[llvm-bugs] [Bug 34309] New: Assertion failure in clang::ento::MemRegionManager::getElementRegion()

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=34309

            Bug ID: 34309
           Summary: Assertion failure in
                    clang::ento::MemRegionManager::getElementRegion()
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Static Analyzer
          Assignee: kremenek at apple.com
          Reporter: alexfh at google.com
                CC: llvm-bugs at lists.llvm.org

$ cat /tmp/getElementRegion-crash.cc
struct {
  int *n;
  bool f(unsigned &p1) { p1 = (long)n - 1; }
} b;
unsigned a;
int c;
void g() { b.f(a) && a == c; }
$ clang_tidy -checks=-*,clang-analyzer-* /tmp/getElementRegion-crash.cc --
-std=c++11 
assert.h assertion failed at llvm/tools/clang/include/clang/AST/Type.h:628 in
const clang::ExtQualsTypeCommonBase *clang::QualType::getCommonPtr() const:
!isNull() && "Cannot retrieve a NULL type pointer"
    @          0x53f0f5a  __assert_fail
    @           0x5e9065  clang::QualType::getCommonPtr()
    @           0x5ddbe9  clang::QualType::getCanonicalType()
    @          0x1b4f5cc  clang::ASTContext::getCanonicalType()
    @          0x2c50612  clang::ento::MemRegionManager::getElementRegion()
    @          0x2d07f58  (anonymous
namespace)::SimpleSValBuilder::evalBinOpLN()
    @          0x2bbbace  clang::ento::SValBuilder::evalBinOp()
    @          0x2d09ab4  (anonymous
namespace)::SimpleSValBuilder::simplifySVal()::Simplifier::VisitSymIntExpr()
    @          0x2d09692  clang::ento::SymExprVisitor<>::Visit()
    @          0x2d093ea  (anonymous
namespace)::SimpleSValBuilder::simplifySVal()::Simplifier::VisitNonLocSymbolVal()
    @          0x2d08f6b  clang::ento::SValVisitor<>::Visit()
    @          0x2d0822f  (anonymous
namespace)::SimpleSValBuilder::simplifySVal()
    @          0x2d056cc  (anonymous
namespace)::SimpleSValBuilder::evalBinOpNN()
    @          0x2bbbd92  clang::ento::SValBuilder::evalBinOp()
    @          0x2cab136  clang::ento::ExprEngine::evalBinOp()
    @          0x2cd8320  clang::ento::ExprEngine::VisitBinaryOperator()
    @          0x2ca0a91  clang::ento::ExprEngine::Visit()
    @          0x2c9dea4  clang::ento::ExprEngine::ProcessStmt()
    @          0x2c9db6a  clang::ento::ExprEngine::processCFGElement()
    @          0x2ccb526  clang::ento::CoreEngine::HandlePostStmt()
    @          0x2ccae23  clang::ento::CoreEngine::dispatchWorkItem()
    @          0x2cca9b8  clang::ento::CoreEngine::ExecuteWorkList()
    @          0x21227d5  clang::ento::ExprEngine::ExecuteWorkList()
    @          0x20cb182  (anonymous
namespace)::AnalysisConsumer::ActionExprEngine()
    @          0x20caf41  (anonymous
namespace)::AnalysisConsumer::RunPathSensitiveChecks()
    @          0x20cac05  (anonymous namespace)::AnalysisConsumer::HandleCode()
    @          0x20be323  (anonymous
namespace)::AnalysisConsumer::HandleDeclsCallGraph()
    @          0x20bc5a7  (anonymous
namespace)::AnalysisConsumer::HandleTranslationUnit()
    @          0x29d335e  clang::MultiplexConsumer::HandleTranslationUnit()

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