105ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org// Copyright 2012 the V8 project authors. All rights reserved. 25c838251403b0be9a882540f1922577abba4c872ager@chromium.org// Redistribution and use in source and binary forms, with or without 35c838251403b0be9a882540f1922577abba4c872ager@chromium.org// modification, are permitted provided that the following conditions are 45c838251403b0be9a882540f1922577abba4c872ager@chromium.org// met: 55c838251403b0be9a882540f1922577abba4c872ager@chromium.org// 65c838251403b0be9a882540f1922577abba4c872ager@chromium.org// * Redistributions of source code must retain the above copyright 75c838251403b0be9a882540f1922577abba4c872ager@chromium.org// notice, this list of conditions and the following disclaimer. 85c838251403b0be9a882540f1922577abba4c872ager@chromium.org// * Redistributions in binary form must reproduce the above 95c838251403b0be9a882540f1922577abba4c872ager@chromium.org// copyright notice, this list of conditions and the following 105c838251403b0be9a882540f1922577abba4c872ager@chromium.org// disclaimer in the documentation and/or other materials provided 115c838251403b0be9a882540f1922577abba4c872ager@chromium.org// with the distribution. 125c838251403b0be9a882540f1922577abba4c872ager@chromium.org// * Neither the name of Google Inc. nor the names of its 135c838251403b0be9a882540f1922577abba4c872ager@chromium.org// contributors may be used to endorse or promote products derived 145c838251403b0be9a882540f1922577abba4c872ager@chromium.org// from this software without specific prior written permission. 155c838251403b0be9a882540f1922577abba4c872ager@chromium.org// 165c838251403b0be9a882540f1922577abba4c872ager@chromium.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 175c838251403b0be9a882540f1922577abba4c872ager@chromium.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 185c838251403b0be9a882540f1922577abba4c872ager@chromium.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 195c838251403b0be9a882540f1922577abba4c872ager@chromium.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 205c838251403b0be9a882540f1922577abba4c872ager@chromium.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 215c838251403b0be9a882540f1922577abba4c872ager@chromium.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 225c838251403b0be9a882540f1922577abba4c872ager@chromium.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 235c838251403b0be9a882540f1922577abba4c872ager@chromium.org// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 245c838251403b0be9a882540f1922577abba4c872ager@chromium.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 255c838251403b0be9a882540f1922577abba4c872ager@chromium.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 265c838251403b0be9a882540f1922577abba4c872ager@chromium.org// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 275c838251403b0be9a882540f1922577abba4c872ager@chromium.org 285c838251403b0be9a882540f1922577abba4c872ager@chromium.org#ifndef V8_MIPS_MACRO_ASSEMBLER_MIPS_H_ 295c838251403b0be9a882540f1922577abba4c872ager@chromium.org#define V8_MIPS_MACRO_ASSEMBLER_MIPS_H_ 305c838251403b0be9a882540f1922577abba4c872ager@chromium.org 315c838251403b0be9a882540f1922577abba4c872ager@chromium.org#include "assembler.h" 325c838251403b0be9a882540f1922577abba4c872ager@chromium.org#include "mips/assembler-mips.h" 3340cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org#include "v8globals.h" 345c838251403b0be9a882540f1922577abba4c872ager@chromium.org 355c838251403b0be9a882540f1922577abba4c872ager@chromium.orgnamespace v8 { 365c838251403b0be9a882540f1922577abba4c872ager@chromium.orgnamespace internal { 375c838251403b0be9a882540f1922577abba4c872ager@chromium.org 385c838251403b0be9a882540f1922577abba4c872ager@chromium.org// Forward declaration. 395c838251403b0be9a882540f1922577abba4c872ager@chromium.orgclass JumpTarget; 405c838251403b0be9a882540f1922577abba4c872ager@chromium.org 417516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// Reserved Register Usage Summary. 427516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// 437516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// Registers t8, t9, and at are reserved for use by the MacroAssembler. 447516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// 457516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// The programmer should know that the MacroAssembler may clobber these three, 467516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// but won't touch other registers except in special cases. 477516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// 487516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// Per the MIPS ABI, register t9 must be used for indirect function call 497516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// via 'jalr t9' or 'jr t9' instructions. This is relied upon by gcc when 507516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// trying to update gp register for position-independent-code. Whenever 517516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// MIPS generated code calls C code, it must be via t9 register. 525c838251403b0be9a882540f1922577abba4c872ager@chromium.org 53c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 5483130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org// Flags used for AllocateHeapNumber 5583130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.orgenum TaggingMode { 5683130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org // Tag the result. 5783130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org TAG_RESULT, 5883130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org // Don't tag 5983130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org DONT_TAG_RESULT 6083130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org}; 6183130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org 627516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// Flags used for the ObjectToDoubleFPURegister function. 637516f05132429850aa326421ed3e25f23b4c071blrn@chromium.orgenum ObjectToDoubleFlags { 647516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // No special flags. 657516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org NO_OBJECT_TO_DOUBLE_FLAGS = 0, 667516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Object is known to be a non smi. 677516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org OBJECT_NOT_SMI = 1 << 0, 687516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Don't load NaNs or infinities, branch to the non number case instead. 697516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org AVOID_NANS_AND_INFINITIES = 1 << 1 707516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org}; 717516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 727516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// Allow programmer to use Branch Delay Slot of Branches, Jumps, Calls. 737516f05132429850aa326421ed3e25f23b4c071blrn@chromium.orgenum BranchDelaySlot { 747516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org USE_DELAY_SLOT, 757516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org PROTECT 767516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org}; 777516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 7888aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org// Flags used for the li macro-assembler function. 7988aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.orgenum LiFlags { 8088aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org // If the constant value can be represented in just 16 bits, then 8188aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org // optimize the li to use a single instruction, rather than lui/ori pair. 8288aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org OPTIMIZE_SIZE = 0, 8388aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org // Always use 2 instructions (lui/ori pair), even if the constant could 8488aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org // be loaded with just one, so that this value is patchable later. 8588aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org CONSTANT_SIZE = 1 8688aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org}; 8788aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org 88c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 89b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.orgenum RememberedSetAction { EMIT_REMEMBERED_SET, OMIT_REMEMBERED_SET }; 90b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.orgenum SmiCheck { INLINE_SMI_CHECK, OMIT_SMI_CHECK }; 91b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.orgenum RAStatus { kRAHasNotBeenSaved, kRAHasBeenSaved }; 92b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 93b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.orgbool AreAliased(Register r1, Register r2, Register r3, Register r4); 94b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 95b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 96c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com// ----------------------------------------------------------------------------- 97c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com// Static helper functions. 98c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 991b3afd1cab9087ca3c4e585d3da77d374d65c082mstarzinger@chromium.orginline MemOperand ContextOperand(Register context, int index) { 100c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com return MemOperand(context, Context::SlotOffset(index)); 101c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com} 102c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 103c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 1041b3afd1cab9087ca3c4e585d3da77d374d65c082mstarzinger@chromium.orginline MemOperand GlobalObjectOperand() { 10546839fbbdee40a3d2d924e8b5b13c4139b0b24f2yangguo@chromium.org return ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX); 106c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com} 107c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 108c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 109c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com// Generate a MemOperand for loading a field from an object. 1101b3afd1cab9087ca3c4e585d3da77d374d65c082mstarzinger@chromium.orginline MemOperand FieldMemOperand(Register object, int offset) { 111c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com return MemOperand(object, offset - kHeapObjectTag); 112c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com} 113c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 114c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 115c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com// Generate a MemOperand for storing arguments 5..N on the stack 116c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com// when calling CallCFunction(). 1171b3afd1cab9087ca3c4e585d3da77d374d65c082mstarzinger@chromium.orginline MemOperand CFunctionArgumentOperand(int index) { 118c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com ASSERT(index > kCArgSlotCount); 119c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Argument 5 takes the slot just past the four Arg-slots. 120c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int offset = (index - 5) * kPointerSize + kCArgsSlotsSize; 121c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com return MemOperand(sp, offset); 122c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com} 123c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 124c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 1255c838251403b0be9a882540f1922577abba4c872ager@chromium.org// MacroAssembler implements a collection of frequently used macros. 1265c838251403b0be9a882540f1922577abba4c872ager@chromium.orgclass MacroAssembler: public Assembler { 1275c838251403b0be9a882540f1922577abba4c872ager@chromium.org public: 12883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // The isolate parameter can be NULL if the macro assembler should 12983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // not use isolate-dependent functionality. In this case, it's the 13083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // responsibility of the caller to never invoke such function on the 13183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // macro assembler. 13283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org MacroAssembler(Isolate* isolate, void* buffer, int size); 1335c838251403b0be9a882540f1922577abba4c872ager@chromium.org 1346db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org // Arguments macros. 1357516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org#define COND_TYPED_ARGS Condition cond, Register r1, const Operand& r2 1367516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org#define COND_ARGS cond, r1, r2 1377516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 1386db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org // Cases when relocation is not needed. 1397516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org#define DECLARE_NORELOC_PROTOTYPE(Name, target_type) \ 1407516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void Name(target_type target, BranchDelaySlot bd = PROTECT); \ 1417516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org inline void Name(BranchDelaySlot bd, target_type target) { \ 1427516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Name(target, bd); \ 1437516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } \ 1447516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void Name(target_type target, \ 1457516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org COND_TYPED_ARGS, \ 1467516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org BranchDelaySlot bd = PROTECT); \ 1477516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org inline void Name(BranchDelaySlot bd, \ 1487516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org target_type target, \ 1497516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org COND_TYPED_ARGS) { \ 1507516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Name(target, COND_ARGS, bd); \ 1517516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 1527516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 1537516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org#define DECLARE_BRANCH_PROTOTYPES(Name) \ 1547516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org DECLARE_NORELOC_PROTOTYPE(Name, Label*) \ 1557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org DECLARE_NORELOC_PROTOTYPE(Name, int16_t) 1567516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 1576db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org DECLARE_BRANCH_PROTOTYPES(Branch) 1586db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org DECLARE_BRANCH_PROTOTYPES(BranchAndLink) 1597516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 1606db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org#undef DECLARE_BRANCH_PROTOTYPES 1617516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org#undef COND_TYPED_ARGS 1627516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org#undef COND_ARGS 1635c838251403b0be9a882540f1922577abba4c872ager@chromium.org 16483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 1656db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org // Jump, Call, and Ret pseudo instructions implementing inter-working. 1666db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org#define COND_ARGS Condition cond = al, Register rs = zero_reg, \ 1676db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org const Operand& rt = Operand(zero_reg), BranchDelaySlot bd = PROTECT 1686db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org 1696db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org void Jump(Register target, COND_ARGS); 1706db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org void Jump(intptr_t target, RelocInfo::Mode rmode, COND_ARGS); 1716db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org void Jump(Address target, RelocInfo::Mode rmode, COND_ARGS); 1726db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org void Jump(Handle<Code> code, RelocInfo::Mode rmode, COND_ARGS); 173c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com static int CallSize(Register target, COND_ARGS); 1746db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org void Call(Register target, COND_ARGS); 175c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com static int CallSize(Address target, RelocInfo::Mode rmode, COND_ARGS); 1766db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org void Call(Address target, RelocInfo::Mode rmode, COND_ARGS); 17732d7dbafe29be06cec1edd36c31fbe2865c799f4ulan@chromium.org int CallSize(Handle<Code> code, 17832d7dbafe29be06cec1edd36c31fbe2865c799f4ulan@chromium.org RelocInfo::Mode rmode = RelocInfo::CODE_TARGET, 17932d7dbafe29be06cec1edd36c31fbe2865c799f4ulan@chromium.org TypeFeedbackId ast_id = TypeFeedbackId::None(), 18032d7dbafe29be06cec1edd36c31fbe2865c799f4ulan@chromium.org COND_ARGS); 1816db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org void Call(Handle<Code> code, 1826db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org RelocInfo::Mode rmode = RelocInfo::CODE_TARGET, 183471f2f1d24adb4bad1edc3bf0ee35092486de187mstarzinger@chromium.org TypeFeedbackId ast_id = TypeFeedbackId::None(), 1846db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org COND_ARGS); 1856db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org void Ret(COND_ARGS); 186c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com inline void Ret(BranchDelaySlot bd, Condition cond = al, 187c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Register rs = zero_reg, const Operand& rt = Operand(zero_reg)) { 188c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Ret(cond, rs, rt, bd); 1896db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org } 1906db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org 19188aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org void Branch(Label* L, 19288aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org Condition cond, 19388aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org Register rs, 19488aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org Heap::RootListIndex index, 19588aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org BranchDelaySlot bdslot = PROTECT); 19688aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org 1976db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org#undef COND_ARGS 19883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 1995c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Emit code to discard a non-negative number of pointer-sized elements 2005c838251403b0be9a882540f1922577abba4c872ager@chromium.org // from the stack, clobbering only the sp register. 2017516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void Drop(int count, 2027516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Condition cond = cc_always, 2037516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register reg = no_reg, 2047516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org const Operand& op = Operand(no_reg)); 2057516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 2066ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org // Trivial case of DropAndRet that utilizes the delay slot and only emits 2076ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org // 2 instructions. 2086ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org void DropAndRet(int drop); 2096ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org 2106ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org void DropAndRet(int drop, 2116ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org Condition cond, 2126ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org Register reg, 2136ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org const Operand& op); 2147516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 2157516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Swap two registers. If the scratch register is omitted then a slightly 2167516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // less efficient form using xor instead of mov is emitted. 2177516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void Swap(Register reg1, Register reg2, Register scratch = no_reg); 2185c838251403b0be9a882540f1922577abba4c872ager@chromium.org 2195c838251403b0be9a882540f1922577abba4c872ager@chromium.org void Call(Label* target); 2207516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 22140cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org inline void Move(Register dst, Register src) { 22240cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org if (!dst.is(src)) { 22340cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org mov(dst, src); 22440cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org } 22540cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org } 22640cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org 22740cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org inline void Move(FPURegister dst, FPURegister src) { 22840cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org if (!dst.is(src)) { 22940cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org mov_d(dst, src); 23040cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org } 23140cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org } 23240cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org 23340cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org inline void Move(Register dst_low, Register dst_high, FPURegister src) { 23440cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org mfc1(dst_low, src); 23540cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org mfc1(dst_high, FPURegister::from_code(src.code() + 1)); 23640cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org } 23740cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org 238c4c71ea2d66514cf02679bc673c5ba8c9406bad8palfia@homejinni.com inline void FmoveHigh(Register dst_high, FPURegister src) { 239c4c71ea2d66514cf02679bc673c5ba8c9406bad8palfia@homejinni.com mfc1(dst_high, FPURegister::from_code(src.code() + 1)); 240c4c71ea2d66514cf02679bc673c5ba8c9406bad8palfia@homejinni.com } 241c4c71ea2d66514cf02679bc673c5ba8c9406bad8palfia@homejinni.com 242c4c71ea2d66514cf02679bc673c5ba8c9406bad8palfia@homejinni.com inline void FmoveLow(Register dst_low, FPURegister src) { 243c4c71ea2d66514cf02679bc673c5ba8c9406bad8palfia@homejinni.com mfc1(dst_low, src); 244c4c71ea2d66514cf02679bc673c5ba8c9406bad8palfia@homejinni.com } 245c4c71ea2d66514cf02679bc673c5ba8c9406bad8palfia@homejinni.com 24640cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org inline void Move(FPURegister dst, Register src_low, Register src_high) { 24740cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org mtc1(src_low, dst); 24840cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org mtc1(src_high, FPURegister::from_code(dst.code() + 1)); 24940cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org } 2505c838251403b0be9a882540f1922577abba4c872ager@chromium.org 2513233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org // Conditional move. 252c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void Move(FPURegister dst, double imm); 2533233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org void Movz(Register rd, Register rs, Register rt); 2543233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org void Movn(Register rd, Register rs, Register rt); 2553233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org void Movt(Register rd, Register rs, uint16_t cc = 0); 2563233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org void Movf(Register rd, Register rs, uint16_t cc = 0); 2573233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org 2583233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org void Clz(Register rd, Register rs); 259c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 2605c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Jump unconditionally to given label. 2615c838251403b0be9a882540f1922577abba4c872ager@chromium.org // We NEED a nop in the branch delay slot, as it used by v8, for example in 2625c838251403b0be9a882540f1922577abba4c872ager@chromium.org // CodeGenerator::ProcessDeferred(). 2635d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org // Currently the branch delay slot is filled by the MacroAssembler. 2645c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Use rather b(Label) for code generation. 2655c838251403b0be9a882540f1922577abba4c872ager@chromium.org void jmp(Label* L) { 2667516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Branch(L); 2675c838251403b0be9a882540f1922577abba4c872ager@chromium.org } 2685c838251403b0be9a882540f1922577abba4c872ager@chromium.org 2695c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Load an object from the root table. 2705c838251403b0be9a882540f1922577abba4c872ager@chromium.org void LoadRoot(Register destination, 2715c838251403b0be9a882540f1922577abba4c872ager@chromium.org Heap::RootListIndex index); 2725c838251403b0be9a882540f1922577abba4c872ager@chromium.org void LoadRoot(Register destination, 2735c838251403b0be9a882540f1922577abba4c872ager@chromium.org Heap::RootListIndex index, 2745c838251403b0be9a882540f1922577abba4c872ager@chromium.org Condition cond, Register src1, const Operand& src2); 2755c838251403b0be9a882540f1922577abba4c872ager@chromium.org 2767516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Store an object to the root table. 2777516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void StoreRoot(Register source, 2787516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Heap::RootListIndex index); 2797516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void StoreRoot(Register source, 2807516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Heap::RootListIndex index, 2817516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Condition cond, Register src1, const Operand& src2); 2827516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 28364e3a4be4a99f31920128de34573c8ac9038de42ricow@chromium.org void LoadHeapObject(Register dst, Handle<HeapObject> object); 2847516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 285fab1498f2f42726c7de46c3ed560d56dd072a8b3rossberg@chromium.org void LoadObject(Register result, Handle<Object> object) { 28679e7902fa5f94747b5383dd40f3002dd8b62303arossberg@chromium.org AllowDeferredHandleDereference heap_object_check; 287fab1498f2f42726c7de46c3ed560d56dd072a8b3rossberg@chromium.org if (object->IsHeapObject()) { 288fab1498f2f42726c7de46c3ed560d56dd072a8b3rossberg@chromium.org LoadHeapObject(result, Handle<HeapObject>::cast(object)); 289fab1498f2f42726c7de46c3ed560d56dd072a8b3rossberg@chromium.org } else { 290fab1498f2f42726c7de46c3ed560d56dd072a8b3rossberg@chromium.org li(result, object); 291fab1498f2f42726c7de46c3ed560d56dd072a8b3rossberg@chromium.org } 292fab1498f2f42726c7de46c3ed560d56dd072a8b3rossberg@chromium.org } 293fab1498f2f42726c7de46c3ed560d56dd072a8b3rossberg@chromium.org 294b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // --------------------------------------------------------------------------- 295b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // GC Support 296b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 297b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void IncrementalMarkingRecordWriteHelper(Register object, 298b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register value, 299b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register address); 300b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 301b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org enum RememberedSetFinalAction { 302b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org kReturnAtEnd, 303b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org kFallThroughAtEnd 304b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org }; 305b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 306b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 307b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Record in the remembered set the fact that we have a pointer to new space 308b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // at the address pointed to by the addr register. Only works if addr is not 309b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // in new space. 310b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void RememberedSetHelper(Register object, // Used for debug code. 311b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register addr, 312b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch, 313b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org SaveFPRegsMode save_fp, 314b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org RememberedSetFinalAction and_then); 315b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 316b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void CheckPageFlag(Register object, 317b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch, 318b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org int mask, 319b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Condition cc, 320b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Label* condition_met); 321b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 322f005df6c3232e65028420519fbab7284bc9b33aedanno@chromium.org void CheckMapDeprecated(Handle<Map> map, 323f005df6c3232e65028420519fbab7284bc9b33aedanno@chromium.org Register scratch, 324f005df6c3232e65028420519fbab7284bc9b33aedanno@chromium.org Label* if_deprecated); 325f005df6c3232e65028420519fbab7284bc9b33aedanno@chromium.org 326b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Check if object is in new space. Jumps if the object is not in new space. 327b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // The register scratch can be object itself, but it will be clobbered. 328b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void JumpIfNotInNewSpace(Register object, 329b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch, 330b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Label* branch) { 331b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org InNewSpace(object, scratch, ne, branch); 332b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org } 333b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 334b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Check if object is in new space. Jumps if the object is in new space. 335b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // The register scratch can be object itself, but scratch will be clobbered. 336b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void JumpIfInNewSpace(Register object, 337b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch, 338b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Label* branch) { 339b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org InNewSpace(object, scratch, eq, branch); 340b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org } 3417516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 342b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Check if an object has a given incremental marking color. 343b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void HasColor(Register object, 344b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch0, 345b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch1, 346b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Label* has_color, 347b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org int first_bit, 348b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org int second_bit); 3497516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 350b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void JumpIfBlack(Register object, 3517516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch0, 352b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch1, 353b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Label* on_black); 354b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 355b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Checks the color of an object. If the object is already grey or black 356b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // then we just fall through, since it is already live. If it is white and 357b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // we can determine that it doesn't need to be scanned, then we just mark it 358b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // black and fall through. For the rest we jump to the label so the 359b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // incremental marker can fix its assumptions. 360b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void EnsureNotWhite(Register object, 361b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch1, 362b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch2, 363b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch3, 364b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Label* object_is_white_and_not_data); 3657516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 3662efb900e7350b14be905abdeab077f3a64c583cfulan@chromium.org // Detects conservatively whether an object is data-only, i.e. it does need to 367b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // be scanned by the garbage collector. 368b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void JumpIfDataObject(Register value, 369b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch, 370b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Label* not_data_object); 371b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 372b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Notify the garbage collector that we wrote a pointer into an object. 373b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // |object| is the object being stored into, |value| is the object being 374b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // stored. value and scratch registers are clobbered by the operation. 375b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // The offset is the offset from the start of the object, not the offset from 376b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // the tagged HeapObject pointer. For use with FieldOperand(reg, off). 377b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void RecordWriteField( 378b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register object, 379b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org int offset, 380b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register value, 381b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch, 382b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org RAStatus ra_status, 383b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org SaveFPRegsMode save_fp, 384b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, 385b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org SmiCheck smi_check = INLINE_SMI_CHECK); 386b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 387b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // As above, but the offset has the tag presubtracted. For use with 388b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // MemOperand(reg, off). 389b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org inline void RecordWriteContextSlot( 390b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register context, 391b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org int offset, 392b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register value, 393b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch, 394b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org RAStatus ra_status, 395b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org SaveFPRegsMode save_fp, 396b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, 397b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org SmiCheck smi_check = INLINE_SMI_CHECK) { 398b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org RecordWriteField(context, 399b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org offset + kHeapObjectTag, 400b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org value, 401b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org scratch, 402b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org ra_status, 403b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org save_fp, 404b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org remembered_set_action, 405b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org smi_check); 406b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org } 407b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 408b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // For a given |object| notify the garbage collector that the slot |address| 409b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // has been written. |value| is the object being stored. The value and 410b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // address registers are clobbered by the operation. 411b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void RecordWrite( 412b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register object, 413b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register address, 414b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register value, 415b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org RAStatus ra_status, 416b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org SaveFPRegsMode save_fp, 417b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, 418b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org SmiCheck smi_check = INLINE_SMI_CHECK); 4197516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 4207516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 4217516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // --------------------------------------------------------------------------- 42283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Inline caching support. 4237516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 4247516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Generate code for checking access rights - used for security checks 4257516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // on access to global objects across environments. The holder register 4267516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // is left untouched, whereas both scratch registers are clobbered. 4277516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CheckAccessGlobalProxy(Register holder_reg, 4287516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 4297516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* miss); 4307516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 431f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com void GetNumberHash(Register reg0, Register scratch); 4326db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org 4336db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org void LoadFromNumberDictionary(Label* miss, 4346db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org Register elements, 4356db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org Register key, 4366db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org Register result, 4376db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org Register reg0, 4386db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org Register reg1, 4396db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org Register reg2); 4406db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org 4416db8871df97e7137d11f956af3c772f4f8370761sgjesse@chromium.org 4427516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org inline void MarkCode(NopMarkerTypes type) { 4437516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org nop(type); 4447516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 4457516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 4467516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Check if the given instruction is a 'type' marker. 4472efb900e7350b14be905abdeab077f3a64c583cfulan@chromium.org // i.e. check if it is a sll zero_reg, zero_reg, <type> (referenced as 4487516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // nop(type)). These instructions are generated to mark special location in 4497516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // the code, like some special IC code. 4507516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org static inline bool IsMarkedCode(Instr instr, int type) { 4517516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org ASSERT((FIRST_IC_MARKER <= type) && (type < LAST_CODE_MARKER)); 4527516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org return IsNop(instr, type); 4537516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 4547516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 4557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 4567516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org static inline int GetCodeMarker(Instr instr) { 4577516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org uint32_t opcode = ((instr & kOpcodeMask)); 4587516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org uint32_t rt = ((instr & kRtFieldMask) >> kRtShift); 4597516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org uint32_t rs = ((instr & kRsFieldMask) >> kRsShift); 4607516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org uint32_t sa = ((instr & kSaFieldMask) >> kSaShift); 4617516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 4627516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Return <n> if we have a sll zero_reg, zero_reg, n 4637516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // else return -1. 4647516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org bool sllzz = (opcode == SLL && 4657516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org rt == static_cast<uint32_t>(ToNumber(zero_reg)) && 4667516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org rs == static_cast<uint32_t>(ToNumber(zero_reg))); 4677516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org int type = 4687516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org (sllzz && FIRST_IC_MARKER <= sa && sa < LAST_CODE_MARKER) ? sa : -1; 4697516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org ASSERT((type == -1) || 4707516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org ((FIRST_IC_MARKER <= type) && (type < LAST_CODE_MARKER))); 4717516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org return type; 4725d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org } 4735d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 4745c838251403b0be9a882540f1922577abba4c872ager@chromium.org 4755c838251403b0be9a882540f1922577abba4c872ager@chromium.org 4765c838251403b0be9a882540f1922577abba4c872ager@chromium.org // --------------------------------------------------------------------------- 47783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Allocation support. 4787516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 4794c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org // Allocate an object in new space or old pointer space. The object_size is 4804c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org // specified either in bytes or in words if the allocation flag SIZE_IN_WORDS 4814c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org // is passed. If the space is exhausted control continues at the gc_required 4824c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org // label. The allocated object is returned in result. If the flag 4834c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org // tag_allocated_object is true the result is tagged as as a heap object. 4844c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org // All registers are clobbered also when control continues at the gc_required 4854c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org // label. 4864c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org void Allocate(int object_size, 4874c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org Register result, 4884c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org Register scratch1, 4894c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org Register scratch2, 4904c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org Label* gc_required, 4914c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org AllocationFlags flags); 4924c54a2aa3c7806f38af0c7dfde22395232ebdff7jkummerow@chromium.org 493f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org void Allocate(Register object_size, 494f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org Register result, 495f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org Register scratch1, 496f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org Register scratch2, 497f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org Label* gc_required, 498f705b5034dc5bc422ac1019b591469a7d0534772mstarzinger@chromium.org AllocationFlags flags); 4997516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 5007516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Undo allocation in new space. The object passed and objects allocated after 5017516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // it will no longer be allocated. The caller must make sure that no pointers 5027516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // are left to the object(s) no longer allocated as they would be invalid when 5037516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // allocation is undone. 5047516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void UndoAllocationInNewSpace(Register object, Register scratch); 5057516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 5067516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 5077516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void AllocateTwoByteString(Register result, 5087516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register length, 5097516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 5107516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 5117516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch3, 5127516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* gc_required); 5137516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void AllocateAsciiString(Register result, 5147516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register length, 5157516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 5167516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 5177516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch3, 5187516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* gc_required); 5197516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void AllocateTwoByteConsString(Register result, 5207516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register length, 5217516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 5227516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 5237516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* gc_required); 5247516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void AllocateAsciiConsString(Register result, 5257516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register length, 5267516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 5277516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 5287516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* gc_required); 5291805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org void AllocateTwoByteSlicedString(Register result, 5301805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org Register length, 5311805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org Register scratch1, 5321805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org Register scratch2, 5331805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org Label* gc_required); 5341805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org void AllocateAsciiSlicedString(Register result, 5351805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org Register length, 5361805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org Register scratch1, 5371805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org Register scratch2, 5381805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org Label* gc_required); 5397516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 5407516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Allocates a heap number or jumps to the gc_required label if the young 5417516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // space is full and a scavenge is needed. All registers are clobbered also 5427516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // when control continues at the gc_required label. 5437516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void AllocateHeapNumber(Register result, 5447516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 5457516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 5467516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register heap_number_map, 54783130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org Label* gc_required, 54883130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org TaggingMode tagging_mode = TAG_RESULT); 5497516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void AllocateHeapNumberWithValue(Register result, 5507516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org FPURegister value, 5517516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 5527516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 5537516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* gc_required); 5547516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 5557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // --------------------------------------------------------------------------- 55683a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Instruction macros. 5575c838251403b0be9a882540f1922577abba4c872ager@chromium.org 5587516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org#define DEFINE_INSTRUCTION(instr) \ 5595c838251403b0be9a882540f1922577abba4c872ager@chromium.org void instr(Register rd, Register rs, const Operand& rt); \ 5605c838251403b0be9a882540f1922577abba4c872ager@chromium.org void instr(Register rd, Register rs, Register rt) { \ 5615c838251403b0be9a882540f1922577abba4c872ager@chromium.org instr(rd, rs, Operand(rt)); \ 5625c838251403b0be9a882540f1922577abba4c872ager@chromium.org } \ 5635c838251403b0be9a882540f1922577abba4c872ager@chromium.org void instr(Register rs, Register rt, int32_t j) { \ 5645c838251403b0be9a882540f1922577abba4c872ager@chromium.org instr(rs, rt, Operand(j)); \ 5655c838251403b0be9a882540f1922577abba4c872ager@chromium.org } 5665c838251403b0be9a882540f1922577abba4c872ager@chromium.org 5677516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org#define DEFINE_INSTRUCTION2(instr) \ 5685c838251403b0be9a882540f1922577abba4c872ager@chromium.org void instr(Register rs, const Operand& rt); \ 5695c838251403b0be9a882540f1922577abba4c872ager@chromium.org void instr(Register rs, Register rt) { \ 5705c838251403b0be9a882540f1922577abba4c872ager@chromium.org instr(rs, Operand(rt)); \ 5715c838251403b0be9a882540f1922577abba4c872ager@chromium.org } \ 5725c838251403b0be9a882540f1922577abba4c872ager@chromium.org void instr(Register rs, int32_t j) { \ 5735c838251403b0be9a882540f1922577abba4c872ager@chromium.org instr(rs, Operand(j)); \ 5745c838251403b0be9a882540f1922577abba4c872ager@chromium.org } 5755c838251403b0be9a882540f1922577abba4c872ager@chromium.org 5765c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION(Addu); 5777516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org DEFINE_INSTRUCTION(Subu); 5785c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION(Mul); 5795c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION2(Mult); 5805c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION2(Multu); 5815c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION2(Div); 5825c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION2(Divu); 5835c838251403b0be9a882540f1922577abba4c872ager@chromium.org 5845c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION(And); 5855c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION(Or); 5865c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION(Xor); 5875c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION(Nor); 58883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org DEFINE_INSTRUCTION2(Neg); 5895c838251403b0be9a882540f1922577abba4c872ager@chromium.org 5905c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION(Slt); 5915c838251403b0be9a882540f1922577abba4c872ager@chromium.org DEFINE_INSTRUCTION(Sltu); 5925c838251403b0be9a882540f1922577abba4c872ager@chromium.org 5937516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // MIPS32 R2 instruction macro. 5947516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org DEFINE_INSTRUCTION(Ror); 5957516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 5965c838251403b0be9a882540f1922577abba4c872ager@chromium.org#undef DEFINE_INSTRUCTION 5975c838251403b0be9a882540f1922577abba4c872ager@chromium.org#undef DEFINE_INSTRUCTION2 5985c838251403b0be9a882540f1922577abba4c872ager@chromium.org 5995c838251403b0be9a882540f1922577abba4c872ager@chromium.org 60083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // --------------------------------------------------------------------------- 60183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Pseudo-instructions. 6025c838251403b0be9a882540f1922577abba4c872ager@chromium.org 6035c838251403b0be9a882540f1922577abba4c872ager@chromium.org void mov(Register rd, Register rt) { or_(rd, rt, zero_reg); } 6045c838251403b0be9a882540f1922577abba4c872ager@chromium.org 60583a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Load int32 in the rd register. 60688aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org void li(Register rd, Operand j, LiFlags mode = OPTIMIZE_SIZE); 60788aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org inline void li(Register rd, int32_t j, LiFlags mode = OPTIMIZE_SIZE) { 60888aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org li(rd, Operand(j), mode); 6095c838251403b0be9a882540f1922577abba4c872ager@chromium.org } 61088aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org inline void li(Register dst, Handle<Object> value, 61188aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org LiFlags mode = OPTIMIZE_SIZE) { 61288aa058bdadfa79ae2836d12d6dd2d1c28aa490cdanno@chromium.org li(dst, Operand(value), mode); 6137516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 6145c838251403b0be9a882540f1922577abba4c872ager@chromium.org 6155c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Push multiple registers on the stack. 616ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org // Registers are saved in numerical order, with higher numbered registers 61783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // saved in higher memory addresses. 6185c838251403b0be9a882540f1922577abba4c872ager@chromium.org void MultiPush(RegList regs); 6195c838251403b0be9a882540f1922577abba4c872ager@chromium.org void MultiPushReversed(RegList regs); 6207516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 6211805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org void MultiPushFPU(RegList regs); 6221805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org void MultiPushReversedFPU(RegList regs); 6231805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org 62483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void push(Register src) { 6255c838251403b0be9a882540f1922577abba4c872ager@chromium.org Addu(sp, sp, Operand(-kPointerSize)); 6265c838251403b0be9a882540f1922577abba4c872ager@chromium.org sw(src, MemOperand(sp, 0)); 6275c838251403b0be9a882540f1922577abba4c872ager@chromium.org } 628594006017e46d82ed7146611dc12c20e3c509c7ddanno@chromium.org void Push(Register src) { push(src); } 6297516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 6306d786c9805481bd13ecb29c3155540f2f32950e1svenpanne@chromium.org // Push a handle. 6316d786c9805481bd13ecb29c3155540f2f32950e1svenpanne@chromium.org void Push(Handle<Object> handle); 63209d7ab5aba54ebac170eac755664c45eefb0be7dulan@chromium.org void Push(Smi* smi) { Push(Handle<Smi>(smi, isolate())); } 6336d786c9805481bd13ecb29c3155540f2f32950e1svenpanne@chromium.org 63483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Push two registers. Pushes leftmost register first (to highest address). 63583a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void Push(Register src1, Register src2) { 6367516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Subu(sp, sp, Operand(2 * kPointerSize)); 6377516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sw(src1, MemOperand(sp, 1 * kPointerSize)); 6387516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sw(src2, MemOperand(sp, 0 * kPointerSize)); 6397516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 6407516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 64183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Push three registers. Pushes leftmost register first (to highest address). 64283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void Push(Register src1, Register src2, Register src3) { 64383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Subu(sp, sp, Operand(3 * kPointerSize)); 6447516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sw(src1, MemOperand(sp, 2 * kPointerSize)); 6457516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sw(src2, MemOperand(sp, 1 * kPointerSize)); 6467516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sw(src3, MemOperand(sp, 0 * kPointerSize)); 6477516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 6487516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 64983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Push four registers. Pushes leftmost register first (to highest address). 65083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void Push(Register src1, Register src2, Register src3, Register src4) { 65183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Subu(sp, sp, Operand(4 * kPointerSize)); 6527516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sw(src1, MemOperand(sp, 3 * kPointerSize)); 6537516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sw(src2, MemOperand(sp, 2 * kPointerSize)); 6547516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sw(src3, MemOperand(sp, 1 * kPointerSize)); 6557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sw(src4, MemOperand(sp, 0 * kPointerSize)); 6567516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 6577516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 6585c838251403b0be9a882540f1922577abba4c872ager@chromium.org void Push(Register src, Condition cond, Register tst1, Register tst2) { 65983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Since we don't have conditional execution we use a Branch. 6607516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Branch(3, cond, tst1, Operand(tst2)); 66183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Subu(sp, sp, Operand(kPointerSize)); 6625c838251403b0be9a882540f1922577abba4c872ager@chromium.org sw(src, MemOperand(sp, 0)); 6635c838251403b0be9a882540f1922577abba4c872ager@chromium.org } 6645c838251403b0be9a882540f1922577abba4c872ager@chromium.org 6655c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Pops multiple values from the stack and load them in the 6665c838251403b0be9a882540f1922577abba4c872ager@chromium.org // registers specified in regs. Pop order is the opposite as in MultiPush. 6675c838251403b0be9a882540f1922577abba4c872ager@chromium.org void MultiPop(RegList regs); 6685c838251403b0be9a882540f1922577abba4c872ager@chromium.org void MultiPopReversed(RegList regs); 66983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 6701805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org void MultiPopFPU(RegList regs); 6711805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org void MultiPopReversedFPU(RegList regs); 6721805e21b0aece8c05f4960a5c0751c4463557891fschneider@chromium.org 67383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void pop(Register dst) { 6745c838251403b0be9a882540f1922577abba4c872ager@chromium.org lw(dst, MemOperand(sp, 0)); 6755c838251403b0be9a882540f1922577abba4c872ager@chromium.org Addu(sp, sp, Operand(kPointerSize)); 6765c838251403b0be9a882540f1922577abba4c872ager@chromium.org } 677594006017e46d82ed7146611dc12c20e3c509c7ddanno@chromium.org void Pop(Register dst) { pop(dst); } 67883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 67983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Pop two registers. Pops rightmost register first (from lower address). 68083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void Pop(Register src1, Register src2) { 68183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org ASSERT(!src1.is(src2)); 68283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org lw(src2, MemOperand(sp, 0 * kPointerSize)); 68383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org lw(src1, MemOperand(sp, 1 * kPointerSize)); 68483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Addu(sp, sp, 2 * kPointerSize); 68583a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org } 68683a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 687c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Pop three registers. Pops rightmost register first (from lower address). 688c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void Pop(Register src1, Register src2, Register src3) { 689c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com lw(src3, MemOperand(sp, 0 * kPointerSize)); 690c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com lw(src2, MemOperand(sp, 1 * kPointerSize)); 691c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com lw(src1, MemOperand(sp, 2 * kPointerSize)); 692c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Addu(sp, sp, 3 * kPointerSize); 693c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com } 694c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 6957516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void Pop(uint32_t count = 1) { 6967516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Addu(sp, sp, Operand(count * kPointerSize)); 6977516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 6987516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 6997516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Push and pop the registers that can hold pointers, as defined by the 7007516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // RegList constant kSafepointSavedRegisters. 70140cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void PushSafepointRegisters(); 70240cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void PopSafepointRegisters(); 70340cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void PushSafepointRegistersAndDoubles(); 70440cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void PopSafepointRegistersAndDoubles(); 70540cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // Store value in register src in the safepoint stack slot for 70640cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // register dst. 70740cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void StoreToSafepointRegisterSlot(Register src, Register dst); 70840cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void StoreToSafepointRegistersAndDoublesSlot(Register src, Register dst); 70940cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // Load the value of the src register from its safepoint stack slot 71040cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // into register dst. 71140cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void LoadFromSafepointRegisterSlot(Register dst, Register src); 7127516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 713c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Flush the I-cache from asm code. You should use CPU::FlushICache from C. 714c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Does not handle errors. 715c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void FlushICache(Register address, unsigned instructions); 716c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 7177516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // MIPS32 R2 instruction macro. 7187516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void Ins(Register rt, Register rs, uint16_t pos, uint16_t size); 7197516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void Ext(Register rt, Register rs, uint16_t pos, uint16_t size); 7207516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 721c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // --------------------------------------------------------------------------- 722c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // FPU macros. These do not handle special cases like NaN or +- inf. 723c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 7247516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Convert unsigned word to double. 7254668a2c7a746d01b382f23aa32e163701e3075f8ricow@chromium.org void Cvt_d_uw(FPURegister fd, FPURegister fs, FPURegister scratch); 7264668a2c7a746d01b382f23aa32e163701e3075f8ricow@chromium.org void Cvt_d_uw(FPURegister fd, Register rs, FPURegister scratch); 7277516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 7287516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Convert double to unsigned word. 7294668a2c7a746d01b382f23aa32e163701e3075f8ricow@chromium.org void Trunc_uw_d(FPURegister fd, FPURegister fs, FPURegister scratch); 7304668a2c7a746d01b382f23aa32e163701e3075f8ricow@chromium.org void Trunc_uw_d(FPURegister fd, Register rs, FPURegister scratch); 7317516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 7323233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org void Trunc_w_d(FPURegister fd, FPURegister fs); 7333233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org void Round_w_d(FPURegister fd, FPURegister fs); 7343233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org void Floor_w_d(FPURegister fd, FPURegister fs); 7353233d2f30cad1f77ff9f43fcbee12f182b18f6b6mstarzinger@chromium.org void Ceil_w_d(FPURegister fd, FPURegister fs); 736c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Wrapper function for the different cmp/branch types. 737c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void BranchF(Label* target, 738c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Label* nan, 739c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Condition cc, 740c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com FPURegister cmp1, 741c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com FPURegister cmp2, 742c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com BranchDelaySlot bd = PROTECT); 743c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 744c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Alternate (inline) version for better readability with USE_DELAY_SLOT. 745c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com inline void BranchF(BranchDelaySlot bd, 746c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Label* target, 747c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Label* nan, 748c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Condition cc, 749c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com FPURegister cmp1, 750c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com FPURegister cmp2) { 751c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com BranchF(target, nan, cc, cmp1, cmp2, bd); 752c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com }; 753c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 7547516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Convert the HeapNumber pointed to by source to a 32bits signed integer 7557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // dest. If the HeapNumber does not fit into a 32bits signed integer branch 7567516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // to not_int32 label. If FPU is available double_scratch is used but not 7577516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // scratch2. 7587516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void ConvertToInt32(Register source, 7597516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register dest, 7607516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 7617516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 7627516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org FPURegister double_scratch, 7637516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label *not_int32); 7647516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 76583130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org // Truncates a double using a specific rounding mode, and writes the value 76683130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org // to the result register. 767c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // The except_flag will contain any exceptions caused by the instruction. 76883130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org // If check_inexact is kDontCheckForInexactConversion, then the inexact 769c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // exception is masked. 770c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void EmitFPUTruncate(FPURoundingMode rounding_mode, 77183130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org Register result, 772c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com DoubleRegister double_input, 77383130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org Register scratch, 77483130cfc204d3ffed6832a7ef149b19328a58b33svenpanne@chromium.org DoubleRegister double_scratch, 775c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Register except_flag, 776c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com CheckForInexactConversion check_inexact 777c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com = kDontCheckForInexactConversion); 778c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 77983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Helper for EmitECMATruncate. 78083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // This will truncate a floating-point value outside of the singed 32bit 78183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // integer range to a 32bit signed integer. 78283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Expects the double value loaded in input_high and input_low. 78383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Exits with the answer in 'result'. 78483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Note that this code does not work for values in the 32bit range! 78583a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void EmitOutOfInt32RangeTruncate(Register result, 78683a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register input_high, 78783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register input_low, 78883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register scratch); 78983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 790d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com // Performs a truncating conversion of a floating point number as used by 791d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com // the JS bitwise operations. See ECMA-262 9.5: ToInt32. 792d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com // Exits with 'result' holding the answer and all other registers clobbered. 793d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com void EmitECMATruncate(Register result, 794d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com FPURegister double_input, 795d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com FPURegister single_scratch, 796d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com Register scratch, 797d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com Register scratch2, 798d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com Register scratch3); 799d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com 8007516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Enter exit frame. 8017304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org // argc - argument count to be dropped by LeaveExitFrame. 8027304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org // save_doubles - saves FPU registers on stack, currently disabled. 8037304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org // stack_space - extra stack space. 8047304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org void EnterExitFrame(bool save_doubles, 8057304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org int stack_space = 0); 8065d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 8077304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org // Leave the current exit frame. 8086ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org void LeaveExitFrame(bool save_doubles, 8096ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org Register arg_count, 8106ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org bool do_return = false); 8115d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 8127516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Get the actual activation frame alignment for target environment. 8137516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org static int ActivationFrameAlignment(); 8145d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 8157304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org // Make sure the stack is aligned. Only emits code in debug mode. 8167304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org void AssertStackIsAligned(); 8177304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org 8187516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void LoadContext(Register dst, int context_chain_length); 8195d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 82078d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org // Conditionally load the cached Array transitioned map of type 82146839fbbdee40a3d2d924e8b5b13c4139b0b24f2yangguo@chromium.org // transitioned_kind from the native context if the map in register 82246839fbbdee40a3d2d924e8b5b13c4139b0b24f2yangguo@chromium.org // map_in_out is the cached Array map in the native context of 82378d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org // expected_kind. 82478d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org void LoadTransitionedArrayMapConditional( 82578d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org ElementsKind expected_kind, 82678d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org ElementsKind transitioned_kind, 82778d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org Register map_in_out, 82878d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org Register scratch, 82978d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org Label* no_map_match); 83078d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org 83178d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org // Load the initial map for new Arrays from a JSFunction. 83278d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org void LoadInitialArrayMap(Register function_in, 83378d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org Register scratch, 834830d30c478be03b0ac560f4002833ab141e41effsvenpanne@chromium.org Register map_out, 835830d30c478be03b0ac560f4002833ab141e41effsvenpanne@chromium.org bool can_have_holes); 836fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org 8377516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void LoadGlobalFunction(int index, Register function); 838750145ab1b720c97adf2b548cc8fbd28c8b8e06dulan@chromium.org void LoadArrayFunction(Register function); 8397516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 8407516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Load the initial map from the global function. The registers 8417516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // function and map can be the same, function is then overwritten. 8427516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void LoadGlobalFunctionInitialMap(Register function, 8437516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register map, 8447516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch); 8457516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 846f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com void InitializeRootRegister() { 847f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com ExternalReference roots_array_start = 848f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com ExternalReference::roots_array_start(isolate()); 849f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com li(kRootRegister, Operand(roots_array_start)); 850f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com } 851c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 8527516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // ------------------------------------------------------------------------- 85383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // JavaScript invokes. 8545d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 855f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com // Set up call kind marking in t1. The method takes t1 as an 85640cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // explicit first parameter to make the code more readable at the 85740cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // call sites. 85840cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void SetCallKind(Register dst, CallKind kind); 85940cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org 8605d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org // Invoke the JavaScript function code by either calling or jumping. 8615d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org void InvokeCode(Register code, 8625d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org const ParameterCount& expected, 8635d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org const ParameterCount& actual, 8647516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org InvokeFlag flag, 865d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com const CallWrapper& call_wrapper, 866d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com CallKind call_kind); 8675d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 8685d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org void InvokeCode(Handle<Code> code, 8695d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org const ParameterCount& expected, 8705d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org const ParameterCount& actual, 8715d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org RelocInfo::Mode rmode, 87240cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org InvokeFlag flag, 873d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com CallKind call_kind); 8745d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 8755d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org // Invoke the JavaScript function in the given register. Changes the 8765d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org // current context to the context in the function before invoking. 8775d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org void InvokeFunction(Register function, 8785d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org const ParameterCount& actual, 8797516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org InvokeFlag flag, 880d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com const CallWrapper& call_wrapper, 881d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com CallKind call_kind); 8827516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 883c3b37129d6387b2db313f9100256d2d5f60dd9a8jkummerow@chromium.org void InvokeFunction(Handle<JSFunction> function, 88432d7dbafe29be06cec1edd36c31fbe2865c799f4ulan@chromium.org const ParameterCount& expected, 8857516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org const ParameterCount& actual, 886d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com InvokeFlag flag, 88705ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org const CallWrapper& call_wrapper, 888d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com CallKind call_kind); 8895d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 8905d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 8917516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void IsObjectJSObjectType(Register heap_object, 8927516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register map, 8937516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 8947516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* fail); 8957516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 8967516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void IsInstanceJSObjectType(Register map, 8977516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 8987516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* fail); 8997516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 9007516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void IsObjectJSStringType(Register object, 9017516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 9027516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* fail); 9037516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 9049faefa4670e0c454c6e56bb87b4410d73828e84fsvenpanne@chromium.org void IsObjectNameType(Register object, 9059faefa4670e0c454c6e56bb87b4410d73828e84fsvenpanne@chromium.org Register scratch, 9069faefa4670e0c454c6e56bb87b4410d73828e84fsvenpanne@chromium.org Label* fail); 9079faefa4670e0c454c6e56bb87b4410d73828e84fsvenpanne@chromium.org 908ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org#ifdef ENABLE_DEBUGGER_SUPPORT 9097516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // ------------------------------------------------------------------------- 91083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Debugger Support. 911ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org 912ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org void DebugBreak(); 913ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org#endif 914ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org 915ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org 9167516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // ------------------------------------------------------------------------- 91783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Exception handling. 9185c838251403b0be9a882540f1922577abba4c872ager@chromium.org 9195c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Push a new try handler and link into try handler chain. 92078d1ad443658709d6c27809001a0e71efd8b898fyangguo@chromium.org void PushTryHandler(StackHandler::Kind kind, int handler_index); 9215c838251403b0be9a882540f1922577abba4c872ager@chromium.org 9225c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Unlink the stack handler on top of the stack from the try handler chain. 9235c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Must preserve the result register. 9245c838251403b0be9a882540f1922577abba4c872ager@chromium.org void PopTryHandler(); 9255c838251403b0be9a882540f1922577abba4c872ager@chromium.org 92665a89c29ac6da09f5726f48f68eae9587b0e562aulan@chromium.org // Passes thrown value to the handler of top of the try handler chain. 9277304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org void Throw(Register value); 9287304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org 9297304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org // Propagates an uncatchable exception to the top of the current JS stack's 9307304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org // handler chain. 93165a89c29ac6da09f5726f48f68eae9587b0e562aulan@chromium.org void ThrowUncatchable(Register value); 9327304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org 9337516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Copies a fixed number of fields of heap objects from src to dst. 9347516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CopyFields(Register dst, Register src, RegList temps, int field_count); 9355c838251403b0be9a882540f1922577abba4c872ager@chromium.org 93683a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Copies a number of bytes from src to dst. All registers are clobbered. On 93783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // exit src and dst will point to the place just after where the last byte was 93883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // read or written and length will be zero. 93983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void CopyBytes(Register src, 94083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register dst, 94183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register length, 94283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register scratch); 94383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 944b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Initialize fields with filler values. Fields starting at |start_offset| 945b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // not including end_offset are overwritten with the value in |filler|. At 946b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // the end the loop, |start_offset| takes the value of |end_offset|. 947b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void InitializeFieldsWithFiller(Register start_offset, 948b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register end_offset, 949b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register filler); 950b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 9517516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // ------------------------------------------------------------------------- 9525c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Support functions. 9535c838251403b0be9a882540f1922577abba4c872ager@chromium.org 9547516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Try to get function prototype of a function and puts the value in 9557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // the result register. Checks that the function really is a 9567516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // function and jumps to the miss label if the fast checks fail. The 9577516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // function register will be untouched; the other registers may be 9587516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // clobbered. 9597516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void TryGetFunctionPrototype(Register function, 9607516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register result, 9617516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 962394dbcf9009cf5203b6d85e8b515fcff072040f3erik.corry@gmail.com Label* miss, 963394dbcf9009cf5203b6d85e8b515fcff072040f3erik.corry@gmail.com bool miss_on_bound_function = false); 9647516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 9655d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org void GetObjectType(Register function, 9665d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org Register map, 9675d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org Register type_reg); 9685d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 969d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com // Check if a map for a JSObject indicates that the object has fast elements. 970d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com // Jump to the specified label if it does not. 971d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com void CheckFastElements(Register map, 972d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com Register scratch, 973d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com Label* fail); 974d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com 975b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Check if a map for a JSObject indicates that the object can have both smi 976b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // and HeapObject elements. Jump to the specified label if it does not. 977b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void CheckFastObjectElements(Register map, 978b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch, 979b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Label* fail); 980b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 981b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Check if a map for a JSObject indicates that the object has fast smi only 982b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // elements. Jump to the specified label if it does not. 983830d30c478be03b0ac560f4002833ab141e41effsvenpanne@chromium.org void CheckFastSmiElements(Register map, 984830d30c478be03b0ac560f4002833ab141e41effsvenpanne@chromium.org Register scratch, 985830d30c478be03b0ac560f4002833ab141e41effsvenpanne@chromium.org Label* fail); 986b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 987b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Check to see if maybe_number can be stored as a double in 988b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // FastDoubleElements. If it can, store it at the index specified by key in 9892c067b150f65db3e076b6b5a813e7f6f2492f770rossberg@chromium.org // the FastDoubleElements array elements. Otherwise jump to fail, in which 9902c067b150f65db3e076b6b5a813e7f6f2492f770rossberg@chromium.org // case scratch2, scratch3 and scratch4 are unmodified. 991b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void StoreNumberToDoubleElements(Register value_reg, 992b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register key_reg, 99389e18f5599cb4cd462cb1ed324addd7388fb4d60rossberg@chromium.org // All regs below here overwritten. 994b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register elements_reg, 995b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch1, 996b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch2, 997b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch3, 998b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch4, 9998e8d8825f97138de12985f8e0d3163074dff5258ulan@chromium.org Label* fail, 10008e8d8825f97138de12985f8e0d3163074dff5258ulan@chromium.org int elements_offset = 0); 1001b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 100205ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org // Compare an object's map with the specified map and its transitioned 100305ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org // elements maps if mode is ALLOW_ELEMENT_TRANSITION_MAPS. Jumps to 100405ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org // "branch_to" if the result of the comparison is "cond". If multiple map 100505ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org // compares are required, the compare sequences branches to early_success. 100605ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org void CompareMapAndBranch(Register obj, 100705ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org Register scratch, 100805ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org Handle<Map> map, 100905ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org Label* early_success, 101005ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org Condition cond, 1011a53e8e03bcb23716d1025de362626f90f00da892svenpanne@chromium.org Label* branch_to); 101205ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org 10137028c05c1c71b9d5c5fe1bca01f2461d17a2dda7mmassi@chromium.org // As above, but the map of the object is already loaded into the register 10147028c05c1c71b9d5c5fe1bca01f2461d17a2dda7mmassi@chromium.org // which is preserved by the code generated. 10157028c05c1c71b9d5c5fe1bca01f2461d17a2dda7mmassi@chromium.org void CompareMapAndBranch(Register obj_map, 10167028c05c1c71b9d5c5fe1bca01f2461d17a2dda7mmassi@chromium.org Handle<Map> map, 10177028c05c1c71b9d5c5fe1bca01f2461d17a2dda7mmassi@chromium.org Label* early_success, 10187028c05c1c71b9d5c5fe1bca01f2461d17a2dda7mmassi@chromium.org Condition cond, 1019a53e8e03bcb23716d1025de362626f90f00da892svenpanne@chromium.org Label* branch_to); 10207028c05c1c71b9d5c5fe1bca01f2461d17a2dda7mmassi@chromium.org 102105ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org // Check if the map of an object is equal to a specified map and branch to 102205ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org // label if not. Skip the smi check if not required (object is known to be a 102305ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org // heap object). If mode is ALLOW_ELEMENT_TRANSITION_MAPS, then also match 102405ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org // against maps that are ElementsKind transition maps of the specificed map. 10257516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CheckMap(Register obj, 10267516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 10277516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Handle<Map> map, 10287516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* fail, 1029a53e8e03bcb23716d1025de362626f90f00da892svenpanne@chromium.org SmiCheckType smi_check_type); 103005ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org 10317516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 10327516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CheckMap(Register obj, 10337516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 10347516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Heap::RootListIndex index, 10357516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* fail, 103640cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org SmiCheckType smi_check_type); 103740cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org 103840cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // Check if the map of an object is equal to a specified map and branch to a 103940cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // specified target if equal. Skip the smi check if not required (object is 104040cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // known to be a heap object) 104140cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void DispatchMap(Register obj, 104240cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org Register scratch, 104340cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org Handle<Map> map, 104440cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org Handle<Code> success, 104540cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org SmiCheckType smi_check_type); 10465d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 10475d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org // Generates code for reporting that an illegal operation has 10485d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org // occurred. 10495d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org void IllegalOperation(int num_arguments); 10505d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 1051c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 1052c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Load and check the instance type of an object for being a string. 1053c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Loads the type into the second argument register. 1054c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Returns a condition that will be enabled if the object was a string. 1055c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Condition IsObjectStringType(Register obj, 1056c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Register type, 1057c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Register result) { 1058c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com lw(type, FieldMemOperand(obj, HeapObject::kMapOffset)); 1059c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com lbu(type, FieldMemOperand(type, Map::kInstanceTypeOffset)); 1060c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com And(type, type, Operand(kIsNotStringMask)); 1061c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com ASSERT_EQ(0, kStringTag); 1062c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com return eq; 1063c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com } 1064c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 1065c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 10667516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Picks out an array index from the hash field. 10677516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Register use: 10687516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // hash - holds the index's hash. Clobbered. 10697516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // index - holds the overwritten index on exit. 10707516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void IndexFromHash(Register hash, Register index); 10717516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 107283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Get the number of least significant bits from a register. 107383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void GetLeastBitsFromSmi(Register dst, Register src, int num_least_bits); 107483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void GetLeastBitsFromInt32(Register dst, Register src, int mun_least_bits); 107583a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 10767516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Load the value of a number object into a FPU double register. If the 10777516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // object is not a number a jump to the label not_number is performed 10787516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // and the FPU double register is unchanged. 10797516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void ObjectToDoubleFPURegister( 10807516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register object, 10817516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org FPURegister value, 10827516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 10837516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 10847516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register heap_number_map, 10857516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* not_number, 10867516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org ObjectToDoubleFlags flags = NO_OBJECT_TO_DOUBLE_FLAGS); 10877516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 10887516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Load the value of a smi object into a FPU double register. The register 10897516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // scratch1 can be the same register as smi in which case smi will hold the 10907516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // untagged value afterwards. 10917516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void SmiToDoubleFPURegister(Register smi, 10927516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org FPURegister value, 10937516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1); 10947516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 10957516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // ------------------------------------------------------------------------- 109683a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Overflow handling functions. 109783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Usage: first call the appropriate arithmetic function, then call one of the 109883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // jump functions with the overflow_dst register as the second parameter. 109983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 110083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void AdduAndCheckForOverflow(Register dst, 110183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register left, 110283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register right, 110383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register overflow_dst, 110483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register scratch = at); 110583a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 110683a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void SubuAndCheckForOverflow(Register dst, 110783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register left, 110883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register right, 110983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register overflow_dst, 111083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register scratch = at); 111183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 111283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void BranchOnOverflow(Label* label, 111383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register overflow_check, 111483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org BranchDelaySlot bd = PROTECT) { 111583a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Branch(label, lt, overflow_check, Operand(zero_reg), bd); 111683a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org } 111783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 111883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void BranchOnNoOverflow(Label* label, 111983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Register overflow_check, 112083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org BranchDelaySlot bd = PROTECT) { 112183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Branch(label, ge, overflow_check, Operand(zero_reg), bd); 112283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org } 112383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 112483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void RetOnOverflow(Register overflow_check, BranchDelaySlot bd = PROTECT) { 112583a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Ret(lt, overflow_check, Operand(zero_reg), bd); 112683a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org } 112783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 112883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void RetOnNoOverflow(Register overflow_check, BranchDelaySlot bd = PROTECT) { 112983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Ret(ge, overflow_check, Operand(zero_reg), bd); 113083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org } 113183a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 113283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // ------------------------------------------------------------------------- 113383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Runtime calls. 11345c838251403b0be9a882540f1922577abba4c872ager@chromium.org 11356ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org // See comments at the beginning of CEntryStub::Generate. 11366ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org inline void PrepareCEntryArgs(int num_args) { 11376ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org li(s0, num_args); 11386ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org li(s1, (num_args - 1) * kPointerSize); 11396ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org } 11406ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org 11416ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org inline void PrepareCEntryFunction(const ExternalReference& ref) { 11426ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org li(s2, Operand(ref)); 11436ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org } 11446ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org 11455c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Call a code stub. 11466ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org void CallStub(CodeStub* stub, 114759297c735ad2a41156ae9c723a39ff259ad061e0jkummerow@chromium.org TypeFeedbackId ast_id = TypeFeedbackId::None(), 11486ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org Condition cond = cc_always, 11496ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org Register r1 = zero_reg, 11506ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org const Operand& r2 = Operand(zero_reg), 11516ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org BranchDelaySlot bd = PROTECT); 11525c838251403b0be9a882540f1922577abba4c872ager@chromium.org 11537516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Tail call a code stub (jump). 11547516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void TailCallStub(CodeStub* stub); 11557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 11567516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CallJSExitStub(CodeStub* stub); 11575c838251403b0be9a882540f1922577abba4c872ager@chromium.org 11585c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Call a runtime routine. 11597516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CallRuntime(const Runtime::Function* f, int num_arguments); 11607516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CallRuntimeSaveDoubles(Runtime::FunctionId id); 11615c838251403b0be9a882540f1922577abba4c872ager@chromium.org 11625c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Convenience function: Same as above, but takes the fid instead. 11635c838251403b0be9a882540f1922577abba4c872ager@chromium.org void CallRuntime(Runtime::FunctionId fid, int num_arguments); 11645c838251403b0be9a882540f1922577abba4c872ager@chromium.org 11657516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Convenience function: call an external reference. 11667516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CallExternalReference(const ExternalReference& ext, 11676ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org int num_arguments, 11686ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org BranchDelaySlot bd = PROTECT); 11697516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 11705c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Tail call of a runtime routine (jump). 1171ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org // Like JumpToExternalReference, but also takes care of passing the number 11725c838251403b0be9a882540f1922577abba4c872ager@chromium.org // of parameters. 1173ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org void TailCallExternalReference(const ExternalReference& ext, 1174ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org int num_arguments, 1175ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org int result_size); 1176ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org 1177ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org // Convenience function: tail call a runtime routine (jump). 1178ce5e87bd905d592a8bd612b3dedf7a994177c13aager@chromium.org void TailCallRuntime(Runtime::FunctionId fid, 11795c838251403b0be9a882540f1922577abba4c872ager@chromium.org int num_arguments, 11805c838251403b0be9a882540f1922577abba4c872ager@chromium.org int result_size); 11815c838251403b0be9a882540f1922577abba4c872ager@chromium.org 1182c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int CalculateStackPassedWords(int num_reg_arguments, 1183c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int num_double_arguments); 1184c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 11857516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Before calling a C-function from generated code, align arguments on stack 11867516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // and add space for the four mips argument slots. 11877516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // After aligning the frame, non-register arguments must be stored on the 11887516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // stack, after the argument-slots using helper: CFunctionArgumentOperand(). 11897516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // The argument count assumes all arguments are word sized. 11907516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Some compilers/platforms require the stack to be aligned when calling 11917516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // C++ code. 11927516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Needs a scratch register to do some arithmetic. This register will be 11937516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // trashed. 1194c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void PrepareCallCFunction(int num_reg_arguments, 1195c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int num_double_registers, 1196c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Register scratch); 1197c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void PrepareCallCFunction(int num_reg_arguments, 1198c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Register scratch); 11997516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 12007516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Arguments 1-4 are placed in registers a0 thru a3 respectively. 12017516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Arguments 5..n are stored to stack using following: 12027516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // sw(t0, CFunctionArgumentOperand(5)); 12037516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 12047516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Calls a C function and cleans up the space for arguments allocated 12057516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // by PrepareCallCFunction. The called function is not allowed to trigger a 12067516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // garbage collection, since that might move the code and invalidate the 12077516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // return address (unless this is somehow accounted for by the called 12087516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // function). 12097516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CallCFunction(ExternalReference function, int num_arguments); 1210b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void CallCFunction(Register function, int num_arguments); 1211c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void CallCFunction(ExternalReference function, 1212c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int num_reg_arguments, 1213c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int num_double_arguments); 1214b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void CallCFunction(Register function, 1215c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int num_reg_arguments, 1216c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int num_double_arguments); 121783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void GetCFunctionDoubleResult(const DoubleRegister dst); 121883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 121940cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // There are two ways of passing double arguments on MIPS, depending on 122040cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // whether soft or hard floating point ABI is used. These functions 122140cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // abstract parameter passing for the three different ways we call 122240cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // C functions from generated code. 122340cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void SetCallCDoubleArguments(DoubleRegister dreg); 122440cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void SetCallCDoubleArguments(DoubleRegister dreg1, DoubleRegister dreg2); 122540cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org void SetCallCDoubleArguments(DoubleRegister dreg, Register reg); 122640cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org 1227c3b37129d6387b2db313f9100256d2d5f60dd9a8jkummerow@chromium.org // Calls an API function. Allocates HandleScope, extracts returned value 1228c3b37129d6387b2db313f9100256d2d5f60dd9a8jkummerow@chromium.org // from handle and propagates exceptions. Restores context. stack_space 12292efb900e7350b14be905abdeab077f3a64c583cfulan@chromium.org // - space to be unwound on exit (includes the call JS arguments space and 1230c3b37129d6387b2db313f9100256d2d5f60dd9a8jkummerow@chromium.org // the additional space allocated for the fast call). 1231bf9432e3965b385e2e8df3701b710c105f5b3eb7ulan@chromium.org void CallApiFunctionAndReturn(ExternalReference function, 1232b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org Address function_address, 1233b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org ExternalReference thunk_ref, 1234b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org Register thunk_last_arg, 1235bf9432e3965b385e2e8df3701b710c105f5b3eb7ulan@chromium.org int stack_space, 1236bf9432e3965b385e2e8df3701b710c105f5b3eb7ulan@chromium.org bool returns_handle, 1237bf9432e3965b385e2e8df3701b710c105f5b3eb7ulan@chromium.org int return_value_offset_from_fp); 12387304bcac06a6a63b9f3dcebac2eeceada87ca146vegorov@chromium.org 12395c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Jump to the builtin routine. 12406ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org void JumpToExternalReference(const ExternalReference& builtin, 12416ff651481ed0a881f176f6d55e26679ca359792bulan@chromium.org BranchDelaySlot bd = PROTECT); 12425c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12435c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Invoke specified builtin JavaScript function. Adds an entry to 12445c838251403b0be9a882540f1922577abba4c872ager@chromium.org // the unresolved list if the name does not resolve. 12457516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void InvokeBuiltin(Builtins::JavaScript id, 12468e8294a88dc7d58f579aee0ba08c19fc8a616e2dsgjesse@chromium.org InvokeFlag flag, 1247fb144a0716afe7ab8bf245f2391a9e53b3db3c89fschneider@chromium.org const CallWrapper& call_wrapper = NullCallWrapper()); 12485c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12495c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Store the code object for the given builtin in the target register and 12507516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // setup the function in a1. 12515c838251403b0be9a882540f1922577abba4c872ager@chromium.org void GetBuiltinEntry(Register target, Builtins::JavaScript id); 12525c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12537516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Store the function for the given builtin in the target register. 12547516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void GetBuiltinFunction(Register target, Builtins::JavaScript id); 12557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 12565c838251403b0be9a882540f1922577abba4c872ager@chromium.org struct Unresolved { 12575c838251403b0be9a882540f1922577abba4c872ager@chromium.org int pc; 125883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org uint32_t flags; // See Bootstrapper::FixupFlags decoders/encoders. 12595c838251403b0be9a882540f1922577abba4c872ager@chromium.org const char* name; 12605c838251403b0be9a882540f1922577abba4c872ager@chromium.org }; 12615c838251403b0be9a882540f1922577abba4c872ager@chromium.org 126283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org Handle<Object> CodeObject() { 126383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org ASSERT(!code_object_.is_null()); 126483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org return code_object_; 126583a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org } 12665c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12677516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // ------------------------------------------------------------------------- 126883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // StatsCounter support. 12695c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12705c838251403b0be9a882540f1922577abba4c872ager@chromium.org void SetCounter(StatsCounter* counter, int value, 12715c838251403b0be9a882540f1922577abba4c872ager@chromium.org Register scratch1, Register scratch2); 12725c838251403b0be9a882540f1922577abba4c872ager@chromium.org void IncrementCounter(StatsCounter* counter, int value, 12735c838251403b0be9a882540f1922577abba4c872ager@chromium.org Register scratch1, Register scratch2); 12745c838251403b0be9a882540f1922577abba4c872ager@chromium.org void DecrementCounter(StatsCounter* counter, int value, 12755c838251403b0be9a882540f1922577abba4c872ager@chromium.org Register scratch1, Register scratch2); 12765c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12775c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12787516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // ------------------------------------------------------------------------- 127983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Debugging. 12805c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12815c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Calls Abort(msg) if the condition cc is not satisfied. 12825c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Use --debug_code to enable. 1283594006017e46d82ed7146611dc12c20e3c509c7ddanno@chromium.org void Assert(Condition cc, BailoutReason reason, Register rs, Operand rt); 12847516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void AssertRegisterIsRoot(Register reg, Heap::RootListIndex index); 12857516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void AssertFastElements(Register elements); 12865c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12875c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Like Assert(), but always enabled. 1288594006017e46d82ed7146611dc12c20e3c509c7ddanno@chromium.org void Check(Condition cc, BailoutReason reason, Register rs, Operand rt); 12895c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12905c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Print a message to stdout and abort execution. 1291594006017e46d82ed7146611dc12c20e3c509c7ddanno@chromium.org void Abort(BailoutReason msg); 12925c838251403b0be9a882540f1922577abba4c872ager@chromium.org 12935c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Verify restrictions about code generated in stubs. 12945c838251403b0be9a882540f1922577abba4c872ager@chromium.org void set_generating_stub(bool value) { generating_stub_ = value; } 12955c838251403b0be9a882540f1922577abba4c872ager@chromium.org bool generating_stub() { return generating_stub_; } 12965c838251403b0be9a882540f1922577abba4c872ager@chromium.org void set_allow_stub_calls(bool value) { allow_stub_calls_ = value; } 12975c838251403b0be9a882540f1922577abba4c872ager@chromium.org bool allow_stub_calls() { return allow_stub_calls_; } 1298c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void set_has_frame(bool value) { has_frame_ = value; } 1299c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com bool has_frame() { return has_frame_; } 1300c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com inline bool AllowThisStubCall(CodeStub* stub); 13015c838251403b0be9a882540f1922577abba4c872ager@chromium.org 13027516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // --------------------------------------------------------------------------- 130383a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Number utilities. 13047516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13057516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Check whether the value of reg is a power of two and not zero. If not 13067516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // control continues at the label not_power_of_two. If reg is a power of two 13077516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // the register scratch contains the value of (reg - 1) when control falls 13087516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // through. 13097516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void JumpIfNotPowerOfTwoOrZero(Register reg, 13107516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 13117516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* not_power_of_two_or_zero); 13127516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13137516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // ------------------------------------------------------------------------- 131483a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Smi utilities. 13157516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13167516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void SmiTag(Register reg) { 13177516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Addu(reg, reg, reg); 13187516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 13197516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 1320c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Test for overflow < 0: use BranchOnOverflow() or BranchOnNoOverflow(). 1321fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org void SmiTagCheckOverflow(Register reg, Register overflow); 1322fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org void SmiTagCheckOverflow(Register dst, Register src, Register overflow); 1323c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 13247516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void SmiTag(Register dst, Register src) { 13257516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Addu(dst, src, src); 13267516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 13277516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13287516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void SmiUntag(Register reg) { 13297516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sra(reg, reg, kSmiTagSize); 13307516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 13317516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13327516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void SmiUntag(Register dst, Register src) { 13337516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org sra(dst, src, kSmiTagSize); 13347516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org } 13357516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 1336fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org // Untag the source value into destination and jump if source is a smi. 1337fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org // Souce and destination can be the same register. 1338fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org void UntagAndJumpIfSmi(Register dst, Register src, Label* smi_case); 1339fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org 1340fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org // Untag the source value into destination and jump if source is not a smi. 1341fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org // Souce and destination can be the same register. 1342fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org void UntagAndJumpIfNotSmi(Register dst, Register src, Label* non_smi_case); 1343fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org 13447516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Jump the register contains a smi. 1345fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org void JumpIfSmi(Register value, 1346fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org Label* smi_label, 1347fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org Register scratch = at, 1348fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org BranchDelaySlot bd = PROTECT); 13497516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13507516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Jump if the register contains a non-smi. 1351fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org void JumpIfNotSmi(Register value, 1352fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org Label* not_smi_label, 1353fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org Register scratch = at, 1354fa458e413c3e5b8d479e49258d060b7bb4567c57danno@chromium.org BranchDelaySlot bd = PROTECT); 13557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13567516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Jump if either of the registers contain a non-smi. 13577516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void JumpIfNotBothSmi(Register reg1, Register reg2, Label* on_not_both_smi); 13587516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Jump if either of the registers contain a smi. 13597516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void JumpIfEitherSmi(Register reg1, Register reg2, Label* on_either_smi); 13607516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 1361c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org // Abort execution if argument is a smi, enabled via --debug-code. 1362c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org void AssertNotSmi(Register object); 1363c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org void AssertSmi(Register object); 1364c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org 1365c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org // Abort execution if argument is not a string, enabled via --debug-code. 1366c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org void AssertString(Register object); 1367c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org 13689faefa4670e0c454c6e56bb87b4410d73828e84fsvenpanne@chromium.org // Abort execution if argument is not a name, enabled via --debug-code. 13699faefa4670e0c454c6e56bb87b4410d73828e84fsvenpanne@chromium.org void AssertName(Register object); 13709faefa4670e0c454c6e56bb87b4410d73828e84fsvenpanne@chromium.org 1371c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org // Abort execution if argument is not the root value with the given index, 1372c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org // enabled via --debug-code. 1373c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org void AssertRootValue(Register src, 1374c859c4f83f6ec3e010213dbbe447cc1f927d01c5svenpanne@chromium.org Heap::RootListIndex root_value_index, 1375594006017e46d82ed7146611dc12c20e3c509c7ddanno@chromium.org BailoutReason reason); 13767516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13777516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // --------------------------------------------------------------------------- 137883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // HeapNumber utilities. 13797516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13807516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void JumpIfNotHeapNumber(Register object, 13817516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register heap_number_map, 13827516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 13837516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* on_not_heap_number); 13847516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13857516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // ------------------------------------------------------------------------- 138683a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // String utilities. 13877516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13887516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Checks if both instance types are sequential ASCII strings and jumps to 13897516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // label if either is not. 13907516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void JumpIfBothInstanceTypesAreNotSequentialAscii( 13917516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register first_object_instance_type, 13927516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register second_object_instance_type, 13937516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 13947516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 13957516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* failure); 13967516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 13977516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Check if instance type is sequential ASCII string and jump to label if 13987516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // it is not. 13997516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void JumpIfInstanceTypeIsNotSequentialAscii(Register type, 14007516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch, 14017516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* failure); 14027516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 14031510d58cbcf57c82a10e7d390bfe21a7ae68ba43mstarzinger@chromium.org void JumpIfNotUniqueName(Register reg, Label* not_unique_name); 14041510d58cbcf57c82a10e7d390bfe21a7ae68ba43mstarzinger@chromium.org 14057516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Test that both first and second are sequential ASCII strings. 14067516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Assume that they are non-smis. 14077516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void JumpIfNonSmisNotBothSequentialAsciiStrings(Register first, 14087516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register second, 14097516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 14107516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 14117516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* failure); 14127516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 14137516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Test that both first and second are sequential ASCII strings. 14147516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Check that they are non-smis. 14157516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void JumpIfNotBothSequentialAsciiStrings(Register first, 14167516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register second, 14177516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 14187516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2, 14197516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Label* failure); 14207516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 1421c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void ClampUint8(Register output_reg, Register input_reg); 1422c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 1423c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void ClampDoubleToUint8(Register result_reg, 1424c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com DoubleRegister input_reg, 1425c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com DoubleRegister temp_double_reg); 1426c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 1427c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 142889e18f5599cb4cd462cb1ed324addd7388fb4d60rossberg@chromium.org void LoadInstanceDescriptors(Register map, Register descriptors); 142978502a9310f9ff7ecb5377453c4e16d091c93676jkummerow@chromium.org void EnumLength(Register dst, Register map); 143033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org void NumberOfOwnDescriptors(Register dst, Register map); 143133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org 143233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org template<typename Field> 143333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org void DecodeField(Register reg) { 143433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org static const int shift = Field::kShift; 143533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org static const int mask = (Field::kMask >> shift) << kSmiTagSize; 143633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org srl(reg, reg, shift); 143733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org And(reg, reg, Operand(mask)); 143833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org } 1439c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 1440c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Activation support. 1441c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void EnterFrame(StackFrame::Type type); 1442c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void LeaveFrame(StackFrame::Type type); 1443c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 1444c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com // Patch the relocated value (lui/ori pair). 1445c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com void PatchRelocatedValue(Register li_location, 1446c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Register scratch, 1447c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com Register new_value); 144805ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org // Get the relocatad value (loaded data) from the lui/ori pair. 144905ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org void GetRelocatedValue(Register li_location, 145005ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org Register value, 145105ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org Register scratch); 1452c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com 1453812308e1488cd8261e4dbbda1d8022642d522b9bulan@chromium.org // Expects object in a0 and returns map with validated enum cache 1454812308e1488cd8261e4dbbda1d8022642d522b9bulan@chromium.org // in a0. Assumes that any other register can be used as a scratch. 1455812308e1488cd8261e4dbbda1d8022642d522b9bulan@chromium.org void CheckEnumCache(Register null_value, Label* call_runtime); 1456812308e1488cd8261e4dbbda1d8022642d522b9bulan@chromium.org 1457ba72ec861b69b67139c93fc6dd56f4a73c9b3135jkummerow@chromium.org // AllocationMemento support. Arrays may have an associated 1458ba72ec861b69b67139c93fc6dd56f4a73c9b3135jkummerow@chromium.org // AllocationMemento object that can be checked for in order to pretransition 145959297c735ad2a41156ae9c723a39ff259ad061e0jkummerow@chromium.org // to another type. 146059297c735ad2a41156ae9c723a39ff259ad061e0jkummerow@chromium.org // On entry, receiver_reg should point to the array object. 146159297c735ad2a41156ae9c723a39ff259ad061e0jkummerow@chromium.org // scratch_reg gets clobbered. 146259297c735ad2a41156ae9c723a39ff259ad061e0jkummerow@chromium.org // If allocation info is present, jump to allocation_info_present 1463ba72ec861b69b67139c93fc6dd56f4a73c9b3135jkummerow@chromium.org void TestJSArrayForAllocationMemento(Register receiver_reg, 1464ba72ec861b69b67139c93fc6dd56f4a73c9b3135jkummerow@chromium.org Register scratch_reg, 1465ba72ec861b69b67139c93fc6dd56f4a73c9b3135jkummerow@chromium.org Condition cond, 1466ba72ec861b69b67139c93fc6dd56f4a73c9b3135jkummerow@chromium.org Label* allocation_memento_present); 146759297c735ad2a41156ae9c723a39ff259ad061e0jkummerow@chromium.org 14685c838251403b0be9a882540f1922577abba4c872ager@chromium.org private: 14697516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void CallCFunctionHelper(Register function, 1470c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int num_reg_arguments, 1471c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com int num_double_arguments); 14725d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 14733cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void BranchShort(int16_t offset, BranchDelaySlot bdslot = PROTECT); 14743cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void BranchShort(int16_t offset, Condition cond, Register rs, 14753cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org const Operand& rt, 14763cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org BranchDelaySlot bdslot = PROTECT); 14773cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void BranchShort(Label* L, BranchDelaySlot bdslot = PROTECT); 14783cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void BranchShort(Label* L, Condition cond, Register rs, 14793cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org const Operand& rt, 14803cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org BranchDelaySlot bdslot = PROTECT); 14813cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void BranchAndLinkShort(int16_t offset, BranchDelaySlot bdslot = PROTECT); 14823cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void BranchAndLinkShort(int16_t offset, Condition cond, Register rs, 14833cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org const Operand& rt, 14843cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org BranchDelaySlot bdslot = PROTECT); 14853cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void BranchAndLinkShort(Label* L, BranchDelaySlot bdslot = PROTECT); 14863cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void BranchAndLinkShort(Label* L, Condition cond, Register rs, 14873cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org const Operand& rt, 14883cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org BranchDelaySlot bdslot = PROTECT); 14893cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void J(Label* L, BranchDelaySlot bdslot); 14903cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void Jr(Label* L, BranchDelaySlot bdslot); 14913cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org void Jalr(Label* L, BranchDelaySlot bdslot); 14923cf47318da216c319ecf1f7a59de23455f117197vegorov@chromium.org 14935d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org // Helper functions for generating invokes. 14945d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org void InvokePrologue(const ParameterCount& expected, 14955d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org const ParameterCount& actual, 14965d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org Handle<Code> code_constant, 14975d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org Register code_reg, 14985d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org Label* done, 149905ed9ddc6ff3a1ab3983c50d378cddfa257869b6jkummerow@chromium.org bool* definitely_mismatches, 15007516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org InvokeFlag flag, 1501d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com const CallWrapper& call_wrapper, 1502d6076d96a1411932548838e5960b594564264010erik.corry@gmail.com CallKind call_kind); 15035d8f0e6e7b477f422e3064bdf0dd5f2a23f75544kmillikin@chromium.org 15045c838251403b0be9a882540f1922577abba4c872ager@chromium.org // Get the code for the given builtin. Returns if able to resolve 15055c838251403b0be9a882540f1922577abba4c872ager@chromium.org // the function in the 'resolved' flag. 15065c838251403b0be9a882540f1922577abba4c872ager@chromium.org Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved); 15075c838251403b0be9a882540f1922577abba4c872ager@chromium.org 15087516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void InitializeNewString(Register string, 15097516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register length, 15107516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Heap::RootListIndex map_index, 15117516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch1, 15127516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Register scratch2); 15137516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 1514b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Helper for implementing JumpIfNotInNewSpace and JumpIfInNewSpace. 1515b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org void InNewSpace(Register object, 1516b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register scratch, 1517b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Condition cond, // eq for new space, ne otherwise. 1518b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Label* branch); 1519b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 1520b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // Helper for finding the mark bits for an address. Afterwards, the 1521b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // bitmap register points at the word with the mark bits and the mask 1522b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org // the position of the first bit. Leaves addr_reg unchanged. 1523b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org inline void GetMarkBits(Register addr_reg, 1524b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register bitmap_reg, 1525b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org Register mask_reg); 1526b4b2aa69a9f12525fca190287f47a66d7bdcb3aerossberg@chromium.org 1527f8c6bd531c2a8ba717cb8d316206347b05acebedmstarzinger@chromium.org // Helper for throwing exceptions. Compute a handler address and jump to 1528f8c6bd531c2a8ba717cb8d316206347b05acebedmstarzinger@chromium.org // it. See the implementation for register usage. 1529f8c6bd531c2a8ba717cb8d316206347b05acebedmstarzinger@chromium.org void JumpToHandlerEntry(); 1530f8c6bd531c2a8ba717cb8d316206347b05acebedmstarzinger@chromium.org 153140cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // Compute memory operands for safepoint stack slots. 153240cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org static int SafepointRegisterStackIndex(int reg_code); 153340cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org MemOperand SafepointRegisterSlot(Register reg); 153440cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org MemOperand SafepointRegistersAndDoublesSlot(Register reg); 15357516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 15367516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org bool generating_stub_; 15377516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org bool allow_stub_calls_; 1538c3b670ff19220959730d7886892bc4beb95d2ebaerik.corry@gmail.com bool has_frame_; 15397516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // This handle will be patched with the code object on installation. 15407516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org Handle<Object> code_object_; 154140cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org 154259297c735ad2a41156ae9c723a39ff259ad061e0jkummerow@chromium.org // Needs access to SafepointRegisterStackIndex for compiled frame 154340cb878ef373bea9bdf7998829891e4096751dd0danno@chromium.org // traversal. 154459297c735ad2a41156ae9c723a39ff259ad061e0jkummerow@chromium.org friend class StandardFrame; 15457516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org}; 15467516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 15477516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 15487516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// The code patcher is used to patch (typically) small parts of code e.g. for 15497516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// debugging and other types of instrumentation. When using the code patcher 15507516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// the exact number of bytes specified must be emitted. It is not legal to emit 15517516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// relocation information. If any of these constraints are violated it causes 15527516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org// an assertion to fail. 15537516f05132429850aa326421ed3e25f23b4c071blrn@chromium.orgclass CodePatcher { 15547516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org public: 15557516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org CodePatcher(byte* address, int instructions); 15567516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org virtual ~CodePatcher(); 15577516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 15587516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Macro assembler to emit code. 15597516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org MacroAssembler* masm() { return &masm_; } 15607516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 15617516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Emit an instruction directly. 156283a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void Emit(Instr instr); 15637516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 15647516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org // Emit an address directly. 15657516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org void Emit(Address addr); 15667516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 156783a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // Change the condition part of an instruction leaving the rest of the current 156883a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org // instruction unchanged. 156983a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org void ChangeBranchCondition(Condition cond); 157083a4728861129dc263ded92157f3e6389f851f19karlklose@chromium.org 15717516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org private: 15727516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org byte* address_; // The address of the code being patched. 15737516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org int size_; // Number of bytes of the expected patch size. 15747516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org MacroAssembler masm_; // Macro assembler used to generate the code. 15757516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org}; 15767516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 15777516f05132429850aa326421ed3e25f23b4c071blrn@chromium.org 15785c838251403b0be9a882540f1922577abba4c872ager@chromium.org 15795c838251403b0be9a882540f1922577abba4c872ager@chromium.org#ifdef GENERATED_CODE_COVERAGE 15805c838251403b0be9a882540f1922577abba4c872ager@chromium.org#define CODE_COVERAGE_STRINGIFY(x) #x 15815c838251403b0be9a882540f1922577abba4c872ager@chromium.org#define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x) 15825c838251403b0be9a882540f1922577abba4c872ager@chromium.org#define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) 15835c838251403b0be9a882540f1922577abba4c872ager@chromium.org#define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> 15845c838251403b0be9a882540f1922577abba4c872ager@chromium.org#else 15855c838251403b0be9a882540f1922577abba4c872ager@chromium.org#define ACCESS_MASM(masm) masm-> 15865c838251403b0be9a882540f1922577abba4c872ager@chromium.org#endif 15875c838251403b0be9a882540f1922577abba4c872ager@chromium.org 15885c838251403b0be9a882540f1922577abba4c872ager@chromium.org} } // namespace v8::internal 15895c838251403b0be9a882540f1922577abba4c872ager@chromium.org 15905c838251403b0be9a882540f1922577abba4c872ager@chromium.org#endif // V8_MIPS_MACRO_ASSEMBLER_MIPS_H_ 1591