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internal/sm2ec: loong64 select lasx version

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Sun Yimin 2025-10-16 17:30:37 +08:00 committed by GitHub
parent 6fcc6eb1bb
commit ce6ada12df
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internal/sm2ec/p256_asm_loong64.s
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@ -1299,6 +1299,45 @@ TEXT ·p256Select(SB),NOSPLIT,$0
MOVV ·supportLSX+0(SB), t1
BEQ t1, ZERO, basic_path
MOVV ·supportLASX+0(SB), t1
BEQ t1, ZERO, lsx_path
MOVV $1, t0
XVMOVQ t0, X0.V4 // broadcast 1 to all lanes
XVMOVQ t0, X1.V4
XVMOVQ const0, X2.V4 // broadcast idx to all lanes
XVXORV X3, X3, X3 // zero
XVXORV X4, X4, X4
XVXORV X5, X5, X5
MOVV $0, const1
loop_select_lasx:
ADDV $1, const1, const1
XVSEQV X1, X2, X9
XVMOVQ (32*0)(y_ptr), X10
XVMOVQ (32*1)(y_ptr), X11
XVMOVQ (32*2)(y_ptr), X12
XVANDV X10, X9, X10
XVANDV X11, X9, X11
XVANDV X12, X9, X12
XVORV X10, X3, X3
XVORV X11, X4, X4
XVORV X12, X5, X5
XVADDV X0, X1
ADDVU $96, y_ptr, y_ptr
BNE const1, x_ptr, loop_select_lasx
XVMOVQ X3, (32*0)(res_ptr)
XVMOVQ X4, (32*1)(res_ptr)
XVMOVQ X5, (32*2)(res_ptr)
RET
lsx_path:
MOVV $1, t0
VMOVQ t0, V0.V2 // broadcast 1 to all lanes
VMOVQ t0, V1.V2
@ -1437,6 +1476,42 @@ TEXT ·p256SelectAffine(SB),NOSPLIT,$0
MOVV ·supportLSX+0(SB), t2
BEQ t2, ZERO, basic_path
MOVV ·supportLASX+0(SB), t2
BEQ t2, ZERO, lsx_path
MOVV $1, t2
XVMOVQ t2, X0.V4 // broadcast 1 to all lanes
XVMOVQ t2, X1.V4
XVMOVQ t0, X2.V4 // broadcast idx to all lanes
XVXORV X3, X3, X3 // zero
XVXORV X4, X4, X4
MOVV $0, t2
MOVV $32, const0
loop_select_lasx:
ADDV $1, t2, t2
XVSEQV X1, X2, X9
XVMOVQ (32*0)(t1), X10
XVMOVQ (32*1)(t1), X11
XVANDV X10, X9, X10
XVANDV X11, X9, X11
XVORV X10, X3, X3
XVORV X11, X4, X4
XVADDV X0, X1
ADDVU $64, t1, t1
BNE t2, const0, loop_select_lasx
XVMOVQ X3, (32*0)(res_ptr)
XVMOVQ X4, (32*1)(res_ptr)
RET
lsx_path:
MOVV $1, t2
VMOVQ t2, V0.V2 // broadcast 1 to all lanes
VMOVQ t2, V1.V2