[PATCH] D133834: [RISCV] Remove support for the unratified Zbt extension.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: asb, luismarques, reames.
Herald added subscribers: sunshaoce, VincentWu, luke957, StephenFan, vkmr, frasercrmck, jdoerfert, evandro, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, jrtc27, shiva0217, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar, hiraditya, arichardson.
Herald added a project: All.
craig.topper requested review of this revision.
Herald added subscribers: cfe-commits, pcwang-thead, eopXD, MaskRay.
Herald added projects: clang, LLVM.

This extension does not appear to be on its way to ratification.

Out of the unratified bitmanip extensions, this one had the
largest impact on the compiler.

Posting this patch to start a discussion about whether we should
remove these extensions. We'll talk more at the meeting this
Thursday.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133834

Files:
  clang/include/clang/Basic/BuiltinsRISCV.def
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/test/CodeGen/RISCV/rvb-intrinsics/riscv32-zbt.c
  clang/test/CodeGen/RISCV/rvb-intrinsics/riscv64-zbt.c
  llvm/docs/RISCVUsage.rst
  llvm/docs/ReleaseNotes.rst
  llvm/include/llvm/IR/IntrinsicsRISCV.td
  llvm/lib/Target/RISCV/RISCV.td
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/lib/Target/RISCV/RISCVISelLowering.h
  llvm/lib/Target/RISCV/RISCVInstrInfoZb.td
  llvm/lib/Target/RISCV/RISCVSchedRocket.td
  llvm/lib/Target/RISCV/RISCVSchedSiFive7.td
  llvm/lib/Target/RISCV/RISCVScheduleB.td
  llvm/lib/Target/RISCV/RISCVSubtarget.h
  llvm/test/CodeGen/RISCV/attributes.ll
  llvm/test/CodeGen/RISCV/div-pow2.ll
  llvm/test/CodeGen/RISCV/iabs.ll
  llvm/test/CodeGen/RISCV/neg-abs.ll
  llvm/test/CodeGen/RISCV/rv32zbt-intrinsic.ll
  llvm/test/CodeGen/RISCV/rv32zbt.ll
  llvm/test/CodeGen/RISCV/rv64zbt-intrinsic.ll
  llvm/test/CodeGen/RISCV/rv64zbt.ll
  llvm/test/CodeGen/RISCV/sadd_sat.ll
  llvm/test/CodeGen/RISCV/sadd_sat_plus.ll
  llvm/test/CodeGen/RISCV/select-and.ll
  llvm/test/CodeGen/RISCV/select-bare.ll
  llvm/test/CodeGen/RISCV/select-cc.ll
  llvm/test/CodeGen/RISCV/select-const.ll
  llvm/test/CodeGen/RISCV/select-optimize-multiple.ll
  llvm/test/CodeGen/RISCV/select-optimize-multiple.mir
  llvm/test/CodeGen/RISCV/select-or.ll
  llvm/test/CodeGen/RISCV/ssub_sat.ll
  llvm/test/CodeGen/RISCV/ssub_sat_plus.ll
  llvm/test/MC/RISCV/rv32zbt-invalid.s
  llvm/test/MC/RISCV/rv32zbt-valid.s
  llvm/test/MC/RISCV/rv64zbt-invalid.s
  llvm/test/MC/RISCV/rv64zbt-valid.s

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