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Move post-RA scheduling before branch folding for now, because branch

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folding's tail merging doesn't currently preserve liveness information
which post-RA scheduling requires.

llvm-svn: 61183
This commit is contained in:
Dan Gohman 2008-12-18 01:36:42 +00:00
parent 9a489bf18a
commit 6b4f972c9f
1 changed files with 7 additions and 7 deletions
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14
lib/CodeGen/LLVMTargetMachine.cpp
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@ -222,13 +222,6 @@ 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));
@ -240,6 +233,13 @@ 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()));
if (PrintMachineCode)
PM.add(createMachineFunctionPrinterPass(cerr));
PM.add(createGCMachineCodeAnalysisPass());
if (PrintMachineCode)