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internal/sm2ec: loong64 select lsx version

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Sun Yimin 2025-10-16 16:53:06 +08:00 committed by GitHub
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commit f9f3a961b0
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internal/sm2ec/p256_asm_loong64.s
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@ -1296,6 +1296,61 @@ TEXT ·p256Select(SB),NOSPLIT,$0
MOVV table+8(FP), y_ptr
MOVV res+0(FP), res_ptr
MOVV ·supportLSX+0(SB), t1
BEQ t1, ZERO, basic_path
MOVV $1, t0
VMOVQ t0, V0.V2 // broadcast 1 to all lanes
VMOVQ V0, V1
VMOVQ const0, V2.V2 // broadcast idx to all lanes
VXORV V3, V3, V3 // zero
VXORV V4, V4, V4
VXORV V5, V5, V5
VXORV V6, V6, V6
VXORV V7, V7, V7
VXORV V8, V8, V8
MOVV $0, const1
loop_select_lsx:
ADDV $1, const1, const1
VSEQV V1, V2, V9
VMOVQ (16*0)(y_ptr), V10
VMOVQ (16*1)(y_ptr), V11
VMOVQ (16*2)(y_ptr), V12
VMOVQ (16*3)(y_ptr), V13
VMOVQ (16*4)(y_ptr), V14
VMOVQ (16*5)(y_ptr), V15
VANDNV V10, V9, V10
VANDNV V11, V9, V11
VANDNV V12, V9, V12
VANDNV V13, V9, V13
VANDNV V14, V9, V14
VANDNV V15, V9, V15
VORV V10, V3, V3
VORV V11, V4, V4
VORV V12, V5, V5
VORV V13, V6, V6
VORV V14, V7, V7
VORV V15, V8, V8
VADDV V0, V1
ADDVU $96, y_ptr, y_ptr
BNE const1, x_ptr, loop_select_lsx
VMOVQ V3, (16*0)(res_ptr)
VMOVQ V4, (16*1)(res_ptr)
VMOVQ V5, (16*2)(res_ptr)
VMOVQ V6, (16*3)(res_ptr)
VMOVQ V7, (16*4)(res_ptr)
VMOVQ V8, (16*5)(res_ptr)
RET
basic_path:
MOVV $0, x0
MOVV $0, x1
MOVV $0, x2
@ -1379,6 +1434,52 @@ TEXT ·p256SelectAffine(SB),NOSPLIT,$0
MOVV table+8(FP), t1
MOVV res+0(FP), res_ptr
MOVV ·supportLSX+0(SB), t2
BEQ t2, ZERO, basic_path
MOVV $1, t2
VMOVQ t2, V0.V2 // broadcast 1 to all lanes
VMOVQ V0, V1
VMOVQ t0, V2.V2 // broadcast idx to all lanes
VXORV V3, V3, V3 // zero
VXORV V4, V4, V4
VXORV V5, V5, V5
VXORV V6, V6, V6
MOVV $0, t2
MOVV $32, const0
loop_select_lsx:
ADDV $1, t2, t2
VSEQV V1, V2, V9
VMOVQ (16*0)(t1), V10
VMOVQ (16*1)(t1), V11
VMOVQ (16*2)(t1), V12
VMOVQ (16*3)(t1), V13
VANDNV V10, V9, V10
VANDNV V11, V9, V11
VANDNV V12, V9, V12
VANDNV V13, V9, V13
VORV V10, V3, V3
VORV V11, V4, V4
VORV V12, V5, V5
VORV V13, V6, V6
VADDV V0, V1
ADDVU $64, t1, t1
BNE t2, const0, loop_select
VMOVQ V3, (16*0)(res_ptr)
VMOVQ V4, (16*1)(res_ptr)
VMOVQ V5, (16*2)(res_ptr)
VMOVQ V6, (16*3)(res_ptr)
RET
basic_path:
XOR x0, x0, x0
XOR x1, x1, x1
XOR x2, x2, x2