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* Add #pragma clang attributeAlex Lorenz2017-04-181-36/+31
| | | | | | | | | | | | | | | | | 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 Lorenz2017-04-181-31/+36
| | | | | | | Some tests fail on the Windows buildbots. I will have to investigate more. This commit reverts r300539, r300540 and r300542. llvm-svn: 300543
* Add #pragma clang attributeAlex Lorenz2017-04-181-36/+31
| | | | | | | | | | | | | | 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
* Revert temporarily D29877 "Warn about unused static file scope function ↵Vassil Vassilev2017-04-111-14/+0
| | | | | | | | | | | | | template declarations." We need to address cases (breaking libc++) such as template <class _Up> static int __test(...); template<typename _Tp> auto v = __test<_Tp>(0); llvm-svn: 299956
* Warn about unused static file scope function template declarations.Vassil Vassilev2017-04-111-0/+14
| | | | | | Reviewed by Richard Smith (D29877)! llvm-svn: 299930
* [NFC, Scoped Enum] Convert Sema::ExpressionEvaluationContext into a scoped EnumFaisal Vali2017-04-011-2/+3
| | | | | | | | - 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
* Remove all uses of std::mem_fun and std::bind1st removed in C++17.Richard Smith2017-03-231-1/+3
| | | | llvm-svn: 298657
* [Sema] Add variable captured by a block to the enclosing lambda'sAkira Hatanaka2017-03-011-3/+3
| | | | | | | | | | | | | | | potential capture list. Fix Sema::getCurLambda() to return the innermost lambda scope when there is a block enclosed in the lambda. Previously, the method would return a nullptr in such cases, which would prevent a variable captured by the enclosed block to be added to the lambda scope's potential capture list. rdar://problem/28412462 Differential Revision: https://reviews.llvm.org/D25556 llvm-svn: 296584
* Rename ActiveTemplateInstantiation to CodeSynthesisContext in preparation forRichard Smith2017-02-231-2/+2
| | | | | | | using it for other kinds of context (where we currently produce context notes in a highly ad-hoc manner). llvm-svn: 295919
* Factor out function to determine whether we're performing a templateRichard Smith2017-02-211-9/+4
| | | | | | | | | instantiation. In preparation for converting the template stack to a more general context stack (so we can include context notes for other kinds of context). llvm-svn: 295686
* [OpenCL] Correct ndrange_t implementationAnastasia Stulova2017-02-161-1/+0
| | | | | | | | | | | | | | | Removed ndrange_t as Clang builtin type and added as a struct type in the OpenCL header. Use type name to do the Sema checking in enqueue_kernel and modify IR generation accordingly. Review: D28058 Patch by Dmitry Borisenkov! llvm-svn: 295311
* Recommit r289979 [OpenCL] Allow disabling types and declarations associated ↵Yaxun Liu2016-12-181-21/+134
| | | | | | | | with extensions Fixed undefined behavior due to cast integer to bool in initializer list. llvm-svn: 290056
* Revert r289979 due to regressionsYaxun Liu2016-12-161-134/+21
| | | | llvm-svn: 289991
* [OpenCL] Allow disabling types and declarations associated with extensionsYaxun Liu2016-12-161-21/+134
| | | | | | | | | | | | | | | | | | Added a map to associate types and declarations with extensions. Refactored existing diagnostic for disabled types associated with extensions and extended it to declarations for generic situation. Fixed some bugs for types associated with extensions. Allow users to use pragma to declare types and functions for supported extensions, e.g. #pragma OPENCL EXTENSION the_new_extension_name : begin // declare types and functions associated with the extension here #pragma OPENCL EXTENSION the_new_extension_name : end Differential Revision: https://reviews.llvm.org/D21698 llvm-svn: 289979
* DR1213: element access on an array xvalue or prvalue produces an xvalue. In theRichard Smith2016-12-051-0/+12
| | | | | | | | | | | | | | latter case, a temporary array object is materialized, and can be lifetime-extended by binding a reference to the member access. Likewise, in an array-to-pointer decay, an rvalue array is materialized before being converted into a pointer. This caused IR generation to stop treating file-scope array compound literals as having static storage duration in some cases in C++; that has been rectified by modeling such a compound literal as an lvalue. This also improves clang's compatibility with GCC for those cases. llvm-svn: 288654
* [MS] Mangle a unique ID into all MS inline asm labelsReid Kleckner2016-11-281-1/+0
| | | | | | | | | | | | This solves PR23715 in a way that is compatible with LTO. MSVC supports jumping to source-level labels and between inline asm blocks, but we don't. Also revert the old solution, r255201, which was to mark these calls as noduplicate. llvm-svn: 288059
* Fix for PR28523: unexpected compilation error.Alexey Bataev2016-11-111-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clang emits error message for the following code: ``` template <class F> void parallel_loop(F &&f) { f(0); } int main() { int x; parallel_loop([&](auto y) { { x = y; }; }); } ``` $ clang++ --std=gnu++14 clang_test.cc -o clang_test clang_test.cc:9:7: error: reference to local variable 'x' declared in enclosing function 'main' x = y; ^ clang_test.cc:2:48: note: in instantiation of function template specialization 'main()::(anonymous class)::operator()<int>' requested here template <class F> void parallel_loop(F &&f) { f(0); } ^ clang_test.cc:6:3: note: in instantiation of function template specialization 'parallel_loop<(lambda at clang_test.cc:6:17)>' requested here parallel_loop([&](auto y) { ^ clang_test.cc:5:7: note: 'x' declared here int x; ^ 1 error generated. Patch fixes this issue. llvm-svn: 286584
* Sema: do not warn about unused const vars if main file is a headerErik Verbruggen2016-10-281-2/+5
| | | | | | | | | If we pass a header to libclang, e.g. because it's open in an editor in an IDE, warnings about unused const vars are not useful: other files that include the header might use those constants. So when -x *-header is passed as command-line option, suppress this warning. llvm-svn: 285386
* Do not reset TUScope when we are in incremental processing mode.Vassil Vassilev2016-10-171-2/+4
| | | | | | | | Patch by Axel Naumann! Reviewed by Richard Smith and me. llvm-svn: 284372
* [Sema] Use unique_ptr instead of raw pointers in the late-parsed templates map.Justin Lebar2016-10-101-1/+0
| | | | | | | | | | | | | | | Summary: This is possible now that MapVector supports move-only values. Depends on D25404. Reviewers: timshen Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D25405 llvm-svn: 283766
* [coroutines] Switch to using std::experimental namespace per P0057R5Gor Nishanov2016-10-041-2/+2
| | | | | | | | | | | | | | Summary: Look for coroutine_traits and friends in std::experimental namespace. Patch (mostly) by EricWF. Reviewers: cfe-commits, EricWF, rsmith Subscribers: majnemer, mehdi_amini Differential Revision: https://reviews.llvm.org/D25068 llvm-svn: 283170
* P0217R3: template instantiation support for decomposition declarations.Richard Smith2016-08-121-2/+1
| | | | llvm-svn: 278458
* P0217R3: Perform semantic checks and initialization for the bindings in aRichard Smith2016-08-111-1/+4
| | | | | | | decomposition declaration for arrays, aggregate-like structs, tuple-like types, and (as an extension) for complex and vector types. llvm-svn: 278435
* [NFC] Header cleanupMehdi Amini2016-07-181-3/+1
| | | | | | | | | | 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
* Fix unused variable warning after r273754.James Y Knight2016-06-251-0/+1
| | | | llvm-svn: 273783
* Implement C++17 P0386R2, inline variables. (The 'inline' specifier gives aRichard Smith2016-06-251-5/+12
| | | | | | | variable weak discardable linkage and partially-ordered initialization, and is implied for constexpr static data members.) llvm-svn: 273754
* Re-commit "[Temporary] Add an ExprWithCleanups for each C++ ↵Tim Shen2016-06-211-2/+3
| | | | | | | | | | MaterializeTemporaryExpr." Since D21243 fixes relative clang-tidy tests. This reverts commit a71d9fbd41e99def9159af2b01ef6509394eaeed. llvm-svn: 273312
* Revert "[Temporary] Add an ExprWithCleanups for each C++ ↵Tim Shen2016-06-091-3/+2
| | | | | | | | | MaterializeTemporaryExpr." This reverts r272296, since there are clang-tidy failures that appear to be caused by this change. llvm-svn: 272310
* [Temporary] Add an ExprWithCleanups for each C++ MaterializeTemporaryExpr.Tim Shen2016-06-091-2/+3
| | | | | | | | | | | These ExprWithCleanups are added for holding a RunCleanupsScope not for destructor calls; rather, they are for lifetime marks. This requires ExprWithCleanups to keep a bit to indicate whether it have cleanups with side effects (e.g. dtor calls). Differential Revision: http://reviews.llvm.org/D20498 llvm-svn: 272296
* Produce better pretty stack traces from crashes in template instantiation: addRichard Smith2016-05-261-4/+4
| | | | | | | | pretty stack trace entries for all cases where we instantiate the definition of something, and include the fully-qualified name with template arguments in the name of the instantiated entity. llvm-svn: 270904
* Make Sema::getPrintingPolicy less ridiculously expensive. This used to performRichard Smith2016-05-191-4/+5
| | | | | | | | | | an identifier table lookup, *and* copy the LangOptions (including various std::vector<std::string>s). Twice. We call this function once each time we start parsing a declaration specifier sequence, and once for each call to Sema::Diag. This reduces the compile time for a sample .c file from the linux kernel by 20%. llvm-svn: 270009
* [OPENMP] Pass scalar firstprivate vars by value.Alexey Bataev2016-05-171-1/+2
| | | | | | | | For better performance and to unify code with offloading part we pass scalar firstprivate values by value, instead of by reference. It will remove some extra copying operations. llvm-svn: 269751
* [OpenCL] Add supported OpenCL extensions to target info.Yaxun Liu2016-05-161-1/+7
| | | | | | | | | | Add supported OpenCL extensions to target info. It serves as default values to save the users of the burden setting each supported extensions and optional core features in command line. Re-commit after fixing build error due to missing override attribute. Differential Revision: http://reviews.llvm.org/D19484 llvm-svn: 269670
* Revert "[OpenCL] Add supported OpenCL extensions to target info."Yaxun Liu2016-05-131-7/+1
| | | | | | | | | Revert r269431 due to build failure caused by warning msg: llvm/tools/clang/lib/Basic/Targets.cpp:2090:9: error: 'setSupportedOpenCLOpts' overrides a member function but is not marked 'override' [-Werror,-Winconsistent-missing-override] void setSupportedOpenCLOpts() { llvm-svn: 269435
* [OpenCL] Add supported OpenCL extensions to target info.Yaxun Liu2016-05-131-1/+7
| | | | | | | | Add supported OpenCL extensions to target info. It serves as default values to save the users of the burden setting each supported extensions and optional core features in command line. Differential Revision: http://reviews.llvm.org/D19484 llvm-svn: 269431
* Method Pool in modules: we make sure that if a module contains an entry forManman Ren2016-04-291-0/+1
| | | | | | | | | | | | | | | a selector, the entry should be complete, containing everything introduced by that module and all modules it imports. Before writing out the method pool of a module, we sync up the out of date selectors by pulling in methods for the selectors, from all modules it imports. In ReadMethodPool, after pulling in the method pool entry for module A, this lets us skip the modules that module A imports. rdar://problem/25900131 llvm-svn: 268091
* [MS] Make #pragma pack use PragmaStack<> class.Denis Zobnin2016-04-291-4/+4
| | | | | | | | | | | | | | | Make implementation of #pragma pack consistent with other "stack" pragmas. Use PragmaStack<> class instead of old representation of internal stack. Don't change compiler's behavior. TODO: 1. Introduce diagnostics on popping named slots from pragma stacks. Reviewer: rnk Differential revision: http://reviews.llvm.org/D19727 llvm-svn: 268085
* Recommit "[MS] Improved implementation of stack pragmas (vtordisp, *_seg)"Denis Zobnin2016-04-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | Slightly updated version, double-checked build and tests. Improve implementation of MS pragmas that use stack + compatibility fixes. This patch: 1. Changes implementation of #pragma vtordisp to use PragmaStack class that other stack pragmas use; 2. Fixes "#pragma vtordisp()" behavior - it shouldn't affect the stack; 3. Supports "save-restore" of pragma stacks on enter / exit a C++ method body, as MSVC does. TODO: 1. Change implementation of #pragma pack to use the same approach; 2. Introduce diagnostics on popping named stack slots, as MSVC does. Reviewers: rnk, thakis Differential revision: http://reviews.llvm.org/D19361 llvm-svn: 268029
* Revert "[MS] Improved implementation of MS stack pragmas (vtordisp, *_seg)"Denis Zobnin2016-04-281-1/+1
| | | | | | This reverts commit r267866. llvm-svn: 267870
* [MS] Improved implementation of MS stack pragmas (vtordisp, *_seg)Denis Zobnin2016-04-281-1/+1
| | | | | | | | | | | Rework implementation of several MS pragmas that use internal stack: vtordisp, {bss|code|const|data}_seg. This patch: 1. Makes #pragma vtordisp use PragmaStack class as *_seg pragmas do; 2. Fixes "#pragma vtordisp()" behavior: it shouldn't affect stack; 3. Saves/restores the stacks on enter/exit a C++ method body. llvm-svn: 267866
* [OpenCL] Complete image types support.Alexey Bader2016-04-081-14/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I. Current implementation of images is not conformant to spec in the following points: 1. It makes no distinction with respect to access qualifiers and therefore allows to use images with different access type interchangeably. The following code would compile just fine: void write_image(write_only image2d_t img); kernel void foo(read_only image2d_t img) { write_image(img); } // Accepted code which is disallowed according to s6.13.14. 2. It discards access qualifier on generated code, which leads to generated code for the above example: call void @write_image(%opencl.image2d_t* %img); In OpenCL2.0 however we can have different calls into write_image with read_only and wite_only images. Also generally following compiler steps have no easy way to take different path depending on the image access: linking to the right implementation of image types, performing IR opts and backend codegen differently. 3. Image types are language keywords and can't be redeclared s6.1.9, which can happen currently as they are just typedef names. 4. Default access qualifier read_only is to be added if not provided explicitly. II. This patch corrects the above points as follows: 1. All images are encapsulated into a separate .def file that is inserted in different points where image handling is required. This avoid a lot of code repetition as all images are handled the same way in the code with no distinction of their exact type. 2. The Cartesian product of image types and image access qualifiers is added to the builtin types. This simplifies a lot handling of access type mismatch as no operations are allowed by default on distinct Builtin types. Also spec intended access qualifier as special type qualifier that are combined with an image type to form a distinct type (see statement above - images can't be created w/o access qualifiers). 3. Improves testing of images in Clang. Author: Anastasia Stulova Reviewers: bader, mgrang. Subscribers: pxli168, pekka.jaaskelainen, yaxunl. Differential Revision: http://reviews.llvm.org/D17821 llvm-svn: 265783
* Store list of undefined-but-used objects in a deterministic order to fixRichard Smith2016-03-251-27/+12
| | | | | | | | non-deterministic diagnostics (and non-deterministic PCH files). Check these when building a module rather than serializing it; it's not reasonable for a module's use to be satisfied by a definition in the user of the module. llvm-svn: 264466
* Fix predefine for __NSConstantString struct typeBen Langmuir2016-02-041-4/+5
| | | | | | | | | | | | | | | | | Per review feedback the name was wrong and it can be used outside Objective-C. Unfortunately, making the internal struct visible broke some ASTMatchers tests that assumed that the first record decl would be from user code, rather than a builtin type. I'm worried that this will also affect users' code. So this patch adds a typedef to wrap the internal struct and only makes the typedef visible to namelookup. This is sufficient to allow the ASTReader to merge the decls we need without making the struct itself visible. rdar://problem/24425801 llvm-svn: 259734
* Reapply r259624, it is likely not the commit causing the bot failures.Quentin Colombet2016-02-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Original message: Make CF constant string decl visible to name lookup to fix module errors The return type of the __builtin___*StringMakeConstantString functions is a pointer to a struct, so we need that struct to be visible to name lookup so that we will correctly merge multiple declarations of that type if they come from different modules. Incidentally, to make this visible to name lookup we need to rename the type to __NSConstantString, since the real NSConstantString is an Objective-C interface type. This shouldn't affect anyone outside the compiler since users of the constant string builtins cast the result immediately to CFStringRef. Since this struct type is otherwise implicitly created by the AST context and cannot access namelookup, we make this a predefined type and initialize it in Sema. Note: this issue of builtins that refer to types not visible to name lookup technically also affects other builtins (e.g. objc_msgSendSuper), but in all other cases the builtin is a library builtin and the issue goes away if you include the library that defines the types it uses, unlike for these constant string builtins. rdar://problem/24425801 llvm-svn: 259721
* Revert r259624 - Make CF constant string decl visible to name lookup to fix ↵Quentin Colombet2016-02-031-4/+0
| | | | | | | | | module errors. This breaks some internal bots in stage2: clang seg fault. Looking with Ben to see what is going on. llvm-svn: 259715
* Make CF constant string decl visible to name lookup to fix module errorsBen Langmuir2016-02-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | The return type of the __builtin___*StringMakeConstantString functions is a pointer to a struct, so we need that struct to be visible to name lookup so that we will correctly merge multiple declarations of that type if they come from different modules. Incidentally, to make this visible to name lookup we need to rename the type to __NSConstantString, since the real NSConstantString is an Objective-C interface type. This shouldn't affect anyone outside the compiler since users of the constant string builtins cast the result immediately to CFStringRef. Since this struct type is otherwise implicitly created by the AST context and cannot access namelookup, we make this a predefined type and initialize it in Sema. Note: this issue of builtins that refer to types not visible to name lookup technically also affects other builtins (e.g. objc_msgSendSuper), but in all other cases the builtin is a library builtin and the issue goes away if you include the library that defines the types it uses, unlike for these constant string builtins. rdar://problem/24425801 llvm-svn: 259624
* [Sema] Make nullness warnings appear in C++.George Burgess IV2015-12-141-12/+15
| | | | | | | | | | | | | | | | | | | Given the following code: int *_Nullable ptr; int *_Nonnull nn = ptr; ...In C, clang will warn you about `nn = ptr`, because you're assigning a nonnull pointer to a nullable pointer. In C++, clang issues no such warning. This patch helps ensure that clang doesn't ever miss an opportunity to complain about C++ code. N.B. Though this patch has a differential revision link, the actual review took place over email. Differential Revision: http://reviews.llvm.org/D14938 llvm-svn: 255556
* [Sema] Use getLangOpts in Sema instead of Preprocessor. Call getTargetInfo ↵Craig Topper2015-11-151-7/+6
| | | | | | on the AST context instead of Preprocessor. NFC llvm-svn: 253175
* Use Sema::getLocForEndOfToken instead of Preprocessor::getLocForEndOfToken. NFCCraig Topper2015-11-151-1/+1
| | | | llvm-svn: 253155
* Refine r251469 to give better (and more localizable) diagnosticsJohn McCall2015-10-281-2/+2
| | | | | | for all the reasons that ARC makes things implicitly unavailable. llvm-svn: 251496
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