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add the branch folding pass as a late cleanup pass for all targets. For now

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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
This commit is contained in:
Chris Lattner 2006-10-13 20:45:56 +00:00
parent b2cd261279
commit 4a84ad7a2b
1 changed files with 3 additions and 0 deletions
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3
lib/CodeGen/LLVMTargetMachine.cpp
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@ -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));