PreciseJumpTargetsInlines.h [plain text]
#pragma once
#include "InterpreterInlines.h"
#include "Opcode.h"
#include "PreciseJumpTargets.h"
namespace JSC {
template<typename Block, typename Instruction, typename Function>
inline void extractStoredJumpTargetsForBytecodeOffset(Block* codeBlock, Instruction* instructionsBegin, unsigned bytecodeOffset, Function function)
{
OpcodeID opcodeID = Interpreter::getOpcodeID(instructionsBegin[bytecodeOffset]);
Instruction* current = instructionsBegin + bytecodeOffset;
switch (opcodeID) {
case op_jmp:
function(current[1].u.operand);
break;
case op_jtrue:
case op_jfalse:
case op_jeq_null:
case op_jneq_null:
function(current[2].u.operand);
break;
case op_jneq_ptr:
case op_jless:
case op_jlesseq:
case op_jgreater:
case op_jgreatereq:
case op_jnless:
case op_jnlesseq:
case op_jngreater:
case op_jngreatereq:
function(current[3].u.operand);
break;
case op_switch_imm:
case op_switch_char: {
auto& table = codeBlock->switchJumpTable(current[1].u.operand);
for (unsigned i = table.branchOffsets.size(); i--;)
function(table.branchOffsets[i]);
function(current[2].u.operand);
break;
}
case op_switch_string: {
auto& table = codeBlock->stringSwitchJumpTable(current[1].u.operand);
auto iter = table.offsetTable.begin();
auto end = table.offsetTable.end();
for (; iter != end; ++iter)
function(iter->value.branchOffset);
function(current[2].u.operand);
break;
}
default:
break;
}
}
}