3.1.10. Nuclei Custom Xxlvw Extension

3.1.10.1. Introduction

3.1.10.2. 扩展

使用该扩展时,需要打开 V 扩展和 xxlvw 扩展,同时该扩展只支持rv32

示例：-march=rv32imafcv_xxlvw -mabi=ilp32f

Attention

使用该扩展的相关 intrinsic 时，需要添加以下头文件:

#include <riscv_vector.h>

3.1.10.3. 支持的指令

Complex number format convert

  • vcpack.vv vd, vs2, vs1, vm

  • vcunpackr.v vd, vs2, vm

  • vcunpacki.v vd, vs2, vm

Fix point dynamic scaling operations

  • vdsmul.vv/vs vd, vs2, vs1, vm

  • vdsmacini.v vs2, vm

  • vdsmacini.s rs1,vm

  • vdsmacini.i uimm, vm

  • vdsmac.vv/vs vs2, vs1, vm

  • vdsmaco.vv/vs vd, vs2, vs1, vm

  • vlsb.v vd, vs2, vm

Complex dynamic scaling operations

  • vconj.v vd, vs2, vm

  • vdscmul.vv/vs vd, vs2, vs1, vm

  • vdscmulj.vv/vs vd, vs2, vs1, vm

  • vdscredsum.v vd, vs2, vm

  • vdscmac.vv/vs vs2, vs1, vm

  • vdscmacj.vv/vs vs2, vs1, vm

  • vdscmaco.vv/vs vd, vs2, vs1, vm

  • vdscmacjo.vv/vs vd, vs2, vs1, vm

  • vdscmacor.vv/vs vd, vs2, vs1, vm

  • vdscmacoi.vv/vs vd, vs2, vs1, vm

  • vdscmacjor.vv/vs vd, vs2, vs1, vm

  • vdscmacjoi.vv/vs vd, vs2, vs1, vm

  • vdscmulr.vv/vs vd, vs2, vs1, vm

  • vdscmuli.vv/vs vd, vs2, vs1, vm

  • vdscmuljr.vv/vs vd, vs2, vs1, vm

  • vdscmulji.vv/vs vd, vs2, vs1, vm

Dynamic scaling Reduced operation

  • vdsredsum.v vd, vs2, vm

  • vdsredsumn.vs vd, vs2, rs1

  • vdsredsumn.vi vd, vs2, uimm

  • vredmaxi.vv vd, vs2, vs1, vm

  • vredmini.vv vd, vs2, vs1, vm

Inter-element operation instructions

  • vperm.vi vd, vs2, uimm

  • vfsl.vv vd, vs2, vs1

  • vfsr.vv vd, vs2, vs1

Fast non-linear operations

  • vlnlp0.v vnlpr0, vs2

  • vlnlp1.v vnlpr1, vs2

  • vnle.vv vd, vs2, vs1, vm

  • vnle.vs vd, vs2, vs1, vm

  • vnlm.vv vd, vs2, vs1, vm

  • vnlm.vs vd, vs2, vs1, vm

Format conversion instructions

  • vfcvt.b2h.v vd, vs2

  • vfcvt.b2w.v vd, vs2

  • vfcvt.h2w.v vd, vs2

  • vfcvt.p2c.v vd, vs2

  • vfcvt.h2b.v vd, vs2

  • vfcvt.w2b.v vd, vs2

  • vfcvt.w2h.v vd, vs2

  • vfcvt.c2p.v vd, vs2

Note

这些指令的详细信息，参考 https://gitee.com/XinShengTech_riscv_xl_OpenSource/riscv-vector4wireless-extension/blob/Zvw/src/RISCV-Vector-Extension-for-Wireless.adoc

3.1.10.4. intrinsic 命名规则

rvv intrinsic 命名规则: https://github.com/riscv-non-isa/rvv-intrinsic-doc/releases/tag/v1.0.0-rc7 v-intrinsic-spec.pdf-> Chapter 6.

我们的命名规则遵循上述的命名规则,并在此基础上在前缀处添加了 _xl

3.1.10.5. Nuclei 自定义的 intrinsic

Note

每一条指令对应的intrinsic,会给出示例,全部的intrinsic请参考rvv intrinsic 命名规则和示例进行构建。

下文出现的sew指的是指令支持的数据类型的宽度,full_preds 指的是intrinsic函数支持的后缀形式, full 是全部都支持,包含 none(无后缀),_m,_tu,_tum,_tumu,_mu等六种形式。

  • vcpack.vv sew = 32 full_preds

vint32m1_t __riscv_xl_vcpack_vv_i32m1(vint32m1_t vs2, vint32m1_t vs1, size_t vl);
vint32m1_t __riscv_xl_vcpack_vv_i32m1_m(vbool32_t vm, vint32m1_t vs2, vint32m1_t vs1, size_t vl);
vint32m1_t __riscv_xl_vcpack_vv_i32m1_tu(vint32m1_t vd, vint32m1_t vs2, vint32m1_t vs1, size_t vl);
vint32m1_t __riscv_xl_vcpack_vv_i32m1_tum(vbool32_t vm,vint32m1_t vd, vint32m1_t vs2, vint32m1_t vs1, size_t vl);
vint32m1_t __riscv_xl_vcpack_vv_i32m1_tumu(vbool32_t vm,vint32m1_t vd, vint32m1_t vs2, vint32m1_t vs1, size_t vl);
vint32m1_t __riscv_xl_vcpack_vv_i32m1_mu(vbool32_t vm,vint32m1_t vd, vint32m1_t vs2, vint32m1_t vs1, size_t vl);

Note

后续指令对应的intrinsic,只会给出none(无后缀)的全部intrinsic,其余后缀的需要使用时,参考上面的构建规则

  • vcunpackr.v sew = 32 full_preds

vint32mf2_t __riscv_xl_vcunpackr_v_i32mf2(vint32mf2_t vs2, size_t vl);
vint32m1_t __riscv_xl_vcunpackr_v_i32m1(vint32m1_t vs2, size_t vl);
vint32m2_t __riscv_xl_vcunpackr_v_i32m2(vint32m2_t vs2, size_t vl);
vint32m4_t __riscv_xl_vcunpackr_v_i32m4(vint32m4_t vs2, size_t vl);
vint32m8_t __riscv_xl_vcunpackr_v_i32m8(vint32m8_t vs2, size_t vl);

  • vcunpacki.v sew = 32 full_preds

vint32mf2_t __riscv_xl_vcunpacki_v_i32mf2(vint32mf2_t vs2, size_t vl);
vint32m1_t  __riscv_xl_vcunpacki_v_i32m1(vint32m1_t vs2, size_t vl);
vint32m2_t  __riscv_xl_vcunpacki_v_i32m2(vint32m2_t vs2, size_t vl);
vint32m4_t  __riscv_xl_vcunpacki_v_i32m4(vint32m4_t vs2, size_t vl);
vint32m8_t  __riscv_xl_vcunpacki_v_i32m8(vint32m8_t vs2, size_t vl);

  • vdsmul.vv sew = 8/16/32 full_preds

vint8mf8_t __riscv_xl_vdscmul_vv_i8mf8(vint8mf8_t vs2, vint8mf8_t vs1, size_t vl);
vint8mf4_t __riscv_xl_vdscmul_vv_i8mf4(vint8mf4_t vs2, vint8mf4_t vs1, size_t vl);
vint8mf2_t __riscv_xl_vdscmul_vv_i8mf2(vint8mf2_t vs2, vint8mf2_t vs1, size_t vl);
vint8m1_t __riscv_xl_vdscmul_vv_i8m1(vint8m1_t vs2, vint8m1_t vs1, size_t vl);
vint8m2_t __riscv_xl_vdscmul_vv_i8m2(vint8m2_t vs2, vint8m2_t vs1, size_t vl);
vint8m4_t __riscv_xl_vdscmul_vv_i8m4(vint8m4_t vs2, vint8m4_t vs1, size_t vl);
vint8m8_t __riscv_xl_vdscmul_vv_i8m8(vint8m8_t vs2, vint8m8_t vs1, size_t vl);
vint16mf4_t __riscv_xl_vdscmul_vv_i16mf4(vint16mf4_t vs2, vint16mf4_t vs1, size_t vl);
vint16mf2_t __riscv_xl_vdscmul_vv_i16mf2(vint16mf2_t vs2, vint16mf2_t vs1, size_t vl);
vint16m1_t __riscv_xl_vdscmul_vv_i16m1(vint16m1_t vs2, vint16m1_t vs1, size_t vl);
vint16m2_t __riscv_xl_vdscmul_vv_i16m2(vint16m2_t vs2, vint16m2_t vs1, size_t vl);
vint16m4_t __riscv_xl_vdscmul_vv_i16m4(vint16m4_t vs2, vint16m4_t vs1, size_t vl);
vint16m8_t __riscv_xl_vdscmul_vv_i16m8(vint16m8_t vs2, vint16m8_t vs1, size_t vl);
vint32mf2_t __riscv_xl_vdscmul_vv_i32mf2(vint32mf2_t vs2, vint32mf2_t vs1, size_t vl);
vint32m1_t __riscv_xl_vdscmul_vv_i32m1(vint32m1_t vs2, vint32m1_t vs1, size_t vl);
vint32m2_t __riscv_xl_vdscmul_vv_i32m2(vint32m2_t vs2, vint32m2_t vs1, size_t vl);
vint32m4_t __riscv_xl_vdscmul_vv_i32m4(vint32m4_t vs2, vint32m4_t vs1, size_t vl);
vint32m8_t __riscv_xl_vdscmul_vv_i32m8(vint32m8_t vs2, vint32m8_t vs1, size_t vl);

  • vdsmul.vs sew = 8/16/32 full_preds

vint8mf8_t __riscv_xl_vdscmul_vs_i8mf8_i8mf8(vint8mf8_t vs2, vint8mf8_t vs1, size_t vl);
vint8mf4_t __riscv_xl_vdscmul_vs_i8mf4_i8mf4(vint8mf4_t vs2, vint8mf4_t vs1, size_t vl);
vint8mf2_t __riscv_xl_vdscmul_vs_i8mf2_i8mf2(vint8mf2_t vs2, vint8mf2_t vs1, size_t vl);
vint8m1_t __riscv_xl_vdscmul_vs_i8m1_i8m1(vint8m1_t vs2, vint8m1_t vs1, size_t vl);
vint8m2_t __riscv_xl_vdscmul_vs_i8m2_i8m2(vint8m2_t vs2, vint8m2_t vs1, size_t vl);
vint8m4_t __riscv_xl_vdscmul_vs_i8m4_i8m4(vint8m4_t vs2, vint8m4_t vs1, size_t vl);
vint8m8_t __riscv_xl_vdscmul_vs_i8m8_i8m8(vint8m8_t vs2, vint8m8_t vs1, size_t vl);
vint16mf4_t __riscv_xl_vdscmul_vs_i16mf4_i16mf4(vint16mf4_t vs2, vint16mf4_t vs1, size_t vl);
vint16mf2_t __riscv_xl_vdscmul_vs_i16mf2_i16mf2(vint16mf2_t vs2, vint16mf2_t vs1, size_t vl);
vint16m1_t __riscv_xl_vdscmul_vs_i16m1_i16m1(vint16m1_t vs2, vint16m1_t vs1, size_t vl);
vint16m2_t __riscv_xl_vdscmul_vs_i16m2_i16m2(vint16m2_t vs2, vint16m2_t vs1, size_t vl);
vint16m4_t __riscv_xl_vdscmul_vs_i16m4_i16m4(vint16m4_t vs2, vint16m4_t vs1, size_t vl);
vint16m8_t __riscv_xl_vdscmul_vs_i16m8_i16m8(vint16m8_t vs2, vint16m8_t vs1, size_t vl);
vint32mf2_t __riscv_xl_vdscmul_vs_i32mf2_i32mf2(vint32mf2_t vs2, vint32mf2_t vs1, size_t vl);
vint32m1_t __riscv_xl_vdscmul_vs_i32m1_i32m1(vint32m1_t vs2, vint32m1_t vs1, size_t vl);
vint32m2_t __riscv_xl_vdscmul_vs_i32m2_i32m2(vint32m2_t vs2, vint32m2_t vs1, size_t vl);
vint32m4_t __riscv_xl_vdscmul_vs_i32m4_i32m4(vint32m4_t vs2, vint32m4_t vs1, size_t vl);
vint32m8_t __riscv_xl_vdscmul_vs_i32m8_i32m8(vint32m8_t vs2, vint32m8_t vs1, size_t vl);

  • vdsmacini.v sew = 8/16/32 none_m_preds[none,_m]

vint8mf8_t __riscv_xl_vdsmacini_v_i8mf8(vint8mf8_t vs2, size_t vl);
vint8mf4_t __riscv_xl_vdsmacini_v_i8mf4(vint8mf4_t vs2, size_t vl);
vint8mf2_t __riscv_xl_vdsmacini_v_i8mf2(vint8mf2_t vs2, size_t vl);
vint8m1_t __riscv_xl_vdsmacini_v_i8m1(vint8m1_t vs2, size_t vl);
vint8m2_t __riscv_xl_vdsmacini_v_i8m2(vint8m2_t vs2, size_t vl);
vint8m4_t __riscv_xl_vdsmacini_v_i8m4(vint8m4_t vs2, size_t vl);
vint8m8_t __riscv_xl_vdsmacini_v_i8m8(vint8m8_t vs2, size_t vl);
vint16mf4_t __riscv_xl_vdsmacini_v_i16mf4(vint16mf4_t vs2, size_t vl);
vint16mf2_t __riscv_xl_vdsmacini_v_i16mf2(vint16mf2_t vs2, size_t vl);
vint16m1_t __riscv_xl_vdsmacini_v_i16m1(vint16m1_t vs2, size_t vl);
vint16m2_t __riscv_xl_vdsmacini_v_i16m2(vint16m2_t vs2, size_t vl);
vint16m4_t __riscv_xl_vdsmacini_v_i16m4(vint16m4_t vs2, size_t vl);
vint16m8_t __riscv_xl_vdsmacini_v_i16m8(vint16m8_t vs2, size_t vl);
vint32mf2_t __riscv_xl_vdsmacini_v_i32mf2(vint32mf2_t vs2, size_t vl);
vint32m1_t  __riscv_xl_vdsmacini_v_i32m1(vint32m1_t vs2, size_t vl);
vint32m2_t  __riscv_xl_vdsmacini_v_i32m2(vint32m2_t vs2, size_t vl);
vint32m4_t  __riscv_xl_vdsmacini_v_i32m4(vint32m4_t vs2, size_t vl);
vint32m8_t  __riscv_xl_vdsmacini_v_i32m8(vint32m8_t vs2, size_t vl);

  • vdsmacini.s sew = 8/16/32 none_m_preds[none,_m]

vint8mf8_t __riscv_xl_vdsmacini_x_i8mf8(int8_t rs1, size_t vl);
vint8mf4_t __riscv_xl_vdsmacini_x_i8mf4(int8_t rs1, size_t vl);
vint8mf2_t __riscv_xl_vdsmacini_x_i8mf2(int8_t rs1, size_t vl);
vint8m1_t __riscv_xl_vdsmacini_x_i8m1(int8_t rs1, size_t vl);
vint8m2_t __riscv_xl_vdsmacini_x_i8m2(int8_t rs1, size_t vl);
vint8m4_t __riscv_xl_vdsmacini_x_i8m4(int8_t rs1, size_t vl);
vint8m8_t __riscv_xl_vdsmacini_x_i8m8(int8_t rs1, size_t vl);
vint16mf4_t __riscv_xl_vdsmacini_x_i16mf4(int16_t rs1, size_t vl);
vint16mf2_t __riscv_xl_vdsmacini_x_i16mf2(int16_t rs1, size_t vl);
vint16m1_t __riscv_xl_vdsmacini_x_i16m1(int16_t rs1, size_t vl);
vint16m2_t __riscv_xl_vdsmacini_x_i16m2(int16_t rs1, size_t vl);
vint16m4_t __riscv_xl_vdsmacini_x_i16m4(int16_t rs1, size_t vl);
vint16m8_t __riscv_xl_vdsmacini_x_i16m8(int16_t rs1, size_t vl);
vint32mf2_t __riscv_xl_vdsmacini_x_i32mf2(int32_t rs1, size_t vl);
vint32m1_t __riscv_xl_vdsmacini_x_i32m1(int32_t rs1, size_t vl);
vint32m2_t __riscv_xl_vdsmacini_x_i32m2(int32_t rs1, size_t vl);
vint32m4_t __riscv_xl_vdsmacini_x_i32m4(int32_t rs1, size_t vl);
vint32m8_t __riscv_xl_vdsmacini_x_i32m8(int32_t rs1, size_t vl);

  • vdsmac.vv/vs sew = 8/16/32 none_m_preds[none,_m]

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdsmac 即可。

  • vdsmaco.vv/vs sew = 8/16/32 full_preds

Tip

同上,只需要将 vdsmul 替换为 vdsmaco 即可

  • vlsb.v sew = 8/16/32 full_preds

Tip

intrinsic 的名字参考 vdsmacini.v intrinsic 的名字,只需要将 vdsmacini 替换为 vlsb 即可。

  • vconj.v sew = 8/16/32 full_preds

Tip

intrinsic 的名字参考 vdsmacini.v intrinsic 的名字,只需要将 vdsmacini 替换为 vconj 即可。

  • vdscmul.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmul 即可。

  • vdscmulj.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmulj 即可。

  • vdscredsum.v sew = 8/16/32 full_preds

Tip

intrinsic 的名字参考 vdsmacini.v intrinsic 的名字,只需要将 vdsmacini 替换为 vdscredsum 即可。

  • vdscmac.vv/vs sew = 8/16/32 none_m_preds[none,_m]

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmac 即可。

  • vdscmacj.vv/vs sew = 8/16/32 none_m_preds[none,_m]

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmacj 即可。

  • vdscmaco.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmaco 即可。

  • vdscmacjo.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmacjo 即可。

  • vdscmacor.vv sew = 32 full_preds

vint32mf2_t __riscv_xl_vdscmacor_vv_i32mf2(vint32mf2_t vs2, vint32mf2_t vs1, size_t vl);
vint32m1_t __riscv_xl_vdscmacor_vv_i32m1(vint32m1_t vs2, vint32m1_t vs1, size_t vl);
vint32m2_t __riscv_xl_vdscmacor_vv_i32m2(vint32m2_t vs2, vint32m2_t vs1, size_t vl);
vint32m4_t __riscv_xl_vdscmacor_vv_i32m4(vint32m4_t vs2, vint32m4_t vs1, size_t vl);
vint32m8_t __riscv_xl_vdscmacor_vv_i32m8(vint32m8_t vs2, vint32m8_t vs1, size_t vl);

  • vdscmacor.vs sew = 32 full_preds

vint32mf2_t __riscv_xl_vdscmacor_vs_i32mf2_i32mf2(vint32mf2_t vs2, vint32mf2_t vs1, size_t vl);
vint32m1_t __riscv_xl_vdscmacor_vs_i32m1_i32m1(vint32m1_t vs2, vint32m1_t vs1, size_t vl);
vint32m2_t __riscv_xl_vdscmacor_vs_i32m2_i32m2(vint32m2_t vs2, vint32m2_t vs1, size_t vl);
vint32m4_t __riscv_xl_vdscmacor_vs_i32m4_i32m4(vint32m4_t vs2, vint32m4_t vs1, size_t vl);
vint32m8_t __riscv_xl_vdscmacor_vs_i32m8_i32m8(vint32m8_t vs2, vint32m8_t vs1, size_t vl);

  • vdscmacoi.vv/vs sew = 32 full_preds

Tip

intrinsic 的名字 参考 vdscmacor.vv/vs intrinsic 的名字,只需要将 vdscmacor 替换为 vdscmacoi 即可。

  • vdscmacjor.vv/vs sew = 32 full_preds

Tip

intrinsic 的名字 参考 vdscmacor.vv/vs intrinsic 的名字,只需要将 vdscmacor 替换为 vdscmacjor 即可。

  • vdscmacjoi.vv/vs sew = 32 full_preds

Tip

intrinsic 的名字 参考 vdscmacor.vv/vs intrinsic 的名字,只需要将 vdscmacor 替换为 vdscmacjoi 即可。

  • vdscmulr.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmulr 即可。

  • vdscmuli.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmuli 即可。

  • vdscmuljr.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmuljr 即可。

  • vdscmulji.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vdscmulji 即可。

  • vdsredsum.v sew = 8/16/32 full_preds

Tip

intrinsic 的名字参考 vdsmacini.v intrinsic 的名字,只需要将 vdsmacini 替换为 vdsredsum 即可。

  • vdsredsumn.vs vd, vs2, rs1 sew = 8/16/32 none_tu_preds

vint8mf8_t __riscv_xl_vdsredsumn_vx_i8mf8(vint8mf8_t vs2, int8_t rs1, size_t vl);
vint8mf4_t __riscv_xl_vdsredsumn_vx_i8mf4(vint8mf4_t vs2, int8_t rs1, size_t vl);
vint8mf2_t __riscv_xl_vdsredsumn_vx_i8mf2(vint8mf2_t vs2, int8_t rs1, size_t vl);
vint8m1_t __riscv_xl_vdsredsumn_vx_i8m1(vint8m1_t vs2, int8_t rs1, size_t vl);
vint8m2_t __riscv_xl_vdsredsumn_vx_i8m2(vint8m2_t vs2, int8_t rs1, size_t vl);
vint8m4_t __riscv_xl_vdsredsumn_vx_i8m4(vint8m4_t vs2, int8_t rs1, size_t vl);
vint8m8_t __riscv_xl_vdsredsumn_vx_i8m8(vint8m8_t vs2, int8_t rs1, size_t vl);
vint16mf4_t __riscv_xl_vdsredsumn_vx_i16mf4(vint16mf4_t vs2, int16_t rs1, size_t vl);
vint16mf2_t __riscv_xl_vdsredsumn_vx_i16mf2(vint16mf2_t vs2, int16_t rs1, size_t vl);
vint16m1_t __riscv_xl_vdsredsumn_vx_i16m1(vint16m1_t vs2, int16_t rs1, size_t vl);
vint16m2_t __riscv_xl_vdsredsumn_vx_i16m2(vint16m2_t vs2, int16_t rs1, size_t vl);
vint16m4_t __riscv_xl_vdsredsumn_vx_i16m4(vint16m4_t vs2, int16_t rs1, size_t vl);
vint16m8_t __riscv_xl_vdsredsumn_vx_i16m8(vint16m8_t vs2, int16_t rs1, size_t vl);
vint32mf2_t __riscv_xl_vdsredsumn_vx_i32mf2(vint32mf2_t vs2, int32_t rs1, size_t vl);
vint32m1_t __riscv_xl_vdsredsumn_vx_i32m1(vint32m1_t vs2, int32_t rs1, size_t vl);
vint32m2_t __riscv_xl_vdsredsumn_vx_i32m2(vint32m2_t vs2, int32_t rs1, size_t vl);
vint32m4_t __riscv_xl_vdsredsumn_vx_i32m4(vint32m4_t vs2, int32_t rs1, size_t vl);
vint32m8_t __riscv_xl_vdsredsumn_vx_i32m8(vint32m8_t vs2, int32_t rs1, size_t vl);

  • vdsredsumn.vi vd, vs2, uimm sew = 8/16/32 none_tu_preds

Tip

intrinsic 的名字参考 vdsredsumn.vs intrinsic 的名字,只需要将 _vx 替换为 _vi 即可。 vdsredsumn.vs/vi 指令的rs1和uimm的值必须是整数[1,2,3,4]之内的。

  • vredmaxi.vv sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv intrinsic 的名字,只需要将 vdsmul 替换为 vredmaxi 即可。

  • vredmini.vv sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv intrinsic 的名字,只需要将 vdsmul 替换为 vredmini 即可。

  • vperm.vi sew = 8/16/32 none_tu_preds

vint8mf8_t __riscv_xl_vperm_vi_i8mf8(vint8mf8_t vs2, int8_t rs1, size_t vl);
vint8mf4_t __riscv_xl_vperm_vi_i8mf4(vint8mf4_t vs2, int8_t rs1, size_t vl);
vint8mf2_t __riscv_xl_vperm_vi_i8mf2(vint8mf2_t vs2, int8_t rs1, size_t vl);
vint8m1_t __riscv_xl_vperm_vi_i8m1(vint8m1_t vs2, int8_t rs1, size_t vl);
vint8m2_t __riscv_xl_vperm_vi_i8m2(vint8m2_t vs2, int8_t rs1, size_t vl);
vint8m4_t __riscv_xl_vperm_vi_i8m4(vint8m4_t vs2, int8_t rs1, size_t vl);
vint8m8_t __riscv_xl_vperm_vi_i8m8(vint8m8_t vs2, int8_t rs1, size_t vl);
vint16mf4_t __riscv_xl_vperm_vi_i16mf4(vint16mf4_t vs2, int16_t rs1, size_t vl);
vint16mf2_t __riscv_xl_vperm_vi_i16mf2(vint16mf2_t vs2, int16_t rs1, size_t vl);
vint16m1_t __riscv_xl_vperm_vi_i16m1(vint16m1_t vs2, int16_t rs1, size_t vl);
vint16m2_t __riscv_xl_vperm_vi_i16m2(vint16m2_t vs2, int16_t rs1, size_t vl);
vint16m4_t __riscv_xl_vperm_vi_i16m4(vint16m4_t vs2, int16_t rs1, size_t vl);
vint16m8_t __riscv_xl_vperm_vi_i16m8(vint16m8_t vs2, int16_t rs1, size_t vl);
vint32mf2_t __riscv_xl_vperm_vi_i32mf2(vint32mf2_t vs2, int32_t rs1, size_t vl);
vint32m1_t __riscv_xl_vperm_vi_i32m1(vint32m1_t vs2, int32_t rs1, size_t vl);
vint32m2_t __riscv_xl_vperm_vi_i32m2(vint32m2_t vs2, int32_t rs1, size_t vl);
vint32m4_t __riscv_xl_vperm_vi_i32m4(vint32m4_t vs2, int32_t rs1, size_t vl);
vint32m8_t __riscv_xl_vperm_vi_i32m8(vint32m8_t vs2, int32_t rs1, size_t vl);

  • vfsl.vv sew = 8/16/32 none_tu_preds

Tip

intrinsic 的名字 参考 vdsmul.vv intrinsic 的名字,只需要将 vdsmul 替换为 vfsl 即可。

  • vfsr.vv sew = 8/16/32 none_tu_preds

Tip

intrinsic 的名字 参考 vdsmul.vv intrinsic 的名字,只需要将 vdsmul 替换为 vfsr 即可。

  • vlnlp0.v/vlnlp1.v sew = 8/16/32 none_preds

该指令的intrinsic的使用需要满足以下关系

当VLEN=128时，LMUL=8

当VLEN=256时，LMUL=4

当VLEN=512时，LMUL=2

当VLEN=1024时，LMUL=1

编译器可通过 -march=*_zvl${vlen}b 来控制vlen的长度，其中 vlen 可取值{128，256，512，1024，…}等，默认不指定的情况下是128

_zvl1024b 以下intrinsic可以使用

vint8m1_t __riscv_xl_vlnlp0_v_i8m1(vint8m1_t vs, size_t vl);

vint16m1_t __riscv_xl_vlnlp0_v_i16m1(vint16m1_t vs, size_t vl);

vint32m1_t __riscv_xl_vlnlp0_v_i32m1(vint32m1_t vs, size_t vl);

vint8m1_t __riscv_xl_vlnlp1_v_i8m1(vint8m1_t vs, size_t vl);

vint16m1_t __riscv_xl_vlnlp1_v_i16m1(vint16m1_t vs, size_t vl);

vint32m1_t __riscv_xl_vlnlp1_v_i32m1(vint32m1_t vs, size_t vl);

_zvl512b 以下intrinsic可以使用

vint8m2_t __riscv_xl_vlnlp0_v_i8m2(vint8m2_t vs, size_t vl);

vint16m2_t __riscv_xl_vlnlp0_v_i16m2(vint16m2_t vs, size_t vl);

vint32m2_t __riscv_xl_vlnlp0_v_i32m2(vint32m2_t vs, size_t vl);

vint8m2_t __riscv_xl_vlnlp1_v_i8m2(vint8m2_t vs, size_t vl);

vint16m2_t __riscv_xl_vlnlp1_v_i16m2(vint16m2_t vs, size_t vl);

vint32m2_t __riscv_xl_vlnlp1_v_i32m2(vint32m2_t vs, size_t vl);

_zvl256b 以下intrinsic可以使用

vint8m4_t __riscv_xl_vlnlp0_v_i8m4(vint8m4_t vs, size_t vl);

vint16m4_t __riscv_xl_vlnlp0_v_i16m4(vint16m4_t vs, size_t vl);

vint32m4_t __riscv_xl_vlnlp0_v_i32m4(vint32m4_t vs, size_t vl);

vint8m4_t __riscv_xl_vlnlp1_v_i8m4(vint8m4_t vs, size_t vl);

vint16m4_t __riscv_xl_vlnlp1_v_i16m4(vint16m4_t vs, size_t vl);

vint32m4_t __riscv_xl_vlnlp1_v_i32m4(vint32m4_t vs, size_t vl);

_zvl128b 以下intrinsic可以使用

vint8m8_t __riscv_xl_vlnlp0_v_i8m8(vint8m8_t vs, size_t vl);

vint16m8_t __riscv_xl_vlnlp0_v_i16m8(vint16m8_t vs, size_t vl);

vint32m8_t __riscv_xl_vlnlp0_v_i32m8(vint32m8_t vs, size_t vl);

vint8m8_t __riscv_xl_vlnlp1_v_i8m8(vint8m8_t vs, size_t vl);

vint16m8_t __riscv_xl_vlnlp1_v_i16m8(vint16m8_t vs, size_t vl);

vint32m8_t __riscv_xl_vlnlp1_v_i32m8(vint32m8_t vs, size_t vl);

Tip

在使用上述intrinsic的时候，如果遇到以下这种 unrecognizable insn 错误：

vlnlp_m1.c: In function 'test_vlnlp0_v_i8m1':
vlnlp_m1.c:8:1: error: unrecognizable insn:
    8 | }
    | ^
(insn 7 4 11 2 (set (reg:RVVM1QI 134 [ <retval> ])
        (if_then_else:RVVM1QI (unspec:RVVMF8BI [
                    (const_vector:RVVMF8BI repeat [
                            (const_int 1 [0x1])
                        ])
                    (reg/v:SI 136 [ vl ])
                    (const_int 2 [0x2]) repeated x2
                    (const_int 0 [0])
                    (reg:SI 66 vl)
                    (reg:SI 67 vtype)
                ] UNSPEC_VPREDICATE)
            (unspec:RVVM1QI [
                    (reg/v:RVVM1QI 135 [ vs ])
                ] UNSPEC_VLNLP0)
            (unspec:RVVM1QI [
                    (reg:SI 0 zero)
                ] UNSPEC_VUNDEF))) "vlnlp_m1.c":7:10 -1
    (nil))
during RTL pass: vregs
vlnlp_m1.c:8:1: internal compiler error: in extract_insn, at recog.cc:2812
0x7f8636076082 __libc_start_main
        ../csu/libc-start.c:308
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

可能就是vlen长度和intrinsic使用时的lmul没有对应导致的

  • vnle.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vnle 即可。

  • vnlm.vv/vs sew = 8/16/32 full_preds

Tip

intrinsic 的名字 参考 vdsmul.vv/vs intrinsic 的名字,只需要将 vdsmul 替换为 vnlm 即可。

  • vfcvt_b2h.v none_tu_preds

vint16mf4_t __riscv_xl_vfcvt_b2h_v_i16mf4(vint8mf8_t vs2, size_t vl);
vint16mf2_t __riscv_xl_vfcvt_b2h_v_i16mf2(vint8mf4_t vs2, size_t vl);
vint16m1_t __riscv_xl_vfcvt_b2h_v_i16m1(vint8mf2_t vs2, size_t vl);
vint16m2_t __riscv_xl_vfcvt_b2h_v_i16m2(vint8m1_t vs2, size_t vl);
vint16m4_t __riscv_xl_vfcvt_b2h_v_i16m4(vint8m2_t vs2, size_t vl);
vint16m8_t __riscv_xl_vfcvt_b2h_v_i16m8(vint8m4_t vs2, size_t vl);

  • vfcvt_b2w.v none_tu_preds

vint32mf2_t __riscv_xl_vfcvt_b2w_v_i32mf2(vint8mf8_t vs2, size_t vl);
vint32m1_t __riscv_xl_vfcvt_b2w_v_i32m1(vint8mf4_t vs2, size_t vl);
vint32m2_t __riscv_xl_vfcvt_b2w_v_i32m2(vint8mf2_t vs2, size_t vl);
vint32m4_t __riscv_xl_vfcvt_b2w_v_i32m4(vint8m1_t vs2, size_t vl);
vint32m8_t __riscv_xl_vfcvt_b2w_v_i32m8(vint8m2_t vs2, size_t vl);

  • vfcvt_h2w.v none_tu_preds

vint32mf2_t __riscv_xl_vfcvt_h2w_v_i32mf2(vint16mf4_t vs2, size_t vl);
vint32m1_t __riscv_xl_vfcvt_h2w_v_i32m1(vint16mf2_t vs2, size_t vl);
vint32m2_t __riscv_xl_vfcvt_h2w_v_i32m2(vint16m1_t vs2, size_t vl);
vint32m4_t __riscv_xl_vfcvt_h2w_v_i32m4(vint16m2_t vs2, size_t vl);
vint32m8_t __riscv_xl_vfcvt_h2w_v_i32m8(vint16m4_t vs2, size_t vl);

  • vfcvt_p2c.v none_tu_preds

vint32mf2_t __riscv_xl_vfcvt_p2c_v_i32mf2(vint16mf4_t vs2, size_t vl);
vint32m1_t __riscv_xl_vfcvt_p2c_v_i32m1(vint16mf2_t vs2, size_t vl);
vint32m2_t __riscv_xl_vfcvt_p2c_v_i32m2(vint16m1_t vs2, size_t vl);
vint32m4_t __riscv_xl_vfcvt_p2c_v_i32m4(vint16m2_t vs2, size_t vl);
vint32m8_t __riscv_xl_vfcvt_p2c_v_i32m8(vint16m4_t vs2, size_t vl);

  • vfcvt.h2b.v none_tu_preds

vint8mf8_t __riscv_xl_vfcvt_h2b_v_i8mf8(vint16mf4_t vs2, size_t vl);
vint8mf4_t __riscv_xl_vfcvt_h2b_v_i8mf4(vint16mf2_t vs2, size_t vl);
vint8mf2_t __riscv_xl_vfcvt_h2b_v_i8mf2(vint16m1_t vs2, size_t vl);
vint8m1_t __riscv_xl_vfcvt_h2b_v_i8m1(vint16m2_t vs2, size_t vl);
vint8m2_t __riscv_xl_vfcvt_h2b_v_i8m2(vint16m4_t vs2, size_t vl);
vint8m4_t __riscv_xl_vfcvt_h2b_v_i8m4(vint16m8_t vs2, size_t vl);

  • vfcvt.w2b.v none_tu_preds

vint8mf8_t __riscv_xl_vfcvt_w2b_v_i8mf8(vint32mf2_t vs2, size_t vl);
vint8mf4_t __riscv_xl_vfcvt_w2b_v_i8mf4(vint32m1_t vs2, size_t vl);
vint8mf2_t __riscv_xl_vfcvt_w2b_v_i8mf2(vint32m2_t vs2, size_t vl);
vint8m1_t __riscv_xl_vfcvt_w2b_v_i8m1(vint32m4_t vs2, size_t vl);
vint8m2_t __riscv_xl_vfcvt_w2b_v_i8m2(vint32m8_t vs2, size_t vl);

  • vfcvt.w2h.v none_tu_preds

vint16mf4_t __riscv_xl_vfcvt_w2h_v_i16mf4(vint32mf2_t vs2, size_t vl);
vint16mf2_t __riscv_xl_vfcvt_w2h_v_i16mf2(vint32m1_t vs2, size_t vl);
vint16m1_t __riscv_xl_vfcvt_w2h_v_i16m1(vint32m2_t vs2, size_t vl);
vint16m2_t __riscv_xl_vfcvt_w2h_v_i16m2(vint32m4_t vs2, size_t vl);
vint16m4_t __riscv_xl_vfcvt_w2h_v_i16m4(vint32m8_t vs2, size_t vl);

  • vfcvt.c2p.v none_tu_preds

vint16mf4_t __riscv_xl_vfcvt_c2p_v_i16mf4(vint32mf2_t vs2, size_t vl);
vint16mf2_t __riscv_xl_vfcvt_c2p_v_i16mf2(vint32m1_t vs2, size_t vl);
vint16m1_t __riscv_xl_vfcvt_c2p_v_i16m1(vint32m2_t vs2, size_t vl);
vint16m2_t __riscv_xl_vfcvt_c2p_v_i16m2(vint32m4_t vs2, size_t vl);
vint16m4_t __riscv_xl_vfcvt_c2p_v_i16m4(vint32m8_t vs2, size_t vl);

3.1.10.6. Examples