); } + bool volatile_() const { MOZ_CRASH(); } + bool operator!=(FloatRegister) const { MOZ_CRASH(); } + bool operator==(FloatRegister) const { MOZ_CRASH(); } + bool aliases(FloatRegister) const { MOZ_CRASH(); } + uint32_t numAliased() const { MOZ_CRASH(); } + FloatRegister aliased(uint32_t) { MOZ_CRASH(); } + bool equiv(FloatRegister) const { MOZ_CRASH(); } + uint32_t size() const { MOZ_CRASH(); } + uint32_t numAlignedAliased() const { MOZ_CRASH(); } + FloatRegister alignedAliased(uint32_t) { MOZ_CRASH(); } + SetType alignedOrDominatedAliasedSet() const { MOZ_CRASH(); } + + static constexpr RegTypeName DefaultType = RegTypeName::Float64; + + template + static SetType LiveAsIndexableSet(SetType s) { + return SetType(0); + } + + template + static SetType AllocatableAsIndexableSet(SetType s) { + static_assert(Name != RegTypeName::Any, "Allocatable set are not iterable"); + return SetType(0); + } + + template + static T ReduceSetForPush(T) { + MOZ_CRASH(); + } + uint32_t getRegisterDumpOffsetInBytes() { MOZ_CRASH(); } + static uint32_t SetSize(SetType x) { MOZ_CRASH(); } + static Code FromName(const char* name) { MOZ_CRASH(); } + + // This is used in static initializers, so produce a bogus value instead of + // crashing. + static uint32_t GetPushSizeInBytes(const TypedRegisterSet&) { + return 0; + } +}; + +inline bool hasUnaliasedDouble() { MOZ_CRASH(); } +inline bool hasMultiAlias() { MOZ_CRASH(); } + +static const uint32_t ShadowStackSpace = 0; +static const uint32_t JumpImmediateRange = INT32_MAX; + +#ifdef JS_NUNBOX32 +static const int32_t NUNBOX32_TYPE_OFFSET = 4; +static const int32_t NUNBOX32_PAYLOAD_OFFSET = 0; +#endif + +} // namespace js::jit + +#endif /* jit_wasm32_Architecture_wasm32_h */ -- cgit v1.2.3