[all-commits] [llvm/llvm-project] c13436: [SDAG][NVPTX] Add TLI hook to get preferred FP->IN...

[Kevin McAfee via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c13436e516ed51bcc6f39b7b5c93d987e5fd7884
      https://github.com/llvm/llvm-project/commit/c13436e516ed51bcc6f39b7b5c93d987e5fd7884
  Author: Kevin McAfee <kmcafee at nvidia.com>
  Date:   2025-04-08 (Tue, 08 Apr 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
    M llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
    M llvm/lib/Target/NVPTX/NVPTXISelLowering.h
    A llvm/test/CodeGen/NVPTX/convert-fp-i8.ll

  Log Message:
  -----------
  [SDAG][NVPTX] Add TLI hook to get preferred FP->INT opcode (#132470)

Extract the logic for choosing FP_TO_UINT vs FP_TO_SINT opcodes into a
TLI hook. This hook can be overridden by targets that prefer not to use
the default behavior of replacing FP_TO_UINT with FP_TO_SINT when both
are custom.
Implement an override for NVPTX to only change opcode when
FP_TO_UINT is not legal and FP_TO_SINT is legal.



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