[PATCH] D72553: [clang-tidy] Add performance-prefer-preincrement check

[pre-merge checks [bot] via Phabricator via cfe-commits]

merge_guards_bot added a comment.

{icon times-circle color=red} Unit tests: fail. 62129 tests passed, 5 failed and 807 were skipped.

  failed: libc++.std/language_support/cmp/cmp_partialord/partialord.pass.cpp
  failed: libc++.std/language_support/cmp/cmp_strongeq/cmp.strongeq.pass.cpp
  failed: libc++.std/language_support/cmp/cmp_strongord/strongord.pass.cpp
  failed: libc++.std/language_support/cmp/cmp_weakeq/cmp.weakeq.pass.cpp
  failed: libc++.std/language_support/cmp/cmp_weakord/weakord.pass.cpp

{icon times-circle color=red} clang-tidy: fail. clang-tidy found 0 errors and 1 warnings <http://results.llvm-merge-guard.org/amd64_debian_testing_clang8-1574/clang-tidy.txt>. 0 of them are added as review comments below (why? <https://github.com/google/llvm-premerge-checks/blob/master/docs/clang_tidy.md#review-comments>).

{icon check-circle color=green} clang-format: pass.

Build artifacts <http://results.llvm-merge-guard.org/amd64_debian_testing_clang8-1574>: diff.json <http://results.llvm-merge-guard.org/amd64_debian_testing_clang8-1574/diff.json>, clang-tidy.txt <http://results.llvm-merge-guard.org/amd64_debian_testing_clang8-1574/clang-tidy.txt>, clang-format.patch <http://results.llvm-merge-guard.org/amd64_debian_testing_clang8-1574/clang-format.patch>, CMakeCache.txt <http://results.llvm-merge-guard.org/amd64_debian_testing_clang8-1574/CMakeCache.txt>, console-log.txt <http://results.llvm-merge-guard.org/amd64_debian_testing_clang8-1574/console-log.txt>, test-results.xml <http://results.llvm-merge-guard.org/amd64_debian_testing_clang8-1574/test-results.xml>

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