[clang] [clang][LoongArch] Align global symbol by size (PR #101309)

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heiher wrote:

> > > This looks wrong. Preferred and ABI alignments should be set in ~Triple~. ADD: Sorry, I meant DataLayout, of course.
> > 
> > 
> > Thanks for pointing this out. How does data layout affect the alignment of constant string global variable symbols?
> 
> They will be aligned to the preferred alignment specified as Y in the "-a:X:Y" part of the data layout, IIRC.

Thanks for the explanation. I understand that data layout can set default and preferred alignment for all globals. This patch chooses alignment based on the size of global objects. Can data layout do that?

https://github.com/llvm/llvm-project/pull/101309