Chandler Carruth [Wed, 31 Aug 2011 16:53:37 +0000 (16:53 +0000)]
Update libclang to have APIs corresponding to the new 'expansion' naming
system for macro-backed source locations. The old APIs are preserved for
legacy users.
This was intended to land with the main work of instantiation ->
expansion, but despite running it by Doug over a month ago, I forgot to
commit it. Very sorry for that...
Chandler Carruth [Wed, 31 Aug 2011 09:01:53 +0000 (09:01 +0000)]
Improve the diagnostic text for -Wmissing-noreturn to include the name
of the function in question when applicable (that is, not for blocks).
Patch by Joerg Sonnenberger with some stylistic tweaks by me.
When discussing this weth Joerg, streaming the decl directly into the
diagnostic didn't work because we have a pointer-to-const, and the
overload doesn't accept such. In order to make my style tweaks to the
patch, I first changed the overload to accept a pointer-to-const, and
then changed the diagnostic printing layer to also use
a pointer-to-const, cleaning up a gross line of code along the way.
Eli Friedman [Tue, 30 Aug 2011 23:07:51 +0000 (23:07 +0000)]
Change err_pp_file_not_found back to an Error; when it's a Warning, we suppress it in system headers. And it is not a good idea to suppress it in system headers. (This was originally changed in r134996 to implement -MG.)
Fixes <rdar://10041960>. And also brings down the number of warnings without a flag by one :)
Douglas Gregor [Tue, 30 Aug 2011 22:40:35 +0000 (22:40 +0000)]
Allow C99 hexfloats in C++0x mode. This change resolves the standards
collision between C99 hexfloats and C++0x user-defined literals by
giving C99 hexfloats precedence. Also, warning about user-defined
literals that conflict with hexfloats and those that have names that
are reserved by the implementation. Fixes <rdar://problem/9940194>.
Douglas Gregor [Tue, 30 Aug 2011 20:49:19 +0000 (20:49 +0000)]
When writing out the entries in a lookup table for a DeclContext, make
sure that all of the CXXConversionDecls go into the same
bucket. Otherwise, name lookup might not find them all. Fixes
<rdar://problem/10041960>.
Sebastian Redl [Tue, 30 Aug 2011 19:58:05 +0000 (19:58 +0000)]
Declare and define implicit move constructor and assignment operator.
This makes the code duplication of implicit special member handling even worse,
but the cleanup will have to come later. For now, this works.
Follow-up with tests for explicit defaulting and enabling the __has_feature
flag to come.
In ASTWriter::WriteDeclContextVisibleBlock, don't write empty lookups.
Empty lookups can occur in the DeclContext map when we are chaining PCHs, where
the empty lookup indicates that we already looked in ExternalASTSource.
John McCall [Tue, 30 Aug 2011 00:57:29 +0000 (00:57 +0000)]
Be sure to emit lvalue-to-rvalue casts for loads from x-values.
Doing this happens to disrupt the pattern that ARC was looking for
for move optimizations, so we need to fix that simultaneously.
Ivan Krasin [Mon, 29 Aug 2011 22:39:12 +0000 (22:39 +0000)]
Clang/PNaCl: Improve test coverage for PNaClTargetInfo (type aligns), fixes nits:
- wrong alignment for double (it was 4, but 8 is desired),
- added checks for _REENTRANT define,
- fixed the issue that defines were not tested (because the check for inside #ifdef).
Caitlin Sadowski [Mon, 29 Aug 2011 22:27:51 +0000 (22:27 +0000)]
Thread safety: added basic handling for pt_guarded_by/var and guarded_by/var annotations. We identify situations where we are accessing (reading or writing) guarded variables, and report an error if the appropriate locks are not held.
Douglas Gregor [Mon, 29 Aug 2011 17:28:38 +0000 (17:28 +0000)]
Add and document __has_feature values for the remaining C++0x
features, so clients can check for the availability of these features
even before we get around to implementing them.
Jeffrey Yasskin [Mon, 29 Aug 2011 15:59:37 +0000 (15:59 +0000)]
Print 'int' instead of 'const int' in the narrowing conversion error, since the
qualification of a type doesn't affect whether a conversion is a narrowing
conversion.
This doesn't work in template cases because SubstTemplateTypeParmType gets in
the way.
Jordy Rose [Sun, 28 Aug 2011 19:11:56 +0000 (19:11 +0000)]
[analyzer] Introduce a new callback for checkers, printState, to be used for debug-printing the contents of a ProgramState.
Unlike the other callbacks, this one is a simple virtual method, since it is only to be used for debugging.
This new callback replaces the old ProgramState::Printer interface, and allows us to move the printing of refcount bindings from CFRefCount to RetainReleaseChecker.
Jordy Rose [Sat, 27 Aug 2011 22:51:26 +0000 (22:51 +0000)]
[analyzer] Change the check::RegionChanges callback to include the regions explicitly requested for invalidation.
Also, allow CallOrObjCMessage to wrap a CXXConstructExpr as well.
Finally, this allows us to remove the clunky whitelisting system from CFRefCount/RetainReleaseChecker. Slight regression due to CXXNewExprs not yet being handled in post-statement callbacks (PR forthcoming).
John McCall [Sat, 27 Aug 2011 22:06:17 +0000 (22:06 +0000)]
Disable the l-value to r-value conversion on C++ class types passed
to varargs functions in unevaluated contexts. AFAICT, there is no
standards justification for this, but it matches what other compilers do
and therefore preserves compatibility with certain template metaprogramming
idioms.
Ted Kremenek [Sat, 27 Aug 2011 21:39:14 +0000 (21:39 +0000)]
[analyzer] Rename current PathDiagnosticClient::HandlePathDiagnostic() to HandlePathDiagnosticImpl(), and slot in new HandlePathDiagnostic() for potentially handling concurrent access to PathDiagnosticClients (in the future).
Ted Kremenek [Sat, 27 Aug 2011 21:15:48 +0000 (21:15 +0000)]
[analyzer] Add test case for handling of __bridge_transfer that previously resulted in a 'stack address' warning (that was fixed in r138616). Fixes <rdar://problem/10018376>.
objective-c: Treat top-level objective-c declarations
, such as list of forward @class decls, in a DeclGroup
node. Deal with its consequence throught clang. This
is in preparation for more Sema work ahead. // rdar://8843851.
Feel free to reverse if it breaks something important
and I am unavailable.
Douglas Gregor [Sat, 27 Aug 2011 06:37:51 +0000 (06:37 +0000)]
Take an entirely different approach to handling the "parsing" of
__import__ within the preprocessor, since the prior one foolishly
assumed that Preprocessor::Lex() was re-entrant. We now handle
__import__ at the top level (only), after macro expansion. This should
fix the buildbot failures.
John McCall [Sat, 27 Aug 2011 01:09:30 +0000 (01:09 +0000)]
The lvalue-to-rvalue on structs in C++ is actually part
of default argument promotion and needs to happen unconditionally.
This is particularly semantically important in C++0x.
Douglas Gregor [Fri, 26 Aug 2011 23:56:07 +0000 (23:56 +0000)]
Introduce support for a simple module import declaration, which
loads the named module. The syntax itself is intentionally hideous and
will be replaced at some later point with something more
palatable. For now, we're focusing on the semantics:
- Module imports are handled first by the preprocessor (to get macro
definitions) and then the same tokens are also handled by the parser
(to get declarations). If both happen (as in normal compilation),
the second one is redundant, because we currently have no way to
hide macros or declarations when loading a module. Chris gets credit
for this mad-but-workable scheme.
- The Preprocessor now holds on to a reference to a module loader,
which is responsible for loading named modules. CompilerInstance is
the only important module loader: it now knows how to create and
wire up an AST reader on demand to actually perform the module load.
- We search for modules in the include path, using the module name
with the suffix ".pcm" (precompiled module) for the file name. This
is a temporary hack; we hope to improve the situation in the
future.
Chad Rosier [Fri, 26 Aug 2011 21:28:44 +0000 (21:28 +0000)]
[driver] When generating temporary files allow a prefix to be added. In many
cases we want the prefix to be the original file name less the suffix. For an
input such as test.c to named temporary would be something like test-3O4Clq.o
Part of <rdar://problem/8314451>
Douglas Gregor [Fri, 26 Aug 2011 21:23:06 +0000 (21:23 +0000)]
When we're deserializing declarations lexically stored in a RecordDecl
after having already deserialized the fields, clear out the fields
first. This makes sure that we keep all of the declarations in the
lexical context (including those implicitly added by later
type-checking) within the same list. A test case for this behavior is
coming as part of another commit; testing for this problem in
isolation is a nightmare.
John McCall [Fri, 26 Aug 2011 07:31:35 +0000 (07:31 +0000)]
Since the 'is aliased' bit is critical for correctness in C++, it
really shouldn't be optional. Fix the remaining place where a
temporary was being passed as potentially-aliased memory.
Jeffrey Yasskin [Fri, 26 Aug 2011 00:41:31 +0000 (00:41 +0000)]
Handle CXXTempObjectRegion in StackAddrEscapeChecker.
Also convert stack-addr-ps.cpp to use the analyzer instead of just Sema, now
that it doesn't crash, and extract the stack-block test into another file since
it errors, and that prevents the analyzer from running.
Much to everyone's surprise, the default constructor for TypeResult produces
an instance with Invalid == false. This seems like a decision we may want to
revisit.
John McCall [Thu, 25 Aug 2011 23:04:34 +0000 (23:04 +0000)]
Track whether an AggValueSlot is potentially aliased, and do not
emit call results into potentially aliased slots. This allows us
to properly mark indirect return slots as noalias, at the cost
of requiring an extra memcpy when assigning an aggregate call
result into a l-value. It also brings us into compliance with
the x86-64 ABI.
Douglas Gregor [Thu, 25 Aug 2011 22:54:01 +0000 (22:54 +0000)]
Eliminate the -chained-pch flag and all of the frontend and libclang options associated with it. Chained PCH is the only way to build a PCH file that includes another PCH file
Douglas Gregor [Thu, 25 Aug 2011 22:30:56 +0000 (22:30 +0000)]
Introduce a -cc1 option "-emit-module", that creates a binary module
from the given source. -emit-module behaves similarly to -emit-pch,
except that Sema is somewhat more strict about the contents of
-emit-module. In the future, there are likely to be more interesting
differences.
projects / clang / log