it just deletes empty MBB's. Soon it will do more :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30941
91177308-0d34-0410-b5e6-
96231b3b80d8
// Insert prolog/epilog code. Eliminate abstract frame index references...
PM.add(createPrologEpilogCodeInserter());
+ // Branch folding must be run after regalloc and prolog/epilog insertion.
+ PM.add(createBranchFoldingPass());
+
if (PrintMachineCode) // Print the register-allocated code
PM.add(createMachineFunctionPrinterPass(&std::cerr));