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* [CUDA] Make std::min/max work when compiling in C++14 mode with a C++11 stdlib.Justin Lebar2018-05-171-18/+29
| | | | | | | | | | Reviewers: rsmith Subscribers: sanjoy, cfe-commits, tra Differential Revision: https://reviews.llvm.org/D46993 llvm-svn: 332619
* Fix __uuidof handling on non-type template parameter in C++17Nico Weber2018-05-171-1/+1
| | | | | | | | | | | | | | | Clang used to pass the base lvalue of a non-type template parameter to the template instantiation phase when the base part is __uuidof and it's running in C++17 mode. However, that drops its LValuePath, and unintentionally transforms &__uuidof(...) to __uuidof(...). This CL fixes that by passing whole expr. Fixes PR24986. https://reviews.llvm.org/D46820?id=146557 Patch from Taiju Tsuiki <tzik@chromium.org>! llvm-svn: 332614
* Use dotted format of version tuple for availability diagnosticsJan Korous2018-05-173-10/+9
| | | | | | | | | | | | E. g. use "10.11" instead of "10_11". We are maintaining backward compatibility by parsing underscore-delimited version tuples but no longer keep track of the separator and using dot format for output. Differential Revision: https://reviews.llvm.org/D46747 rdar://problem/39845032 llvm-svn: 332598
* CodeGen: Fix invalid bitcast for lifetime.start/endYaxun Liu2018-05-175-34/+76
| | | | | | | | | | | | | | lifetime.start/end expects pointer argument in alloca address space. However in C++ a temporary variable is in default address space. This patch changes API CreateMemTemp and CreateTempAlloca to get the original alloca instruction and pass it lifetime.start/end. It only affects targets with non-zero alloca address space. Differential Revision: https://reviews.llvm.org/D45900 llvm-svn: 332593
* Add vfs::FileSystem::getRealPathEric Liu2018-05-172-16/+15
| | | | | | | | | | | | | | Summary: And change `FileManager::getCanonicalName` to use getRealPath. Reviewers: bkramer Reviewed By: bkramer Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D46942 llvm-svn: 332590
* [ASTImporter] Fix missing implict CXXRecordDeclGabor Marton2018-05-171-1/+1
| | | | | | | | | | | | | | Summary: Implicit CXXRecordDecl is not added to its DeclContext during import, but in the original AST it is. This patch fixes this. Reviewers: xazax.hun, a.sidorin, szepet Subscribers: rnkovacs, dkrupp, cfe-commits Differential Revision: https://reviews.llvm.org/D46958 llvm-svn: 332588
* [libclang] Allow skipping function bodies in preamble onlyIvan Donchevskii2018-05-171-3/+14
| | | | | | | | | | | | | | | | | | | Second attempt. Fix line endings and warning. As an addition to CXTranslationUnit_SkipFunctionBodies, provide the new option CXTranslationUnit_LimitSkipFunctionBodiesToPreamble, which constraints the skipping of functions bodies to the preamble only. Function bodies in the main file are not affected if this option is set. Skipping function bodies only in the preamble is what clangd already does and the introduced flag implements it for libclang clients. Patch by Nikolai Kosjar. Differential Revision: https://reviews.llvm.org/D45815 llvm-svn: 332587
* [Frontend] Avoid running plugins during code completion parseIvan Donchevskii2018-05-171-0/+4
| | | | | | | | | | | | | | | | | Second attempt. Proper line endings. The parsing that is done for code completion is a special case that will discard any generated diagnostics, so avoid running plugins for this case in the first place to avoid performance penalties due to the plugins. A scenario for this is for example libclang with extra plugins like tidy. Patch by Nikolai Kosjar Differential Revision: https://reviews.llvm.org/D46050 llvm-svn: 332586
* Revert https://reviews.llvm.org/D46050 and https://reviews.llvm.org/D45815Ivan Donchevskii2018-05-172-57/+42
| | | | | | | Windows line endings. Requires proper resubmission. llvm-svn: 332585
* [clang-format] Fix putting ObjC message arguments in one line for multiline ↵Jacek Olesiak2018-05-171-1/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | receiver Summary: Currently BreakBeforeParameter is set to true everytime message receiver spans multiple lines, e.g.: ``` [[object block:^{ return 42; }] aa:42 bb:42]; ``` will be formatted: ``` [[object block:^{ return 42; }] aa:42 bb:42]; ``` even though arguments could fit into one line. This change fixes this behavior. Test Plan: make -j12 FormatTests && tools/clang/unittests/Format/FormatTests Reviewers: benhamilton, djasper Reviewed By: benhamilton Subscribers: klimek, cfe-commits Differential Revision: https://reviews.llvm.org/D46879 llvm-svn: 332582
* [libclang] Allow skipping function bodies in preamble onlyIvan Donchevskii2018-05-171-36/+47
| | | | | | | | | | | | | | | | | As an addition to CXTranslationUnit_SkipFunctionBodies, provide the new option CXTranslationUnit_LimitSkipFunctionBodiesToPreamble, which constraints the skipping of functions bodies to the preamble only. Function bodies in the main file are not affected if this option is set. Skipping function bodies only in the preamble is what clangd already does and the introduced flag implements it for libclang clients. Patch by Nikolai Kosjar. Differential Revision: https://reviews.llvm.org/D45815 llvm-svn: 332578
* [analyzer] Extend ObjCAutoreleaseWriteChecker to catch block declarations ↵George Karpenkov2018-05-161-7/+12
| | | | | | | | with autoreleasing variables Differential Revision: https://reviews.llvm.org/D46984 llvm-svn: 332546
* [ASTMatchers] Introduce a blockDecl matcher for matching block declarationsGeorge Karpenkov2018-05-162-0/+3
| | | | | | | | Blocks can be matched just as well as functions or Objective-C methods. Differential Revision: https://reviews.llvm.org/D46980 llvm-svn: 332545
* [analyzer] Change the warning message for GCD antipattern checkerGeorge Karpenkov2018-05-161-2/+2
| | | | llvm-svn: 332544
* [Sema] Fix assertion when constructor is disabled with partially specialized ↵Volodymyr Sapsai2018-05-161-102/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | template. The added test case was triggering assertion > Assertion failed: (!SpecializedTemplate.is<SpecializedPartialSpecialization*>() && "Already set to a class template partial specialization!"), function setInstantiationOf, file clang/include/clang/AST/DeclTemplate.h, line 1825. It was happening with ClassTemplateSpecializationDecl `enable_if_not_same<int, int>`. Because this template is specialized for equal types not to have a definition, it wasn't instantiated and its specialization kind remained TSK_Undeclared. And because it was implicit instantiation, we didn't mark the decl as invalid. So when we try to find the best matching partial specialization the second time, we hit the assertion as partial specialization is already set. Fix by reusing stored partial specialization when available, instead of looking for the best match every time. rdar://problem/39524996 Reviewers: rsmith, arphaman Reviewed By: rsmith Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D46909 llvm-svn: 332509
* [Modules] Do not diagnose missing import in recovery mode if there isn't a ↵Bruno Cardoso Lopes2018-05-161-1/+1
| | | | | | | | | | | | | | | | | decl to lookup Clang often tries to create implicit module import for error recovery, which does a great job helping out with diagnostics. However, sometimes clang does not have enough information given that it's using an invalid context to move on. Be more strict in those cases to avoid crashes. We hit crash on invalids because of this but unfortunately there are no testcases and I couldn't manage to create one. The crashtrace however indicates pretty clear why it's happening. rdar://problem/39313933 llvm-svn: 332491
* [OPENMP] DO not crash on combined constructs in declare targetAlexey Bataev2018-05-161-1/+1
| | | | | | | | | | | functions. If the combined construct is specified in the declare target function and the device code is emitted, the compiler crashes because of the incorrectly chosen captured stmt. We should choose the innermost captured statement, not the outermost. llvm-svn: 332477
* Add support for __declspec(code_seg("segname"))Erich Keane2018-05-164-13/+146
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for __declspec(code_seg("segname")) This patch is built on the existing support for #pragma code_seg. The code_seg declspec is allowed on functions and classes. The attribute enables the placement of code into separate named segments, including compiler-generated members and template instantiations. For more information, please see the following: https://msdn.microsoft.com/en-us/library/dn636922.aspx A new CodeSeg attribute is used instead of adding a new spelling to the existing Section attribute since they don’t apply to the same Subjects. Section attributes are also added for the code_seg declspec since they are used for #pragma code_seg. No CodeSeg attributes are added to the AST. The patch is written to match with the Microsoft compiler’s behavior even where that behavior is a little complicated (see https://reviews.llvm.org/D22931, the Microsoft feedback page is no longer available since MS has removed the page). That code is in getImplicitSectionAttrFromClass routine. Diagnostics messages are added to match with the Microsoft compiler for code-seg attribute mismatches on base and derived classes and virtual overrides. Differential Revision: https://reviews.llvm.org/D43352 llvm-svn: 332470
* [Frontend] Avoid running plugins during code completion parseIvan Donchevskii2018-05-161-6/+10
| | | | | | | | | | | | | | | The parsing that is done for code completion is a special case that will discard any generated diagnostics, so avoid running plugins for this case in the first place to avoid performance penalties due to the plugins. A scenario for this is for example libclang with extra plugins like tidy. Patch by Nikolai Kosjar Differential Revision: https://reviews.llvm.org/D46050 llvm-svn: 332469
* [OPENMP, NVPTX] Add check for SPMD mode in orphaned parallel directives.Alexey Bataev2018-05-161-6/+34
| | | | | | | | If the orphaned directive is executed in SPMD mode, we need to emit the check for the SPMD mode and run the orphaned parallel directive in sequential mode. llvm-svn: 332467
* [analyzer] Improve the modeling of memset().Henry Wong2018-05-161-3/+99
| | | | | | | | | | | | Since there is no perfect way bind the non-zero value with the default binding, this patch only considers the case where buffer's offset is zero and the char value is 0. And according to the value for overwriting, decide how to update the string length. Reviewers: dcoughlin, NoQ, xazax.hun, a.sidorin, george.karpenkov Reviewed By: NoQ Differential Revision: https://reviews.llvm.org/D44934 llvm-svn: 332463
* [AST] Added a helper to extract a user-friendly text of a comment.Ilya Biryukov2018-05-162-117/+220
| | | | | | | | | | | | | | | | | | | | | | Summary: The helper is used in clangd for documentation shown in code completion and storing the docs in the symbols. See D45999. This patch reuses the code of the Doxygen comment lexer, disabling the bits that do command and html tag parsing. The new helper works on all comments, including non-doxygen comments. However, it does not understand or transform any doxygen directives, i.e. cannot extract brief text, etc. Reviewers: sammccall, hokein, ioeric Reviewed By: ioeric Subscribers: mgorny, cfe-commits Differential Revision: https://reviews.llvm.org/D46000 llvm-svn: 332458
* [CodeComplete] Expose helpers to get RawComment of completion result.Ilya Biryukov2018-05-161-30/+62
| | | | | | | | | | | | | | Summary: Used in clangd, see D45999. Reviewers: sammccall, hokein, ioeric, arphaman Reviewed By: sammccall Subscribers: arphaman, cfe-commits Differential Revision: https://reviews.llvm.org/D46001 llvm-svn: 332457
* Test commit access: remove superflous spacesGabor Marton2018-05-161-1/+1
| | | | llvm-svn: 332454
* clang-format: Allow optimizer to break template declaration.Francois Ferrand2018-05-163-5/+29
| | | | | | | | | | | | | | | | | | | Summary: Introduce `PenaltyBreakTemplateDeclaration` to control the penalty, and change `AlwaysBreakTemplateDeclarations` to an enum with 3 modes: * `No` for regular, penalty based, wrapping of template declaration * `MultiLine` for always wrapping before multi-line declarations (e.g. same as legacy behavior when `AlwaysBreakTemplateDeclarations=false`) * `Yes` for always wrapping (e.g. same as legacy behavior when `AlwaysBreakTemplateDeclarations=true`) Reviewers: krasimir, djasper, klimek Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D42684 llvm-svn: 332436
* clang-format: tweak formatting of variable initialization blocksFrancois Ferrand2018-05-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This patch changes the behavior of PenaltyBreakBeforeFirstCallParameter so that is does not apply after a brace, when Cpp11BracedListStyle is false. This way, variable initialization is wrapped more like an initializer than like a function call, which is more consistent with user expectations for this braced list style. With PenaltyBreakBeforeFirstCallParameter=200, this gives the following code: (with Cpp11BracedListStyle=false) Before : const std::unordered_map<std::string, int> Something::MyHashTable = { { "aaaaaaaaaaaaaaaaaaaaa", 0 }, { "bbbbbbbbbbbbbbbbbbbbb", 1 }, { "ccccccccccccccccccccc", 2 } }; After : const std::unordered_set<std::string> Something::MyUnorderedSet = { { "aaaaaaaaaaaaaaaaaaaaa", 0 }, { "bbbbbbbbbbbbbbbbbbbbb", 1 }, { "ccccccccccccccccccccc", 2 } }; Reviewers: krasimir, djasper, klimek Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D43290 llvm-svn: 332434
* [analyzer] Do not crash on callback for call_once passed by valueGeorge Karpenkov2018-05-161-10/+13
| | | | | | | | | https://bugs.llvm.org/show_bug.cgi?id=37312 rdar://40270582 Differential Revision: https://reviews.llvm.org/D46913 llvm-svn: 332422
* Revert commits r332160, r332164, r332236.Douglas Yung2018-05-161-10/+0
| | | | | | It was decided this is the wrong approach to fix this issue. llvm-svn: 332421
* [analyzer] Make plist-html diagnostic consumer produce multi-file reports.Artem Dergachev2018-05-161-1/+1
| | | | | | | | | | | Previously plist-html output produced multi-file HTML reports but only single-file Plist reports. Change plist-html output to produce multi-file Plist reports as well. Differential Revision: https://reviews.llvm.org/D46902 llvm-svn: 332417
* [Attr] Don't print implicit attributesJoel E. Denny2018-05-151-1/+1
| | | | | | | | | | | | Fixes bug reported at: http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180514/228390.html Reviewed by: aaron.ballman Differential Revision: https://reviews.llvm.org/D46894 llvm-svn: 332411
* Don't produce a redundant "auto type is incompatible with C++98" on every ↵Richard Smith2018-05-151-1/+3
| | | | | | | | lambda with no explicit return type. We already warned about the lambda, and we don't have a source location for the imagined "auto" anyway. llvm-svn: 332401
* Move helper classes into anonymous namespaces. NFCI.Benjamin Kramer2018-05-152-5/+6
| | | | llvm-svn: 332400
* Address post-commit review comments after r328731. NFC.Akira Hatanaka2018-05-155-96/+84
| | | | | | | | | | | | | | | | | | | | | | - Define a function (canPassInRegisters) that determines whether a record can be passed in registers based on language rules and target-specific ABI rules. - Set flag RecordDecl::ParamDestroyedInCallee to true in MSVC mode and remove ASTContext::isParamDestroyedInCallee, which is no longer needed. - Use the same type (unsigned) for RecordDecl's bit-field members. For more background, see the following discussions that took place on cfe-commits. http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180326/223498.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180402/223688.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180409/224754.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180423/226494.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180507/227647.html llvm-svn: 332397
* [OPENMP, NVPTX] Do not globalize variables with reference/pointer types.Alexey Bataev2018-05-151-20/+19
| | | | | | | | In generic data-sharing mode we do not need to globalize variables/parameters of reference/pointer types. They already are placed in the global memory. llvm-svn: 332380
* [clang] Update uses of DEBUG macro to LLVM_DEBUG.Nicola Zaghen2018-05-1515-88/+96
| | | | | | | | | | | | | The DEBUG() macro is very generic so it might clash with other projects. The renaming was done as follows: - git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g' - git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM Explicitly avoided changing the strings in the clang-format tests. Differential Revision: https://reviews.llvm.org/D44975 llvm-svn: 332350
* [Solaris] Only define _REENTRANT if -pthreadRainer Orth2018-05-151-1/+2
| | | | | | | | | | | | When looking at lib/Basic/Targets/OSTargets.h, I noticed that _REENTRANT is defined unconditionally on Solaris, unlike all other targets and what either Studio cc (only define it with -mt) or gcc (only define it with -pthread) do. This patch follows that lead. Differential Revision: https://reviews.llvm.org/D41241 llvm-svn: 332343
* [ASTImporter] Extend lookup logic in class templatesAleksei Sidorin2018-05-151-2/+8
| | | | | | | | | | | | | | During import of a class template, lookup may find a forward declaration and structural match falsely reports equivalency between a forward decl and a definition. The result is that some definitions are not imported if we had imported a forward decl previously. This patch gives a fix. Patch by Gabor Marton! Differential Revision: https://reviews.llvm.org/D46353 llvm-svn: 332338
* [X86] Revert part of r332266: Use __builtin_convertvector to replace some of ↵Craig Topper2018-05-152-24/+20
| | | | | | | | the avx512 truncate builtins. The masking doesn't work right in the backend for the ones that produce byte or word elements without avx512bw. llvm-svn: 332322
* [AST] Fix printing tag decl groups in decl contextsJoel E. Denny2018-05-151-11/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For example, given: struct T1 { struct T2 *p0; }; -ast-print produced: struct T1 { struct T2; struct T2 *p0; }; Compiling that produces a warning that the first struct T2 declaration does not declare anything. Details: A tag decl group is one or more decls that share a type specifier that is a tag decl (that is, a struct/union/class/enum decl). Within functions, the parser builds such a tag decl group as part of a DeclStmt. However, in decl contexts, such as file scope or a member list, the parser does not group together the members of a tag decl group. Previously, detection of tag decl groups during printing was implemented but only if the tag decl was unnamed. Otherwise, as in the above example, the members of the group did not print together and so sometimes introduced warnings. This patch extends detection of tag decl groups in decl contexts to any tag decl that is recorded in the AST as not free-standing. Reviewed by: rsmith Differential Revision: https://reviews.llvm.org/D45465 llvm-svn: 332314
* Enable control flow pruning of float overflow warnings.Richard Trieu2018-05-141-1/+2
| | | | | | | | | Like other conversion warnings, allow float overflow warnings to be disabled in known dead paths of template instantiation. This often occurs when a template template type is a numeric type and the template will check the range of the numeric type before performing the conversion. llvm-svn: 332310
* [c++17] Fix assertion on synthesizing deduction guides after a fatal error.Volodymyr Sapsai2018-05-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | After a fatal error Sema::InstantiatingTemplate doesn't allow further instantiation and doesn't push a CodeSynthesisContext. When we tried to synthesize implicit deduction guides from constructors we hit the assertion > Assertion failed: (!CodeSynthesisContexts.empty() && "Cannot perform an instantiation without some context on the " "instantiation stack"), function SubstType, file clang/lib/Sema/SemaTemplateInstantiate.cpp, line 1580. Fix by avoiding deduction guide synthesis if InstantiatingTemplate is invalid. rdar://problem/39051732 Reviewers: rsmith Reviewed By: rsmith Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D46446 llvm-svn: 332307
* [analyzer] Re-apply r331096 "CStringChecker: Add support for BSD strlcpy()...".Artem Dergachev2018-05-141-54/+97
| | | | | | | | | | Fixed after revert in r331401. Patch by David Carlier! Differential Revision: https://reviews.llvm.org/D45177 llvm-svn: 332303
* [analyzer] Extend the ObjCAutoreleaseWriteChecker to warn on captures as wellGeorge Karpenkov2018-05-141-29/+51
| | | | | | | | | | A common pattern is that the code in the block does not write into the variable explicitly, but instead passes it to a helper function which performs the write. Differential Revision: https://reviews.llvm.org/D46772 llvm-svn: 332300
* [CodeView] Improve debugging of virtual base class member variablesBrock Wyma2018-05-141-2/+6
| | | | | | | | Initial support for passing the virtual base pointer offset to CodeViewDebug. https://reviews.llvm.org/D46271 llvm-svn: 332296
* Fix regression in r332076.Richard Smith2018-05-141-1/+11
| | | | | | | | | If the name after 'template' is an unresolved using declaration (not containing 'typename'), then we don't yet know if it's a valid template-name, so don't reject it prior to instantiation. Instead, treat it as naming a dependent member of the current instantiation. llvm-svn: 332291
* Remove the fixit for the diagnostics regarding capturing autoreleasing ↵George Karpenkov2018-05-141-24/+0
| | | | | | | | | | | | | | | variables in a block The fixit is actively harmful, as it encourages developers to ignore the warning and to write unsafe code. It is almost impossible to write safe code while capturing autoreleasing variables in the block, as in order to check that the block is never called in the autoreleasing pool the developer has to check the transitive closure of all potential callers of the block. Differential Revision: https://reviews.llvm.org/D46778 llvm-svn: 332288
* [Tooling] Pull #include manipulation code from clangFormat into libToolingCore.Eric Liu2018-05-143-394/+337
| | | | | | | | | | | | | | Summary: Also pull #include related style out of FormatStyle as tooling::IncludeStyle. Reviewers: ilya-biryukov Reviewed By: ilya-biryukov Subscribers: klimek, mgorny, cfe-commits, djasper Differential Revision: https://reviews.llvm.org/D46496 llvm-svn: 332287
* PR37450: Fix bug that disabled some type checks for variables with deduced ↵Richard Smith2018-05-142-7/+21
| | | | | | | | types. Also improve diagnostic for the case where a type is non-literal because it's a lambda. llvm-svn: 332286
* [clang-format] Move #include related style to libToolingCoreEric Liu2018-05-143-34/+55
| | | | | | | | | | | | | | Summary: This will be shared by include insertion/deletion library. Reviewers: ilya-biryukov Reviewed By: ilya-biryukov Subscribers: mgorny, klimek, cfe-commits Differential Revision: https://reviews.llvm.org/D46758 llvm-svn: 332284
* [AST] Print correct tag decl for tag specifierJoel E. Denny2018-05-147-14/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For example, given: void fn() { struct T *p0; struct T { int i; } *p1; } -ast-print produced: void fn() { struct T { int i; } *p0; struct T { int i; } *p1; } Compiling that fails with a redefinition error. Given: void fn() { struct T *p0; struct __attribute__((deprecated)) T *p1; } -ast-print dropped the attribute. Details: For a tag specifier (that is, struct/union/class/enum used as a type specifier in a declaration) that was also a tag declaration (that is, first occurrence of the tag) or tag redeclaration (that is, later occurrence that specifies attributes or a member list), clang printed the tag specifier as either (1) the full tag definition if one existed, or (2) the first tag declaration otherwise. Redefinition errors were sometimes introduced, as in the first example above. Even when that was impossible because no member list was ever specified, attributes were sometimes lost, thus changing semantics and diagnostics, as in the second example above. This patch fixes a major culprit for these problems. It does so by creating an ElaboratedType with a new OwnedDecl member wherever an occurrence of a tag type is a (re)declaration of that tag type. PrintingPolicy's IncludeTagDefinition used to trigger printing of the member list, attributes, etc. for a tag specifier by using a tag (re)declaration selected as described above. Now, it triggers the same thing except it uses the tag (re)declaration stored in the OwnedDecl. Of course, other tooling can now make use of the new OwnedDecl as well. Also, to be more faithful to the original source, this patch suppresses printing of attributes inherited from previous declarations. Reviewed by: rsmith, aaron.ballman Differential Revision: https://reviews.llvm.org/D45463 llvm-svn: 332281
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