DVFuncletsVec Func::getDVFunclets() const {
DVFuncletsVec dvs;
int nParams = numParams();
for (int i = 0; i < nParams; ++i) {
const ParamInfo& pi = params()[i];
if (pi.hasDefaultValue()) {
dvs.push_back(std::make_pair(i, pi.funcletOff));
}
}
return dvs;
}
TCA emitCallArrayPrologue(Func* func, DVFuncletsVec& dvs) {
auto& mainCode = mcg->code.main();
auto& stubsCode = mcg->code.stubs();
Asm a { mainCode };
TCA start = mainCode.frontier();
if (dvs.size() == 1) {
a. cmpl (dvs[0].first, rVmFp[AROFF(m_numArgsAndGenCtorFlags)]);
emitBindJcc(mainCode, stubsCode, CC_LE, SrcKey(func, dvs[0].second, false));
emitBindJmp(mainCode, stubsCode, SrcKey(func, func->base(), false));
} else {
a. loadl (rVmFp[AROFF(m_numArgsAndGenCtorFlags)], reg::eax);
for (unsigned i = 0; i < dvs.size(); i++) {
a. cmpl (dvs[i].first, reg::eax);
emitBindJcc(mainCode, stubsCode, CC_LE,
SrcKey(func, dvs[i].second, false));
}
emitBindJmp(mainCode, stubsCode, SrcKey(func, func->base(), false));
}
return start;
}
TCA emitCallArrayPrologue(Func* func, DVFuncletsVec& dvs) {
auto& mainCode = mcg->code.main();
auto& frozenCode = mcg->code.frozen();
vixl::MacroAssembler a { mainCode };
vixl::MacroAssembler afrozen { frozenCode };
TCA start = mainCode.frontier();
a. Ldr (rAsm.W(), rVmFp[AROFF(m_numArgsAndFlags)]);
for (auto i = 0; i < dvs.size(); ++i) {
a. Cmp (rAsm.W(), dvs[i].first);
emitBindJ(mainCode, frozenCode, CC_LE, SrcKey(func, dvs[i].second, false));
}
emitBindJ(mainCode, frozenCode, CC_None, SrcKey(func, func->base(), false));
mcg->cgFixups().process(nullptr);
return start;
}
