368 lines
12 KiB
C++
368 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sts=4 et sw=4 tw=99:
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef jit_BaselineCompiler_h
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#define jit_BaselineCompiler_h
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#include "jit/FixedList.h"
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#if defined(JS_CODEGEN_X86)
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# include "jit/x86/BaselineCompiler-x86.h"
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#elif defined(JS_CODEGEN_X64)
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# include "jit/x64/BaselineCompiler-x64.h"
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#elif defined(JS_CODEGEN_ARM)
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# include "jit/arm/BaselineCompiler-arm.h"
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#elif defined(JS_CODEGEN_ARM64)
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# include "jit/arm64/BaselineCompiler-arm64.h"
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#elif defined(JS_CODEGEN_MIPS32)
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# include "jit/mips32/BaselineCompiler-mips32.h"
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#elif defined(JS_CODEGEN_MIPS64)
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# include "jit/mips64/BaselineCompiler-mips64.h"
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#elif defined(JS_CODEGEN_NONE)
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# include "jit/none/BaselineCompiler-none.h"
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#else
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# error "Unknown architecture!"
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#endif
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namespace js {
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namespace jit {
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#define OPCODE_LIST(_) \
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_(JSOP_NOP) \
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_(JSOP_NOP_DESTRUCTURING) \
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_(JSOP_LABEL) \
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_(JSOP_POP) \
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_(JSOP_POPN) \
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_(JSOP_DUPAT) \
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_(JSOP_ENTERWITH) \
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_(JSOP_LEAVEWITH) \
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_(JSOP_DUP) \
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_(JSOP_DUP2) \
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_(JSOP_SWAP) \
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_(JSOP_PICK) \
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_(JSOP_UNPICK) \
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_(JSOP_GOTO) \
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_(JSOP_IFEQ) \
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_(JSOP_IFNE) \
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_(JSOP_AND) \
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_(JSOP_OR) \
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_(JSOP_NOT) \
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_(JSOP_POS) \
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_(JSOP_LOOPHEAD) \
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_(JSOP_LOOPENTRY) \
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_(JSOP_VOID) \
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_(JSOP_UNDEFINED) \
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_(JSOP_HOLE) \
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_(JSOP_NULL) \
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_(JSOP_TRUE) \
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_(JSOP_FALSE) \
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_(JSOP_ZERO) \
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_(JSOP_ONE) \
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_(JSOP_INT8) \
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_(JSOP_INT32) \
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_(JSOP_UINT16) \
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_(JSOP_UINT24) \
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_(JSOP_DOUBLE) \
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_(JSOP_STRING) \
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_(JSOP_SYMBOL) \
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_(JSOP_OBJECT) \
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_(JSOP_CALLSITEOBJ) \
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_(JSOP_REGEXP) \
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_(JSOP_LAMBDA) \
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_(JSOP_LAMBDA_ARROW) \
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_(JSOP_SETFUNNAME) \
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_(JSOP_BITOR) \
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_(JSOP_BITXOR) \
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_(JSOP_BITAND) \
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_(JSOP_LSH) \
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_(JSOP_RSH) \
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_(JSOP_URSH) \
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_(JSOP_ADD) \
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_(JSOP_SUB) \
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_(JSOP_MUL) \
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_(JSOP_DIV) \
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_(JSOP_MOD) \
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_(JSOP_POW) \
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_(JSOP_LT) \
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_(JSOP_LE) \
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_(JSOP_GT) \
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_(JSOP_GE) \
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_(JSOP_EQ) \
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_(JSOP_NE) \
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_(JSOP_STRICTEQ) \
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_(JSOP_STRICTNE) \
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_(JSOP_CONDSWITCH) \
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_(JSOP_CASE) \
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_(JSOP_DEFAULT) \
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_(JSOP_LINENO) \
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_(JSOP_BITNOT) \
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_(JSOP_NEG) \
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_(JSOP_NEWARRAY) \
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_(JSOP_NEWARRAY_COPYONWRITE) \
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_(JSOP_INITELEM_ARRAY) \
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_(JSOP_NEWOBJECT) \
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_(JSOP_NEWINIT) \
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_(JSOP_INITELEM) \
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_(JSOP_INITELEM_GETTER) \
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_(JSOP_INITELEM_SETTER) \
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_(JSOP_INITELEM_INC) \
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_(JSOP_MUTATEPROTO) \
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_(JSOP_INITPROP) \
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_(JSOP_INITLOCKEDPROP) \
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_(JSOP_INITHIDDENPROP) \
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_(JSOP_INITPROP_GETTER) \
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_(JSOP_INITPROP_SETTER) \
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_(JSOP_ARRAYPUSH) \
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_(JSOP_GETELEM) \
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_(JSOP_SETELEM) \
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_(JSOP_STRICTSETELEM) \
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_(JSOP_CALLELEM) \
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_(JSOP_DELELEM) \
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_(JSOP_STRICTDELELEM) \
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_(JSOP_IN) \
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_(JSOP_GETGNAME) \
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_(JSOP_BINDGNAME) \
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_(JSOP_SETGNAME) \
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_(JSOP_STRICTSETGNAME) \
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_(JSOP_SETNAME) \
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_(JSOP_STRICTSETNAME) \
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_(JSOP_GETPROP) \
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_(JSOP_SETPROP) \
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_(JSOP_STRICTSETPROP) \
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_(JSOP_CALLPROP) \
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_(JSOP_DELPROP) \
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_(JSOP_STRICTDELPROP) \
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_(JSOP_LENGTH) \
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_(JSOP_GETXPROP) \
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_(JSOP_GETALIASEDVAR) \
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_(JSOP_SETALIASEDVAR) \
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_(JSOP_GETNAME) \
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_(JSOP_BINDNAME) \
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_(JSOP_DELNAME) \
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_(JSOP_GETIMPORT) \
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_(JSOP_GETINTRINSIC) \
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_(JSOP_BINDVAR) \
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_(JSOP_DEFVAR) \
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_(JSOP_DEFCONST) \
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_(JSOP_DEFLET) \
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_(JSOP_DEFFUN) \
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_(JSOP_GETLOCAL) \
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_(JSOP_SETLOCAL) \
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_(JSOP_GETARG) \
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_(JSOP_SETARG) \
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_(JSOP_CHECKLEXICAL) \
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_(JSOP_INITLEXICAL) \
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_(JSOP_INITGLEXICAL) \
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_(JSOP_CHECKALIASEDLEXICAL) \
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_(JSOP_INITALIASEDLEXICAL) \
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_(JSOP_UNINITIALIZED) \
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_(JSOP_CALL) \
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_(JSOP_CALL_IGNORES_RV) \
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_(JSOP_CALLITER) \
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_(JSOP_FUNCALL) \
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_(JSOP_FUNAPPLY) \
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_(JSOP_NEW) \
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_(JSOP_EVAL) \
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_(JSOP_STRICTEVAL) \
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_(JSOP_SPREADCALL) \
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_(JSOP_SPREADNEW) \
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_(JSOP_SPREADEVAL) \
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_(JSOP_STRICTSPREADEVAL) \
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_(JSOP_OPTIMIZE_SPREADCALL)\
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_(JSOP_IMPLICITTHIS) \
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_(JSOP_GIMPLICITTHIS) \
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_(JSOP_INSTANCEOF) \
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_(JSOP_TYPEOF) \
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_(JSOP_TYPEOFEXPR) \
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_(JSOP_THROWMSG) \
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_(JSOP_THROW) \
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_(JSOP_THROWING) \
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_(JSOP_TRY) \
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_(JSOP_FINALLY) \
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_(JSOP_GOSUB) \
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_(JSOP_RETSUB) \
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_(JSOP_PUSHLEXICALENV) \
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_(JSOP_POPLEXICALENV) \
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_(JSOP_FRESHENLEXICALENV) \
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_(JSOP_RECREATELEXICALENV) \
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_(JSOP_DEBUGLEAVELEXICALENV) \
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_(JSOP_PUSHVARENV) \
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_(JSOP_POPVARENV) \
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_(JSOP_EXCEPTION) \
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_(JSOP_DEBUGGER) \
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_(JSOP_ARGUMENTS) \
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_(JSOP_RUNONCE) \
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_(JSOP_REST) \
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_(JSOP_TOASYNC) \
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_(JSOP_TOASYNCGEN) \
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_(JSOP_TOASYNCITER) \
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_(JSOP_TOID) \
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_(JSOP_TOSTRING) \
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_(JSOP_TABLESWITCH) \
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_(JSOP_ITER) \
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_(JSOP_MOREITER) \
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_(JSOP_ISNOITER) \
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_(JSOP_ENDITER) \
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_(JSOP_ISGENCLOSING) \
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_(JSOP_GENERATOR) \
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_(JSOP_INITIALYIELD) \
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_(JSOP_YIELD) \
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_(JSOP_AWAIT) \
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_(JSOP_DEBUGAFTERYIELD) \
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_(JSOP_FINALYIELDRVAL) \
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_(JSOP_RESUME) \
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_(JSOP_CALLEE) \
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_(JSOP_GETRVAL) \
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_(JSOP_SETRVAL) \
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_(JSOP_RETRVAL) \
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_(JSOP_RETURN) \
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_(JSOP_FUNCTIONTHIS) \
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_(JSOP_GLOBALTHIS) \
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_(JSOP_CHECKISOBJ) \
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_(JSOP_CHECKISCALLABLE) \
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_(JSOP_CHECKTHIS) \
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_(JSOP_CHECKRETURN) \
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_(JSOP_NEWTARGET) \
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_(JSOP_SUPERCALL) \
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_(JSOP_SPREADSUPERCALL) \
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_(JSOP_THROWSETCONST) \
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_(JSOP_THROWSETALIASEDCONST) \
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_(JSOP_THROWSETCALLEE) \
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_(JSOP_INITHIDDENPROP_GETTER) \
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_(JSOP_INITHIDDENPROP_SETTER) \
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_(JSOP_INITHIDDENELEM) \
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_(JSOP_INITHIDDENELEM_GETTER) \
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_(JSOP_INITHIDDENELEM_SETTER) \
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_(JSOP_CHECKOBJCOERCIBLE) \
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_(JSOP_DEBUGCHECKSELFHOSTED) \
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_(JSOP_JUMPTARGET) \
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_(JSOP_IS_CONSTRUCTING) \
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_(JSOP_TRY_DESTRUCTURING_ITERCLOSE)
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class BaselineCompiler : public BaselineCompilerSpecific
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{
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FixedList<Label> labels_;
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NonAssertingLabel return_;
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NonAssertingLabel postBarrierSlot_;
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// Native code offset right before the scope chain is initialized.
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CodeOffset prologueOffset_;
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// Native code offset right before the frame is popped and the method
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// returned from.
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CodeOffset epilogueOffset_;
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// Native code offset right after debug prologue and epilogue, or
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// equivalent positions when debug mode is off.
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CodeOffset postDebugPrologueOffset_;
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// For each INITIALYIELD or YIELD or AWAIT op, this Vector maps the yield
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// index to the bytecode offset of the next op.
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Vector<uint32_t> yieldAndAwaitOffsets_;
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// Whether any on stack arguments are modified.
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bool modifiesArguments_;
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Label* labelOf(jsbytecode* pc) {
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return &labels_[script->pcToOffset(pc)];
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}
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// If a script has more |nslots| than this, then emit code to do an
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// early stack check.
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static const unsigned EARLY_STACK_CHECK_SLOT_COUNT = 128;
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bool needsEarlyStackCheck() const {
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return script->nslots() > EARLY_STACK_CHECK_SLOT_COUNT;
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}
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public:
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BaselineCompiler(JSContext* cx, TempAllocator& alloc, JSScript* script);
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MOZ_MUST_USE bool init();
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MethodStatus compile();
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private:
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MethodStatus emitBody();
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MOZ_MUST_USE bool emitCheckThis(ValueOperand val);
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void emitLoadReturnValue(ValueOperand val);
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void emitInitializeLocals();
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MOZ_MUST_USE bool emitPrologue();
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MOZ_MUST_USE bool emitEpilogue();
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MOZ_MUST_USE bool emitOutOfLinePostBarrierSlot();
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MOZ_MUST_USE bool emitIC(ICStub* stub, ICEntry::Kind kind);
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MOZ_MUST_USE bool emitOpIC(ICStub* stub) {
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return emitIC(stub, ICEntry::Kind_Op);
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}
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MOZ_MUST_USE bool emitNonOpIC(ICStub* stub) {
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return emitIC(stub, ICEntry::Kind_NonOp);
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}
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MOZ_MUST_USE bool emitStackCheck(bool earlyCheck=false);
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MOZ_MUST_USE bool emitInterruptCheck();
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MOZ_MUST_USE bool emitWarmUpCounterIncrement(bool allowOsr=true);
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MOZ_MUST_USE bool emitArgumentTypeChecks();
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void emitIsDebuggeeCheck();
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MOZ_MUST_USE bool emitDebugPrologue();
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MOZ_MUST_USE bool emitDebugTrap();
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MOZ_MUST_USE bool emitTraceLoggerEnter();
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MOZ_MUST_USE bool emitTraceLoggerExit();
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MOZ_MUST_USE bool emitTraceLoggerResume(Register script, AllocatableGeneralRegisterSet& regs);
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void emitProfilerEnterFrame();
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void emitProfilerExitFrame();
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MOZ_MUST_USE bool initEnvironmentChain();
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void storeValue(const StackValue* source, const Address& dest,
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const ValueOperand& scratch);
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#define EMIT_OP(op) bool emit_##op();
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OPCODE_LIST(EMIT_OP)
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#undef EMIT_OP
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// JSOP_NEG, JSOP_BITNOT
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MOZ_MUST_USE bool emitUnaryArith();
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// JSOP_BITXOR, JSOP_LSH, JSOP_ADD etc.
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MOZ_MUST_USE bool emitBinaryArith();
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// Handles JSOP_LT, JSOP_GT, and friends
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MOZ_MUST_USE bool emitCompare();
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MOZ_MUST_USE bool emitReturn();
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MOZ_MUST_USE bool emitToBoolean();
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MOZ_MUST_USE bool emitTest(bool branchIfTrue);
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MOZ_MUST_USE bool emitAndOr(bool branchIfTrue);
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MOZ_MUST_USE bool emitCall();
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MOZ_MUST_USE bool emitSpreadCall();
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MOZ_MUST_USE bool emitInitPropGetterSetter();
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MOZ_MUST_USE bool emitInitElemGetterSetter();
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MOZ_MUST_USE bool emitFormalArgAccess(uint32_t arg, bool get);
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MOZ_MUST_USE bool emitThrowConstAssignment();
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MOZ_MUST_USE bool emitUninitializedLexicalCheck(const ValueOperand& val);
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MOZ_MUST_USE bool emitIsMagicValue();
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MOZ_MUST_USE bool addPCMappingEntry(bool addIndexEntry);
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MOZ_MUST_USE bool addYieldAndAwaitOffset();
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void getEnvironmentCoordinateObject(Register reg);
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Address getEnvironmentCoordinateAddressFromObject(Register objReg, Register reg);
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Address getEnvironmentCoordinateAddress(Register reg);
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};
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extern const VMFunction NewArrayCopyOnWriteInfo;
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} // namespace jit
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} // namespace js
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#endif /* jit_BaselineCompiler_h */
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