diff options
| author | Dan Gohman <gohman@apple.com> | 2009-07-31 18:16:33 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-07-31 18:16:33 +0000 |
| commit | ad2afc2a421a0e41603d5eee412d4d8c77e9bc1c (patch) | |
| tree | f06c032e6c95e27a621685fb4a2a2f07469ca076 /lib/CodeGen/LiveVariables.cpp | |
| parent | 56594f98848ac6d1885662644b5652c04c0d0831 (diff) | |
Reapply r77654 with a fix: MachineFunctionPass's getAnalysisUsage
shouldn't do AU.setPreservesCFG(), because even though CodeGen passes
don't modify the LLVM IR CFG, they may modify the MachineFunction CFG,
and passes like MachineLoop are registered with isCFGOnly set to true.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77691 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveVariables.cpp')
| -rw-r--r-- | lib/CodeGen/LiveVariables.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp index bb72d80cb6..20345669ea 100644 --- a/lib/CodeGen/LiveVariables.cpp +++ b/lib/CodeGen/LiveVariables.cpp @@ -48,6 +48,7 @@ static RegisterPass<LiveVariables> X("livevars", "Live Variable Analysis"); void LiveVariables::getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequiredID(UnreachableMachineBlockElimID); AU.setPreservesAll(); + MachineFunctionPass::getAnalysisUsage(AU); } void LiveVariables::VarInfo::dump() const { |