Michael Han [Tue, 6 Nov 2012 19:34:54 +0000 (19:34 +0000)]
Teach Clang parser to reject C++11 attributes that appertain to declaration specifiers.
We don't support any C++11 attributes that appertain to declaration specifiers so reject
the attributes in parser until we support them; this also conforms to what g++ 4.8 is doing.
[c-index-test] When building with BUILD_CLANG_ONLY=YES, include c-index-test.
It is part of libclang and has other uses besides running the clang tests.
Ted Kremenek [Tue, 6 Nov 2012 06:36:45 +0000 (06:36 +0000)]
Remove completely irrelevant code from USR generation.
Thanks to Richard Smith for pointing this out. This code stopped
serving its purpose during r103212 in a refactoring. My initial
fix was to add back the logic to abort the USR generation for
InternalLinkage, but enough tests broke suspiciously that I fear
that USR generation for cursors with InternalLinkage is now expected
by some clients (where it wasn't the case when the refactoring
took place). I don't own this code anymore and have not looked
at it for some time, but clearly this code is dead and can be removed
pending further review on the proper logic here.
Richard Smith [Tue, 6 Nov 2012 01:12:02 +0000 (01:12 +0000)]
Per discussion on cfe-commits, treat -faddress-sanitizer,
-fno-address-sanitizer, -fthread-sanitizer, -fno-thread-sanitizer, and
-fcatch-undefined-behavior as deprecated: produce a warning if they are used
pointing to the corresponding -fsanitize= option. In passing add the missing
'-' to some diagnostics.
[PCH] Write out the ClassTemplateDecl::Common::InjectedClassNameType type
reference instead of relying on computing it.
In general, if storage is no issue, it is preferable to deserialize info from
the PCH instead of trying to recompute it after the PCH was loaded.
The incentive to change this now was due to r155303 changing how friend template
classes in dependent contexts are handled; such classes can now be chained to
a previous template class but the computed InjectedClassNameType may be different
due to the extra template parameters from the dependent context.
The new handling requires more investigation but, in the meantime, writing out
InjectedClassNameType fixes PCH issue in rdar://12627738.
Douglas Gregor [Mon, 5 Nov 2012 23:58:27 +0000 (23:58 +0000)]
Have the parser initialize Sema before it consumes the first
token. This is important because the first token could actually be
after an #include that triggers a module import, which might use
either Sema or the AST consumer before it would have been initialized.
Daniel Dunbar [Mon, 5 Nov 2012 22:53:33 +0000 (22:53 +0000)]
Frontend: Add support for reading named pipes as the main file.
- The whole {File,Source}Manager is built around wanting to pre-determine the
size of files, so we can't fit this in naturally. Instead, we handle it like
we do STDIN, where we just replace the main file contents upfront.
Manman Ren [Mon, 5 Nov 2012 22:42:46 +0000 (22:42 +0000)]
ARM byval: when type alignment is bigger than ABI alignment, we can't guarantee
the type alignment of the byval argument. This patch will disable byval in this case,
it also increases the size threshold for turning on byval.
Richard Smith [Mon, 5 Nov 2012 22:21:05 +0000 (22:21 +0000)]
Use the individual -fsanitize=<...> arguments to control which of the UBSan
checks to enable. Remove frontend support for -fcatch-undefined-behavior,
-faddress-sanitizer and -fthread-sanitizer now that they don't do anything.
Richard Smith [Mon, 5 Nov 2012 22:04:41 +0000 (22:04 +0000)]
Add -fsanitize=<sanitizers> argument to driver and frontend, and add
-fno-sanitize=<sanitizers> argument to driver. These allow ASan, TSan, and the
various UBSan checks to be enabled and disabled separately. Right now, the
different modes can't be combined, but the intention is that combining UBSan
and the other sanitizers will be permitted in the near future.
Currently, the UBSan checks will all be enabled if any of them is; that will be
fixed by the next patch.
Douglas Gregor [Mon, 5 Nov 2012 20:11:10 +0000 (20:11 +0000)]
Make cpuid.h actually work with -std=c99 <rdar://problem/12552716>.
While we're here, extend the module map to cover most of the
newly-added instrinsic headers. Only wmmintrin.h is missing, because
it needs to be split into AES/PCLMUL subheaders (as a separate commit).
Douglas Gregor [Mon, 5 Nov 2012 19:45:09 +0000 (19:45 +0000)]
Hash the various compiler version, target, preprocessor, and
header-search options into the module hash. We're just using
ADT/Hashing.hpp for this, which isn't as cryptographically strong as
I'd like, but it'll do. If someone contributes (say) and MD4
implementation, we'd happily switch to that.
Ulrich Weigand [Mon, 5 Nov 2012 19:13:42 +0000 (19:13 +0000)]
On PowerPC64, integer arguments and return values need to be sign- or
zero-extended to 64 bits. This information is currently provided to
the back end by setting "signext" or "zeroext" attributes. However,
this is done only for integer types *smaller* than i32, not for i32
itself. This causes clang to generate code violating the ABI, which
results in a failure of the tramp3d-v4 test case (due to calling a
system library routine without ABI-required extension).
This patch implements custom versions of classifyArgumentType and
classifyReturnType for PPC64_SVR4_ABIInfo, which are the same as the
default versions except that they also classify "int" and "unsigned int"
as types needing extending. This fixed tramp3d-v4 on PowerPC64.
Jordan Rose [Mon, 5 Nov 2012 16:58:00 +0000 (16:58 +0000)]
[analyzer] Move convenience REGISTER_*_WITH_PROGRAMSTATE to CheckerContext.h
As Anna pointed out, ProgramStateTrait.h is a relatively obscure header,
and checker writers may not know to look there to add their own custom
state.
The base macro that specializes the template remains in ProgramStateTrait.h
(REGISTER_TRAIT_WITH_PROGRAMSTATE), which allows the analyzer core to keep
using it.
Fixes liftime of captured block variables in mrr mode, per John's feedback, as
well as couple of tests which were not being excercised because of TYPOs.
Eli Friedman [Sat, 3 Nov 2012 03:36:51 +0000 (03:36 +0000)]
Add a proper algorithm to compute accurate source ranges for diagnostics with
caret locations and source ranges in macros. Makes ranges more accurate
in some cases, and fixes an assertion failure.
Jordan Rose [Fri, 2 Nov 2012 23:49:29 +0000 (23:49 +0000)]
[analyzer] Add some convenience accessors to CallEvent, and use them.
These are CallEvent-equivalents of helpers already accessible in
CheckerContext, as part of making it easier for new checkers to be written
using CallEvent rather than raw CallExprs.
Thread safety analysis: Fixed ICE caused by double delete when late parsed
attributes are attached to function declarations nested inside a class method.
Richard Smith [Fri, 2 Nov 2012 20:32:19 +0000 (20:32 +0000)]
Add -lpthread when building with Ubsan on Linux, in preparation for making libclang-rt.ubsan pull in sanitizer_common, which in turn depends on pthreads.
Manuel Klimek [Fri, 2 Nov 2012 01:31:03 +0000 (01:31 +0000)]
Insert interception point onStartOfTranslationUnit.
Often users of the ASTMatchers want to add tasks that are done once per
translation unit, for example, cleaning up caches. Combined with the
interception point for the end of source file one can add to the factory
creation, this covers the cases we've seen users need.
Richard Smith [Thu, 1 Nov 2012 22:13:39 +0000 (22:13 +0000)]
Remove divison-by-zero checks from -ftrapv. These checks were incompatible with
g++'s -ftrapv, failed to call the -ftrapv overflow handler, and are still
available under -fcatch-undefined-behavior.
objective-C block meta-data. This patch completes meta-data
generation for captured block variables in arc mode. This includes
inlined version of the meta-data when it can be done. It also includes
severat tests. This is wip. // rdar://12184410.
Make the FilenameRange of the InclusionDirective callback more accurate,
preserve the macro location of the range end if the filename came from a macro.
Richard Smith [Thu, 1 Nov 2012 07:22:08 +0000 (07:22 +0000)]
-fcatch-undefined-behavior: Start checking loads and stores for null pointers.
We want the diagnostic, and if the load is optimized away, we still want to
trap it. Stop checking non-default address spaces; that doesn't work in
general.
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