1 files changed, 607 insertions, 0 deletions
diff --git a/js/src/jit/arm/LIR-arm.h b/js/src/jit/arm/LIR-arm.h
new file mode 100644
index 0000000000..13313da7f8
--- /dev/null
+++ b/js/src/jit/arm/LIR-arm.h
@@ -0,0 +1,607 @@
+/* -*- 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_arm_LIR_arm_h
+#define jit_arm_LIR_arm_h
+
+namespace js {
+namespace jit {
+
+class LBoxFloatingPoint : public LInstructionHelper<2, 1, 1> {
+  MIRType type_;
+
+ public:
+  LIR_HEADER(BoxFloatingPoint);
+
+  LBoxFloatingPoint(const LAllocation& in, const LDefinition& temp,
+                    MIRType type)
+      : LInstructionHelper(classOpcode), type_(type) {
+    setOperand(0, in);
+    setTemp(0, temp);
+  }
+
+  MIRType type() const { return type_; }
+  const char* extraName() const { return StringFromMIRType(type_); }
+};
+
+class LUnbox : public LInstructionHelper<1, 2, 0> {
+ public:
+  LIR_HEADER(Unbox);
+
+  LUnbox() : LInstructionHelper(classOpcode) {}
+
+  MUnbox* mir() const { return mir_->toUnbox(); }
+  const LAllocation* payload() { return getOperand(0); }
+  const LAllocation* type() { return getOperand(1); }
+  const char* extraName() const { return StringFromMIRType(mir()->type()); }
+};
+
+class LUnboxFloatingPoint : public LInstructionHelper<1, 2, 0> {
+  MIRType type_;
+
+ public:
+  LIR_HEADER(UnboxFloatingPoint);
+
+  static const size_t Input = 0;
+
+  LUnboxFloatingPoint(const LBoxAllocation& input, MIRType type)
+      : LInstructionHelper(classOpcode), type_(type) {
+    setBoxOperand(Input, input);
+  }
+
+  MUnbox* mir() const { return mir_->toUnbox(); }
+
+  MIRType type() const { return type_; }
+  const char* extraName() const { return StringFromMIRType(type_); }
+};
+
+// Convert a 32-bit unsigned integer to a double.
+class LWasmUint32ToDouble : public LInstructionHelper<1, 1, 0> {
+ public:
+  LIR_HEADER(WasmUint32ToDouble)
+
+  explicit LWasmUint32ToDouble(const LAllocation& input)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, input);
+  }
+};
+
+// Convert a 32-bit unsigned integer to a float32.
+class LWasmUint32ToFloat32 : public LInstructionHelper<1, 1, 0> {
+ public:
+  LIR_HEADER(WasmUint32ToFloat32)
+
+  explicit LWasmUint32ToFloat32(const LAllocation& input)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, input);
+  }
+};
+
+class LDivI : public LBinaryMath<1> {
+ public:
+  LIR_HEADER(DivI);
+
+  LDivI(const LAllocation& lhs, const LAllocation& rhs, const LDefinition& temp)
+      : LBinaryMath(classOpcode) {
+    setOperand(0, lhs);
+    setOperand(1, rhs);
+    setTemp(0, temp);
+  }
+
+  MDiv* mir() const { return mir_->toDiv(); }
+};
+
+class LDivOrModI64
+    : public LCallInstructionHelper<INT64_PIECES, INT64_PIECES * 2 + 1, 0> {
+ public:
+  LIR_HEADER(DivOrModI64)
+
+  static const size_t Lhs = 0;
+  static const size_t Rhs = INT64_PIECES;
+  static const size_t Tls = 2 * INT64_PIECES;
+
+  LDivOrModI64(const LInt64Allocation& lhs, const LInt64Allocation& rhs,
+               const LAllocation& tls)
+      : LCallInstructionHelper(classOpcode) {
+    setInt64Operand(Lhs, lhs);
+    setInt64Operand(Rhs, rhs);
+    setOperand(Tls, tls);
+  }
+
+  MDefinition* mir() const {
+    MOZ_ASSERT(mir_->isWasmBuiltinDivI64() || mir_->isWasmBuiltinModI64());
+    return mir_;
+  }
+  bool canBeDivideByZero() const {
+    if (mir_->isWasmBuiltinModI64()) {
+      return mir_->toWasmBuiltinModI64()->canBeDivideByZero();
+    }
+    return mir_->toWasmBuiltinDivI64()->canBeDivideByZero();
+  }
+  bool canBeNegativeOverflow() const {
+    if (mir_->isWasmBuiltinModI64()) {
+      return mir_->toWasmBuiltinModI64()->canBeNegativeDividend();
+    }
+    return mir_->toWasmBuiltinDivI64()->canBeNegativeOverflow();
+  }
+  wasm::BytecodeOffset bytecodeOffset() const {
+    MOZ_ASSERT(mir_->isWasmBuiltinDivI64() || mir_->isWasmBuiltinModI64());
+    if (mir_->isWasmBuiltinModI64()) {
+      return mir_->toWasmBuiltinModI64()->bytecodeOffset();
+    }
+    return mir_->toWasmBuiltinDivI64()->bytecodeOffset();
+  }
+};
+
+class LUDivOrModI64
+    : public LCallInstructionHelper<INT64_PIECES, INT64_PIECES * 2 + 1, 0> {
+ public:
+  LIR_HEADER(UDivOrModI64)
+
+  static const size_t Lhs = 0;
+  static const size_t Rhs = INT64_PIECES;
+  static const size_t Tls = 2 * INT64_PIECES;
+
+  LUDivOrModI64(const LInt64Allocation& lhs, const LInt64Allocation& rhs,
+                const LAllocation& tls)
+      : LCallInstructionHelper(classOpcode) {
+    setInt64Operand(Lhs, lhs);
+    setInt64Operand(Rhs, rhs);
+    setOperand(Tls, tls);
+  }
+
+  MDefinition* mir() const {
+    MOZ_ASSERT(mir_->isWasmBuiltinDivI64() || mir_->isWasmBuiltinModI64());
+    return mir_;
+  }
+  bool canBeDivideByZero() const {
+    if (mir_->isWasmBuiltinModI64()) {
+      return mir_->toWasmBuiltinModI64()->canBeDivideByZero();
+    }
+    return mir_->toWasmBuiltinDivI64()->canBeDivideByZero();
+  }
+  bool canBeNegativeOverflow() const {
+    if (mir_->isWasmBuiltinModI64()) {
+      return mir_->toWasmBuiltinModI64()->canBeNegativeDividend();
+    }
+    return mir_->toWasmBuiltinDivI64()->canBeNegativeOverflow();
+  }
+  wasm::BytecodeOffset bytecodeOffset() const {
+    MOZ_ASSERT(mir_->isWasmBuiltinDivI64() || mir_->isWasmBuiltinModI64());
+    if (mir_->isWasmBuiltinModI64()) {
+      return mir_->toWasmBuiltinModI64()->bytecodeOffset();
+    }
+    return mir_->toWasmBuiltinDivI64()->bytecodeOffset();
+  }
+};
+
+// LSoftDivI is a software divide for ARM cores that don't support a hardware
+// divide instruction, implemented as a C++ native call.
+class LSoftDivI : public LBinaryCallInstructionHelper<1, 0> {
+ public:
+  LIR_HEADER(SoftDivI);
+
+  LSoftDivI(const LAllocation& lhs, const LAllocation& rhs)
+      : LBinaryCallInstructionHelper(classOpcode) {
+    setOperand(0, lhs);
+    setOperand(1, rhs);
+  }
+
+  MDiv* mir() const { return mir_->toDiv(); }
+};
+
+class LDivPowTwoI : public LInstructionHelper<1, 1, 0> {
+  const int32_t shift_;
+
+ public:
+  LIR_HEADER(DivPowTwoI)
+
+  LDivPowTwoI(const LAllocation& lhs, int32_t shift)
+      : LInstructionHelper(classOpcode), shift_(shift) {
+    setOperand(0, lhs);
+  }
+
+  const LAllocation* numerator() { return getOperand(0); }
+
+  int32_t shift() { return shift_; }
+
+  MDiv* mir() const { return mir_->toDiv(); }
+};
+
+class LModI : public LBinaryMath<0> {
+ public:
+  LIR_HEADER(ModI);
+
+  LModI(const LAllocation& lhs, const LAllocation& rhs)
+      : LBinaryMath(classOpcode) {
+    setOperand(0, lhs);
+    setOperand(1, rhs);
+  }
+
+  MMod* mir() const { return mir_->toMod(); }
+};
+
+class LSoftModI : public LBinaryCallInstructionHelper<1, 1> {
+ public:
+  LIR_HEADER(SoftModI);
+
+  LSoftModI(const LAllocation& lhs, const LAllocation& rhs,
+            const LDefinition& temp)
+      : LBinaryCallInstructionHelper(classOpcode) {
+    setOperand(0, lhs);
+    setOperand(1, rhs);
+    setTemp(0, temp);
+  }
+
+  const LDefinition* callTemp() { return getTemp(0); }
+
+  MMod* mir() const { return mir_->toMod(); }
+};
+
+class LModPowTwoI : public LInstructionHelper<1, 1, 0> {
+  const int32_t shift_;
+
+ public:
+  LIR_HEADER(ModPowTwoI);
+  int32_t shift() { return shift_; }
+
+  LModPowTwoI(const LAllocation& lhs, int32_t shift)
+      : LInstructionHelper(classOpcode), shift_(shift) {
+    setOperand(0, lhs);
+  }
+
+  MMod* mir() const { return mir_->toMod(); }
+};
+
+class LModMaskI : public LInstructionHelper<1, 1, 2> {
+  const int32_t shift_;
+
+ public:
+  LIR_HEADER(ModMaskI);
+
+  LModMaskI(const LAllocation& lhs, const LDefinition& temp1,
+            const LDefinition& temp2, int32_t shift)
+      : LInstructionHelper(classOpcode), shift_(shift) {
+    setOperand(0, lhs);
+    setTemp(0, temp1);
+    setTemp(1, temp2);
+  }
+
+  int32_t shift() const { return shift_; }
+
+  MMod* mir() const { return mir_->toMod(); }
+};
+
+// Takes a tableswitch with an integer to decide.
+class LTableSwitch : public LInstructionHelper<0, 1, 1> {
+ public:
+  LIR_HEADER(TableSwitch);
+
+  LTableSwitch(const LAllocation& in, const LDefinition& inputCopy,
+               MTableSwitch* ins)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, in);
+    setTemp(0, inputCopy);
+    setMir(ins);
+  }
+
+  MTableSwitch* mir() const { return mir_->toTableSwitch(); }
+
+  const LAllocation* index() { return getOperand(0); }
+  const LDefinition* tempInt() { return getTemp(0); }
+  // This is added to share the same CodeGenerator prefixes.
+  const LDefinition* tempPointer() { return nullptr; }
+};
+
+// Takes a tableswitch with an integer to decide.
+class LTableSwitchV : public LInstructionHelper<0, BOX_PIECES, 2> {
+ public:
+  LIR_HEADER(TableSwitchV);
+
+  LTableSwitchV(const LBoxAllocation& input, const LDefinition& inputCopy,
+                const LDefinition& floatCopy, MTableSwitch* ins)
+      : LInstructionHelper(classOpcode) {
+    setBoxOperand(InputValue, input);
+    setTemp(0, inputCopy);
+    setTemp(1, floatCopy);
+    setMir(ins);
+  }
+
+  MTableSwitch* mir() const { return mir_->toTableSwitch(); }
+
+  static const size_t InputValue = 0;
+
+  const LDefinition* tempInt() { return getTemp(0); }
+  const LDefinition* tempFloat() { return getTemp(1); }
+  const LDefinition* tempPointer() { return nullptr; }
+};
+
+class LMulI : public LBinaryMath<0> {
+ public:
+  LIR_HEADER(MulI);
+
+  LMulI() : LBinaryMath(classOpcode) {}
+
+  MMul* mir() { return mir_->toMul(); }
+};
+
+class LUDiv : public LBinaryMath<0> {
+ public:
+  LIR_HEADER(UDiv);
+
+  LUDiv() : LBinaryMath(classOpcode) {}
+
+  MDiv* mir() { return mir_->toDiv(); }
+};
+
+class LUMod : public LBinaryMath<0> {
+ public:
+  LIR_HEADER(UMod);
+
+  LUMod() : LBinaryMath(classOpcode) {}
+
+  MMod* mir() { return mir_->toMod(); }
+};
+
+class LSoftUDivOrMod : public LBinaryCallInstructionHelper<1, 0> {
+ public:
+  LIR_HEADER(SoftUDivOrMod);
+
+  LSoftUDivOrMod(const LAllocation& lhs, const LAllocation& rhs)
+      : LBinaryCallInstructionHelper(classOpcode) {
+    setOperand(0, lhs);
+    setOperand(1, rhs);
+  }
+
+  MInstruction* mir() { return mir_->toInstruction(); }
+};
+
+class LWasmTruncateToInt64 : public LCallInstructionHelper<INT64_PIECES, 2, 0> {
+  static const size_t Input = 0;
+  static const size_t Tls = 1;
+
+ public:
+  LIR_HEADER(WasmTruncateToInt64);
+
+  LWasmTruncateToInt64(const LAllocation& in, const LAllocation& tls)
+      : LCallInstructionHelper(classOpcode) {
+    setOperand(Input, in);
+    setOperand(Tls, tls);
+  }
+
+  LAllocation* input() { return getOperand(Input); }
+  LAllocation* tls() { return getOperand(Tls); }
+
+  MWasmBuiltinTruncateToInt64* mir() const {
+    return mir_->toWasmBuiltinTruncateToInt64();
+  }
+};
+
+class LInt64ToFloatingPointCall
+    : public LCallInstructionHelper<1, INT64_PIECES + 1, 0> {
+ public:
+  LIR_HEADER(Int64ToFloatingPointCall);
+
+  static const size_t Input = 0;
+  static const size_t Tls = INT64_PIECES;
+
+  LInt64ToFloatingPointCall(const LInt64Allocation& in, const LAllocation& tls)
+      : LCallInstructionHelper(classOpcode) {
+    setInt64Operand(Input, in);
+    setOperand(Tls, tls);
+  }
+
+  LAllocation* input() { return getOperand(Input); }
+  LAllocation* tls() { return getOperand(Tls); }
+
+  MBuiltinInt64ToFloatingPoint* mir() const {
+    return mir_->toBuiltinInt64ToFloatingPoint();
+  }
+};
+
+namespace details {
+
+// Base class for the int64 and non-int64 variants.
+template <size_t NumDefs>
+class LWasmUnalignedLoadBase : public details::LWasmLoadBase<NumDefs, 4> {
+ public:
+  typedef LWasmLoadBase<NumDefs, 4> Base;
+  explicit LWasmUnalignedLoadBase(LNode::Opcode opcode, const LAllocation& ptr,
+                                  const LDefinition& ptrCopy,
+                                  const LDefinition& temp1,
+                                  const LDefinition& temp2,
+                                  const LDefinition& temp3)
+      : Base(opcode, ptr, LAllocation()) {
+    Base::setTemp(0, ptrCopy);
+    Base::setTemp(1, temp1);
+    Base::setTemp(2, temp2);
+    Base::setTemp(3, temp3);
+  }
+
+  const LDefinition* ptrCopy() { return Base::getTemp(0); }
+};
+
+}  // namespace details
+
+class LWasmUnalignedLoad : public details::LWasmUnalignedLoadBase<1> {
+ public:
+  explicit LWasmUnalignedLoad(const LAllocation& ptr,
+                              const LDefinition& ptrCopy,
+                              const LDefinition& temp1,
+                              const LDefinition& temp2,
+                              const LDefinition& temp3)
+      : LWasmUnalignedLoadBase(classOpcode, ptr, ptrCopy, temp1, temp2, temp3) {
+  }
+  LIR_HEADER(WasmUnalignedLoad);
+};
+
+class LWasmUnalignedLoadI64
+    : public details::LWasmUnalignedLoadBase<INT64_PIECES> {
+ public:
+  explicit LWasmUnalignedLoadI64(const LAllocation& ptr,
+                                 const LDefinition& ptrCopy,
+                                 const LDefinition& temp1,
+                                 const LDefinition& temp2,
+                                 const LDefinition& temp3)
+      : LWasmUnalignedLoadBase(classOpcode, ptr, ptrCopy, temp1, temp2, temp3) {
+  }
+  LIR_HEADER(WasmUnalignedLoadI64);
+};
+
+namespace details {
+
+// Base class for the int64 and non-int64 variants.
+template <size_t NumOps>
+class LWasmUnalignedStoreBase : public LInstructionHelper<0, NumOps, 2> {
+ public:
+  typedef LInstructionHelper<0, NumOps, 2> Base;
+
+  static const uint32_t ValueIndex = 1;
+
+  LWasmUnalignedStoreBase(LNode::Opcode opcode, const LAllocation& ptr,
+                          const LDefinition& ptrCopy,
+                          const LDefinition& valueHelper)
+      : Base(opcode) {
+    Base::setOperand(0, ptr);
+    Base::setTemp(0, ptrCopy);
+    Base::setTemp(1, valueHelper);
+  }
+  MWasmStore* mir() const { return Base::mir_->toWasmStore(); }
+  const LDefinition* ptrCopy() { return Base::getTemp(0); }
+  const LDefinition* valueHelper() { return Base::getTemp(1); }
+};
+
+}  // namespace details
+
+class LWasmUnalignedStore : public details::LWasmUnalignedStoreBase<2> {
+ public:
+  LIR_HEADER(WasmUnalignedStore);
+  LWasmUnalignedStore(const LAllocation& ptr, const LAllocation& value,
+                      const LDefinition& ptrCopy,
+                      const LDefinition& valueHelper)
+      : LWasmUnalignedStoreBase(classOpcode, ptr, ptrCopy, valueHelper) {
+    setOperand(1, value);
+  }
+};
+
+class LWasmUnalignedStoreI64
+    : public details::LWasmUnalignedStoreBase<1 + INT64_PIECES> {
+ public:
+  LIR_HEADER(WasmUnalignedStoreI64);
+  LWasmUnalignedStoreI64(const LAllocation& ptr, const LInt64Allocation& value,
+                         const LDefinition& ptrCopy,
+                         const LDefinition& valueHelper)
+      : LWasmUnalignedStoreBase(classOpcode, ptr, ptrCopy, valueHelper) {
+    setInt64Operand(1, value);
+  }
+};
+
+class LWasmAtomicLoadI64 : public LInstructionHelper<INT64_PIECES, 1, 0> {
+ public:
+  LIR_HEADER(WasmAtomicLoadI64);
+
+  explicit LWasmAtomicLoadI64(const LAllocation& ptr)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, ptr);
+  }
+
+  MWasmLoad* mir() const { return mir_->toWasmLoad(); }
+  const LAllocation* ptr() { return getOperand(0); }
+};
+
+class LWasmAtomicStoreI64 : public LInstructionHelper<0, 1 + INT64_PIECES, 2> {
+ public:
+  LIR_HEADER(WasmAtomicStoreI64);
+
+  LWasmAtomicStoreI64(const LAllocation& ptr, const LInt64Allocation& value,
+                      const LDefinition& tmpLow, const LDefinition& tmpHigh)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, ptr);
+    setInt64Operand(1, value);
+    setTemp(0, tmpLow);
+    setTemp(1, tmpHigh);
+  }
+
+  MWasmStore* mir() const { return mir_->toWasmStore(); }
+  const LAllocation* ptr() { return getOperand(0); }
+  const LInt64Allocation value() { return getInt64Operand(1); }
+  const LDefinition* tmpLow() { return getTemp(0); }
+  const LDefinition* tmpHigh() { return getTemp(1); }
+};
+
+class LWasmCompareExchangeI64
+    : public LInstructionHelper<INT64_PIECES, 1 + 2 * INT64_PIECES, 0> {
+ public:
+  LIR_HEADER(WasmCompareExchangeI64);
+
+  LWasmCompareExchangeI64(const LAllocation& ptr,
+                          const LInt64Allocation& expected,
+                          const LInt64Allocation& replacement)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, ptr);
+    setInt64Operand(1, expected);
+    setInt64Operand(1 + INT64_PIECES, replacement);
+  }
+
+  MWasmCompareExchangeHeap* mir() const {
+    return mir_->toWasmCompareExchangeHeap();
+  }
+  const LAllocation* ptr() { return getOperand(0); }
+  const LInt64Allocation expected() { return getInt64Operand(1); }
+  const LInt64Allocation replacement() {
+    return getInt64Operand(1 + INT64_PIECES);
+  }
+};
+
+class LWasmAtomicBinopI64
+    : public LInstructionHelper<INT64_PIECES, 1 + INT64_PIECES, 2> {
+  const wasm::MemoryAccessDesc& access_;
+  AtomicOp op_;
+
+ public:
+  LIR_HEADER(WasmAtomicBinopI64);
+
+  LWasmAtomicBinopI64(const LAllocation& ptr, const LInt64Allocation& value,
+                      const LDefinition& tmpLow, const LDefinition& tmpHigh,
+                      const wasm::MemoryAccessDesc& access, AtomicOp op)
+      : LInstructionHelper(classOpcode), access_(access), op_(op) {
+    setOperand(0, ptr);
+    setInt64Operand(1, value);
+    setTemp(0, tmpLow);
+    setTemp(1, tmpHigh);
+  }
+
+  const LAllocation* ptr() { return getOperand(0); }
+  const LInt64Allocation value() { return getInt64Operand(1); }
+  const wasm::MemoryAccessDesc& access() { return access_; }
+  AtomicOp operation() const { return op_; }
+  const LDefinition* tmpLow() { return getTemp(0); }
+  const LDefinition* tmpHigh() { return getTemp(1); }
+};
+
+class LWasmAtomicExchangeI64
+    : public LInstructionHelper<INT64_PIECES, 1 + INT64_PIECES, 0> {
+  const wasm::MemoryAccessDesc& access_;
+
+ public:
+  LIR_HEADER(WasmAtomicExchangeI64);
+
+  LWasmAtomicExchangeI64(const LAllocation& ptr, const LInt64Allocation& value,
+                         const wasm::MemoryAccessDesc& access)
+      : LInstructionHelper(classOpcode), access_(access) {
+    setOperand(0, ptr);
+    setInt64Operand(1, value);
+  }
+
+  const LAllocation* ptr() { return getOperand(0); }
+  const LInt64Allocation value() { return getInt64Operand(1); }
+  const wasm::MemoryAccessDesc& access() { return access_; }
+};
+
+}  // namespace jit
+}  // namespace js
+
+#endif /* jit_arm_LIR_arm_h */