[all-commits] [llvm/llvm-project] b799b5: DAG: Gracefully diagnose missing FMA and ppcf128 e...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/dag/diagnose-missing-fma-ppcf128-libcalls
  Home:   https://github.com/llvm/llvm-project
  Commit: b799b55211dcc7f77a1e6b398a0e2a637e15c24b
      https://github.com/llvm/llvm-project/commit/b799b55211dcc7f77a1e6b398a0e2a637e15c24b
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-10-01 (Thu, 01 Oct 2026)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
    M llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
    M llvm/test/CodeGen/NVPTX/f128-no-libcall-error.ll
    A llvm/test/CodeGen/X86/ppcf128-expand-no-libcall-error.ll

  Log Message:
  -----------
  DAG: Gracefully diagnose missing FMA and ppcf128 expansion libcalls

Previously this would hit a fatal error. Legalize to poison and report
a proper context error.

Co-authored-by: Claude (Claude-Opus-4.8) <noreply at anthropic.com>



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