[all-commits] [llvm/llvm-project] 224d29: [1/7][Clang][RISCV] Remove default tail-undisturbe...

[Yueh-Ting (eop) Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 224d29e6f54320c927d754b08d81237fc9ef5936
      https://github.com/llvm/llvm-project/commit/224d29e6f54320c927d754b08d81237fc9ef5936
  Author: eopXD <yueh.ting.chen at gmail.com>
  Date:   2023-01-23 (Mon, 23 Jan 2023)

  Changed paths:
    M clang/include/clang/Basic/riscv_vector.td
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vfredmax.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vfredmin.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vfredosum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vfredusum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vfwredosum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vfwredusum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vredand.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vredmax.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vredmaxu.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vredmin.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vredminu.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vredor.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vredsum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vredxor.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vwredsum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/non-overloaded/vwredsumu.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vfredmax.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vfredmin.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vfredosum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vfredusum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vfwredosum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vfwredusum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vredand.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vredmax.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vredmaxu.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vredmin.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vredminu.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vredor.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vredsum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vredxor.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vwredsum.c
    M clang/test/CodeGen/RISCV/rvv-intrinsics-autogenerated/non-policy/overloaded/vwredsumu.c

  Log Message:
  -----------
  [1/7][Clang][RISCV] Remove default tail-undisturbed for vector reduction intrinsics

The destination parameter is removed for non-policy unmasked intrinsics,
they are now tail agnostic. The non-policy masked intrinsics are tail
agnostic and masked undisturbed, just like normal instructions like
vadd.

This is the 1st commit of a patch-set that aims to remove the
`IsPrototypeDefaultTU` special case for the rvv-intrinsics.

The patch-set work towards the simplification proposal [0] of Nick
Knight, the plan is that after this patch-set, all non-policy
intrinsics will be aligned with default policy behavior of tail
agnostic and mask undisturbed. Then the next patch-set will aim
towards changing non-policy intrinsics to tail agnostic and mask
agnostic.

[0] https://gist.github.com/nick-knight/6cb0b74b351a25323dfb1821d3a269b9

Pull Request: riscv-non-isa/rvv-intrinsic-doc#186

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D140895