================
@@ -1024,6 +1024,15 @@ GCNTTIImpl::instCombineIntrinsic(InstCombiner &IC,
IntrinsicInst &II) const {
}
break;
}
+ case Intrinsic::amdgcn_wavefrontsize: {
+ // TODO: this is a workaround for the pseudo-generic target one gets with
no
+ // specified mcpu, which spoofs its wave size to 64; it should be removed.
----------------
AlexVlx wrote:
I don't think that this interpretation is actually correct, if you rely on
lockstep of a full wave and you optimise around wavesize this will break in bad
ways on wave32. The current `generic` is not particularly god, but we have to
live with it for now I guess.
https://github.com/llvm/llvm-project/pull/114481
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