[PATCH] D108714: [AArch64][GlobalISel] Add a target-specific G_BIT opcode.

[Jessica Paquette via Phabricator via llvm-commits]

paquette created this revision.
paquette added reviewers: aemerson, jroelofs.
Herald added subscribers: hiraditya, kristof.beyls, rovka.
paquette requested review of this revision.
Herald added a project: LLVM.

This is necessary for custom-legalizing G_FCOPYSIGN.

This is equivalent to the BIT instruction (bitwise insert if true).

Add selection testcases for imported patterns.


https://reviews.llvm.org/D108714

Files:
  llvm/lib/Target/AArch64/AArch64InstrGISel.td
  llvm/test/CodeGen/AArch64/GlobalISel/select-bit.mir

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