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* Merging r310983:Hans Wennborg2017-08-211-20/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ------------------------------------------------------------------------ r310983 | rsmith | 2017-08-15 18:49:53 -0700 (Tue, 15 Aug 2017) | 31 lines PR19668, PR23034: Fix handling of move constructors and deleted copy constructors when deciding whether classes should be passed indirectly. This fixes ABI differences between Clang and GCC: * Previously, Clang ignored the move constructor when making this determination. It now takes the move constructor into account, per https://github.com/itanium-cxx-abi/cxx-abi/pull/17 (this change may seem recent, but the ABI change was agreed on the Itanium C++ ABI list a long time ago). * Previously, Clang's behavior when the copy constructor was deleted was unstable -- depending on whether the lazy declaration of the copy constructor had been triggered, you might get different behavior. We now eagerly declare the copy constructor whenever its deletedness is unclear, and ignore deleted copy/move constructors when looking for a trivial such constructor. This also fixes an ABI difference between Clang and MSVC: * If the copy constructor would be implicitly deleted (but has not been lazily declared yet), for instance because the class has an rvalue reference member, we would pass it directly. We now pass such a class indirectly, matching MSVC. Based on a patch by Vassil Vassilev, which was based on a patch by Bernd Schmidt, which was based on a patch by Reid Kleckner! This is a re-commit of r310401, which was reverted in r310464 due to ARM failures (which should now be fixed). ------------------------------------------------------------------------ git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_50@311410 91177308-0d34-0410-b5e6-96231b3b80d8
* [ASTMatchers] Add hasInClassInitializer traversal matcher for FieldDecl.Malcolm Parsons2016-12-241-0/+10
| | | | | | | | | | | | | | | Summary: I needed to know whether a FieldDecl had an in-class initializer for D26453. I used a narrowing matcher there, but a traversal matcher might be generally useful. Reviewers: sbenza, bkramer, klimek, aaron.ballman Subscribers: aaron.ballman, Prazek, cfe-commits Differential Revision: https://reviews.llvm.org/D28034 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@290492 91177308-0d34-0410-b5e6-96231b3b80d8
* [ASTMatcher] Clarify isStaticStorageClass and hasStaticStorageDuration ↵Haojian Wu2016-09-271-1/+4
| | | | | | | | | | | | documents. Reviewers: aaron.ballman Subscribers: klimek, cfe-commits Differential Revision: https://reviews.llvm.org/D24928 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@282474 91177308-0d34-0410-b5e6-96231b3b80d8
* [ASTMatcher] Add isStaticStorageClass matcher for varDecl and functionDecl.Haojian Wu2016-09-261-0/+8
| | | | | | | | | | Reviewers: klimek Subscribers: cfe-commits, klimek Differential Revision: https://reviews.llvm.org/D24821 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@282415 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an AST matcher for external formal linkage.Aaron Ballman2016-08-171-0/+16
| | | | | | Patch by Visoiu Mistrih git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@278926 91177308-0d34-0410-b5e6-96231b3b80d8
* Make isExternC work on VarDecls too.Benjamin Kramer2016-08-041-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@277712 91177308-0d34-0410-b5e6-96231b3b80d8
* [ASTMatchers] isSignedInteger() and isUnsignedInteger()Clement Courbet2016-07-121-0/+12
| | | | | | | | | Complementary to isInteger(), these match signed and unsigned integers respectively. Review: http://reviews.llvm.org/D21989 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@275157 91177308-0d34-0410-b5e6-96231b3b80d8
* Add AST matchers for handling bit-fields and narrowing based on their width.Aaron Ballman2016-07-061-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@274652 91177308-0d34-0410-b5e6-96231b3b80d8
* [ASTMatchers] Add isLambda() matcher.Samuel Benzaquen2016-06-281-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@274015 91177308-0d34-0410-b5e6-96231b3b80d8
* Make isNoThrow and hasDynamicExceptionSpec polymorphic so they can be used ↵Aaron Ballman2016-06-071-0/+21
| | | | | | | | with both functionDecl and functionPrototype matchers. Patch by Don Hinton. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@272028 91177308-0d34-0410-b5e6-96231b3b80d8
* Dividied ASTMatcherTests into 4 filesPiotr Padlewski2016-05-171-0/+1888
fix for long compilation [20061] http://reviews.llvm.org/D20210 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@269802 91177308-0d34-0410-b5e6-96231b3b80d8
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