[all-commits] [llvm/llvm-project] 76eda7: [X86][BF16] Add libcall for F80 -> BF16 (#109116)

[Phoebe Wang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 76eda76f9f36646b8b393f2369359d02e24e20c8
      https://github.com/llvm/llvm-project/commit/76eda76f9f36646b8b393f2369359d02e24e20c8
  Author: Phoebe Wang <phoebe.wang at intel.com>
  Date:   2024-09-18 (Wed, 18 Sep 2024)

  Changed paths:
    M compiler-rt/lib/builtins/CMakeLists.txt
    A compiler-rt/lib/builtins/truncxfbf2.c
    M llvm/include/llvm/IR/RuntimeLibcalls.def
    M llvm/lib/CodeGen/TargetLoweringBase.cpp
    M llvm/test/CodeGen/X86/bfloat.ll

  Log Message:
  -----------
  [X86][BF16] Add libcall for F80 -> BF16 (#109116)

This fixes #108936, but the calling convention doesn't match with GCC. I
doubt we have such a lib function for now, so leave the calling
convention as is.



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