diff -r 000000000000 -r 6474c204b198 js/src/jit/arm/LIR-arm.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit/arm/LIR-arm.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,475 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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 LBox : public LInstructionHelper<2, 1, 0>
+{
+    MIRType type_;
+
+  public:
+    LIR_HEADER(Box);
+
+    LBox(const LAllocation &in_payload, MIRType type)
+      : type_(type)
+    {
+        setOperand(0, in_payload);
+    }
+
+    MIRType type() const {
+        return type_;
+    }
+    const char *extraName() const {
+        return StringFromMIRType(type_);
+    }
+};
+
+class LBoxFloatingPoint : public LInstructionHelper<2, 1, 1>
+{
+    MIRType type_;
+
+  public:
+    LIR_HEADER(BoxFloatingPoint);
+
+    LBoxFloatingPoint(const LAllocation &in, const LDefinition &temp, MIRType type)
+      : 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);
+
+    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(MIRType type)
+      : type_(type)
+    { }
+
+    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 LAsmJSUInt32ToDouble : public LInstructionHelper<1, 1, 0>
+{
+  public:
+    LIR_HEADER(AsmJSUInt32ToDouble)
+
+    LAsmJSUInt32ToDouble(const LAllocation &input) {
+        setOperand(0, input);
+    }
+};
+
+// Convert a 32-bit unsigned integer to a float32.
+class LAsmJSUInt32ToFloat32 : public LInstructionHelper<1, 1, 0>
+{
+  public:
+    LIR_HEADER(AsmJSUInt32ToFloat32)
+
+    LAsmJSUInt32ToFloat32(const LAllocation &input) {
+        setOperand(0, input);
+    }
+};
+
+class LDivI : public LBinaryMath<1>
+{
+  public:
+    LIR_HEADER(DivI);
+
+    LDivI(const LAllocation &lhs, const LAllocation &rhs,
+          const LDefinition &temp) {
+        setOperand(0, lhs);
+        setOperand(1, rhs);
+        setTemp(0, temp);
+    }
+
+    MDiv *mir() const {
+        return mir_->toDiv();
+    }
+};
+
+// LSoftDivI is a software divide for ARM cores that don't support a hardware
+// divide instruction.
+//
+// It is implemented as a proper C function so it trashes r0, r1, r2 and r3.
+// The call also trashes lr, and has the ability to trash ip. The function also
+// takes two arguments (dividend in r0, divisor in r1). The LInstruction gets
+// encoded such that the divisor and dividend are passed in their apropriate
+// registers and end their life at the start of the instruction by the use of
+// useFixedAtStart.  The result is returned in r0 and the other three registers
+// that can be trashed are marked as temps.  For the time being, the link
+// register is not marked as trashed because we never allocate to the link
+// register.  The FP registers are not trashed.
+class LSoftDivI : public LBinaryMath<3>
+{
+  public:
+    LIR_HEADER(SoftDivI);
+
+    LSoftDivI(const LAllocation &lhs, const LAllocation &rhs,
+              const LDefinition &temp1, const LDefinition &temp2, const LDefinition &temp3) {
+        setOperand(0, lhs);
+        setOperand(1, rhs);
+        setTemp(0, temp1);
+        setTemp(1, temp2);
+        setTemp(2, temp3);
+    }
+
+    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)
+      : 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<1>
+{
+  public:
+    LIR_HEADER(ModI);
+
+    LModI(const LAllocation &lhs, const LAllocation &rhs,
+          const LDefinition &callTemp)
+    {
+        setOperand(0, lhs);
+        setOperand(1, rhs);
+        setTemp(0, callTemp);
+    }
+
+    const LDefinition *callTemp() {
+        return getTemp(0);
+    }
+
+    MMod *mir() const {
+        return mir_->toMod();
+    }
+};
+
+class LSoftModI : public LBinaryMath<4>
+{
+  public:
+    LIR_HEADER(SoftModI);
+
+    LSoftModI(const LAllocation &lhs, const LAllocation &rhs,
+              const LDefinition &temp1, const LDefinition &temp2, const LDefinition &temp3,
+              const LDefinition &callTemp)
+    {
+        setOperand(0, lhs);
+        setOperand(1, rhs);
+        setTemp(0, temp1);
+        setTemp(1, temp2);
+        setTemp(2, temp3);
+        setTemp(3, callTemp);
+    }
+
+    const LDefinition *callTemp() {
+        return getTemp(3);
+    }
+
+    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)
+      : 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)
+      : shift_(shift)
+    {
+        setOperand(0, lhs);
+        setTemp(0, temp1);
+        setTemp(1, temp2);
+    }
+
+    int32_t shift() const {
+        return shift_;
+    }
+
+    MMod *mir() const {
+        return mir_->toMod();
+    }
+};
+
+class LPowHalfD : public LInstructionHelper<1, 1, 0>
+{
+  public:
+    LIR_HEADER(PowHalfD);
+    LPowHalfD(const LAllocation &input) {
+        setOperand(0, input);
+    }
+
+    const LAllocation *input() {
+        return getOperand(0);
+    }
+    const LDefinition *output() {
+        return getDef(0);
+    }
+};
+
+// 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) {
+        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 LDefinition &inputCopy, const LDefinition &floatCopy,
+                  MTableSwitch *ins)
+    {
+        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 LGuardShape : public LInstructionHelper<0, 1, 1>
+{
+  public:
+    LIR_HEADER(GuardShape);
+
+    LGuardShape(const LAllocation &in, const LDefinition &temp) {
+        setOperand(0, in);
+        setTemp(0, temp);
+    }
+    const MGuardShape *mir() const {
+        return mir_->toGuardShape();
+    }
+    const LDefinition *tempInt() {
+        return getTemp(0);
+    }
+};
+
+class LGuardObjectType : public LInstructionHelper<0, 1, 1>
+{
+  public:
+    LIR_HEADER(GuardObjectType);
+
+    LGuardObjectType(const LAllocation &in, const LDefinition &temp) {
+        setOperand(0, in);
+        setTemp(0, temp);
+    }
+    const MGuardObjectType *mir() const {
+        return mir_->toGuardObjectType();
+    }
+    const LDefinition *tempInt() {
+        return getTemp(0);
+    }
+};
+
+class LInterruptCheck : public LInstructionHelper<0, 0, 0>
+{
+  public:
+    LIR_HEADER(InterruptCheck);
+};
+
+class LMulI : public LBinaryMath<0>
+{
+  public:
+    LIR_HEADER(MulI);
+
+    MMul *mir() {
+        return mir_->toMul();
+    }
+};
+
+class LUDiv : public LBinaryMath<0>
+{
+  public:
+    LIR_HEADER(UDiv);
+
+    MDiv *mir() {
+        return mir_->toDiv();
+    }
+};
+
+class LUMod : public LBinaryMath<0>
+{
+  public:
+    LIR_HEADER(UMod);
+
+    MMod *mir() {
+        return mir_->toMod();
+    }
+};
+
+// This class performs a simple x86 'div', yielding either a quotient or remainder depending on
+// whether this instruction is defined to output eax (quotient) or edx (remainder).
+class LSoftUDivOrMod : public LBinaryMath<3>
+{
+  public:
+    LIR_HEADER(SoftUDivOrMod);
+
+    LSoftUDivOrMod(const LAllocation &lhs, const LAllocation &rhs, const LDefinition &temp1,
+                   const LDefinition &temp2, const LDefinition &temp3) {
+        setOperand(0, lhs);
+        setOperand(1, rhs);
+        setTemp(0, temp1);
+        setTemp(1, temp2);
+        setTemp(2, temp3);
+    }
+};
+
+class LAsmJSLoadFuncPtr : public LInstructionHelper<1, 1, 1>
+{
+  public:
+    LIR_HEADER(AsmJSLoadFuncPtr);
+    LAsmJSLoadFuncPtr(const LAllocation &index, const LDefinition &temp) {
+        setOperand(0, index);
+        setTemp(0, temp);
+    }
+    const MAsmJSLoadFuncPtr *mir() const {
+        return mir_->toAsmJSLoadFuncPtr();
+    }
+    const LAllocation *index() {
+        return getOperand(0);
+    }
+    const LDefinition *temp() {
+        return getTemp(0);
+    }
+};
+
+} // namespace jit
+} // namespace js
+
+#endif /* jit_arm_LIR_arm_h */