[PATCH] D147732: [AMDGPU] Add f32 permlane{16, x16} builtin variants

Jeffrey Byrnes via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Thu Apr 6 12:26:38 PDT 2023


jrbyrnes added a comment.

In D147732#4249567 <https://reviews.llvm.org/D147732#4249567>, @rampitec wrote:

> Isn't it simpler to lower it to an existing int intrinsic and casts in clang?

Thanks for your comment Stas!

I think it would be ideal if clang inserted pure bitcasts for floats instead of fptoui when passed as operands to these builtins. My concern is -- Do you think we need to preserve the implicit casting behavior for compatibility?


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  https://reviews.llvm.org/D147732/new/

https://reviews.llvm.org/D147732



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