continue;
}
- // If the header is a landing pad, then we don't want to hoist instructions
- // out of it. This can happen with SjLj exception handling which has a
- // dispatch table as the landing pad.
- if (CurLoop->getHeader()->isLandingPad()) continue;
-
if (!PreRegAlloc)
HoistRegionPostRA();
else {
const std::vector<MachineBasicBlock*> Blocks = CurLoop->getBlocks();
for (unsigned i = 0, e = Blocks.size(); i != e; ++i) {
MachineBasicBlock *BB = Blocks[i];
+
+ // If the header of the loop containing this basic block is a landing pad,
+ // then don't try to hoist instructions out of this loop.
+ const MachineLoop *ML = MLI->getLoopFor(BB);
+ if (ML && ML->getHeader()->isLandingPad()) continue;
+
// Conservatively treat live-in's as an external def.
// FIXME: That means a reload that're reused in successor block(s) will not
// be LICM'ed.
assert(N != 0 && "Null dominator tree node?");
MachineBasicBlock *BB = N->getBlock();
+ // If the header of the loop containing this basic block is a landing pad,
+ // then don't try to hoist instructions out of this loop.
+ const MachineLoop *ML = MLI->getLoopFor(BB);
+ if (ML && ML->getHeader()->isLandingPad()) return;
+
// If this subregion is not in the top level loop at all, exit.
if (!CurLoop->contains(BB)) return;