[cfe-dev] Integrating a pass as a clang option

[Jose Luis Vázquez via cfe-dev]

Using the pass plugin infrastructure wasn't something that I had in 
mind, considering that the option to load them requires a file path and 
we also wanted it to be integrated within our compiler, but it's 
something I'll keep in mind now considering it seems to be the more 
accepted way to do it.

Kindest regards

Jose Luis

On 7/10/21 18:09, Michael Kruse wrote:
> There is a pass plugin infrastructure for such cases [1]. There is an
> example Bye pass[2] and Polly using it in-tree to see how to use it.
>
> [1] https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/Passes/PassPlugin.h
> [2] https://github.com/llvm/llvm-project/tree/main/llvm/examples/Bye
>
> Michael
>
>
> Am Do., 7. Okt. 2021 um 09:44 Uhr schrieb Jose Luis Vázquez via
> cfe-dev <cfe-dev at lists.llvm.org>:
>> Good afternoon
>>
>> I've developed a pass that I want to run directly from a clang
>> invocation by setting an option in the command line. The pass has been
>> ran through opt and tested for correctness. I've defined the option and
>> the driver can parse it but I haven't been able to trigger the execution
>> of the pass by the pass manager. Is there any particular structure I
>> need to follow to convert the flag I added in
>> include/clang/Driver/Options.td into an option parsed by the frontend?
>>
>> Kindest regards
>>
>> Jose Luis
>>
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