[PATCH] D79322: [FEnv] Small fixes to implementation of flt.rounds

[Serge Pavlov via Phabricator via cfe-commits]

sepavloff created this revision.
sepavloff added reviewers: andrew.w.kaylor, kpn, craig.topper, RKSimon, asb, hfinkel.
Herald added subscribers: cfe-commits, luismarques, apazos, sameer.abuasal, pzheng, jdoerfert, s.egerton, lenary, Jim, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, MaskRay, jrtc27, niosHD, sabuasal, simoncook, johnrusso, rbar, hiraditya.
Herald added projects: clang, LLVM.

This change makes assorted correction related to the intrinsic
`llvm.flt.rounds`:

- Added documentation entry in LangRef,
- Attributes of the intrinsic changed to be in line with other functions dependent of floating-point environment,
- The intrinsic now is lowered by default into function call rather than to a constant.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D79322

Files:
  clang/include/clang/Basic/Builtins.def
  llvm/docs/LangRef.rst
  llvm/include/llvm/IR/Intrinsics.td
  llvm/include/llvm/IR/RuntimeLibcalls.def
  llvm/lib/CodeGen/IntrinsicLowering.cpp
  llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
  llvm/test/CodeGen/MSP430/flt_rounds.ll
  llvm/test/CodeGen/RISCV/flt-rounds.ll

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