On Tue, 5 Jan 2021 00:12:58 GMT, Ioi Lam <ik...@openjdk.org> wrote:

>>> `#include "runtime/globals_shared.hpp"` should not be removed. 
>>> compiler_globals.hpp uses the `DECLARE_FLAGS` macro, which is defined by 
>>> globals_shared.hpp.
>> 
>> Since globals_shared.hpp is included in compiler_globals_pd.hpp, I think 
>> it's fine to remove it.
>
> We should not rely on indirect inclusion. Otherwise, compiler_globals.hpp 
> will break if compiler_globals_pd.hpp is changed to not include 
> globals_shared.hpp. 
> 
> In fact, I have been fixing a lot of such problems when restructuring the 
> header files. See https://github.com/openjdk/jdk/pull/1610 -- the vast 
> majority of the 59 files changed in that PR were caused by relying on 
> indirect inclusion of stubRoutines.hpp.

Yes, if something is using the definitions from the header, that header should 
be included directly. So, the patch is just adding the `#include 
"compiler/compiler_globals_pd.hpp"` then, right?

-------------

PR: https://git.openjdk.java.net/jdk/pull/1894

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