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* Add -f[no-]double-square-bracket-attributes as new driver options to control ↵Aaron Ballman2017-10-151-28/+50
| | | | | | use of [[]] attributes in all language modes. This is the initial implementation of WG14 N2165, which is a proposal to add [[]] attributes to C2x, but also allows you to enable these attributes in C++98, or disable them in C++11 or later. llvm-svn: 315856
* Add '\n' in ClangDataCollectorsEmitterKonstantin Zhuravlyov2017-09-081-1/+1
| | | | | | Differential Revision: https://reviews.llvm.org/D37599 llvm-svn: 312795
* [AST] Add TableGen for StmtDataCollectorsJohannes Altmanninger2017-09-064-0/+27
| | | | | | | | | | | | | | Summary: This adds an option "-gen-clang-data-collectors" to the Clang TableGen that is used to generate StmtDataCollectors.inc. Reviewers: arphaman, teemperor! Subscribers: mgorny, cfe-commits Differential Revision: https://reviews.llvm.org/D37383 llvm-svn: 312634
* Do not look through pack expansions when looking for unexpanded parameter packs.Richard Smith2017-08-151-0/+21
| | | | | | | Fixes a selection of rejects-valids when pack-expanding a lambda that itself contains a pack expansion. llvm-svn: 310972
* This reverts r305820 (ARMv.2-A FP16 vector intrinsics) because it showsSjoerd Meijer2017-07-061-5/+1
| | | | | | | | problems in testing, see comments in D34161 for some more details. A fix is in progres in D35011, but a revert seems better now as the fix will probably take some more time to land. llvm-svn: 307277
* [AArch64] ADD ARMv.2-A FP16 vector intrinsicsAbderrazek Zaafrani2017-06-201-1/+5
| | | | | | Differential Revision: https://reviews.llvm.org/D34161 llvm-svn: 305820
* Revert "[AArch64] Add ARMv8.2-A FP16 vefctor intrinsics"Vedant Kumar2017-06-021-5/+1
| | | | | | | | | | | | This reverts commit r304493. It breaks all the Darwin bots: http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-incremental_check/37168 Failure: Failing Tests (2): Clang :: CodeGen/aarch64-v8.2a-neon-intrinsics.c Clang :: CodeGen/arm_neon_intrinsics.c llvm-svn: 304509
* [AArch64] Add ARMv8.2-A FP16 vefctor intrinsicsAbderrazek Zaafrani2017-06-011-1/+5
| | | | llvm-svn: 304493
* [TableGen] Clang changes to support Record::getValueAsString and ↵Craig Topper2017-05-314-31/+39
| | | | | | | | | | getValueAsListOfStrings returning StringRef instead of std::string This is the clang version of D33710. Differential Revision: https://reviews.llvm.org/D33711 llvm-svn: 304326
* Enhance the 'diagnose_if' attribute so that we can apply it for ObjC methods ↵Argyrios Kyrtzidis2017-05-241-1/+5
| | | | | | | | and properties as well This is an initial commit to allow using it with constant expressions, a follow-up commit will enable full support for it in ObjC methods. llvm-svn: 303712
* utils: Silence -Wpedantic warningSaleem Abdulrasool2017-05-011-2/+2
| | | | | | | | | | llvm/tools/clang/utils/TableGen/ClangAttrEmitter.cpp:1673:67: warning: default argument specified for lambda parameter [-Wpedantic] const Record *Constraint = nullptr) { ^~~~~~~ Found by gcc 5.4.0. llvm-svn: 301783
* Add #pragma clang attribute support to the external_source_symbol attributeAlex Lorenz2017-04-191-24/+113
| | | | | | | | | | | | | | | | | | | Prior to this commit the external_source_symbol attribute wasn't supported by #pragma clang attribute for the following two reasons: - The Named attribute subject hasn't been supported by TableGen. - There was no way to specify a subject match rule for #pragma clang attribute that could operate on a set of attribute subjects (e.g. the ones that derive from NamedDecl). This commit fixes the two issues and thus adds external_source_symbol support to #pragma clang attribute. rdar://31169028 Differential Revision: https://reviews.llvm.org/D32176 llvm-svn: 300712
* Add #pragma clang attributeAlex Lorenz2017-04-183-12/+470
| | | | | | | | | | | | | | | | | This is a recommit of r300539 that was reverted in r300543 due to test failures. The original commit message is displayed below: The new '#pragma clang attribute' directive can be used to apply attributes to multiple declarations. An attribute must satisfy the following conditions to be supported by the pragma: - It must have a subject list that's defined in the TableGen file. - It must be documented. - It must not be late parsed. - It must have a GNU/C++11 spelling. Differential Revision: https://reviews.llvm.org/D30009 llvm-svn: 300556
* Revert r300539 - Add #pragma clang attributeAlex Lorenz2017-04-183-470/+12
| | | | | | | Some tests fail on the Windows buildbots. I will have to investigate more. This commit reverts r300539, r300540 and r300542. llvm-svn: 300543
* Fix one more 'not all control paths return a value' MSVC warningAlex Lorenz2017-04-181-1/+1
| | | | | | The warning was caused by r300539. llvm-svn: 300542
* [TableGen] Fix MSVC warning that occurs in TableGen generated functionAlex Lorenz2017-04-181-1/+3
| | | | | | This should fix the Windows buildbot failure that happened after r300539. llvm-svn: 300540
* Add #pragma clang attributeAlex Lorenz2017-04-183-12/+468
| | | | | | | | | | | | | | The new '#pragma clang attribute' directive can be used to apply attributes to multiple declarations. An attribute must satisfy the following conditions to be supported by the pragma: - It must have a subject list that's defined in the TableGen file. - It must be documented. - It must not be late parsed. - It must have a GNU/C++11 spelling. Differential Revision: https://reviews.llvm.org/D30009 llvm-svn: 300539
* [NFC, Scoped Enum] Convert Sema::ExpressionEvaluationContext into a scoped EnumFaisal Vali2017-04-011-2/+2
| | | | | | | | - also replace direct equality checks against the ConstantEvaluated enumerator with isConstantEvaluted(), in anticipation of adding finer granularity to the various ConstantEvaluated contexts and reinstating certain restrictions on where lambda expressions can occur in C++17. - update the clang tablegen backend that uses these Enumerators, and add the relevant scope where needed. llvm-svn: 299316
* Correct class-template deprecation behavior-REDUXErich Keane2017-03-231-16/+28
| | | | | | | | | | | | | | | | | | Correct class-template deprecation behavior Based on the comment in the test, and my reading of the standard, a deprecated warning should be issued in the following case: template<typename T> [[deprecated]] class Foo{}; Foo<int> f; This was not the case, because the ClassTemplateSpecializationDecl creation did not also copy the deprecated attribute. Note: I did NOT audit the complete set of attributes to see WHICH ones should be copied, so instead I simply copy ONLY the deprecated attribute. Previous DiffRev: https://reviews.llvm.org/D27486, was reverted. This patch fixes the issues brought up here by the reverter: https://reviews.llvm.org/rL298410 Differential Revision: https://reviews.llvm.org/D31245 llvm-svn: 298634
* Revert "Correct class-template deprecation behavior"Martin Bohme2017-03-221-28/+16
| | | | | | | This reverts commit r298410 (which produces incorrect warnings, see comments on https://reviews.llvm.org/rL298410). llvm-svn: 298504
* Correct class-template deprecation behaviorErich Keane2017-03-211-16/+28
| | | | | | | | | | | | | Based on the comment in the test, and my reading of the standard, a deprecated warning should be issued in the following case: template<typename T> [[deprecated]] class Foo{}; Foo<int> f; This was not the case, because the ClassTemplateSpecializationDecl creation did not also copy the deprecated attribute. Note: I did NOT audit the complete set of attributes to see WHICH ones should be copied, so instead I simply copy ONLY the deprecated attribute. Differential Revision: https://reviews.llvm.org/D27486 llvm-svn: 298410
* Improve workaround for Sphinx's lack of support for command line options ↵Richard Smith2017-01-271-14/+47
| | | | | | containing '+', '.' etc. to be more stable as the set of options changes. llvm-svn: 293252
* [docs] Add TableGen-based generator for command line argument documentation,Richard Smith2017-01-244-2/+368
| | | | | | | and generate documentation for all (non-hidden) options supported by the 'clang' driver. llvm-svn: 292968
* Switch TableGen to emit calls to ASTRecordReader for AttrPCHRead.David L. Jones2017-01-241-19/+19
| | | | | | | | | | | | | | | Summary: This patch changes TableGen-generated code in AttrPCHRead to call functions on ASTRecordReader, instead of passing separate parameters to ASTReader. This is a follow-up to r290217. Reviewers: rsmith Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D28007 llvm-svn: 292868
* [TableGen] Only normalize the spelling of GNU-style attributes.Justin Lebar2017-01-051-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: When Sema looks up an attribute name, it strips off leading and trailing "__" if the attribute is GNU-style. That is, __attribute__((foo)) and __attribute__((__foo__)) are equivalent. This is only true for GNU-style attributes. In particular, __declspec(__foo__) is not equivalent to __declspec(foo), and Sema respects this difference. This patch fixes TableGen to match Sema's behavior. The spelling 'GNU<"__foo__">' should be normalized to 'GNU<"foo">', but 'Declspec<"__foo__">' should not be changed. This is necessary to make CUDA compilation work on Windows, because e.g. the __device__ attribute is spelled __declspec(__device__). Attr.td does not contain any Declspec spellings that start or end with "__", so this change should not affect any other attributes. Reviewers: rnk Subscribers: cfe-commits, tra Differential Revision: https://reviews.llvm.org/D28318 llvm-svn: 291129
* Adapt to llvm/TableGen DagInit changes.Matthias Braun2016-12-051-15/+20
| | | | llvm-svn: 288645
* TableGen: Adapt to llvm r288612Matthias Braun2016-12-042-4/+4
| | | | llvm-svn: 288614
* [TableGen] Ignore fake args for parsing-related arg counts.George Burgess IV2016-12-011-0/+4
| | | | | | | | | | | | | | | | | | We should complain about the following: ``` void foo() __attribute__((unavailable("a", "b"))); ``` Instead, we currently just ignore "b". (...We also end up ignoring "a", because we assume elsewhere that this attribute can only have 1 or 0 args.) This happens because `unavailable` has a fake enum arg, and `AttributeList::{getMinArgs,getMaxArgs}` include fake args in their counts. llvm-svn: 288388
* [TableGen] Minor clean-ups. NFC.George Burgess IV2016-12-011-52/+42
| | | | | | | | | Primarily: try to use DenseSet<StringRef> instead of std::set<std::string>, and use pretty range algos where we can. Small sizes were arbitrarily chosen. llvm-svn: 288297
* Fix some Clang-tidy and Include What You Use warnings; other minor fixes (NFC).Eugene Zelenko2016-11-291-19/+44
| | | | | | This preparation to remove SetVector.h dependency on SmallSet.h. llvm-svn: 288213
* Use noexcept instead of LLVM_NOEXCEPT now that all compilers support itReid Kleckner2016-10-191-3/+2
| | | | llvm-svn: 284667
* Turn cl::values() (for enum) from a vararg function to using C++ variadic ↵Mehdi Amini2016-10-081-2/+1
| | | | | | | | | | | | | | | template The core of the change is supposed to be NFC, however it also fixes what I believe was an undefined behavior when calling: va_start(ValueArgs, Desc); with Desc being a StringRef. Differential Revision: https://reviews.llvm.org/D25342 llvm-svn: 283671
* [docs] Order diagnostic cross-references alphabetically rather than based onRichard Smith2016-09-141-0/+1
| | | | | | order in the .td file. llvm-svn: 281434
* Update DiagnosticsReference and fix emitter to emit -Wpedantic diagnostics ↵Richard Smith2016-09-141-3/+12
| | | | | | and groups in a deterministic order. llvm-svn: 281433
* Fix a FIXME about MSVC 2013 in the diagnostic doc generation codeReid Kleckner2016-09-131-5/+7
| | | | | | Ultimately it boiled down to adding a move constructor. llvm-svn: 281408
* Work around MSVC 2013's inability to default move special members.Richard Smith2016-09-131-3/+3
| | | | llvm-svn: 281382
* Work around a GCC 4.7-specific issue: due to implementing older rules forRichard Smith2016-09-131-0/+5
| | | | | | | | | | | implicit declarations of move operations, GCC 4.7 would find that SelectPiece has neither a move constructor nor a copy constructor. The copy constructor was (correctly) deleted because the class has a member of move-only type, and the move constructor was (incorrectly, per current C++ rules) not provided because the class has a copy-only base class (in turn because it explicitly declares a destructor). llvm-svn: 281363
* Add virtual destructor (necessary due to the switch to shared_ptr).Richard Smith2016-09-121-0/+1
| | | | llvm-svn: 281198
* Attempt #3 to placate MSVC.Richard Smith2016-09-121-4/+6
| | | | llvm-svn: 281197
* Attempt #2 to placate MSVCRichard Smith2016-09-121-0/+2
| | | | llvm-svn: 281195
* Attempt to placate MSVC.Richard Smith2016-09-121-1/+3
| | | | llvm-svn: 281194
* Add a mode to clang-tblgen to generate reference documentation for warning andRichard Smith2016-09-123-1/+432
| | | | | | | | remark flags. For now I'm checking in a copy of the built documentation, but we can replace this with a placeholder (as we do for the attributes reference documentation) once we enable building this server-side. llvm-svn: 281192
* [tablegen] Check that an optional IdentifierArgument of an attribute isAkira Hatanaka2016-09-101-1/+7
| | | | | | | | | | | | provided before trying to print it. This fixes a segfault that occurs when function printPretty generated by tablegen tries to print an optional argument of attribute objc_bridge_related. rdar://problem/28155469 llvm-svn: 281132
* Add plumbing for new attribute type "Microsoft".Nico Weber2016-09-031-6/+22
| | | | | | | | This is for attributes in []-delimited lists preceding a class, like e.g. `[uuid("...")] class Foo {};` Not used by anything yet, so no behavior change. Part of https://reviews.llvm.org/D23895 llvm-svn: 280575
* Implement __attribute__((require_constant_initialization)) for safe static ↵Eric Fiselier2016-09-021-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | initialization. Summary: This attribute specifies expectations about the initialization of static and thread local variables. Specifically that the variable has a [constant initializer](http://en.cppreference.com/w/cpp/language/constant_initialization) according to the rules of [basic.start.static]. Failure to meet this expectation will result in an error. Static objects with constant initializers avoid hard-to-find bugs caused by the indeterminate order of dynamic initialization. They can also be safely used by other static constructors across translation units. This attribute acts as a compile time assertion that the requirements for constant initialization have been met. Since these requirements change between dialects and have subtle pitfalls it's important to fail fast instead of silently falling back on dynamic initialization. ```c++ // -std=c++14 #define SAFE_STATIC __attribute__((require_constant_initialization)) static struct T { constexpr T(int) {} ~T(); }; SAFE_STATIC T x = {42}; // OK. SAFE_STATIC T y = 42; // error: variable does not have a constant initializer // copy initialization is not a constant expression on a non-literal type. ``` This attribute can only be applied to objects with static or thread-local storage duration. Reviewers: majnemer, rsmith, aaron.ballman Subscribers: jroelofs, cfe-commits Differential Revision: https://reviews.llvm.org/D23385 llvm-svn: 280525
* Revert r280516 since it contained accidental changes.Eric Fiselier2016-09-021-3/+1
| | | | llvm-svn: 280521
* Implement __attribute__((require_constant_initialization)) for safe static ↵Eric Fiselier2016-09-021-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | initialization. Summary: This attribute specifies expectations about the initialization of static and thread local variables. Specifically that the variable has a [constant initializer](http://en.cppreference.com/w/cpp/language/constant_initialization) according to the rules of [basic.start.static]. Failure to meet this expectation will result in an error. Static objects with constant initializers avoid hard-to-find bugs caused by the indeterminate order of dynamic initialization. They can also be safely used by other static constructors across translation units. This attribute acts as a compile time assertion that the requirements for constant initialization have been met. Since these requirements change between dialects and have subtle pitfalls it's important to fail fast instead of silently falling back on dynamic initialization. ```c++ // -std=c++14 #define SAFE_STATIC __attribute__((require_constant_initialization)) static struct T { constexpr T(int) {} ~T(); }; SAFE_STATIC T x = {42}; // OK. SAFE_STATIC T y = 42; // error: variable does not have a constant initializer // copy initialization is not a constant expression on a non-literal type. ``` This attribute can only be applied to objects with static or thread-local storage duration. Reviewers: majnemer, rsmith, aaron.ballman Subscribers: jroelofs, cfe-commits Differential Revision: https://reviews.llvm.org/D23385 llvm-svn: 280516
* [clang-tblgen] Remove unused #include (NFC)Vedant Kumar2016-08-051-1/+0
| | | | llvm-svn: 277885
* [NFC] Header cleanupMehdi Amini2016-07-182-6/+0
| | | | | | | | | | Summary: Removed unused headers, replaced some headers with forward class declarations Patch by: Eugene <claprix@yandex.ru> Differential Revision: https://reviews.llvm.org/D20100 llvm-svn: 275882
* Sema: support __declspec(dll*) on ObjC interfacesSaleem Abdulrasool2016-07-151-0/+9
| | | | | | | | | | | Extend the __declspec(dll*) attribute to cover ObjC interfaces. This was requested by Microsoft for their ObjC support. Cover both import and export. This only adds the semantic analysis portion of the support, code-generation still remains outstanding. Add some basic initial documentation on the attributes that were previously empty. Tweak the previous tests to use the relative expected-warnings to make the tests easier to read. llvm-svn: 275610
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