[cfe-dev] how to generate both IR and object file

[Jinwook Shin]

Thanks guys. Yes, it would be awesome to have this feature in the future
release.

Modifying the build environment as James suggested isn¹t an option for me
for political reasons with other teams I¹m working with.

On 6/22/14, 2:22 AM, "Alp Toker" <alp at nuanti.com> wrote:

>
>On 19/06/2014 23:38, Jinwook Shin wrote:
>> Hi,
>>
>> I use the -emit-llvm flag to generate IR files and use LTO to link them
>>together to produce the final executable. Sometimes LTO gives me
>>link-time errors, so I want to avoid using it, yet I need IR files.
>>
>> Question: Is there a way to instruct clang to generate *both* an IR
>>file and a regular object file at compile-time, and during the link
>>time, use the object files only, while leaving out the IR files?
>
>That isn't supported by the standard driver and frontend but it's a
>perfectly reasonable feature to request.
>
>It's missing mostly for historical reasons -- the frontend action
>pipeline wasn't designed to be composable, meaning you can only do one
>thing per invocation.
>
>The limitation doesn't apply if you use the clang C++ API to build a
>custom tool.
>
>Alp.
>
>
>>
>> Thanks,
>> JS
>>
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>
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