Commit Graph

5806 Commits

Author SHA1 Message Date
Zhongxing Xu b0a05f7ca1 Add a checker for CWE-467: Use of sizeof() on a Pointer Type.
llvm-svn: 86464
2009-11-08 13:10:34 +00:00
Alexis Hunt 6f3de50ca7 Test commit - minor terminology change to my recent patch suggested by John McCall
llvm-svn: 86442
2009-11-08 07:46:34 +00:00
Fariborz Jahanian d7aa9d8a63 Patch to gives an error that at least points users in the direction of the error, rather
than an error about incompatible types. Patch by Sean Hunt.

llvm-svn: 86402
2009-11-07 20:20:40 +00:00
John McCall b61e9d03c1 Support -Wshorten-64-to-32 for integer types only, which seems to satisfy the
core requirements.  Fixes rdar://problem/6389954

llvm-svn: 86364
2009-11-07 09:03:53 +00:00
Ted Kremenek 975a119f31 Use SaveAndRestore to simplify logic in LiveVariables::runOnAllBlocks(). Patch by Kovarththanan Rajaratnam!
llvm-svn: 86343
2009-11-07 05:57:35 +00:00
Daniel Dunbar 08d5669b01 Add HeaderSearchOptions class, for packaging the information needed to
initialize HeaderSearch. Not used yet.

llvm-svn: 86338
2009-11-07 04:20:50 +00:00
Daniel Dunbar ec87991c8f Lift InitHeaderSearch::AddEnvVarPaths logic higher.
llvm-svn: 86337
2009-11-07 04:20:39 +00:00
Daniel Dunbar 6dc9638153 Formatting fixes.
llvm-svn: 86336
2009-11-07 04:20:25 +00:00
Daniel Dunbar 00f8a397c6 Rename PreprocessorInitOptions to PreprocessorOptions for consistency, and fix
filenames.

Also, move InitializePreprocessor to Utils.h.

llvm-svn: 86335
2009-11-07 04:20:15 +00:00
Ted Kremenek ae3361de2d Remove Checker::CheckType() (and instead using CheckerVisitor::PreVisitDeclStmt()), and refactor VLASizeChecker to have only one Checker subclass (not two) and to not use the node builders directly (and instead use the newer CheckerContext).
llvm-svn: 86329
2009-11-07 03:56:57 +00:00
John McCall fceb64bd04 Implement -Wconversion. Off by default, in the non-gcc group. There's
significant work left to be done to reduce the false-positive rate here.

llvm-svn: 86326
2009-11-07 03:30:10 +00:00
Steve Naroff eae650366d Add basic code completion support for ObjC messages.
Still a work in progress...

llvm-svn: 86323
2009-11-07 02:08:14 +00:00
Douglas Gregor 9eb7701dff Various improvements to Clang's code-completion infrastructure:
- Introduce more code-completion string "chunk" kinds that describe
  symbols, the actual text that the user is expected to type, etc.
  - Make the generation of macro results optional, since it can be
  slow
  - Make code-completion accessible through the C API, marshalling the
  code-completion results through a temporary file (ick) to maintain
  process separation.

The last doesn't have tests yet.

llvm-svn: 86306
2009-11-07 00:00:49 +00:00
Ted Kremenek 795c611cfa Make the VLASizeChecker implementation private, and its creation only known to GRExprEngineInternalChecks.cpp.
llvm-svn: 86292
2009-11-06 21:51:50 +00:00
Ted Kremenek 53a70c055d Make the implementation of DivZeroChecker private.
llvm-svn: 86288
2009-11-06 20:47:51 +00:00
John McCall e2c91e6b26 Don't warn -Wsign-compare if we're in an unevaluated context, and fixed
a typo pointed out by Fariborz.

llvm-svn: 86265
2009-11-06 18:16:06 +00:00
Chris Lattner 45540e91d1 add some const qualifiers, patch by Kovarththanan Rajaratnam!
llvm-svn: 86260
2009-11-06 18:01:14 +00:00
Zhongxing Xu 167bce9cf1 Add a checker for CWE-466: Return of Pointer Value Outside of Expected Range.
llvm-svn: 86252
2009-11-06 13:30:44 +00:00
John McCall d59dd65fa4 Create a warning group "non-gcc" for diagnostics which are not enabled
by default in GCC.  Users who want to emulate gcc's warning behavior
exactly should be able to use CC="clang -Wno-non-gcc";  this should help
projects to transition.

llvm-svn: 86241
2009-11-06 07:53:21 +00:00
Douglas Gregor d82ae38d53 Rework the fix-it hint for code like
get_origin->x

where get_origin is actually a function and the user has forgotten the
parentheses. Instead of giving a lame note for the fix-it, give a
full-fledge error, early, then build the call expression to try to
recover. 

llvm-svn: 86238
2009-11-06 06:30:47 +00:00
Douglas Gregor 6af6c3ee56 Turn off -Wsign-compare warnings by default
llvm-svn: 86233
2009-11-06 05:24:12 +00:00
Ted Kremenek bee01e5b61 static analyzer: refactor checking logic for returning the address of a stack variable or a garbage
value into their own respective subclasses of Checker (and put them in .cpp files where their
implementation details are hidden from GRExprEngine).

llvm-svn: 86215
2009-11-06 02:24:13 +00:00
Ted Kremenek 2980b975ee Minor cleanup: use BuiltinBug (which will soon be renamed) for DeferenceChecker and friends so that they always report the same bug type.
llvm-svn: 86208
2009-11-06 00:44:32 +00:00
John Thompson 864bf7562f Eliminate tabls
llvm-svn: 86183
2009-11-05 22:03:02 +00:00
Chris Lattner e4a8c64731 clean up integer preprocessor type definitions, patch by Ken Dyck!
llvm-svn: 86177
2009-11-05 21:21:32 +00:00
John Thompson ed4e2950bc Adding -fshort-wchar option.
llvm-svn: 86167
2009-11-05 20:14:16 +00:00
Sebastian Redl 1060067dd1 Don't allow definitions of array variables without some size information in C++. Fixed PR5401
llvm-svn: 86165
2009-11-05 19:47:47 +00:00
Fariborz Jahanian c5a044e057 Adds doxygen comment for HasSideEffects method.
llvm-svn: 86150
2009-11-05 18:47:38 +00:00
Fariborz Jahanian 4127b8ef97 Added support for static variables which require
initialization before main. Fixes pr5396.

llvm-svn: 86145
2009-11-05 18:03:03 +00:00
Douglas Gregor 13a2c03801 Eliminate some false positives due to a thinko in the "'blah' is
always zero in this context" warning logic. Also, make the diagnostic
itself more precise when referring to pointer values ("NULL" vs. "zero").

llvm-svn: 86143
2009-11-05 17:49:26 +00:00
Sebastian Redl 39c2a8bbbc Parse C++0x constexpr. Test case follows when this does something useful.
llvm-svn: 86135
2009-11-05 15:47:02 +00:00
John McCall 1fa36b7cab Implement the conditional-operator part of -Wsign-compare. Turn
DiagnoseSignCompare into Sema::CheckSignCompare and call it from more places.

Add some enumerator tests.  These seem to expose some oddities in the
types we're converting C++ enumerators to;  in particular, they're converting
to unsigned before int, which seems to contradict 4.5 [conv.prom] p2.

Note to self: stop baiting Doug in my commit messages.

llvm-svn: 86128
2009-11-05 09:23:39 +00:00
Ted Kremenek c92ff053e9 Tweak wording and classifications of analyzer diagnostics.
llvm-svn: 86127
2009-11-05 08:30:12 +00:00
Daniel Dunbar 0231895ce6 Replace DiagnosticClient::setLangOptions with {Begin,End}SourceFile, and clarify
invariants (diagnostics with source informations must occur between
{Begin,End}SourceFile).

llvm-svn: 86113
2009-11-05 02:42:12 +00:00
Daniel Dunbar b5f2025b77 Convert CreateAnalysisConsumer and friends to just take a const Preprocessor&, and simplify.
llvm-svn: 86112
2009-11-05 02:41:58 +00:00
Daniel Dunbar 78eaff4c13 Remove unused SetPreprocessor method.
llvm-svn: 86111
2009-11-05 02:41:44 +00:00
Ted Kremenek 165f5b7421 AnalysisManager: Don't rely on PathDiagnosicClients flushing their diagnostics when they are destroyed.
llvm-svn: 86110
2009-11-05 02:17:33 +00:00
Ted Kremenek 5e86044ec4 Acting on Daniel's nagging, remove PathDiagnosticClientFactory() and
migrate work in the destructors of PathDiagnosticClients from their
destructors to FlushReports().  The destructors now currently call
FlushReports(); this will be fixed in a subsequent patch.

llvm-svn: 86108
2009-11-05 02:09:23 +00:00
Daniel Dunbar a2ff3b4819 Make html::{SyntaxHighlight,HighlightMacros} take a const Preprocessor.
This is conceptually correct, but adds a huge hack to HighlightMacros which is
in fact doing all sorts of mutation to the Preprocessor. See FIXME.

Chris, please review.

llvm-svn: 86107
2009-11-05 01:54:02 +00:00
Daniel Dunbar 07dcd8b9d8 Make LookUpIdentifierInfo const. This makes the Identifiers table mutable and is
a little fuzzy, but conceptually it's just uniquing the identifier.

Chris, please review. I debated splitting into const/non-const versions where
the const one propogated constness to the resulting IdentifierInfo*.

llvm-svn: 86106
2009-11-05 01:53:52 +00:00
Daniel Dunbar f539bfeb4d StringRefize Preprocessor::getIdentifierInfo.
llvm-svn: 86105
2009-11-05 01:53:39 +00:00
Ted Kremenek 209e31b883 Modify GRExprEngine::EvalBind() to take both a "store expression" and
an "assign expression", representing the expressions where the value
binding occurs and the assignment takes place respectively.  These are
largely syntactic clues for better error reporting.

llvm-svn: 86084
2009-11-05 00:42:23 +00:00
John McCall 644a4181c9 Implement -Wsign-compare, or at least the actual comparison part of it.
Conditional operands are next.

Fixes part of rdar://problem/7289584.

llvm-svn: 86083
2009-11-05 00:40:04 +00:00
Daniel Dunbar d0ba0e6108 Kill PreprocessorFactory, which was both morally repugnant and totally unused.
llvm-svn: 86076
2009-11-04 23:56:25 +00:00
Daniel Dunbar 14f00d2e10 Tweak formatting.
llvm-svn: 86070
2009-11-04 23:41:27 +00:00
John McCall e22a04aba9 Diagnose using a field to initialize itself. Patch by Brandon Pearcy!
llvm-svn: 86061
2009-11-04 23:02:40 +00:00
Chris Lattner b689d0c95e ignore two new -W flags, patch by Tom Jablin!
llvm-svn: 86059
2009-11-04 22:47:56 +00:00
Daniel Dunbar 181aaee165 InitializePreprocessor cannot fail.
llvm-svn: 86048
2009-11-04 21:13:15 +00:00
Daniel Dunbar b27ec09a7e Move -undef flag into PreprocessorInitOptions
llvm-svn: 86047
2009-11-04 21:13:02 +00:00
Douglas Gregor e7b5f81ba5 Eliminate the "old" ways of parsing operator-function-ids and
conversion-function-ids; all clients have moved on to
ParseUnqualifiedId.

llvm-svn: 86028
2009-11-04 16:32:12 +00:00
Douglas Gregor 220f4277bd Switch parsing of using declarations over to ParseUnqualifiedId.
llvm-svn: 86027
2009-11-04 16:30:06 +00:00
John McCall 4c98fd8953 Preserve type source information in sizeof/alignof expressions, and pass it
through to indexing.

llvm-svn: 86018
2009-11-04 07:28:41 +00:00
Daniel Dunbar a9be734c24 Fix commento.
llvm-svn: 86016
2009-11-04 06:57:08 +00:00
Daniel Dunbar c2e6a4709e Factor out a diagnostic options class.
llvm-svn: 86010
2009-11-04 06:24:30 +00:00
Ted Kremenek ef910047b2 Catch uses of undefined values when they are used in assignment, thus catching such bugs closer to the source.
llvm-svn: 86003
2009-11-04 04:24:16 +00:00
Ted Kremenek 9db38f6f83 Add mising #ifdef guards.
llvm-svn: 86002
2009-11-04 04:03:43 +00:00
John McCall 4976fd4ea9 Diagnose the use of 'fastcall' on functions without prototypes or with
varargs prototypes.

llvm-svn: 86001
2009-11-04 03:36:09 +00:00
John McCall 9eff4e60ae Diagnose __builtin_offsetof on incomplete types. Fixes
rdar://problem/7222956

llvm-svn: 85999
2009-11-04 03:03:43 +00:00
John McCall 28a6aeab7e Change our basic strategy for avoiding deprecation warnings when the decl use
appears in a deprecated context.  In the new strategy, we emit the warnings
as usual unless we're currently parsing a declaration, where "declaration" is
restricted to mean a decl group or a few special cases in Objective C.  If
we *are* parsing a declaration, we queue up the deprecation warnings until
the declaration has been completely parsed, and then emit them only if the
decl is not deprecated.
We also standardize the bookkeeping for deprecation so as to avoid special cases.

llvm-svn: 85998
2009-11-04 02:18:39 +00:00
Zhongxing Xu 259d46407a Merge ZeroSizedVLAChecker and UndefSizedVLAChecker.
llvm-svn: 85996
2009-11-04 01:43:07 +00:00
Tanya Lattner f9d41df093 Merge constant array and structures. This will create a global variables for arrays and structs that are constant and their initializer is constant. It is on by default but can be disable with the flag -fno-merge-all-constants.
llvm-svn: 85991
2009-11-04 01:18:09 +00:00
Douglas Gregor 71395fa1d5 Implement support for parsing dependent template-ids that refer to
overloaded operators, e.g.,

  p->template operator+<T>()

llvm-svn: 85989
2009-11-04 00:56:37 +00:00
Daniel Dunbar caa00adafd Use unsigned char instead of unsigned : 8 to make the optimizer happier.
llvm-svn: 85985
2009-11-04 00:34:40 +00:00
Ted Kremenek b006b82daf Refactor StoreManager::BindDecl() to take a VarRegion* instead of a VarDecl*, and modify GRExprEngine::EvalBind() to handle decl initialization as well. This paves the way for adding "checker" visitation in EvalBind().
llvm-svn: 85983
2009-11-04 00:09:15 +00:00
Ted Kremenek 0fbbb0877d Change GRTransferFuncs::RegisterChecks() to take a GRExprEngine& instead of a BugReporter&. This paves the way for pulling some of the retain/release checker into a "Checker" class.
llvm-svn: 85971
2009-11-03 23:30:34 +00:00
Mike Stump 53f9ded62b Refine volatile handling, specifically, we must have the canonical
type to look at the volatile specifier.  I found these all from just
hand auditing the code.

llvm-svn: 85967
2009-11-03 23:25:48 +00:00
Douglas Gregor 3cf81317e4 Parsing and semantic analysis for template-ids that name overloaded
operators, e.g., 

  operator+<int>

which now works in declarators, id-expressions, and member access
expressions. This commit only implements the non-dependent case, where
we can resolve the template-id to an actual declaration.

llvm-svn: 85966
2009-11-03 23:16:33 +00:00
Chris Lattner e9d7d78ab3 Implement support for the -undef command line option, patch by
Roman Divacky! PR5363

llvm-svn: 85932
2009-11-03 19:50:27 +00:00
Douglas Gregor 30d60cb36e Replace the code that parses member access expressions after "." or
"->" with a use of ParseUnqualifiedId. Collapse
ActOnMemberReferenceExpr, ActOnDestructorReferenceExpr (both of them),
ActOnOverloadedOperatorReferenceExpr,
ActOnConversionOperatorReferenceExpr, and
ActOnMemberTemplateIdReferenceExpr into a single, new action
ActOnMemberAccessExpr that does the same thing more cleanly (and can
keep more source-location information).

llvm-svn: 85930
2009-11-03 19:44:04 +00:00
John McCall 37958aa864 Silence a warning by giving Parser::FieldCallback a virtual destructor, and
anchor the vtable to Parser.cpp for good measure.

llvm-svn: 85927
2009-11-03 19:33:12 +00:00
John McCall d5a36321b9 Reorganize the parsing of decl groups / function definitions so that
declarators are parsed primarily within a single function (at least for
these cases).  Remove some excess diagnostics arising during parse failures.

llvm-svn: 85924
2009-11-03 19:26:08 +00:00
Ted Kremenek 8d43a6ac3d Merge NullDerefChecker.[h,cpp] and UndefDerefChecker.[h,cpp]. They are essentially two parts of the same check.
llvm-svn: 85911
2009-11-03 18:41:06 +00:00
Douglas Gregor a121b75d9d Use ParseUnqualifiedId when parsing id-expressions. This eliminates
yet another copy of the unqualified-id parsing code.

Also, use UnqualifiedId to simplify the Action interface for building
id-expressions. ActOnIdentifierExpr, ActOnCXXOperatorFunctionIdExpr,
ActOnCXXConversionFunctionExpr, and ActOnTemplateIdExpr have all been
removed in favor of the new ActOnIdExpression action.

llvm-svn: 85904
2009-11-03 16:56:39 +00:00
Zhongxing Xu 27fee83ec4 Pull VLA size checker into its own files.
Split it to two checkers, one for undefined size, 
the other for zero size, so that we don't need to query the size
when emitting the bug report.

llvm-svn: 85895
2009-11-03 12:13:38 +00:00
Ted Kremenek 18c7ceee16 Implement: <rdar://problem/6250216> Warn against using -[NSAutoreleasePool release] in GC mode
llvm-svn: 85887
2009-11-03 08:03:59 +00:00
Ted Kremenek 924316d7d7 Move 'static inline' functions GetNullarySelector() and GetUnarySelector() from CFRefCount.cpp to ASTContext.h. These functions are likely to be generally useful.
llvm-svn: 85886
2009-11-03 08:00:42 +00:00
Zhongxing Xu 9b9d731a8b Pull AttrNonNullChecker into its own files.
llvm-svn: 85883
2009-11-03 07:35:33 +00:00
Zhongxing Xu ab162e1873 Pull UndefinedArgChecker into its own files.
llvm-svn: 85875
2009-11-03 06:46:03 +00:00
Zhongxing Xu 0deca3486e Pull BadCallChecker into its own files.
llvm-svn: 85868
2009-11-03 05:48:04 +00:00
John McCall cfefb6d197 Switch ParseStructDeclaration to a callback-based API. This will make
it easier to track within Sema whether the parser is parsing a declaration.

llvm-svn: 85855
2009-11-03 02:38:08 +00:00
Douglas Gregor 7861a80346 Introduce a new class, UnqualifiedId, that provides a parsed
representation of a C++ unqualified-id, along with a single parsing
function (Parser::ParseUnqualifiedId) that will parse all of the
various forms of unqualified-id in C++.

Replace the representation of the declarator name in Declarator with
the new UnqualifiedId class, simplifying declarator-id parsing
considerably and providing more source-location information to
Sema. In the future, I hope to migrate all of the other
unqualified-id-parsing code over to this single representation, then
begin to merge actions that are currently only different because we
didn't have a unqualified notion of the name in the parser.

llvm-svn: 85851
2009-11-03 01:35:08 +00:00
Ted Kremenek fac290d359 Remove GRExprEngine::CheckerVisitLocation(). It was only called in one place, so we inlined it in to GRExprEngine::EvalLocation().
llvm-svn: 85838
2009-11-02 23:19:29 +00:00
Fariborz Jahanian de8db16a7d Property declared in continuation class can only be used to
change a readonly property declared in the class (and its inherited protocols)
to writable property. (Fixes radar 7350645).

llvm-svn: 85836
2009-11-02 22:45:15 +00:00
John Thompson ac0b098d4d Added __has_include and __has_include_next.
llvm-svn: 85834
2009-11-02 22:28:12 +00:00
Ted Kremenek f639b84bc5 Hopefully make gcc-4.0 happy with respect to the following warning:
warning: 'class clang::StackFrameContext' has virtual functions but non-virtual destructor
llvm-svn: 85833
2009-11-02 22:24:53 +00:00
Ted Kremenek 69e584d12b Add "virtual" keywords for clarity.
llvm-svn: 85815
2009-11-02 18:54:58 +00:00
Fariborz Jahanian ec344ed2f5 Diagnose implementation of a property declared in a category
in its class implementation instead of crashing. Fixes radar 7350345.

llvm-svn: 85813
2009-11-02 18:45:36 +00:00
Douglas Gregor bff4e7d180 Fix the type of __builtin_expect, from Ed Schouten!
llvm-svn: 85666
2009-10-31 16:04:14 +00:00
Douglas Gregor 249c121883 Add two missing CINDEX_LINKAGE uses, in libCIndex, from Kovarththanan
Rajaratnam!

llvm-svn: 85665
2009-10-31 15:48:08 +00:00
Benjamin Kramer 6b289a9cf6 Update CMake file.
llvm-svn: 85652
2009-10-31 12:15:23 +00:00
Zhongxing Xu b1c24724dd Move CheckDivZero into its own files.
llvm-svn: 85651
2009-10-31 10:02:37 +00:00
Zhongxing Xu 358ced08d0 Move UndefDerefChecker into its own file.
llvm-svn: 85645
2009-10-31 08:44:33 +00:00
Zhongxing Xu 2261bcadd1 Add header comments.
llvm-svn: 85644
2009-10-31 04:12:21 +00:00
Douglas Gregor 1d0015f8e1 Improved fix for PR3844, which recovers better for class template
partial specializations and explicit instantiations of non-templates.

llvm-svn: 85620
2009-10-30 22:09:44 +00:00
Douglas Gregor 916462b2f7 Improve diagnostics when parsing something like
template<> struct foo<int> { ... };

where "foo" does not refer to a template. Fixes PR3844.

llvm-svn: 85616
2009-10-30 21:46:58 +00:00
John McCall edf97c4b02 Finally suppress a compiler warning from gcc on release-asserts. Also fixes
a crash on <vector> in same, which bears additional investigation.

llvm-svn: 85598
2009-10-30 17:53:18 +00:00
Ted Kremenek 6f2a705a24 Make checkers run in deterministic order.
llvm-svn: 85597
2009-10-30 17:47:32 +00:00
Ted Kremenek 89f5c189db Move NullDerefChecker.h instead a 'Checkers' subdirectory.
llvm-svn: 85596
2009-10-30 17:28:40 +00:00
Ted Kremenek f613e89617 Move all logic for the null dereference checker from GRExprEngineInternalChecks.cpp to a separate .cpp file.
llvm-svn: 85595
2009-10-30 17:24:47 +00:00
Douglas Gregor f329c7c3c0 Include macros in code-completion results
llvm-svn: 85594
2009-10-30 16:50:04 +00:00