This is an archive of the discontinued LLVM Phabricator instance.

Show First 20 Lines • Show All 1,119 Lines • ▼ Show 20 Lines	for (auto Incoming : zip(PN->blocks(), PN->incoming_values())) {
// split the edge in instcombine, we have to bail out.		// split the edge in instcombine, we have to bail out.
return nullptr;		return nullptr;
}		}

// If the incoming value is a PHI node before a catchswitch, we cannot		// If the incoming value is a PHI node before a catchswitch, we cannot
// extract the value within that BB because we cannot insert any non-PHI		// extract the value within that BB because we cannot insert any non-PHI
// instructions in the BB.		// instructions in the BB.
for (auto *Pred : PN->blocks())		for (auto *Pred : PN->blocks())
if (isa<CatchSwitchInst>(Pred->getFirstNonPHI()))		if (Pred->getFirstInsertionPt() == Pred->end())
return nullptr;		return nullptr;

for (User *U : PN->users()) {		for (User *U : PN->users()) {
Instruction *UserI = cast<Instruction>(U);		Instruction *UserI = cast<Instruction>(U);

// If the user is a PHI, inspect its uses recursively.		// If the user is a PHI, inspect its uses recursively.
if (PHINode *UserPN = dyn_cast<PHINode>(UserI)) {		if (PHINode *UserPN = dyn_cast<PHINode>(UserI)) {
if (PHIsInspected.insert(UserPN).second)		if (PHIsInspected.insert(UserPN).second)
▲ Show 20 Lines • Show All 421 Lines • Show Last 20 Lines

[InstCombine] Improve check for catchswitch BBs (NFC)ClosedPublic