[all-commits] [llvm/llvm-project] bfca9a: [SystemZ] Fix the cost function for vector zero ex...

[Jonas Paulsson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bfca9a0b991e33ff24a69835d7bb0e0985afc7bd
      https://github.com/llvm/llvm-project/commit/bfca9a0b991e33ff24a69835d7bb0e0985afc7bd
  Author: Jonas Paulsson <paulsson at linux.vnet.ibm.com>
  Date:   2022-06-21 (Tue, 21 Jun 2022)

  Changed paths:
    M llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/SystemZ/int-cast.ll

  Log Message:
  -----------
  [SystemZ] Fix the cost function for vector zero extend.

Zero extend of a vector is done with either a single unpack or a vector
permute, and the TTI cost function should reflect this.

Review: Ulrich Weigand