[PATCH] D140599: AMDGPU: Promote array alloca if used by memmove/memcpy

[Ruiling, Song via Phabricator via llvm-commits]

ruiling marked 2 inline comments as done.
ruiling added inline comments.


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Comment at: llvm/test/CodeGen/AMDGPU/promote-alloca-array-aggregate.ll:307
+}
+
+declare void @llvm.memcpy.p5i8.p5i8.i32(ptr addrspace(5) nocapture writeonly, ptr addrspace(5) nocapture readonly, i32, i1 immarg)
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arsenm wrote:
> Another edge case to maybe test is the identity copy of the full alloca to itself
I have added a case for it, but would not bother to optimize for it as such code pattern are trivially optimized away early.


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https://reviews.llvm.org/D140599