1 files changed, 408 insertions, 0 deletions
diff --git a/js/src/jit/loong64/LIR-loong64.h b/js/src/jit/loong64/LIR-loong64.h
new file mode 100644
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+++ b/js/src/jit/loong64/LIR-loong64.h
@@ -0,0 +1,408 @@
+/* -*- 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_loong64_LIR_loong64_h
+#define jit_loong64_LIR_loong64_h
+
+namespace js {
+namespace jit {
+
+class LUnbox : public LInstructionHelper<1, 1, 0> {
+ protected:
+  LUnbox(LNode::Opcode opcode, const LAllocation& input)
+      : LInstructionHelper(opcode) {
+    setOperand(0, input);
+  }
+
+ public:
+  LIR_HEADER(Unbox);
+
+  explicit LUnbox(const LAllocation& input) : LInstructionHelper(classOpcode) {
+    setOperand(0, input);
+  }
+
+  static const size_t Input = 0;
+
+  MUnbox* mir() const { return mir_->toUnbox(); }
+  const char* extraName() const { return StringFromMIRType(mir()->type()); }
+};
+
+class LUnboxFloatingPoint : public LUnbox {
+  MIRType type_;
+
+ public:
+  LIR_HEADER(UnboxFloatingPoint);
+
+  LUnboxFloatingPoint(const LAllocation& input, MIRType type)
+      : LUnbox(classOpcode, input), type_(type) {}
+
+  MIRType type() const { return 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 LDivPowTwoI : public LInstructionHelper<1, 1, 1> {
+  const int32_t shift_;
+
+ public:
+  LIR_HEADER(DivPowTwoI)
+
+  LDivPowTwoI(const LAllocation& lhs, int32_t shift, const LDefinition& temp)
+      : LInstructionHelper(classOpcode), shift_(shift) {
+    setOperand(0, lhs);
+    setTemp(0, temp);
+  }
+
+  const LAllocation* numerator() { return getOperand(0); }
+  int32_t shift() const { return shift_; }
+  MDiv* mir() const { return mir_->toDiv(); }
+};
+
+class LModI : public LBinaryMath<1> {
+ public:
+  LIR_HEADER(ModI);
+
+  LModI(const LAllocation& lhs, const LAllocation& rhs,
+        const LDefinition& callTemp)
+      : LBinaryMath(classOpcode) {
+    setOperand(0, lhs);
+    setOperand(1, rhs);
+    setTemp(0, callTemp);
+  }
+
+  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);
+
+  LModPowTwoI(const LAllocation& lhs, int32_t shift)
+      : LInstructionHelper(classOpcode), shift_(shift) {
+    setOperand(0, lhs);
+  }
+
+  int32_t shift() const { return shift_; }
+  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& temp0,
+            const LDefinition& temp1, int32_t shift)
+      : LInstructionHelper(classOpcode), shift_(shift) {
+    setOperand(0, lhs);
+    setTemp(0, temp0);
+    setTemp(1, temp1);
+  }
+
+  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, 2> {
+ public:
+  LIR_HEADER(TableSwitch);
+
+  LTableSwitch(const LAllocation& in, const LDefinition& inputCopy,
+               const LDefinition& jumpTablePointer, MTableSwitch* ins)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, in);
+    setTemp(0, inputCopy);
+    setTemp(1, jumpTablePointer);
+    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 getTemp(1); }
+};
+
+// Takes a tableswitch with an integer to decide
+class LTableSwitchV : public LInstructionHelper<0, BOX_PIECES, 3> {
+ public:
+  LIR_HEADER(TableSwitchV);
+
+  LTableSwitchV(const LBoxAllocation& input, const LDefinition& inputCopy,
+                const LDefinition& floatCopy,
+                const LDefinition& jumpTablePointer, MTableSwitch* ins)
+      : LInstructionHelper(classOpcode) {
+    setBoxOperand(InputValue, input);
+    setTemp(0, inputCopy);
+    setTemp(1, floatCopy);
+    setTemp(2, jumpTablePointer);
+    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 getTemp(2); }
+};
+
+class LMulI : public LBinaryMath<0> {
+ public:
+  LIR_HEADER(MulI);
+
+  LMulI() : LBinaryMath(classOpcode) {}
+
+  MMul* mir() { return mir_->toMul(); }
+};
+
+class LUDivOrMod : public LBinaryMath<0> {
+ public:
+  LIR_HEADER(UDivOrMod);
+
+  LUDivOrMod() : LBinaryMath(classOpcode) {}
+
+  MBinaryArithInstruction* mir() const {
+    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
+    return static_cast<MBinaryArithInstruction*>(mir_);
+  }
+
+  bool canBeDivideByZero() const {
+    if (mir_->isMod()) {
+      return mir_->toMod()->canBeDivideByZero();
+    }
+    return mir_->toDiv()->canBeDivideByZero();
+  }
+
+  bool trapOnError() const {
+    if (mir_->isMod()) {
+      return mir_->toMod()->trapOnError();
+    }
+    return mir_->toDiv()->trapOnError();
+  }
+
+  wasm::BytecodeOffset bytecodeOffset() const {
+    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
+    if (mir_->isMod()) {
+      return mir_->toMod()->bytecodeOffset();
+    }
+    return mir_->toDiv()->bytecodeOffset();
+  }
+};
+
+class LWasmCompareExchangeI64
+    : public LInstructionHelper<INT64_PIECES, 2 + INT64_PIECES + INT64_PIECES,
+                                0> {
+ public:
+  LIR_HEADER(WasmCompareExchangeI64);
+
+  LWasmCompareExchangeI64(const LAllocation& ptr,
+                          const LInt64Allocation& oldValue,
+                          const LInt64Allocation& newValue,
+                          const LAllocation& memoryBase)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, ptr);
+    setInt64Operand(1, oldValue);
+    setInt64Operand(1 + INT64_PIECES, newValue);
+    setOperand(1 + 2 * INT64_PIECES, memoryBase);
+  }
+
+  const LAllocation* ptr() { return getOperand(0); }
+  const LInt64Allocation oldValue() { return getInt64Operand(1); }
+  const LInt64Allocation newValue() {
+    return getInt64Operand(1 + INT64_PIECES);
+  }
+  const LAllocation* memoryBase() { return getOperand(1 + 2 * INT64_PIECES); }
+  const MWasmCompareExchangeHeap* mir() const {
+    return mir_->toWasmCompareExchangeHeap();
+  }
+};
+
+class LWasmAtomicExchangeI64
+    : public LInstructionHelper<INT64_PIECES, 2 + INT64_PIECES, 0> {
+ public:
+  LIR_HEADER(WasmAtomicExchangeI64);
+
+  LWasmAtomicExchangeI64(const LAllocation& ptr, const LInt64Allocation& value,
+                         const LAllocation& memoryBase)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, ptr);
+    setInt64Operand(1, value);
+    setOperand(1 + INT64_PIECES, memoryBase);
+  }
+
+  const LAllocation* ptr() { return getOperand(0); }
+  const LInt64Allocation value() { return getInt64Operand(1); }
+  const LAllocation* memoryBase() { return getOperand(1 + INT64_PIECES); }
+  const MWasmAtomicExchangeHeap* mir() const {
+    return mir_->toWasmAtomicExchangeHeap();
+  }
+};
+
+class LWasmAtomicBinopI64
+    : public LInstructionHelper<INT64_PIECES, 2 + INT64_PIECES, 2> {
+ public:
+  LIR_HEADER(WasmAtomicBinopI64);
+
+  LWasmAtomicBinopI64(const LAllocation& ptr, const LInt64Allocation& value,
+                      const LAllocation& memoryBase)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, ptr);
+    setInt64Operand(1, value);
+    setOperand(1 + INT64_PIECES, memoryBase);
+  }
+
+  const LAllocation* ptr() { return getOperand(0); }
+  const LInt64Allocation value() { return getInt64Operand(1); }
+  const LAllocation* memoryBase() { return getOperand(1 + INT64_PIECES); }
+  const MWasmAtomicBinopHeap* mir() const {
+    return mir_->toWasmAtomicBinopHeap();
+  }
+};
+
+class LDivOrModI64 : public LBinaryMath<1> {
+ public:
+  LIR_HEADER(DivOrModI64)
+
+  LDivOrModI64(const LAllocation& lhs, const LAllocation& rhs,
+               const LDefinition& temp)
+      : LBinaryMath(classOpcode) {
+    setOperand(0, lhs);
+    setOperand(1, rhs);
+    setTemp(0, temp);
+  }
+
+  const LDefinition* remainder() { return getTemp(0); }
+  MBinaryArithInstruction* mir() const {
+    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
+    return static_cast<MBinaryArithInstruction*>(mir_);
+  }
+
+  bool canBeDivideByZero() const {
+    if (mir_->isMod()) {
+      return mir_->toMod()->canBeDivideByZero();
+    }
+    return mir_->toDiv()->canBeDivideByZero();
+  }
+  bool canBeNegativeOverflow() const {
+    if (mir_->isMod()) {
+      return mir_->toMod()->canBeNegativeDividend();
+    }
+    return mir_->toDiv()->canBeNegativeOverflow();
+  }
+  wasm::BytecodeOffset bytecodeOffset() const {
+    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
+    if (mir_->isMod()) {
+      return mir_->toMod()->bytecodeOffset();
+    }
+    return mir_->toDiv()->bytecodeOffset();
+  }
+};
+
+class LUDivOrModI64 : public LBinaryMath<1> {
+ public:
+  LIR_HEADER(UDivOrModI64);
+
+  LUDivOrModI64(const LAllocation& lhs, const LAllocation& rhs,
+                const LDefinition& temp)
+      : LBinaryMath(classOpcode) {
+    setOperand(0, lhs);
+    setOperand(1, rhs);
+    setTemp(0, temp);
+  }
+
+  const LDefinition* remainder() { return getTemp(0); }
+  const char* extraName() const {
+    return mir()->isTruncated() ? "Truncated" : nullptr;
+  }
+
+  MBinaryArithInstruction* mir() const {
+    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
+    return static_cast<MBinaryArithInstruction*>(mir_);
+  }
+  bool canBeDivideByZero() const {
+    if (mir_->isMod()) {
+      return mir_->toMod()->canBeDivideByZero();
+    }
+    return mir_->toDiv()->canBeDivideByZero();
+  }
+  wasm::BytecodeOffset bytecodeOffset() const {
+    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
+    if (mir_->isMod()) {
+      return mir_->toMod()->bytecodeOffset();
+    }
+    return mir_->toDiv()->bytecodeOffset();
+  }
+};
+
+class LWasmTruncateToInt64 : public LInstructionHelper<1, 1, 0> {
+ public:
+  LIR_HEADER(WasmTruncateToInt64);
+
+  explicit LWasmTruncateToInt64(const LAllocation& in)
+      : LInstructionHelper(classOpcode) {
+    setOperand(0, in);
+  }
+
+  MWasmTruncateToInt64* mir() const { return mir_->toWasmTruncateToInt64(); }
+};
+
+class LInt64ToFloatingPoint : public LInstructionHelper<1, 1, 0> {
+ public:
+  LIR_HEADER(Int64ToFloatingPoint);
+
+  explicit LInt64ToFloatingPoint(const LInt64Allocation& in)
+      : LInstructionHelper(classOpcode) {
+    setInt64Operand(0, in);
+  }
+
+  MInt64ToFloatingPoint* mir() const { return mir_->toInt64ToFloatingPoint(); }
+};
+
+}  // namespace jit
+}  // namespace js
+
+#endif /* jit_loong64_LIR_loong64_h */