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+/* -*- 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_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 CodeGeneratorARM64;
+class OutOfLineBailout;
+class OutOfLineTableSwitch;
+
+using OutOfLineWasmTruncateCheck =
+ OutOfLineWasmTruncateCheckBase<CodeGeneratorARM64>;
+
+class CodeGeneratorARM64 : public CodeGeneratorShared {
+ friend class MoveResolverARM64;
+
+ protected:
+ CodeGeneratorARM64(MIRGenerator* gen, LIRGraph* graph, MacroAssembler* masm);
+
+ 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);
+ }
+
+ bool generateOutOfLineCode();
+
+ // 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);
+
+ void emitBigIntDiv(LBigIntDiv* ins, Register dividend, Register divisor,
+ Register output, Label* fail);
+ void emitBigIntMod(LBigIntMod* ins, Register dividend, Register divisor,
+ Register output, Label* fail);
+ void emitSimpleBinaryI64(
+ LInstructionHelper<INT64_PIECES, 2 * INT64_PIECES, 0>* lir, JSOp op);
+
+ ValueOperand ToValue(LInstruction* ins, size_t pos);
+ ValueOperand ToTempValue(LInstruction* ins, size_t pos);
+
+ void generateInvalidateEpilogue();
+
+ public:
+ void visitOutOfLineBailout(OutOfLineBailout* ool);
+ void visitOutOfLineTableSwitch(OutOfLineTableSwitch* ool);
+ void visitOutOfLineWasmTruncateCheck(OutOfLineWasmTruncateCheck* ool);
+};
+
+typedef CodeGeneratorARM64 CodeGeneratorSpecific;
+
+// An out-of-line bailout thunk.
+class OutOfLineBailout : public OutOfLineCodeBase<CodeGeneratorARM64> {
+ protected: // Silence Clang warning.
+ LSnapshot* snapshot_;
+
+ public:
+ explicit OutOfLineBailout(LSnapshot* snapshot) : snapshot_(snapshot) {}
+
+ void accept(CodeGeneratorARM64* codegen) override;
+
+ LSnapshot* snapshot() const { return snapshot_; }
+};
+
+} // namespace jit
+} // namespace js
+
+#endif /* jit_arm64_CodeGenerator_arm64_h */