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-rw-r--r--llvm/lib/CodeGen/RDFLiveness.cpp6
1 files changed, 2 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/RDFLiveness.cpp b/llvm/lib/CodeGen/RDFLiveness.cpp
index d704cf7b3213..2fd947086b4d 100644
--- a/llvm/lib/CodeGen/RDFLiveness.cpp
+++ b/llvm/lib/CodeGen/RDFLiveness.cpp
@@ -22,6 +22,7 @@
// and Embedded Architectures and Compilers", 8 (4),
// <10.1145/2086696.2086706>. <hal-00647369>
//
+#include "llvm/CodeGen/RDFLiveness.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/STLExtras.h"
@@ -32,14 +33,12 @@
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/CodeGen/RDFLiveness.h"
#include "llvm/CodeGen/RDFGraph.h"
#include "llvm/CodeGen/RDFRegisters.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/MC/LaneBitmask.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
@@ -341,9 +340,8 @@ Liveness::getAllReachingDefsRecImpl(RegisterRef RefRR, NodeAddr<RefNode*> RefA,
if (!(DA.Addr->getFlags() & NodeAttrs::PhiRef))
continue;
NodeAddr<PhiNode*> PA = DA.Addr->getOwner(DFG);
- if (Visited.count(PA.Id))
+ if (!Visited.insert(PA.Id).second)
continue;
- Visited.insert(PA.Id);
// Go over all phi uses and get the reaching defs for each use.
for (auto U : PA.Addr->members_if(DFG.IsRef<NodeAttrs::Use>, DFG)) {
const auto &T = getAllReachingDefsRecImpl(RefRR, U, Visited, TmpDefs,