[PATCH] D92715: [Clang][RISCV] Define RISC-V V builtin types

[Hsiangkai Wang via Phabricator via cfe-commits]

HsiangKai added a comment.

In D92715#2544233 <https://reviews.llvm.org/D92715#2544233>, @craig.topper wrote:

> In D92715#2544178 <https://reviews.llvm.org/D92715#2544178>, @HsiangKai wrote:
>
>> In D92715#2520925 <https://reviews.llvm.org/D92715#2520925>, @craig.topper wrote:
>>
>>> I wonder if these types should be prefixed with "__clang_" like AArch64 tuple types?
>>
>> It seems only AArch64 tuple types have "__clang_" prefix.
>
> I think the other types don't have it because they are defined by an ARM standard. See the description for https://reviews.llvm.org/D81721

It seems to use `__clang_` to differentiate tuple types and non-tuple types. The mangling rules are different between tuple types and non-tuple types in ARM. We have no mangling rules in our specification. I have a TODO item in this patch to clarify the mangling rules later.


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