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Run post-RA scheduling after branch folding, as it tends to

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obscure tail-merging opportunities.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59967 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2008-11-24 17:22:52 +00:00
parent f003276ee6
commit cb72dd6776
1 changed files with 7 additions and 4 deletions
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11
lib/CodeGen/LLVMTargetMachine.cpp
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@ -222,6 +222,13 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, bool Fast) {
// Insert prolog/epilog code. Eliminate abstract frame index references...
PM.add(createPrologEpilogCodeInserter());
if (PrintMachineCode)
PM.add(createMachineFunctionPrinterPass(cerr));
// Branch folding must be run after regalloc and prolog/epilog insertion.
if (!Fast)
PM.add(createBranchFoldingPass(getEnableTailMergeDefault()));
if (PrintMachineCode)
PM.add(createMachineFunctionPrinterPass(cerr));
@ -233,10 +240,6 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, bool Fast) {
PM.add(createMachineFunctionPrinterPass(cerr));
}
// Branch folding must be run after regalloc and prolog/epilog insertion.
if (!Fast)
PM.add(createBranchFoldingPass(getEnableTailMergeDefault()));
PM.add(createGCMachineCodeAnalysisPass());
if (PrintMachineCode)