commit 51070f080dba8cad202a533ff4d0218009d00d46
author Anton Bikineev <bikineev@chromium.org> Fri Apr 02 20:14:44 2021 +0200
committer Copybara-Service <copybara-worker@google.com> Tue Apr 13 16:55:34 2021 -0700
tree 805e5b84e3f9f43097bd2a719351c200b8a3c98e
parent 19d9f4693e7714c99d4a4c6b0f5e3d24ad0030ac

[Sema] Move 'char-expression-as-unsigned < 0' into a separate diagnostic

This change splits '-Wtautological-unsigned-zero-compare' by reporting
char-expressions-interpreted-as-unsigned under a separate diagnostic
'-Wtautological-unsigned-char-zero-compare'. This is beneficial for
projects that want to enable '-Wtautological-unsigned-zero-compare' but at
the same time want to keep code portable for platforms with char being
signed or unsigned, such as Chromium.

Differential Revision: https://reviews.llvm.org/D99808

GitOrigin-RevId: 69545154cc28a0a7f813174253c6cb428666eb3a