[clang-tools-extra] [clang-tidy] New option `CompilationArgsToRemoveRegex` to remove arguments from the command line (PR #111453)

[Carlos Galvez via cfe-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/111453 at github.com>


carlosgalvezp wrote:

The way we do it at our place is that we have 2 toolchains, one for GCC and one for Clang, each with separate sets of flags. We assume that being able to compile with Clang is a prerequisite to running clang-tidy. For example, even if you have only `-Wall`, Clang (via clang-tidy) could introduce a warning that GCC doesn't have, so you'd get Clang compiler errors via clang-tidy (`clang-diagnostic-error`), which is confusing.

Once that's satisfied, we can run clang-tidy based on the Clang toolchain - this way we ensure all the flags are valid for clang-tidy (since they are for Clang).

But I understand if having 2 parallel toolchains can be costly to maintain.

https://github.com/llvm/llvm-project/pull/111453