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

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


================
Comment at: llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp:1818
       (!Arg0 || Arg0->getOpcode() != Extend->getOpcode() ||
        Arg0->getOperand(0)->getType() != Extend->getOperand(0)->getType()))
     return false;
----------------
Does this code do the right thing when the "Args" includes a cast with the wrong source type?  (In this case, the source type is i16, but the type of the operand of the cast would actually be i8.)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D150482/new/

https://reviews.llvm.org/D150482