Now that MachineFunction/MachineBasicBlock keep a mapping of blocks to ID #'s
use them instead of a local LiveVariables numbering


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14523 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index cdcebfc..f687675 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -292,7 +292,7 @@
     if (interval.empty()) {
         for (unsigned i = 0, e = vi.AliveBlocks.size(); i != e; ++i) {
             if (vi.AliveBlocks[i]) {
-                MachineBasicBlock* mbb = lv_->getIndexMachineBasicBlock(i);
+                MachineBasicBlock* mbb = mf_->getBlockNumbered(i);
                 if (!mbb->empty()) {
                     interval.addRange(
                         getInstructionIndex(&mbb->front()),