Added simple hack to reduce redundant warnings from the checker:
Cache the location of the error. Don't emit the same
warning for the same error type that occurs at the same program
location but along a different path.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47727 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Analysis/GRSimpleVals.cpp b/Analysis/GRSimpleVals.cpp
index 8b5e3c8..366ffb7 100644
--- a/Analysis/GRSimpleVals.cpp
+++ b/Analysis/GRSimpleVals.cpp
@@ -32,6 +32,8 @@
bool isFirst = true;
unsigned ErrorDiag;
+ llvm::SmallPtrSet<void*,10> CachedErrors;
+
for (; I != E; ++I) {
@@ -39,6 +41,18 @@
isFirst = false;
ErrorDiag = Diag.getCustomDiagID(Diagnostic::Warning, msg);
}
+ else {
+
+ // HACK: Cache the location of the error. Don't emit the same
+ // warning for the same error type that occurs at the same program
+ // location but along a different path.
+ void* p = (*I)->getLocation().getRawData();
+
+ if (CachedErrors.count(p))
+ continue;
+
+ CachedErrors.insert(p);
+ }
const PostStmt& L = cast<PostStmt>((*I)->getLocation());
Expr* Exp = cast<Expr>(L.getStmt());