[all-commits] [llvm/llvm-project] 9e759f: [AArch64] Fix fptoi/itofp for bf16

[David Majnemer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9e759f3523e9e7fa955e4af58a6b4f63634dcb24
      https://github.com/llvm/llvm-project/commit/9e759f3523e9e7fa955e4af58a6b4f63634dcb24
  Author: David Majnemer <david.majnemer at gmail.com>
  Date:   2024-03-06 (Wed, 06 Mar 2024)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64FastISel.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/arm64-convert-v4f64.ll
    M llvm/test/CodeGen/AArch64/arm64-fast-isel-conversion-fallback.ll
    M llvm/test/CodeGen/AArch64/cvt-fp-int-fp.ll
    M llvm/test/CodeGen/AArch64/itofp.ll

  Log Message:
  -----------
  [AArch64] Fix fptoi/itofp for bf16

There were a number of issues that needed to be addressed:
- i64 to bf16 did not correctly round
- strict rounding needed to yield a chain
- fastisel did not have logic to bail on bf16



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