Add m-esr52 at 52.6.0

1 files changed, 262 insertions, 0 deletions

diff --git a/js/src/jit/arm64/CodeGenerator-arm64.h b/js/src/jit/arm64/CodeGenerator-arm64.h
new file mode 100644
index 000000000..63199d1fd
--- /dev/null
+++ b/js/src/jit/arm64/CodeGenerator-arm64.h
@@ -0,0 +1,262 @@
+/* -*- 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_arm64_CodeGenerator_arm64_h
+#define jit_arm64_CodeGenerator_arm64_h
+
+#include "jit/arm64/Assembler-arm64.h"
+#include "jit/shared/CodeGenerator-shared.h"
+
+namespace js {
+namespace jit {
+
+class OutOfLineBailout;
+class OutOfLineTableSwitch;
+
+class CodeGeneratorARM64 : public CodeGeneratorShared
+{
+    friend class MoveResolverARM64;
+
+    CodeGeneratorARM64* thisFromCtor() { return this; }
+
+  public:
+    CodeGeneratorARM64(MIRGenerator* gen, LIRGraph* graph, MacroAssembler* masm);
+
+  protected:
+    NonAssertingLabel deoptLabel_;
+
+    MoveOperand toMoveOperand(const LAllocation a) const;
+
+    void bailoutIf(Assembler::Condition condition, LSnapshot* snapshot);
+    void bailoutFrom(Label* label, LSnapshot* snapshot);
+    void bailout(LSnapshot* snapshot);
+
+    template <typename T1, typename T2>
+    void bailoutCmpPtr(Assembler::Condition c, T1 lhs, T2 rhs, LSnapshot* snapshot) {
+        masm.cmpPtr(lhs, rhs);
+        return bailoutIf(c, snapshot);
+    }
+    void bailoutTestPtr(Assembler::Condition c, Register lhs, Register rhs, LSnapshot* snapshot) {
+        masm.testPtr(lhs, rhs);
+        return bailoutIf(c, snapshot);
+    }
+    template <typename T1, typename T2>
+    void bailoutCmp32(Assembler::Condition c, T1 lhs, T2 rhs, LSnapshot* snapshot) {
+        masm.cmp32(lhs, rhs);
+        return bailoutIf(c, snapshot);
+    }
+    template <typename T1, typename T2>
+    void bailoutTest32(Assembler::Condition c, T1 lhs, T2 rhs, LSnapshot* snapshot) {
+        masm.test32(lhs, rhs);
+        return bailoutIf(c, snapshot);
+    }
+    void bailoutIfFalseBool(Register reg, LSnapshot* snapshot) {
+        masm.test32(reg, Imm32(0xFF));
+        return bailoutIf(Assembler::Zero, snapshot);
+    }
+
+  protected:
+    bool generateOutOfLineCode();
+
+    void emitRoundDouble(FloatRegister src, Register dest, Label* fail);
+
+    // Emits a branch that directs control flow to the true block if |cond| is
+    // true, and the false block if |cond| is false.
+    void emitBranch(Assembler::Condition cond, MBasicBlock* ifTrue, MBasicBlock* ifFalse);
+
+    void testNullEmitBranch(Assembler::Condition cond, const ValueOperand& value,
+                            MBasicBlock* ifTrue, MBasicBlock* ifFalse)
+    {
+        cond = masm.testNull(cond, value);
+        emitBranch(cond, ifTrue, ifFalse);
+    }
+    void testUndefinedEmitBranch(Assembler::Condition cond, const ValueOperand& value,
+                                 MBasicBlock* ifTrue, MBasicBlock* ifFalse)
+    {
+        cond = masm.testUndefined(cond, value);
+        emitBranch(cond, ifTrue, ifFalse);
+    }
+    void testObjectEmitBranch(Assembler::Condition cond, const ValueOperand& value,
+                              MBasicBlock* ifTrue, MBasicBlock* ifFalse)
+    {
+        cond = masm.testObject(cond, value);
+        emitBranch(cond, ifTrue, ifFalse);
+    }
+    void testZeroEmitBranch(Assembler::Condition cond, Register reg,
+                            MBasicBlock* ifTrue, MBasicBlock* ifFalse)
+    {
+        MOZ_ASSERT(cond == Assembler::Equal || cond == Assembler::NotEqual);
+        masm.cmpPtr(reg, ImmWord(0));
+        emitBranch(cond, ifTrue, ifFalse);
+    }
+
+    void emitTableSwitchDispatch(MTableSwitch* mir, Register index, Register base);
+
+  public:
+    // Instruction visitors.
+    virtual void visitMinMaxD(LMinMaxD* ins);
+    virtual void visitMinMaxF(LMinMaxF* math);
+    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 visitSubI(LSubI* ins);
+    virtual void visitBitNotI(LBitNotI* ins);
+    virtual void visitBitOpI(LBitOpI* ins);
+
+    virtual void visitMulI(LMulI* 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 visitUrshD(LUrshD* ins);
+
+    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 visitCompareB(LCompareB* lir);
+    virtual void visitCompareBAndBranch(LCompareBAndBranch* lir);
+    virtual void visitCompareBitwise(LCompareBitwise* lir);
+    virtual void visitCompareBitwiseAndBranch(LCompareBitwiseAndBranch* lir);
+    virtual void visitBitAndAndBranch(LBitAndAndBranch* baab);
+    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);
+
+    virtual void visitClzI(LClzI* lir);
+    virtual void visitCtzI(LCtzI* lir);
+    // Out of line visitors.
+    void visitOutOfLineBailout(OutOfLineBailout* ool);
+    void visitOutOfLineTableSwitch(OutOfLineTableSwitch* ool);
+
+  protected:
+    ValueOperand ToValue(LInstruction* ins, size_t pos);
+    ValueOperand ToOutValue(LInstruction* ins);
+    ValueOperand ToTempValue(LInstruction* ins, size_t pos);
+
+    // Functions for LTestVAndBranch.
+    Register splitTagForTest(const ValueOperand& value);
+
+    void storeElementTyped(const LAllocation* value, MIRType valueType, MIRType elementType,
+                           Register elements, const LAllocation* index);
+
+    void divICommon(MDiv* mir, Register lhs, Register rhs, Register output, LSnapshot* snapshot,
+                    Label& done);
+    void modICommon(MMod* mir, Register lhs, Register rhs, Register output, LSnapshot* snapshot,
+                    Label& done);
+
+  public:
+    void visitBox(LBox* box);
+    void visitUnbox(LUnbox* unbox);
+    void visitValue(LValue* value);
+    void visitDouble(LDouble* ins);
+    void visitFloat32(LFloat32* ins);
+
+    void visitLoadSlotV(LLoadSlotV* load);
+    void visitLoadSlotT(LLoadSlotT* load);
+    void visitStoreSlotT(LStoreSlotT* load);
+
+    void visitLoadElementT(LLoadElementT* load);
+
+    void visitGuardShape(LGuardShape* guard);
+    void visitGuardObjectGroup(LGuardObjectGroup* guard);
+    void visitGuardClass(LGuardClass* guard);
+
+    void visitInterruptCheck(LInterruptCheck* lir);
+
+    void visitNegI(LNegI* lir);
+    void visitNegD(LNegD* lir);
+    void visitNegF(LNegF* lir);
+    void visitLoadTypedArrayElementStatic(LLoadTypedArrayElementStatic* ins);
+    void visitStoreTypedArrayElementStatic(LStoreTypedArrayElementStatic* ins);
+    void visitCompareExchangeTypedArrayElement(LCompareExchangeTypedArrayElement* lir);
+    void visitAtomicExchangeTypedArrayElement(LAtomicExchangeTypedArrayElement* lir);
+    void visitWasmCall(LWasmCall* ins);
+    void visitWasmCallI64(LWasmCallI64* ins);
+    void visitAsmJSLoadHeap(LAsmJSLoadHeap* ins);
+    void visitAsmJSStoreHeap(LAsmJSStoreHeap* ins);
+    void visitAsmJSCompareExchangeHeap(LAsmJSCompareExchangeHeap* ins);
+    void visitAsmJSAtomicBinopHeap(LAsmJSAtomicBinopHeap* ins);
+    void visitWasmStackArg(LWasmStackArg* ins);
+
+    void visitWasmLoadGlobalVar(LWasmLoadGlobalVar* ins);
+    void visitWasmStoreGlobalVar(LWasmStoreGlobalVar* ins);
+
+    void generateInvalidateEpilogue();
+
+    void setReturnDoubleRegs(LiveRegisterSet* regs);
+
+  protected:
+    void postWasmCall(LWasmCall* lir) {
+        MOZ_CRASH("postWasmCall");
+    }
+
+    void visitEffectiveAddress(LEffectiveAddress* ins);
+    void visitUDiv(LUDiv* ins);
+    void visitUMod(LUMod* 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 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"); }
+};
+
+typedef CodeGeneratorARM64 CodeGeneratorSpecific;
+
+// An out-of-line bailout thunk.
+class OutOfLineBailout : public OutOfLineCodeBase<CodeGeneratorARM64>
+{
+  protected: // Silence Clang warning.
+    LSnapshot* snapshot_;
+
+  public:
+    OutOfLineBailout(LSnapshot* snapshot)
+      : snapshot_(snapshot)
+    { }
+
+    void accept(CodeGeneratorARM64* codegen);
+
+    LSnapshot* snapshot() const {
+        return snapshot_;
+    }
+};
+
+} // namespace jit
+} // namespace js
+
+#endif /* jit_arm64_CodeGenerator_arm64_h */