[v4,00/12] tcg/riscv: Add support for vector

Message

LIU Zhiwei Sept. 11, 2024, 1:26 p.m. UTC

From: TANG Tiancheng <[e-mail]>

This patch set introduces support for the RISC-V vector extension
in TCG backend for RISC-V targets.

v4:
  1. Move the implementation of roti/s/v_vec from tcg_expand_vec_op to
tcg_out_vec_op, not just shi_vec.

  2. Put shi and shs/v in the same patch.

  3. Put load/store and vset in the same patch.

  4. Change riscv_vlenb to riscv_lg2_vlenb and simplify the probe.

  5. Provide stubs for the required functions and merge the functions'
usage and definitions into one patch.

  6. Replace riscv_host_vtype with riscv_cur_vsew and riscv_cur_type,
and improve the setting of vtype.

  7. Call separate functions(tcg_out_vec_ldst and tcg_out_ldst)
in tcg_out_ld and tcg_out_st.

  8. Optimize dupi_vec for cases where arg = 0 and arg = -1.

  9. Use tcg_out_cmpsel instead of the switch statement.

  10. Ensure that every single patch can compile.

  11. Remove "tcg/op-gvec: Fix iteration step in 32-bit operation" as
it has been incorporated into "tcg: Improve support for cmpsel_vec"
(https://lists.gnu.org/archive/html/qemu-devel/2024-09/msg01281.html).
This patch set depends on that patch set.

v3:
  https://lists.gnu.org/archive/html/qemu-riscv/2024-09/msg00060.html

v2:
  https://lists.gnu.org/archive/html/qemu-riscv/2024-08/msg00679.html

v1:
  https://lists.gnu.org/archive/html/qemu-riscv/2024-08/msg00205.html

Swung0x48 (1):
  tcg/riscv: Add basic support for vector

TANG Tiancheng (11):
  util: Add RISC-V vector extension probe in cpuinfo
  tcg/riscv: Add vset{i}vli and ld/st vec ops
  tcg/riscv: Implement vector mov/dup{m/i}
  tcg/riscv: Add support for basic vector opcodes
  tcg/riscv: Implement vector cmp/cmpsel ops
  tcg/riscv: Implement vector neg ops
  tcg/riscv: Implement vector sat/mul ops
  tcg/riscv: Implement vector min/max ops
  tcg/riscv: Implement vector shi/s/v ops
  tcg/riscv: Implement vector roti/v/x ops
  tcg/riscv: Enable native vector support for TCG host

 host/include/riscv/host/cpuinfo.h |   2 +
 include/tcg/tcg.h                 |   7 +
 tcg/riscv/tcg-target-con-set.h    |   7 +
 tcg/riscv/tcg-target-con-str.h    |   3 +
 tcg/riscv/tcg-target.c.inc        | 950 +++++++++++++++++++++++++++---
 tcg/riscv/tcg-target.h            |  80 +--
 tcg/riscv/tcg-target.opc.h        |  12 +
 util/cpuinfo-riscv.c              |  24 +-
 8 files changed, 966 insertions(+), 119 deletions(-)
 create mode 100644 tcg/riscv/tcg-target.opc.h