1 files changed, 174 insertions, 0 deletions
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 <typename T>
+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 <RegTypeName = DefaultType>
+  static SetType LiveAsIndexableSet(SetType s) {
+    return SetType(0);
+  }
+
+  template <RegTypeName Name = DefaultType>
+  static SetType AllocatableAsIndexableSet(SetType s) {
+    static_assert(Name != RegTypeName::Any, "Allocatable set are not iterable");
+    return SetType(0);
+  }
+
+  template <typename T>
+  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<FloatRegister>&) {
+    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 */