[SOLVED] How to load global data to NEON registers more efficiently in Go's Assembler？

How to load global data to NEON registers more efficiently in Go's Assembler？

There is p256one global data in the arm64 asm code as sample:

DATA p256one<>+0x00(SB)/8, $0x0000000000000001
DATA p256one<>+0x08(SB)/8, $0xffffffff00000000
DATA p256one<>+0x10(SB)/8, $0xffffffffffffffff
DATA p256one<>+0x18(SB)/8, $0x00000000fffffffe

GLOBL p256one<>(SB), 8, $32

I need to load p256one<>(SB) into V0 & V1 registers. Currently I used below method:

    LDP p256one<>+0x00(SB), (R0, R1)
    LDP p256one<>+0x10(SB), (R2, R3)
    VMOV R0, V0.D[0]
    VMOV R1, V0.D[1]
    VMOV R2, V1.D[0]
    VMOV R3, V1.D[1]

Total six directives are used here. We know we can load memory data as below:

    VLD1 (R0), [V0.B16, V1.B16]

But it seems we can't load global data with the same method.
So, is there a more efficient way to load global data into NEON registers in Go's Assembler code?

Solution

Try to load the address into a register, then load from that address:

    MOVD $p256one<>(SB), R0
    VLD1 (R0), [V0.B16, V1.B16]