ChuanqiXu added a comment.

In D118586#3336865 <https://reviews.llvm.org/D118586#3336865>, @iains wrote:

> In D118586#3336612 <https://reviews.llvm.org/D118586#3336612>, @ChuanqiXu 
> wrote:
>
>> (May off the patch)
>
> I am not sure what you mean here.

I mean this comment is not related to the patch. So it doesn't mean to block 
the patch landing.

>> BTW, I know you also work on GCC frontend. I want to consultant what's your 
>> opinion to uniform the command line options between Clang and GCC. Now it 
>> looks totally different. I feel it would be a problem for clang. Since the 
>> command line between clang and gcc are basically compatible so that user who 
>> decide to use clang could turn back to use gcc whenever he want. But I am 
>> worrying that it would be a harder decision for users if them are going to 
>> use clang. Since the cost to use GCC again would be higher.
>
> We have the same objective: to keep user-facing options and functionality the 
> same between clang and GCC (easier for both user and for build systems).
> The content of this patch does not alter that. BTW GCC also keeps the module 
> name as "Primary:Parition" internally and user-facing output.  //The module 
> name in C++20 modules has no fixed mapping to the BMI/CMI filename on disk,.//

I just tested the behavior of GCC. When I compile a partition interface unit 
(let's name is `mod:part`), it would generate a file named `mod-part,gcm` under 
the directory `gcm.cache`. So I feel what GCC does here is more aggressive, it 
doesn't only choose the separator '-'. It would create an cache directory by 
default. (I am not blaming it. I like the style too. Otherwise, we need to sore 
CMI to a place by hand). What I want to say here is that GCC would replace '-' 
to ':' when maps to the filesystem. I am OK to not implement this in the series 
patch. But I hope we could get in consensus that we should implement this.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D118586/new/

https://reviews.llvm.org/D118586

_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

Reply via email to