Commit Graph

426 Commits

Author SHA1 Message Date
John McCall 092701c326 Describe the ARC runtime support calls.
llvm-svn: 133385
2011-06-19 09:36:02 +00:00
John McCall 9cc574d538 Clarify the semantics of init methods, and point out a few places
where mismatched semantics can cause undefined behavior.

llvm-svn: 133341
2011-06-18 08:15:19 +00:00
John McCall f8d4799267 A couple of minor changes to the ARC spec, plus a new section
specifying that retain/release/autorelease/retainCount are forbidden,
plus a section talking about the behavior of dealloc.

llvm-svn: 133340
2011-06-18 07:31:30 +00:00
Douglas Gregor d7357a9b8e Objective-C++ ARC: eliminate the utterly unjustified loophole that
silently dropped ownership qualifiers that were being applied to
ownership-qualified, substituted type that was *not* a substituted
template type parameter. We now provide a diagnostic in such cases,
and recover by dropping the added qualifiers.

Document this behavior in the ARC specification.

llvm-svn: 133309
2011-06-17 23:16:24 +00:00
Douglas Gregor 4fdf57b0b2 Fix a grammaro
llvm-svn: 133304
2011-06-17 22:19:27 +00:00
Douglas Gregor e46db90c9a Objective-ARC++: infer template type arguments of
ownership-unqualified retainable object type as __strong. This allows
us to write, e.g.,

  std::vector<id>

and we'll infer that the vector's element types have __strong
ownership semantics, which is far nicer than requiring:

  std::vector<__strong id>

Note that we allow one to override the ownership qualifier of a
substituted template type parameter, e.g., given

  template<typename T>
  struct X {
    typedef __weak T type;
  };

X<id> is treated the same as X<__strong id>. At instantiation type,
the __weak in "__weak T" overrides the (inferred or specified)
__strong on the template argument type, so that we can still provide
metaprogramming transformations.

This is part of <rdar://problem/9595486>.

llvm-svn: 133303
2011-06-17 22:11:49 +00:00
John McCall 31168b077c Automatic Reference Counting.
Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103
2011-06-15 23:02:42 +00:00
John McCall 556fad31d1 The specification document for the new ObjC Automatic Reference Counting
feature.

Implementation to follow. :)

llvm-svn: 133090
2011-06-15 21:21:53 +00:00
Chris Lattner dcb562dea4 remove the index page, we have dox now!
llvm-svn: 133087
2011-06-15 21:13:48 +00:00
Chris Lattner e67977214f mention new VLA behavior in gnu* vs c* mode dox.
llvm-svn: 133030
2011-06-15 00:41:40 +00:00
Blaine Garst f562bf239c fix example as per rdar://problem/9461587
llvm-svn: 133012
2011-06-14 21:41:00 +00:00
Eli Friedman 97f3d1a5ee Update extensions section of the docs to account for wacky gcc stuff we did end up implementing.
llvm-svn: 132947
2011-06-13 23:12:01 +00:00
Douglas Gregor 33823727c8 Implement Objective-C Related Result Type semantics.
Related result types apply Cocoa conventions to the type of message
sends and property accesses to Objective-C methods that are known to
always return objects whose type is the same as the type of the
receiving class (or a subclass thereof), such as +alloc and
-init. This tightens up static type safety for Objective-C, so that we
now diagnose mistakes like this:

t.m:4:10: warning: incompatible pointer types initializing 'NSSet *'
with an
      expression of type 'NSArray *' [-Wincompatible-pointer-types]
  NSSet *array = [[NSArray alloc] init];
         ^       ~~~~~~~~~~~~~~~~~~~~~~
/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:72:1:
note: 
      instance method 'init' is assumed to return an instance of its
      receiver
      type ('NSArray *')
- (id)init;
^

It also means that we get decent type inference when writing code in
Objective-C++0x:

  auto array = [[NSMutableArray alloc] initWithObjects:@"one",  @"two",nil];
  //    ^ now infers NSMutableArray* rather than id

llvm-svn: 132868
2011-06-11 01:09:30 +00:00
Ted Kremenek 8c66ae7ddc Remove derelict documentation.
llvm-svn: 132407
2011-06-01 17:45:02 +00:00
Argyrios Kyrtzidis 0e37afa15e A StringRef-ication of the DiagnosticIDs API and internals.
Patch by Matthieu Monrocq with tweaks by me to avoid StringRefs in the static
diagnostic data structures, which resulted in a huge global-var-init function.

Depends on llvm commit r132046.

llvm-svn: 132047
2011-05-25 05:05:01 +00:00
Douglas Gregor 80af31397a Audit and finish the implementation of C++0x nullptr, fixing two
minor issues along the way:
  - Non-type template parameters of type 'std::nullptr_t' were not
  permitted.
  - We didn't properly introduce built-in operators for nullptr ==,
  !=, <, <=, >=, or > as candidate functions .

To my knowledge, there's only one (minor but annoying) part of nullptr
that hasn't been implemented: catching a thrown 'nullptr' as a pointer
or pointer-to-member, per C++0x [except.handle]p4.

llvm-svn: 131813
2011-05-21 23:15:46 +00:00
Douglas Gregor 643c922e66 Introduce the -fdiagnostics-format=xxx option to control how Clang
prints the file, line, and column of a diagnostic. We currently
support Clang's normal format, MSVC, and Vi formats.

Note that we no longer change the diagnostic format based on
-fms-extensions.

Patch by Andrew Fish!

llvm-svn: 131794
2011-05-21 17:07:29 +00:00
Peter Collingbourne d5d410faa8 Introduce __has_extension macro
__has_extension is a function-like macro which takes the same set
of feature identifiers as __has_feature.  It evaluates to 1 if the
feature is supported by Clang in the current language (either as a
language extension or a standard language feature) or 0 if not.

At the same time, add support for the C1X feature identifiers
c_generic_selections (renamed from generic_selections) and
c_static_assert, and document them.

Patch by myself and Jean-Daniel Dupas.

llvm-svn: 131308
2011-05-13 20:54:45 +00:00
Peter Collingbourne d12d712c84 Delete doxygen.cfg, and use cwd-relative paths in doxygen.cfg.in.
Now "make doxygen" works for clang.

llvm-svn: 131282
2011-05-13 03:29:06 +00:00
Douglas Gregor 347d626cf7 Implement CWG1170, which makes access-control errors into template
argument deduction failures. Only implemented in C++0x, since this is
a significant change in behavior from C++98/03.

llvm-svn: 131209
2011-05-11 23:45:11 +00:00
Richard Smith 3f1b5d077b Implement support for C++0x alias templates.
llvm-svn: 130953
2011-05-05 21:57:07 +00:00
Chad Rosier b9a8525bab Documentation for -Oz; Updated synopsis and item.
llvm-svn: 130570
2011-04-30 02:04:10 +00:00
Chad Rosier bc8d7c27d9 Add documentation for -Oz flag.
llvm-svn: 130569
2011-04-30 01:40:58 +00:00
Richard Smith 9bc6eedab4 Add __has_feature(cxx_range_for) check for C++11 range-based for loop.
llvm-svn: 129573
2011-04-15 15:14:40 +00:00
Chris Lattner 57540c5be0 fix a bunch of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129559
2011-04-15 05:22:18 +00:00
Peter Collingbourne 9114759641 C1X: implement generic selections
As an extension, generic selection support has been added for all
supported languages.  The syntax is the same as for C1X.

llvm-svn: 129554
2011-04-15 00:35:48 +00:00
Chris Lattner 9cb59fa834 add a __sync_swap builtin to fill out the rest of the __sync builtins.
Patch by Dave Zarzycki!

llvm-svn: 129189
2011-04-09 03:57:26 +00:00
Chris Lattner e094ee0a34 typo fix + expand
llvm-svn: 129167
2011-04-08 22:58:43 +00:00
Evan Cheng 298de937e7 Minor format fix.
llvm-svn: 129164
2011-04-08 22:34:21 +00:00
Evan Cheng fbbacc9241 Document -ftrap-function= option
llvm-svn: 129162
2011-04-08 22:18:01 +00:00
NAKAMURA Takumi 584f2de0a3 docs/UsersManual.html: Fix some inconsistent HTML elements.
llvm-svn: 128876
2011-04-05 04:31:31 +00:00
NAKAMURA Takumi a33296392e docs/UsersManual.html: "&quot;"ize in a paragraph. A few unpaired quotations might confuse HTML-aware text edtors.
llvm-svn: 128871
2011-04-05 00:57:02 +00:00
NAKAMURA Takumi ce60187a89 docs/UsersManual.html: Add cygming notes.
llvm-svn: 128819
2011-04-04 15:02:41 +00:00
Anders Carlsson 69f1f9391b we can now claim to fully support the override control feature in C++0x.
llvm-svn: 128281
2011-03-25 15:04:23 +00:00
Chris Lattner 04fe64f899 and now there are 3!
llvm-svn: 128001
2011-03-21 16:25:11 +00:00
Peter Collingbourne e4c02400ad Code modification hints have been known as fix-it hints for almost
a year now.  Update the internals manual.

llvm-svn: 127983
2011-03-21 01:45:18 +00:00
Ted Kremenek d15609a582 Remove '-Xclang' and '-mllvm' entries from Clang man page. The later is only available in debug builds and the former is not supposed to be used by end-users.
llvm-svn: 127914
2011-03-18 22:11:40 +00:00
John McCall 6107fc9e68 Improve the documentation for some of the analyzer attributes I added
a while back.

llvm-svn: 127866
2011-03-18 03:51:49 +00:00
Sebastian Redl c17003c66b Create __has_feature(cxx_noexcept) and mark it as working.
Find out that our C++0x status has only one field for noexcept expression and specification together, and that it was accidentally already marked as fully implemented.
This completes noexcept specification work.

llvm-svn: 127701
2011-03-15 21:17:12 +00:00
Peter Collingbourne 2f1e36bfd0 Rename tok::eom to tok::eod.
The previous name was inaccurate as this token in fact appears at
the end of every preprocessing directive, not just macro definitions.
No functionality change, except for a diagnostic tweak.

llvm-svn: 126631
2011-02-28 02:37:51 +00:00
Richard Smith bb7dcf59a0 Update the www to indicate that auto is now implemented.
llvm-svn: 126280
2011-02-23 00:41:16 +00:00
Chris Lattner c4ef61af9a we now support __label__
llvm-svn: 125826
2011-02-18 04:12:08 +00:00
Chris Lattner 18703d41f0 fix two broken links and some out of date writing, PR9174
llvm-svn: 125484
2011-02-14 06:42:50 +00:00
Douglas Gregor 7115aee109 Add a __has_feature check for default template arguments in function
templates, a C++0x feature.

llvm-svn: 124973
2011-02-05 20:35:30 +00:00
Douglas Gregor 7c60768590 Add __has_feature() for each of the type traits
llvm-svn: 124820
2011-02-03 21:57:35 +00:00
Jeffrey Yasskin f66a5283ed Document how to add an attribute to clang. This should be reviewed by someone
who actually knows how it works.

llvm-svn: 124506
2011-01-28 23:41:54 +00:00
Jeffrey Yasskin bbc4eea2c2 Revert r124217 because it didn't catch the actual error case it was trying to
catch:

  lock_guard(my_mutex);

declares a variable instead of creating a temporary.

llvm-svn: 124398
2011-01-27 19:17:54 +00:00
Douglas Gregor 56d5f0abaa Add __has_feature(cxx_reference_qualified_functions); update tests and
documentation.

llvm-svn: 124322
2011-01-26 21:25:54 +00:00
Jeffrey Yasskin 08a4f8f197 Add an attribute to forbid temporary instances of a type. This allows class
authors to write 

  class __attribute__((forbid_temporaries)) Name { ... };

when they want to force users to name all variables of the type. This protects
people from doing things like creating a scoped_lock that only lives for a
single statement instead of an entire scope.

The warning produced by this attribute can be disabled by
-Wno-forbid-temporaries.

llvm-svn: 124217
2011-01-25 20:08:12 +00:00
John McCall 46669c0996 Document the ns_returns_retained, ns_consumed, etc. attributes.
llvm-svn: 124176
2011-01-25 04:26:21 +00:00
Douglas Gregor fa69024463 Eliminate the last reference to concepts, from Jean-Daniel Dupas
llvm-svn: 124118
2011-01-24 15:22:41 +00:00
Anders Carlsson 3bbfb7f64b Fix the __has_attribute example; we don't have an override attribute anymore.
llvm-svn: 124106
2011-01-24 03:54:51 +00:00
Chris Lattner c2989b3718 fix some typos, patch by Jonathan Wakely!
llvm-svn: 124105
2011-01-24 03:47:59 +00:00
Chris Lattner 7d29d4503a fix a broken example, PR9005, patch by Jonathan Wakely!
llvm-svn: 124104
2011-01-24 03:47:34 +00:00
Chris Lattner d8d7543419 remove some crazy leftover thing.
llvm-svn: 124098
2011-01-24 02:53:58 +00:00
Douglas Gregor 312ab72dbd Eradicate any mention of C++0x concepts.
llvm-svn: 123860
2011-01-19 23:15:20 +00:00
Bob Wilson ce3ee6539e NEON vector support for ARM is in pretty good shape now. Update the docs.
llvm-svn: 123183
2011-01-10 17:55:14 +00:00
Douglas Gregor e350923a9b Fix documentation typo, from nobled.
llvm-svn: 121768
2010-12-14 16:21:49 +00:00
Eric Christopher b0fd4599de And more gzip goodness for clang.
llvm-svn: 121453
2010-12-10 01:59:28 +00:00
Chris Lattner 19e0fd0b2b fix typo
llvm-svn: 120254
2010-11-28 18:19:13 +00:00
Chris Lattner 2a6ee91619 move AdvanceToTokenCharacter and getLocForEndOfToken from
Preprocessor to Lexer where they make more sense.

llvm-svn: 119474
2010-11-17 07:05:50 +00:00
Chris Lattner e56c786f11 make the example a bit better, encouraging people to use "suggestions of what to use" in the message :)
llvm-svn: 118612
2010-11-09 19:43:35 +00:00
John McCall f71b45367f Document Clang's support for attributes on individual enumerators and
tweak the documentation for deprecation-with-message.  Provide __has_feature
tests for both.  rdar://problem/8605692

llvm-svn: 118435
2010-11-08 19:48:17 +00:00
Blaine Garst cfdb75891d expand discussion of __block C++ on-stack objects
llvm-svn: 117618
2010-10-28 23:30:10 +00:00
Chris Lattner 4935b45d74 make it really clear that vla != flexible arrays
llvm-svn: 117522
2010-10-28 02:20:32 +00:00
Blaine Garst 03b99365e3 small tweaks to reflect statements of what really ever shipped. ABI is, and has been, accurate for what we ship.
llvm-svn: 117504
2010-10-27 22:59:01 +00:00
Blaine Garst 2314079ef0 reconcile missing typos & delete obsolete pre-SnowLeopard section w.r.t. prior repository for this document
llvm-svn: 117492
2010-10-27 21:22:46 +00:00
Douglas Gregor d2893dd0b9 Document how source ranges work
llvm-svn: 117450
2010-10-27 16:02:28 +00:00
Michael J. Spencer 4992ca4b17 Reorganize predefined macros for all Windows targets.
This adds an option to set the _MSC_VER macro without
recompiling. This is very useful when testing compatibility
with the Windows SDK and c++stdlib headers.

-fmsc-version=<version> (defaults to VS2003 (1300))

llvm-svn: 116999
2010-10-21 05:21:48 +00:00
Anders Carlsson 274a70ed7f Add a __has_attribute macro that works much like __has_feature and __has_builtin.
llvm-svn: 116906
2010-10-20 02:31:43 +00:00
Chris Lattner a09e8efd1f Per discussion with Sanjiv, remove the PIC16 target from mainline. When/if
it comes back, it will be largely a rewrite, so keeping the old codebase
in tree isn't helping anyone.

llvm-svn: 116191
2010-10-11 05:44:49 +00:00
Douglas Gregor 0bf3140424 Implement C++0x scoped enumerations, from Daniel Wallin! (and tweaked a
bit by me). 

llvm-svn: 116122
2010-10-08 23:50:27 +00:00
Douglas Gregor 63b0a1e9fb Fix a typo in the Clang man page, from Alexander Best.
llvm-svn: 116102
2010-10-08 21:03:07 +00:00
Fariborz Jahanian c74073cd20 Patch for adding message to unavailable attribute.
And its documentation.
Finishes off // rdar: // 6734520.

llvm-svn: 115862
2010-10-06 23:12:32 +00:00
Douglas Gregor 7fb25418ed Implement the C++0x "trailing return type" feature, e.g.,
auto f(int) -> int

from Daniel Wallin!

(With a few minor bug fixes from me).

llvm-svn: 115322
2010-10-01 18:44:50 +00:00
Douglas Gregor 3aa045491f Update Clang man page to say a little bit more about C++
llvm-svn: 114735
2010-09-24 17:26:14 +00:00
Daniel Dunbar c1dd0e97f3 Driver/Objective-C: Retool Objective-C ABI flags to be more usable, and actually
document behavior. Will wonders never cease.

llvm-svn: 114334
2010-09-20 18:19:55 +00:00
Daniel Dunbar 549decf4cc Update users manual comments on X86 and ARM support.
llvm-svn: 114311
2010-09-19 19:26:59 +00:00
Daniel Dunbar 092b6fb187 Driver: Add a -stdlib= argument which can be used to select the C++ standard
library to use.
 - This is currently useful for testing libc++; you can now use 'clang++
   -stdlib=libc++ t.cpp' to compile using it if installed.

 - In the future could also be used to select other standard library choices if
   alternatives become available (for example, to use an alternate C library).

llvm-svn: 113891
2010-09-14 23:12:40 +00:00
Argyrios Kyrtzidis 2716b9ae54 Update 'docs/PCHInternals.html' about how subexpressions are stored.
llvm-svn: 113760
2010-09-13 17:48:02 +00:00
Douglas Gregor c6876fe121 Document our extension to constant-fold __builtin_strlen and strlen
llvm-svn: 113699
2010-09-11 18:08:34 +00:00
John McCall e37a619715 Update the internals manual for the removal of Action, as well as other
changes that are much older.

llvm-svn: 112951
2010-09-03 05:07:55 +00:00
Dawn Perchik 68bb1b441f Add support for Borland extensions via option -fborland-extensions
(original patch r112791 was reverted due to a bug).

llvm-svn: 112915
2010-09-02 23:59:25 +00:00
Dawn Perchik f0882f90f3 Reverting rev 112791 - apparently -fborland-extensions is on all the time?!
llvm-svn: 112797
2010-09-02 02:18:55 +00:00
Dawn Perchik 1fcc18c7bc Add support for Borland extensions via option -fborland-extensions
llvm-svn: 112791
2010-09-02 01:12:01 +00:00
Sebastian Redl a93bb5b807 Implement __has_feature(cxx_inline_namespaces)
llvm-svn: 112671
2010-08-31 23:28:47 +00:00
Ted Kremenek 800ad06e8c Document '__clang_analyzer__'.
llvm-svn: 111935
2010-08-24 18:12:35 +00:00
Douglas Gregor 34a462538e Clarify documentation of escaping for backslash
llvm-svn: 111806
2010-08-23 14:03:03 +00:00
Douglas Gregor 12e2a06824 Eliminate some extraneous whitespace in the machine-parseable Fix-It output.
llvm-svn: 111610
2010-08-20 03:17:33 +00:00
Douglas Gregor a03c296e79 Fix some typos in the documentation of -fdiagnostics-parseable-fixits. Typos by me, patch by Eelis van der Weegen
llvm-svn: 111573
2010-08-19 23:31:13 +00:00
Douglas Gregor eec975ce5a Add machine-parseable Fix-It output as part of diagnostics, under the
flag -fdiagnostics-parseable-fixits, from Eelis van der Weegen!

llvm-svn: 111557
2010-08-19 20:24:43 +00:00
Daniel Dunbar 71323e66b6 Remove a gratuitous lie.
llvm-svn: 111253
2010-08-17 17:34:48 +00:00
Daniel Dunbar 1b8842d981 Update UsersManual, we support '#pragma align' now.
llvm-svn: 110040
2010-08-02 15:36:37 +00:00
Douglas Gregor 137b27da2e Document -f{no-}color-diagnostics
llvm-svn: 107985
2010-07-09 16:31:58 +00:00
Sebastian Redl 595c51342c Some preparatory work for chained PCH. No functionality change.
llvm-svn: 107915
2010-07-08 22:01:51 +00:00
Sebastian Redl bbace2a63d Fix a few errors in the internals doc.
llvm-svn: 107838
2010-07-07 23:42:27 +00:00
Douglas Gregor b7b04ae204 Remove redundant and incomplete bits from the users manual w.r.t. language conformance
llvm-svn: 107326
2010-06-30 22:04:24 +00:00
Daniel Dunbar 283fe3d07a build: Get CLANG_VERSION from Version.inc instead of depending on VER file directly.
llvm-svn: 106864
2010-06-25 17:33:49 +00:00
Daniel Dunbar e6c1daa8fd Makefile: Switch Clang Makefiles to always include the top-level Clang Makefile.
- This eliminates most dependencies on how Clang is installed relative to LLVM.

llvm-svn: 105637
2010-06-08 20:34:18 +00:00
Jeffrey Yasskin caa710dfd2 PR7245: Make binding a reference to a temporary without a usable copy
constructor into an extension warning into the error that C++98 requires.

llvm-svn: 105529
2010-06-07 15:58:05 +00:00
Jeffrey Yasskin 2f96e9f5c9 Add an extension to avoid an error when a global template has the same name as
a member template, and you try to call the member template with an explicit
template argument.  See PR7247 

For example, this downgrades the error to a warning in:

template<typename T> struct set{};
struct Value {
    template<typename T>
    void set(T value) {
    }
};
void foo() {
    Value v;
    v.set<double>(3.2);  // Warning here.
}

llvm-svn: 105518
2010-06-05 01:39:57 +00:00
Chris Lattner f3d0436077 fix incorrect tag
llvm-svn: 105189
2010-05-30 23:42:51 +00:00
Daniel Dunbar 406e3826e0 Update "users manual", PR2461 has been fixed.
llvm-svn: 104997
2010-05-28 19:43:31 +00:00
Nick Lewycky 42f9ba3790 Fix typo.
llvm-svn: 104898
2010-05-27 23:40:55 +00:00
Nick Lewycky de2291a717 Grammar fix: s/it's/its/g in
"it's spelling location and it's instantiation location"

llvm-svn: 104746
2010-05-26 21:48:10 +00:00
Chris Lattner b997626120 push categories forward a bit more: document them, add some
major buckets to catch parser and sema issues, add inline asm
category, and make diag groups take precedence over the 
sweeping categories just added.

llvm-svn: 104561
2010-05-24 21:35:18 +00:00
Daniel Dunbar 95dff818e7 docs: Man page tweaks, to mention the integrated assembler and the
-integrated-as and -no-integrated-as options.

llvm-svn: 104304
2010-05-21 00:28:14 +00:00
mike-m 9f08a6f1a8 Reverted r103214.
llvm-svn: 103222
2010-05-07 00:42:33 +00:00
mike-m 9bb682b713 2nd part of: Overhauled llvm/clang docs builds.
llvm-svn: 103214
2010-05-06 23:46:27 +00:00
Chris Lattner 336119f089 document -fdiagnostics-show-category
llvm-svn: 103067
2010-05-05 01:35:28 +00:00
Chris Lattner ef8c6e8ba7 fix a broken link, diagnostickinds.td was fissioned.
llvm-svn: 102851
2010-05-01 17:35:19 +00:00
Douglas Gregor 6602c25c0c Add Clang version inspection macros. Fixes PR6681.
llvm-svn: 102686
2010-04-30 02:51:06 +00:00
Nick Lewycky e97d39b0f2 concepts is not a keyword here and fix copy-pasto.
llvm-svn: 102172
2010-04-23 06:09:40 +00:00
Douglas Gregor ffed1cb339 Introduce a limit on the depth of the template instantiation backtrace
we will print with each error that occurs during template
instantiation. When the backtrace is longer than that, we will print
N/2 of the innermost backtrace entries and N/2 of the outermost
backtrace entries, then skip the middle entries with a note such as:

  note: suppressed 2 template instantiation contexts; use
  -ftemplate-backtrace-limit=N to change the number of template
  instantiation entries shown

This should eliminate some excessively long backtraces that aren't
providing any value.

llvm-svn: 101882
2010-04-20 07:18:24 +00:00
Chris Lattner b35583df52 add a new driver-level -ferror-limit=412 option, which causes clang to stop
emitting diagnostics after it has produced that many errors.  Give this a
default value of 20 which produces plenty of errors for people to fix before
recompiling but not so many that their entire console scrolls away when the
compiler gets confused.  The experience looks like this:

$ clang foo.c
<tons of crap>
foo.c:102:3: error: unknown type name 'somethingbad'
  somethingbad x;
  ^
fatal error: too many errors emitted, stopping now
36 warnings and 20 errors generated.

llvm-svn: 100689
2010-04-07 20:49:23 +00:00
Blaine Garst 55050630a9 improved wording around ABI
llvm-svn: 100536
2010-04-06 17:46:43 +00:00
Rafael Espindola fcc4739089 Document common clang compatibility issues.
Patch by Zhanyong Wan.

llvm-svn: 98708
2010-03-17 04:31:53 +00:00
Blaine Garst a41f71212a fix copyright & typo
llvm-svn: 98688
2010-03-16 22:02:16 +00:00
Chris Lattner 87c5e2f5d4 update link
llvm-svn: 98682
2010-03-16 21:43:03 +00:00
Blaine Garst ade4303e2b at least give the Apple ABI a name that reflects Apple in prep for other ABI specs that might come along
llvm-svn: 98678
2010-03-16 21:22:41 +00:00
Blaine Garst 1832cdb2d3 rev existing doc to account for recent ABI changes
llvm-svn: 98676
2010-03-16 21:21:07 +00:00
Erick Tryzelaar e62248a79c Use LLVM's new DESTDIR-less PROJ_* variables.
llvm-svn: 97744
2010-03-04 20:57:19 +00:00
Douglas Gregor bb26a92239 Update Clang C++ status, with a more project-centric focus.
llvm-svn: 95455
2010-02-05 23:51:14 +00:00
Owen Anderson 029eb7d243 Clarify the documentation of ext_vector, and add a small example. Hopefully
this will alleviate some confusion about the existence of this feature.

Comments/improvements welcome.

llvm-svn: 94645
2010-01-27 01:22:36 +00:00
John McCall 98757030a4 Document the extensions I made to the diagnostics-formatting system yesterday.
llvm-svn: 93439
2010-01-14 19:12:17 +00:00
Douglas Gregor b89b99f1f2 Fix pasto in __has_feature(cxx_lambdas) docs
llvm-svn: 93320
2010-01-13 16:27:49 +00:00
Alexis Hunt af4e28d897 Add a bunch more feature-checking macros for C++0x features. Some of these are
disabled with the intent that users can start with them now and not have to change
a thing to have them work when we implement the features.

llvm-svn: 93312
2010-01-13 08:31:49 +00:00
Nuno Lopes 641fdce235 revert part of my last patch, and mark only the c++ global new operator as noalias. the rest will be infered by llvm optz
llvm-svn: 91600
2009-12-17 10:15:49 +00:00
Nuno Lopes ff22e5e8cb document -fno-assume-sane-operator-new, per Chris request.
please review for English grammar mistakes

llvm-svn: 91599
2009-12-17 10:00:52 +00:00
Mike Stump 64a03454c6 Refine a little. WIP.
llvm-svn: 91502
2009-12-16 03:25:12 +00:00
Mike Stump 11ba8d989c Add some documentation for recent checkins. WIP.
llvm-svn: 91500
2009-12-16 03:18:14 +00:00
Mike Stump 68943780a6 Add documentation for recently added code. WIP.
llvm-svn: 91367
2009-12-14 23:53:10 +00:00
Daniel Dunbar 0910cf54ac Update a few more docs references to clang-cc.
llvm-svn: 91178
2009-12-11 23:17:03 +00:00
Zhongxing Xu 9ad590125c brace completion.
llvm-svn: 90833
2009-12-08 05:05:26 +00:00
Ted Kremenek 72de23e8ab Fix typo.
llvm-svn: 90390
2009-12-03 02:06:43 +00:00
Ted Kremenek 71d7463797 Add __has_feature(cxx_exceptions) and __has_feature(cxx_rtti) to table of contents.
llvm-svn: 90389
2009-12-03 02:05:57 +00:00
Ted Kremenek 51540f9377 Add section on what language features __has_feature() supports for querying if they are enabled.
llvm-svn: 90388
2009-12-03 02:04:01 +00:00
Douglas Gregor 44ab140001 Fix a broken link
llvm-svn: 86545
2009-11-09 15:15:41 +00:00
John Thompson ac0b098d4d Added __has_include and __has_include_next.
llvm-svn: 85834
2009-11-02 22:28:12 +00:00
Rafael Espindola bb85c2644a Document -nobuiltininc
llvm-svn: 85188
2009-10-27 00:29:40 +00:00
Chris Lattner bf20638966 Implement __builtin_unreachable(), a GCC 4.5 extension.
llvm-svn: 82433
2009-09-21 03:09:59 +00:00
Chris Lattner c15c252007 grammaro
llvm-svn: 82070
2009-09-16 18:56:12 +00:00
Mike Stump b4bed3a497 Collapse more clang version numbers down into fewer places.
llvm-svn: 81983
2009-09-16 01:26:05 +00:00
Mike Stump e18856dad1 Back to 1.1 we go.
llvm-svn: 81944
2009-09-15 23:04:22 +00:00
Chris Lattner f8122966a9 clang tracks multiple levels of macro expansion
llvm-svn: 81811
2009-09-14 23:44:08 +00:00
Daniel Dunbar 5e2de9fe00 Some formatting tweaks to clang(1)
llvm-svn: 81668
2009-09-13 02:21:55 +00:00
Eli Friedman a3063cec14 As far as I know, there aren't any warning differences between -std=gnu99 and
-std=c99 modes, etc.

llvm-svn: 80133
2009-08-26 20:18:00 +00:00
Daniel Dunbar f944cc5347 Fix a few typos.
llvm-svn: 78991
2009-08-14 04:43:04 +00:00
Chris Lattner 7bad9ef8ae document the diagnostics pragmas, patch by Louis Gerbarg!
llvm-svn: 75432
2009-07-12 21:22:10 +00:00
Argyrios Kyrtzidis bff082aec9 Add documentation for the Index library to clang's web page.
llvm-svn: 75222
2009-07-10 03:41:36 +00:00
Douglas Gregor 0086a5a3bb Introduce the notion of "Relocatable" precompiled headers, which are built
with a particular system root directory and can be used with a different
system root directory when the headers it depends on have been installed.
Relocatable precompiled headers rewrite the file names of the headers used
when generating the PCH file into the corresponding file names of the 
headers available when using the PCH file.

Addresses <rdar://problem/7001604>.

llvm-svn: 74885
2009-07-07 00:12:59 +00:00
Nick Lewycky be42c11118 Fix "for all intensive purposes" to "for all intents and purposes".
llvm-svn: 73323
2009-06-14 04:08:08 +00:00
Chris Lattner 084776d08b fix typo
llvm-svn: 73304
2009-06-13 20:35:58 +00:00
Chris Lattner 60ac6b9dce a couple minor tweaks
llvm-svn: 73296
2009-06-13 18:11:10 +00:00
Chris Lattner b6f77af532 implement and document a new __has_feature and __has_builtin magic
builtin preprocessor macro.  This appears to work with two caveats:
1) builtins are registered in -E mode, and 2) target-specific builtins
are unconditionally registered even if they aren't supported by the
target (e.g. SSE4 builtin when only SSE1 is enabled).

llvm-svn: 73289
2009-06-13 07:13:28 +00:00
Eli Friedman 7983cb1dbe Minor formatting tweak.
llvm-svn: 73251
2009-06-12 20:11:05 +00:00
Eli Friedman 0f7d4455fe Fix a minor formatting mistake.
llvm-svn: 73250
2009-06-12 20:08:48 +00:00
Eli Friedman 4e20479de8 Some updates to the gcc extension sections of the users manual.
llvm-svn: 73249
2009-06-12 20:04:25 +00:00
Eli Friedman 4d38aeb372 Minor documentation update about Microsoft extensions.
llvm-svn: 73052
2009-06-08 06:21:03 +00:00
Eli Friedman 3a80fc3808 Say a bit about various architectures in the users manual.
llvm-svn: 73044
2009-06-08 05:12:39 +00:00
Daniel Dunbar 15b86228cf Mention unsupported GCC duplicate-definition-with-inline extension.
Also, link users manual from the main web page.

llvm-svn: 72878
2009-06-04 18:37:52 +00:00
Douglas Gregor b48c6eb794 PTH -> PCH in the user manual
llvm-svn: 72815
2009-06-03 22:37:00 +00:00
Douglas Gregor 277d4d355b HTML tweak to get the PCH internals documentation to display correctly
llvm-svn: 72813
2009-06-03 21:57:43 +00:00
Douglas Gregor 22c7d31a3f Finished the PCH design and implementation documentation
llvm-svn: 72812
2009-06-03 21:55:35 +00:00
Douglas Gregor 6c5d61ca09 Document the integration points for precompiled headers
llvm-svn: 72809
2009-06-03 21:41:31 +00:00
Douglas Gregor a3bd665e17 Add a table of contents to the PCH design document
llvm-svn: 72791
2009-06-03 18:35:59 +00:00
Douglas Gregor 8662d1ffd0 Document the PCH representation of statements and expressions
llvm-svn: 72790
2009-06-03 18:26:16 +00:00
Douglas Gregor 02a109f6d7 Fill in some gaps in the precompiled headers documentation
llvm-svn: 72779
2009-06-03 16:06:22 +00:00
Douglas Gregor f727bb18d9 More PCH documentation
llvm-svn: 72743
2009-06-02 22:08:07 +00:00
Eli Friedman 164da6618e A couple minor corrections to the "GCC extensions not implemented yet"
section of the users manual.

llvm-svn: 72725
2009-06-02 08:21:31 +00:00
Eli Friedman b5f33c1634 A few tweaks to the "Differences between various standard modes"
section.

llvm-svn: 72501
2009-05-27 23:02:57 +00:00
Douglas Gregor 95fc37fd8f Start documenting precompiled headers
llvm-svn: 72146
2009-05-20 00:16:32 +00:00
Daniel Dunbar f7a24e176c Several fixes to the clang man page.
- -emit-llvm isn't a stage selection option.

 - Document -O4 and -flto.

 - -ObjC++ and -ObjC apply to all inputs, not subsequent ones.

 - Some versions of pod2man aren't happy about the comment after =over=?

 - Some minor grammar fixes.

llvm-svn: 72044
2009-05-18 21:34:46 +00:00
Eli Friedman c3dcdd0980 A few minor updates to the user manual.
llvm-svn: 71964
2009-05-16 23:17:30 +00:00
Daniel Dunbar ffe4e63b40 Note that clang follows the MSVC definition for #pragma pack.
llvm-svn: 71725
2009-05-13 21:40:49 +00:00
Daniel Dunbar 98d7164ab0 Tweak wording
llvm-svn: 71611
2009-05-13 00:23:53 +00:00
Daniel Dunbar e83b560e06 Note a few more unsupported language extensions.
llvm-svn: 71607
2009-05-12 23:12:07 +00:00
Chris Lattner 32efff659c wrap up a version of the man page that is minimally helpful, but somewhat complete.
llvm-svn: 71524
2009-05-12 00:47:40 +00:00
Chris Lattner 66c64f9ba4 add some more content.
llvm-svn: 71518
2009-05-12 00:01:32 +00:00
Chris Lattner e3c3f40404 pull a bunch of options out of clang-cc.cpp. This doesn't include
options that the driver swizzles.

llvm-svn: 71487
2009-05-11 22:45:37 +00:00
Daniel Dunbar 16af476c42 Document environment variables we handle, and don't mention -pipe (it
isn't yet supported... lazy developers).

llvm-svn: 71109
2009-05-06 19:18:09 +00:00
Chris Lattner 164ac10f82 More content.
llvm-svn: 71088
2009-05-06 17:22:08 +00:00
Chris Lattner 2080787636 add some content
llvm-svn: 71059
2009-05-06 02:47:51 +00:00
Daniel Dunbar 94fa27171b Override some pod2man defaults.
llvm-svn: 71045
2009-05-06 00:10:37 +00:00
Chris Lattner b732397343 257 -> FS
llvm-svn: 70996
2009-05-05 18:54:47 +00:00
Daniel Dunbar 6d0eecad6c Make install target actually work, dependencies FTW.
llvm-svn: 70599
2009-05-01 23:34:58 +00:00
Daniel Dunbar c52d01f8d9 Add ONLY_MAN_DOCS variable to only install the man page, not the html
and ps documentation.

llvm-svn: 70589
2009-05-01 23:11:42 +00:00
Daniel Dunbar c1b1658751 Add incredibly bare bones docs/tools.
- Mirroring LLVM's docs/CommandGuide, a place to put .pod files which
   are used to generate man/html/etc documentation for tools provided
   as part of clang.

llvm-svn: 70355
2009-04-29 01:00:32 +00:00
Eli Friedman 5406f5430b Add some text to the user manual describing the current state of C
support in clang.

llvm-svn: 70314
2009-04-28 18:48:34 +00:00
Ted Kremenek dab465d820 Grammar fix.
llvm-svn: 69682
2009-04-21 17:14:24 +00:00
Chris Lattner a80b2bdb25 document new form of -fdiagnostics-print-source-range-in
llvm-svn: 69663
2009-04-21 05:35:32 +00:00
Zhongxing Xu 2f8198f82a update the doc.
llvm-svn: 69587
2009-04-20 10:09:10 +00:00
Chris Lattner 396b9c380a more stuff.
llvm-svn: 69576
2009-04-20 06:26:18 +00:00
Chris Lattner 5ed5e9a612 add a bunch of diagnostics options, add one example warning group.
llvm-svn: 69573
2009-04-20 06:00:23 +00:00
Chris Lattner 6840825137 slurp some content from the PTH doc into the user's doc.
llvm-svn: 69569
2009-04-20 04:37:38 +00:00
Chris Lattner f9d8913b80 initial skeleton of a user's manual.
llvm-svn: 69568
2009-04-20 04:23:09 +00:00
Daniel Dunbar 2355ea2625 Some more tweaks to driver documentation.
llvm-svn: 69504
2009-04-19 02:33:12 +00:00
Chris Lattner ecbcb3ab0b minor typographical fixes
llvm-svn: 69502
2009-04-19 02:02:45 +00:00
Chris Lattner 7de6456593 mention the non-standard builtin macros we support.
llvm-svn: 68935
2009-04-13 02:45:46 +00:00
Zhongxing Xu a720c8b1c9 update analyzer doc.
llvm-svn: 68773
2009-04-10 06:52:49 +00:00