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asm_convert_amd64.s
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//go:build amd64 && !purego
#include "textflag.h"
TEXT ·cmplxToFloat4AssignAVX2(SB), NOSPLIT, $0-48
MOVQ v_base+0(FP), AX
MOVQ vOut_base+24(FP), BX
MOVQ vOut_len+32(FP), DX
XORQ SI, SI
JMP loop_end
loop_body:
VMOVUPD (AX)(SI*8), Y0
VMOVUPD 32(AX)(SI*8), Y1
VPERM2F128 $0b00000000, Y0, Y0, Y2
VPERM2F128 $0b00010001, Y0, Y0, Y3
VSHUFPD $0b1100, Y3, Y2, Y4
VPERM2F128 $0b00000000, Y1, Y1, Y5
VPERM2F128 $0b00010001, Y1, Y1, Y6
VSHUFPD $0b1100, Y6, Y5, Y7
VPERM2F128 $0b00000010, Y4, Y7, Y8
VPERM2F128 $0b00010011, Y4, Y7, Y9
VMOVUPD Y8, (BX)(SI*8)
VMOVUPD Y9, 32(BX)(SI*8)
ADDQ $8, SI
loop_end:
CMPQ SI, DX
JL loop_body
RET
TEXT ·float4ToCmplxAssignAVX2(SB), NOSPLIT, $0-48
MOVQ v_base+0(FP), AX
MOVQ vOut_base+24(FP), BX
MOVQ v_len+8(FP), DX
XORQ SI, SI
JMP loop_end
loop_body:
VMOVUPD (AX)(SI*8), Y0
VMOVUPD 32(AX)(SI*8), Y1
VSHUFPD $0b0000, Y1, Y0, Y2
VSHUFPD $0b1111, Y1, Y0, Y3
VPERM2F128 $0b00100000, Y3, Y2, Y4
VPERM2F128 $0b00110001, Y3, Y2, Y5
VMOVUPD Y4, (BX)(SI*8)
VMOVUPD Y5, 32(BX)(SI*8)
ADDQ $8, SI
loop_end:
CMPQ SI, DX
JL loop_body
RET