libAnalysis: Add a case for TypeAliasDecl in CFGRecStmtDeclVisitor.
Neither of the current clients of CFGRecStmtDeclVisitor are doing
anything with typedefs, so I assume type aliases (C++11 "using")
can be safely ignored. This was causing assertion failures in
the analyzer.
<rdar://problem/13228440>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175335 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h b/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h
index dd6de6e..2bf3eda 100644
--- a/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h
+++ b/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h
@@ -63,6 +63,7 @@
DISPATCH_CASE(ImplicitParam)
DISPATCH_CASE(EnumConstant)
DISPATCH_CASE(Typedef)
+ DISPATCH_CASE(TypeAlias)
DISPATCH_CASE(Record) // FIXME: Refine. VisitStructDecl?
DISPATCH_CASE(CXXRecord)
DISPATCH_CASE(Enum)
@@ -82,6 +83,7 @@
DEFAULT_DISPATCH(ImplicitParam)
DEFAULT_DISPATCH(EnumConstant)
DEFAULT_DISPATCH(Typedef)
+ DEFAULT_DISPATCH(TypeAlias)
DEFAULT_DISPATCH(Record)
DEFAULT_DISPATCH(Enum)
DEFAULT_DISPATCH(Field)
diff --git a/test/Analysis/dead-stores.cpp b/test/Analysis/dead-stores.cpp
index 86d84f0..e1a034b 100644
--- a/test/Analysis/dead-stores.cpp
+++ b/test/Analysis/dead-stores.cpp
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -analyze -analyzer-checker=deadcode.DeadStores -verify -Wno-unreachable-code %s
-// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -analyze -analyzer-store=region -analyzer-constraints=range -analyzer-checker=deadcode.DeadStores -verify -Wno-unreachable-code %s
+// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -std=c++11 -analyze -analyzer-checker=deadcode.DeadStores -verify -Wno-unreachable-code %s
+// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -std=c++11 -analyze -analyzer-store=region -analyzer-constraints=range -analyzer-checker=deadcode.DeadStores -verify -Wno-unreachable-code %s
//===----------------------------------------------------------------------===//
// Basic dead store checking (but in C++ mode).
@@ -149,3 +149,10 @@
}
catch (void *) {}
}
+
+
+void testCXX11Using() {
+ using Int = int;
+ Int value;
+ value = 1; // expected-warning {{never read}}
+}