475a241446
Intended to address an asmdecl error. [amd64] Butterfly: use of unnamed argument 0(FP); offset 0 is x0+0(FP) Updates #24
63 lines
1.4 KiB
ArmAsm
63 lines
1.4 KiB
ArmAsm
// Code generated by command: go run asm.go -out dot.s -stubs stub.go. DO NOT EDIT.
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#include "textflag.h"
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// func Dot(x []float32, y []float32) float32
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TEXT ·Dot(SB), NOSPLIT, $0-52
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MOVQ x_base+0(FP), AX
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MOVQ y_base+24(FP), CX
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MOVQ x_len+8(FP), DX
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VXORPS Y0, Y0, Y0
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VXORPS Y1, Y1, Y1
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VXORPS Y2, Y2, Y2
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VXORPS Y3, Y3, Y3
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VXORPS Y4, Y4, Y4
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VXORPS Y5, Y5, Y5
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blockloop:
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CMPQ DX, $0x00000030
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JL tail
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VMOVUPS (AX), Y6
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VMOVUPS 32(AX), Y7
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VMOVUPS 64(AX), Y8
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VMOVUPS 96(AX), Y9
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VMOVUPS 128(AX), Y10
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VMOVUPS 160(AX), Y11
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VFMADD231PS (CX), Y6, Y0
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VFMADD231PS 32(CX), Y7, Y1
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VFMADD231PS 64(CX), Y8, Y2
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VFMADD231PS 96(CX), Y9, Y3
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VFMADD231PS 128(CX), Y10, Y4
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VFMADD231PS 160(CX), Y11, Y5
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ADDQ $0x000000c0, AX
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ADDQ $0x000000c0, CX
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SUBQ $0x00000030, DX
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JMP blockloop
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tail:
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VXORPS X12, X12, X12
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tailloop:
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CMPQ DX, $0x00000000
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JE reduce
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VMOVSS (AX), X6
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VFMADD231SS (CX), X6, X12
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ADDQ $0x00000004, AX
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ADDQ $0x00000004, CX
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DECQ DX
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JMP tailloop
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reduce:
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VADDPS Y0, Y1, Y0
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VADDPS Y0, Y2, Y0
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VADDPS Y0, Y3, Y0
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VADDPS Y0, Y4, Y0
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VADDPS Y0, Y5, Y0
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VEXTRACTF128 $0x01, Y0, X1
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VADDPS X0, X1, X0
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VADDPS X0, X12, X0
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VHADDPS X0, X0, X0
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VHADDPS X0, X0, X0
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MOVSS X0, ret+48(FP)
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RET
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