return false;
// Now that we know the removal is safe, remove the loop by changing the
- // branch from the preheader to go to the single exiting block.
+ // branch from the preheader to go to the single exit block.
BasicBlock* exitBlock = exitBlocks[0];
+ BasicBlock* exitingBlock = exitingBlocks[0];
// Because we're deleting a large chunk of code at once, the sequence in which
// we remove things is very important to avoid invalidation issues. Don't
// the preheader instead of the exiting block.
BasicBlock::iterator BI = exitBlock->begin();
while (PHINode* P = dyn_cast<PHINode>(BI)) {
- P->replaceUsesOfWith(exitBlock, preheader);
+ P->replaceUsesOfWith(exitingBlock, preheader);
BI++;
}
// NOTE: This iteration is safe because erasing the block does not remove its
// entry from the loop's block list. We do that in the next section.
for (Loop::block_iterator LI = L->block_begin(), LE = L->block_end();
- LI != LE; ++LI)
+ LI != LE; ++LI) {
+ for (Value::use_iterator UI = (*LI)->use_begin(), UE = (*LI)->use_end();
+ UI != UE; ++UI)
+ (*UI)->dump();
(*LI)->eraseFromParent();
+ }
// Finally, the blocks from loopinfo. This has to happen late because
// otherwise our loop iterators won't work.