Add test case illustrating special handling of 'SenTestCase' subclasses for the missing -dealloc check.

llvm-svn: 64494

llvm-svn: 64417

llvm-svn: 64257

Fix PR 2514: Do not flag dead initializations for variables initialized to a constant global variable.

llvm-svn: 64149

llvm-svn: 64080

llvm-svn: 64045

llvm-svn: 63930

for FieldRegion. This enables us to track more values.

Simplify SymbolicRegion::getRValueType(). We assume the symbol always has
pointer type.

llvm-svn: 63928

Add 'AppendValue' to the list of magic CF function names that cause a tracked object to escape.  Fixes <rdar://problem/6560661>.

llvm-svn: 63891

the ownership of BugTypes and BugReports. Now BugReports are owned by BugTypes,
and BugTypes are owned by the BugReporter object.

The major functionality change in this patch is that reports are not immediately
emitted by a call to BugReporter::EmitWarning (now called EmitReport), but
instead of queued up in report "equivalence classes". When
BugReporter::FlushReports() is called, it emits one diagnostic per report
equivalence class. This provides a nice cleanup with the caching of reports as
well as enables the BugReporter engine to select the "best" path for reporting a
path-sensitive bug based on all the locations in the ExplodedGraph that the same
bug could occur.

Along with this patch, Leaks are now coalesced into a common equivalence class
by their allocation site, and the "summary" diagnostic for leaks now reports the
allocation site as the location of the bug (this may later be augmented to also
provide an example location where the leak occurs).

llvm-svn: 63796

the liveness state of block-level expressions could oscillate because
of two issues:
- The initial value before a merge was not always set to "Top"
- The set of live block-level expressions is a union, not an intersection

This fixes <rdar://problem/650084>.

llvm-svn: 63421

llvm-svn: 63392

llvm-svn: 63391

- NonLoc::MakeVal() would use sizeof(unsigned) (literally) instead of consulting
  ASTContext for the size (in bits) of 'int'. While it worked, it was a
  conflation of concepts and using ASTContext.IntTy is 100% correct.
- RegionStore::getSizeInElements() no longer assumes that a VarRegion has the
  type "ConstantArray", and handles the case when uses use ordinary variables
  as if they were arrays.
- Fixed ElementRegion::getRValueType() to just return the rvalue type of its
  "array region" in the case the array didn't have ArrayType.
- All of this fixes <rdar://problem/6541136>

llvm-svn: 63347

retain/release checker: When generating summaries for CF/CG functions, allow arguments to "escape" if they are passed to a function containing the terms "InsertValue", "SetValue", or "AddValue".  This fixes <rdar://problem/6539791>.

llvm-svn: 63341

retain/release checker: Always generate an "autorelease" summary for an "autorelease" message, and have the summary processing logic treat it as a no-op in GC mode.  This change is motivated to encode more of the semantics in the summaries themselves for eventual better diagnostics.

llvm-svn: 63241

llvm-svn: 63237

retain/release checker: Improve diagnostics to indicate that CF objects are not automatically garbage collected.

llvm-svn: 63187

Fix bug in BasicStore::getLValueElement where if the base of an array subscript expression was an ElementRegion we stacked another ElementRegion on top of that.

This fixes PR 3422.

llvm-svn: 63110

Fix crash ElementRegion::getRValueType() when the RvalueType of the ArrayRegion is a typedef and not (directly) a pointer.

llvm-svn: 62909

More hacking on static analyzer diagnostics.  When emitting summary diagnostics the code paths for diagnostics involving paths or single locations are now unified.  This patch also constifies many arguments/methods that are touched by this logic, leading to a nice overall code cleanup.

llvm-svn: 62903

llvm-svn: 62847

llvm-svn: 62845

For now, return UnknownVal() in RegionStore::getElementsSize() for AnonTypedRegions.  It wasn't really doing the right thing and was crashing on rdar-6442306-1.m.  This fix causes all path-sensitive test cases to pass with RegionStore.

llvm-svn: 62816

Add RegionStore support for the implicit object region that 'self' references.  This causes tests 'ObjCProperties.m' and 'refcnt_naming.m' to now pass with RegionStore.

llvm-svn: 62814

llvm-svn: 62805

llvm-svn: 62804

llvm-svn: 62803

llvm-svn: 62802

llvm-svn: 62801

llvm-svn: 62800

llvm-svn: 62799

llvm-svn: 62798

llvm-svn: 62796

llvm-svn: 62795

llvm-svn: 62782

Fix RegionStore::getLValueElement() to handle the case when the base region is not an ElementRegion (also do some cleanups of its core logic).
This gets array-struct.c to work with RegionStore.

llvm-svn: 62781

llvm-svn: 62773

The 'misc-ps.m' test case now passes with RegionStore.  One case needed to be split out into 'misc-ps-basic-store.m' and 'misc-ps-region-store.m' because the behavior was different between the two store models (RegionStore flags an additional valid bug).

llvm-svn: 62772

llvm-svn: 62670