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declaration and DependentNameType)
Reland after https://reviews.llvm.org/D66806 fixed the false-positive diagnostics.
Summary:
This fixes inference of gsl::Pointer on std::set::iterator with libstdc++ (the typedef for iterator
on the template is a DependentNameType - we can only put the gsl::Pointer attribute
on the underlaying record after instantiation)
inference of gsl::Pointer on std::vector::iterator with libc++ (the class was forward-declared,
we added the gsl::Pointer on the canonical decl (the forward decl), and later when the
template was instantiated, there was no attribute on the definition so it was not instantiated).
and a duplicate gsl::Pointer on some class with libstdc++ (we first added an attribute to
a incomplete instantiation, and then another was copied from the template definition
when the instantiation was completed).
We now add the attributes to all redeclarations to fix thos issues and make their usage easier.
Reviewers: gribozavr
Subscribers: Szelethus, xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D66179
llvm-svn: 371182
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declaration and DependentNameType)"
This reverts commit r369591, because it causes the formerly-reliable
-Wreturn-stack-address warning to start issuing false positives.
Testcase provided on the commit thread.
llvm-svn: 369677
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DependentNameType)
Summary:
This fixes inference of gsl::Pointer on std::set::iterator with libstdc++ (the typedef for iterator
on the template is a DependentNameType - we can only put the gsl::Pointer attribute
on the underlaying record after instantiation)
inference of gsl::Pointer on std::vector::iterator with libc++ (the class was forward-declared,
we added the gsl::Pointer on the canonical decl (the forward decl), and later when the
template was instantiated, there was no attribute on the definition so it was not instantiated).
and a duplicate gsl::Pointer on some class with libstdc++ (we first added an attribute to
a incomplete instantiation, and then another was copied from the template definition
when the instantiation was completed).
We now add the attributes to all redeclarations to fix thos issues and make their usage easier.
Reviewers: gribozavr
Subscribers: Szelethus, xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D66179
llvm-svn: 369591
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Summary:
Hard code gsl::Owner/gsl::Pointer for std types. The paper mentions
some types explicitly. Generally, all containers and their iterators are
covered. For iterators, we cover both the case that they are defined
as an nested class or as an typedef/using. I have started to test this
implementation against some real standard library implementations, namely
libc++ 7.1.0, libc++ 8.0.1rc2, libstdc++ 4.6.4, libstdc++ 4.8.5,
libstdc++ 4.9.4, libstdc++ 5.4.0, libstdc++ 6.5.0, libstdc++ 7.3.0,
libstdc++ 8.3.0 and libstdc++ 9.1.0.
The tests are currently here
https://github.com/mgehre/llvm-project/blob/lifetime-ci/lifetime-attr-test.sh
https://github.com/mgehre/llvm-project/blob/lifetime-ci/lifetime-attr-test.cpp
I think due to their dependency on a standard library, they are not a good fit
for clang/test/. Where else could I put them?
Reviewers: gribozavr, xazax.hun
Subscribers: rnkovacs, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64448
llvm-svn: 368147
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