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authorRoman Divacky <rdivacky@FreeBSD.org>2009-12-15 18:09:07 +0000
committerRoman Divacky <rdivacky@FreeBSD.org>2009-12-15 18:09:07 +0000
commit571945e6affd20b19264ec22495da418d0fbdbb4 (patch)
tree076117cdf3579003f07cad4cdf0593347ce58150 /include/llvm/CodeGen/LiveVariables.h
parent06f9d4012fb8acea3e9861d5722b5965dbb724d9 (diff)
Notes
Diffstat (limited to 'include/llvm/CodeGen/LiveVariables.h')
-rw-r--r--include/llvm/CodeGen/LiveVariables.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/LiveVariables.h b/include/llvm/CodeGen/LiveVariables.h
index 39a4b89f54db..a7bf600e1e62 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