[analyzer] [NFC] Remove unused parameters, as found by -Wunused-parameter

Differential Revision: https://reviews.llvm.org/D52640

llvm-svn: 343353

1 files changed, 2 insertions, 3 deletions

diff --git a/clang/lib/StaticAnalyzer/Checkers/ValistChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/ValistChecker.cpp
index bd657340fcf..0812a1e3e5c 100644
--- a/clang/lib/StaticAnalyzer/Checkers/ValistChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/ValistChecker.cpp
@@ -90,7 +90,6 @@ private:
       return std::make_shared<PathDiagnosticEventPiece>(L, BR.getDescription(), false);
     }
     std::shared_ptr<PathDiagnosticPiece> VisitNode(const ExplodedNode *N,
-                                                   const ExplodedNode *PrevN,
                                                    BugReporterContext &BRC,
                                                    BugReport &BR) override;
 
@@ -376,10 +375,10 @@ void ValistChecker::checkVAListEndCall(const CallEvent &Call,
 }
 
 std::shared_ptr<PathDiagnosticPiece> ValistChecker::ValistBugVisitor::VisitNode(
-    const ExplodedNode *N, const ExplodedNode *PrevN, BugReporterContext &BRC,
+    const ExplodedNode *N, BugReporterContext &BRC,
     BugReport &) {
   ProgramStateRef State = N->getState();
-  ProgramStateRef StatePrev = PrevN->getState();
+  ProgramStateRef StatePrev = N->getFirstPred()->getState();
 
   const Stmt *S = PathDiagnosticLocation::getStmt(N);
   if (!S)