[sycl-post-link][NFC] Address clang-tidy concerns in the sycl-post-link #5552
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The patch fixes some issues from clang-tidy related to the code-style and missed auto-stars (auto*) when a local variable is a pointer.
ghost
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| if (TraverseResult.hasValue()) | ||
| return std::move(*TraverseResult); | ||
| return std::move(*TraverseResult); // TODO remove std::move after C++17 |
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Why after C++17? Isn't it work since C++11?
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Maybe I should remove this comment at all. My intent was the following, in C++17 copy elision is guaranteed by the Standard and there is no need in std::move here (before C++17 compilers do such optimization too but it was not guaranteed). Usually compilers warn about using std::move in return statements since it prevents RVO/NRVO optimization but not in this case, there is no warning during sycl-post-link compilation at least on MSVC. I've tried a small example, a function that returns a vector of verbose copyable objects, but I see no copies regardless of std::move using. @maksimsab Could you comment the using of std::move here? I understand why std::move is used in the last return statement there https://github.com/intel/llvm/pull/5552/files#diff-7d1ae2c6e3e847852b55edea2a54fc5309328f32e56800a636a4e3d9c906948bR414 (we just fill the instance of llvm::Optional) but not here.
bader
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…/llvm into refactor_existing_workflows * 'refactor_existing_workflows' of github.com:alexbatashev/llvm: (2051 commits) [SYCL][L0] Honor property::queue::enable_profiling (intel#5543) [SYCL][CI] Enable sccache on Windows (intel#5589) [SYCL][Doc] Move internal design docs (intel#5556) [sycl-post-link] Initialize the integer Value variable (intel#5585) [CI] Fix nightly builds (intel#5584) [SYCL][L0] Fix use of copy-engines in L0 interop queue (intel#5579) Update OpenCL headers tag to dcd5bed (intel#5575) [SYCL] Fix warning for InOrderQueueSyncCheck unit test build (intel#5577) [SYCL][HIP] Remove arch requirement for running lit tests (intel#5253) [SYCL][L0] Fix timestamp calculation (in ns) (intel#5555) [SYCL] Fix sync of host task vs kernel for in-order queue (intel#5551) [sycl-post-link] Add a check for device globals with device_image_scope (intel#5517) [SYCL] Fix SYCL Kernel Body Check (intel#5546) [SYCL] Add support for SYCL 2020 in class group (intel#5447) Fix tests after 1c729d7 Use align attribute for kernel pointer arg alignment Fix tests after 18834dc Mark pointer-typed kernel arguments as ABI aligned [CI] Add experimental Windows build to GitHub Actions nightly (intel#5560) [sycl-post-link][NFC] Address clang-tidy concerns in the sycl-post-link (intel#5552) Fix lit test after changes in Clang Improve backward compatibility for DISubRange ...
The patch fixes some issues from clang-tidy related to the code-style
and missed auto-stars (auto*) when a local variable is a pointer.