eliminate InvalidateLabel and LabelIDList from MMI and replace
them with a counter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98462 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/UnreachableBlockElim.cpp b/lib/CodeGen/UnreachableBlockElim.cpp
index b0f0a07..7b33812 100644
--- a/lib/CodeGen/UnreachableBlockElim.cpp
+++ b/lib/CodeGen/UnreachableBlockElim.cpp
@@ -165,20 +165,8 @@
}
// Actually remove the blocks now.
- for (unsigned i = 0, e = DeadBlocks.size(); i != e; ++i) {
- MachineBasicBlock *MBB = DeadBlocks[i];
- // If there are any labels in the basic block, unregister them from
- // MachineModuleInfo.
- if (MMI && !MBB->empty()) {
- for (MachineBasicBlock::iterator I = MBB->begin(),
- E = MBB->end(); I != E; ++I) {
- if (I->isLabel())
- // The label ID # is always operand #0, an immediate.
- MMI->InvalidateLabel(I->getOperand(0).getImm());
- }
- }
- MBB->eraseFromParent();
- }
+ for (unsigned i = 0, e = DeadBlocks.size(); i != e; ++i)
+ DeadBlocks[i]->eraseFromParent();
// Cleanup PHI nodes.
for (MachineFunction::iterator I = F.begin(), E = F.end(); I != E; ++I) {