[PATCH] D120129: [NVPTX] Enhance vectorization of ld.param & st.param

[Daniil Kovalev via Phabricator via cfe-commits]

kovdan01 added a comment.

In D120129#3410479 <https://reviews.llvm.org/D120129#3410479>, @jdoerfert wrote:

> Please revert this commit. It breaks any code using the cuda.11.0.2 libdevice.bc file, the source of the `null` `nvvm.annotations` and the annotations with 5 arguments. See below.
> Once a fix is in, and a test is added, we can reapply this.
>
>   $ opt -S .../cuda-11.0.2/nvvm/libdevice/libdevice.10.bc | tail
>   !nvvm.annotations = !{!1, !2, !1, !3, !3, !3, !3, !4, !4, !3}
>   
>   !0 = !{i32 1, i32 4}
>   !1 = !{null, !"align", i32 8}
>   !2 = !{null, !"align", i32 8, !"align", i32 65544, !"align", i32 131080}
>   !3 = !{null, !"align", i32 16}
>   !4 = !{null, !"align", i32 16, !"align", i32 65552, !"align", i32 131088}
>   !5 = distinct !{!5, !6}

Got it, will revert the patch shortly. Could you please describe what do you mean by "break" in a bit more detail? Is that only about poorly designed and failing assertions in `getFunctionParamOptimizedAlign` or there are some other (maybe even functional) issues? If that's only about assertions, won't using `isKernelFunction` (as suggested in D122550 <https://reviews.llvm.org/D122550>) help?


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