Commit Graph

26827 Commits

Author SHA1 Message Date
Dan Gohman bbb7d62546 Front-end support for __attribute__((may_alias)). This is not
yet hooked up to anything yet.

llvm-svn: 119407
2010-11-17 00:03:07 +00:00
John McCall 4f29b49de1 Support compound complex operations as l-values in C++. Add a test
case based on CodeGen/volatile-1.c which tests the current C++
semantics, and note the many, many places we fall short of them.

llvm-svn: 119402
2010-11-16 23:07:28 +00:00
Argyrios Kyrtzidis f89a56c74b Warn about arg1 && arg2 || arg3, as GCC 4.3+ does. Fixes rdar://8659922
llvm-svn: 119381
2010-11-16 21:00:12 +00:00
Douglas Gregor 3edb16765d Use an OwningPtr for the preamble buffer in ASTUnit. This plugs a leak
where we failed to free this buffer along one of the paths, and
detangles the code a little.

llvm-svn: 119379
2010-11-16 20:45:51 +00:00
Anton Yartsev f2a1345a34 turned pointers into pointers to const in function parameters in all functions/builtins accepting pointers to a const-qualified type according to PIM and "Language Extensions for CBEA"
llvm-svn: 119376
2010-11-16 20:09:36 +00:00
Fariborz Jahanian a3e54bd33e Implements __block API for c++ objects. There is still
issue with runtime which I am discussing it with Blaine.
This is wip (so no test yet).

llvm-svn: 119368
2010-11-16 19:29:39 +00:00
Bob Wilson 849857445f Temporarily disable this check for Neon vector type mangling.
I'll reenable it soon when I'm done reworking <arm_neon.h>.

llvm-svn: 119366
2010-11-16 19:08:19 +00:00
Ted Kremenek 0c27bcfd05 Static analyzer: Catch calls to malloc() with
allocation sizes of 0 bytes.

Fixes PR 2899.

llvm-svn: 119364
2010-11-16 18:47:04 +00:00
Argyrios Kyrtzidis 20ee5ae871 Emit a specific diagnostic when typedefing C++ bool, mirroring gcc.
Fixes rdar://8365458

llvm-svn: 119359
2010-11-16 18:18:13 +00:00
Benjamin Kramer d1fb1f49a2 MSVC doesn't like the noinline attribute at the end of a declaration. Try the other side.
llvm-svn: 119349
2010-11-16 15:45:46 +00:00
Nico Weber 1610d47048 Add gcc-4.4.4 headers on Gentoo systems. Patch by Bertjan Broeksema!
llvm-svn: 119348
2010-11-16 12:42:55 +00:00
Chandler Carruth 40c98640e1 Remove an unintended restriction on sysroots introduced during the Path
conversion.

llvm-svn: 119346
2010-11-16 11:30:11 +00:00
Chandler Carruth b19289331d This really seems like a boring set of fixes to our tests to make them more
independent of the underlying system. Let me know if any of these are too
aggressive.

llvm-svn: 119345
2010-11-16 10:26:08 +00:00
John McCall 07bb19667a Simplify some complex emission and implement correct semantics for
assignment to volatiles in C.  This in effect reverts some of mjs's
work in and around r72572.  Basically, the C++ standard is quite
clear, except that it lies about volatile behavior approximating
C's, whereas the C standard is almost actively misleading.

llvm-svn: 119344
2010-11-16 10:08:07 +00:00
Chandler Carruth 5eef9ba483 Futher reduce the includes of our builtin headers, and teach limits.h to avoid
include_next when not hosted or unavailable. This follows the pattern in
stdint.h and allows these headers to work even in a freestanding configuration
without a standard library.

llvm-svn: 119343
2010-11-16 10:07:43 +00:00
John McCall 6dd263e31b Reverting r119341: doesn't compile, no obvious fix.
llvm-svn: 119342
2010-11-16 09:18:38 +00:00
Marcin Swiderski 76e66c1d60 Refactored GRExprEngine::getCXXThisRegion to use CXXMethodDecl::getThisType instead of calculating it by hand.
llvm-svn: 119341
2010-11-16 08:50:38 +00:00
Chandler Carruth 1c8383dccd Fix PR8625 and correctly interpret member-calls to static members when
producing warnings.

This feels really fragile, and I've not audited all other argument index-based
warnings. I suspect we'll grow this bug on another warning eventually. It might
be nice to adjust the argument indices when building up the attribute AST node,
as we already have to remember about the 'this' argument within that code to
produce correct errors.

llvm-svn: 119340
2010-11-16 08:49:43 +00:00
Chandler Carruth 743682bb9f Re-work the handling of implicit 'this' arguments and silly GCC-style attribute
argument indexes. This handles the offsets in a consistent manner for all of
the attributes which I saw working with these concepts. I've also added tests
for the attribute that motivated this: nonnull.

I consolidated the tests for format attributes into one file, and fleshed them
out a bit to trigger more of the warning cases. Also improved the quality of
some of the diagnostics that occur with invalid argument indices.

The only really questionable change here is supporting the implicit this
argument for the ownership attribute. I'm not sure it's really a sensible
concept there, but implemented the logic for consistency.

llvm-svn: 119339
2010-11-16 08:35:43 +00:00
Ted Kremenek 4ff4654893 Rework USR generation from CXCursors to use CXStringBufs
for the backing of generated USRs.  This optmizes
for the case when a client generates a sequence
of USRs in sequence, disposing of them soon
after generating them.  By using a string buffer,
we recycle malloc'ed memory instead of constantly
malloc'ing and copying strings.

llvm-svn: 119338
2010-11-16 08:15:38 +00:00
Ted Kremenek 915542850b Change CXTranslationUnit to not directly cast to an ASTUnit*,
but to wrap both an ASTUnit and a "string pool"
that will be used for fast USR generation.

This requires a bunch of mechanical changes, as
there was a ton of code that assumed that CXTranslationUnit
and ASTUnit* were the same.

Along with this change, introduce CXStringBuf,
which provides an llvm::SmallVector<char> backing
for repeatedly generating CXStrings without a huge
amount of malloc() traffic.  This requires making
some changes to the representation of CXString
by renaming a few fields (but keeping the size
of the object the same).

llvm-svn: 119337
2010-11-16 08:15:36 +00:00
Argyrios Kyrtzidis 9813d3221d Improve diagnostic for calling non-const method on const object. Fixes rdar://7743000
llvm-svn: 119336
2010-11-16 08:04:45 +00:00
Zhongxing Xu 1ade3267d7 Handle member initializer in C++ ctor.
- Add a new Kind of ProgramPoint: PostInitializer.
 - Still use GRStmtNodeBuilder. But special handling PostInitializer in 
   GRStmtNodeBuilder::GenerateAutoTransition().
 - Someday we should clean up the interface of GRStmtNodeBuilder.

llvm-svn: 119335
2010-11-16 07:52:17 +00:00
Craig Silverstein 9e448da324 Have CXXDeleteExpr::getDestroyedType return the actual destroyed type
in more situations.  In particular, for code like

   template<class T> void Fn() { T* x; delete x; }

getDestroyedType() will now return T rather than T*, as it would
before this change.  On the other hand, for code like this:

   template<class T> void Fn() { T x; delete x; }

getDestroyedType() will return an empty QualType(), since it doesn't
know what the actual destroyed type would be.  Previously, it would
return T.

OKed by rjmccall

llvm-svn: 119334
2010-11-16 07:16:25 +00:00
Marcin Swiderski 4098598ca8 Basic support for C++ in BasicStore:
- CXXThisRegion treated like VarRegion and ObjCIVarRegion in various places,
- Reference treated like pointer in BindDeclInternal.

llvm-svn: 119333
2010-11-16 07:15:33 +00:00
John McCall 3eba6e67ec Now that we have reliable cast kinds, simplify scalar cast IR gen.
llvm-svn: 119332
2010-11-16 06:21:14 +00:00
John McCall d50a27111c Kill CK_Unknown and flesh out the documentation for the existing CastKinds.
llvm-svn: 119331
2010-11-16 05:46:29 +00:00
John McCall fa8edb11e1 Teach complex compound assignment IR-generation that the RHS of
a compound assignment is always already in the computation type.

llvm-svn: 119330
2010-11-16 05:45:35 +00:00
John McCall 29600e160e Kill off the remaining places which generate CK_Unknown casts.
llvm-svn: 119326
2010-11-16 02:32:08 +00:00
Ted Kremenek 64dddfb39c Add CXString.cpp and CXString.h
llvm-svn: 119322
2010-11-16 02:03:55 +00:00
Ted Kremenek 4b4f36990d Move CXString creation/management routines into
their own .cpp file and make the interpretation
of its flags private.

llvm-svn: 119319
2010-11-16 01:56:27 +00:00
Ted Kremenek 4490e1015f Update checker build.
llvm-svn: 119318
2010-11-16 01:56:23 +00:00
John McCall 2489379756 Add an ExternalASTSource hook to complete a type on demand.
llvm-svn: 119316
2010-11-16 01:44:35 +00:00
Bob Wilson bafdb73e79 Add a test for Neon vector mangling
llvm-svn: 119304
2010-11-16 00:32:31 +00:00
Bob Wilson 1d54ee75da Add tests for new Neon vector type attributes.
llvm-svn: 119303
2010-11-16 00:32:28 +00:00
Bob Wilson 77ad2c4164 Update TypePrinter::PrintVector to handle new Neon vector types.
llvm-svn: 119302
2010-11-16 00:32:26 +00:00
Bob Wilson 118baf7611 Add support for "neon_vector_type" and "neon_polyvector_type" attributes
to create the special Neon vector types.  These are intended to be used in
Clang's version of <arm_neon.h> to define special Neon vector types that will
be mangled according to ARM's ABI.

llvm-svn: 119301
2010-11-16 00:32:24 +00:00
Bob Wilson 7795480992 ASTContext::getVectorType should preserve the vector kind for canonical types.
This is needed for Neon types when it is most natural to define them in terms
of a typedef.  For example, Neon poly8_t is a typedef for "signed char", and
we want to define polynomial vectors as vectors of that typedef.  Without this
change, the result will be a generic GCC-style vector.  I think this is safe
for other vector types as well, but I would appreciate a review of this.

llvm-svn: 119300
2010-11-16 00:32:20 +00:00
Bob Wilson e4652b1f22 Change CXXNameMangler::mangleNeonVectorType to require the vector type to be
one of the special Neon types.  We'll check for invalid Neon vectors when
they are created, so there's no point in handling them when mangling.

llvm-svn: 119299
2010-11-16 00:32:18 +00:00
Bob Wilson 4348a800ca Fix a comment typo.
llvm-svn: 119298
2010-11-16 00:32:16 +00:00
Bob Wilson 59f9dec8cd Use getTypeSize() method.
llvm-svn: 119297
2010-11-16 00:32:12 +00:00
John McCall 36459fdbad Add another case to the whitelist of cast kinds that can convert to bool.
Fixes PR8608.

llvm-svn: 119293
2010-11-16 00:12:50 +00:00
Ted Kremenek a4c27ec73b CursorVisitor: cache worklists created for data-recursion to reduce malloc() traffic.
llvm-svn: 119290
2010-11-15 23:31:32 +00:00
John McCall 8d69a2160e Add a new expression kind, OpaqueValueExpr, which is useful for
certain internal type-checking procedures as well as for representing
certain implicitly-generated operations.  Uses to follow.

llvm-svn: 119289
2010-11-15 23:31:06 +00:00
Zhanyong Wan 24f6742b34 Adds a README for the Clang static analyzer to document its design and work flow. The contents are taken from email notes by kremenek and xuzhongxing.
llvm-svn: 119288
2010-11-15 23:19:25 +00:00
Ted Kremenek acd03f6fa3 Use LLVM_ATTRIBUTE_NOINLINE instead of attribute((noinline)).
llvm-svn: 119287
2010-11-15 23:11:54 +00:00
Douglas Gregor c65929299d Tweak libclang's heuristics for building precompiled preambles and
caching global code-completion results. In particular, don't perform
either operation the first time we parse, but do both after the first
reparse. 

llvm-svn: 119285
2010-11-15 23:00:34 +00:00
Ted Kremenek 18fb1665bf Remove invalid assertion from CFG builder. When building the CFG pieces for a ternary '?' expression,
it is possible for the confluence block to only have a single predecessor due to calls to 'noreturn'
functions.  Fixes assertion failure reported in PR 8619.

llvm-svn: 119284
2010-11-15 22:59:22 +00:00
Ted Kremenek e6f030467c Cast pointers instead of returning a new value within RunVisitorWorkList().
llvm-svn: 119282
2010-11-15 22:23:26 +00:00
Ted Kremenek 51df4d5596 Annotate CursorVisitor::VisitDataRecursive() with attribute 'noinline'.
Clang currently uses a ridiculous amount of stack space when inlining
this function, which can lead to premature stack overflows.

llvm-svn: 119281
2010-11-15 22:23:24 +00:00