[PATCH] D115283: [AMDGPU] Set "amdgpu_hostcall" module flag if an AMDGPU function has calls to device lib functions that use hostcalls.

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl added a comment.

In D115283#3181128 <https://reviews.llvm.org/D115283#3181128>, @JonChesterfield wrote:

> Not exactly that. The weak symbol isn't the function name, as that gets renamed or inlined.

We discussed this before. As code object ABI use runtime metadata to represent hostcall_buffer, we need to check whether hostcall is needed by IR.

This approach will require checking asm instructions inside a function to determine whether this function requires hostcall. It is hacking for IR representation.


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  https://reviews.llvm.org/D115283/new/

https://reviews.llvm.org/D115283