yingopq wrote:

> This looks technically fine, but I'm having trouble finding a normative 
> reference for this. Is there an ABI specification for N32/N64 somewhere?
> 
> Also, what alignment does clang use for o32 with ForceEnableInt128?
> 
> https://github.com/llvm/llvm-project/blob/cb2f1619575400a402ffe11040bb927b0fa35910/clang/lib/Basic/Targets/Mips.h#L441
> 
> Possibly we need to specify the alignment in that case as well to cover that 
> option.

@nikic I checked several other arch-32 situations with ForceEnableInt128, and 
they all use `alloca i128, align 16`.
But they did not modify the target datalayout content with `i128:128`, should 
mips be consistent? 

https://github.com/llvm/llvm-project/pull/112084
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