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* [clang] Loop pragma parsing. NFC.Sjoerd Meijer2019-08-151-18/+13
| | | | | | | | Just a refactoring and a tidy up. Differential Revision: https://reviews.llvm.org/D64564 llvm-svn: 368976
* [Clang] Migrate llvm::make_unique to std::make_uniqueJonas Devlieghere2019-08-141-45/+45
| | | | | | | | | | Now that we've moved to C++14, we no longer need the llvm::make_unique implementation from STLExtras.h. This patch is a mechanical replacement of (hopefully) all the llvm::make_unique instances across the monorepo. Differential revision: https://reviews.llvm.org/D66259 llvm-svn: 368942
* [Clang] New loop pragma vectorize_predicateSjoerd Meijer2019-07-251-0/+3
| | | | | | | | | | | | | | | | | | | This adds a new vectorize predication loop hint: #pragma clang loop vectorize_predicate(enable) that can be used to indicate to the vectoriser that all (load/store) instructions should be predicated (masked). This allows, for example, folding of the remainder loop into the main loop. This patch will be followed up with D64916 and D65197. The former is a refactoring in the loopvectorizer and the groundwork to make tail loop folding a more general concept, and in the latter the actual tail loop folding transformation will be implemented. Differential Revision: https://reviews.llvm.org/D64744 llvm-svn: 366989
* Fix parameter name comments using clang-tidy. NFC.Rui Ueyama2019-07-161-3/+3
| | | | | | | | | | | | | | | | | | | | | This patch applies clang-tidy's bugprone-argument-comment tool to LLVM, clang and lld source trees. Here is how I created this patch: $ git clone https://github.com/llvm/llvm-project.git $ cd llvm-project $ mkdir build $ cd build $ cmake -GNinja -DCMAKE_BUILD_TYPE=Debug \ -DLLVM_ENABLE_PROJECTS='clang;lld;clang-tools-extra' \ -DCMAKE_EXPORT_COMPILE_COMMANDS=On -DLLVM_ENABLE_LLD=On \ -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ ../llvm $ ninja $ parallel clang-tidy -checks='-*,bugprone-argument-comment' \ -config='{CheckOptions: [{key: StrictMode, value: 1}]}' -fix \ ::: ../llvm/lib/**/*.{cpp,h} ../clang/lib/**/*.{cpp,h} ../lld/**/*.{cpp,h} llvm-svn: 366177
* [OpenMP] Set pragma start loc to `#pragma` locJoel E. Denny2019-05-281-1/+1
| | | | | | | | | | | | | | | This patch adjusts `PragmaOpenMPHandler` to set the location of `tok::annot_pragma_openmp` to the `#pragma` location instead of the `omp` location so that the former becomes the start location of the OpenMP AST node. This can be useful when, for example, rewriting a directive using Clang's Rewrite facility. Most of this patch updates tests for changes to locations in diagnostics and `-ast-dump` output. Reviewed By: ABataev, lebedev.ri, Meinersbur, aaron.ballman Differential Revision: https://reviews.llvm.org/D61509 llvm-svn: 361867
* [PragmaHandler] Expose `#pragma` locationJoel E. Denny2019-05-211-72/+69
| | | | | | | | | | | | | | | | | | | | | | | Currently, a pragma AST node's recorded location starts at the namespace token (such as `omp` in the case of OpenMP) after the `#pragma` token, and the `#pragma` location isn't available. However, the `#pragma` location can be useful when, for example, rewriting a directive using Clang's Rewrite facility. This patch makes `#pragma` locations available in any `PragmaHandler` but it doesn't yet make use of them. This patch also uses the new `struct PragmaIntroducer` to simplify `Preprocessor::HandlePragmaDirective`. It doesn't do the same for `PPCallbacks::PragmaDirective` because that changes the API documented in `clang-tools-extra/docs/pp-trace.rst`, and I'm not sure about backward compatibility guarantees there. Reviewed By: ABataev, lebedev.ri, aaron.ballman Differential Revision: https://reviews.llvm.org/D61643 llvm-svn: 361335
* [Lex] Allow to consume tokens while preprocessingIlya Biryukov2019-05-171-23/+37
| | | | | | | | | | | | | | | | | | | | | | | | | Summary: By adding a hook to consume all tokens produced by the preprocessor. The intention of this change is to make it possible to consume the expanded tokens without re-runnig the preprocessor with minimal changes to the preprocessor and minimal performance penalty when preprocessing without recording the tokens. The added hook is very low-level and reconstructing the expanded token stream requires more work in the client code, the actual algorithm to collect the tokens using this hook can be found in the follow-up change. Reviewers: rsmith Reviewed By: rsmith Subscribers: eraman, nemanjai, kbarton, jsji, riccibruno, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D59885 llvm-svn: 361007
* [OpenCL][PR40603] In C++ preserve compatibility with OpenCL C v2.0Anastasia Stulova2019-02-071-5/+4
| | | | | | | | | | Valid OpenCL C code should still compile in C++ mode. This change enables extensions and OpenCL types. Differential Revision: https://reviews.llvm.org/D57824 llvm-svn: 353431
* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
* Add two new pragmas for controlling software pipelining optimizations.Aaron Ballman2019-01-041-12/+24
| | | | | | | | This patch adds #pragma clang loop pipeline and #pragma clang loop pipeline_initiation_interval for debugging or reducing compile time purposes. It is possible to disable SWP for concrete loops to save compilation time or to find bugs by not doing SWP to certain loops. It is possible to set value of initiation interval to concrete number to save compilation time by not doing extra pipeliner passes or to check created schedule for specific initiation interval. Patch by Alexey Lapshin. llvm-svn: 350414
* Add support for namespaces on #pragma clang attributeErik Pilkington2018-12-201-6/+40
| | | | | | | | | | | | | | | | Namespaces are introduced by adding an "identifier." before a push/pop directive. Pop directives with namespaces can only pop a attribute group that was pushed with the same namespace. Push and pop directives that don't opt into namespaces have the same semantics. This is necessary to prevent a pitfall of using multiple #pragma clang attribute directives spread out in a large file, particularly when macros are involved. It isn't easy to see which pop corripsonds to which push, so its easy to inadvertently pop the wrong group. Differential revision: https://reviews.llvm.org/D55628 llvm-svn: 349845
* Move LoopHint.h from Sema to ParseRichard Trieu2018-11-281-1/+1
| | | | | | | | struct LoopHint was only used within Parse and not in any of the Sema or Codegen files. In the non-Parse files where it was included, it either wasn't used or LoopHintAttr was used, so its inclusion did nothing. llvm-svn: 347728
* NFC cleanup: Prefer make_unique over reset(new T())David Blaikie2018-11-151-40/+43
| | | | llvm-svn: 346929
* Revert "Revert "Support for groups of attributes in #pragma clang attribute""Erik Pilkington2018-10-291-17/+39
| | | | | | | This reverts commit r345487, which reverted r345486. I think the crashes were caused by an OOM on the builder, trying again to confirm... llvm-svn: 345517
* Revert "Support for groups of attributes in #pragma clang attribute"Erik Pilkington2018-10-291-40/+18
| | | | | | | | | This reverts commit r345486. Looks like it causes some old versions of GCC to crash, I'll see if I can work around it and recommit... llvm-svn: 345487
* Support for groups of attributes in #pragma clang attributeErik Pilkington2018-10-291-18/+40
| | | | | | | | | | | | | | | | | | This commit enables pushing an empty #pragma clang attribute push, then adding multiple attributes to it, then popping them all with #pragma clang attribute pop, just like #pragma clang diagnostic. We still support the current way of adding these, #pragma clang attribute push(__attribute__((...))), by treating it like a combined push/attribute. This is needed to create macros like: DO_SOMETHING_BEGIN(attr1, attr2, attr3) // ... DO_SOMETHING_END rdar://45496947 Differential revision: https://reviews.llvm.org/D53621 llvm-svn: 345486
* We have in place support for parsing #pragma FENV_ACCESS, but that Kevin P. Neal2018-08-141-1/+36
| | | | | | | | | | | | | information is then discarded with a warning to the user that we don't support it. This patch gets us one step closer by getting the info down into the AST in most cases. Reviewed by: rsmith Differential Revision: https://reviews.llvm.org/D49865 llvm-svn: 339693
* [UnrollAndJam] Add unroll_and_jam pragma handlingDavid Green2018-08-011-13/+40
| | | | | | | | | | | | | | This adds support for the unroll_and_jam pragma, to go with the recently added unroll and jam pass. The name of the pragma is the same as is used in the Intel compiler, and most of the code works the same as for unroll. #pragma clang loop unroll_and_jam has been separated into a different patch. This part adds #pragma unroll_and_jam with an optional count, and #pragma no_unroll_and_jam to disable the transform. Differential Revision: https://reviews.llvm.org/D47267 llvm-svn: 338566
* Remove trailing spaceFangrui Song2018-07-301-15/+15
| | | | | | sed -Ei 's/[[:space:]]+$//' include/**/*.{def,h,td} lib/**/*.{cpp,h} llvm-svn: 338291
* [NFC] Rename clang::AttributeList to clang::ParsedAttrErich Keane2018-07-131-8/+7
| | | | | | | Since The type no longer contains the 'next' item anymore, it isn't a list, so rename it to ParsedAttr to be more accurate. llvm-svn: 337005
* AttributeList de-listifying:Erich Keane2018-07-121-6/+6
| | | | | | | | | | | Basically, "AttributeList" loses all list-like mechanisms, ParsedAttributes is switched to use a TinyPtrVector (and a ParsedAttributesView is created to have a non-allocating attributes list). DeclaratorChunk gets the later kind, Declarator/DeclSpec keep ParsedAttributes. Iterators are added to the ParsedAttribute types so that for-loops work. llvm-svn: 336945
* Remove \brief commands from doxygen comments.Adrian Prantl2018-05-091-13/+13
| | | | | | | | | | | | | | | | | | | This is similar to the LLVM change https://reviews.llvm.org/D46290. We've been running doxygen with the autobrief option for a couple of years now. This makes the \brief markers into our comments redundant. Since they are a visual distraction and we don't want to encourage more \brief markers in new code either, this patch removes them all. Patch produced by for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done Differential Revision: https://reviews.llvm.org/D46320 llvm-svn: 331834
* Fix typos in clangAlexander Kornienko2018-04-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Found via codespell -q 3 -I ../clang-whitelist.txt Where whitelist consists of: archtype cas classs checkk compres definit frome iff inteval ith lod methode nd optin ot pres statics te thru Patch by luzpaz! (This is a subset of D44188 that applies cleanly with a few files that have dubious fixes reverted.) Differential revision: https://reviews.llvm.org/D44188 llvm-svn: 329399
* [ms] Parse #pragma optimize and ignore it behind its own flagHans Wennborg2018-03-201-0/+65
| | | | | | | | | This allows users to turn off warnings about this pragma specifically, while still receiving warnings about other ignored pragmas. Differential Revision: https://reviews.llvm.org/D44630 llvm-svn: 327959
* [OPENMP] Fix parsing of the directives with inner directives.Alexey Bataev2018-02-161-1/+13
| | | | | | | The parsing may lead to compiler hanging because of the incorrect processing of inner OpenMP pragmas. llvm-svn: 325369
* PR36307: Consume the #pragma options align annotation token afterAlex Lorenz2018-02-081-2/+4
| | | | | | | | | semantic analysis to prevent incorrect -Wpragma-pack warning for an included file rdar://37354951 llvm-svn: 324651
* Support `#pragma comment(lib, "name")` in the frontend for ELFSaleem Abdulrasool2018-02-071-2/+10
| | | | | | | | | | | | | This adds the frontend support required to support the use of the comment pragma to enable auto linking on ELFish targets. This is a generic ELF extension supported by LLVM. We need to change the handling for the "dependentlib" in order to accommodate the previously discussed encoding for the dependent library descriptor. Without the custom handling of the PCK_Lib directive, the -l prefixed option would be encoded into the resulting object (which is treated as a frontend error). llvm-svn: 324438
* Preserve unknown STDC pragma through preprocessorSteven Wu2018-01-051-0/+56
| | | | | | | | | | | | | | | | | | | Summary: #pragma STDC FP_CONTRACT handler is only registered in parser so we should keep the unknown STDC pragma through preprocessor and we also should not emit warning for unknown STDC pragma during preprocessor. rdar://problem/35724351 Reviewers: efriedma, rsmith, arphaman Reviewed By: efriedma Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D41780 llvm-svn: 321909
* Place implictly declared functions at block scopeMomchil Velikov2017-08-101-1/+2
| | | | | | | | | | | | Such implicitly declared functions behave as if the enclosing block contained the declaration extern int name() (C90, 6.3.3.2 Function calls), thus their names should have block scope (C90, 6.1.2.1 Scope of identifiers). This patch fixes https://bugs.llvm.org/show_bug.cgi?id=33224 Differential Revision: https://reviews.llvm.org/D33676 llvm-svn: 310616
* Recommit r308327 3rd time: Add a warning for missingAlex Lorenz2017-07-281-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | '#pragma pack (pop)' and suspicious uses of '#pragma pack' in included files The second recommit (r309106) was reverted because the "non-default #pragma pack value chages the alignment of struct or union members in the included file" warning proved to be too aggressive for external projects like Chromium (https://bugs.chromium.org/p/chromium/issues/detail?id=749197). This recommit makes the problematic warning a non-default one, and gives it the -Wpragma-pack-suspicious-include warning option. The first recommit (r308441) caused a "non-default #pragma pack value might change the alignment of struct or union members in the included file" warning in LLVM itself. This recommit tweaks the added warning to avoid warnings for #includes that don't have any records that are affected by the non-default alignment. This tweak avoids the previously emitted warning in LLVM. Original message: This commit adds a new -Wpragma-pack warning. It warns in the following cases: - When a translation unit is missing terminating #pragma pack (pop) directives. - When entering an included file if the current alignment value as determined by '#pragma pack' directives is different from the default alignment value. - When leaving an included file that changed the state of the current alignment value. rdar://10184173 Differential Revision: https://reviews.llvm.org/D35484 llvm-svn: 309386
* Revert r309106 "Recommit r308327 2nd time: Add a warning for missing"Hans Wennborg2017-07-261-7/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The warning fires on non-suspicious code in Chromium. Reverting until a solution is figured out. > Recommit r308327 2nd time: Add a warning for missing > '#pragma pack (pop)' and suspicious uses of '#pragma pack' in included files > > The first recommit (r308441) caused a "non-default #pragma pack value might > change the alignment of struct or union members in the included file" warning > in LLVM itself. This recommit tweaks the added warning to avoid warnings for > #includes that don't have any records that are affected by the non-default > alignment. This tweak avoids the previously emitted warning in LLVM. > > Original message: > > This commit adds a new -Wpragma-pack warning. It warns in the following cases: > > - When a translation unit is missing terminating #pragma pack (pop) directives. > - When entering an included file if the current alignment value as determined > by '#pragma pack' directives is different from the default alignment value. > - When leaving an included file that changed the state of the current alignment > value. > > rdar://10184173 > > Differential Revision: https://reviews.llvm.org/D35484 llvm-svn: 309186
* Recommit r308327 2nd time: Add a warning for missingAlex Lorenz2017-07-261-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | '#pragma pack (pop)' and suspicious uses of '#pragma pack' in included files The first recommit (r308441) caused a "non-default #pragma pack value might change the alignment of struct or union members in the included file" warning in LLVM itself. This recommit tweaks the added warning to avoid warnings for #includes that don't have any records that are affected by the non-default alignment. This tweak avoids the previously emitted warning in LLVM. Original message: This commit adds a new -Wpragma-pack warning. It warns in the following cases: - When a translation unit is missing terminating #pragma pack (pop) directives. - When entering an included file if the current alignment value as determined by '#pragma pack' directives is different from the default alignment value. - When leaving an included file that changed the state of the current alignment value. rdar://10184173 Differential Revision: https://reviews.llvm.org/D35484 llvm-svn: 309106
* Revert r308441 "Recommit r308327: Add a warning for missing '#pragma pack ↵Hans Wennborg2017-07-191-7/+2
| | | | | | | | | | | | | | | | | | | | | (pop)' and suspicious uses of '#pragma pack' in included files" This seems to have broken the sanitizer-x86_64-linux buildbot. Reverting until it's fixed, especially since this landed just before the 5.0 branch. > This commit adds a new -Wpragma-pack warning. It warns in the following cases: > > - When a translation unit is missing terminating #pragma pack (pop) directives. > - When entering an included file if the current alignment value as determined > by '#pragma pack' directives is different from the default alignment value. > - When leaving an included file that changed the state of the current alignment > value. > > rdar://10184173 > > Differential Revision: https://reviews.llvm.org/D35484 llvm-svn: 308455
* Recommit r308327: Add a warning for missing '#pragma pack (pop)'Alex Lorenz2017-07-191-2/+7
| | | | | | | | | | | | | | | | | | and suspicious uses of '#pragma pack' in included files This commit adds a new -Wpragma-pack warning. It warns in the following cases: - When a translation unit is missing terminating #pragma pack (pop) directives. - When entering an included file if the current alignment value as determined by '#pragma pack' directives is different from the default alignment value. - When leaving an included file that changed the state of the current alignment value. rdar://10184173 Differential Revision: https://reviews.llvm.org/D35484 llvm-svn: 308441
* Revert r308327Alex Lorenz2017-07-181-7/+2
| | | | | | I forgot to test clang-tools-extra which is now failing. llvm-svn: 308328
* Add a warning for missing '#pragma pack (pop)' and suspicious usesAlex Lorenz2017-07-181-2/+7
| | | | | | | | | | | | | | | | | | of '#pragma pack' in included files This commit adds a new -Wpragma-pack warning. It warns in the following cases: - When a translation unit is missing terminating #pragma pack (pop) directives. - When entering an included file if the current alignment value as determined by '#pragma pack' directives is different from the default alignment value. - When leaving an included file that changed the state of the current alignment value. rdar://10184173 Differential Revision: https://reviews.llvm.org/D35484 llvm-svn: 308327
* Add support for #pragma clang sectionJaved Absar2017-06-051-0/+60
| | | | | | | | | | | | | | | This patch provides a means to specify section-names for global variables, functions and static variables, using #pragma directives. This feature is only defined to work sensibly for ELF targets. One can specify section names as: #pragma clang section bss="myBSS" data="myData" rodata="myRodata" text="myText" One can "unspecify" a section name with empty string e.g. #pragma clang section bss="" data="" text="" rodata="" Reviewers: Roger Ferrer, Jonathan Roelofs, Reid Kleckner Differential Revision: https://reviews.llvm.org/D33412 llvm-svn: 304705
* Fix the location of "missing ';'" suggestions after annotation tokens.Richard Smith2017-05-181-22/+22
| | | | | | | | | | We were incorrectly setting PrevTokLocation to the first token in the annotation token instead of the last when consuming it. To fix this without adding a complex switch to the hot path through ConsumeToken, we now have a ConsumeAnnotationToken function for consuming annotation tokens in addition to the other Consume*Token special case functions. llvm-svn: 303372
* Add #pragma clang attributeAlex Lorenz2017-04-181-0/+534
| | | | | | | | | | | | | | | | | 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 Lorenz2017-04-181-535/+0
| | | | | | | 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 Lorenz2017-04-181-0/+2
| | | | | | The warning was caused by r300539. llvm-svn: 300542
* Add #pragma clang attributeAlex Lorenz2017-04-181-0/+533
| | | | | | | | | | | | | | 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
* Add #pragma clang fpAdam Nemet2017-04-041-1/+150
| | | | | | | | | | | | | | | | | | | | | | | | | This adds the new pragma and the first variant, contract(on/off/fast). The pragma has the same block scope rules as STDC FP_CONTRACT, i.e. it can be placed at the beginning of a compound statement or at file scope. Similarly to STDC FP_CONTRACT there is no need to use attributes. First an annotate token is inserted with the parsed details of the pragma. Then the annotate token is parsed in the proper contexts and the Sema is updated with the corresponding FPOptions using the shared ActOn function with STDC FP_CONTRACT. After this the FPOptions from the Sema is propagated into the AST expression nodes. There is no change here. I was going to add a 'default' option besides 'on/off/fast' similar to STDC FP_CONTRACT but then decided against it. I think that we'd have to make option uppercase then to avoid using 'default' the keyword. Also because of the scoped activation of pragma I am not sure there is really a need a for this. Differential Revision: https://reviews.llvm.org/D31276 llvm-svn: 299470
* Publish RAIIObjectsForParser.h for external usage.Vassil Vassilev2017-03-231-1/+1
| | | | | | | | | Some clients (eg the cling interpreter) need to recover their parser from errors. Patch by Axel Naumann (D31190)! llvm-svn: 298606
* [OpenCL] Re-enable supported core extensions based on opencl version when ↵Konstantin Zhuravlyov2017-01-061-2/+4
| | | | | | | | disabling all extensions using pragma Differential Revision: https://reviews.llvm.org/D28257 llvm-svn: 291243
* Recommit r289979 [OpenCL] Allow disabling types and declarations associated ↵Yaxun Liu2016-12-181-42/+55
| | | | | | | | with extensions Fixed undefined behavior due to cast integer to bool in initializer list. llvm-svn: 290056
* Revert r289979 due to regressionsYaxun Liu2016-12-161-55/+42
| | | | llvm-svn: 289991
* [OpenCL] Allow disabling types and declarations associated with extensionsYaxun Liu2016-12-161-42/+55
| | | | | | | | | | | | | | | | | | 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
* [CUDA] Add #pragma clang force_cuda_host_device_{begin,end} pragmas.Justin Lebar2016-10-081-0/+44
| | | | | | | | | | | | | | | | | Summary: These cause us to consider all functions in-between to be __host__ __device__. You can nest these pragmas; you just can't have more 'end's than 'begin's. Reviewers: rsmith Subscribers: tra, jhen, cfe-commits Differential Revision: https://reviews.llvm.org/D24975 llvm-svn: 283677
* Parsing MS pragma intrinsicReid Kleckner2016-09-071-0/+60
| | | | | | | | | | | | | | | Parse pragma intrinsic, display warning if the function isn't a builtin function in clang and suggest including intrin.h. Patch by Albert Gutowski! Reviewers: aaron.ballman, rnk Subscribers: aaron.ballman, cfe-commits Differential Revision: https://reviews.llvm.org/D23944 llvm-svn: 280825
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