Add m-esr52 at 52.6.0

1 files changed, 301 insertions, 0 deletions

diff --git a/js/src/jit/mips-shared/CodeGenerator-mips-shared.h b/js/src/jit/mips-shared/CodeGenerator-mips-shared.h
new file mode 100644
index 000000000..ff5cca196
--- /dev/null
+++ b/js/src/jit/mips-shared/CodeGenerator-mips-shared.h
@@ -0,0 +1,301 @@
+/* -*- 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_mips_shared_CodeGenerator_mips_shared_h
+#define jit_mips_shared_CodeGenerator_mips_shared_h
+
+#include "jit/shared/CodeGenerator-shared.h"
+
+namespace js {
+namespace jit {
+
+class OutOfLineBailout;
+class OutOfLineTableSwitch;
+
+class CodeGeneratorMIPSShared : public CodeGeneratorShared
+{
+    friend class MoveResolverMIPS;
+
+    CodeGeneratorMIPSShared* thisFromCtor() {
+        return this;
+    }
+
+  protected:
+    NonAssertingLabel deoptLabel_;
+
+    Operand ToOperand(const LAllocation& a);
+    Operand ToOperand(const LAllocation* a);
+    Operand ToOperand(const LDefinition* def);
+
+#ifdef JS_PUNBOX64
+    Operand ToOperandOrRegister64(const LInt64Allocation input);
+#else
+    Register64 ToOperandOrRegister64(const LInt64Allocation input);
+#endif
+
+    MoveOperand toMoveOperand(LAllocation a) const;
+
+    template <typename T1, typename T2>
+    void bailoutCmp32(Assembler::Condition c, T1 lhs, T2 rhs, LSnapshot* snapshot) {
+        Label bail;
+        masm.branch32(c, lhs, rhs, &bail);
+        bailoutFrom(&bail, snapshot);
+    }
+    template<typename T>
+    void bailoutTest32(Assembler::Condition c, Register lhs, T rhs, LSnapshot* snapshot) {
+        Label bail;
+        masm.branchTest32(c, lhs, rhs, &bail);
+        bailoutFrom(&bail, snapshot);
+    }
+    template <typename T1, typename T2>
+    void bailoutCmpPtr(Assembler::Condition c, T1 lhs, T2 rhs, LSnapshot* snapshot) {
+        Label bail;
+        masm.branchPtr(c, lhs, rhs, &bail);
+        bailoutFrom(&bail, snapshot);
+    }
+    void bailoutTestPtr(Assembler::Condition c, Register lhs, Register rhs, LSnapshot* snapshot) {
+        Label bail;
+        masm.branchTestPtr(c, lhs, rhs, &bail);
+        bailoutFrom(&bail, snapshot);
+    }
+    void bailoutIfFalseBool(Register reg, LSnapshot* snapshot) {
+        Label bail;
+        masm.branchTest32(Assembler::Zero, reg, Imm32(0xFF), &bail);
+        bailoutFrom(&bail, snapshot);
+    }
+
+    void bailoutFrom(Label* label, LSnapshot* snapshot);
+    void bailout(LSnapshot* snapshot);
+
+  protected:
+    bool generateOutOfLineCode();
+
+    template <typename T>
+    void branchToBlock(Register lhs, T rhs, MBasicBlock* mir, Assembler::Condition cond)
+    {
+        mir = skipTrivialBlocks(mir);
+
+        Label* label = mir->lir()->label();
+        if (Label* oolEntry = labelForBackedgeWithImplicitCheck(mir)) {
+            // Note: the backedge is initially a jump to the next instruction.
+            // It will be patched to the target block's label during link().
+            RepatchLabel rejoin;
+            CodeOffsetJump backedge;
+            Label skip;
+
+            masm.ma_b(lhs, rhs, &skip, Assembler::InvertCondition(cond), ShortJump);
+            backedge = masm.backedgeJump(&rejoin);
+            masm.bind(&rejoin);
+            masm.bind(&skip);
+
+            if (!patchableBackedges_.append(PatchableBackedgeInfo(backedge, label, oolEntry)))
+                MOZ_CRASH();
+        } else {
+            masm.ma_b(lhs, rhs, label, cond);
+        }
+    }
+    void branchToBlock(Assembler::FloatFormat fmt, FloatRegister lhs, FloatRegister rhs,
+                       MBasicBlock* mir, Assembler::DoubleCondition cond);
+
+    // Emits a branch that directs control flow to the true block if |cond| is
+    // true, and the false block if |cond| is false.
+    template <typename T>
+    void emitBranch(Register lhs, T rhs, Assembler::Condition cond,
+                    MBasicBlock* mirTrue, MBasicBlock* mirFalse)
+    {
+        if (isNextBlock(mirFalse->lir())) {
+            branchToBlock(lhs, rhs, mirTrue, cond);
+        } else {
+            branchToBlock(lhs, rhs, mirFalse, Assembler::InvertCondition(cond));
+            jumpToBlock(mirTrue);
+        }
+    }
+    void testZeroEmitBranch(Assembler::Condition cond, Register reg,
+                            MBasicBlock* ifTrue, MBasicBlock* ifFalse)
+    {
+        emitBranch(reg, Imm32(0), cond, ifTrue, ifFalse);
+    }
+
+    template <typename T>
+    void emitWasmLoad(T* ins);
+    template <typename T>
+    void emitWasmStore(T* ins);
+
+  public:
+    // Instruction visitors.
+    virtual void visitMinMaxD(LMinMaxD* ins);
+    virtual void visitMinMaxF(LMinMaxF* ins);
+    virtual void visitAbsD(LAbsD* ins);
+    virtual void visitAbsF(LAbsF* ins);
+    virtual void visitSqrtD(LSqrtD* ins);
+    virtual void visitSqrtF(LSqrtF* ins);
+    virtual void visitAddI(LAddI* ins);
+    virtual void visitAddI64(LAddI64* ins);
+    virtual void visitSubI(LSubI* ins);
+    virtual void visitSubI64(LSubI64* ins);
+    virtual void visitBitNotI(LBitNotI* ins);
+    virtual void visitBitOpI(LBitOpI* ins);
+    virtual void visitBitOpI64(LBitOpI64* ins);
+
+    virtual void visitMulI(LMulI* ins);
+    virtual void visitMulI64(LMulI64* ins);
+
+    virtual void visitDivI(LDivI* ins);
+    virtual void visitDivPowTwoI(LDivPowTwoI* ins);
+    virtual void visitModI(LModI* ins);
+    virtual void visitModPowTwoI(LModPowTwoI* ins);
+    virtual void visitModMaskI(LModMaskI* ins);
+    virtual void visitPowHalfD(LPowHalfD* ins);
+    virtual void visitShiftI(LShiftI* ins);
+    virtual void visitShiftI64(LShiftI64* ins);
+    virtual void visitRotateI64(LRotateI64* lir);
+    virtual void visitUrshD(LUrshD* ins);
+
+    virtual void visitClzI(LClzI* ins);
+    virtual void visitCtzI(LCtzI* ins);
+    virtual void visitPopcntI(LPopcntI* ins);
+    virtual void visitPopcntI64(LPopcntI64* lir);
+
+    virtual void visitTestIAndBranch(LTestIAndBranch* test);
+    virtual void visitCompare(LCompare* comp);
+    virtual void visitCompareAndBranch(LCompareAndBranch* comp);
+    virtual void visitTestDAndBranch(LTestDAndBranch* test);
+    virtual void visitTestFAndBranch(LTestFAndBranch* test);
+    virtual void visitCompareD(LCompareD* comp);
+    virtual void visitCompareF(LCompareF* comp);
+    virtual void visitCompareDAndBranch(LCompareDAndBranch* comp);
+    virtual void visitCompareFAndBranch(LCompareFAndBranch* comp);
+    virtual void visitBitAndAndBranch(LBitAndAndBranch* lir);
+    virtual void visitWasmUint32ToDouble(LWasmUint32ToDouble* lir);
+    virtual void visitWasmUint32ToFloat32(LWasmUint32ToFloat32* lir);
+    virtual void visitNotI(LNotI* ins);
+    virtual void visitNotD(LNotD* ins);
+    virtual void visitNotF(LNotF* ins);
+
+    virtual void visitMathD(LMathD* math);
+    virtual void visitMathF(LMathF* math);
+    virtual void visitFloor(LFloor* lir);
+    virtual void visitFloorF(LFloorF* lir);
+    virtual void visitCeil(LCeil* lir);
+    virtual void visitCeilF(LCeilF* lir);
+    virtual void visitRound(LRound* lir);
+    virtual void visitRoundF(LRoundF* lir);
+    virtual void visitTruncateDToInt32(LTruncateDToInt32* ins);
+    virtual void visitTruncateFToInt32(LTruncateFToInt32* ins);
+
+    void visitWasmTruncateToInt32(LWasmTruncateToInt32* lir);
+    void visitWasmLoadGlobalVar(LWasmLoadGlobalVar* ins);
+    void visitWasmStoreGlobalVar(LWasmStoreGlobalVar* ins);
+
+    // Out of line visitors.
+    virtual void visitOutOfLineBailout(OutOfLineBailout* ool) = 0;
+    void visitOutOfLineWasmTruncateCheck(OutOfLineWasmTruncateCheck* ool);
+    void visitCopySignD(LCopySignD* ins);
+    void visitCopySignF(LCopySignF* ins);
+
+  protected:
+    virtual ValueOperand ToOutValue(LInstruction* ins) = 0;
+
+  public:
+    CodeGeneratorMIPSShared(MIRGenerator* gen, LIRGraph* graph, MacroAssembler* masm);
+
+    void visitValue(LValue* value);
+    void visitDouble(LDouble* ins);
+    void visitFloat32(LFloat32* ins);
+
+    void visitGuardShape(LGuardShape* guard);
+    void visitGuardObjectGroup(LGuardObjectGroup* guard);
+    void visitGuardClass(LGuardClass* guard);
+
+    void visitNegI(LNegI* lir);
+    void visitNegD(LNegD* lir);
+    void visitNegF(LNegF* lir);
+    void visitLoadTypedArrayElementStatic(LLoadTypedArrayElementStatic* ins);
+    void visitStoreTypedArrayElementStatic(LStoreTypedArrayElementStatic* ins);
+    void visitWasmCall(LWasmCall* ins);
+    void visitWasmCallI64(LWasmCallI64* ins);
+    void visitWasmLoad(LWasmLoad* ins);
+    void visitWasmUnalignedLoad(LWasmUnalignedLoad* ins);
+    void visitWasmStore(LWasmStore* ins);
+    void visitWasmUnalignedStore(LWasmUnalignedStore* ins);
+    void visitWasmAddOffset(LWasmAddOffset* ins);
+    void visitAsmJSLoadHeap(LAsmJSLoadHeap* ins);
+    void visitAsmJSStoreHeap(LAsmJSStoreHeap* ins);
+    void visitAsmJSCompareExchangeHeap(LAsmJSCompareExchangeHeap* ins);
+    void visitAsmJSAtomicExchangeHeap(LAsmJSAtomicExchangeHeap* ins);
+    void visitAsmJSAtomicBinopHeap(LAsmJSAtomicBinopHeap* ins);
+    void visitAsmJSAtomicBinopHeapForEffect(LAsmJSAtomicBinopHeapForEffect* ins);
+
+    void visitWasmStackArg(LWasmStackArg* ins);
+    void visitWasmStackArgI64(LWasmStackArgI64* ins);
+    void visitWasmSelect(LWasmSelect* ins);
+    void visitWasmReinterpret(LWasmReinterpret* ins);
+
+    void visitMemoryBarrier(LMemoryBarrier* ins);
+    void visitAtomicTypedArrayElementBinop(LAtomicTypedArrayElementBinop* lir);
+    void visitAtomicTypedArrayElementBinopForEffect(LAtomicTypedArrayElementBinopForEffect* lir);
+    void visitCompareExchangeTypedArrayElement(LCompareExchangeTypedArrayElement* lir);
+    void visitAtomicExchangeTypedArrayElement(LAtomicExchangeTypedArrayElement* lir);
+
+    void generateInvalidateEpilogue();
+
+    // Generating a result.
+    template<typename S, typename T>
+    void atomicBinopToTypedIntArray(AtomicOp op, Scalar::Type arrayType, const S& value,
+                                    const T& mem, Register flagTemp, Register outTemp,
+                                    Register valueTemp, Register offsetTemp, Register maskTemp,
+                                    AnyRegister output);
+
+    // Generating no result.
+    template<typename S, typename T>
+    void atomicBinopToTypedIntArray(AtomicOp op, Scalar::Type arrayType, const S& value,
+                                    const T& mem, Register flagTemp, Register valueTemp,
+                                    Register offsetTemp, Register maskTemp);
+
+  protected:
+    void visitEffectiveAddress(LEffectiveAddress* ins);
+    void visitUDivOrMod(LUDivOrMod* ins);
+
+  public:
+    // Unimplemented SIMD instructions
+    void visitSimdSplatX4(LSimdSplatX4* lir) { MOZ_CRASH("NYI"); }
+    void visitSimd128Int(LSimd128Int* ins) { MOZ_CRASH("NYI"); }
+    void visitSimd128Float(LSimd128Float* ins) { MOZ_CRASH("NYI"); }
+    void visitSimdReinterpretCast(LSimdReinterpretCast* ins) { MOZ_CRASH("NYI"); }
+    void visitSimdExtractElementI(LSimdExtractElementI* ins) { MOZ_CRASH("NYI"); }
+    void visitSimdExtractElementF(LSimdExtractElementF* ins) { MOZ_CRASH("NYI"); }
+    void visitSimdBinaryCompIx4(LSimdBinaryCompIx4* lir) { MOZ_CRASH("NYI"); }
+    void visitSimdBinaryCompFx4(LSimdBinaryCompFx4* lir) { MOZ_CRASH("NYI"); }
+    void visitSimdBinaryArithIx4(LSimdBinaryArithIx4* lir) { MOZ_CRASH("NYI"); }
+    void visitSimdBinaryArithFx4(LSimdBinaryArithFx4* lir) { MOZ_CRASH("NYI"); }
+    void visitSimdBinaryBitwise(LSimdBinaryBitwise* lir) { MOZ_CRASH("NYI"); }
+    void visitSimdGeneralShuffleI(LSimdGeneralShuffleI* lir) { MOZ_CRASH("NYI"); }
+    void visitSimdGeneralShuffleF(LSimdGeneralShuffleF* lir) { MOZ_CRASH("NYI"); }
+};
+
+// An out-of-line bailout thunk.
+class OutOfLineBailout : public OutOfLineCodeBase<CodeGeneratorMIPSShared>
+{
+    LSnapshot* snapshot_;
+    uint32_t frameSize_;
+
+  public:
+    OutOfLineBailout(LSnapshot* snapshot, uint32_t frameSize)
+      : snapshot_(snapshot),
+        frameSize_(frameSize)
+    { }
+
+    void accept(CodeGeneratorMIPSShared* codegen);
+
+    LSnapshot* snapshot() const {
+        return snapshot_;
+    }
+};
+
+} // namespace jit
+} // namespace js
+
+#endif /* jit_mips_shared_CodeGenerator_mips_shared_h */