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* Revert r263687 for ubsan bot failure.Manman Ren2016-03-172-14/+3
| | | | llvm-svn: 263752
* Revert "For MS ABI, emit dllexport friend functions defined inline in class"Reid Kleckner2016-03-171-2/+2
| | | | | | | | | This reverts commit r263738. This appears to cause a failure in CXX/temp/temp.decls/temp.friend/p1.cpp llvm-svn: 263740
* For MS ABI, emit dllexport friend functions defined inline in classReid Kleckner2016-03-171-2/+2
| | | | | | | | | | | | Summary: ...as that is apparently what MSVC does Reviewers: rnk Patch by Stephan Bergmann Differential Revision: http://reviews.llvm.org/D15267 llvm-svn: 263738
* [OPENMP 4.5] Allow to use private data members in 'copyprivate' clause.Alexey Bataev2016-03-171-43/+31
| | | | | | | | OpenMP 4.5 allows privatization of non-static data members in non-static member functions. This patch adds support of private data members in 'copyprivate' clauses. llvm-svn: 263706
* [OPENMP 4.0] Use 'declare reduction' constructs in 'reduction' clauses.Alexey Bataev2016-03-172-181/+388
| | | | | | | | OpenMP 4.0 allows to define custom reduction operations using '#pragma omp declare reduction' construct. Patch allows to use this custom defined reduction operations in 'reduction' clauses. llvm-svn: 263701
* Add an optional named argument (replacement = "xxx") to AvailabilityAttr.Manman Ren2016-03-172-3/+14
| | | | | | | | | | This commit adds a named argument to AvailabilityAttr, while r263652 adds an optional string argument to __attribute__((deprecated)). This enables the compiler to provide Fix-Its for deprecated declarations. rdar://20588929 llvm-svn: 263687
* Add an optional string argument to DeprecatedAttr for Fix-It.Manman Ren2016-03-161-4/+36
| | | | | | | | We only add this to __attribute__((deprecated)). Differential Revision: http://reviews.llvm.org/D17865 llvm-svn: 263652
* Add attributes for preserve_mostcc/preserve_allcc calling conventions to the ↵Roman Levenstein2016-03-162-2/+23
| | | | | | | | | | | | | | | C/C++ front-end Till now, preserve_mostcc/preserve_allcc calling convention attributes were only available at the LLVM IR level. This patch adds attributes for preserve_mostcc/preserve_allcc calling conventions to the C/C++ front-end. The code was mostly written by Juergen Ributzka. I just added support for the AArch64 target and tests. Differential Revision: http://reviews.llvm.org/D18025 llvm-svn: 263647
* Fix destructor definition of invalid classesOlivier Goffart2016-03-161-8/+10
| | | | | | | | | | | | The declaration of the destructor of an invalid class was not properly marked as noexcept. As a result, the definition of the same destructor, which was properly implicitly marked as noexcept, would not match the definition. This would cause the definition CXXDestructorDecl to be matked as invalid and omited from the AST. Differential Revision: http://reviews.llvm.org/D17988 llvm-svn: 263639
* Avoid using LookupResult's implicit copy ctor and assignment operator to ↵Marina Yatsina2016-03-161-11/+9
| | | | | | | | | | | | | avoid warnings The purpose of this patch is to keep the same functionality without using LookupResult's implicit copy ctor and assignment operator, because they cause warnings when -Wdeprecated is passed. This patch is meant to help the following review: http://reviews.llvm.org/D18123. The functionality is covered by the tests in my original commit (255890) The test case in this patch was added to test a bug caught in the review of the first version of this fix. Differential Revision: http://reviews.llvm.org/D18175 llvm-svn: 263630
* Move the fixit for -Wformat-security to a note.Bob Wilson2016-03-151-5/+6
| | | | | | | | r263299 added a fixit for the -Wformat-security warning, but that runs into complications with our guideline that error recovery should be done as-if the fixit had been applied. Putting the fixit on a note avoids that. llvm-svn: 263584
* Add fix-it for format-security warnings.Bob Wilson2016-03-111-9/+21
| | | | llvm-svn: 263299
* Allow sizeof(UnrelatedClass::field) in C++11 class template methodsReid Kleckner2016-03-111-3/+16
| | | | | | | | | | | | | | | | | This feature works outside of templates by forming a DeclRefExpr to a FieldDecl instead of a MemberExpr, which requires a base object in addition to the FieldDecl. Previously, while building up the template AST before instantiation, we formed a CXXDependentScopeMemberExpr, which always instantiates to a MemberExpr. Now, in unevaluated contexts we form a DependentScopeDeclRefExpr, which is a more flexible node that can instantiate to either a MemberExpr or a DeclRefExpr depending on lookup results. Fixes PR26893. llvm-svn: 263279
* [OpenMP] NFC fix compilation warning about unused variableDmitry Polukhin2016-03-111-2/+1
| | | | | | lib/Sema/SemaOpenMP.cpp:9243:13: warning: variable ‘IsRightMostExpression’ set but not used llvm-svn: 263202
* Add TreatUnavailableAsInvalid for the verification-only mode in InitListChecker.Manman Ren2016-03-103-33/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Given the following test case: typedef struct { const char *name; id field; } Test9; extern void doSomething(Test9 arg); void test9() { Test9 foo2 = {0, 0}; doSomething(foo2); } With a release compiler, we don't emit any message and silently ignore the variable "foo2". With an assert compiler, we get an assertion failure. The root cause ————————————— Back in r140457 we gave InitListChecker a verification-only mode, and will use CanUseDecl instead of DiagnoseUseOfDecl for verification-only mode. These two functions handle unavailable issues differently: In Sema::CanUseDecl, we say the decl is invalid when the Decl is unavailable and the current context is available. In Sema::DiagnoseUseOfDecl, we say the decl is usable by ignoring the return code of DiagnoseAvailabilityOfDecl So with an assert build, we will hit an assertion in diagnoseListInit assert(DiagnoseInitList.HadError() && "Inconsistent init list check result."); The fix ------------------- If we follow what is implemented in CanUseDecl and treat Decls with unavailable issues as invalid, the variable decl of “foo2” will be marked as invalid. Since unavailable checking is processed in delayed diagnostics (r197627), we will silently ignore the diagnostics when we find out that the variable decl is invalid. We add a flag "TreatUnavailableAsInvalid" for the verification-only mode. For overload resolution, we want to say decls with unavailable issues are invalid; but for everything else, we should say they are valid and emit diagnostics. Depending on the value of the flag, CanUseDecl can return different values for unavailable issues. rdar://23557300 Differential Revision: http://reviews.llvm.org/D15314 llvm-svn: 263149
* Fix false positives for for-loop-analysis warningSteven Wu2016-03-101-0/+12
| | | | | | | | | | | | | | | Summary: For PseudoObjectExpr, the DeclMatcher need to search only all the semantics but also need to search pass OpaqueValueExpr for all potential uses for the Decl. Reviewers: thakis, rtrieu, rjmccall, doug.gregor Subscribers: xazax.hun, rjmccall, doug.gregor, cfe-commits Differential Revision: http://reviews.llvm.org/D17627 llvm-svn: 263087
* Implement support for [[maybe_unused]] in C++1z that is based off existing ↵Aaron Ballman2016-03-093-6/+33
| | | | | | support for unused, and treat it as an extension pre-C++1z. This also means extending the existing unused attribute so that it can be placed on an enum and enumerator, in addition to the other subjects. llvm-svn: 263025
* [OpenMP] Add support for multidimensional array sections in map clause SEMA.Samuel Antao2016-03-091-23/+144
| | | | | | | | | | | | Summary: In some cases it can be proved statically that multidimensional array section refer to contiguous storage and can therefore be allowed in a map clause. This patch adds support for those cases in SEMA. Reviewers: hfinkel, carlo.bertolli, arpith-jacob, kkwli0, ABataev Subscribers: cfe-commits, fraggamuffin, caomhin Differential Revision: http://reviews.llvm.org/D17547 llvm-svn: 263019
* [GCC] PR23529 Sema part of attrbute abi_tag supportDmitry Polukhin2016-03-092-0/+57
| | | | | | | | | | | | | | | | | Original patch by Stefan Bühler http://reviews.llvm.org/D12834 Difference between original and this one: - fixed all comments in original code review - added more tests, all new diagnostics now covered by tests - moved abi_tag on re-declaration checks to Sema::mergeDeclAttributes where they actually may work as designed - clang-format + other stylistic changes Mangle part will be sent for review as a separate patch. Differential Revision: http://reviews.llvm.org/D17567 llvm-svn: 263015
* [OPENMP 4.5] Codegen for data members in 'linear' clause.Alexey Bataev2016-03-091-6/+43
| | | | | | | OpenMP 4.5 allows to use data members in private clauses. Patch adds codegen support for 'linear' clause. llvm-svn: 263002
* Fix crash in access check for aggregate initialization of base classes. It'sRichard Smith2016-03-081-1/+5
| | | | | | | not obvious how to access-check these, so pick a conservative rule until we get feedback from CWG. llvm-svn: 262966
* P0017R1: In C++1z, an aggregate class can have (public non-virtual) base ↵Richard Smith2016-03-081-25/+106
| | | | | | classes; these are initialized as if they were data members. llvm-svn: 262963
* Sema: Methods in unavailable classes are unavailableDuncan P. N. Exon Smith2016-03-081-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Similar to the template cases in r262050, when a C++ method in an unavailable struct/class calls unavailable API, don't diagnose an error. I.e., this case was failing: void foo() __attribute__((unavailable)); struct __attribute__((unavailable)) A { void bar() { foo(); } }; Since A is unavailable, A::bar is allowed to call foo. However, we were emitting a diagnostic here. This commit checks up the context chain from A::bar, in a manner inspired by SemaDeclAttr.cpp:isDeclUnavailable. I expected to find other related issues but failed to trigger them: - I wondered if DeclBase::getAvailability should check for `TemplateDecl` instead of `FunctionTemplateDecl`, but I couldn't find a way to trigger this. I left behind a few extra tests to make sure we don't regress. - I wondered if Sema::isFunctionConsideredUnavailable should be symmetric, checking up the context chain of the callee (this commit only checks up the context chain of the caller). However, I couldn't think of a testcase that didn't require first referencing the unavailable type; this, we already diagnose. rdar://problem/25030656 llvm-svn: 262921
* Sema: Treat 'strict' availability flag like unavailableDuncan P. N. Exon Smith2016-03-081-9/+1
| | | | | | | | | | | | | | | | | | | | | | This is a follow-up to r261512, which made the 'strict' availability attribute flag behave like 'unavailable'. However, that fix was insufficient. The following case would (erroneously) error when the deployment target was older than 10.9: struct __attribute__((availability(macosx,strict,introduced=10.9))) A; __attribute__((availability(macosx,strict,introduced=10.9))) void f(A*); The use of A* in the argument list for f is valid here, since f and A have the same availability. The fix is to return AR_Unavailable from DeclBase::getAvailability instead of AR_NotYetIntroduced. This also reverts the special handling added in r261163, instead relying on the well-tested logic for AR_Unavailable. rdar://problem/23791325 llvm-svn: 262915
* P0188R1: add support for standard [[fallthrough]] attribute. This is almostRichard Smith2016-03-084-20/+61
| | | | | | | | | | | | | | exactly the same as clang's existing [[clang::fallthrough]] attribute, which has been updated to have the same semantics. The one significant difference is that [[fallthrough]] is ill-formed if it's not used immediately before a switch label (even when -Wimplicit-fallthrough is disabled). To support that, we now build a CFG of any function that uses a '[[fallthrough]];' statement to check. In passing, fix some bugs with our support for statement attributes -- in particular, diagnose their use on declarations, rather than asserting. llvm-svn: 262881
* Implement support for [[nodiscard]] in C++1z that is based off existing ↵Aaron Ballman2016-03-072-6/+12
| | | | | | support for warn_unused_result, and treat it as an extension pre-C++1z. This also means extending the existing warn_unused_result attribute so that it can be placed on an enum as well as a class. llvm-svn: 262872
* Add null check to diagnostic path for lambda captures.Richard Trieu2016-03-051-2/+3
| | | | | | | | Previously, the failed capture of a variable in nested lambdas may crash when the lambda pointer is null. Only give the note if a location can be retreived from the lambda pointer. llvm-svn: 262765
* PR5941 - improve diagnostic for * vs & confusion when choosing overload ↵David Blaikie2016-03-041-1/+4
| | | | | | | | | | candidate with a parameter of incomplete (ref or pointer) type Reviewers: dblaikie Differential Revision: http://reviews.llvm.org/D16949 llvm-svn: 262752
* Implement P0036R0: remove support for empty unary folds of +, *, |, &.Richard Smith2016-03-041-15/+0
| | | | llvm-svn: 262747
* [SemaExprCXX] Avoid calling isInSystemHeader for invalid source locationsPavel Labath2016-03-041-1/+2
| | | | | | | | | | | | | | | | | | | Summary: While diagnosing a CXXNewExpr warning, we were calling isInSystemHeader(), which expect to be called with a valid source location. This causes an assertion failure if the location is unknown. A quick grep shows it's not without precedent to guard calls to the function with a "Loc.isValid()". This fixes a test failure in LLDB, which always creates object with invalid source locations as it does not (always) have access to the source. Reviewers: nlewycky Subscribers: lldb-commits, cfe-commits Differential Revision: http://reviews.llvm.org/D17847 llvm-svn: 262700
* [OPENMP 4.0] Codegen for 'declare reduction' construct.Alexey Bataev2016-03-041-0/+1
| | | | | | | Emit function for 'combiner' part of 'declare reduction' construct and 'initialilzer' part, if any. llvm-svn: 262699
* [OpenCL] Refine pipe builtin supportXiuli Pan2016-03-041-44/+52
| | | | | | | | | | | | | | Summary: Refine the type builtin support as the request with http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20160201/148637.html Reviewers: pekka.jaaskelainen, Anastasia, yaxunl Subscribers: rsmith, cfe-commits Differential Revision: http://reviews.llvm.org/D16876 llvm-svn: 262692
* [OpenCL] Improve diagnostics of address spaces for variables in functionAnastasia Stulova2016-03-031-20/+12
| | | | | | | | | - Prevent local variables to be declared in global AS - Diagnose AS of local variables with an extern storage class as if they would be in a program scope Review: http://reviews.llvm.org/D17345 llvm-svn: 262641
* [OpenCL] Apply missing restrictions for Blocks in OpenCL v2.0Anastasia Stulova2016-03-032-24/+65
| | | | | | | | | | | | | | Applying the following restrictions for block types in OpenCL (v2.0 s6.12.5): - __block storage class is disallowed - every block declaration must be const qualified and initialized - a block can't be used as a return type of a function - a blocks can't be used to declare a structure or union field - extern speficier is disallowed Corrected image and sampler types diagnostics with struct and unions. Review: http://reviews.llvm.org/D16928 llvm-svn: 262616
* Semantic analysis for the swiftcall calling convention.John McCall2016-03-033-1/+200
| | | | | | | I've tried to keep the infrastructure behind parameter ABI treatments fairly general. llvm-svn: 262587
* [OPENMP 4.0] Initial support for 'omp declare reduction' construct.Alexey Bataev2016-03-036-2/+332
| | | | | | | | | | | | | | | | | Add parsing, sema analysis and serialization/deserialization for 'declare reduction' construct. User-defined reductions are defined as #pragma omp declare reduction( reduction-identifier : typename-list : combiner ) [initializer ( initializer-expr )] These custom reductions may be used in 'reduction' clauses of OpenMP constructs. The combiner specifies how partial results can be combined into a single value. The combiner can use the special variable identifiers omp_in and omp_out that are of the type of the variables being reduced with this reduction-identifier. Each of them will denote one of the values to be combined before executing the combiner. It is assumed that the special omp_out identifier will refer to the storage that holds the resulting combined value after executing the combiner. As the initializer-expr value of a user-defined reduction is not known a priori the initializer-clause can be used to specify one. Then the contents of the initializer-clause will be used as the initializer for private copies of reduction list items where the omp_priv identifier will refer to the storage to be initialized. The special identifier omp_orig can also appear in the initializer-clause and it will refer to the storage of the original variable to be reduced. Differential Revision: http://reviews.llvm.org/D11182 llvm-svn: 262582
* [OPENMP 4.5] Initial support for data members in 'linear' clause.Alexey Bataev2016-03-031-67/+48
| | | | | | | | OpenMP 4.5 allows to privatize data members of current class in member functions. Patch adds initial support for privatization of data members in 'linear' clause, no codegen support. llvm-svn: 262578
* Improve some infrastructure for extended parameter infos andJohn McCall2016-03-033-24/+81
| | | | | | | fix a bug with the instantiation of ns_consumed parameter attributes in ARC. llvm-svn: 262551
* Serialize `#pragma detect_mismatch`.Nico Weber2016-03-022-3/+11
| | | | | | | This is like r262493, but for pragma detect_mismatch instead of pragma comment. The two pragmas have similar behavior, so use the same approach for both. llvm-svn: 262506
* Serialize `#pragma comment`.Nico Weber2016-03-022-17/+11
| | | | | | | | | | | | | | `#pragma comment` was handled by Sema calling a function on ASTConsumer, and CodeGen then implementing this function and writing things to its output. Instead, introduce a PragmaCommentDecl AST node and hang one off the TranslationUnitDecl for every `#pragma comment` line, and then use the regular serialization machinery. (Since PragmaCommentDecl has codegen relevance, it's eagerly deserialized.) http://reviews.llvm.org/D17799 llvm-svn: 262493
* [OPENMP 4.5] Codegen for data members in 'reduction' clause.Alexey Bataev2016-03-022-19/+60
| | | | | | | | OpenMP 4.5 allows to privatize non-static data members of current class in non-static member functions. Patch supports codegen for non-static data members in 'reduction' clauses. llvm-svn: 262460
* Fix the template instantiation of ExtParameterInfos; tests to follow.John McCall2016-03-014-19/+69
| | | | llvm-svn: 262289
* Generalize the consumed-parameter array on FunctionProtoTypeJohn McCall2016-03-012-15/+23
| | | | | | | | | to allow arbitrary data to be associated with a parameter. Also, fix a bug where we apparently haven't been serializing this information for the last N years. llvm-svn: 262278
* [OPENMP 4.5] Initial support for data members in 'reduction' clauses.Alexey Bataev2016-02-291-125/+161
| | | | | | | | OpenMP 4.5 allows to privatize non-static data members of current class in non-static member functions. Patch adds initial parsing/semantic analysis for data members support in 'reduction' clauses. llvm-svn: 262199
* [clang-cl] /EHc should not effect functions with explicit exception ↵David Majnemer2016-02-291-2/+5
| | | | | | | | | | specifications Functions with an explicit exception specification have their behavior dictated by the specification. The additional /EHc behavior only comes into play if no exception specification is given. llvm-svn: 262198
* [modules] Prefer more complete array types.Vassil Vassilev2016-02-282-34/+61
| | | | | | | | | | | | | | If we import a module that has a complete array type and one that has an incomplete array type, the declaration found by name lookup might be the one with the incomplete type, possibly resulting in rejects-valid. Now, the name lookup prefers decls with a complete array types. Also, diagnose cases when the redecl chain has array bound, different from the merge candidate. Reviewed by Richard Smith. llvm-svn: 262189
* Fix bug in using shadow decl checking: a using shadow decl should not conflictRichard Smith2016-02-271-0/+6
| | | | | | | | | | | | | | | with a prior UsingDecl -- those should not even really be found by the lookup here, except that we use the same lookup results for two different checks, and the other check needs them. This happens to work in *almost all* cases, because either the lookup results list the UsingDecl first (and the NonTag result gets replaced by something else) or because the problematic declaration is a function (which causes us to use different logic to detect conflicts). This can also be triggered from a state only reachable through modules (where the name lookup results can contain multiple UsingDecls in the same scope). llvm-svn: 262105
* [dllexport] Sort out emission order of delayed exported classesReid Kleckner2016-02-263-0/+20
| | | | | | | | | | | | | | | | Relands r260194 with a fix. If we have a template that transitions from an extern template to an explicitly instantiated dllexport template, we would add that class to the delayed exported class list without flushing it. For explicit instantiations, we can just flush the list of delayed classes immediately. We don't have to worry about the bug fixed in r260194 in this case because explicit instantiations can only occur at file and namespace scope. Fixes PR26490. llvm-svn: 262056
* Reduce false positives in printf/scanf format checkerAndy Gibbs2016-02-261-34/+145
| | | | | | | | | | | | | | | Summary: The printf/scanf format checker is a little over-zealous in handling the conditional operator. This patch reduces work by not checking code-paths that are never used and reduces false positives regarding uncovered arguments, for example in the code fragment: printf(minimal ? "%i\n" : "%i: %s\n", code, msg); Reviewers: rtrieu Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D15636 llvm-svn: 262025
* [OpenCL] Refine OpenCLImageAccessAttr to OpenCLAccessAttrXiuli Pan2016-02-263-11/+53
| | | | | | | | | | | | | | | Summary: OpenCL access qualifiers are now not only used for image types, refine it to avoid misleading, Add semacheck for OpenCL access qualifier as well as test caees. Reviewers: pekka.jaaskelainen, Anastasia, aaron.ballman Subscribers: aaron.ballman, cfe-commits Differential Revision: http://reviews.llvm.org/D16040 llvm-svn: 261961
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