--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/JavaScriptCore/bytecode/CodeBlock.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,1754 @@
+/*
+ * Copyright (C) 2008, 2009, 2010 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Cameron Zwarich <cwzwarich@uwaterloo.ca>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "CodeBlock.h"
+
+#include "JIT.h"
+#include "JSValue.h"
+#include "Interpreter.h"
+#include "JSFunction.h"
+#include "JSStaticScopeObject.h"
+#include "Debugger.h"
+#include "BytecodeGenerator.h"
+#include <stdio.h>
+#include <wtf/StringExtras.h>
+
+#define DUMP_CODE_BLOCK_STATISTICS 0
+
+namespace JSC {
+
+#if !defined(NDEBUG) || ENABLE(OPCODE_SAMPLING)
+
+static UString escapeQuotes(const UString& str)
+{
+ UString result = str;
+ unsigned pos = 0;
+ while ((pos = result.find('\"', pos)) != UString::NotFound) {
+ result = makeString(result.substr(0, pos), "\"\\\"\"", result.substr(pos + 1));
+ pos += 4;
+ }
+ return result;
+}
+
+static UString valueToSourceString(ExecState* exec, JSValue val)
+{
+ if (!val)
+ return "0";
+
+ if (val.isString())
+ return makeString("\"", escapeQuotes(val.toString(exec)), "\"");
+
+ return val.toString(exec);
+}
+
+static CString constantName(ExecState* exec, int k, JSValue value)
+{
+ return makeString(valueToSourceString(exec, value), "(@k", UString::from(k - FirstConstantRegisterIndex), ")").UTF8String();
+}
+
+static CString idName(int id0, const Identifier& ident)
+{
+ return makeString(ident.ustring(), "(@id", UString::from(id0), ")").UTF8String();
+}
+
+CString CodeBlock::registerName(ExecState* exec, int r) const
+{
+ if (r == missingThisObjectMarker())
+ return "<null>";
+
+ if (isConstantRegisterIndex(r))
+ return constantName(exec, r, getConstant(r));
+
+ return makeString("r", UString::from(r)).UTF8String();
+}
+
+static UString regexpToSourceString(RegExp* regExp)
+{
+ char postfix[5] = { '/', 0, 0, 0, 0 };
+ int index = 1;
+ if (regExp->global())
+ postfix[index++] = 'g';
+ if (regExp->ignoreCase())
+ postfix[index++] = 'i';
+ if (regExp->multiline())
+ postfix[index] = 'm';
+
+ return makeString("/", regExp->pattern(), postfix);
+}
+
+static CString regexpName(int re, RegExp* regexp)
+{
+ return makeString(regexpToSourceString(regexp), "(@re", UString::from(re), ")").UTF8String();
+}
+
+static UString pointerToSourceString(void* p)
+{
+ char buffer[2 + 2 * sizeof(void*) + 1]; // 0x [two characters per byte] \0
+ snprintf(buffer, sizeof(buffer), "%p", p);
+ return buffer;
+}
+
+NEVER_INLINE static const char* debugHookName(int debugHookID)
+{
+ switch (static_cast<DebugHookID>(debugHookID)) {
+ case DidEnterCallFrame:
+ return "didEnterCallFrame";
+ case WillLeaveCallFrame:
+ return "willLeaveCallFrame";
+ case WillExecuteStatement:
+ return "willExecuteStatement";
+ case WillExecuteProgram:
+ return "willExecuteProgram";
+ case DidExecuteProgram:
+ return "didExecuteProgram";
+ case DidReachBreakpoint:
+ return "didReachBreakpoint";
+ }
+
+ ASSERT_NOT_REACHED();
+ return "";
+}
+
+void CodeBlock::printUnaryOp(ExecState* exec, int location, Vector<Instruction>::const_iterator& it, const char* op) const
+{
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+
+ printf("[%4d] %s\t\t %s, %s\n", location, op, registerName(exec, r0).data(), registerName(exec, r1).data());
+}
+
+void CodeBlock::printBinaryOp(ExecState* exec, int location, Vector<Instruction>::const_iterator& it, const char* op) const
+{
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int r2 = (++it)->u.operand;
+ printf("[%4d] %s\t\t %s, %s, %s\n", location, op, registerName(exec, r0).data(), registerName(exec, r1).data(), registerName(exec, r2).data());
+}
+
+void CodeBlock::printConditionalJump(ExecState* exec, const Vector<Instruction>::const_iterator&, Vector<Instruction>::const_iterator& it, int location, const char* op) const
+{
+ int r0 = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] %s\t\t %s, %d(->%d)\n", location, op, registerName(exec, r0).data(), offset, location + offset);
+}
+
+void CodeBlock::printGetByIdOp(ExecState* exec, int location, Vector<Instruction>::const_iterator& it, const char* op) const
+{
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ printf("[%4d] %s\t %s, %s, %s\n", location, op, registerName(exec, r0).data(), registerName(exec, r1).data(), idName(id0, m_identifiers[id0]).data());
+ it += 4;
+}
+
+void CodeBlock::printPutByIdOp(ExecState* exec, int location, Vector<Instruction>::const_iterator& it, const char* op) const
+{
+ int r0 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] %s\t %s, %s, %s\n", location, op, registerName(exec, r0).data(), idName(id0, m_identifiers[id0]).data(), registerName(exec, r1).data());
+ it += 5;
+}
+
+#if ENABLE(JIT)
+static bool isGlobalResolve(OpcodeID opcodeID)
+{
+ return opcodeID == op_resolve_global || opcodeID == op_resolve_global_dynamic;
+}
+
+static bool isPropertyAccess(OpcodeID opcodeID)
+{
+ switch (opcodeID) {
+ case op_get_by_id_self:
+ case op_get_by_id_proto:
+ case op_get_by_id_chain:
+ case op_get_by_id_self_list:
+ case op_get_by_id_proto_list:
+ case op_put_by_id_transition:
+ case op_put_by_id_replace:
+ case op_get_by_id:
+ case op_put_by_id:
+ case op_get_by_id_generic:
+ case op_put_by_id_generic:
+ case op_get_array_length:
+ case op_get_string_length:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static unsigned instructionOffsetForNth(ExecState* exec, const Vector<Instruction>& instructions, int nth, bool (*predicate)(OpcodeID))
+{
+ size_t i = 0;
+ while (i < instructions.size()) {
+ OpcodeID currentOpcode = exec->interpreter()->getOpcodeID(instructions[i].u.opcode);
+ if (predicate(currentOpcode)) {
+ if (!--nth)
+ return i;
+ }
+ i += opcodeLengths[currentOpcode];
+ }
+
+ ASSERT_NOT_REACHED();
+ return 0;
+}
+
+static void printGlobalResolveInfo(const GlobalResolveInfo& resolveInfo, unsigned instructionOffset)
+{
+ printf(" [%4d] %s: %s\n", instructionOffset, "resolve_global", pointerToSourceString(resolveInfo.structure).UTF8String().data());
+}
+
+static void printStructureStubInfo(const StructureStubInfo& stubInfo, unsigned instructionOffset)
+{
+ switch (stubInfo.accessType) {
+ case access_get_by_id_self:
+ printf(" [%4d] %s: %s\n", instructionOffset, "get_by_id_self", pointerToSourceString(stubInfo.u.getByIdSelf.baseObjectStructure).UTF8String().data());
+ return;
+ case access_get_by_id_proto:
+ printf(" [%4d] %s: %s, %s\n", instructionOffset, "get_by_id_proto", pointerToSourceString(stubInfo.u.getByIdProto.baseObjectStructure).UTF8String().data(), pointerToSourceString(stubInfo.u.getByIdProto.prototypeStructure).UTF8String().data());
+ return;
+ case access_get_by_id_chain:
+ printf(" [%4d] %s: %s, %s\n", instructionOffset, "get_by_id_chain", pointerToSourceString(stubInfo.u.getByIdChain.baseObjectStructure).UTF8String().data(), pointerToSourceString(stubInfo.u.getByIdChain.chain).UTF8String().data());
+ return;
+ case access_get_by_id_self_list:
+ printf(" [%4d] %s: %s (%d)\n", instructionOffset, "op_get_by_id_self_list", pointerToSourceString(stubInfo.u.getByIdSelfList.structureList).UTF8String().data(), stubInfo.u.getByIdSelfList.listSize);
+ return;
+ case access_get_by_id_proto_list:
+ printf(" [%4d] %s: %s (%d)\n", instructionOffset, "op_get_by_id_proto_list", pointerToSourceString(stubInfo.u.getByIdProtoList.structureList).UTF8String().data(), stubInfo.u.getByIdProtoList.listSize);
+ return;
+ case access_put_by_id_transition:
+ printf(" [%4d] %s: %s, %s, %s\n", instructionOffset, "put_by_id_transition", pointerToSourceString(stubInfo.u.putByIdTransition.previousStructure).UTF8String().data(), pointerToSourceString(stubInfo.u.putByIdTransition.structure).UTF8String().data(), pointerToSourceString(stubInfo.u.putByIdTransition.chain).UTF8String().data());
+ return;
+ case access_put_by_id_replace:
+ printf(" [%4d] %s: %s\n", instructionOffset, "put_by_id_replace", pointerToSourceString(stubInfo.u.putByIdReplace.baseObjectStructure).UTF8String().data());
+ return;
+ case access_get_by_id:
+ printf(" [%4d] %s\n", instructionOffset, "get_by_id");
+ return;
+ case access_put_by_id:
+ printf(" [%4d] %s\n", instructionOffset, "put_by_id");
+ return;
+ case access_get_by_id_generic:
+ printf(" [%4d] %s\n", instructionOffset, "op_get_by_id_generic");
+ return;
+ case access_put_by_id_generic:
+ printf(" [%4d] %s\n", instructionOffset, "op_put_by_id_generic");
+ return;
+ case access_get_array_length:
+ printf(" [%4d] %s\n", instructionOffset, "op_get_array_length");
+ return;
+ case access_get_string_length:
+ printf(" [%4d] %s\n", instructionOffset, "op_get_string_length");
+ return;
+ default:
+ ASSERT_NOT_REACHED();
+ }
+}
+#endif
+
+void CodeBlock::printStructure(const char* name, const Instruction* vPC, int operand) const
+{
+ unsigned instructionOffset = vPC - m_instructions.begin();
+ printf(" [%4d] %s: %s\n", instructionOffset, name, pointerToSourceString(vPC[operand].u.structure).UTF8String().data());
+}
+
+void CodeBlock::printStructures(const Instruction* vPC) const
+{
+ Interpreter* interpreter = m_globalData->interpreter;
+ unsigned instructionOffset = vPC - m_instructions.begin();
+
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id)) {
+ printStructure("get_by_id", vPC, 4);
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_self)) {
+ printStructure("get_by_id_self", vPC, 4);
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_proto)) {
+ printf(" [%4d] %s: %s, %s\n", instructionOffset, "get_by_id_proto", pointerToSourceString(vPC[4].u.structure).UTF8String().data(), pointerToSourceString(vPC[5].u.structure).UTF8String().data());
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id_transition)) {
+ printf(" [%4d] %s: %s, %s, %s\n", instructionOffset, "put_by_id_transition", pointerToSourceString(vPC[4].u.structure).UTF8String().data(), pointerToSourceString(vPC[5].u.structure).UTF8String().data(), pointerToSourceString(vPC[6].u.structureChain).UTF8String().data());
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_chain)) {
+ printf(" [%4d] %s: %s, %s\n", instructionOffset, "get_by_id_chain", pointerToSourceString(vPC[4].u.structure).UTF8String().data(), pointerToSourceString(vPC[5].u.structureChain).UTF8String().data());
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id)) {
+ printStructure("put_by_id", vPC, 4);
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id_replace)) {
+ printStructure("put_by_id_replace", vPC, 4);
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_resolve_global)) {
+ printStructure("resolve_global", vPC, 4);
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_resolve_global_dynamic)) {
+ printStructure("resolve_global_dynamic", vPC, 4);
+ return;
+ }
+
+ // These m_instructions doesn't ref Structures.
+ ASSERT(vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_generic) || vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id_generic) || vPC[0].u.opcode == interpreter->getOpcode(op_call) || vPC[0].u.opcode == interpreter->getOpcode(op_call_eval) || vPC[0].u.opcode == interpreter->getOpcode(op_construct));
+}
+
+void CodeBlock::dump(ExecState* exec) const
+{
+ if (m_instructions.isEmpty()) {
+ printf("No instructions available.\n");
+ return;
+ }
+
+ size_t instructionCount = 0;
+
+ for (size_t i = 0; i < m_instructions.size(); i += opcodeLengths[exec->interpreter()->getOpcodeID(m_instructions[i].u.opcode)])
+ ++instructionCount;
+
+ printf("%lu m_instructions; %lu bytes at %p; %d parameter(s); %d callee register(s)\n\n",
+ static_cast<unsigned long>(instructionCount),
+ static_cast<unsigned long>(m_instructions.size() * sizeof(Instruction)),
+ this, m_numParameters, m_numCalleeRegisters);
+
+ Vector<Instruction>::const_iterator begin = m_instructions.begin();
+ Vector<Instruction>::const_iterator end = m_instructions.end();
+ for (Vector<Instruction>::const_iterator it = begin; it != end; ++it)
+ dump(exec, begin, it);
+
+ if (!m_identifiers.isEmpty()) {
+ printf("\nIdentifiers:\n");
+ size_t i = 0;
+ do {
+ printf(" id%u = %s\n", static_cast<unsigned>(i), m_identifiers[i].ascii());
+ ++i;
+ } while (i != m_identifiers.size());
+ }
+
+ if (!m_constantRegisters.isEmpty()) {
+ printf("\nConstants:\n");
+ unsigned registerIndex = m_numVars;
+ size_t i = 0;
+ do {
+ printf(" k%u = %s\n", registerIndex, valueToSourceString(exec, m_constantRegisters[i].jsValue()).ascii());
+ ++i;
+ ++registerIndex;
+ } while (i < m_constantRegisters.size());
+ }
+
+ if (m_rareData && !m_rareData->m_regexps.isEmpty()) {
+ printf("\nm_regexps:\n");
+ size_t i = 0;
+ do {
+ printf(" re%u = %s\n", static_cast<unsigned>(i), regexpToSourceString(m_rareData->m_regexps[i].get()).ascii());
+ ++i;
+ } while (i < m_rareData->m_regexps.size());
+ }
+
+#if ENABLE(JIT)
+ if (!m_globalResolveInfos.isEmpty() || !m_structureStubInfos.isEmpty())
+ printf("\nStructures:\n");
+
+ if (!m_globalResolveInfos.isEmpty()) {
+ size_t i = 0;
+ do {
+ printGlobalResolveInfo(m_globalResolveInfos[i], instructionOffsetForNth(exec, m_instructions, i + 1, isGlobalResolve));
+ ++i;
+ } while (i < m_globalResolveInfos.size());
+ }
+ if (!m_structureStubInfos.isEmpty()) {
+ size_t i = 0;
+ do {
+ printStructureStubInfo(m_structureStubInfos[i], instructionOffsetForNth(exec, m_instructions, i + 1, isPropertyAccess));
+ ++i;
+ } while (i < m_structureStubInfos.size());
+ }
+#else
+ if (!m_globalResolveInstructions.isEmpty() || !m_propertyAccessInstructions.isEmpty())
+ printf("\nStructures:\n");
+
+ if (!m_globalResolveInstructions.isEmpty()) {
+ size_t i = 0;
+ do {
+ printStructures(&m_instructions[m_globalResolveInstructions[i]]);
+ ++i;
+ } while (i < m_globalResolveInstructions.size());
+ }
+ if (!m_propertyAccessInstructions.isEmpty()) {
+ size_t i = 0;
+ do {
+ printStructures(&m_instructions[m_propertyAccessInstructions[i]]);
+ ++i;
+ } while (i < m_propertyAccessInstructions.size());
+ }
+#endif
+
+ if (m_rareData && !m_rareData->m_exceptionHandlers.isEmpty()) {
+ printf("\nException Handlers:\n");
+ unsigned i = 0;
+ do {
+ printf("\t %d: { start: [%4d] end: [%4d] target: [%4d] }\n", i + 1, m_rareData->m_exceptionHandlers[i].start, m_rareData->m_exceptionHandlers[i].end, m_rareData->m_exceptionHandlers[i].target);
+ ++i;
+ } while (i < m_rareData->m_exceptionHandlers.size());
+ }
+
+ if (m_rareData && !m_rareData->m_immediateSwitchJumpTables.isEmpty()) {
+ printf("Immediate Switch Jump Tables:\n");
+ unsigned i = 0;
+ do {
+ printf(" %1d = {\n", i);
+ int entry = 0;
+ Vector<int32_t>::const_iterator end = m_rareData->m_immediateSwitchJumpTables[i].branchOffsets.end();
+ for (Vector<int32_t>::const_iterator iter = m_rareData->m_immediateSwitchJumpTables[i].branchOffsets.begin(); iter != end; ++iter, ++entry) {
+ if (!*iter)
+ continue;
+ printf("\t\t%4d => %04d\n", entry + m_rareData->m_immediateSwitchJumpTables[i].min, *iter);
+ }
+ printf(" }\n");
+ ++i;
+ } while (i < m_rareData->m_immediateSwitchJumpTables.size());
+ }
+
+ if (m_rareData && !m_rareData->m_characterSwitchJumpTables.isEmpty()) {
+ printf("\nCharacter Switch Jump Tables:\n");
+ unsigned i = 0;
+ do {
+ printf(" %1d = {\n", i);
+ int entry = 0;
+ Vector<int32_t>::const_iterator end = m_rareData->m_characterSwitchJumpTables[i].branchOffsets.end();
+ for (Vector<int32_t>::const_iterator iter = m_rareData->m_characterSwitchJumpTables[i].branchOffsets.begin(); iter != end; ++iter, ++entry) {
+ if (!*iter)
+ continue;
+ ASSERT(!((i + m_rareData->m_characterSwitchJumpTables[i].min) & ~0xFFFF));
+ UChar ch = static_cast<UChar>(entry + m_rareData->m_characterSwitchJumpTables[i].min);
+ printf("\t\t\"%s\" => %04d\n", UString(&ch, 1).ascii(), *iter);
+ }
+ printf(" }\n");
+ ++i;
+ } while (i < m_rareData->m_characterSwitchJumpTables.size());
+ }
+
+ if (m_rareData && !m_rareData->m_stringSwitchJumpTables.isEmpty()) {
+ printf("\nString Switch Jump Tables:\n");
+ unsigned i = 0;
+ do {
+ printf(" %1d = {\n", i);
+ StringJumpTable::StringOffsetTable::const_iterator end = m_rareData->m_stringSwitchJumpTables[i].offsetTable.end();
+ for (StringJumpTable::StringOffsetTable::const_iterator iter = m_rareData->m_stringSwitchJumpTables[i].offsetTable.begin(); iter != end; ++iter)
+ printf("\t\t\"%s\" => %04d\n", UString(iter->first).ascii(), iter->second.branchOffset);
+ printf(" }\n");
+ ++i;
+ } while (i < m_rareData->m_stringSwitchJumpTables.size());
+ }
+
+ printf("\n");
+}
+
+void CodeBlock::dump(ExecState* exec, const Vector<Instruction>::const_iterator& begin, Vector<Instruction>::const_iterator& it) const
+{
+ int location = it - begin;
+ switch (exec->interpreter()->getOpcodeID(it->u.opcode)) {
+ case op_enter: {
+ printf("[%4d] enter\n", location);
+ break;
+ }
+ case op_enter_with_activation: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] enter_with_activation %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_create_arguments: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] create_arguments\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_init_arguments: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] init_arguments\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_get_callee: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] op_get_callee %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_create_this: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] create_this %s %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data());
+ break;
+ }
+ case op_convert_this: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] convert_this %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_new_object: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] new_object\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_new_array: {
+ int dst = (++it)->u.operand;
+ int argv = (++it)->u.operand;
+ int argc = (++it)->u.operand;
+ printf("[%4d] new_array\t %s, %s, %d\n", location, registerName(exec, dst).data(), registerName(exec, argv).data(), argc);
+ break;
+ }
+ case op_new_regexp: {
+ int r0 = (++it)->u.operand;
+ int re0 = (++it)->u.operand;
+ printf("[%4d] new_regexp\t %s, %s\n", location, registerName(exec, r0).data(), regexpName(re0, regexp(re0)).data());
+ break;
+ }
+ case op_mov: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] mov\t\t %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data());
+ break;
+ }
+ case op_not: {
+ printUnaryOp(exec, location, it, "not");
+ break;
+ }
+ case op_eq: {
+ printBinaryOp(exec, location, it, "eq");
+ break;
+ }
+ case op_eq_null: {
+ printUnaryOp(exec, location, it, "eq_null");
+ break;
+ }
+ case op_neq: {
+ printBinaryOp(exec, location, it, "neq");
+ break;
+ }
+ case op_neq_null: {
+ printUnaryOp(exec, location, it, "neq_null");
+ break;
+ }
+ case op_stricteq: {
+ printBinaryOp(exec, location, it, "stricteq");
+ break;
+ }
+ case op_nstricteq: {
+ printBinaryOp(exec, location, it, "nstricteq");
+ break;
+ }
+ case op_less: {
+ printBinaryOp(exec, location, it, "less");
+ break;
+ }
+ case op_lesseq: {
+ printBinaryOp(exec, location, it, "lesseq");
+ break;
+ }
+ case op_pre_inc: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] pre_inc\t\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_pre_dec: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] pre_dec\t\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_post_inc: {
+ printUnaryOp(exec, location, it, "post_inc");
+ break;
+ }
+ case op_post_dec: {
+ printUnaryOp(exec, location, it, "post_dec");
+ break;
+ }
+ case op_to_jsnumber: {
+ printUnaryOp(exec, location, it, "to_jsnumber");
+ break;
+ }
+ case op_negate: {
+ printUnaryOp(exec, location, it, "negate");
+ break;
+ }
+ case op_add: {
+ printBinaryOp(exec, location, it, "add");
+ ++it;
+ break;
+ }
+ case op_mul: {
+ printBinaryOp(exec, location, it, "mul");
+ ++it;
+ break;
+ }
+ case op_div: {
+ printBinaryOp(exec, location, it, "div");
+ ++it;
+ break;
+ }
+ case op_mod: {
+ printBinaryOp(exec, location, it, "mod");
+ break;
+ }
+ case op_sub: {
+ printBinaryOp(exec, location, it, "sub");
+ ++it;
+ break;
+ }
+ case op_lshift: {
+ printBinaryOp(exec, location, it, "lshift");
+ break;
+ }
+ case op_rshift: {
+ printBinaryOp(exec, location, it, "rshift");
+ break;
+ }
+ case op_urshift: {
+ printBinaryOp(exec, location, it, "urshift");
+ break;
+ }
+ case op_bitand: {
+ printBinaryOp(exec, location, it, "bitand");
+ ++it;
+ break;
+ }
+ case op_bitxor: {
+ printBinaryOp(exec, location, it, "bitxor");
+ ++it;
+ break;
+ }
+ case op_bitor: {
+ printBinaryOp(exec, location, it, "bitor");
+ ++it;
+ break;
+ }
+ case op_bitnot: {
+ printUnaryOp(exec, location, it, "bitnot");
+ break;
+ }
+ case op_instanceof: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int r2 = (++it)->u.operand;
+ int r3 = (++it)->u.operand;
+ printf("[%4d] instanceof\t\t %s, %s, %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), registerName(exec, r2).data(), registerName(exec, r3).data());
+ break;
+ }
+ case op_typeof: {
+ printUnaryOp(exec, location, it, "typeof");
+ break;
+ }
+ case op_is_undefined: {
+ printUnaryOp(exec, location, it, "is_undefined");
+ break;
+ }
+ case op_is_boolean: {
+ printUnaryOp(exec, location, it, "is_boolean");
+ break;
+ }
+ case op_is_number: {
+ printUnaryOp(exec, location, it, "is_number");
+ break;
+ }
+ case op_is_string: {
+ printUnaryOp(exec, location, it, "is_string");
+ break;
+ }
+ case op_is_object: {
+ printUnaryOp(exec, location, it, "is_object");
+ break;
+ }
+ case op_is_function: {
+ printUnaryOp(exec, location, it, "is_function");
+ break;
+ }
+ case op_in: {
+ printBinaryOp(exec, location, it, "in");
+ break;
+ }
+ case op_resolve: {
+ int r0 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ printf("[%4d] resolve\t\t %s, %s\n", location, registerName(exec, r0).data(), idName(id0, m_identifiers[id0]).data());
+ break;
+ }
+ case op_resolve_skip: {
+ int r0 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ int skipLevels = (++it)->u.operand;
+ printf("[%4d] resolve_skip\t %s, %s, %d\n", location, registerName(exec, r0).data(), idName(id0, m_identifiers[id0]).data(), skipLevels);
+ break;
+ }
+ case op_resolve_global: {
+ int r0 = (++it)->u.operand;
+ JSValue scope = JSValue((++it)->u.jsCell);
+ int id0 = (++it)->u.operand;
+ printf("[%4d] resolve_global\t %s, %s, %s\n", location, registerName(exec, r0).data(), valueToSourceString(exec, scope).ascii(), idName(id0, m_identifiers[id0]).data());
+ it += 2;
+ break;
+ }
+ case op_resolve_global_dynamic: {
+ int r0 = (++it)->u.operand;
+ JSValue scope = JSValue((++it)->u.jsCell);
+ int id0 = (++it)->u.operand;
+ int depth = it[2].u.operand;
+ printf("[%4d] resolve_global_dynamic\t %s, %s, %s, %d\n", location, registerName(exec, r0).data(), valueToSourceString(exec, scope).ascii(), idName(id0, m_identifiers[id0]).data(), depth);
+ it += 3;
+ break;
+ }
+ case op_get_scoped_var: {
+ int r0 = (++it)->u.operand;
+ int index = (++it)->u.operand;
+ int skipLevels = (++it)->u.operand;
+ printf("[%4d] get_scoped_var\t %s, %d, %d\n", location, registerName(exec, r0).data(), index, skipLevels);
+ break;
+ }
+ case op_put_scoped_var: {
+ int index = (++it)->u.operand;
+ int skipLevels = (++it)->u.operand;
+ int r0 = (++it)->u.operand;
+ printf("[%4d] put_scoped_var\t %d, %d, %s\n", location, index, skipLevels, registerName(exec, r0).data());
+ break;
+ }
+ case op_get_global_var: {
+ int r0 = (++it)->u.operand;
+ JSValue scope = JSValue((++it)->u.jsCell);
+ int index = (++it)->u.operand;
+ printf("[%4d] get_global_var\t %s, %s, %d\n", location, registerName(exec, r0).data(), valueToSourceString(exec, scope).ascii(), index);
+ break;
+ }
+ case op_put_global_var: {
+ JSValue scope = JSValue((++it)->u.jsCell);
+ int index = (++it)->u.operand;
+ int r0 = (++it)->u.operand;
+ printf("[%4d] put_global_var\t %s, %d, %s\n", location, valueToSourceString(exec, scope).ascii(), index, registerName(exec, r0).data());
+ break;
+ }
+ case op_resolve_base: {
+ int r0 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ printf("[%4d] resolve_base\t %s, %s\n", location, registerName(exec, r0).data(), idName(id0, m_identifiers[id0]).data());
+ break;
+ }
+ case op_resolve_with_base: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ printf("[%4d] resolve_with_base %s, %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), idName(id0, m_identifiers[id0]).data());
+ break;
+ }
+ case op_get_by_id: {
+ printGetByIdOp(exec, location, it, "get_by_id");
+ break;
+ }
+ case op_get_by_id_self: {
+ printGetByIdOp(exec, location, it, "get_by_id_self");
+ break;
+ }
+ case op_get_by_id_self_list: {
+ printGetByIdOp(exec, location, it, "get_by_id_self_list");
+ break;
+ }
+ case op_get_by_id_proto: {
+ printGetByIdOp(exec, location, it, "get_by_id_proto");
+ break;
+ }
+ case op_get_by_id_proto_list: {
+ printGetByIdOp(exec, location, it, "op_get_by_id_proto_list");
+ break;
+ }
+ case op_get_by_id_chain: {
+ printGetByIdOp(exec, location, it, "get_by_id_chain");
+ break;
+ }
+ case op_get_by_id_getter_self: {
+ printGetByIdOp(exec, location, it, "get_by_id_getter_self");
+ break;
+ }
+ case op_get_by_id_getter_self_list: {
+ printGetByIdOp(exec, location, it, "get_by_id_getter_self_list");
+ break;
+ }
+ case op_get_by_id_getter_proto: {
+ printGetByIdOp(exec, location, it, "get_by_id_getter_proto");
+ break;
+ }
+ case op_get_by_id_getter_proto_list: {
+ printGetByIdOp(exec, location, it, "get_by_id_getter_proto_list");
+ break;
+ }
+ case op_get_by_id_getter_chain: {
+ printGetByIdOp(exec, location, it, "get_by_id_getter_chain");
+ break;
+ }
+ case op_get_by_id_custom_self: {
+ printGetByIdOp(exec, location, it, "get_by_id_custom_self");
+ break;
+ }
+ case op_get_by_id_custom_self_list: {
+ printGetByIdOp(exec, location, it, "get_by_id_custom_self_list");
+ break;
+ }
+ case op_get_by_id_custom_proto: {
+ printGetByIdOp(exec, location, it, "get_by_id_custom_proto");
+ break;
+ }
+ case op_get_by_id_custom_proto_list: {
+ printGetByIdOp(exec, location, it, "get_by_id_custom_proto_list");
+ break;
+ }
+ case op_get_by_id_custom_chain: {
+ printGetByIdOp(exec, location, it, "get_by_id_custom_chain");
+ break;
+ }
+ case op_get_by_id_generic: {
+ printGetByIdOp(exec, location, it, "get_by_id_generic");
+ break;
+ }
+ case op_get_array_length: {
+ printGetByIdOp(exec, location, it, "get_array_length");
+ break;
+ }
+ case op_get_string_length: {
+ printGetByIdOp(exec, location, it, "get_string_length");
+ break;
+ }
+ case op_put_by_id: {
+ printPutByIdOp(exec, location, it, "put_by_id");
+ break;
+ }
+ case op_put_by_id_replace: {
+ printPutByIdOp(exec, location, it, "put_by_id_replace");
+ break;
+ }
+ case op_put_by_id_transition: {
+ printPutByIdOp(exec, location, it, "put_by_id_transition");
+ break;
+ }
+ case op_put_by_id_generic: {
+ printPutByIdOp(exec, location, it, "put_by_id_generic");
+ break;
+ }
+ case op_put_getter: {
+ int r0 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] put_getter\t %s, %s, %s\n", location, registerName(exec, r0).data(), idName(id0, m_identifiers[id0]).data(), registerName(exec, r1).data());
+ break;
+ }
+ case op_put_setter: {
+ int r0 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] put_setter\t %s, %s, %s\n", location, registerName(exec, r0).data(), idName(id0, m_identifiers[id0]).data(), registerName(exec, r1).data());
+ break;
+ }
+ case op_method_check: {
+ printf("[%4d] method_check\n", location);
+ break;
+ }
+ case op_del_by_id: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ printf("[%4d] del_by_id\t %s, %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), idName(id0, m_identifiers[id0]).data());
+ break;
+ }
+ case op_get_by_val: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int r2 = (++it)->u.operand;
+ printf("[%4d] get_by_val\t %s, %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), registerName(exec, r2).data());
+ break;
+ }
+ case op_get_by_pname: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int r2 = (++it)->u.operand;
+ int r3 = (++it)->u.operand;
+ int r4 = (++it)->u.operand;
+ int r5 = (++it)->u.operand;
+ printf("[%4d] get_by_pname\t %s, %s, %s, %s, %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), registerName(exec, r2).data(), registerName(exec, r3).data(), registerName(exec, r4).data(), registerName(exec, r5).data());
+ break;
+ }
+ case op_put_by_val: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int r2 = (++it)->u.operand;
+ printf("[%4d] put_by_val\t %s, %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), registerName(exec, r2).data());
+ break;
+ }
+ case op_del_by_val: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int r2 = (++it)->u.operand;
+ printf("[%4d] del_by_val\t %s, %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), registerName(exec, r2).data());
+ break;
+ }
+ case op_put_by_index: {
+ int r0 = (++it)->u.operand;
+ unsigned n0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] put_by_index\t %s, %u, %s\n", location, registerName(exec, r0).data(), n0, registerName(exec, r1).data());
+ break;
+ }
+ case op_jmp: {
+ int offset = (++it)->u.operand;
+ printf("[%4d] jmp\t\t %d(->%d)\n", location, offset, location + offset);
+ break;
+ }
+ case op_loop: {
+ int offset = (++it)->u.operand;
+ printf("[%4d] loop\t\t %d(->%d)\n", location, offset, location + offset);
+ break;
+ }
+ case op_jtrue: {
+ printConditionalJump(exec, begin, it, location, "jtrue");
+ break;
+ }
+ case op_loop_if_true: {
+ printConditionalJump(exec, begin, it, location, "loop_if_true");
+ break;
+ }
+ case op_loop_if_false: {
+ printConditionalJump(exec, begin, it, location, "loop_if_false");
+ break;
+ }
+ case op_jfalse: {
+ printConditionalJump(exec, begin, it, location, "jfalse");
+ break;
+ }
+ case op_jeq_null: {
+ printConditionalJump(exec, begin, it, location, "jeq_null");
+ break;
+ }
+ case op_jneq_null: {
+ printConditionalJump(exec, begin, it, location, "jneq_null");
+ break;
+ }
+ case op_jneq_ptr: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] jneq_ptr\t\t %s, %s, %d(->%d)\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), offset, location + offset);
+ break;
+ }
+ case op_jnless: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] jnless\t\t %s, %s, %d(->%d)\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), offset, location + offset);
+ break;
+ }
+ case op_jnlesseq: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] jnlesseq\t\t %s, %s, %d(->%d)\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), offset, location + offset);
+ break;
+ }
+ case op_loop_if_less: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] loop_if_less\t %s, %s, %d(->%d)\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), offset, location + offset);
+ break;
+ }
+ case op_jless: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] jless\t\t %s, %s, %d(->%d)\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), offset, location + offset);
+ break;
+ }
+ case op_jlesseq: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] jlesseq\t\t %s, %s, %d(->%d)\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), offset, location + offset);
+ break;
+ }
+ case op_loop_if_lesseq: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] loop_if_lesseq\t %s, %s, %d(->%d)\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), offset, location + offset);
+ break;
+ }
+ case op_switch_imm: {
+ int tableIndex = (++it)->u.operand;
+ int defaultTarget = (++it)->u.operand;
+ int scrutineeRegister = (++it)->u.operand;
+ printf("[%4d] switch_imm\t %d, %d(->%d), %s\n", location, tableIndex, defaultTarget, location + defaultTarget, registerName(exec, scrutineeRegister).data());
+ break;
+ }
+ case op_switch_char: {
+ int tableIndex = (++it)->u.operand;
+ int defaultTarget = (++it)->u.operand;
+ int scrutineeRegister = (++it)->u.operand;
+ printf("[%4d] switch_char\t %d, %d(->%d), %s\n", location, tableIndex, defaultTarget, location + defaultTarget, registerName(exec, scrutineeRegister).data());
+ break;
+ }
+ case op_switch_string: {
+ int tableIndex = (++it)->u.operand;
+ int defaultTarget = (++it)->u.operand;
+ int scrutineeRegister = (++it)->u.operand;
+ printf("[%4d] switch_string\t %d, %d(->%d), %s\n", location, tableIndex, defaultTarget, location + defaultTarget, registerName(exec, scrutineeRegister).data());
+ break;
+ }
+ case op_new_func: {
+ int r0 = (++it)->u.operand;
+ int f0 = (++it)->u.operand;
+ printf("[%4d] new_func\t\t %s, f%d\n", location, registerName(exec, r0).data(), f0);
+ break;
+ }
+ case op_new_func_exp: {
+ int r0 = (++it)->u.operand;
+ int f0 = (++it)->u.operand;
+ printf("[%4d] new_func_exp\t %s, f%d\n", location, registerName(exec, r0).data(), f0);
+ break;
+ }
+ case op_call: {
+ int func = (++it)->u.operand;
+ int argCount = (++it)->u.operand;
+ int registerOffset = (++it)->u.operand;
+ printf("[%4d] call\t\t %s, %d, %d\n", location, registerName(exec, func).data(), argCount, registerOffset);
+ break;
+ }
+ case op_call_eval: {
+ int func = (++it)->u.operand;
+ int argCount = (++it)->u.operand;
+ int registerOffset = (++it)->u.operand;
+ printf("[%4d] call_eval\t %s, %d, %d\n", location, registerName(exec, func).data(), argCount, registerOffset);
+ break;
+ }
+ case op_call_varargs: {
+ int func = (++it)->u.operand;
+ int argCount = (++it)->u.operand;
+ int registerOffset = (++it)->u.operand;
+ printf("[%4d] call_varargs\t %s, %s, %d\n", location, registerName(exec, func).data(), registerName(exec, argCount).data(), registerOffset);
+ break;
+ }
+ case op_load_varargs: {
+ printUnaryOp(exec, location, it, "load_varargs");
+ break;
+ }
+ case op_tear_off_activation: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] tear_off_activation\t %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data());
+ break;
+ }
+ case op_tear_off_arguments: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] tear_off_arguments\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_ret: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] ret\t\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_call_put_result: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] op_call_put_result\t\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_ret_object_or_this: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] constructor_ret\t\t %s %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data());
+ break;
+ }
+ case op_construct: {
+ int func = (++it)->u.operand;
+ int argCount = (++it)->u.operand;
+ int registerOffset = (++it)->u.operand;
+ printf("[%4d] construct\t %s, %d, %d\n", location, registerName(exec, func).data(), argCount, registerOffset);
+ break;
+ }
+ case op_strcat: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ int count = (++it)->u.operand;
+ printf("[%4d] strcat\t\t %s, %s, %d\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), count);
+ break;
+ }
+ case op_to_primitive: {
+ int r0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] to_primitive\t %s, %s\n", location, registerName(exec, r0).data(), registerName(exec, r1).data());
+ break;
+ }
+ case op_get_pnames: {
+ int r0 = it[1].u.operand;
+ int r1 = it[2].u.operand;
+ int r2 = it[3].u.operand;
+ int r3 = it[4].u.operand;
+ int offset = it[5].u.operand;
+ printf("[%4d] get_pnames\t %s, %s, %s, %s, %d(->%d)\n", location, registerName(exec, r0).data(), registerName(exec, r1).data(), registerName(exec, r2).data(), registerName(exec, r3).data(), offset, location + offset);
+ it += OPCODE_LENGTH(op_get_pnames) - 1;
+ break;
+ }
+ case op_next_pname: {
+ int dest = it[1].u.operand;
+ int iter = it[4].u.operand;
+ int offset = it[5].u.operand;
+ printf("[%4d] next_pname\t %s, %s, %d(->%d)\n", location, registerName(exec, dest).data(), registerName(exec, iter).data(), offset, location + offset);
+ it += OPCODE_LENGTH(op_next_pname) - 1;
+ break;
+ }
+ case op_push_scope: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] push_scope\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_pop_scope: {
+ printf("[%4d] pop_scope\n", location);
+ break;
+ }
+ case op_push_new_scope: {
+ int r0 = (++it)->u.operand;
+ int id0 = (++it)->u.operand;
+ int r1 = (++it)->u.operand;
+ printf("[%4d] push_new_scope \t%s, %s, %s\n", location, registerName(exec, r0).data(), idName(id0, m_identifiers[id0]).data(), registerName(exec, r1).data());
+ break;
+ }
+ case op_jmp_scopes: {
+ int scopeDelta = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] jmp_scopes\t^%d, %d(->%d)\n", location, scopeDelta, offset, location + offset);
+ break;
+ }
+ case op_catch: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] catch\t\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_throw: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] throw\t\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ case op_new_error: {
+ int r0 = (++it)->u.operand;
+ int errorType = (++it)->u.operand;
+ int k0 = (++it)->u.operand;
+ printf("[%4d] new_error\t %s, %d, %s\n", location, registerName(exec, r0).data(), errorType, constantName(exec, k0, getConstant(k0)).data());
+ break;
+ }
+ case op_jsr: {
+ int retAddrDst = (++it)->u.operand;
+ int offset = (++it)->u.operand;
+ printf("[%4d] jsr\t\t %s, %d(->%d)\n", location, registerName(exec, retAddrDst).data(), offset, location + offset);
+ break;
+ }
+ case op_sret: {
+ int retAddrSrc = (++it)->u.operand;
+ printf("[%4d] sret\t\t %s\n", location, registerName(exec, retAddrSrc).data());
+ break;
+ }
+ case op_debug: {
+ int debugHookID = (++it)->u.operand;
+ int firstLine = (++it)->u.operand;
+ int lastLine = (++it)->u.operand;
+ printf("[%4d] debug\t\t %s, %d, %d\n", location, debugHookName(debugHookID), firstLine, lastLine);
+ break;
+ }
+ case op_profile_will_call: {
+ int function = (++it)->u.operand;
+ printf("[%4d] profile_will_call %s\n", location, registerName(exec, function).data());
+ break;
+ }
+ case op_profile_did_call: {
+ int function = (++it)->u.operand;
+ printf("[%4d] profile_did_call\t %s\n", location, registerName(exec, function).data());
+ break;
+ }
+ case op_end: {
+ int r0 = (++it)->u.operand;
+ printf("[%4d] end\t\t %s\n", location, registerName(exec, r0).data());
+ break;
+ }
+ }
+}
+
+#endif // !defined(NDEBUG) || ENABLE(OPCODE_SAMPLING)
+
+#if DUMP_CODE_BLOCK_STATISTICS
+static HashSet<CodeBlock*> liveCodeBlockSet;
+#endif
+
+#define FOR_EACH_MEMBER_VECTOR(macro) \
+ macro(instructions) \
+ macro(globalResolveInfos) \
+ macro(structureStubInfos) \
+ macro(callLinkInfos) \
+ macro(linkedCallerList) \
+ macro(identifiers) \
+ macro(functionExpressions) \
+ macro(constantRegisters)
+
+#define FOR_EACH_MEMBER_VECTOR_RARE_DATA(macro) \
+ macro(regexps) \
+ macro(functions) \
+ macro(exceptionHandlers) \
+ macro(immediateSwitchJumpTables) \
+ macro(characterSwitchJumpTables) \
+ macro(stringSwitchJumpTables) \
+ macro(functionRegisterInfos)
+
+#define FOR_EACH_MEMBER_VECTOR_EXCEPTION_INFO(macro) \
+ macro(expressionInfo) \
+ macro(lineInfo) \
+ macro(getByIdExceptionInfo) \
+ macro(pcVector)
+
+template<typename T>
+static size_t sizeInBytes(const Vector<T>& vector)
+{
+ return vector.capacity() * sizeof(T);
+}
+
+void CodeBlock::dumpStatistics()
+{
+#if DUMP_CODE_BLOCK_STATISTICS
+ #define DEFINE_VARS(name) size_t name##IsNotEmpty = 0; size_t name##TotalSize = 0;
+ FOR_EACH_MEMBER_VECTOR(DEFINE_VARS)
+ FOR_EACH_MEMBER_VECTOR_RARE_DATA(DEFINE_VARS)
+ FOR_EACH_MEMBER_VECTOR_EXCEPTION_INFO(DEFINE_VARS)
+ #undef DEFINE_VARS
+
+ // Non-vector data members
+ size_t evalCodeCacheIsNotEmpty = 0;
+
+ size_t symbolTableIsNotEmpty = 0;
+ size_t symbolTableTotalSize = 0;
+
+ size_t hasExceptionInfo = 0;
+ size_t hasRareData = 0;
+
+ size_t isFunctionCode = 0;
+ size_t isGlobalCode = 0;
+ size_t isEvalCode = 0;
+
+ HashSet<CodeBlock*>::const_iterator end = liveCodeBlockSet.end();
+ for (HashSet<CodeBlock*>::const_iterator it = liveCodeBlockSet.begin(); it != end; ++it) {
+ CodeBlock* codeBlock = *it;
+
+ #define GET_STATS(name) if (!codeBlock->m_##name.isEmpty()) { name##IsNotEmpty++; name##TotalSize += sizeInBytes(codeBlock->m_##name); }
+ FOR_EACH_MEMBER_VECTOR(GET_STATS)
+ #undef GET_STATS
+
+ if (!codeBlock->m_symbolTable.isEmpty()) {
+ symbolTableIsNotEmpty++;
+ symbolTableTotalSize += (codeBlock->m_symbolTable.capacity() * (sizeof(SymbolTable::KeyType) + sizeof(SymbolTable::MappedType)));
+ }
+
+ if (codeBlock->m_exceptionInfo) {
+ hasExceptionInfo++;
+ #define GET_STATS(name) if (!codeBlock->m_exceptionInfo->m_##name.isEmpty()) { name##IsNotEmpty++; name##TotalSize += sizeInBytes(codeBlock->m_exceptionInfo->m_##name); }
+ FOR_EACH_MEMBER_VECTOR_EXCEPTION_INFO(GET_STATS)
+ #undef GET_STATS
+ }
+
+ if (codeBlock->m_rareData) {
+ hasRareData++;
+ #define GET_STATS(name) if (!codeBlock->m_rareData->m_##name.isEmpty()) { name##IsNotEmpty++; name##TotalSize += sizeInBytes(codeBlock->m_rareData->m_##name); }
+ FOR_EACH_MEMBER_VECTOR_RARE_DATA(GET_STATS)
+ #undef GET_STATS
+
+ if (!codeBlock->m_rareData->m_evalCodeCache.isEmpty())
+ evalCodeCacheIsNotEmpty++;
+ }
+
+ switch (codeBlock->codeType()) {
+ case FunctionCode:
+ ++isFunctionCode;
+ break;
+ case GlobalCode:
+ ++isGlobalCode;
+ break;
+ case EvalCode:
+ ++isEvalCode;
+ break;
+ }
+ }
+
+ size_t totalSize = 0;
+
+ #define GET_TOTAL_SIZE(name) totalSize += name##TotalSize;
+ FOR_EACH_MEMBER_VECTOR(GET_TOTAL_SIZE)
+ FOR_EACH_MEMBER_VECTOR_RARE_DATA(GET_TOTAL_SIZE)
+ FOR_EACH_MEMBER_VECTOR_EXCEPTION_INFO(GET_TOTAL_SIZE)
+ #undef GET_TOTAL_SIZE
+
+ totalSize += symbolTableTotalSize;
+ totalSize += (liveCodeBlockSet.size() * sizeof(CodeBlock));
+
+ printf("Number of live CodeBlocks: %d\n", liveCodeBlockSet.size());
+ printf("Size of a single CodeBlock [sizeof(CodeBlock)]: %zu\n", sizeof(CodeBlock));
+ printf("Size of all CodeBlocks: %zu\n", totalSize);
+ printf("Average size of a CodeBlock: %zu\n", totalSize / liveCodeBlockSet.size());
+
+ printf("Number of FunctionCode CodeBlocks: %zu (%.3f%%)\n", isFunctionCode, static_cast<double>(isFunctionCode) * 100.0 / liveCodeBlockSet.size());
+ printf("Number of GlobalCode CodeBlocks: %zu (%.3f%%)\n", isGlobalCode, static_cast<double>(isGlobalCode) * 100.0 / liveCodeBlockSet.size());
+ printf("Number of EvalCode CodeBlocks: %zu (%.3f%%)\n", isEvalCode, static_cast<double>(isEvalCode) * 100.0 / liveCodeBlockSet.size());
+
+ printf("Number of CodeBlocks with exception info: %zu (%.3f%%)\n", hasExceptionInfo, static_cast<double>(hasExceptionInfo) * 100.0 / liveCodeBlockSet.size());
+ printf("Number of CodeBlocks with rare data: %zu (%.3f%%)\n", hasRareData, static_cast<double>(hasRareData) * 100.0 / liveCodeBlockSet.size());
+
+ #define PRINT_STATS(name) printf("Number of CodeBlocks with " #name ": %zu\n", name##IsNotEmpty); printf("Size of all " #name ": %zu\n", name##TotalSize);
+ FOR_EACH_MEMBER_VECTOR(PRINT_STATS)
+ FOR_EACH_MEMBER_VECTOR_RARE_DATA(PRINT_STATS)
+ FOR_EACH_MEMBER_VECTOR_EXCEPTION_INFO(PRINT_STATS)
+ #undef PRINT_STATS
+
+ printf("Number of CodeBlocks with evalCodeCache: %zu\n", evalCodeCacheIsNotEmpty);
+ printf("Number of CodeBlocks with symbolTable: %zu\n", symbolTableIsNotEmpty);
+
+ printf("Size of all symbolTables: %zu\n", symbolTableTotalSize);
+
+#else
+ printf("Dumping CodeBlock statistics is not enabled.\n");
+#endif
+}
+
+CodeBlock::CodeBlock(ScriptExecutable* ownerExecutable, CodeType codeType, PassRefPtr<SourceProvider> sourceProvider, unsigned sourceOffset, SymbolTable* symTab, bool isConstructor)
+ : m_numCalleeRegisters(0)
+ , m_numVars(0)
+ , m_numParameters(0)
+ , m_isConstructor(isConstructor)
+ , m_ownerExecutable(ownerExecutable)
+ , m_globalData(0)
+#ifndef NDEBUG
+ , m_instructionCount(0)
+#endif
+ , m_argumentsRegister(-1)
+ , m_needsFullScopeChain(ownerExecutable->needsActivation())
+ , m_usesEval(ownerExecutable->usesEval())
+ , m_isNumericCompareFunction(false)
+ , m_codeType(codeType)
+ , m_source(sourceProvider)
+ , m_sourceOffset(sourceOffset)
+ , m_symbolTable(symTab)
+ , m_exceptionInfo(adoptPtr(new ExceptionInfo))
+{
+ ASSERT(m_source);
+
+#if DUMP_CODE_BLOCK_STATISTICS
+ liveCodeBlockSet.add(this);
+#endif
+}
+
+CodeBlock::~CodeBlock()
+{
+#if ENABLE(INTERPRETER)
+ for (size_t size = m_globalResolveInstructions.size(), i = 0; i < size; ++i)
+ derefStructures(&m_instructions[m_globalResolveInstructions[i]]);
+
+ for (size_t size = m_propertyAccessInstructions.size(), i = 0; i < size; ++i)
+ derefStructures(&m_instructions[m_propertyAccessInstructions[i]]);
+#endif
+#if ENABLE(JIT)
+ for (size_t size = m_globalResolveInfos.size(), i = 0; i < size; ++i) {
+ if (m_globalResolveInfos[i].structure)
+ m_globalResolveInfos[i].structure->deref();
+ }
+
+ for (size_t size = m_structureStubInfos.size(), i = 0; i < size; ++i)
+ m_structureStubInfos[i].deref();
+
+ for (size_t size = m_callLinkInfos.size(), i = 0; i < size; ++i) {
+ CallLinkInfo* callLinkInfo = &m_callLinkInfos[i];
+ if (callLinkInfo->isLinked())
+ callLinkInfo->callee->removeCaller(callLinkInfo);
+ }
+
+ for (size_t size = m_methodCallLinkInfos.size(), i = 0; i < size; ++i) {
+ if (Structure* structure = m_methodCallLinkInfos[i].cachedStructure) {
+ structure->deref();
+ // Both members must be filled at the same time
+ ASSERT(!!m_methodCallLinkInfos[i].cachedPrototypeStructure);
+ m_methodCallLinkInfos[i].cachedPrototypeStructure->deref();
+ }
+ }
+
+#if ENABLE(JIT_OPTIMIZE_CALL)
+ unlinkCallers();
+#endif
+
+#endif // ENABLE(JIT)
+
+#if DUMP_CODE_BLOCK_STATISTICS
+ liveCodeBlockSet.remove(this);
+#endif
+}
+
+#if ENABLE(JIT_OPTIMIZE_CALL)
+void CodeBlock::unlinkCallers()
+{
+ size_t size = m_linkedCallerList.size();
+ for (size_t i = 0; i < size; ++i) {
+ CallLinkInfo* currentCaller = m_linkedCallerList[i];
+ JIT::unlinkCallOrConstruct(currentCaller);
+ currentCaller->setUnlinked();
+ }
+ m_linkedCallerList.clear();
+}
+#endif
+
+void CodeBlock::derefStructures(Instruction* vPC) const
+{
+ Interpreter* interpreter = m_globalData->interpreter;
+
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_self) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_getter_self) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_custom_self)) {
+ vPC[4].u.structure->deref();
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_proto) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_getter_proto) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_custom_proto)) {
+ vPC[4].u.structure->deref();
+ vPC[5].u.structure->deref();
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_chain) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_getter_chain) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_custom_chain)) {
+ vPC[4].u.structure->deref();
+ vPC[5].u.structureChain->deref();
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id_transition)) {
+ vPC[4].u.structure->deref();
+ vPC[5].u.structure->deref();
+ vPC[6].u.structureChain->deref();
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id_replace)) {
+ vPC[4].u.structure->deref();
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_resolve_global) || vPC[0].u.opcode == interpreter->getOpcode(op_resolve_global_dynamic)) {
+ if(vPC[4].u.structure)
+ vPC[4].u.structure->deref();
+ return;
+ }
+ if ((vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_proto_list))
+ || (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_self_list))
+ || (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_getter_proto_list))
+ || (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_getter_self_list))
+ || (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_custom_proto_list))
+ || (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_custom_self_list))) {
+ PolymorphicAccessStructureList* polymorphicStructures = vPC[4].u.polymorphicStructures;
+ polymorphicStructures->derefStructures(vPC[5].u.operand);
+ delete polymorphicStructures;
+ return;
+ }
+
+ // These instructions don't ref their Structures.
+ ASSERT(vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id) || vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_generic) || vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id_generic) || vPC[0].u.opcode == interpreter->getOpcode(op_get_array_length) || vPC[0].u.opcode == interpreter->getOpcode(op_get_string_length));
+}
+
+void CodeBlock::refStructures(Instruction* vPC) const
+{
+ Interpreter* interpreter = m_globalData->interpreter;
+
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_self) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_getter_self) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_custom_self)) {
+ vPC[4].u.structure->ref();
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_proto) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_getter_proto) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_custom_proto)) {
+ vPC[4].u.structure->ref();
+ vPC[5].u.structure->ref();
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_chain) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_getter_chain) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_custom_chain)) {
+ vPC[4].u.structure->ref();
+ vPC[5].u.structureChain->ref();
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id_transition)) {
+ vPC[4].u.structure->ref();
+ vPC[5].u.structure->ref();
+ vPC[6].u.structureChain->ref();
+ return;
+ }
+ if (vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id_replace)) {
+ vPC[4].u.structure->ref();
+ return;
+ }
+
+ // These instructions don't ref their Structures.
+ ASSERT(vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id) || vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id) || vPC[0].u.opcode == interpreter->getOpcode(op_get_by_id_generic) || vPC[0].u.opcode == interpreter->getOpcode(op_put_by_id_generic));
+}
+
+void CodeBlock::markAggregate(MarkStack& markStack)
+{
+ for (size_t i = 0; i < m_constantRegisters.size(); ++i)
+ markStack.append(m_constantRegisters[i].jsValue());
+ for (size_t i = 0; i < m_functionExprs.size(); ++i)
+ m_functionExprs[i]->markAggregate(markStack);
+ for (size_t i = 0; i < m_functionDecls.size(); ++i)
+ m_functionDecls[i]->markAggregate(markStack);
+}
+
+bool CodeBlock::reparseForExceptionInfoIfNecessary(CallFrame* callFrame)
+{
+ if (m_exceptionInfo)
+ return true;
+
+ ASSERT(!m_rareData || !m_rareData->m_exceptionHandlers.size());
+ ScopeChainNode* scopeChain = callFrame->scopeChain();
+ if (m_needsFullScopeChain) {
+ ScopeChain sc(scopeChain);
+ int scopeDelta = sc.localDepth();
+ if (m_codeType == EvalCode)
+ scopeDelta -= static_cast<EvalCodeBlock*>(this)->baseScopeDepth();
+ else if (m_codeType == FunctionCode)
+ scopeDelta++; // Compilation of function code assumes activation is not on the scope chain yet.
+ ASSERT(scopeDelta >= 0);
+ while (scopeDelta--)
+ scopeChain = scopeChain->next;
+ }
+
+ m_exceptionInfo = m_ownerExecutable->reparseExceptionInfo(m_globalData, scopeChain, this);
+ return m_exceptionInfo;
+}
+
+HandlerInfo* CodeBlock::handlerForBytecodeOffset(unsigned bytecodeOffset)
+{
+ ASSERT(bytecodeOffset < m_instructionCount);
+
+ if (!m_rareData)
+ return 0;
+
+ Vector<HandlerInfo>& exceptionHandlers = m_rareData->m_exceptionHandlers;
+ for (size_t i = 0; i < exceptionHandlers.size(); ++i) {
+ // Handlers are ordered innermost first, so the first handler we encounter
+ // that contains the source address is the correct handler to use.
+ if (exceptionHandlers[i].start <= bytecodeOffset && exceptionHandlers[i].end >= bytecodeOffset)
+ return &exceptionHandlers[i];
+ }
+
+ return 0;
+}
+
+int CodeBlock::lineNumberForBytecodeOffset(CallFrame* callFrame, unsigned bytecodeOffset)
+{
+ ASSERT(bytecodeOffset < m_instructionCount);
+
+ if (!reparseForExceptionInfoIfNecessary(callFrame) || !m_exceptionInfo->m_lineInfo.size())
+ return m_ownerExecutable->source().firstLine(); // Empty function or unable to reparse
+
+ int low = 0;
+ int high = m_exceptionInfo->m_lineInfo.size();
+ while (low < high) {
+ int mid = low + (high - low) / 2;
+ if (m_exceptionInfo->m_lineInfo[mid].instructionOffset <= bytecodeOffset)
+ low = mid + 1;
+ else
+ high = mid;
+ }
+
+ if (!low)
+ return m_ownerExecutable->source().firstLine();
+ return m_exceptionInfo->m_lineInfo[low - 1].lineNumber;
+}
+
+int CodeBlock::expressionRangeForBytecodeOffset(CallFrame* callFrame, unsigned bytecodeOffset, int& divot, int& startOffset, int& endOffset)
+{
+ ASSERT(bytecodeOffset < m_instructionCount);
+
+ if (!reparseForExceptionInfoIfNecessary(callFrame) || !m_exceptionInfo->m_expressionInfo.size()) {
+ // We didn't think anything could throw. Apparently we were wrong.
+ // Alternatively something went wrong when trying to reparse
+ startOffset = 0;
+ endOffset = 0;
+ divot = 0;
+ return lineNumberForBytecodeOffset(callFrame, bytecodeOffset);
+ }
+
+ int low = 0;
+ int high = m_exceptionInfo->m_expressionInfo.size();
+ while (low < high) {
+ int mid = low + (high - low) / 2;
+ if (m_exceptionInfo->m_expressionInfo[mid].instructionOffset <= bytecodeOffset)
+ low = mid + 1;
+ else
+ high = mid;
+ }
+
+ ASSERT(low);
+ if (!low) {
+ startOffset = 0;
+ endOffset = 0;
+ divot = 0;
+ return lineNumberForBytecodeOffset(callFrame, bytecodeOffset);
+ }
+
+ startOffset = m_exceptionInfo->m_expressionInfo[low - 1].startOffset;
+ endOffset = m_exceptionInfo->m_expressionInfo[low - 1].endOffset;
+ divot = m_exceptionInfo->m_expressionInfo[low - 1].divotPoint + m_sourceOffset;
+ return lineNumberForBytecodeOffset(callFrame, bytecodeOffset);
+}
+
+bool CodeBlock::getByIdExceptionInfoForBytecodeOffset(CallFrame* callFrame, unsigned bytecodeOffset, OpcodeID& opcodeID)
+{
+ ASSERT(bytecodeOffset < m_instructionCount);
+
+ if (!reparseForExceptionInfoIfNecessary(callFrame) || !m_exceptionInfo->m_getByIdExceptionInfo.size())
+ return false;
+
+ int low = 0;
+ int high = m_exceptionInfo->m_getByIdExceptionInfo.size();
+ while (low < high) {
+ int mid = low + (high - low) / 2;
+ if (m_exceptionInfo->m_getByIdExceptionInfo[mid].bytecodeOffset <= bytecodeOffset)
+ low = mid + 1;
+ else
+ high = mid;
+ }
+
+ if (!low || m_exceptionInfo->m_getByIdExceptionInfo[low - 1].bytecodeOffset != bytecodeOffset)
+ return false;
+
+ opcodeID = m_exceptionInfo->m_getByIdExceptionInfo[low - 1].isOpCreateThis ? op_create_this : op_instanceof;
+ return true;
+}
+
+#if ENABLE(JIT)
+bool CodeBlock::functionRegisterForBytecodeOffset(unsigned bytecodeOffset, int& functionRegisterIndex)
+{
+ ASSERT(bytecodeOffset < m_instructionCount);
+
+ if (!m_rareData || !m_rareData->m_functionRegisterInfos.size())
+ return false;
+
+ int low = 0;
+ int high = m_rareData->m_functionRegisterInfos.size();
+ while (low < high) {
+ int mid = low + (high - low) / 2;
+ if (m_rareData->m_functionRegisterInfos[mid].bytecodeOffset <= bytecodeOffset)
+ low = mid + 1;
+ else
+ high = mid;
+ }
+
+ if (!low || m_rareData->m_functionRegisterInfos[low - 1].bytecodeOffset != bytecodeOffset)
+ return false;
+
+ functionRegisterIndex = m_rareData->m_functionRegisterInfos[low - 1].functionRegisterIndex;
+ return true;
+}
+#endif
+
+#if ENABLE(INTERPRETER)
+bool CodeBlock::hasGlobalResolveInstructionAtBytecodeOffset(unsigned bytecodeOffset)
+{
+ if (m_globalResolveInstructions.isEmpty())
+ return false;
+
+ int low = 0;
+ int high = m_globalResolveInstructions.size();
+ while (low < high) {
+ int mid = low + (high - low) / 2;
+ if (m_globalResolveInstructions[mid] <= bytecodeOffset)
+ low = mid + 1;
+ else
+ high = mid;
+ }
+
+ if (!low || m_globalResolveInstructions[low - 1] != bytecodeOffset)
+ return false;
+ return true;
+}
+#endif
+#if ENABLE(JIT)
+bool CodeBlock::hasGlobalResolveInfoAtBytecodeOffset(unsigned bytecodeOffset)
+{
+ if (m_globalResolveInfos.isEmpty())
+ return false;
+
+ int low = 0;
+ int high = m_globalResolveInfos.size();
+ while (low < high) {
+ int mid = low + (high - low) / 2;
+ if (m_globalResolveInfos[mid].bytecodeOffset <= bytecodeOffset)
+ low = mid + 1;
+ else
+ high = mid;
+ }
+
+ if (!low || m_globalResolveInfos[low - 1].bytecodeOffset != bytecodeOffset)
+ return false;
+ return true;
+}
+#endif
+
+void CodeBlock::shrinkToFit()
+{
+ m_instructions.shrinkToFit();
+
+#if ENABLE(INTERPRETER)
+ m_propertyAccessInstructions.shrinkToFit();
+ m_globalResolveInstructions.shrinkToFit();
+#endif
+#if ENABLE(JIT)
+ m_structureStubInfos.shrinkToFit();
+ m_globalResolveInfos.shrinkToFit();
+ m_callLinkInfos.shrinkToFit();
+ m_linkedCallerList.shrinkToFit();
+#endif
+
+ m_identifiers.shrinkToFit();
+ m_functionDecls.shrinkToFit();
+ m_functionExprs.shrinkToFit();
+ m_constantRegisters.shrinkToFit();
+
+ if (m_exceptionInfo) {
+ m_exceptionInfo->m_expressionInfo.shrinkToFit();
+ m_exceptionInfo->m_lineInfo.shrinkToFit();
+ m_exceptionInfo->m_getByIdExceptionInfo.shrinkToFit();
+ }
+
+ if (m_rareData) {
+ m_rareData->m_exceptionHandlers.shrinkToFit();
+ m_rareData->m_regexps.shrinkToFit();
+ m_rareData->m_immediateSwitchJumpTables.shrinkToFit();
+ m_rareData->m_characterSwitchJumpTables.shrinkToFit();
+ m_rareData->m_stringSwitchJumpTables.shrinkToFit();
+#if ENABLE(JIT)
+ m_rareData->m_functionRegisterInfos.shrinkToFit();
+#endif
+ }
+}
+
+} // namespace JSC