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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-12-01 17:13:31 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-12-01 17:13:31 +0000 |
| commit | 8f72235a77e7ac262471936ea0ad2a3467d18871 (patch) | |
| tree | 1bfd1138801c664b93a54adaa57c725cc7ee9d7c /include/llvm/CodeGen/LiveVariables.h | |
| parent | 074fe8324dd9533f1cd210091b15719ff67f49c2 (diff) | |
Move PHIElimination::isLiveOut method to LiveVariables.
We want LiveVariables clients to use methods rather than accessing the
getVarInfo data structure directly. That way it will be possible to change the
LiveVariables representation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90240 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen/LiveVariables.h')
| -rw-r--r-- | include/llvm/CodeGen/LiveVariables.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/LiveVariables.h b/include/llvm/CodeGen/LiveVariables.h index 39a4b89f54..a7bf600e1e 100644 --- a/include/llvm/CodeGen/LiveVariables.h +++ b/include/llvm/CodeGen/LiveVariables.h @@ -283,6 +283,11 @@ public: return getVarInfo(Reg).isLiveIn(MBB, Reg, *MRI); } + /// isLiveOut - Determine if Reg is live out from MBB, when not considering + /// PHI nodes. This means that Reg is either killed by a successor block or + /// passed through one. + bool isLiveOut(unsigned Reg, const MachineBasicBlock &MBB); + /// addNewBlock - Add a new basic block BB between DomBB and SuccBB. All /// variables that are live out of DomBB and live into SuccBB will be marked /// as passing live through BB. This method assumes that the machine code is |