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internal/subtle: s390x, use VLM/VSTM in loop

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Sun Yimin 2024-08-28 13:12:57 +08:00 committed by GitHub
parent 4ad4fb4136
commit 40bd384f21
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1 changed files with 3 additions and 12 deletions
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internal/subtle/xor_s390x.s
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@ -13,22 +13,13 @@ TEXT ·xorBytes(SB),NOSPLIT,$0-32
CMPBLT R4, $64, tail CMPBLT R4, $64, tail
loop_64: loop_64:
VL 0(R2)(R5*1), V0 VLM 0(R2)(R5*1), V0, V3
VL 16(R2)(R5*1), V1 VLM 0(R3)(R5*1), V4, V7
VL 32(R2)(R5*1), V2
VL 48(R2)(R5*1), V3
VL 0(R3)(R5*1), V4
VL 16(R3)(R5*1), V5
VL 32(R3)(R5*1), V6
VL 48(R3)(R5*1), V7
VX V0, V4, V4 VX V0, V4, V4
VX V1, V5, V5 VX V1, V5, V5
VX V2, V6, V6 VX V2, V6, V6
VX V3, V7, V7 VX V3, V7, V7
VST V4, 0(R1)(R5*1) VSTM V4, V7, 0(R1)(R5*1)
VST V5, 16(R1)(R5*1)
VST V6, 32(R1)(R5*1)
VST V7, 48(R1)(R5*1)
LAY 64(R5), R5 LAY 64(R5), R5
SUB $64, R4 SUB $64, R4
CMPBGE R4, $64, loop_64 CMPBGE R4, $64, loop_64