bool emit(Venv& env, const fallbackcc& i) {
auto const jcc =
emitSmashableJcc(*env.cb, env.meta, env.cb->frontier(), i.cc);
env.stubs.push_back({nullptr, jcc, i});
registerFallbackJump(env, jcc, i.cc);
return true;
}
bool emit(Venv& env, const fallbackcc& i) {
auto const jcc =
emitSmashableJcc(*env.cb, env.meta, env.cb->frontier(), i.cc);
env.stubs.push_back({nullptr, jcc, i});
mcg->tx().getSrcRec(i.target)->registerFallbackJump(jcc, i.cc, env.meta);
return true;
}
bool emit(Venv& env, const bindjcc& i) {
auto const jcc =
emitSmashableJcc(*env.cb, env.meta, env.cb->frontier(), i.cc);
env.stubs.push_back({nullptr, jcc, i});
setJmpTransID(env, jcc);
return true;
}
void Vgen::emit(jcc i) {
assertx(i.cc != CC_None);
if (i.targets[1] != i.targets[0]) {
if (next == i.targets[1]) {
// the taken branch is the fall-through block, invert the branch.
i = jcc{ccNegate(i.cc), i.sf, {i.targets[1], i.targets[0]}};
}
jccs.push_back({a->frontier(), i.targets[1]});
// B.cond range is +/- 1MB but this uses BR
emitSmashableJcc(*codeBlock, env.meta, kEndOfTargetChain, i.cc);
}
emit(jmp{i.targets[0]});
}
