[PATCH] D150482: [AArch64] Don't use tbl lowering if ZExt can be folded into user.

[Florian Hahn via Phabricator via llvm-commits]

fhahn marked an inline comment as done.
fhahn added inline comments.


================
Comment at: llvm/lib/Target/AArch64/AArch64ISelLowering.cpp:14461
   auto DstWidth = cast<IntegerType>(DstTy->getElementType())->getBitWidth();
+  if (DstWidth % 8 != 0 || DstWidth <= 16 || DstWidth >= 64)
+    return false;
----------------
efriedma wrote:
> Maybe just explicitly check "DstWidth != 16 && DstWidth != 32"?
The current codegen also works for like `i24` and there are existing tests for that; I left the check as is for now to avoid changing behavior unrelated to the patch


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https://reviews.llvm.org/D150482