[PATCH] D91757: [FP128] Expand the cast operations as libcall

[Qing Shan Zhang via Phabricator via llvm-commits]

steven.zhang created this revision.
steven.zhang added reviewers: craig.topper, RKSimon, uweigand, qiucf, PowerPC.
Herald added subscribers: kbarton, hiraditya, nemanjai.
Herald added a project: LLVM.
steven.zhang requested review of this revision.

The legalizer miss to expand the cast operation(sint_to_fp, fp_to_sint, fp_extend, fp_round etc) as libcall. PowerPC need it to handle the IEEE Long double for Power8.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D91757

Files:
  llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.h
  llvm/test/CodeGen/PowerPC/f128-conv.ll
  llvm/test/CodeGen/PowerPC/f128-rounding.ll
  llvm/test/CodeGen/PowerPC/fp-strict-conv-f128.ll

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