milvus/pkg/util/distance/asm/l2_amd64.s
Gao 8a4c0d4a3f
enhance: compile go assembly with build constraints for different arch (#29515)
issue #28657 
follow https://pkg.go.dev/cmd/go#hdr-Build_constraints to compile go
assembly with different cpu arch

Signed-off-by: chasingegg <chao.gao@zilliz.com>
2023-12-28 15:40:47 +08:00

65 lines
1.4 KiB
ArmAsm

// Code generated by command: go run l2.go -out l2_amd64.s -stubs l2_stub_amd64.go. DO NOT EDIT.
#include "textflag.h"
// func L2(x []float32, y []float32) float32
// Requires: AVX, FMA3, SSE
TEXT ·L2(SB), NOSPLIT, $0-52
MOVQ x_base+0(FP), AX
MOVQ y_base+24(FP), CX
MOVQ x_len+8(FP), DX
VXORPS Y0, Y0, Y0
VXORPS Y1, Y1, Y1
VXORPS Y2, Y2, Y2
VXORPS Y3, Y3, Y3
VXORPS Y4, Y4, Y4
VXORPS Y5, Y5, Y5
VXORPS Y6, Y6, Y6
VXORPS Y7, Y7, Y7
blockloop:
CMPQ DX, $0x00000020
JL tail
VMOVUPS (AX), Y1
VMOVUPS 32(AX), Y3
VMOVUPS 64(AX), Y5
VMOVUPS 96(AX), Y7
VSUBPS (CX), Y1, Y1
VSUBPS 32(CX), Y3, Y3
VSUBPS 64(CX), Y5, Y5
VSUBPS 96(CX), Y7, Y7
VFMADD231PS Y1, Y1, Y0
VFMADD231PS Y3, Y3, Y2
VFMADD231PS Y5, Y5, Y4
VFMADD231PS Y7, Y7, Y6
ADDQ $0x00000080, AX
ADDQ $0x00000080, CX
SUBQ $0x00000020, DX
JMP blockloop
tail:
VXORPS X1, X1, X1
tailloop:
CMPQ DX, $0x00000000
JE reduce
VMOVSS (AX), X3
VSUBSS (CX), X3, X3
VFMADD231SS X3, X3, X1
ADDQ $0x00000004, AX
ADDQ $0x00000004, CX
DECQ DX
JMP tailloop
reduce:
VADDPS Y0, Y2, Y0
VADDPS Y4, Y6, Y4
VADDPS Y0, Y4, Y0
VEXTRACTF128 $0x01, Y0, X2
VADDPS X0, X2, X0
VADDPS X0, X1, X0
VHADDPS X0, X0, X0
VHADDPS X0, X0, X0
MOVSS X0, ret+48(FP)
RET