1f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// Copyright 2013 the V8 project authors. All rights reserved. 23484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org// Use of this source code is governed by a BSD-style license that can be 33484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org// found in the LICENSE file. 4f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 5fa0c3c69b9d632e5730bdd9c745c375beef5e54dmachenbach@chromium.org#ifndef V8_ARM64_MACRO_ASSEMBLER_ARM64_H_ 6fa0c3c69b9d632e5730bdd9c745c375beef5e54dmachenbach@chromium.org#define V8_ARM64_MACRO_ASSEMBLER_ARM64_H_ 7f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 8f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#include <vector> 9f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 10196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/globals.h" 11f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 12196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/arm64/assembler-arm64-inl.h" 13f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 14f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgnamespace v8 { 15f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgnamespace internal { 16f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 17f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#define LS_MACRO_LIST(V) \ 18f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org V(Ldrb, Register&, rt, LDRB_w) \ 19f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org V(Strb, Register&, rt, STRB_w) \ 20f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org V(Ldrsb, Register&, rt, rt.Is64Bits() ? LDRSB_x : LDRSB_w) \ 21f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org V(Ldrh, Register&, rt, LDRH_w) \ 22f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org V(Strh, Register&, rt, STRH_w) \ 23f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org V(Ldrsh, Register&, rt, rt.Is64Bits() ? LDRSH_x : LDRSH_w) \ 24f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org V(Ldr, CPURegister&, rt, LoadOpFor(rt)) \ 25f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org V(Str, CPURegister&, rt, StoreOpFor(rt)) \ 26f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org V(Ldrsw, Register&, rt, LDRSW_x) 27f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 28f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 29f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// ---------------------------------------------------------------------------- 30f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// Static helper functions 31f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 32f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// Generate a MemOperand for loading a field from an object. 33f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orginline MemOperand FieldMemOperand(Register object, int offset); 34f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orginline MemOperand UntagSmiFieldMemOperand(Register object, int offset); 35f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 36f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// Generate a MemOperand for loading a SMI from memory. 37f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orginline MemOperand UntagSmiMemOperand(Register object, int offset); 38f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 39f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 40f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// ---------------------------------------------------------------------------- 41f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// MacroAssembler 42f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 43f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum BranchType { 44f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Copies of architectural conditions. 45f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The associated conditions can be used in place of those, the code will 46f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // take care of reinterpreting them with the correct type. 47f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_eq = eq, 48f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_ne = ne, 49f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_hs = hs, 50f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_lo = lo, 51f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_mi = mi, 52f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_pl = pl, 53f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_vs = vs, 54f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_vc = vc, 55f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_hi = hi, 56f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_ls = ls, 57f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_ge = ge, 58f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_lt = lt, 59f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_gt = gt, 60f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_le = le, 61f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_al = al, 62f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org integer_nv = nv, 63f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 64f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // These two are *different* from the architectural codes al and nv. 65f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 'always' is used to generate unconditional branches. 66f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 'never' is used to not generate a branch (generally as the inverse 67f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // branch type of 'always). 68f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org always, never, 69f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // cbz and cbnz 70f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org reg_zero, reg_not_zero, 71f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // tbz and tbnz 72f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org reg_bit_clear, reg_bit_set, 73f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 74f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Aliases. 75f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org kBranchTypeFirstCondition = eq, 76f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org kBranchTypeLastCondition = nv, 77f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org kBranchTypeFirstUsingReg = reg_zero, 78f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org kBranchTypeFirstUsingBit = reg_bit_clear 79f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org}; 80f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 81f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orginline BranchType InvertBranchType(BranchType type) { 82f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org if (kBranchTypeFirstCondition <= type && type <= kBranchTypeLastCondition) { 83f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org return static_cast<BranchType>( 8438de99aae2d4efc5796aa6935c1648447ec32fc8machenbach@chromium.org NegateCondition(static_cast<Condition>(type))); 85f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } else { 86f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org return static_cast<BranchType>(type ^ 1); 87f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 88f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org} 89f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 90f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum RememberedSetAction { EMIT_REMEMBERED_SET, OMIT_REMEMBERED_SET }; 91f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum SmiCheck { INLINE_SMI_CHECK, OMIT_SMI_CHECK }; 92196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.orgenum PointersToHereCheck { 93196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org kPointersToHereMaybeInteresting, 94196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org kPointersToHereAreAlwaysInteresting 95196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org}; 96f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum LinkRegisterStatus { kLRHasNotBeenSaved, kLRHasBeenSaved }; 97f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum TargetAddressStorageMode { 98f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org CAN_INLINE_TARGET_ADDRESS, 99f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org NEVER_INLINE_TARGET_ADDRESS 100f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org}; 101f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum UntagMode { kNotSpeculativeUntag, kSpeculativeUntag }; 102f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum ArrayHasHoles { kArrayCantHaveHoles, kArrayCanHaveHoles }; 103f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum CopyHint { kCopyUnknown, kCopyShort, kCopyLong }; 104f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum DiscardMoveMode { kDontDiscardForSameWReg, kDiscardForSameWReg }; 105f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgenum SeqStringSetCharCheckIndexType { kIndexIsSmi, kIndexIsInteger32 }; 106f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 107f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgclass MacroAssembler : public Assembler { 108f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org public: 109f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org MacroAssembler(Isolate* isolate, byte * buffer, unsigned buffer_size); 110f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 111f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline Handle<Object> CodeObject(); 112f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 113f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Instruction set functions ------------------------------------------------ 114f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Logical macros. 115f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void And(const Register& rd, 116f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 117f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 118f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ands(const Register& rd, 119f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 120f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 121f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Bic(const Register& rd, 122f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 123f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 124f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Bics(const Register& rd, 125f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 126f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 127f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Orr(const Register& rd, 128f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 129f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 130f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Orn(const Register& rd, 131f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 132f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 133f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Eor(const Register& rd, 134f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 135f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 136f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Eon(const Register& rd, 137f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 138f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 139f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Tst(const Register& rn, const Operand& operand); 140f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LogicalMacro(const Register& rd, 141f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 142f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand, 143f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org LogicalOp op); 144f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 145f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Add and sub macros. 146f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Add(const Register& rd, 147f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 148f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 149f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Adds(const Register& rd, 150f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 151f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 152f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Sub(const Register& rd, 153f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 154f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 155f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Subs(const Register& rd, 156f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 157f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 158f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Cmn(const Register& rn, const Operand& operand); 159f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Cmp(const Register& rn, const Operand& operand); 160f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Neg(const Register& rd, 161f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 162f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Negs(const Register& rd, 163f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 164f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 165f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AddSubMacro(const Register& rd, 166f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 167f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand, 168f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org FlagsUpdate S, 169f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org AddSubOp op); 170f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 171f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Add/sub with carry macros. 172f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Adc(const Register& rd, 173f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 174f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 175f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Adcs(const Register& rd, 176f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 177f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 178f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Sbc(const Register& rd, 179f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 180f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 181f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Sbcs(const Register& rd, 182f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 183f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 184f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ngc(const Register& rd, 185f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 186f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ngcs(const Register& rd, 187f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand); 188f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AddSubWithCarryMacro(const Register& rd, 189f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 190f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand, 191f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org FlagsUpdate S, 192f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org AddSubWithCarryOp op); 193f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 194f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Move macros. 195f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Mov(const Register& rd, 196f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand, 197f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org DiscardMoveMode discard_mode = kDontDiscardForSameWReg); 198f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Mov(const Register& rd, uint64_t imm); 199f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Mvn(const Register& rd, uint64_t imm); 200f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Mvn(const Register& rd, const Operand& operand); 201f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static bool IsImmMovn(uint64_t imm, unsigned reg_size); 202f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static bool IsImmMovz(uint64_t imm, unsigned reg_size); 203f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static unsigned CountClearHalfWords(uint64_t imm, unsigned reg_size); 204f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 205f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Conditional macros. 206f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ccmp(const Register& rn, 207f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand, 208f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org StatusFlags nzcv, 209f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond); 210f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ccmn(const Register& rn, 211f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand, 212f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org StatusFlags nzcv, 213f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond); 214f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void ConditionalCompareMacro(const Register& rn, 215f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand, 216f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org StatusFlags nzcv, 217f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond, 218f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ConditionalCompareOp op); 219f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Csel(const Register& rd, 220f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 221f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& operand, 222f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond); 223f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 224f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Load/store macros. 225f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#define DECLARE_FUNCTION(FN, REGTYPE, REG, OP) \ 226f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void FN(const REGTYPE REG, const MemOperand& addr); 227f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org LS_MACRO_LIST(DECLARE_FUNCTION) 228f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#undef DECLARE_FUNCTION 229f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 230f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadStoreMacro(const CPURegister& rt, 231f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const MemOperand& addr, 232f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org LoadStoreOp op); 233f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 234f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // V8-specific load/store helpers. 235f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Load(const Register& rt, const MemOperand& addr, Representation r); 236f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Store(const Register& rt, const MemOperand& addr, Representation r); 237f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2389e41f9ecf5042292a9efcb36e264b37621199553machenbach@chromium.org enum AdrHint { 2399e41f9ecf5042292a9efcb36e264b37621199553machenbach@chromium.org // The target must be within the immediate range of adr. 2409e41f9ecf5042292a9efcb36e264b37621199553machenbach@chromium.org kAdrNear, 2419e41f9ecf5042292a9efcb36e264b37621199553machenbach@chromium.org // The target may be outside of the immediate range of adr. Additional 2429e41f9ecf5042292a9efcb36e264b37621199553machenbach@chromium.org // instructions may be emitted. 2439e41f9ecf5042292a9efcb36e264b37621199553machenbach@chromium.org kAdrFar 2449e41f9ecf5042292a9efcb36e264b37621199553machenbach@chromium.org }; 2459e41f9ecf5042292a9efcb36e264b37621199553machenbach@chromium.org void Adr(const Register& rd, Label* label, AdrHint = kAdrNear); 2469e41f9ecf5042292a9efcb36e264b37621199553machenbach@chromium.org 247f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Remaining instructions are simple pass-through calls to the assembler. 248f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Asr(const Register& rd, const Register& rn, unsigned shift); 249f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Asr(const Register& rd, const Register& rn, const Register& rm); 250f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 251f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Branch type inversion relies on these relations. 252f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org STATIC_ASSERT((reg_zero == (reg_not_zero ^ 1)) && 253f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org (reg_bit_clear == (reg_bit_set ^ 1)) && 254f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org (always == (never ^ 1))); 255f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 256f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void B(Label* label, BranchType type, Register reg = NoReg, int bit = -1); 257f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 258f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void B(Label* label); 259f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void B(Condition cond, Label* label); 260f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void B(Label* label, Condition cond); 261f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Bfi(const Register& rd, 262f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 263f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned lsb, 264f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned width); 265f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Bfxil(const Register& rd, 266f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 267f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned lsb, 268f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned width); 269f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Bind(Label* label); 270f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Bl(Label* label); 271f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Blr(const Register& xn); 272f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Br(const Register& xn); 273f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Brk(int code); 274f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Cbnz(const Register& rt, Label* label); 275f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Cbz(const Register& rt, Label* label); 276f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Cinc(const Register& rd, const Register& rn, Condition cond); 277f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Cinv(const Register& rd, const Register& rn, Condition cond); 278f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Cls(const Register& rd, const Register& rn); 279f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Clz(const Register& rd, const Register& rn); 280f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Cneg(const Register& rd, const Register& rn, Condition cond); 281f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void CzeroX(const Register& rd, Condition cond); 282f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void CmovX(const Register& rd, const Register& rn, Condition cond); 283f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Cset(const Register& rd, Condition cond); 284f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Csetm(const Register& rd, Condition cond); 285f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Csinc(const Register& rd, 286f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 287f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 288f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond); 289f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Csinv(const Register& rd, 290f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 291f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 292f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond); 293f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Csneg(const Register& rd, 294f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 295f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 296f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond); 297f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Dmb(BarrierDomain domain, BarrierType type); 298f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Dsb(BarrierDomain domain, BarrierType type); 299f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Debug(const char* message, uint32_t code, Instr params = BREAK); 300f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Extr(const Register& rd, 301f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 302f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 303f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned lsb); 304f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fabs(const FPRegister& fd, const FPRegister& fn); 305f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fadd(const FPRegister& fd, 306f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 307f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm); 308f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fccmp(const FPRegister& fn, 309f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm, 310f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org StatusFlags nzcv, 311f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond); 312f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcmp(const FPRegister& fn, const FPRegister& fm); 313f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcmp(const FPRegister& fn, double value); 314f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcsel(const FPRegister& fd, 315f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 316f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm, 317f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond); 318f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcvt(const FPRegister& fd, const FPRegister& fn); 319f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcvtas(const Register& rd, const FPRegister& fn); 320f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcvtau(const Register& rd, const FPRegister& fn); 321f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcvtms(const Register& rd, const FPRegister& fn); 322f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcvtmu(const Register& rd, const FPRegister& fn); 323f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcvtns(const Register& rd, const FPRegister& fn); 324f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcvtnu(const Register& rd, const FPRegister& fn); 325f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcvtzs(const Register& rd, const FPRegister& fn); 326f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fcvtzu(const Register& rd, const FPRegister& fn); 327f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fdiv(const FPRegister& fd, 328f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 329f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm); 330f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmadd(const FPRegister& fd, 331f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 332f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm, 333f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fa); 334f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmax(const FPRegister& fd, 335f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 336f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm); 337f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmaxnm(const FPRegister& fd, 338f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 339f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm); 340f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmin(const FPRegister& fd, 341f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 342f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm); 343f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fminnm(const FPRegister& fd, 344f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 345f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm); 346f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmov(FPRegister fd, FPRegister fn); 347f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmov(FPRegister fd, Register rn); 348381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org // Provide explicit double and float interfaces for FP immediate moves, rather 349381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org // than relying on implicit C++ casts. This allows signalling NaNs to be 350381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org // preserved when the immediate matches the format of fd. Most systems convert 351381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org // signalling NaNs to quiet NaNs when converting between float and double. 352f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmov(FPRegister fd, double imm); 353381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org inline void Fmov(FPRegister fd, float imm); 354381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org // Provide a template to allow other types to be converted automatically. 355381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org template<typename T> 356381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org void Fmov(FPRegister fd, T imm) { 357381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org ASSERT(allow_macro_instructions_); 358381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org Fmov(fd, static_cast<double>(imm)); 359381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org } 360f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmov(Register rd, FPRegister fn); 361f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmsub(const FPRegister& fd, 362f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 363f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm, 364f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fa); 365f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fmul(const FPRegister& fd, 366f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 367f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm); 368f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fneg(const FPRegister& fd, const FPRegister& fn); 369f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fnmadd(const FPRegister& fd, 370f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 371f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm, 372f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fa); 373f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fnmsub(const FPRegister& fd, 374f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 375f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm, 376f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fa); 377f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Frinta(const FPRegister& fd, const FPRegister& fn); 378255043f8054e713a64509c707cfabadd42344683machenbach@chromium.org inline void Frintm(const FPRegister& fd, const FPRegister& fn); 379f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Frintn(const FPRegister& fd, const FPRegister& fn); 380f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Frintz(const FPRegister& fd, const FPRegister& fn); 381f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fsqrt(const FPRegister& fd, const FPRegister& fn); 382f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Fsub(const FPRegister& fd, 383f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fn, 384f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const FPRegister& fm); 385f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Hint(SystemHint code); 386f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Hlt(int code); 387f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Isb(); 388f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ldnp(const CPURegister& rt, 389f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& rt2, 390f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const MemOperand& src); 391f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ldp(const CPURegister& rt, 392f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& rt2, 393f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const MemOperand& src); 394f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ldpsw(const Register& rt, 395f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rt2, 396f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const MemOperand& src); 397e7a6d372100022f492c88886898add6a51e66977machenbach@chromium.org // Load a literal from the inline constant pool. 398e7a6d372100022f492c88886898add6a51e66977machenbach@chromium.org inline void Ldr(const CPURegister& rt, const Immediate& imm); 399e7a6d372100022f492c88886898add6a51e66977machenbach@chromium.org // Helper function for double immediate. 400e7a6d372100022f492c88886898add6a51e66977machenbach@chromium.org inline void Ldr(const CPURegister& rt, double imm); 401f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Lsl(const Register& rd, const Register& rn, unsigned shift); 402f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Lsl(const Register& rd, const Register& rn, const Register& rm); 403f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Lsr(const Register& rd, const Register& rn, unsigned shift); 404f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Lsr(const Register& rd, const Register& rn, const Register& rm); 405f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Madd(const Register& rd, 406f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 407f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 408f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& ra); 409f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Mneg(const Register& rd, const Register& rn, const Register& rm); 410f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Mov(const Register& rd, const Register& rm); 411f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Movk(const Register& rd, uint64_t imm, int shift = -1); 412f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Mrs(const Register& rt, SystemRegister sysreg); 413f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Msr(SystemRegister sysreg, const Register& rt); 414f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Msub(const Register& rd, 415f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 416f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 417f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& ra); 418f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Mul(const Register& rd, const Register& rn, const Register& rm); 419f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Nop() { nop(); } 420f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Rbit(const Register& rd, const Register& rn); 421f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ret(const Register& xn = lr); 422f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Rev(const Register& rd, const Register& rn); 423f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Rev16(const Register& rd, const Register& rn); 424f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Rev32(const Register& rd, const Register& rn); 425f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ror(const Register& rd, const Register& rs, unsigned shift); 426f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ror(const Register& rd, const Register& rn, const Register& rm); 427f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Sbfiz(const Register& rd, 428f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 429f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned lsb, 430f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned width); 431f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Sbfx(const Register& rd, 432f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 433f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned lsb, 434f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned width); 435f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Scvtf(const FPRegister& fd, 436f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 437f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned fbits = 0); 438f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Sdiv(const Register& rd, const Register& rn, const Register& rm); 439f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Smaddl(const Register& rd, 440f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 441f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 442f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& ra); 443f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Smsubl(const Register& rd, 444f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 445f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 446f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& ra); 447f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Smull(const Register& rd, 448f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 449f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm); 450f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Smulh(const Register& rd, 451f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 452f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm); 453f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Stnp(const CPURegister& rt, 454f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& rt2, 455f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const MemOperand& dst); 456f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Stp(const CPURegister& rt, 457f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& rt2, 458f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const MemOperand& dst); 459f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Sxtb(const Register& rd, const Register& rn); 460f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Sxth(const Register& rd, const Register& rn); 461f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Sxtw(const Register& rd, const Register& rn); 462f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Tbnz(const Register& rt, unsigned bit_pos, Label* label); 463f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Tbz(const Register& rt, unsigned bit_pos, Label* label); 464f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ubfiz(const Register& rd, 465f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 466f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned lsb, 467f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned width); 468f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ubfx(const Register& rd, 469f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 470f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned lsb, 471f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned width); 472f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Ucvtf(const FPRegister& fd, 473f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 474f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org unsigned fbits = 0); 475f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Udiv(const Register& rd, const Register& rn, const Register& rm); 476f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Umaddl(const Register& rd, 477f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 478f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 479f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& ra); 480f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Umsubl(const Register& rd, 481f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rn, 482f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& rm, 483f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& ra); 484f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Uxtb(const Register& rd, const Register& rn); 485f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Uxth(const Register& rd, const Register& rn); 486f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Uxtw(const Register& rd, const Register& rn); 487f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 488f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Pseudo-instructions ------------------------------------------------------ 489f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 490f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compute rd = abs(rm). 4918f8fe81d7a9cced7a0d30e56124c0428d1a6d229machenbach@chromium.org // This function clobbers the condition flags. On output the overflow flag is 4928f8fe81d7a9cced7a0d30e56124c0428d1a6d229machenbach@chromium.org // set iff the negation overflowed. 493f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 494f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If rm is the minimum representable value, the result is not representable. 495f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Handlers for each case can be specified using the relevant labels. 496f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Abs(const Register& rd, const Register& rm, 497f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label * is_not_representable = NULL, 498f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label * is_representable = NULL); 499f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 500f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Push or pop up to 4 registers of the same width to or from the stack, 501f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // using the current stack pointer as set by SetStackPointer. 502f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 503f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If an argument register is 'NoReg', all further arguments are also assumed 504f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // to be 'NoReg', and are thus not pushed or popped. 505f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 506f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Arguments are ordered such that "Push(a, b);" is functionally equivalent 507f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // to "Push(a); Push(b);". 508f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 509f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // It is valid to push the same register more than once, and there is no 510f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // restriction on the order in which registers are specified. 511f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 512f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // It is not valid to pop into the same register more than once in one 513f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // operation, not even into the zero register. 514f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 515f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If the current stack pointer (as set by SetStackPointer) is csp, then it 516f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // must be aligned to 16 bytes on entry and the total size of the specified 517f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // registers must also be a multiple of 16 bytes. 518f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 519f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Even if the current stack pointer is not the system stack pointer (csp), 520f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Push (and derived methods) will still modify the system stack pointer in 521f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // order to comply with ABI rules about accessing memory below the system 522f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // stack pointer. 523f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 524f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Other than the registers passed into Pop, the stack pointer and (possibly) 525f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the system stack pointer, these methods do not modify any other registers. 526f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Push(const CPURegister& src0, const CPURegister& src1 = NoReg, 527f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& src2 = NoReg, const CPURegister& src3 = NoReg); 5289801e3c558f3df82f01ac626b6171032afa33819machenbach@chromium.org void Push(const CPURegister& src0, const CPURegister& src1, 5299801e3c558f3df82f01ac626b6171032afa33819machenbach@chromium.org const CPURegister& src2, const CPURegister& src3, 5309801e3c558f3df82f01ac626b6171032afa33819machenbach@chromium.org const CPURegister& src4, const CPURegister& src5 = NoReg, 5319801e3c558f3df82f01ac626b6171032afa33819machenbach@chromium.org const CPURegister& src6 = NoReg, const CPURegister& src7 = NoReg); 532f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Pop(const CPURegister& dst0, const CPURegister& dst1 = NoReg, 533f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& dst2 = NoReg, const CPURegister& dst3 = NoReg); 534f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 535f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Alternative forms of Push and Pop, taking a RegList or CPURegList that 536f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // specifies the registers that are to be pushed or popped. Higher-numbered 537f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // registers are associated with higher memory addresses (as in the A32 push 538f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // and pop instructions). 539f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 540f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // (Push|Pop)SizeRegList allow you to specify the register size as a 54197b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org // parameter. Only kXRegSizeInBits, kWRegSizeInBits, kDRegSizeInBits and 54297b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org // kSRegSizeInBits are supported. 543f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 544f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Otherwise, (Push|Pop)(CPU|X|W|D|S)RegList is preferred. 545f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PushCPURegList(CPURegList registers); 546f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PopCPURegList(CPURegList registers); 547f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 548f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PushSizeRegList(RegList registers, unsigned reg_size, 549f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org CPURegister::RegisterType type = CPURegister::kRegister) { 550f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org PushCPURegList(CPURegList(type, reg_size, registers)); 551f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 552f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PopSizeRegList(RegList registers, unsigned reg_size, 553f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org CPURegister::RegisterType type = CPURegister::kRegister) { 554f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org PopCPURegList(CPURegList(type, reg_size, registers)); 555f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 556f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PushXRegList(RegList regs) { 55797b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org PushSizeRegList(regs, kXRegSizeInBits); 558f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 559f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PopXRegList(RegList regs) { 56097b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org PopSizeRegList(regs, kXRegSizeInBits); 561f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 562f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PushWRegList(RegList regs) { 56397b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org PushSizeRegList(regs, kWRegSizeInBits); 564f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 565f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PopWRegList(RegList regs) { 56697b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org PopSizeRegList(regs, kWRegSizeInBits); 567f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 568f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PushDRegList(RegList regs) { 56997b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org PushSizeRegList(regs, kDRegSizeInBits, CPURegister::kFPRegister); 570f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 571f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PopDRegList(RegList regs) { 57297b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org PopSizeRegList(regs, kDRegSizeInBits, CPURegister::kFPRegister); 573f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 574f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PushSRegList(RegList regs) { 57597b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org PushSizeRegList(regs, kSRegSizeInBits, CPURegister::kFPRegister); 576f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 577f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void PopSRegList(RegList regs) { 57897b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org PopSizeRegList(regs, kSRegSizeInBits, CPURegister::kFPRegister); 579f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 580f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 581f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Push the specified register 'count' times. 582f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PushMultipleTimes(CPURegister src, Register count); 583f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PushMultipleTimes(CPURegister src, int count); 584f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 585f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This is a convenience method for pushing a single Handle<Object>. 586f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Push(Handle<Object> handle); 587f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Push(Smi* smi) { Push(Handle<Smi>(smi, isolate())); } 588f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 589f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Aliases of Push and Pop, required for V8 compatibility. 590f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void push(Register src) { 591f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Push(src); 592f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 593f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void pop(Register dst) { 594f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Pop(dst); 595f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 596f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 597f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Sometimes callers need to push or pop multiple registers in a way that is 598f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // difficult to structure efficiently for fixed Push or Pop calls. This scope 599f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // allows push requests to be queued up, then flushed at once. The 600f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // MacroAssembler will try to generate the most efficient sequence required. 601f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 602f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Unlike the other Push and Pop macros, PushPopQueue can handle mixed sets of 603f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // register sizes and types. 604f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org class PushPopQueue { 605f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org public: 606f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org explicit PushPopQueue(MacroAssembler* masm) : masm_(masm), size_(0) { } 607f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 608f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ~PushPopQueue() { 609f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ASSERT(queued_.empty()); 610f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 611f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 612f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Queue(const CPURegister& rt) { 613f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org size_ += rt.SizeInBytes(); 614f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org queued_.push_back(rt); 615f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 616f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 617011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org enum PreambleDirective { 618011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org WITH_PREAMBLE, 619011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org SKIP_PREAMBLE 620011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org }; 621011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org void PushQueued(PreambleDirective preamble_directive = WITH_PREAMBLE); 622f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PopQueued(); 623f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 624f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org private: 625f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org MacroAssembler* masm_; 626f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int size_; 627f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org std::vector<CPURegister> queued_; 628f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org }; 629f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 630f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Poke 'src' onto the stack. The offset is in bytes. 631f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 632f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If the current stack pointer (according to StackPointer()) is csp, then 633f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // csp must be aligned to 16 bytes. 634f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Poke(const CPURegister& src, const Operand& offset); 635f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 636f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Peek at a value on the stack, and put it in 'dst'. The offset is in bytes. 637f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 638f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If the current stack pointer (according to StackPointer()) is csp, then 639f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // csp must be aligned to 16 bytes. 640f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Peek(const CPURegister& dst, const Operand& offset); 641f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 642f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Poke 'src1' and 'src2' onto the stack. The values written will be adjacent 643f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // with 'src2' at a higher address than 'src1'. The offset is in bytes. 644f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 645f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If the current stack pointer (according to StackPointer()) is csp, then 646f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // csp must be aligned to 16 bytes. 647f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PokePair(const CPURegister& src1, const CPURegister& src2, int offset); 648f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 649f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Peek at two values on the stack, and put them in 'dst1' and 'dst2'. The 650f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // values peeked will be adjacent, with the value in 'dst2' being from a 651f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // higher address than 'dst1'. The offset is in bytes. 652f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 653f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If the current stack pointer (according to StackPointer()) is csp, then 654f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // csp must be aligned to 16 bytes. 655f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PeekPair(const CPURegister& dst1, const CPURegister& dst2, int offset); 656f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 657f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Claim or drop stack space without actually accessing memory. 658f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 659f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // In debug mode, both of these will write invalid data into the claimed or 660f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // dropped space. 661f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 662f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If the current stack pointer (according to StackPointer()) is csp, then it 663f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // must be aligned to 16 bytes and the size claimed or dropped must be a 664f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // multiple of 16 bytes. 665f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 666f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Note that unit_size must be specified in bytes. For variants which take a 667f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Register count, the unit size must be a power of two. 66897b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org inline void Claim(uint64_t count, uint64_t unit_size = kXRegSize); 669f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Claim(const Register& count, 67097b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org uint64_t unit_size = kXRegSize); 67197b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org inline void Drop(uint64_t count, uint64_t unit_size = kXRegSize); 672f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Drop(const Register& count, 67397b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org uint64_t unit_size = kXRegSize); 674f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 675f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Variants of Claim and Drop, where the 'count' parameter is a SMI held in a 676f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // register. 677f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void ClaimBySMI(const Register& count_smi, 67897b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org uint64_t unit_size = kXRegSize); 679f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void DropBySMI(const Register& count_smi, 68097b98c9169c85693801d4d59089450695ad82e2dmachenbach@chromium.org uint64_t unit_size = kXRegSize); 681f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 682f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compare a register with an operand, and branch to label depending on the 683f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // condition. May corrupt the status flags. 684f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void CompareAndBranch(const Register& lhs, 685f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& rhs, 686f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond, 687f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* label); 688f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 689f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Test the bits of register defined by bit_pattern, and branch if ANY of 690f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // those bits are set. May corrupt the status flags. 691f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void TestAndBranchIfAnySet(const Register& reg, 692f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const uint64_t bit_pattern, 693f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* label); 694f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 695f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Test the bits of register defined by bit_pattern, and branch if ALL of 696f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // those bits are clear (ie. not set.) May corrupt the status flags. 697f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void TestAndBranchIfAllClear(const Register& reg, 698f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const uint64_t bit_pattern, 699f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* label); 700f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 701f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Insert one or more instructions into the instruction stream that encode 702f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // some caller-defined data. The instructions used will be executable with no 703f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // side effects. 704f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void InlineData(uint64_t data); 705f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 706f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Insert an instrumentation enable marker into the instruction stream. 707f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void EnableInstrumentation(); 708f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 709f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Insert an instrumentation disable marker into the instruction stream. 710f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void DisableInstrumentation(); 711f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 712f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Insert an instrumentation event marker into the instruction stream. These 713f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // will be picked up by the instrumentation system to annotate an instruction 714f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // profile. The argument marker_name must be a printable two character string; 715f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // it will be encoded in the event marker. 716f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void AnnotateInstrumentation(const char* marker_name); 717f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 718f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If emit_debug_code() is true, emit a run-time check to ensure that 719f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // StackPointer() does not point below the system stack pointer. 720f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 721f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Whilst it is architecturally legal for StackPointer() to point below csp, 722f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // it can be evidence of a potential bug because the ABI forbids accesses 723f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // below csp. 724f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 7253c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // If StackPointer() is the system stack pointer (csp) or ALWAYS_ALIGN_CSP is 7263c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // enabled, then csp will be dereferenced to cause the processor 7273c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // (or simulator) to abort if it is not properly aligned. 728f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 7293c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // If emit_debug_code() is false, this emits no code. 730f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertStackConsistency(); 731f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 732f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Preserve the callee-saved registers (as defined by AAPCS64). 733f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 734f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Higher-numbered registers are pushed before lower-numbered registers, and 735f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // thus get higher addresses. 736f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Floating-point registers are pushed before general-purpose registers, and 737f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // thus get higher addresses. 738f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 739f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Note that registers are not checked for invalid values. Use this method 740f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // only if you know that the GC won't try to examine the values on the stack. 741f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 742f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This method must not be called unless the current stack pointer (as set by 743f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // SetStackPointer) is the system stack pointer (csp), and is aligned to 744f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // ActivationFrameAlignment(). 745f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PushCalleeSavedRegisters(); 746f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 747f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Restore the callee-saved registers (as defined by AAPCS64). 748f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 749f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Higher-numbered registers are popped after lower-numbered registers, and 750f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // thus come from higher addresses. 751f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Floating-point registers are popped after general-purpose registers, and 752f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // thus come from higher addresses. 753f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 754f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This method must not be called unless the current stack pointer (as set by 755f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // SetStackPointer) is the system stack pointer (csp), and is aligned to 756f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // ActivationFrameAlignment(). 757f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PopCalleeSavedRegisters(); 758f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 759f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Set the current stack pointer, but don't generate any code. 760f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void SetStackPointer(const Register& stack_pointer) { 761bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org ASSERT(!TmpList()->IncludesAliasOf(stack_pointer)); 762f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org sp_ = stack_pointer; 763f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 764f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 765f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Return the current stack pointer, as set by SetStackPointer. 766f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline const Register& StackPointer() const { 767f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org return sp_; 768f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 769f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 770f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Align csp for a frame, as per ActivationFrameAlignment, and make it the 771f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // current stack pointer. 772f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void AlignAndSetCSPForFrame() { 773f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int sp_alignment = ActivationFrameAlignment(); 774f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // AAPCS64 mandates at least 16-byte alignment. 775f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ASSERT(sp_alignment >= 16); 776f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ASSERT(IsPowerOf2(sp_alignment)); 777f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Bic(csp, StackPointer(), sp_alignment - 1); 778f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SetStackPointer(csp); 779f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 780f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 781f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Push the system stack pointer (csp) down to allow the same to be done to 782f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the current stack pointer (according to StackPointer()). This must be 783f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // called _before_ accessing the memory. 784f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 785f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This is necessary when pushing or otherwise adding things to the stack, to 786f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // satisfy the AAPCS64 constraint that the memory below the system stack 7873c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // pointer is not accessed. The amount pushed will be increased as necessary 7883c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // to ensure csp remains aligned to 16 bytes. 789f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 790f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This method asserts that StackPointer() is not csp, since the call does 791f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // not make sense in that context. 792f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void BumpSystemStackPointer(const Operand& space); 793f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 7943c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // Re-synchronizes the system stack pointer (csp) with the current stack 7953c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // pointer (according to StackPointer()). This function will ensure the 7963c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // new value of the system stack pointer is remains aligned to 16 bytes, and 7973c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // is lower than or equal to the value of the current stack pointer. 7983c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // 7993c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // This method asserts that StackPointer() is not csp, since the call does 8003c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org // not make sense in that context. 8013c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org inline void SyncSystemStackPointer(); 8023c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org 803f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Helpers ------------------------------------------------------------------ 804f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Root register. 805f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void InitializeRootRegister(); 806f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 80729699e37f62a9aa96c100f29bc8ea3668acff099machenbach@chromium.org void AssertFPCRState(Register fpcr = NoReg); 80829699e37f62a9aa96c100f29bc8ea3668acff099machenbach@chromium.org void ConfigureFPCR(); 80929699e37f62a9aa96c100f29bc8ea3668acff099machenbach@chromium.org void CanonicalizeNaN(const FPRegister& dst, const FPRegister& src); 81029699e37f62a9aa96c100f29bc8ea3668acff099machenbach@chromium.org void CanonicalizeNaN(const FPRegister& reg) { 81129699e37f62a9aa96c100f29bc8ea3668acff099machenbach@chromium.org CanonicalizeNaN(reg, reg); 81229699e37f62a9aa96c100f29bc8ea3668acff099machenbach@chromium.org } 81329699e37f62a9aa96c100f29bc8ea3668acff099machenbach@chromium.org 814f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Load an object from the root table. 81563a7c9f848e755c52a37721debae242cf5d1682dmachenbach@chromium.org void LoadRoot(CPURegister destination, 816f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Heap::RootListIndex index); 817f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Store an object to the root table. 818f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void StoreRoot(Register source, 819f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Heap::RootListIndex index); 820f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 821f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Load both TrueValue and FalseValue roots. 822f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadTrueFalseRoots(Register true_root, Register false_root); 823f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 824f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadHeapObject(Register dst, Handle<HeapObject> object); 825f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 826f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadObject(Register result, Handle<Object> object) { 827f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org AllowDeferredHandleDereference heap_object_check; 828f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org if (object->IsHeapObject()) { 829f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org LoadHeapObject(result, Handle<HeapObject>::cast(object)); 830f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } else { 831f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ASSERT(object->IsSmi()); 832f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Mov(result, Operand(object)); 833f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 834f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 835f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 836f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static int SafepointRegisterStackIndex(int reg_code); 837f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 838f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This is required for compatibility with architecture independant code. 839f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Remove if not needed. 840f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void Move(Register dst, Register src) { Mov(dst, src); } 841f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 842f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadInstanceDescriptors(Register map, 843f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register descriptors); 844f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void EnumLengthUntagged(Register dst, Register map); 845f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void EnumLengthSmi(Register dst, Register map); 846f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void NumberOfOwnDescriptors(Register dst, Register map); 847f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 848f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org template<typename Field> 849011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org void DecodeField(Register dst, Register src) { 8503c3c8d733702cb2b41471efa5eead1faf5b5711bmachenbach@chromium.org static const uint64_t shift = Field::kShift; 851f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static const uint64_t setbits = CountSetBits(Field::kMask, 32); 852011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org Ubfx(dst, src, shift, setbits); 853011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org } 854011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org 855011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org template<typename Field> 856011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org void DecodeField(Register reg) { 857011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org DecodeField<Field>(reg, reg); 858f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 859f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 860f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // ---- SMI and Number Utilities ---- 861f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 862f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void SmiTag(Register dst, Register src); 863f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void SmiTag(Register smi); 864f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void SmiUntag(Register dst, Register src); 865f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void SmiUntag(Register smi); 866f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void SmiUntagToDouble(FPRegister dst, 867f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register src, 868f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org UntagMode mode = kNotSpeculativeUntag); 869f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void SmiUntagToFloat(FPRegister dst, 870f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register src, 871f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org UntagMode mode = kNotSpeculativeUntag); 872f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 8731e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org // Tag and push in one step. 8741e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org inline void SmiTagAndPush(Register src); 8751e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org inline void SmiTagAndPush(Register src1, Register src2); 8761e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org 877f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compute the absolute value of 'smi' and leave the result in 'smi' 878f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // register. If 'smi' is the most negative SMI, the absolute value cannot 879f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // be represented as a SMI and a jump to 'slow' is done. 880f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void SmiAbs(const Register& smi, Label* slow); 881f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 882f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void JumpIfSmi(Register value, 883f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* smi_label, 884f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* not_smi_label = NULL); 885f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void JumpIfNotSmi(Register value, Label* not_smi_label); 886f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void JumpIfBothSmi(Register value1, 887f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register value2, 888f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* both_smi_label, 889f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* not_smi_label = NULL); 890f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void JumpIfEitherSmi(Register value1, 891f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register value2, 892f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* either_smi_label, 893f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* not_smi_label = NULL); 894f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void JumpIfEitherNotSmi(Register value1, 895f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register value2, 896f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* not_smi_label); 897f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void JumpIfBothNotSmi(Register value1, 898f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register value2, 899f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* not_smi_label); 900f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 901f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Abort execution if argument is a smi, enabled via --debug-code. 902f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertNotSmi(Register object, BailoutReason reason = kOperandIsASmi); 903f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertSmi(Register object, BailoutReason reason = kOperandIsNotASmi); 904f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 90563a7c9f848e755c52a37721debae242cf5d1682dmachenbach@chromium.org inline void ObjectTag(Register tagged_obj, Register obj); 90663a7c9f848e755c52a37721debae242cf5d1682dmachenbach@chromium.org inline void ObjectUntag(Register untagged_obj, Register obj); 90763a7c9f848e755c52a37721debae242cf5d1682dmachenbach@chromium.org 908f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Abort execution if argument is not a name, enabled via --debug-code. 909f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertName(Register object); 910f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 9112904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org // Abort execution if argument is not undefined or an AllocationSite, enabled 9122904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org // via --debug-code. 9132904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org void AssertUndefinedOrAllocationSite(Register object, Register scratch); 9142904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org 915f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Abort execution if argument is not a string, enabled via --debug-code. 916f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertString(Register object); 917f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 918f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpForHeapNumber(Register object, 919f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register heap_number_map, 920f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* on_heap_number, 921f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* on_not_heap_number = NULL); 922f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfHeapNumber(Register object, 923f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* on_heap_number, 924f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register heap_number_map = NoReg); 925f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfNotHeapNumber(Register object, 926f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* on_not_heap_number, 927f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register heap_number_map = NoReg); 928f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 9292904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org // Sets the vs flag if the input is -0.0. 9302904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org void TestForMinusZero(DoubleRegister input); 9312904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org 932f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Jump to label if the input double register contains -0.0. 933f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfMinusZero(DoubleRegister input, Label* on_negative_zero); 934aa107b240dc43417fae8469b5c1b0f1ec9f98400machenbach@chromium.org 935aa107b240dc43417fae8469b5c1b0f1ec9f98400machenbach@chromium.org // Jump to label if the input integer register contains the double precision 936aa107b240dc43417fae8469b5c1b0f1ec9f98400machenbach@chromium.org // floating point representation of -0.0. 937aa107b240dc43417fae8469b5c1b0f1ec9f98400machenbach@chromium.org void JumpIfMinusZero(Register input, Label* on_negative_zero); 938f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 939f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Generate code to do a lookup in the number string cache. If the number in 940f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the register object is found in the cache the generated code falls through 941f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // with the result in the result register. The object and the result register 942f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // can be the same. If the number is not found in the cache the code jumps to 943f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the label not_found with only the content of register object unchanged. 944f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LookupNumberStringCache(Register object, 945f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register result, 946f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 947f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 948f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch3, 949f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* not_found); 950f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 951f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Saturate a signed 32-bit integer in input to an unsigned 8-bit integer in 952f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // output. 953f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void ClampInt32ToUint8(Register in_out); 954f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void ClampInt32ToUint8(Register output, Register input); 955f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 956f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Saturate a double in input to an unsigned 8-bit integer in output. 957f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void ClampDoubleToUint8(Register output, 958f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org DoubleRegister input, 959f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org DoubleRegister dbl_scratch); 960f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 9613484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org // Try to represent a double as a signed 32-bit int. 962f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This succeeds if the result compares equal to the input, so inputs of -0.0 9633484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org // are represented as 0 and handled as a success. 9642904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org // 9653484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org // On output the Z flag is set if the operation was successful. 9663484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org void TryRepresentDoubleAsInt32(Register as_int, 9673484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org FPRegister value, 9683484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org FPRegister scratch_d, 9693484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org Label* on_successful_conversion = NULL, 9703484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org Label* on_failed_conversion = NULL) { 971f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ASSERT(as_int.Is32Bits()); 9723484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org TryRepresentDoubleAsInt(as_int, value, scratch_d, on_successful_conversion, 9733484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org on_failed_conversion); 974f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 975f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 9763484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org // Try to represent a double as a signed 64-bit int. 977f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This succeeds if the result compares equal to the input, so inputs of -0.0 9783484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org // are represented as 0 and handled as a success. 9792904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org // 9803484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org // On output the Z flag is set if the operation was successful. 9813484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org void TryRepresentDoubleAsInt64(Register as_int, 9823484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org FPRegister value, 9833484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org FPRegister scratch_d, 9843484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org Label* on_successful_conversion = NULL, 9853484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org Label* on_failed_conversion = NULL) { 986f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ASSERT(as_int.Is64Bits()); 9873484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org TryRepresentDoubleAsInt(as_int, value, scratch_d, on_successful_conversion, 9883484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org on_failed_conversion); 989f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 990f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 991f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // ---- Object Utilities ---- 992f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 993f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Copy fields from 'src' to 'dst', where both are tagged objects. 994f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The 'temps' list is a list of X registers which can be used for scratch 995bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org // values. The temps list must include at least one register. 996f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 997f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Currently, CopyFields cannot make use of more than three registers from 998f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the 'temps' list. 999f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1000bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org // CopyFields expects to be able to take at least two registers from 1001bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org // MacroAssembler::TmpList(). 1002f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CopyFields(Register dst, Register src, CPURegList temps, unsigned count); 1003f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1004381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org // Starting at address in dst, initialize field_count 64-bit fields with 1005381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org // 64-bit value in register filler. Register dst is corrupted. 1006381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org void FillFields(Register dst, 1007381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org Register field_count, 1008381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org Register filler); 1009381adef828187e237e8758ab730dee1c2834a0b3machenbach@chromium.org 1010f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Copies a number of bytes from src to dst. All passed registers are 1011f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // clobbered. On exit src and dst will point to the place just after where the 1012f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // last byte was read or written and length will be zero. Hint may be used to 1013f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // determine which is the most efficient algorithm to use for copying. 1014f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CopyBytes(Register dst, 1015f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register src, 1016f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register length, 1017f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1018f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org CopyHint hint = kCopyUnknown); 1019f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1020f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // ---- String Utilities ---- 1021f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1022f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1023f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Jump to label if either object is not a sequential ASCII string. 1024f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Optionally perform a smi check on the objects first. 1025f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfEitherIsNotSequentialAsciiStrings( 1026f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register first, 1027f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register second, 1028f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1029f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1030f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* failure, 1031f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SmiCheckType smi_check = DO_SMI_CHECK); 1032f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1033f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Check if instance type is sequential ASCII string and jump to label if 1034f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // it is not. 1035f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfInstanceTypeIsNotSequentialAscii(Register type, 1036f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1037f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* failure); 1038f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1039f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Checks if both instance types are sequential ASCII strings and jumps to 1040f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // label if either is not. 1041f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfEitherInstanceTypeIsNotSequentialAscii( 1042f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register first_object_instance_type, 1043f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register second_object_instance_type, 1044f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1045f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1046f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* failure); 1047f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1048f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Checks if both instance types are sequential ASCII strings and jumps to 1049f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // label if either is not. 1050f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfBothInstanceTypesAreNotSequentialAscii( 1051f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register first_object_instance_type, 1052f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register second_object_instance_type, 1053f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1054f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1055f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* failure); 1056f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1057f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfNotUniqueName(Register type, Label* not_unique_name); 1058f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1059f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // ---- Calling / Jumping helpers ---- 1060f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1061f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This is required for compatibility in architecture indepenedant code. 1062f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void jmp(Label* L) { B(L); } 1063f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1064f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Passes thrown value to the handler of top of the try handler chain. 1065f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Register value must be x0. 1066f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Throw(Register value, 1067f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1068f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1069f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch3, 1070f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch4); 1071f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1072f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Propagates an uncatchable exception to the top of the current JS stack's 1073f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // handler chain. Register value must be x0. 1074f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void ThrowUncatchable(Register value, 1075f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1076f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1077f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch3, 1078f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch4); 1079f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1080f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CallStub(CodeStub* stub, TypeFeedbackId ast_id = TypeFeedbackId::None()); 1081f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TailCallStub(CodeStub* stub); 1082f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1083f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CallRuntime(const Runtime::Function* f, 1084f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_arguments, 1085f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SaveFPRegsMode save_doubles = kDontSaveFPRegs); 1086f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1087f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CallRuntime(Runtime::FunctionId id, 1088f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_arguments, 1089f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SaveFPRegsMode save_doubles = kDontSaveFPRegs) { 1090f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org CallRuntime(Runtime::FunctionForId(id), num_arguments, save_doubles); 1091f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1092f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1093f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CallRuntimeSaveDoubles(Runtime::FunctionId id) { 1094f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Runtime::Function* function = Runtime::FunctionForId(id); 1095f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org CallRuntime(function, function->nargs, kSaveFPRegs); 1096f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1097f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1098f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TailCallRuntime(Runtime::FunctionId fid, 1099f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_arguments, 1100f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int result_size); 1101f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1102f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int ActivationFrameAlignment(); 1103f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1104f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Calls a C function. 1105f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The called function is not allowed to trigger a 1106f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // garbage collection, since that might move the code and invalidate the 1107f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // return address (unless this is somehow accounted for by the called 1108f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // function). 1109f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CallCFunction(ExternalReference function, 1110f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_reg_arguments); 1111f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CallCFunction(ExternalReference function, 1112f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_reg_arguments, 1113f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_double_arguments); 1114f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CallCFunction(Register function, 1115f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_reg_arguments, 1116f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_double_arguments); 1117f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1118f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Calls an API function. Allocates HandleScope, extracts returned value 1119f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // from handle and propagates exceptions. 1120f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 'stack_space' is the space to be unwound on exit (includes the call JS 1121f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // arguments space and the additional space allocated for the fast call). 1122f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 'spill_offset' is the offset from the stack pointer where 1123f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // CallApiFunctionAndReturn can spill registers. 1124f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CallApiFunctionAndReturn(Register function_address, 1125f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ExternalReference thunk_ref, 1126f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int stack_space, 1127f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int spill_offset, 1128f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org MemOperand return_value_operand, 1129f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org MemOperand* context_restore_operand); 1130f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1131f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The number of register that CallApiFunctionAndReturn will need to save on 1132f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the stack. The space for these registers need to be allocated in the 1133f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // ExitFrame before calling CallApiFunctionAndReturn. 1134f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static const int kCallApiFunctionSpillSpace = 4; 1135f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1136f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Jump to a runtime routine. 1137f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpToExternalReference(const ExternalReference& builtin); 1138f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Tail call of a runtime routine (jump). 1139f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Like JumpToExternalReference, but also takes care of passing the number 1140f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // of parameters. 1141f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TailCallExternalReference(const ExternalReference& ext, 1142f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_arguments, 1143f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int result_size); 1144f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CallExternalReference(const ExternalReference& ext, 1145f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int num_arguments); 1146f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1147f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1148f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Invoke specified builtin JavaScript function. Adds an entry to 1149f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the unresolved list if the name does not resolve. 1150f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void InvokeBuiltin(Builtins::JavaScript id, 1151f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InvokeFlag flag, 1152f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CallWrapper& call_wrapper = NullCallWrapper()); 1153f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1154f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Store the code object for the given builtin in the target register and 1155486536df718553960f9700559e80e5b10b0d5994dslomov@chromium.org // setup the function in the function register. 1156486536df718553960f9700559e80e5b10b0d5994dslomov@chromium.org void GetBuiltinEntry(Register target, 1157486536df718553960f9700559e80e5b10b0d5994dslomov@chromium.org Register function, 1158486536df718553960f9700559e80e5b10b0d5994dslomov@chromium.org Builtins::JavaScript id); 1159f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1160f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Store the function for the given builtin in the target register. 1161f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void GetBuiltinFunction(Register target, Builtins::JavaScript id); 1162f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1163f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Jump(Register target); 1164f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Jump(Address target, RelocInfo::Mode rmode); 1165f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Jump(Handle<Code> code, RelocInfo::Mode rmode); 1166f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Jump(intptr_t target, RelocInfo::Mode rmode); 1167f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1168f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Call(Register target); 1169f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Call(Label* target); 1170f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Call(Address target, RelocInfo::Mode rmode); 1171f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Call(Handle<Code> code, 1172f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org RelocInfo::Mode rmode = RelocInfo::CODE_TARGET, 1173f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org TypeFeedbackId ast_id = TypeFeedbackId::None()); 1174f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1175f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // For every Call variant, there is a matching CallSize function that returns 1176f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the size (in bytes) of the call sequence. 1177f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static int CallSize(Register target); 1178f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static int CallSize(Label* target); 1179f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static int CallSize(Address target, RelocInfo::Mode rmode); 1180f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static int CallSize(Handle<Code> code, 1181f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org RelocInfo::Mode rmode = RelocInfo::CODE_TARGET, 1182f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org TypeFeedbackId ast_id = TypeFeedbackId::None()); 1183f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1184f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Registers used through the invocation chain are hard-coded. 1185f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // We force passing the parameters to ensure the contracts are correctly 1186f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // honoured by the caller. 1187f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 'function' must be x1. 1188f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 'actual' must use an immediate or x0. 1189f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 'expected' must use an immediate or x2. 1190f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 'call_kind' must be x5. 1191f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void InvokePrologue(const ParameterCount& expected, 1192f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const ParameterCount& actual, 1193f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Handle<Code> code_constant, 1194f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register code_reg, 1195f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* done, 1196f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InvokeFlag flag, 1197f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool* definitely_mismatches, 1198f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CallWrapper& call_wrapper); 1199f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void InvokeCode(Register code, 1200f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const ParameterCount& expected, 1201f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const ParameterCount& actual, 1202f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InvokeFlag flag, 1203f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CallWrapper& call_wrapper); 1204f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Invoke the JavaScript function in the given register. 1205f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Changes the current context to the context in the function before invoking. 1206f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void InvokeFunction(Register function, 1207f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const ParameterCount& actual, 1208f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InvokeFlag flag, 1209f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CallWrapper& call_wrapper); 1210f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void InvokeFunction(Register function, 1211f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const ParameterCount& expected, 1212f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const ParameterCount& actual, 1213f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InvokeFlag flag, 1214f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CallWrapper& call_wrapper); 1215f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void InvokeFunction(Handle<JSFunction> function, 1216f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const ParameterCount& expected, 1217f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const ParameterCount& actual, 1218f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InvokeFlag flag, 1219f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CallWrapper& call_wrapper); 1220f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1221f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1222f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // ---- Floating point helpers ---- 1223f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1224f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Perform a conversion from a double to a signed int64. If the input fits in 1225f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // range of the 64-bit result, execution branches to done. Otherwise, 1226f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // execution falls through, and the sign of the result can be used to 1227f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // determine if overflow was towards positive or negative infinity. 1228f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1229f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // On successful conversion, the least significant 32 bits of the result are 1230f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // equivalent to the ECMA-262 operation "ToInt32". 1231f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1232fa0c3c69b9d632e5730bdd9c745c375beef5e54dmachenbach@chromium.org // Only public for the test code in test-code-stubs-arm64.cc. 1233f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TryConvertDoubleToInt64(Register result, 1234f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org DoubleRegister input, 1235f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* done); 1236f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1237f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Performs a truncating conversion of a floating point number as used by 1238f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the JS bitwise operations. See ECMA-262 9.5: ToInt32. 1239f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Exits with 'result' holding the answer. 1240f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TruncateDoubleToI(Register result, DoubleRegister double_input); 1241f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1242f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Performs a truncating conversion of a heap number as used by 1243f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the JS bitwise operations. See ECMA-262 9.5: ToInt32. 'result' and 'input' 1244f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // must be different registers. Exits with 'result' holding the answer. 1245f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TruncateHeapNumberToI(Register result, Register object); 1246f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1247f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Converts the smi or heap number in object to an int32 using the rules 1248f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // for ToInt32 as described in ECMAScript 9.5.: the value is truncated 1249f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // and brought into the range -2^31 .. +2^31 - 1. 'result' and 'input' must be 1250f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // different registers. 1251f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TruncateNumberToI(Register object, 1252f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register result, 1253f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register heap_number_map, 1254f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* not_int32); 1255f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1256f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // ---- Code generation helpers ---- 1257f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1258f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void set_generating_stub(bool value) { generating_stub_ = value; } 1259f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool generating_stub() const { return generating_stub_; } 1260f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#if DEBUG 1261f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void set_allow_macro_instructions(bool value) { 1262f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org allow_macro_instructions_ = value; 1263f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1264f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool allow_macro_instructions() const { return allow_macro_instructions_; } 1265f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#endif 1266f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool use_real_aborts() const { return use_real_aborts_; } 1267f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void set_has_frame(bool value) { has_frame_ = value; } 1268f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool has_frame() const { return has_frame_; } 1269f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool AllowThisStubCall(CodeStub* stub); 1270f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1271f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org class NoUseRealAbortsScope { 1272f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org public: 1273f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org explicit NoUseRealAbortsScope(MacroAssembler* masm) : 1274f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org saved_(masm->use_real_aborts_), masm_(masm) { 1275f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org masm_->use_real_aborts_ = false; 1276f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1277f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ~NoUseRealAbortsScope() { 1278f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org masm_->use_real_aborts_ = saved_; 1279f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1280f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org private: 1281f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool saved_; 1282f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org MacroAssembler* masm_; 1283f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org }; 1284f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1285f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // --------------------------------------------------------------------------- 1286f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Debugger Support 1287f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1288f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void DebugBreak(); 1289865f51ff8c94f86f4c97636d70addc0f29e79674machenbach@chromium.org 1290f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // --------------------------------------------------------------------------- 1291f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Exception handling 1292f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1293f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Push a new try handler and link into try handler chain. 1294f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PushTryHandler(StackHandler::Kind kind, int handler_index); 1295f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1296f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Unlink the stack handler on top of the stack from the try handler chain. 1297f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Must preserve the result register. 1298f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PopTryHandler(); 1299f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1300f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1301f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // --------------------------------------------------------------------------- 1302f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Allocation support 1303f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1304f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Allocate an object in new space or old pointer space. The object_size is 1305f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // specified either in bytes or in words if the allocation flag SIZE_IN_WORDS 1306f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // is passed. The allocated object is returned in result. 1307f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1308f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If the new space is exhausted control continues at the gc_required label. 1309f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // In this case, the result and scratch registers may still be clobbered. 1310f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If flags includes TAG_OBJECT, the result is tagged as as a heap object. 1311f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Allocate(Register object_size, 1312f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register result, 1313f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1314f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1315f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* gc_required, 1316f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org AllocationFlags flags); 1317f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1318f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Allocate(int object_size, 1319f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register result, 1320f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1321f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1322f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* gc_required, 1323f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org AllocationFlags flags); 1324f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1325f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Undo allocation in new space. The object passed and objects allocated after 1326f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // it will no longer be allocated. The caller must make sure that no pointers 1327f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // are left to the object(s) no longer allocated as they would be invalid when 1328f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // allocation is undone. 1329f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void UndoAllocationInNewSpace(Register object, Register scratch); 1330f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1331f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AllocateTwoByteString(Register result, 1332f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register length, 1333f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1334f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1335f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch3, 1336f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* gc_required); 1337f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AllocateAsciiString(Register result, 1338f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register length, 1339f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1340f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1341f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch3, 1342f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* gc_required); 1343f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AllocateTwoByteConsString(Register result, 1344f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register length, 1345f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1346f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1347f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* gc_required); 1348f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AllocateAsciiConsString(Register result, 1349f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register length, 1350f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1351f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1352f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* gc_required); 1353f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AllocateTwoByteSlicedString(Register result, 1354f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register length, 1355f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1356f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1357f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* gc_required); 1358f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AllocateAsciiSlicedString(Register result, 1359f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register length, 1360f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1361f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1362f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* gc_required); 1363f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1364f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Allocates a heap number or jumps to the gc_required label if the young 1365f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // space is full and a scavenge is needed. 1366f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // All registers are clobbered. 1367f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If no heap_number_map register is provided, the function will take care of 1368f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // loading it. 1369f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AllocateHeapNumber(Register result, 1370f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* gc_required, 1371f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1372f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 137363a7c9f848e755c52a37721debae242cf5d1682dmachenbach@chromium.org CPURegister value = NoFPReg, 137463a7c9f848e755c52a37721debae242cf5d1682dmachenbach@chromium.org CPURegister heap_number_map = NoReg); 1375f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1376f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // --------------------------------------------------------------------------- 1377f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Support functions. 1378f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1379f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Try to get function prototype of a function and puts the value in the 1380f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // result register. Checks that the function really is a function and jumps 1381f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // to the miss label if the fast checks fail. The function register will be 1382f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // untouched; the other registers may be clobbered. 1383f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org enum BoundFunctionAction { 1384f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org kMissOnBoundFunction, 1385f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org kDontMissOnBoundFunction 1386f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org }; 1387f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1388f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TryGetFunctionPrototype(Register function, 1389f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register result, 1390f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1391f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* miss, 1392f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org BoundFunctionAction action = 1393f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org kDontMissOnBoundFunction); 1394f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1395f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compare object type for heap object. heap_object contains a non-Smi 1396f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // whose object type should be compared with the given type. This both 1397f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // sets the flags and leaves the object type in the type_reg register. 1398f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // It leaves the map in the map register (unless the type_reg and map register 1399f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // are the same register). It leaves the heap object in the heap_object 1400f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // register unless the heap_object register is the same register as one of the 1401f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // other registers. 1402f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CompareObjectType(Register heap_object, 1403f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register map, 1404f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register type_reg, 1405f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InstanceType type); 1406f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1407f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1408f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compare object type for heap object, and branch if equal (or not.) 1409f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // heap_object contains a non-Smi whose object type should be compared with 1410f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the given type. This both sets the flags and leaves the object type in 1411f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the type_reg register. It leaves the map in the map register (unless the 1412f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // type_reg and map register are the same register). It leaves the heap 1413f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // object in the heap_object register unless the heap_object register is the 1414f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // same register as one of the other registers. 1415f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfObjectType(Register object, 1416f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register map, 1417f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register type_reg, 1418f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InstanceType type, 1419f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_cond_pass, 1420f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond = eq); 1421f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1422f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfNotObjectType(Register object, 1423f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register map, 1424f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register type_reg, 1425f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InstanceType type, 1426f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_not_object); 1427f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1428f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compare instance type in a map. map contains a valid map object whose 1429f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // object type should be compared with the given type. This both 1430f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // sets the flags and leaves the object type in the type_reg register. 1431f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CompareInstanceType(Register map, 1432f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register type_reg, 1433f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InstanceType type); 1434f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1435f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compare an object's map with the specified map. Condition flags are set 1436f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // with result of map compare. 1437f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CompareMap(Register obj, 1438f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1439f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Handle<Map> map); 1440f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1441f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // As above, but the map of the object is already loaded into the register 1442f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // which is preserved by the code generated. 1443f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CompareMap(Register obj_map, 1444f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Handle<Map> map); 1445f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1446f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Check if the map of an object is equal to a specified map and branch to 1447f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // label if not. Skip the smi check if not required (object is known to be a 1448f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // heap object). If mode is ALLOW_ELEMENT_TRANSITION_MAPS, then also match 1449f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // against maps that are ElementsKind transition maps of the specified map. 1450f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CheckMap(Register obj, 1451f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1452f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Handle<Map> map, 1453f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* fail, 1454f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SmiCheckType smi_check_type); 1455f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1456f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1457f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CheckMap(Register obj, 1458f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1459f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Heap::RootListIndex index, 1460f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* fail, 1461f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SmiCheckType smi_check_type); 1462f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1463f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // As above, but the map of the object is already loaded into obj_map, and is 1464f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // preserved. 1465f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CheckMap(Register obj_map, 1466f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Handle<Map> map, 1467f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* fail, 1468f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SmiCheckType smi_check_type); 1469f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1470f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Check if the map of an object is equal to a specified map and branch to a 1471f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // specified target if equal. Skip the smi check if not required (object is 1472f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // known to be a heap object) 1473f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void DispatchMap(Register obj, 1474f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1475f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Handle<Map> map, 1476f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Handle<Code> success, 1477f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SmiCheckType smi_check_type); 1478f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1479f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Test the bitfield of the heap object map with mask and set the condition 1480f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // flags. The object register is preserved. 1481f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TestMapBitfield(Register object, uint64_t mask); 1482f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 14839801e3c558f3df82f01ac626b6171032afa33819machenbach@chromium.org // Load the elements kind field from a map, and return it in the result 1484f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // register. 14859801e3c558f3df82f01ac626b6171032afa33819machenbach@chromium.org void LoadElementsKindFromMap(Register result, Register map); 1486f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1487f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compare the object in a register to a value from the root list. 1488f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CompareRoot(const Register& obj, Heap::RootListIndex index); 1489f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1490f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compare the object in a register to a value and jump if they are equal. 1491f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfRoot(const Register& obj, 1492f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Heap::RootListIndex index, 1493f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_equal); 1494f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1495f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compare the object in a register to a value and jump if they are not equal. 1496f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfNotRoot(const Register& obj, 1497f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Heap::RootListIndex index, 1498f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_not_equal); 1499f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1500f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Load and check the instance type of an object for being a unique name. 1501f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Loads the type into the second argument register. 1502f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The object and type arguments can be the same register; in that case it 1503f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // will be overwritten with the type. 1504f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Fall-through if the object was a string and jump on fail otherwise. 1505f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void IsObjectNameType(Register object, Register type, Label* fail); 1506f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1507f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void IsObjectJSObjectType(Register heap_object, 1508f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register map, 1509f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1510f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* fail); 1511f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1512f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Check the instance type in the given map to see if it corresponds to a 1513f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // JS object type. Jump to the fail label if this is not the case and fall 1514f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // through otherwise. However if fail label is NULL, no branch will be 1515f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // performed and the flag will be updated. You can test the flag for "le" 1516f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // condition to test if it is a valid JS object type. 1517f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void IsInstanceJSObjectType(Register map, 1518f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1519f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* fail); 1520f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1521f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Load and check the instance type of an object for being a string. 1522f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Loads the type into the second argument register. 1523f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The object and type arguments can be the same register; in that case it 1524f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // will be overwritten with the type. 1525f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Jumps to not_string or string appropriate. If the appropriate label is 1526f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // NULL, fall through. 1527f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void IsObjectJSStringType(Register object, Register type, 1528f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* not_string, Label* string = NULL); 1529f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1530f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Compare the contents of a register with an operand, and branch to true, 1531f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // false or fall through, depending on condition. 1532f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CompareAndSplit(const Register& lhs, 1533f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Operand& rhs, 1534f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond, 1535f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_true, 1536f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_false, 1537f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* fall_through); 1538f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1539f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Test the bits of register defined by bit_pattern, and branch to 1540f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // if_any_set, if_all_clear or fall_through accordingly. 1541f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TestAndSplit(const Register& reg, 1542f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org uint64_t bit_pattern, 1543f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_all_clear, 1544f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_any_set, 1545f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* fall_through); 1546f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1547f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Check if a map for a JSObject indicates that the object has fast elements. 1548f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Jump to the specified label if it does not. 15499801e3c558f3df82f01ac626b6171032afa33819machenbach@chromium.org void CheckFastElements(Register map, Register scratch, Label* fail); 1550f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1551f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Check if a map for a JSObject indicates that the object can have both smi 1552f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // and HeapObject elements. Jump to the specified label if it does not. 15539801e3c558f3df82f01ac626b6171032afa33819machenbach@chromium.org void CheckFastObjectElements(Register map, Register scratch, Label* fail); 1554f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1555f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Check to see if number can be stored as a double in FastDoubleElements. 1556f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If it can, store it at the index specified by key_reg in the array, 1557f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // otherwise jump to fail. 1558f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void StoreNumberToDoubleElements(Register value_reg, 1559f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register key_reg, 1560f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register elements_reg, 1561f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1562f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org FPRegister fpscratch1, 1563f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* fail, 1564f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int elements_offset = 0); 1565f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1566f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Picks out an array index from the hash field. 1567f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Register use: 1568f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // hash - holds the index's hash. Clobbered. 1569f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // index - holds the overwritten index on exit. 1570f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void IndexFromHash(Register hash, Register index); 1571f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1572f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // --------------------------------------------------------------------------- 1573f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Inline caching support. 1574f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1575f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void EmitSeqStringSetCharCheck(Register string, 1576f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register index, 1577f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SeqStringSetCharCheckIndexType index_type, 1578f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1579f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org uint32_t encoding_mask); 1580f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1581f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Generate code for checking access rights - used for security checks 1582f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // on access to global objects across environments. The holder register 1583f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // is left untouched, whereas both scratch registers are clobbered. 1584f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CheckAccessGlobalProxy(Register holder_reg, 1585bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch1, 1586bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch2, 1587f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* miss); 1588f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1589f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Hash the interger value in 'key' register. 1590f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // It uses the same algorithm as ComputeIntegerHash in utils.h. 1591f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void GetNumberHash(Register key, Register scratch); 1592f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1593f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Load value from the dictionary. 1594f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1595f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // elements - holds the slow-case elements of the receiver on entry. 1596f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Unchanged unless 'result' is the same register. 1597f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1598f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // key - holds the smi key on entry. 1599f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Unchanged unless 'result' is the same register. 1600f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1601f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // result - holds the result on exit if the load succeeded. 1602f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Allowed to be the same as 'key' or 'result'. 1603f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Unchanged on bailout so 'key' or 'result' can be used 1604f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // in further computation. 1605f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadFromNumberDictionary(Label* miss, 1606f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register elements, 1607f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register key, 1608f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register result, 1609f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch0, 1610f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1611f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1612f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch3); 1613f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1614f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // --------------------------------------------------------------------------- 1615f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Frames. 1616f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1617f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Activation support. 1618f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void EnterFrame(StackFrame::Type type); 1619f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LeaveFrame(StackFrame::Type type); 1620f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1621f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Returns map with validated enum cache in object register. 1622f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CheckEnumCache(Register object, 1623f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register null_value, 1624f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch0, 1625f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1626f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1627f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch3, 1628f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* call_runtime); 1629f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1630f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // AllocationMemento support. Arrays may have an associated 1631f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // AllocationMemento object that can be checked for in order to pretransition 1632f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // to another type. 1633f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // On entry, receiver should point to the array object. 1634f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If allocation info is present, the Z flag is set (so that the eq 1635f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // condition will pass). 1636f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void TestJSArrayForAllocationMemento(Register receiver, 1637f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1638f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1639f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* no_memento_found); 1640f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1641f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfJSArrayHasAllocationMemento(Register receiver, 1642f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1643f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1644f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* memento_found) { 1645f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label no_memento_found; 1646f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org TestJSArrayForAllocationMemento(receiver, scratch1, scratch2, 1647f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org &no_memento_found); 1648f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org B(eq, memento_found); 1649f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Bind(&no_memento_found); 1650f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1651f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1652f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The stack pointer has to switch between csp and jssp when setting up and 1653f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // destroying the exit frame. Hence preserving/restoring the registers is 1654f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // slightly more complicated than simple push/pop operations. 1655f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void ExitFramePreserveFPRegs(); 1656f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void ExitFrameRestoreFPRegs(); 1657f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1658f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Generates function and stub prologue code. 1659285f85a5a149f36516a20200a76899651dd95fb6machenbach@chromium.org void StubPrologue(); 1660285f85a5a149f36516a20200a76899651dd95fb6machenbach@chromium.org void Prologue(bool code_pre_aging); 1661f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1662f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Enter exit frame. Exit frames are used when calling C code from generated 1663f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // (JavaScript) code. 1664f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1665f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The stack pointer must be jssp on entry, and will be set to csp by this 1666f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // function. The frame pointer is also configured, but the only other 1667f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // registers modified by this function are the provided scratch register, and 1668f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // jssp. 1669f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1670f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The 'extra_space' argument can be used to allocate some space in the exit 1671f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // frame that will be ignored by the GC. This space will be reserved in the 1672f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // bottom of the frame immediately above the return address slot. 1673f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1674f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Set up a stack frame and registers as follows: 1675f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // fp[8]: CallerPC (lr) 1676f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // fp -> fp[0]: CallerFP (old fp) 1677f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // fp[-8]: SPOffset (new csp) 1678f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // fp[-16]: CodeObject() 1679f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // fp[-16 - fp-size]: Saved doubles, if saved_doubles is true. 1680f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // csp[8]: Memory reserved for the caller if extra_space != 0. 1681f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Alignment padding, if necessary. 1682f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // csp -> csp[0]: Space reserved for the return address. 1683f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1684f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This function also stores the new frame information in the top frame, so 1685f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // that the new frame becomes the current frame. 1686f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void EnterExitFrame(bool save_doubles, 1687f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& scratch, 1688f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int extra_space = 0); 1689f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1690f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Leave the current exit frame, after a C function has returned to generated 1691f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // (JavaScript) code. 1692f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1693f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This effectively unwinds the operation of EnterExitFrame: 1694f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // * Preserved doubles are restored (if restore_doubles is true). 1695f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // * The frame information is removed from the top frame. 1696f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // * The exit frame is dropped. 1697f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // * The stack pointer is reset to jssp. 1698f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1699f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The stack pointer must be csp on entry. 1700f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LeaveExitFrame(bool save_doubles, 1701f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& scratch, 1702f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool restore_context); 1703f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1704f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadContext(Register dst, int context_chain_length); 1705f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1706763da4c1a1bd42dfafe0844b4c18f4882cc66352machenbach@chromium.org // Emit code for a truncating division by a constant. The dividend register is 1707bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org // unchanged. Dividend and result must be different. 1708763da4c1a1bd42dfafe0844b4c18f4882cc66352machenbach@chromium.org void TruncatingDiv(Register result, Register dividend, int32_t divisor); 1709bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 1710f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // --------------------------------------------------------------------------- 1711f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // StatsCounter support 1712f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1713f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void SetCounter(StatsCounter* counter, int value, Register scratch1, 1714f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2); 1715f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void IncrementCounter(StatsCounter* counter, int value, Register scratch1, 1716f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2); 1717f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void DecrementCounter(StatsCounter* counter, int value, Register scratch1, 1718f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2); 1719f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1720f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // --------------------------------------------------------------------------- 1721f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Garbage collector support (GC). 1722f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1723f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org enum RememberedSetFinalAction { 1724f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org kReturnAtEnd, 1725f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org kFallThroughAtEnd 1726f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org }; 1727f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1728f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Record in the remembered set the fact that we have a pointer to new space 1729f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // at the address pointed to by the addr register. Only works if addr is not 1730f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // in new space. 1731f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void RememberedSetHelper(Register object, // Used for debug code. 1732f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register addr, 1733bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch1, 1734f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SaveFPRegsMode save_fp, 1735f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org RememberedSetFinalAction and_then); 1736f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1737f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Push and pop the registers that can hold pointers, as defined by the 1738f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // RegList constant kSafepointSavedRegisters. 1739f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PushSafepointRegisters(); 1740f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PopSafepointRegisters(); 1741f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1742a221880197f38ff22d942851060daffa5d036bdfmachenbach@chromium.org void PushSafepointRegistersAndDoubles(); 1743a221880197f38ff22d942851060daffa5d036bdfmachenbach@chromium.org void PopSafepointRegistersAndDoubles(); 1744f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1745f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Store value in register src in the safepoint stack slot for register dst. 1746f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void StoreToSafepointRegisterSlot(Register src, Register dst) { 1747f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Poke(src, SafepointRegisterStackIndex(dst.code()) * kPointerSize); 1748f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1749f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1750f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Load the value of the src register from its safepoint stack slot 1751f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // into register dst. 1752f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadFromSafepointRegisterSlot(Register dst, Register src) { 1753f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Peek(src, SafepointRegisterStackIndex(dst.code()) * kPointerSize); 1754f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1755f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1756f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CheckPageFlagSet(const Register& object, 1757f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& scratch, 1758f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int mask, 1759f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_any_set); 1760f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1761f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CheckPageFlagClear(const Register& object, 1762f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& scratch, 1763f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int mask, 1764f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_all_clear); 1765f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1766f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CheckMapDeprecated(Handle<Map> map, 1767f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1768f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* if_deprecated); 1769f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1770f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Check if object is in new space and jump accordingly. 1771f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Register 'object' is preserved. 1772f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfNotInNewSpace(Register object, 1773f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* branch) { 1774f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InNewSpace(object, ne, branch); 1775f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1776f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1777f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfInNewSpace(Register object, 1778f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* branch) { 1779f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InNewSpace(object, eq, branch); 1780f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1781f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1782f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Notify the garbage collector that we wrote a pointer into an object. 1783f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // |object| is the object being stored into, |value| is the object being 1784f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // stored. value and scratch registers are clobbered by the operation. 1785f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The offset is the offset from the start of the object, not the offset from 1786f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the tagged HeapObject pointer. For use with FieldOperand(reg, off). 1787f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void RecordWriteField( 1788f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register object, 1789f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int offset, 1790f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register value, 1791f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1792f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org LinkRegisterStatus lr_status, 1793f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SaveFPRegsMode save_fp, 1794f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, 1795196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org SmiCheck smi_check = INLINE_SMI_CHECK, 1796196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org PointersToHereCheck pointers_to_here_check_for_value = 1797196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org kPointersToHereMaybeInteresting); 1798f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1799f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // As above, but the offset has the tag presubtracted. For use with 1800f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // MemOperand(reg, off). 1801f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void RecordWriteContextSlot( 1802f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register context, 1803f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int offset, 1804f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register value, 1805f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1806f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org LinkRegisterStatus lr_status, 1807f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SaveFPRegsMode save_fp, 1808f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, 1809196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org SmiCheck smi_check = INLINE_SMI_CHECK, 1810196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org PointersToHereCheck pointers_to_here_check_for_value = 1811196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org kPointersToHereMaybeInteresting) { 1812f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org RecordWriteField(context, 1813f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org offset + kHeapObjectTag, 1814f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org value, 1815f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org scratch, 1816f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org lr_status, 1817f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org save_fp, 1818f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org remembered_set_action, 1819196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org smi_check, 1820196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org pointers_to_here_check_for_value); 1821f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 1822f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1823196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org void RecordWriteForMap( 1824196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org Register object, 1825196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org Register map, 1826196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org Register dst, 1827196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org LinkRegisterStatus lr_status, 1828196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org SaveFPRegsMode save_fp); 1829196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org 1830f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // For a given |object| notify the garbage collector that the slot |address| 1831f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // has been written. |value| is the object being stored. The value and 1832f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // address registers are clobbered by the operation. 1833f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void RecordWrite( 1834f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register object, 1835f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register address, 1836f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register value, 1837f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org LinkRegisterStatus lr_status, 1838f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org SaveFPRegsMode save_fp, 1839f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, 1840196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org SmiCheck smi_check = INLINE_SMI_CHECK, 1841196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org PointersToHereCheck pointers_to_here_check_for_value = 1842196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org kPointersToHereMaybeInteresting); 1843f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1844f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Checks the color of an object. If the object is already grey or black 1845f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // then we just fall through, since it is already live. If it is white and 1846f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // we can determine that it doesn't need to be scanned, then we just mark it 1847f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // black and fall through. For the rest we jump to the label so the 1848f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // incremental marker can fix its assumptions. 1849f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void EnsureNotWhite(Register object, 1850f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1851f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2, 1852f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch3, 1853f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch4, 1854f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* object_is_white_and_not_data); 1855f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1856f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Detects conservatively whether an object is data-only, i.e. it does need to 1857f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // be scanned by the garbage collector. 1858f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfDataObject(Register value, 1859f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch, 1860f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* not_data_object); 1861f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1862f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Helper for finding the mark bits for an address. 1863f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Note that the behaviour slightly differs from other architectures. 1864f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // On exit: 1865f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // - addr_reg is unchanged. 1866f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // - The bitmap register points at the word with the mark bits. 1867f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // - The shift register contains the index of the first color bit for this 1868f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // object in the bitmap. 1869f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org inline void GetMarkBits(Register addr_reg, 1870f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register bitmap_reg, 1871f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register shift_reg); 1872f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1873f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Check if an object has a given incremental marking color. 1874f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void HasColor(Register object, 1875f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch0, 1876f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1877f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* has_color, 1878f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int first_bit, 1879f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org int second_bit); 1880f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1881f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfBlack(Register object, 1882f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch0, 1883f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 1884f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* on_black); 1885f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1886f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1887f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Get the location of a relocated constant (its address in the constant pool) 1888f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // from its load site. 1889f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void GetRelocatedValueLocation(Register ldr_location, 1890f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register result); 1891f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1892f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1893f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // --------------------------------------------------------------------------- 1894f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Debugging. 1895f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1896f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Calls Abort(msg) if the condition cond is not satisfied. 1897f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Use --debug_code to enable. 1898f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Assert(Condition cond, BailoutReason reason); 1899f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertRegisterIsClear(Register reg, BailoutReason reason); 1900f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertRegisterIsRoot( 1901f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register reg, 1902f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Heap::RootListIndex index, 1903f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org BailoutReason reason = kRegisterDidNotMatchExpectedRoot); 1904f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertFastElements(Register elements); 1905f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1906f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Abort if the specified register contains the invalid color bit pattern. 1907f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The pattern must be in bits [1:0] of 'reg' register. 1908f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1909f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If emit_debug_code() is false, this emits no code. 1910f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertHasValidColor(const Register& reg); 1911f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1912f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Abort if 'object' register doesn't point to a string object. 1913f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1914f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If emit_debug_code() is false, this emits no code. 1915f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void AssertIsString(const Register& object); 1916f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1917f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Like Assert(), but always enabled. 1918f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Check(Condition cond, BailoutReason reason); 1919f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CheckRegisterIsClear(Register reg, BailoutReason reason); 1920f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1921f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Print a message to stderr and abort execution. 1922f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Abort(BailoutReason reason); 1923f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1924f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Conditionally load the cached Array transitioned map of type 1925f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // transitioned_kind from the native context if the map in register 1926f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // map_in_out is the cached Array map in the native context of 1927f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // expected_kind. 1928f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadTransitionedArrayMapConditional( 1929f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ElementsKind expected_kind, 1930f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ElementsKind transitioned_kind, 1931f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register map_in_out, 1932bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch1, 1933bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch2, 1934f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* no_map_match); 1935f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1936f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadGlobalFunction(int index, Register function); 1937f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1938f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Load the initial map from the global function. The registers function and 1939f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // map can be the same, function is then overwritten. 1940f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void LoadGlobalFunctionInitialMap(Register function, 1941f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register map, 1942f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch); 1943f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1944bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org CPURegList* TmpList() { return &tmp_list_; } 1945bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org CPURegList* FPTmpList() { return &fptmp_list_; } 1946f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1947202b1d8cd93e567672cc92f48fedc35989c47312machenbach@chromium.org static CPURegList DefaultTmpList(); 1948202b1d8cd93e567672cc92f48fedc35989c47312machenbach@chromium.org static CPURegList DefaultFPTmpList(); 1949202b1d8cd93e567672cc92f48fedc35989c47312machenbach@chromium.org 1950f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Like printf, but print at run-time from generated code. 1951f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1952f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The caller must ensure that arguments for floating-point placeholders 1953f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // (such as %e, %f or %g) are FPRegisters, and that arguments for integer 1954f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // placeholders are Registers. 1955f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1956a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org // At the moment it is only possible to print the value of csp if it is the 1957a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org // current stack pointer. Otherwise, the MacroAssembler will automatically 1958a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org // update csp on every push (using BumpSystemStackPointer), so determining its 1959a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org // value is difficult. 1960f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1961a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org // Format placeholders that refer to more than one argument, or to a specific 1962a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org // argument, are not supported. This includes formats like "%1$d" or "%.*d". 1963f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1964f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This function automatically preserves caller-saved registers so that 1965f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // calling code can use Printf at any point without having to worry about 1966f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // corruption. The preservation mechanism generates a lot of code. If this is 1967f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // a problem, preserve the important registers manually and then call 1968f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // PrintfNoPreserve. Callee-saved registers are not used by Printf, and are 1969f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // implicitly preserved. 1970f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void Printf(const char * format, 1971a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org CPURegister arg0 = NoCPUReg, 1972a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org CPURegister arg1 = NoCPUReg, 1973a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org CPURegister arg2 = NoCPUReg, 1974a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org CPURegister arg3 = NoCPUReg); 1975f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1976f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Like Printf, but don't preserve any caller-saved registers, not even 'lr'. 1977f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 1978f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The return code from the system printf call will be returned in x0. 1979f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PrintfNoPreserve(const char * format, 1980f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& arg0 = NoCPUReg, 1981f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& arg1 = NoCPUReg, 1982f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& arg2 = NoCPUReg, 1983f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& arg3 = NoCPUReg); 1984f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1985f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Code ageing support functions. 1986f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1987fa0c3c69b9d632e5730bdd9c745c375beef5e54dmachenbach@chromium.org // Code ageing on ARM64 works similarly to on ARM. When V8 wants to mark a 1988f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // function as old, it replaces some of the function prologue (generated by 1989f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // FullCodeGenerator::Generate) with a call to a special stub (ultimately 1990f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // generated by GenerateMakeCodeYoungAgainCommon). The stub restores the 1991f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // function prologue to its initial young state (indicating that it has been 1992f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // recently run) and continues. A young function is therefore one which has a 1993f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // normal frame setup sequence, and an old function has a code age sequence 1994f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // which calls a code ageing stub. 1995f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 1996f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Set up a basic stack frame for young code (or code exempt from ageing) with 1997f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // type FUNCTION. It may be patched later for code ageing support. This is 1998f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // done by to Code::PatchPlatformCodeAge and EmitCodeAgeSequence. 1999f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2000f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This function takes an Assembler so it can be called from either a 2001f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // MacroAssembler or a PatchingAssembler context. 2002f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static void EmitFrameSetupForCodeAgePatching(Assembler* assm); 2003f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2004f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Call EmitFrameSetupForCodeAgePatching from a MacroAssembler context. 2005f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void EmitFrameSetupForCodeAgePatching(); 2006f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2007f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Emit a code age sequence that calls the relevant code age stub. The code 2008f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // generated by this sequence is expected to replace the code generated by 2009f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // EmitFrameSetupForCodeAgePatching, and represents an old function. 2010f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2011f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If stub is NULL, this function generates the code age sequence but omits 2012f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // the stub address that is normally embedded in the instruction stream. This 2013f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // can be used by debug code to verify code age sequences. 2014f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static void EmitCodeAgeSequence(Assembler* assm, Code* stub); 2015f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2016f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Call EmitCodeAgeSequence from a MacroAssembler context. 2017f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void EmitCodeAgeSequence(Code* stub); 2018f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2019f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Return true if the sequence is a young sequence geneated by 2020f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // EmitFrameSetupForCodeAgePatching. Otherwise, this method asserts that the 2021f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // sequence is a code age sequence (emitted by EmitCodeAgeSequence). 20225924917d324a643d00a8aefee030bd4acea0de0bmachenbach@chromium.org static bool IsYoungSequence(Isolate* isolate, byte* sequence); 2023f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2024f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Jumps to found label if a prototype map has dictionary elements. 2025f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpIfDictionaryInPrototypeChain(Register object, Register scratch0, 2026f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, Label* found); 2027f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2028011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org // Perform necessary maintenance operations before a push or after a pop. 2029011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org // 2030011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org // Note that size is specified in bytes. 2031011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org void PushPreamble(Operand total_size); 2032011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org void PopPostamble(Operand total_size); 2033011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org 2034011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org void PushPreamble(int count, int size) { PushPreamble(count * size); } 2035011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org void PopPostamble(int count, int size) { PopPostamble(count * size); } 2036011a81ffd5df0e081e7c00ef430b2fec5079bf2amachenbach@chromium.org 2037f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org private: 2038f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Helpers for CopyFields. 2039f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // These each implement CopyFields in a different way. 2040f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CopyFieldsLoopPairsHelper(Register dst, Register src, unsigned count, 2041f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, Register scratch2, 2042bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch3, Register scratch4, 2043bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch5); 2044f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CopyFieldsUnrolledPairsHelper(Register dst, Register src, unsigned count, 2045bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch1, Register scratch2, 2046bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch3, Register scratch4); 2047f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void CopyFieldsUnrolledHelper(Register dst, Register src, unsigned count, 2048bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch1, Register scratch2, 2049bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register scratch3); 2050f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2051f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The actual Push and Pop implementations. These don't generate any code 2052f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // other than that required for the push or pop. This allows 2053f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // (Push|Pop)CPURegList to bundle together run-time assertions for a large 2054f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // block of registers. 2055f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2056f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Note that size is per register, and is specified in bytes. 2057f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PushHelper(int count, int size, 2058f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& src0, const CPURegister& src1, 2059f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& src2, const CPURegister& src3); 2060f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void PopHelper(int count, int size, 2061f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& dst0, const CPURegister& dst1, 2062f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const CPURegister& dst2, const CPURegister& dst3); 2063f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2064f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Call Printf. On a native build, a simple call will be generated, but if the 2065f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // simulator is being used then a suitable pseudo-instruction is used. The 2066f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // arguments and stack (csp) must be prepared by the caller as for a normal 2067f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // AAPCS64 call to 'printf'. 2068f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2069a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org // The 'args' argument should point to an array of variable arguments in their 2070a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org // proper PCS registers (and in calling order). The argument registers can 2071a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org // have mixed types. The format string (x0) should not be included. 2072a3b66334e4dd35d9d4874d275ef9c4a756f0225cmachenbach@chromium.org void CallPrintf(int arg_count = 0, const CPURegister * args = NULL); 2073f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2074f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Helper for throwing exceptions. Compute a handler address and jump to 2075f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // it. See the implementation for register usage. 2076f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void JumpToHandlerEntry(Register exception, 2077f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register object, 2078f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register state, 2079f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 2080f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2); 2081f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2082f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Helper for implementing JumpIfNotInNewSpace and JumpIfInNewSpace. 2083f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void InNewSpace(Register object, 2084f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Condition cond, // eq for new space, ne otherwise. 2085f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label* branch); 2086f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 20873484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org // Try to represent a double as an int so that integer fast-paths may be 2088f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // used. Not every valid integer value is guaranteed to be caught. 2089f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // It supports both 32-bit and 64-bit integers depending whether 'as_int' 2090f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // is a W or X register. 2091f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2092f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This does not distinguish between +0 and -0, so if this distinction is 2093f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // important it must be checked separately. 20942904d1a42292be3056c2dd3f98822f8e1470fa72machenbach@chromium.org // 20953484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org // On output the Z flag is set if the operation was successful. 20963484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org void TryRepresentDoubleAsInt(Register as_int, 20973484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org FPRegister value, 20983484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org FPRegister scratch_d, 20993484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org Label* on_successful_conversion = NULL, 21003484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org Label* on_failed_conversion = NULL); 2101f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2102f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool generating_stub_; 2103f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#if DEBUG 2104f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Tell whether any of the macro instruction can be used. When false the 2105f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // MacroAssembler will assert if a method which can emit a variable number 2106f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // of instructions is called. 2107f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool allow_macro_instructions_; 2108f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#endif 2109f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool has_frame_; 2110f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2111f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The Abort method should call a V8 runtime function, but the CallRuntime 2112f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // mechanism depends on CEntryStub. If use_real_aborts is false, Abort will 2113f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // use a simpler abort mechanism that doesn't depend on CEntryStub. 2114f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2115f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The purpose of this is to allow Aborts to be compiled whilst CEntryStub is 2116f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // being generated. 2117f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool use_real_aborts_; 2118f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2119f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This handle will be patched with the code object on installation. 2120f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Handle<Object> code_object_; 2121f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2122f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The register to use as a stack pointer for stack operations. 2123f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register sp_; 2124f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2125bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org // Scratch registers available for use by the MacroAssembler. 2126bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org CPURegList tmp_list_; 2127bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org CPURegList fptmp_list_; 2128f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2129f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org void InitializeNewString(Register string, 2130f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register length, 2131f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Heap::RootListIndex map_index, 2132f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch1, 2133f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register scratch2); 2134f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2135f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org public: 2136f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Far branches resolving. 2137f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2138f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The various classes of branch instructions with immediate offsets have 2139f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // different ranges. While the Assembler will fail to assemble a branch 2140f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // exceeding its range, the MacroAssembler offers a mechanism to resolve 2141f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // branches to too distant targets, either by tweaking the generated code to 2142f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // use branch instructions with wider ranges or generating veneers. 2143f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2144f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Currently branches to distant targets are resolved using unconditional 2145f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // branch isntructions with a range of +-128MB. If that becomes too little 2146f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // (!), the mechanism can be extended to generate special veneers for really 2147f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // far targets. 2148f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2149f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Helps resolve branching to labels potentially out of range. 2150f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If the label is not bound, it registers the information necessary to later 2151f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // be able to emit a veneer for this branch if necessary. 2152f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // If the label is bound, it returns true if the label (or the previous link 2153f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // in the label chain) is out of range. In that case the caller is responsible 2154f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // for generating appropriate code. 2155f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Otherwise it returns false. 2156f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // This function also checks wether veneers need to be emitted. 2157f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool NeedExtraInstructionsOrRegisterBranch(Label *label, 2158f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ImmBranchType branch_type); 2159f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org}; 2160f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2161f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2162f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// Use this scope when you need a one-to-one mapping bewteen methods and 2163f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// instructions. This scope prevents the MacroAssembler from being called and 2164f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// literal pools from being emitted. It also asserts the number of instructions 2165f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// emitted is what you specified when creating the scope. 2166f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgclass InstructionAccurateScope BASE_EMBEDDED { 2167f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org public: 2168f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org InstructionAccurateScope(MacroAssembler* masm, size_t count = 0) 2169f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org : masm_(masm) 2170f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#ifdef DEBUG 2171f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org , 2172f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org size_(count * kInstructionSize) 2173f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#endif 2174f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org { 2175f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Before blocking the const pool, see if it needs to be emitted. 2176f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org masm_->CheckConstPool(false, true); 21779b95fd75bfb24acf6b51a360058331013e74fc73machenbach@chromium.org masm_->CheckVeneerPool(false, true); 2178f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 21799b95fd75bfb24acf6b51a360058331013e74fc73machenbach@chromium.org masm_->StartBlockPools(); 2180f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#ifdef DEBUG 2181f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org if (count != 0) { 2182f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org masm_->bind(&start_); 2183f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 2184f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org previous_allow_macro_instructions_ = masm_->allow_macro_instructions(); 2185f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org masm_->set_allow_macro_instructions(false); 2186f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#endif 2187f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 2188f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2189f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ~InstructionAccurateScope() { 21909b95fd75bfb24acf6b51a360058331013e74fc73machenbach@chromium.org masm_->EndBlockPools(); 2191f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#ifdef DEBUG 2192f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org if (start_.is_bound()) { 2193f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org ASSERT(masm_->SizeOfCodeGeneratedSince(&start_) == size_); 2194f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 2195f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org masm_->set_allow_macro_instructions(previous_allow_macro_instructions_); 2196f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#endif 2197f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 2198f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2199f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org private: 2200f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org MacroAssembler* masm_; 2201f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#ifdef DEBUG 2202f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org size_t size_; 2203f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label start_; 2204f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool previous_allow_macro_instructions_; 2205f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#endif 2206f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org}; 2207f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2208f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2209bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org// This scope utility allows scratch registers to be managed safely. The 2210bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org// MacroAssembler's TmpList() (and FPTmpList()) is used as a pool of scratch 2211bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org// registers. These registers can be allocated on demand, and will be returned 2212bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org// at the end of the scope. 2213bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org// 2214bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org// When the scope ends, the MacroAssembler's lists will be restored to their 2215bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org// original state, even if the lists were modified by some other means. 2216bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.orgclass UseScratchRegisterScope { 2217bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org public: 2218bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org explicit UseScratchRegisterScope(MacroAssembler* masm) 2219bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org : available_(masm->TmpList()), 2220bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org availablefp_(masm->FPTmpList()), 2221bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org old_available_(available_->list()), 2222bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org old_availablefp_(availablefp_->list()) { 2223bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org ASSERT(available_->type() == CPURegister::kRegister); 2224bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org ASSERT(availablefp_->type() == CPURegister::kFPRegister); 2225bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org } 2226bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 2227bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org ~UseScratchRegisterScope(); 2228bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 2229bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org // Take a register from the appropriate temps list. It will be returned 2230bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org // automatically when the scope ends. 2231bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register AcquireW() { return AcquireNextAvailable(available_).W(); } 2232bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register AcquireX() { return AcquireNextAvailable(available_).X(); } 2233bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org FPRegister AcquireS() { return AcquireNextAvailable(availablefp_).S(); } 2234bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org FPRegister AcquireD() { return AcquireNextAvailable(availablefp_).D(); } 2235bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 2236a221880197f38ff22d942851060daffa5d036bdfmachenbach@chromium.org Register UnsafeAcquire(const Register& reg) { 2237a221880197f38ff22d942851060daffa5d036bdfmachenbach@chromium.org return Register(UnsafeAcquire(available_, reg)); 2238a221880197f38ff22d942851060daffa5d036bdfmachenbach@chromium.org } 2239a221880197f38ff22d942851060daffa5d036bdfmachenbach@chromium.org 2240bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org Register AcquireSameSizeAs(const Register& reg); 2241bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org FPRegister AcquireSameSizeAs(const FPRegister& reg); 2242bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 2243bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org private: 2244bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org static CPURegister AcquireNextAvailable(CPURegList* available); 2245a221880197f38ff22d942851060daffa5d036bdfmachenbach@chromium.org static CPURegister UnsafeAcquire(CPURegList* available, 2246a221880197f38ff22d942851060daffa5d036bdfmachenbach@chromium.org const CPURegister& reg); 2247bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 2248bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org // Available scratch registers. 2249bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org CPURegList* available_; // kRegister 2250bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org CPURegList* availablefp_; // kFPRegister 2251bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 2252bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org // The state of the available lists at the start of this scope. 2253bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org RegList old_available_; // kRegister 2254bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org RegList old_availablefp_; // kFPRegister 2255bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org}; 2256bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 2257bcc36723a2ace28fa3b0d7dd0d1de926d313fff9machenbach@chromium.org 2258f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orginline MemOperand ContextMemOperand(Register context, int index) { 2259f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org return MemOperand(context, Context::SlotOffset(index)); 2260f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org} 2261f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2262f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orginline MemOperand GlobalObjectMemOperand() { 2263f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org return ContextMemOperand(cp, Context::GLOBAL_OBJECT_INDEX); 2264f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org} 2265f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2266f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2267f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org// Encode and decode information about patchable inline SMI checks. 2268f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.orgclass InlineSmiCheckInfo { 2269f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org public: 2270f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org explicit InlineSmiCheckInfo(Address info); 2271f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2272f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org bool HasSmiCheck() const { 2273f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org return smi_check_ != NULL; 2274f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 2275f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2276f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Register& SmiRegister() const { 2277f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org return reg_; 2278f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 2279f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2280f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Instruction* SmiCheck() const { 2281f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org return smi_check_; 2282f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 2283f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2284f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Use MacroAssembler::InlineData to emit information about patchable inline 2285f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // SMI checks. The caller may specify 'reg' as NoReg and an unbound 'site' to 2286f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // indicate that there is no inline SMI check. Note that 'reg' cannot be csp. 2287f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2288f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // The generated patch information can be read using the InlineSMICheckInfo 2289f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // class. 2290f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static void Emit(MacroAssembler* masm, const Register& reg, 2291f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org const Label* smi_check); 2292f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2293f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Emit information to indicate that there is no inline SMI check. 2294f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org static void EmitNotInlined(MacroAssembler* masm) { 2295f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Label unbound; 2296f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Emit(masm, NoReg, &unbound); 2297f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org } 2298f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2299f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org private: 2300f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Register reg_; 2301f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org Instruction* smi_check_; 2302f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2303f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Fields in the data encoded by InlineData. 2304f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2305f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // A width of 5 (Rd_width) for the SMI register preclues the use of csp, 2306f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // since kSPRegInternalCode is 63. However, csp should never hold a SMI or be 2307f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // used in a patchable check. The Emit() method checks this. 2308f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // 2309f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // Note that the total size of the fields is restricted by the underlying 2310f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org // storage size handled by the BitField class, which is a uint32_t. 2311f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org class RegisterBits : public BitField<unsigned, 0, 5> {}; 2312f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org class DeltaBits : public BitField<uint32_t, 5, 32-5> {}; 2313f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org}; 2314f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2315f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org} } // namespace v8::internal 2316f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2317f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#ifdef GENERATED_CODE_COVERAGE 2318f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#error "Unsupported option" 2319f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#define CODE_COVERAGE_STRINGIFY(x) #x 2320f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x) 2321f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) 2322f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> 2323f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#else 2324f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#define ACCESS_MASM(masm) masm-> 2325f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org#endif 2326f5a24546072ecdbbd6372c85c42157e01e913561titzer@chromium.org 2327fa0c3c69b9d632e5730bdd9c745c375beef5e54dmachenbach@chromium.org#endif // V8_ARM64_MACRO_ASSEMBLER_ARM64_H_ 2328