diff options
| author | Chris Lattner <sabre@nondot.org> | 2006-10-13 20:45:56 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-10-13 20:45:56 +0000 |
| commit | 4a84ad7a2bfd1795357776164e3bf80a2600d924 (patch) | |
| tree | 0772fbe79bf61d3fa6651ef9c4cac544072919e3 /lib/CodeGen/LLVMTargetMachine.cpp | |
| parent | b2cd26127973b97c3ed8d74a063e70a259369e44 (diff) | |
add the branch folding pass as a late cleanup pass for all targets. For now
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
Diffstat (limited to 'lib/CodeGen/LLVMTargetMachine.cpp')
| -rw-r--r-- | lib/CodeGen/LLVMTargetMachine.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp index 6c4544a117..18ab218456 100644 --- a/lib/CodeGen/LLVMTargetMachine.cpp +++ b/lib/CodeGen/LLVMTargetMachine.cpp @@ -63,6 +63,9 @@ bool LLVMTargetMachine::addPassesToEmitFile(FunctionPassManager &PM, // 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)); |