[all-commits] [llvm/llvm-project] 2db7b3: [AArch64] Add BF16 fpext and fptrunc costs. (#119524)

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2db7b314da367e1a6bf8cf34df16f9ad5ad62f5e
      https://github.com/llvm/llvm-project/commit/2db7b314da367e1a6bf8cf34df16f9ad5ad62f5e
  Author: David Green <david.green at arm.com>
  Date:   2025-01-07 (Tue, 07 Jan 2025)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/AArch64/cast.ll

  Log Message:
  -----------
  [AArch64] Add BF16 fpext and fptrunc costs. (#119524)

This expands the recently added fp16 fpext and fpround costs to bf16.
Some of the costs are taken from the rough number of instructions
needed, some are a little aspirational.
https://godbolt.org/z/bGEEd1vsW



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