bool invalidateBailedOutScripts() {
RootedScript script(cx_, fun_->toFunction()->nonLazyScript());
// Sometimes the script is collected or invalidated already,
// for example when a full GC runs at an inconvenient time.
if (!script->hasParallelIonScript()) {
JS_ASSERT(hasNoPendingInvalidations());
return true;
}
IonScript *ion = script->parallelIonScript();
JS_ASSERT(pendingInvalidations.length() == ion->parallelInvalidatedScriptEntries());
Vector<types::RecompileInfo> invalid(cx_);
for (uint32_t i = 0; i < pendingInvalidations.length(); i++) {
JSScript *script = pendingInvalidations[i];
if (script && !hasScript(invalid, script)) {
JS_ASSERT(script->hasParallelIonScript());
if (!invalid.append(script->parallelIonScript()->recompileInfo()))
return false;
ion->parallelInvalidatedScriptList()[i] = script;
}
pendingInvalidations[i] = NULL;
}
Invalidate(cx_, invalid);
return true;
}
virtual bool parallel(ForkJoinSlice &slice) {
#ifndef JS_ION
JS_NOT_REACHED("Parallel execution without ion");
return false;
#else
Spew(SpewOps, "Up");
// Make a new IonContext for the slice, which is needed if we need to
// re-enter the VM.
IonContext icx(cx_, NULL);
JS_ASSERT(pendingInvalidations[slice.sliceId] == NULL);
JS_ASSERT(fun_->isFunction());
RootedFunction callee(cx_, fun_->toFunction());
if (!callee->nonLazyScript()->hasParallelIonScript()) {
// Sometimes, particularly with GCZeal, the parallel ion
// script can be collected between starting the parallel
// op and reaching this point. In that case, we just fail
// and fallback.
Spew(SpewOps, "Down (Script no longer present)");
return false;
}
ParallelIonInvoke<3> fii(cx_, callee, 3);
fii.args[0] = Int32Value(slice.sliceId);
fii.args[1] = Int32Value(slice.numSlices);
fii.args[2] = BooleanValue(false);
bool ok = fii.invoke(cx_);
JS_ASSERT(ok == !slice.abortedScript);
if (!ok) {
JSScript *script = slice.abortedScript;
Spew(SpewBailouts, "Aborted script: %p (hasParallelIonScript? %d)",
script, script->hasParallelIonScript());
JS_ASSERT(script->hasParallelIonScript());
pendingInvalidations[slice.sliceId] = script;
}
Spew(SpewOps, "Down");
return ok;
#endif // JS_ION
}
bool
js::ParallelDo::invalidateBailedOutScripts()
{
RootedScript script(cx_, fun_->toFunction()->nonLazyScript());
// Sometimes the script is collected or invalidated already,
// for example when a full GC runs at an inconvenient time.
if (!script->hasParallelIonScript()) {
return true;
}
Vector<types::RecompileInfo> invalid(cx_);
for (uint32_t i = 0; i < bailoutRecords.length(); i++) {
JSScript *script = bailoutRecords[i].topScript;
// No script to invalidate.
if (!script || !script->hasParallelIonScript())
continue;
switch (bailoutRecords[i].cause) {
// An interrupt is not the fault of the script, so don't
// invalidate it.
case ParallelBailoutInterrupt: continue;
// An illegal write will not be made legal by invalidation.
case ParallelBailoutIllegalWrite: continue;
// For other cases, consider invalidation.
default: break;
}
// Already invalidated.
if (hasScript(invalid, script))
continue;
if (!invalid.append(script->parallelIonScript()->recompileInfo()))
return false;
}
Invalidate(cx_, invalid);
return true;
}