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internal/sm2ec: s390x uses VLM/VSTM optimize load/store batch 2

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Sun Yimin 2024-08-26 17:50:17 +08:00 committed by GitHub
parent 9034606fc7
commit 260c84eeb4
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1 changed files with 11 additions and 15 deletions
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26
internal/sm2ec/p256_asm_s390x.s
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@ -68,8 +68,8 @@ TEXT ·p256BigToLittle(SB), NOSPLIT, $0
VPDI $0x4, T1L, T1L, T1L
VPDI $0x4, T1H, T1H, T1H
VST T1L, 0(res_ptr)
VST T1H, 16(res_ptr)
VSTM T1L, T1H, (res_ptr)
RET
#undef res_ptr
@ -88,8 +88,8 @@ TEXT ·p256BigToLittle(SB), NOSPLIT, $0
#define T1L V2
#define T1H V3
#define PL V30
#define PH V31
#define PL V31
#define PH V30
#define ZER V4
#define SEL1 V5
@ -98,8 +98,7 @@ TEXT ·p256NegCond(SB), NOSPLIT, $0
MOVD val+0(FP), P1ptr
MOVD $p256mul<>+0x00(SB), CPOOL
VL 16(CPOOL), PL
VL 0(CPOOL), PH
VLM (CPOOL), PH, PL
VL 16(P1ptr), Y1H
VPDI $0x4, Y1H, Y1H, Y1H
@ -296,13 +295,13 @@ loop_select:
#define TT1 V4
#define ZER V6
#define SEL1 V7
#define CAR1 V9
#define CAR2 V10
#define RED1 V11
#define RED2 V12
#define PH V13
#define PL V14
#define PH V15
#define SEL1 V15
TEXT ·p256FromMont(SB), NOSPLIT, $0
MOVD res+0(FP), res_ptr
@ -311,13 +310,10 @@ TEXT ·p256FromMont(SB), NOSPLIT, $0
VZERO T2
VZERO ZER
MOVD $p256<>+0x00(SB), CPOOL
VL 16(CPOOL), PL
VL 0(CPOOL), PH
VL 32(CPOOL), SEL1
VLM (CPOOL), PH, SEL1
VL (0*16)(x_ptr), T0
VLM (x_ptr), T0, T1
VPDI $0x4, T0, T0, T0
VL (1*16)(x_ptr), T1
VPDI $0x4, T1, T1, T1
// First round
@ -401,9 +397,9 @@ TEXT ·p256FromMont(SB), NOSPLIT, $0
VSEL T1, TT1, T2, T1
VPDI $0x4, T0, T0, TT0
VST TT0, (0*16)(res_ptr)
VPDI $0x4, T1, T1, TT1
VST TT1, (1*16)(res_ptr)
VSTM TT0, TT1, (res_ptr)
RET
#undef res_ptr