Commit Graph

830 Commits

Author SHA1 Message Date
Daniel Jasper ca9f73812c Add -fmodule-map-file option.
With this option, arbitrarily named module map files can be specified
to be loaded as required for headers in the respective (sub)directories.

This, together with the extern module declaration allows for specifying
module maps in a modular fashion without the need for files called
"module.map".

Among other things, this allows a directory to contain two modules that
are completely independent of one another.

Review: http://llvm-reviews.chandlerc.com/D1697.
llvm-svn: 191284
2013-09-24 09:27:13 +00:00
Daniel Jasper ba7f2f7110 Module use declarations (II)
Review: http://llvm-reviews.chandlerc.com/D1546.

I have picked up this patch form Lawrence
(http://llvm-reviews.chandlerc.com/D1063) and did a few changes.

From the original change description (updated as appropriate):
This patch adds a check that ensures that modules only use modules they
have so declared. To this end, it adds a statement on intended module
use to the module.map grammar:

  use module-id

A module can then only use headers from other modules if it 'uses' them.
This enforcement is off by default, but may be turned on with the new
option -fmodules-decluse.

When enforcing the module semantics, we also need to consider a source
file part of a module. This is achieved with a compiler option

-fmodule-name=<module-id>.

The compiler at present only applies restrictions to the module directly
being built.

llvm-svn: 191283
2013-09-24 09:14:14 +00:00
Reid Kleckner 1784d2fc9c Update -fmsc-version docs for r190908, which set the default to 1700
llvm-svn: 191098
2013-09-20 18:01:52 +00:00
Reid Kleckner eb248d7fd8 Fix ReST links I just added to the manual
llvm-svn: 191097
2013-09-20 17:54:39 +00:00
Reid Kleckner d128f8a252 Clarify that we silently ignore some MS extensions like IDL attributes
llvm-svn: 191096
2013-09-20 17:51:00 +00:00
Reid Kleckner 993e72a68e Use -fms-compatibility to trigger lookup into dep. bases
Update the docs for -fms-extensions and -fms-compatibility to try to
clarify the difference between the two.

llvm-svn: 191095
2013-09-20 17:04:25 +00:00
Hal Finkel c4d7c82c7f Add the intrinsic __builtin_convertvector
LLVM supports applying conversion instructions to vectors of the same number of
elements (fptrunc, fptosi, etc.) but there had been no way for a Clang user to
cause such instructions to be generated when using builtin vector types.

C-style casting on vectors is already defined in terms of bitcasts, and so
cannot be used for these conversions as well (without leading to a very
confusing set of semantics). As a result, this adds a __builtin_convertvector
intrinsic (patterned after the OpenCL __builtin_astype intrinsic). This is
intended to aid the creation of vector intrinsic headers that create generic IR
instead of target-dependent intrinsics (in other words, this is a generic
_mm_cvtepi32_ps). As noted in the documentation, the action of
__builtin_convertvector is defined in terms of the action of a C-style cast on
each vector element.

llvm-svn: 190915
2013-09-18 03:29:45 +00:00
Benjamin Kramer 4d6efbb28a Add a define for the ObjFW runtime ABI version.
This removes __has_feature(objc_msg_lookup_stret), as it is not required
anymore after this patch.

Patch by Jonathan Schleifer!

llvm-svn: 190791
2013-09-16 16:31:49 +00:00
Ed Schouten 401aebab93 Make __has_extension(c_thread_local) work.
Unlike C++11's "thread_local" keyword, C11's "_Thread_local" is in the
reserved namespace, meaning we provide it unconditionally; it is marked
as KEYALL in TokenKinds.def.

This means that like all the other C11 keywords, we can expose its
presence through __has_extension().

llvm-svn: 190755
2013-09-14 16:17:20 +00:00
Jordan Rose 8dddf8ff20 [analyzer] Fix copy-paste error in internal docs.
Patch by Jared Grubb!

llvm-svn: 190651
2013-09-13 00:44:57 +00:00
Roman Divacky 786d32ecf7 Clarify the status of PowerPC support.
llvm-svn: 190533
2013-09-11 17:12:49 +00:00
Daniel Jasper 97292843d0 Support for modular module-map-files
This patch is the first step to make module-map-files modular (instead
of requiring a single "module.map"-file per include directory). This
step adds a new "extern module" declaration that enables
module-map-files to reference one another along with a very basic
implementation.

The next steps are:

* Combine this with the use-declaration (from
  http://llvm-reviews.chandlerc.com/D1546) in order to only load module
  map files required for a specific compilation.
* Add an additional flag to start with a specific module-map-file (instead
  of requiring there to be at least one "module.map").

Review: http://llvm-reviews.chandlerc.com/D1637
llvm-svn: 190497
2013-09-11 07:20:44 +00:00
Nico Rieck 7857d46c64 Add -fansi-escape-codes option
Some build systems use pipes for stdin/stderr. On nix-ish platforms colored
output can be forced by -fcolor-diagnostics. On Windows this option has
no effect in these cases because LLVM uses the console API (which only
operates on the console buffer) even if a console wrapper capable of
interpreting ANSI escape codes is used.

The -fansi-escape-codes option allows switching from the console API to
ANSI escape codes. It has no effect on other platforms.

llvm-svn: 190464
2013-09-11 00:38:02 +00:00
Hans Wennborg 9f6581bb88 Allow _clang-format as alternative to .clang-format config filename
Dotfiles are impractical on Windows. This makes clang-format search
for the style configuration file as '_clang-format' in addition to
the usual '.clang-format'. This is similar to how VIM searches for
'_vimrc' on Windows.

Differential Revision: http://llvm-reviews.chandlerc.com/D1629

llvm-svn: 190413
2013-09-10 15:41:12 +00:00
Sean Silva 98c64d4dca [docs] Prominently note modules are experimental.
It was really hard to tell that modules are experimental. This makes it
really clear by

* Noting the experimental status in the title.
* Moving the "warning" above the table of contents.

llvm-svn: 190340
2013-09-09 19:57:49 +00:00
Sean Silva fcb46a0dec [docs] End users should see just "Clang"
Half the internet has wildly incorrect ideas about what LLVM is (in
particular, many get the impression that LLVM is some magical
cross-platform runtime), so saying "LLVM" near "cross-compilation" in a
user-facing doc might provoke confusion.

llvm-svn: 190338
2013-09-09 19:50:47 +00:00
Sean Silva 3c53673b50 [docs] Fix Sphinx toctree warning.
Last I heard LSan is getting close to prime-time, but for now keep
LeakSanitizer.rst hidden (especially since it contains so little
content).

llvm-svn: 190337
2013-09-09 19:50:46 +00:00
Sean Silva a928c24984 [docs] Fix some finicky Sphinx warnings.
llvm-svn: 190336
2013-09-09 19:50:40 +00:00
Sean Silva 7a8b6ca2d1 [docs] Typographical and rewording fixes.
llvm-svn: 190333
2013-09-09 19:30:44 +00:00
Benjamin Kramer 60509af49a Fix constructor-related typos.
Noticed by Roman Divacky.

llvm-svn: 190311
2013-09-09 14:48:42 +00:00
Renato Golin f70e35ddc4 Adding cross-compilation instructions to Clang
llvm-svn: 190281
2013-09-08 20:44:39 +00:00
Reid Kleckner 725b7b3786 manual: Fix RST reference to MS extension support
llvm-svn: 190101
2013-09-05 21:29:35 +00:00
Alexander Kornienko 472d27aa22 A minor fix in the documentation.
llvm-svn: 189947
2013-09-04 15:14:18 +00:00
Alexander Kornienko d278e0eee3 Added documentation for clang-format style options.
Summary:
The main contents is in the ClangFormatStyleOptions.rst, which can be
updated from the Format.h by the dump_format_style.py script.

Reviewers: djasper, klimek

Reviewed By: klimek

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1597

llvm-svn: 189946
2013-09-04 15:09:13 +00:00
Alexander Kornienko e3648fbe1a Added WebKit style to the BasedOnStyle handling and to the relevant help messages.
llvm-svn: 189765
2013-09-02 16:39:23 +00:00
Alexander Kornienko d83adf30c6 Whitespace changes in help messages + updated help output in .rst file.
llvm-svn: 189762
2013-09-02 15:30:26 +00:00
Michael Gottesman 043c53b5a8 [doxygen] Add a few missing variables to the doxygen.cfg.in for external search and cleaned up external_search_map.
llvm-svn: 189523
2013-08-28 21:55:41 +00:00
Michael Gottesman 22a351d314 [doxygen] Added support for doxygen external search.
llvm-svn: 189509
2013-08-28 20:29:44 +00:00
Michael Gottesman 8f897af39c [doxygen] Added code for generating doxygen documentation for clang for cmake.
llvm-svn: 189508
2013-08-28 20:29:40 +00:00
Ted Kremenek 1aab6834fa Remove comment on the availability of boxed expressions. They have been available for a while.
llvm-svn: 189446
2013-08-28 06:03:59 +00:00
Samuel Benzaquen 85ec25d21c Rewrite eachOf/allOf/anyOf to use a variadic operator.
Summary:
Rewrite eachOf/allOf/anyOf to use a variadic operator, instead of hand-written calls to Polymorphic matchers.
This simplifies their definition and future changes to add them to the dynamic registry.

Reviewers: klimek

CC: cfe-commits, revane

Differential Revision: http://llvm-reviews.chandlerc.com/D1427

llvm-svn: 189357
2013-08-27 15:11:16 +00:00
Shuxin Yang 0e61122bb3 Add note about following two commands are no longer equivalent.
- "clang -O3 -flto a.c -c", and 
 - "clang -emit-llvm a.c -c" 

Thank Rafael for tips.

llvm-svn: 189150
2013-08-23 22:01:03 +00:00
Rafael Espindola 493f045e75 Don't imply -flto with -O4.
We now saturate at -O3.

llvm-svn: 189149
2013-08-23 21:49:00 +00:00
DeLesley Hutchins c2ecf0d815 Update to consumed analysis.
Patch by chris.wailes@gmail.com.  The following functionality was added:

* The same functionality is now supported for both CXXOperatorCallExprs and CXXMemberCallExprs.
* Factored out some code in StmtVisitor.
* Removed variables from the state map when their destructors are encountered.
* Started adding documentation for the consumed analysis attributes.

llvm-svn: 189059
2013-08-22 20:44:47 +00:00
Peter Collingbourne 730f3c8574 DataFlowSanitizer: Add a design doc paragraph on checking ABI consistency.
Differential Revision: http://llvm-reviews.chandlerc.com/D1443

llvm-svn: 189055
2013-08-22 20:08:20 +00:00
Samuel Benzaquen bd7d887f18 Refactor ArgumentAdaptativeMatcher matchers to remove the template from their declaration.
Summary:
Refactor ArgumentAdaptativeMatcher matchers to remove the template from their declaration.
This facilitates dynamic registration. Change the registry code to use the regular overload resolution mechanism for adaptative matchers.

Reviewers: klimek

CC: cfe-commits, revane

Differential Revision: http://llvm-reviews.chandlerc.com/D1402

llvm-svn: 188560
2013-08-16 16:19:42 +00:00
Evgeniy Stepanov fd75a2ca37 Update sanitizer attribute documentation to match behaviour change in r187967.
llvm-svn: 188459
2013-08-15 13:57:11 +00:00
Peter Collingbourne 276be3c57c Add support for -fsanitize-blacklist and default blacklists for DFSan.
Also add some documentation.

Differential Revision: http://llvm-reviews.chandlerc.com/D1346

llvm-svn: 188403
2013-08-14 18:54:18 +00:00
Richard Trieu 98ca59ed3b Fix typo in template diffing docs.
llvm-svn: 188120
2013-08-09 22:52:48 +00:00
Peter Collingbourne c377275a4a DataFlowSanitizer; Clang changes.
DataFlowSanitizer is a generalised dynamic data flow analysis.

Unlike other Sanitizer tools, this tool is not designed to detect a
specific class of bugs on its own.  Instead, it provides a generic
dynamic data flow analysis framework to be used by clients to help
detect application-specific issues within their own code.

Differential Revision: http://llvm-reviews.chandlerc.com/D966

llvm-svn: 187925
2013-08-07 22:47:34 +00:00
Alexey Samsonov 2de6833809 Documentation for sanitizer special case list format and -f(no-)?sanitize-blacklist flag
llvm-svn: 187871
2013-08-07 08:23:32 +00:00
Daniel Jasper 07e6c407bc Add option to disable module loading.
This patch was created by Lawrence Crowl and reviewed in:
http://llvm-reviews.chandlerc.com/D963

llvm-svn: 187738
2013-08-05 20:26:17 +00:00
Craig Topper 50ad5b7354 Add support for passing -1 to __builtin_shufflevector to signify an undefined element value to match IR capabilities.
llvm-svn: 187694
2013-08-03 17:40:38 +00:00
Eli Friedman f24bd3bdba Fix GNU ObjC ABI for a message returning a struct.
This allows the ObjFW runtime to correctly implement message forwarding
for messages which return a struct.

Patch by Jonathan Schleifer.

llvm-svn: 187174
2013-07-26 00:53:29 +00:00
Manuel Klimek dba64f1aff Fix incorrect documentation generation for type matchers.
llvm-svn: 187104
2013-07-25 06:05:50 +00:00
Richard Smith 4fb09720cf Rename feature test for lambda init-captures from cxx_generalized_capture to
cxx_init_capture. "generalized" is neither descriptive nor future-proof. No
compatibility problems expected, since we've never advertised having this
feature.

llvm-svn: 187058
2013-07-24 17:51:13 +00:00
Richard Smith c0f7b81d89 Update documentation to match current C++1y feature set.
llvm-svn: 187055
2013-07-24 17:41:31 +00:00
Manuel Klimek e88204c4ce Update docs.
llvm-svn: 187022
2013-07-24 05:46:07 +00:00
Eli Friedman a54333264a Fix bug in computing POD-for-layout.
A class with a field of non-POD-for-layout type is not POD-for-layout.
This computation should not depend on whether the field is of POD type
in the language sense.

Fixes PR16537.

Patch by Josh Magee.

llvm-svn: 186741
2013-07-20 01:06:31 +00:00
Richard Smith 83c728b581 Update users manual to indicate:
1) clang++ must be used when linking C++ programs using -fsanitize=undefined, and
  2) MSan can't be combined with TSan or ASan.

llvm-svn: 186711
2013-07-19 19:06:48 +00:00