[PATCH] D53594: [GlobalISel] Introduce G_BUILD_VECTOR and G_CONCAT_VECTOR opcodes

[Nicolai Hähnle via Phabricator via llvm-commits]

nhaehnle added a comment.

Are two different opcodes for this really needed? Why not a single opcode with uniformly typed operands, either scalar or vector, which concatenates the operands as an appropriately sized vector? I know there's precedent for the separation elsewhere in LLVM, but it has always seemed redundant to me personally. The code for handling the BUILD vs. CONCAT cases tends to be very similar.


Repository:
  rL LLVM

https://reviews.llvm.org/D53594