[cfe-commits] r153283 - in /cfe/trunk: include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h lib/StaticAnalyzer/Core/ExprEngine.cpp test/Analysis/misc-ps-region-store.cpp
Ted Kremenek
kremenek at apple.com
Thu Mar 22 14:42:33 PDT 2012
Author: kremenek
Date: Thu Mar 22 16:42:31 2012
New Revision: 153283
URL: http://llvm.org/viewvc/llvm-project?rev=153283&view=rev
Log:
Fix static analyzer crash on code taking the address of a field. Fixes PR 11146.
Modified:
cfe/trunk/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h
cfe/trunk/lib/StaticAnalyzer/Core/ExprEngine.cpp
cfe/trunk/test/Analysis/misc-ps-region-store.cpp
Modified: cfe/trunk/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h?rev=153283&r1=153282&r2=153283&view=diff
==============================================================================
--- cfe/trunk/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h (original)
+++ cfe/trunk/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h Thu Mar 22 16:42:31 2012
@@ -66,6 +66,7 @@
DISPATCH_CASE(Record) // FIXME: Refine. VisitStructDecl?
DISPATCH_CASE(CXXRecord)
DISPATCH_CASE(Enum)
+ DISPATCH_CASE(Field)
DISPATCH_CASE(UsingDirective)
DISPATCH_CASE(Using)
default:
@@ -82,6 +83,7 @@
DEFAULT_DISPATCH(Typedef)
DEFAULT_DISPATCH(Record)
DEFAULT_DISPATCH(Enum)
+ DEFAULT_DISPATCH(Field)
DEFAULT_DISPATCH(ObjCInterface)
DEFAULT_DISPATCH(ObjCMethod)
DEFAULT_DISPATCH(ObjCProtocol)
Modified: cfe/trunk/lib/StaticAnalyzer/Core/ExprEngine.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/StaticAnalyzer/Core/ExprEngine.cpp?rev=153283&r1=153282&r2=153283&view=diff
==============================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/ExprEngine.cpp (original)
+++ cfe/trunk/lib/StaticAnalyzer/Core/ExprEngine.cpp Thu Mar 22 16:42:31 2012
@@ -1384,6 +1384,13 @@
ProgramPoint::PostLValueKind);
return;
}
+ if (isa<FieldDecl>(D)) {
+ // FIXME: Compute lvalue of fields.
+ Bldr.generateNode(Ex, Pred, state->BindExpr(Ex, LCtx, UnknownVal()),
+ false, 0, ProgramPoint::PostLValueKind);
+ return;
+ }
+
assert (false &&
"ValueDecl support for this ValueDecl not implemented.");
}
Modified: cfe/trunk/test/Analysis/misc-ps-region-store.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Analysis/misc-ps-region-store.cpp?rev=153283&r1=153282&r2=153283&view=diff
==============================================================================
--- cfe/trunk/test/Analysis/misc-ps-region-store.cpp (original)
+++ cfe/trunk/test/Analysis/misc-ps-region-store.cpp Thu Mar 22 16:42:31 2012
@@ -552,3 +552,19 @@
}
}
+// Test handling taking the address of a field. While the analyzer
+// currently doesn't do anything intelligent here, this previously
+// resulted in a crash.
+class PR11146 {
+public:
+ struct Entry;
+ void baz();
+};
+
+struct PR11146::Entry {
+ int x;
+};
+
+void PR11146::baz() {
+ (void) &Entry::x;
+}
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