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|
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Based on CRYPTOGAMS code with the following comment:
// # ====================================================================
// # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
// # project. The module is, however, dual licensed under OpenSSL and
// # CRYPTOGAMS licenses depending on where you obtain it. For further
// # details see http://www.openssl.org/~appro/cryptogams/.
// # ====================================================================
//go:build ppc64 || ppc64le
#include "textflag.h"
// SHA512 block routine. See sha512block.go for Go equivalent.
//
// The algorithm is detailed in FIPS 180-4:
//
// https://csrc.nist.gov/publications/fips/fips180-4/fips-180-4.pdf
//
// Wt = Mt; for 0 <= t <= 15
// Wt = SIGMA1(Wt-2) + SIGMA0(Wt-15) + Wt-16; for 16 <= t <= 79
//
// a = H0
// b = H1
// c = H2
// d = H3
// e = H4
// f = H5
// g = H6
// h = H7
//
// for t = 0 to 79 {
// T1 = h + BIGSIGMA1(e) + Ch(e,f,g) + Kt + Wt
// T2 = BIGSIGMA0(a) + Maj(a,b,c)
// h = g
// g = f
// f = e
// e = d + T1
// d = c
// c = b
// b = a
// a = T1 + T2
// }
//
// H0 = a + H0
// H1 = b + H1
// H2 = c + H2
// H3 = d + H3
// H4 = e + H4
// H5 = f + H5
// H6 = g + H6
// H7 = h + H7
#define CTX R3
#define INP R4
#define END R5
#define TBL R6
#define IDX R7
#define CNT R8
#define LEN R9
#define OFFLOAD R11
#define TEMP R12
#define HEX00 R0
#define HEX10 R10
#define HEX20 R25
#define HEX30 R26
// V0-V7 are A-H
// V8-V23 are used for the message schedule
#define KI V24
#define FUNC V25
#define S0 V26
#define S1 V27
#define s0 V28
#define s1 V29
#define LEMASK V31 // Permutation control register for little endian
// VPERM is needed on LE to switch the bytes
#ifdef GOARCH_ppc64le
#define VPERMLE(va,vb,vc,vt) VPERM va, vb, vc, vt
#else
#define VPERMLE(va,vb,vc,vt)
#endif
// 2 copies of each Kt, to fill both doublewords of a vector register
DATA ·kcon+0x000(SB)/8, $0x428a2f98d728ae22
DATA ·kcon+0x008(SB)/8, $0x428a2f98d728ae22
DATA ·kcon+0x010(SB)/8, $0x7137449123ef65cd
DATA ·kcon+0x018(SB)/8, $0x7137449123ef65cd
DATA ·kcon+0x020(SB)/8, $0xb5c0fbcfec4d3b2f
DATA ·kcon+0x028(SB)/8, $0xb5c0fbcfec4d3b2f
DATA ·kcon+0x030(SB)/8, $0xe9b5dba58189dbbc
DATA ·kcon+0x038(SB)/8, $0xe9b5dba58189dbbc
DATA ·kcon+0x040(SB)/8, $0x3956c25bf348b538
DATA ·kcon+0x048(SB)/8, $0x3956c25bf348b538
DATA ·kcon+0x050(SB)/8, $0x59f111f1b605d019
DATA ·kcon+0x058(SB)/8, $0x59f111f1b605d019
DATA ·kcon+0x060(SB)/8, $0x923f82a4af194f9b
DATA ·kcon+0x068(SB)/8, $0x923f82a4af194f9b
DATA ·kcon+0x070(SB)/8, $0xab1c5ed5da6d8118
DATA ·kcon+0x078(SB)/8, $0xab1c5ed5da6d8118
DATA ·kcon+0x080(SB)/8, $0xd807aa98a3030242
DATA ·kcon+0x088(SB)/8, $0xd807aa98a3030242
DATA ·kcon+0x090(SB)/8, $0x12835b0145706fbe
DATA ·kcon+0x098(SB)/8, $0x12835b0145706fbe
DATA ·kcon+0x0A0(SB)/8, $0x243185be4ee4b28c
DATA ·kcon+0x0A8(SB)/8, $0x243185be4ee4b28c
DATA ·kcon+0x0B0(SB)/8, $0x550c7dc3d5ffb4e2
DATA ·kcon+0x0B8(SB)/8, $0x550c7dc3d5ffb4e2
DATA ·kcon+0x0C0(SB)/8, $0x72be5d74f27b896f
DATA ·kcon+0x0C8(SB)/8, $0x72be5d74f27b896f
DATA ·kcon+0x0D0(SB)/8, $0x80deb1fe3b1696b1
DATA ·kcon+0x0D8(SB)/8, $0x80deb1fe3b1696b1
DATA ·kcon+0x0E0(SB)/8, $0x9bdc06a725c71235
DATA ·kcon+0x0E8(SB)/8, $0x9bdc06a725c71235
DATA ·kcon+0x0F0(SB)/8, $0xc19bf174cf692694
DATA ·kcon+0x0F8(SB)/8, $0xc19bf174cf692694
DATA ·kcon+0x100(SB)/8, $0xe49b69c19ef14ad2
DATA ·kcon+0x108(SB)/8, $0xe49b69c19ef14ad2
DATA ·kcon+0x110(SB)/8, $0xefbe4786384f25e3
DATA ·kcon+0x118(SB)/8, $0xefbe4786384f25e3
DATA ·kcon+0x120(SB)/8, $0x0fc19dc68b8cd5b5
DATA ·kcon+0x128(SB)/8, $0x0fc19dc68b8cd5b5
DATA ·kcon+0x130(SB)/8, $0x240ca1cc77ac9c65
DATA ·kcon+0x138(SB)/8, $0x240ca1cc77ac9c65
DATA ·kcon+0x140(SB)/8, $0x2de92c6f592b0275
DATA ·kcon+0x148(SB)/8, $0x2de92c6f592b0275
DATA ·kcon+0x150(SB)/8, $0x4a7484aa6ea6e483
DATA ·kcon+0x158(SB)/8, $0x4a7484aa6ea6e483
DATA ·kcon+0x160(SB)/8, $0x5cb0a9dcbd41fbd4
DATA ·kcon+0x168(SB)/8, $0x5cb0a9dcbd41fbd4
DATA ·kcon+0x170(SB)/8, $0x76f988da831153b5
DATA ·kcon+0x178(SB)/8, $0x76f988da831153b5
DATA ·kcon+0x180(SB)/8, $0x983e5152ee66dfab
DATA ·kcon+0x188(SB)/8, $0x983e5152ee66dfab
DATA ·kcon+0x190(SB)/8, $0xa831c66d2db43210
DATA ·kcon+0x198(SB)/8, $0xa831c66d2db43210
DATA ·kcon+0x1A0(SB)/8, $0xb00327c898fb213f
DATA ·kcon+0x1A8(SB)/8, $0xb00327c898fb213f
DATA ·kcon+0x1B0(SB)/8, $0xbf597fc7beef0ee4
DATA ·kcon+0x1B8(SB)/8, $0xbf597fc7beef0ee4
DATA ·kcon+0x1C0(SB)/8, $0xc6e00bf33da88fc2
DATA ·kcon+0x1C8(SB)/8, $0xc6e00bf33da88fc2
DATA ·kcon+0x1D0(SB)/8, $0xd5a79147930aa725
DATA ·kcon+0x1D8(SB)/8, $0xd5a79147930aa725
DATA ·kcon+0x1E0(SB)/8, $0x06ca6351e003826f
DATA ·kcon+0x1E8(SB)/8, $0x06ca6351e003826f
DATA ·kcon+0x1F0(SB)/8, $0x142929670a0e6e70
DATA ·kcon+0x1F8(SB)/8, $0x142929670a0e6e70
DATA ·kcon+0x200(SB)/8, $0x27b70a8546d22ffc
DATA ·kcon+0x208(SB)/8, $0x27b70a8546d22ffc
DATA ·kcon+0x210(SB)/8, $0x2e1b21385c26c926
DATA ·kcon+0x218(SB)/8, $0x2e1b21385c26c926
DATA ·kcon+0x220(SB)/8, $0x4d2c6dfc5ac42aed
DATA ·kcon+0x228(SB)/8, $0x4d2c6dfc5ac42aed
DATA ·kcon+0x230(SB)/8, $0x53380d139d95b3df
DATA ·kcon+0x238(SB)/8, $0x53380d139d95b3df
DATA ·kcon+0x240(SB)/8, $0x650a73548baf63de
DATA ·kcon+0x248(SB)/8, $0x650a73548baf63de
DATA ·kcon+0x250(SB)/8, $0x766a0abb3c77b2a8
DATA ·kcon+0x258(SB)/8, $0x766a0abb3c77b2a8
DATA ·kcon+0x260(SB)/8, $0x81c2c92e47edaee6
DATA ·kcon+0x268(SB)/8, $0x81c2c92e47edaee6
DATA ·kcon+0x270(SB)/8, $0x92722c851482353b
DATA ·kcon+0x278(SB)/8, $0x92722c851482353b
DATA ·kcon+0x280(SB)/8, $0xa2bfe8a14cf10364
DATA ·kcon+0x288(SB)/8, $0xa2bfe8a14cf10364
DATA ·kcon+0x290(SB)/8, $0xa81a664bbc423001
DATA ·kcon+0x298(SB)/8, $0xa81a664bbc423001
DATA ·kcon+0x2A0(SB)/8, $0xc24b8b70d0f89791
DATA ·kcon+0x2A8(SB)/8, $0xc24b8b70d0f89791
DATA ·kcon+0x2B0(SB)/8, $0xc76c51a30654be30
DATA ·kcon+0x2B8(SB)/8, $0xc76c51a30654be30
DATA ·kcon+0x2C0(SB)/8, $0xd192e819d6ef5218
DATA ·kcon+0x2C8(SB)/8, $0xd192e819d6ef5218
DATA ·kcon+0x2D0(SB)/8, $0xd69906245565a910
DATA ·kcon+0x2D8(SB)/8, $0xd69906245565a910
DATA ·kcon+0x2E0(SB)/8, $0xf40e35855771202a
DATA ·kcon+0x2E8(SB)/8, $0xf40e35855771202a
DATA ·kcon+0x2F0(SB)/8, $0x106aa07032bbd1b8
DATA ·kcon+0x2F8(SB)/8, $0x106aa07032bbd1b8
DATA ·kcon+0x300(SB)/8, $0x19a4c116b8d2d0c8
DATA ·kcon+0x308(SB)/8, $0x19a4c116b8d2d0c8
DATA ·kcon+0x310(SB)/8, $0x1e376c085141ab53
DATA ·kcon+0x318(SB)/8, $0x1e376c085141ab53
DATA ·kcon+0x320(SB)/8, $0x2748774cdf8eeb99
DATA ·kcon+0x328(SB)/8, $0x2748774cdf8eeb99
DATA ·kcon+0x330(SB)/8, $0x34b0bcb5e19b48a8
DATA ·kcon+0x338(SB)/8, $0x34b0bcb5e19b48a8
DATA ·kcon+0x340(SB)/8, $0x391c0cb3c5c95a63
DATA ·kcon+0x348(SB)/8, $0x391c0cb3c5c95a63
DATA ·kcon+0x350(SB)/8, $0x4ed8aa4ae3418acb
DATA ·kcon+0x358(SB)/8, $0x4ed8aa4ae3418acb
DATA ·kcon+0x360(SB)/8, $0x5b9cca4f7763e373
DATA ·kcon+0x368(SB)/8, $0x5b9cca4f7763e373
DATA ·kcon+0x370(SB)/8, $0x682e6ff3d6b2b8a3
DATA ·kcon+0x378(SB)/8, $0x682e6ff3d6b2b8a3
DATA ·kcon+0x380(SB)/8, $0x748f82ee5defb2fc
DATA ·kcon+0x388(SB)/8, $0x748f82ee5defb2fc
DATA ·kcon+0x390(SB)/8, $0x78a5636f43172f60
DATA ·kcon+0x398(SB)/8, $0x78a5636f43172f60
DATA ·kcon+0x3A0(SB)/8, $0x84c87814a1f0ab72
DATA ·kcon+0x3A8(SB)/8, $0x84c87814a1f0ab72
DATA ·kcon+0x3B0(SB)/8, $0x8cc702081a6439ec
DATA ·kcon+0x3B8(SB)/8, $0x8cc702081a6439ec
DATA ·kcon+0x3C0(SB)/8, $0x90befffa23631e28
DATA ·kcon+0x3C8(SB)/8, $0x90befffa23631e28
DATA ·kcon+0x3D0(SB)/8, $0xa4506cebde82bde9
DATA ·kcon+0x3D8(SB)/8, $0xa4506cebde82bde9
DATA ·kcon+0x3E0(SB)/8, $0xbef9a3f7b2c67915
DATA ·kcon+0x3E8(SB)/8, $0xbef9a3f7b2c67915
DATA ·kcon+0x3F0(SB)/8, $0xc67178f2e372532b
DATA ·kcon+0x3F8(SB)/8, $0xc67178f2e372532b
DATA ·kcon+0x400(SB)/8, $0xca273eceea26619c
DATA ·kcon+0x408(SB)/8, $0xca273eceea26619c
DATA ·kcon+0x410(SB)/8, $0xd186b8c721c0c207
DATA ·kcon+0x418(SB)/8, $0xd186b8c721c0c207
DATA ·kcon+0x420(SB)/8, $0xeada7dd6cde0eb1e
DATA ·kcon+0x428(SB)/8, $0xeada7dd6cde0eb1e
DATA ·kcon+0x430(SB)/8, $0xf57d4f7fee6ed178
DATA ·kcon+0x438(SB)/8, $0xf57d4f7fee6ed178
DATA ·kcon+0x440(SB)/8, $0x06f067aa72176fba
DATA ·kcon+0x448(SB)/8, $0x06f067aa72176fba
DATA ·kcon+0x450(SB)/8, $0x0a637dc5a2c898a6
DATA ·kcon+0x458(SB)/8, $0x0a637dc5a2c898a6
DATA ·kcon+0x460(SB)/8, $0x113f9804bef90dae
DATA ·kcon+0x468(SB)/8, $0x113f9804bef90dae
DATA ·kcon+0x470(SB)/8, $0x1b710b35131c471b
DATA ·kcon+0x478(SB)/8, $0x1b710b35131c471b
DATA ·kcon+0x480(SB)/8, $0x28db77f523047d84
DATA ·kcon+0x488(SB)/8, $0x28db77f523047d84
DATA ·kcon+0x490(SB)/8, $0x32caab7b40c72493
DATA ·kcon+0x498(SB)/8, $0x32caab7b40c72493
DATA ·kcon+0x4A0(SB)/8, $0x3c9ebe0a15c9bebc
DATA ·kcon+0x4A8(SB)/8, $0x3c9ebe0a15c9bebc
DATA ·kcon+0x4B0(SB)/8, $0x431d67c49c100d4c
DATA ·kcon+0x4B8(SB)/8, $0x431d67c49c100d4c
DATA ·kcon+0x4C0(SB)/8, $0x4cc5d4becb3e42b6
DATA ·kcon+0x4C8(SB)/8, $0x4cc5d4becb3e42b6
DATA ·kcon+0x4D0(SB)/8, $0x597f299cfc657e2a
DATA ·kcon+0x4D8(SB)/8, $0x597f299cfc657e2a
DATA ·kcon+0x4E0(SB)/8, $0x5fcb6fab3ad6faec
DATA ·kcon+0x4E8(SB)/8, $0x5fcb6fab3ad6faec
DATA ·kcon+0x4F0(SB)/8, $0x6c44198c4a475817
DATA ·kcon+0x4F8(SB)/8, $0x6c44198c4a475817
DATA ·kcon+0x500(SB)/8, $0x0000000000000000
DATA ·kcon+0x508(SB)/8, $0x0000000000000000
DATA ·kcon+0x510(SB)/8, $0x1011121314151617
DATA ·kcon+0x518(SB)/8, $0x0001020304050607
GLOBL ·kcon(SB), RODATA, $1312
#define SHA512ROUND0(a, b, c, d, e, f, g, h, xi) \
VSEL g, f, e, FUNC; \
VSHASIGMAD $15, e, $1, S1; \
VADDUDM xi, h, h; \
VSHASIGMAD $0, a, $1, S0; \
VADDUDM FUNC, h, h; \
VXOR b, a, FUNC; \
VADDUDM S1, h, h; \
VSEL b, c, FUNC, FUNC; \
VADDUDM KI, g, g; \
VADDUDM h, d, d; \
VADDUDM FUNC, S0, S0; \
LVX (TBL)(IDX), KI; \
ADD $16, IDX; \
VADDUDM S0, h, h
#define SHA512ROUND1(a, b, c, d, e, f, g, h, xi, xj, xj_1, xj_9, xj_14) \
VSHASIGMAD $0, xj_1, $0, s0; \
VSEL g, f, e, FUNC; \
VSHASIGMAD $15, e, $1, S1; \
VADDUDM xi, h, h; \
VSHASIGMAD $0, a, $1, S0; \
VSHASIGMAD $15, xj_14, $0, s1; \
VADDUDM FUNC, h, h; \
VXOR b, a, FUNC; \
VADDUDM xj_9, xj, xj; \
VADDUDM S1, h, h; \
VSEL b, c, FUNC, FUNC; \
VADDUDM KI, g, g; \
VADDUDM h, d, d; \
VADDUDM FUNC, S0, S0; \
VADDUDM s0, xj, xj; \
LVX (TBL)(IDX), KI; \
ADD $16, IDX; \
VADDUDM S0, h, h; \
VADDUDM s1, xj, xj
// func block(dig *digest, p []byte)
TEXT ·block(SB),0,$0-32
MOVD dig+0(FP), CTX
MOVD p_base+8(FP), INP
MOVD p_len+16(FP), LEN
SRD $6, LEN
SLD $6, LEN
ADD INP, LEN, END
CMP INP, END
BEQ end
MOVD $·kcon(SB), TBL
MOVD R1, OFFLOAD
MOVD R0, CNT
MOVWZ $0x10, HEX10
MOVWZ $0x20, HEX20
MOVWZ $0x30, HEX30
// Generate the mask used with VPERM for LE
#ifdef GOARCH_ppc64le
MOVWZ $8, IDX
LVSL (IDX)(R0), LEMASK
VSPLTISB $0x0F, KI
VXOR KI, LEMASK, LEMASK
#endif
LXVD2X (CTX)(HEX00), VS32 // v0 = vs32
LXVD2X (CTX)(HEX10), VS34 // v2 = vs34
LXVD2X (CTX)(HEX20), VS36 // v4 = vs36
// unpack the input values into vector registers
VSLDOI $8, V0, V0, V1
LXVD2X (CTX)(HEX30), VS38 // v6 = vs38
VSLDOI $8, V2, V2, V3
VSLDOI $8, V4, V4, V5
VSLDOI $8, V6, V6, V7
loop:
LVX (TBL)(HEX00), KI
MOVWZ $16, IDX
LXVD2X (INP)(R0), VS40 // load v8 (=vs40) in advance
ADD $16, INP
// Copy V0-V7 to VS24-VS31
XXLOR V0, V0, VS24
XXLOR V1, V1, VS25
XXLOR V2, V2, VS26
XXLOR V3, V3, VS27
XXLOR V4, V4, VS28
XXLOR V5, V5, VS29
XXLOR V6, V6, VS30
XXLOR V7, V7, VS31
VADDUDM KI, V7, V7 // h+K[i]
LVX (TBL)(IDX), KI
ADD $16, IDX
VPERMLE(V8,V8,LEMASK,V8)
SHA512ROUND0(V0, V1, V2, V3, V4, V5, V6, V7, V8)
LXVD2X (INP)(R0), VS42 // load v10 (=vs42) in advance
ADD $16, INP, INP
VSLDOI $8, V8, V8, V9
SHA512ROUND0(V7, V0, V1, V2, V3, V4, V5, V6, V9)
VPERMLE(V10,V10,LEMASK,V10)
SHA512ROUND0(V6, V7, V0, V1, V2, V3, V4, V5, V10)
LXVD2X (INP)(R0), VS44 // load v12 (=vs44) in advance
ADD $16, INP, INP
VSLDOI $8, V10, V10, V11
SHA512ROUND0(V5, V6, V7, V0, V1, V2, V3, V4, V11)
VPERMLE(V12,V12,LEMASK,V12)
SHA512ROUND0(V4, V5, V6, V7, V0, V1, V2, V3, V12)
LXVD2X (INP)(R0), VS46 // load v14 (=vs46) in advance
ADD $16, INP, INP
VSLDOI $8, V12, V12, V13
SHA512ROUND0(V3, V4, V5, V6, V7, V0, V1, V2, V13)
VPERMLE(V14,V14,LEMASK,V14)
SHA512ROUND0(V2, V3, V4, V5, V6, V7, V0, V1, V14)
LXVD2X (INP)(R0), VS48 // load v16 (=vs48) in advance
ADD $16, INP, INP
VSLDOI $8, V14, V14, V15
SHA512ROUND0(V1, V2, V3, V4, V5, V6, V7, V0, V15)
VPERMLE(V16,V16,LEMASK,V16)
SHA512ROUND0(V0, V1, V2, V3, V4, V5, V6, V7, V16)
LXVD2X (INP)(R0), VS50 // load v18 (=vs50) in advance
ADD $16, INP, INP
VSLDOI $8, V16, V16, V17
SHA512ROUND0(V7, V0, V1, V2, V3, V4, V5, V6, V17)
VPERMLE(V18,V18,LEMASK,V18)
SHA512ROUND0(V6, V7, V0, V1, V2, V3, V4, V5, V18)
LXVD2X (INP)(R0), VS52 // load v20 (=vs52) in advance
ADD $16, INP, INP
VSLDOI $8, V18, V18, V19
SHA512ROUND0(V5, V6, V7, V0, V1, V2, V3, V4, V19)
VPERMLE(V20,V20,LEMASK,V20)
SHA512ROUND0(V4, V5, V6, V7, V0, V1, V2, V3, V20)
LXVD2X (INP)(R0), VS54 // load v22 (=vs54) in advance
ADD $16, INP, INP
VSLDOI $8, V20, V20, V21
SHA512ROUND0(V3, V4, V5, V6, V7, V0, V1, V2, V21)
VPERMLE(V22,V22,LEMASK,V22)
SHA512ROUND0(V2, V3, V4, V5, V6, V7, V0, V1, V22)
VSLDOI $8, V22, V22, V23
SHA512ROUND1(V1, V2, V3, V4, V5, V6, V7, V0, V23, V8, V9, V17, V22)
MOVWZ $4, TEMP
MOVWZ TEMP, CTR
L16_xx:
SHA512ROUND1(V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V18, V23)
SHA512ROUND1(V7, V0, V1, V2, V3, V4, V5, V6, V9, V10, V11, V19, V8)
SHA512ROUND1(V6, V7, V0, V1, V2, V3, V4, V5, V10, V11, V12, V20, V9)
SHA512ROUND1(V5, V6, V7, V0, V1, V2, V3, V4, V11, V12, V13, V21, V10)
SHA512ROUND1(V4, V5, V6, V7, V0, V1, V2, V3, V12, V13, V14, V22, V11)
SHA512ROUND1(V3, V4, V5, V6, V7, V0, V1, V2, V13, V14, V15, V23, V12)
SHA512ROUND1(V2, V3, V4, V5, V6, V7, V0, V1, V14, V15, V16, V8, V13)
SHA512ROUND1(V1, V2, V3, V4, V5, V6, V7, V0, V15, V16, V17, V9, V14)
SHA512ROUND1(V0, V1, V2, V3, V4, V5, V6, V7, V16, V17, V18, V10, V15)
SHA512ROUND1(V7, V0, V1, V2, V3, V4, V5, V6, V17, V18, V19, V11, V16)
SHA512ROUND1(V6, V7, V0, V1, V2, V3, V4, V5, V18, V19, V20, V12, V17)
SHA512ROUND1(V5, V6, V7, V0, V1, V2, V3, V4, V19, V20, V21, V13, V18)
SHA512ROUND1(V4, V5, V6, V7, V0, V1, V2, V3, V20, V21, V22, V14, V19)
SHA512ROUND1(V3, V4, V5, V6, V7, V0, V1, V2, V21, V22, V23, V15, V20)
SHA512ROUND1(V2, V3, V4, V5, V6, V7, V0, V1, V22, V23, V8, V16, V21)
SHA512ROUND1(V1, V2, V3, V4, V5, V6, V7, V0, V23, V8, V9, V17, V22)
BC 0x10, 0, L16_xx // bdnz
XXLOR VS24, VS24, V10
XXLOR VS25, VS25, V11
XXLOR VS26, VS26, V12
XXLOR VS27, VS27, V13
XXLOR VS28, VS28, V14
XXLOR VS29, VS29, V15
XXLOR VS30, VS30, V16
XXLOR VS31, VS31, V17
VADDUDM V10, V0, V0
VADDUDM V11, V1, V1
VADDUDM V12, V2, V2
VADDUDM V13, V3, V3
VADDUDM V14, V4, V4
VADDUDM V15, V5, V5
VADDUDM V16, V6, V6
VADDUDM V17, V7, V7
CMPU INP, END
BLT loop
#ifdef GOARCH_ppc64le
VPERM V0, V1, KI, V0
VPERM V2, V3, KI, V2
VPERM V4, V5, KI, V4
VPERM V6, V7, KI, V6
#else
VPERM V1, V0, KI, V0
VPERM V3, V2, KI, V2
VPERM V5, V4, KI, V4
VPERM V7, V6, KI, V6
#endif
STXVD2X VS32, (CTX+HEX00) // v0 = vs32
STXVD2X VS34, (CTX+HEX10) // v2 = vs34
STXVD2X VS36, (CTX+HEX20) // v4 = vs36
STXVD2X VS38, (CTX+HEX30) // v6 = vs38
end:
RET
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