Add -ffreestanding to suppress the implicit declaration of library builtins like printf and malloc. Fixes PR3586

llvm-svn: 64566

llvm-svn: 64565

Correct two files with inconsistent lines endings.

llvm-svn: 64564

which consequently caused a Seg fault. during meta-data
generation. It also addresses an issue related to
late binding of newly synthesize ivars (when we support it).

llvm-svn: 64563

llvm-svn: 64562

about, whether they are builtins or not. Use this to add the
appropriate "format" attribute to NSLog, NSLogv, asprintf, and
vasprintf, and to translate builtin attributes (from Builtins.def)
into actual attributes on the function declaration.

Use the "printf" format attribute on function declarations to
determine whether we should do format string checking, rather than
looking at an ad hoc list of builtins and "known" function names.

Be a bit more careful about when we consider a function a "builtin" in
C++.

llvm-svn: 64561

llvm-svn: 64560

llvm-svn: 64559

ConstraintManager:
- constify getSymVal()

BasicConstraintManager:
- Pull out logic that would be common to ConstraintManagers of a similar nature
  and put them in a parent class called 'SimpleConstraintManager'.

RangeConstraintManager:
- Added a new prototype ConstraintManager to track ranges of variables! This
  ConstraintManager keeps tracks of ranges of concrete integers that a symbolic
  integer may have.

AnalysisConsumer:
- Add driver option to use RangeConstraintManager with GRExprEngine-based
  analyses.

llvm-svn: 64558

llvm-svn: 64557

llvm-svn: 64556

llvm-svn: 64555

Cleanup some warning.

Remark: when struct/class are declared differently than they are defined, this make problem for VC++ since it seems to mangle class differently that struct. These error are very hard to understand and find. So please, try to keep your definition/declaration in sync.

Only tested with VS2008. hope it does not break anything. feel free to revert.

llvm-svn: 64554

llvm-svn: 64553

intrinsics to any IntrWriteArgMem intrinsics.

llvm-svn: 64551

llvm-svn: 64550

llvm-svn: 64549

llvm-svn: 64548

llvm-svn: 64547

We don't have "zero cost" exceptions for ObjC yet, so there is no codegen
support required.

llvm-svn: 64546

llvm-svn: 64545

1) implement parser and sema support for reading and verifying attribute(warnunusedresult).
2) rename hasLocalSideEffect to isUnusedResultAWarning, inverting the sense
   of its result.
3) extend isUnusedResultAWarning to directly return the loc and range 
   info that should be reported to the user.  Make it substantially more
   precise in some cases than what was previously reported.
4) teach isUnusedResultAWarning about CallExpr to decls that are 
   pure/const/warnunusedresult, fixing a fixme.
5) change warn_attribute_wrong_decl_type to not pass in english strings, instead,
   pass in integers and use %select.

llvm-svn: 64543

llvm-svn: 64542

llvm-svn: 64541

now that this no longer implies nocapture.

llvm-svn: 64540

taken advantage of anywhere.  Change the definition
of IntrWriteArgMem to no longer imply nocapture, and
explicitly add nocapture attributes everywhere (well,
not quite everywhere, because some of these intrinsics
did capture their arguments!).  Also, make clear that
the lack of other side-effects does not exclude doing
volatile loads or stores - the atomic intrinsics do
these, yet they are all marked IntrWriteArgMem (this
change is safe because nothing exploited it).

llvm-svn: 64539

Don't ignore the const attribute - we even have CG support for that. Do ignore the malloc attribute however.

llvm-svn: 64538

llvm-svn: 64537

llvm-svn: 64536

llvm-svn: 64535

symbols from an SVal.

- Fixed a bug in EnvironmentManager::RemoveDeadBindings() where it did not mark
  live all the symbols reachable from a live block-level expression.

- Fixed a bug in the retain/release checker where it did not stop tracking
  symbols that 'escaped' via compound literals being assigned to something the
  BasicStoreManager didn't reason about.

llvm-svn: 64534

ASTContext types.

llvm-svn: 64533

 - Test for signed and unsigned wrapping conditions, instead of just
   testing for non-negative induction ranges. 
 - Handle loops with GT comparisons, in addition to LT comparisons.
 - Support more cases of induction variables that don't start at 0.

llvm-svn: 64532

llvm-svn: 64531

No functionality change.

llvm-svn: 64530

important for both keeping the generated LLVM simple and for ensuring
that integer types are passed/promoted correctly.

llvm-svn: 64529

llvm-svn: 64527

we can define builtins such as fprintf, vfprintf, and
__builtin___fprintf_chk. Give a nice error message when we need to
implicitly declare a function like fprintf.

llvm-svn: 64526

- Added a new 'node builder' class called GRStmtNodeBuilderRef (name may
  change). This is essentially a smart reference to a GRStmtNodeBuilder object
  that keeps track of the current context (predecessor node, GRExprEngine
  object, etc.) The idea is to gradually simplify the interface between
  GRExprEngine and GRTransferFuncs using this new builder (i.e., passing 1
  argument instead of 5). It also handles some of the "auto-transition" for node
  creation, simplifying some of the logic in GRExprEngine itself.

- Used GRStmtBuilderRef to replace GRTransferFuncs::EvalStore with
  GRTransferFuncs::EvalBind. The new EvalBind method will be used at any
  arbitrary places where a binding between a location and value takes place.
  Moreover, GRTransferFuncs no longer has the responsibility to request
  StoreManager to do the binding; this is now in GRExprEngine::EvalBind. All
  GRTransferFuncs::EvalBind does is checker-specific logic (which can be a
  no-op).

llvm-svn: 64525

llvm-svn: 64522