pmatos added a comment.

In D122215#4000612 <https://reviews.llvm.org/D122215#4000612>, @MoritzS wrote:

> In D122215#3998105 <https://reviews.llvm.org/D122215#3998105>, @pmatos wrote:
>
>> In D122215#3991648 <https://reviews.llvm.org/D122215#3991648>, @MoritzS 
>> wrote:
>>
>>> Thanks for the patch! I just tried it out and I think this enables many 
>>> interesting use cases for WebAssembly when using C/C++.
>>>
>>> Currently the lowering to wasm does not work when using externrefs when 
>>> compiling without optimizations. Is that intended behavior?
>>
>> I have posted a new patch that fixed this. Can you please try it again and 
>> see if it works as you expect?
>
> Thanks for the quick update, it works now!
>
> Does this affect the debugging experience of the generated wasm programs? If 
> you force mem2reg to run for all programs, no function arguments will be 
> written to the "stack" referenced by the __stack_pointer global variable 
> anymore. I don't know whether any wasm runtime actually uses that for 
> debugging, though.

That's a good point, but I don't think that's a large concern at the moment on 
the WebAssembly side. I wonder if @tlively or @sbc100 have more to add with 
respect to the current state of debugging Wasm programs nowadays.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122215/new/

https://reviews.llvm.org/D122215

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