void MCELFStreamer::EmitBundleUnlock() {
MCSectionData *SD = getCurrentSectionData();
// Sanity checks
if (!getAssembler().isBundlingEnabled())
report_fatal_error(".bundle_unlock forbidden when bundling is disabled");
else if (!SD->isBundleLocked())
report_fatal_error(".bundle_unlock without matching lock");
else if (SD->isBundleGroupBeforeFirstInst())
report_fatal_error("Empty bundle-locked group is forbidden");
// When the -mc-relax-all flag is used, we emit instructions to fragments
// stored on a stack. When the bundle unlock is emited, we pop a fragment
// from the stack a merge it to the one below.
if (getAssembler().getRelaxAll()) {
assert(!BundleGroups.empty() && "There are no bundle groups");
MCDataFragment *DF = BundleGroups.back();
// FIXME: Use BundleGroups to track the lock state instead.
SD->setBundleLockState(MCSectionData::NotBundleLocked);
// FIXME: Use more separate fragments for nested groups.
if (!SD->isBundleLocked()) {
mergeFragment(getOrCreateDataFragment(), DF);
BundleGroups.pop_back();
delete DF;
}
if (SD->getBundleLockState() != MCSectionData::BundleLockedAlignToEnd)
getOrCreateDataFragment()->setAlignToBundleEnd(false);
} else
SD->setBundleLockState(MCSectionData::NotBundleLocked);
}
void MCELFStreamer::EmitBundleUnlock() {
MCSectionData *SD = getCurrentSectionData();
// Sanity checks
if (!getAssembler().isBundlingEnabled())
report_fatal_error(".bundle_unlock forbidden when bundling is disabled");
else if (!SD->isBundleLocked())
report_fatal_error(".bundle_unlock without matching lock");
else if (SD->isBundleGroupBeforeFirstInst())
report_fatal_error("Empty bundle-locked group is forbidden");
SD->setBundleLockState(MCSectionData::NotBundleLocked);
}
void MCELFStreamer::EmitBundleLock(bool AlignToEnd) {
MCSectionData *SD = getCurrentSectionData();
// Sanity checks
//
if (!getAssembler().isBundlingEnabled())
report_fatal_error(".bundle_lock forbidden when bundling is disabled");
if (!SD->isBundleLocked())
SD->setBundleGroupBeforeFirstInst(true);
SD->setBundleLockState(AlignToEnd ? MCSectionData::BundleLockedAlignToEnd :
MCSectionData::BundleLocked);
}
void MCELFStreamer::EmitBundleLock(bool AlignToEnd) {
MCSectionData *SD = getCurrentSectionData();
// Sanity checks
//
if (!getAssembler().isBundlingEnabled())
report_fatal_error(".bundle_lock forbidden when bundling is disabled");
if (!SD->isBundleLocked())
SD->setBundleGroupBeforeFirstInst(true);
if (getAssembler().getRelaxAll() && !SD->isBundleLocked()) {
// TODO: drop the lock state and set directly in the fragment
MCDataFragment *DF = new MCDataFragment();
BundleGroups.push_back(DF);
}
SD->setBundleLockState(AlignToEnd ? MCSectionData::BundleLockedAlignToEnd :
MCSectionData::BundleLocked);
}