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Author SHA1 Message Date
Saar Raz a0f50d7316 [Concepts] Requires Expressions 
Implement support for C++2a requires-expressions.

Re-commit after compilation failure on some platforms due to alignment issues with PointerIntPair.

Differential Revision: https://reviews.llvm.org/D50360
 2020-01-19 00:23:26 +02:00
Saar Raz baa84d8cde Revert "[Concepts] Requires Expressions" 
This reverts commit 0279318997.

There have been some failing tests on some platforms, reverting while investigating.
 2020-01-18 14:58:01 +02:00
Saar Raz 0279318997 [Concepts] Requires Expressions 
Implement support for C++2a requires-expressions.

Differential Revision: https://reviews.llvm.org/D50360
 2020-01-18 09:15:36 +02:00
Saar Raz b65b1f322b [Concepts] Function trailing requires clauses 
Function trailing requires clauses now parsed, supported in overload resolution and when calling, referencing and taking the address of functions or function templates.

Differential Revision: https://reviews.llvm.org/D43357
 2020-01-09 15:07:51 +02:00
Saar Raz df061c3e2b [Concepts] Constrained partial specializations and function overloads. 
Added support for constraint satisfaction checking and partial ordering of constraints in constrained partial specialization and function template overloads.
Re-commit after fixing another crash (added regression test).

Differential Revision: https://reviews.llvm.org/D41910
 2019-12-23 08:37:35 +02:00
Reid Kleckner 79cc9e9b30 Revert "[Concepts] Constrained partial specializations and function overloads." 
This reverts commit d3f5769d5e.

Causes crashes on Chromium. Have reproducer, will reduce and send along.
 2019-12-22 11:40:07 -08:00
Saar Raz d3f5769d5e [Concepts] Constrained partial specializations and function overloads. 
Added support for constraint satisfaction checking and partial ordering of constraints in constrained partial specialization and function template overloads.
Re-commit after fixing some crashes and warnings.

Differential Revision: https://reviews.llvm.org/D41910
 2019-12-22 13:15:38 +02:00
Vedant Kumar 5094e6dad6 Revert concepts changes from D41910 
These changes caused LibcxxVariantDataFormatterTestCase in lldb to fail
with an assert:

Assertion failed: (Idx < size() && "Out-of-bounds Bit access."),
function operator[], file
/Users/buildslave/jenkins/workspace/lldb-cmake/llvm-project/llvm/include/llvm/ADT/SmallBitVector.h,
line 452.

In:

7  clang-10                 0x00000001094b79d9 isAtLeastAsSpecializedAs(clang::Sema&, clang::SourceLocation, clang::FunctionTemplateDecl*, clang::FunctionTemplateDecl*, clang::TemplatePartialOrderingContext, unsigned int) + 1865
8  clang-10                 0x00000001094b7111 clang::Sema::getMoreSpecializedTemplate(clang::FunctionTemplateDecl*, clang::FunctionTemplateDecl*, clang::SourceLocation, clang::TemplatePartialOrderingContext, unsigned int, unsigned int) + 97
9  clang-10                 0x000000010939bf88 clang::isBetterOverloadCandidate(clang::Sema&, clang::OverloadCandidate const&, clang::OverloadCandidate const&, clang::SourceLocation, clang::OverloadCandidateSet::CandidateSetKind) + 1128

Revert "[Concepts] Fix incorrect move out of temporary in D41910"

This reverts commit 11d5fa6e87.

Revert "[Concepts] Fix crash in D41910"

This reverts commit 12038be20e.

Revert "[Concepts] Constrained partial specializations and function overloads."

This reverts commit fc0731b98a.
 2019-12-18 15:02:39 -08:00
Saar Raz 11d5fa6e87 [Concepts] Fix incorrect move out of temporary in D41910 
Moves out of temporaries caused warnings that failed builds.
 2019-12-18 21:43:53 +02:00
Saar Raz 12038be20e [Concepts] Fix crash in D41910 
Differential Revision: https://reviews.llvm.org/D41910
 2019-12-18 21:31:33 +02:00
Saar Raz fc0731b98a [Concepts] Constrained partial specializations and function overloads. 
Added support for constraint satisfaction checking and partial ordering of constraints in constrained partial specialization and function template overloads.

Phabricator: D41910
 2019-12-18 21:01:31 +02:00
Saar Raz fdf80e86a5 [Concepts] Constraint Enforcement & Diagnostics 
Part of the C++20 concepts implementation effort.
- Associated constraints (requires clauses, currently) are now enforced when instantiating/specializing templates and when considering partial specializations and function overloads.
- Elaborated diagnostics give helpful insight as to why the constraints were not satisfied.
Phabricator: D41569

Re-commit, after fixing some memory bugs.
 2019-12-06 01:34:20 +02:00
Vlad Tsyrklevich 38839d08b8 Revert "[Concepts] Constraint Enforcement & Diagnostics" 
This reverts commit ffa214ef22, it was
causing ASAN test failures on sanitizer-x86_64-linux-bootstrap.
 2019-10-28 15:00:40 -07:00
Saar Raz ffa214ef22 [Concepts] Constraint Enforcement & Diagnostics 
Part of the C++20 concepts implementation effort.
- Associated constraints (requires clauses, currently) are now enforced when instantiating/specializing templates and when considering partial specializations and function overloads.
- Elaborated diagnostics give helpful insight as to why the constraints were not satisfied.
Phabricator: D41569
 2019-10-25 00:19:51 +03:00
Saar Raz 0330fba6e1 [Concept] Associated Constraints Infrastructure 
Add code to correctly calculate the associated constraints of a template (no enforcement yet).
D41284 on Phabricator.

llvm-svn: 374938
 2019-10-15 18:44:06 +00:00
Saar Raz 5d98ba6077 [Concepts] Concept Specialization Expressions 
Part of C++20 Concepts implementation effort. Added Concept Specialization Expressions that are created when a concept is refe$

D41217 on Phabricator.

(recommit after fixing failing Parser test on windows)

llvm-svn: 374903
 2019-10-15 15:24:26 +00:00
Nico Weber b4638f9ff0 Revert 374882 "[Concepts] Concept Specialization Expressions" 
This reverts commit ec87b00382.
The test fails on Windows, see e.g.
http://lab.llvm.org:8011/builders/clang-x64-windows-msvc/builds/11533/steps/stage%201%20check/logs/stdio

Also revert follow-up r374893.

llvm-svn: 374899
 2019-10-15 14:46:39 +00:00
Saar Raz ec87b00382 [Concepts] Concept Specialization Expressions 
Part of C++20 Concepts implementation effort. Added Concept Specialization Expressions that are created when a concept is referenced with arguments, and tests thereof.

llvm-svn: 374882
 2019-10-15 11:48:58 +00:00