/* sha1-armv7-neon.S - ARM/NEON accelerated SHA-1 transform function
* Copyright (C) 2013-2014 Jussi Kivilinna <jussi.kivilinna@iki.fi>
*
* Based on sha1.c:
* Copyright (C) 1998, 2001, 2002, 2003, 2008 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#if defined(HAVE_ARM_ARCH_V6) && defined(__ARMEL__) && \
defined(HAVE_COMPATIBLE_GCC_ARM_PLATFORM_AS) && \
defined(HAVE_GCC_INLINE_ASM_NEON) && defined(USE_SHA1)
.syntax unified
.fpu neon
.arm
.text
#ifdef __PIC__
# define GET_DATA_POINTER(reg, name, rtmp) \
ldr reg, 1f; \
ldr rtmp, 2f; \
b 3f; \
1: .word _GLOBAL_OFFSET_TABLE_-(3f+8); \
2: .word name(GOT); \
3: add reg, pc, reg; \
ldr reg, [reg, rtmp];
#else
# define GET_DATA_POINTER(reg, name, rtmp) ldr reg, =name
#endif
/* Context structure */
#define state_h0 0
#define state_h1 4
#define state_h2 8
#define state_h3 12
#define state_h4 16
/* Constants */
#define K1 0x5A827999
#define K2 0x6ED9EBA1
#define K3 0x8F1BBCDC
#define K4 0xCA62C1D6
.align 4
gcry_sha1_armv7_neon_K_VEC:
.LK_VEC:
.LK1: .long K1, K1, K1, K1
.LK2: .long K2, K2, K2, K2
.LK3: .long K3, K3, K3, K3
.LK4: .long K4, K4, K4, K4
/* Register macros */
#define RSTATE r0
#define RDATA r1
#define RNBLKS r2
#define ROLDSTACK r3
#define RWK lr
#define _a r4
#define _b r5
#define _c r6
#define _d r7
#define _e r8
#define RT0 r9
#define RT1 r10
#define RT2 r11
#define RT3 r12
#define W0 q0
#define W1 q1
#define W2 q2
#define W3 q3
#define W4 q4
#define W5 q5
#define W6 q6
#define W7 q7
#define tmp0 q8
#define tmp1 q9
#define tmp2 q10
#define tmp3 q11
#define qK1 q12
#define qK2 q13
#define qK3 q14
#define qK4 q15
/* Round function macros. */
#define WK_offs(i) (((i) & 15) * 4)
#define _R_F1(a,b,c,d,e,i,pre1,pre2,pre3,i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
ldr RT3, [sp, WK_offs(i)]; \
pre1(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
bic RT0, d, b; \
add e, e, a, ror #(32 - 5); \
and RT1, c, b; \
pre2(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add RT0, RT0, RT3; \
add e, e, RT1; \
ror b, #(32 - 30); \
pre3(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add e, e, RT0;
#define _R_F2(a,b,c,d,e,i,pre1,pre2,pre3,i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
ldr RT3, [sp, WK_offs(i)]; \
pre1(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
eor RT0, d, b; \
add e, e, a, ror #(32 - 5); \
eor RT0, RT0, c; \
pre2(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add e, e, RT3; \
ror b, #(32 - 30); \
pre3(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add e, e, RT0; \
#define _R_F3(a,b,c,d,e,i,pre1,pre2,pre3,i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
ldr RT3, [sp, WK_offs(i)]; \
pre1(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
eor RT0, b, c; \
and RT1, b, c; \
add e, e, a, ror #(32 - 5); \
pre2(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
and RT0, RT0, d; \
add RT1, RT1, RT3; \
add e, e, RT0; \
ror b, #(32 - 30); \
pre3(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add e, e, RT1;
#define _R_F4(a,b,c,d,e,i,pre1,pre2,pre3,i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
_R_F2(a,b,c,d,e,i,pre1,pre2,pre3,i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28)
#define _R(a,b,c,d,e,f,i,pre1,pre2,pre3,i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
_R_##f(a,b,c,d,e,i,pre1,pre2,pre3,i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28)
#define R(a,b,c,d,e,f,i) \
_R_##f(a,b,c,d,e,i,dummy,dummy,dummy,i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28)
#define dummy(...)
/* Input expansion macros. */
/********* Precalc macros for rounds 0-15 *************************************/
#define W_PRECALC_00_15() \
add RWK, sp, #(WK_offs(0)); \
\
vld1.32 {tmp0, tmp1}, [RDATA]!; \
vrev32.8 W0, tmp0; /* big => little */ \
vld1.32 {tmp2, tmp3}, [RDATA]!; \
vadd.u32 tmp0, W0, curK; \
vrev32.8 W7, tmp1; /* big => little */ \
vrev32.8 W6, tmp2; /* big => little */ \
vadd.u32 tmp1, W7, curK; \
vrev32.8 W5, tmp3; /* big => little */ \
vadd.u32 tmp2, W6, curK; \
vst1.32 {tmp0, tmp1}, [RWK]!; \
vadd.u32 tmp3, W5, curK; \
vst1.32 {tmp2, tmp3}, [RWK]; \
#define WPRECALC_00_15_0(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vld1.32 {tmp0, tmp1}, [RDATA]!; \
#define WPRECALC_00_15_1(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
add RWK, sp, #(WK_offs(0)); \
#define WPRECALC_00_15_2(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vrev32.8 W0, tmp0; /* big => little */ \
#define WPRECALC_00_15_3(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vld1.32 {tmp2, tmp3}, [RDATA]!; \
#define WPRECALC_00_15_4(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vadd.u32 tmp0, W0, curK; \
#define WPRECALC_00_15_5(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vrev32.8 W7, tmp1; /* big => little */ \
#define WPRECALC_00_15_6(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vrev32.8 W6, tmp2; /* big => little */ \
#define WPRECALC_00_15_7(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vadd.u32 tmp1, W7, curK; \
#define WPRECALC_00_15_8(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vrev32.8 W5, tmp3; /* big => little */ \
#define WPRECALC_00_15_9(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vadd.u32 tmp2, W6, curK; \
#define WPRECALC_00_15_10(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vst1.32 {tmp0, tmp1}, [RWK]!; \
#define WPRECALC_00_15_11(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vadd.u32 tmp3, W5, curK; \
#define WPRECALC_00_15_12(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vst1.32 {tmp2, tmp3}, [RWK]; \
/********* Precalc macros for rounds 16-31 ************************************/
#define WPRECALC_16_31_0(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
veor tmp0, tmp0; \
vext.8 W, W_m16, W_m12, #8; \
#define WPRECALC_16_31_1(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
add RWK, sp, #(WK_offs(i)); \
vext.8 tmp0, W_m04, tmp0, #4; \
#define WPRECALC_16_31_2(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
veor tmp0, tmp0, W_m16; \
veor.32 W, W, W_m08; \
#define WPRECALC_16_31_3(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
veor tmp1, tmp1; \
veor W, W, tmp0; \
#define WPRECALC_16_31_4(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vshl.u32 tmp0, W, #1; \
#define WPRECALC_16_31_5(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vext.8 tmp1, tmp1, W, #(16-12); \
vshr.u32 W, W, #31; \
#define WPRECALC_16_31_6(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vorr tmp0, tmp0, W; \
vshr.u32 W, tmp1, #30; \
#define WPRECALC_16_31_7(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vshl.u32 tmp1, tmp1, #2; \
#define WPRECALC_16_31_8(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
veor tmp0, tmp0, W; \
#define WPRECALC_16_31_9(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
veor W, tmp0, tmp1; \
#define WPRECALC_16_31_10(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vadd.u32 tmp0, W, curK; \
#define WPRECALC_16_31_11(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vst1.32 {tmp0}, [RWK];
/********* Precalc macros for rounds 32-79 ************************************/
#define WPRECALC_32_79_0(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
veor W, W_m28; \
#define WPRECALC_32_79_1(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vext.8 tmp0, W_m08, W_m04, #8; \
#define WPRECALC_32_79_2(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
veor W, W_m16; \
#define WPRECALC_32_79_3(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
veor W, tmp0; \
#define WPRECALC_32_79_4(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
add RWK, sp, #(WK_offs(i&~3)); \
#define WPRECALC_32_79_5(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vshl.u32 tmp1, W, #2; \
#define WPRECALC_32_79_6(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vshr.u32 tmp0, W, #30; \
#define WPRECALC_32_79_7(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vorr W, tmp0, tmp1; \
#define WPRECALC_32_79_8(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vadd.u32 tmp0, W, curK; \
#define WPRECALC_32_79_9(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28) \
vst1.32 {tmp0}, [RWK];
/* Other functional macros */
#define CLEAR_REG(reg) veor reg, reg;
/*
* Transform nblks*64 bytes (nblks*16 32-bit words) at DATA.
*
* unsigned int
* _gcry_sha1_transform_armv7_neon (void *ctx, const unsigned char *data,
* size_t nblks)
*/
.align 3
.globl _gcry_sha1_transform_armv7_neon
.type _gcry_sha1_transform_armv7_neon,%function;
_gcry_sha1_transform_armv7_neon:
/* input:
* r0: ctx, CTX
* r1: data (64*nblks bytes)
* r2: nblks
*/
cmp RNBLKS, #0;
beq .Ldo_nothing;
push {r4-r12, lr};
GET_DATA_POINTER(RT3, .LK_VEC, _a);
vpush {q4-q7};
mov ROLDSTACK, sp;
/* Align stack. */
sub sp, #(16*4);
and sp, #(~(16-1));
vld1.32 {qK1-qK2}, [RT3]!; /* Load K1,K2 */
/* Get the values of the chaining variables. */
ldm RSTATE, {_a-_e};
vld1.32 {qK3-qK4}, [RT3]; /* Load K3,K4 */
#undef curK
#define curK qK1
/* Precalc 0-15. */
W_PRECALC_00_15();
b .Loop;
.ltorg
.Loop:
/* Transform 0-15 + Precalc 16-31. */
_R( _a, _b, _c, _d, _e, F1, 0, WPRECALC_16_31_0, WPRECALC_16_31_1, WPRECALC_16_31_2, 16, W4, W5, W6, W7, W0, _, _, _ );
_R( _e, _a, _b, _c, _d, F1, 1, WPRECALC_16_31_3, WPRECALC_16_31_4, WPRECALC_16_31_5, 16, W4, W5, W6, W7, W0, _, _, _ );
_R( _d, _e, _a, _b, _c, F1, 2, WPRECALC_16_31_6, WPRECALC_16_31_7, WPRECALC_16_31_8, 16, W4, W5, W6, W7, W0, _, _, _ );
_R( _c, _d, _e, _a, _b, F1, 3, WPRECALC_16_31_9, WPRECALC_16_31_10,WPRECALC_16_31_11,16, W4, W5, W6, W7, W0, _, _, _ );
#undef curK
#define curK qK2
_R( _b, _c, _d, _e, _a, F1, 4, WPRECALC_16_31_0, WPRECALC_16_31_1, WPRECALC_16_31_2, 20, W3, W4, W5, W6, W7, _, _, _ );
_R( _a, _b, _c, _d, _e, F1, 5, WPRECALC_16_31_3, WPRECALC_16_31_4, WPRECALC_16_31_5, 20, W3, W4, W5, W6, W7, _, _, _ );
_R( _e, _a, _b, _c, _d, F1, 6, WPRECALC_16_31_6, WPRECALC_16_31_7, WPRECALC_16_31_8, 20, W3, W4, W5, W6, W7, _, _, _ );
_R( _d, _e, _a, _b, _c, F1, 7, WPRECALC_16_31_9, WPRECALC_16_31_10,WPRECALC_16_31_11,20, W3, W4, W5, W6, W7, _, _, _ );
_R( _c, _d, _e, _a, _b, F1, 8, WPRECALC_16_31_0, WPRECALC_16_31_1, WPRECALC_16_31_2, 24, W2, W3, W4, W5, W6, _, _, _ );
_R( _b, _c, _d, _e, _a, F1, 9, WPRECALC_16_31_3, WPRECALC_16_31_4, WPRECALC_16_31_5, 24, W2, W3, W4, W5, W6, _, _, _ );
_R( _a, _b, _c, _d, _e, F1, 10, WPRECALC_16_31_6, WPRECALC_16_31_7, WPRECALC_16_31_8, 24, W2, W3, W4, W5, W6, _, _, _ );
_R( _e, _a, _b, _c, _d, F1, 11, WPRECALC_16_31_9, WPRECALC_16_31_10,WPRECALC_16_31_11,24, W2, W3, W4, W5, W6, _, _, _ );
_R( _d, _e, _a, _b, _c, F1, 12, WPRECALC_16_31_0, WPRECALC_16_31_1, WPRECALC_16_31_2, 28, W1, W2, W3, W4, W5, _, _, _ );
_R( _c, _d, _e, _a, _b, F1, 13, WPRECALC_16_31_3, WPRECALC_16_31_4, WPRECALC_16_31_5, 28, W1, W2, W3, W4, W5, _, _, _ );
_R( _b, _c, _d, _e, _a, F1, 14, WPRECALC_16_31_6, WPRECALC_16_31_7, WPRECALC_16_31_8, 28, W1, W2, W3, W4, W5, _, _, _ );
_R( _a, _b, _c, _d, _e, F1, 15, WPRECALC_16_31_9, WPRECALC_16_31_10,WPRECALC_16_31_11,28, W1, W2, W3, W4, W5, _, _, _ );
/* Transform 16-63 + Precalc 32-79. */
_R( _e, _a, _b, _c, _d, F1, 16, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 32, W0, W1, W2, W3, W4, W5, W6, W7);
_R( _d, _e, _a, _b, _c, F1, 17, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 32, W0, W1, W2, W3, W4, W5, W6, W7);
_R( _c, _d, _e, _a, _b, F1, 18, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 32, W0, W1, W2, W3, W4, W5, W6, W7);
_R( _b, _c, _d, _e, _a, F1, 19, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 32, W0, W1, W2, W3, W4, W5, W6, W7);
_R( _a, _b, _c, _d, _e, F2, 20, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 36, W7, W0, W1, W2, W3, W4, W5, W6);
_R( _e, _a, _b, _c, _d, F2, 21, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 36, W7, W0, W1, W2, W3, W4, W5, W6);
_R( _d, _e, _a, _b, _c, F2, 22, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 36, W7, W0, W1, W2, W3, W4, W5, W6);
_R( _c, _d, _e, _a, _b, F2, 23, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 36, W7, W0, W1, W2, W3, W4, W5, W6);
#undef curK
#define curK qK3
_R( _b, _c, _d, _e, _a, F2, 24, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 40, W6, W7, W0, W1, W2, W3, W4, W5);
_R( _a, _b, _c, _d, _e, F2, 25, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 40, W6, W7, W0, W1, W2, W3, W4, W5);
_R( _e, _a, _b, _c, _d, F2, 26, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 40, W6, W7, W0, W1, W2, W3, W4, W5);
_R( _d, _e, _a, _b, _c, F2, 27, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 40, W6, W7, W0, W1, W2, W3, W4, W5);
_R( _c, _d, _e, _a, _b, F2, 28, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 44, W5, W6, W7, W0, W1, W2, W3, W4);
_R( _b, _c, _d, _e, _a, F2, 29, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 44, W5, W6, W7, W0, W1, W2, W3, W4);
_R( _a, _b, _c, _d, _e, F2, 30, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 44, W5, W6, W7, W0, W1, W2, W3, W4);
_R( _e, _a, _b, _c, _d, F2, 31, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 44, W5, W6, W7, W0, W1, W2, W3, W4);
_R( _d, _e, _a, _b, _c, F2, 32, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 48, W4, W5, W6, W7, W0, W1, W2, W3);
_R( _c, _d, _e, _a, _b, F2, 33, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 48, W4, W5, W6, W7, W0, W1, W2, W3);
_R( _b, _c, _d, _e, _a, F2, 34, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 48, W4, W5, W6, W7, W0, W1, W2, W3);
_R( _a, _b, _c, _d, _e, F2, 35, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 48, W4, W5, W6, W7, W0, W1, W2, W3);
_R( _e, _a, _b, _c, _d, F2, 36, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 52, W3, W4, W5, W6, W7, W0, W1, W2);
_R( _d, _e, _a, _b, _c, F2, 37, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 52, W3, W4, W5, W6, W7, W0, W1, W2);
_R( _c, _d, _e, _a, _b, F2, 38, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 52, W3, W4, W5, W6, W7, W0, W1, W2);
_R( _b, _c, _d, _e, _a, F2, 39, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 52, W3, W4, W5, W6, W7, W0, W1, W2);
_R( _a, _b, _c, _d, _e, F3, 40, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 56, W2, W3, W4, W5, W6, W7, W0, W1);
_R( _e, _a, _b, _c, _d, F3, 41, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 56, W2, W3, W4, W5, W6, W7, W0, W1);
_R( _d, _e, _a, _b, _c, F3, 42, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 56, W2, W3, W4, W5, W6, W7, W0, W1);
_R( _c, _d, _e, _a, _b, F3, 43, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 56, W2, W3, W4, W5, W6, W7, W0, W1);
#undef curK
#define curK qK4
_R( _b, _c, _d, _e, _a, F3, 44, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 60, W1, W2, W3, W4, W5, W6, W7, W0);
_R( _a, _b, _c, _d, _e, F3, 45, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 60, W1, W2, W3, W4, W5, W6, W7, W0);
_R( _e, _a, _b, _c, _d, F3, 46, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 60, W1, W2, W3, W4, W5, W6, W7, W0);
_R( _d, _e, _a, _b, _c, F3, 47, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 60, W1, W2, W3, W4, W5, W6, W7, W0);
_R( _c, _d, _e, _a, _b, F3, 48, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 64, W0, W1, W2, W3, W4, W5, W6, W7);
_R( _b, _c, _d, _e, _a, F3, 49, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 64, W0, W1, W2, W3, W4, W5, W6, W7);
_R( _a, _b, _c, _d, _e, F3, 50, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 64, W0, W1, W2, W3, W4, W5, W6, W7);
_R( _e, _a, _b, _c, _d, F3, 51, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 64, W0, W1, W2, W3, W4, W5, W6, W7);
_R( _d, _e, _a, _b, _c, F3, 52, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 68, W7, W0, W1, W2, W3, W4, W5, W6);
_R( _c, _d, _e, _a, _b, F3, 53, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 68, W7, W0, W1, W2, W3, W4, W5, W6);
_R( _b, _c, _d, _e, _a, F3, 54, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 68, W7, W0, W1, W2, W3, W4, W5, W6);
_R( _a, _b, _c, _d, _e, F3, 55, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 68, W7, W0, W1, W2, W3, W4, W5, W6);
_R( _e, _a, _b, _c, _d, F3, 56, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 72, W6, W7, W0, W1, W2, W3, W4, W5);
_R( _d, _e, _a, _b, _c, F3, 57, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 72, W6, W7, W0, W1, W2, W3, W4, W5);
_R( _c, _d, _e, _a, _b, F3, 58, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 72, W6, W7, W0, W1, W2, W3, W4, W5);
_R( _b, _c, _d, _e, _a, F3, 59, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 72, W6, W7, W0, W1, W2, W3, W4, W5);
subs RNBLKS, #1;
_R( _a, _b, _c, _d, _e, F4, 60, WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 76, W5, W6, W7, W0, W1, W2, W3, W4);
_R( _e, _a, _b, _c, _d, F4, 61, WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 76, W5, W6, W7, W0, W1, W2, W3, W4);
_R( _d, _e, _a, _b, _c, F4, 62, WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 76, W5, W6, W7, W0, W1, W2, W3, W4);
_R( _c, _d, _e, _a, _b, F4, 63, WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 76, W5, W6, W7, W0, W1, W2, W3, W4);
beq .Lend;
/* Transform 64-79 + Precalc 0-15 of next block. */
#undef curK
#define curK qK1
_R( _b, _c, _d, _e, _a, F4, 64, WPRECALC_00_15_0, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _a, _b, _c, _d, _e, F4, 65, WPRECALC_00_15_1, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _e, _a, _b, _c, _d, F4, 66, WPRECALC_00_15_2, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _d, _e, _a, _b, _c, F4, 67, WPRECALC_00_15_3, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _c, _d, _e, _a, _b, F4, 68, dummy, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _b, _c, _d, _e, _a, F4, 69, dummy, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _a, _b, _c, _d, _e, F4, 70, WPRECALC_00_15_4, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _e, _a, _b, _c, _d, F4, 71, WPRECALC_00_15_5, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _d, _e, _a, _b, _c, F4, 72, dummy, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _c, _d, _e, _a, _b, F4, 73, dummy, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _b, _c, _d, _e, _a, F4, 74, WPRECALC_00_15_6, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _a, _b, _c, _d, _e, F4, 75, WPRECALC_00_15_7, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _e, _a, _b, _c, _d, F4, 76, WPRECALC_00_15_8, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _d, _e, _a, _b, _c, F4, 77, WPRECALC_00_15_9, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _c, _d, _e, _a, _b, F4, 78, WPRECALC_00_15_10, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _b, _c, _d, _e, _a, F4, 79, WPRECALC_00_15_11, dummy, WPRECALC_00_15_12, _, _, _, _, _, _, _, _, _ );
/* Update the chaining variables. */
ldm RSTATE, {RT0-RT3};
add _a, RT0;
ldr RT0, [RSTATE, #state_h4];
add _b, RT1;
add _c, RT2;
add _d, RT3;
add _e, RT0;
stm RSTATE, {_a-_e};
b .Loop;
.ltorg
.Lend:
/* Transform 64-79 + Clear XMM registers. */
R( _b, _c, _d, _e, _a, F4, 64 );
R( _a, _b, _c, _d, _e, F4, 65 ); CLEAR_REG(tmp0);
R( _e, _a, _b, _c, _d, F4, 66 ); CLEAR_REG(tmp1);
R( _d, _e, _a, _b, _c, F4, 67 ); CLEAR_REG(W0);
R( _c, _d, _e, _a, _b, F4, 68 ); CLEAR_REG(W1);
R( _b, _c, _d, _e, _a, F4, 69 ); CLEAR_REG(W2);
R( _a, _b, _c, _d, _e, F4, 70 ); CLEAR_REG(W3);
R( _e, _a, _b, _c, _d, F4, 71 ); CLEAR_REG(W4);
R( _d, _e, _a, _b, _c, F4, 72 ); CLEAR_REG(W5);
R( _c, _d, _e, _a, _b, F4, 73 ); CLEAR_REG(W6);
R( _b, _c, _d, _e, _a, F4, 74 ); CLEAR_REG(W7);
R( _a, _b, _c, _d, _e, F4, 75 );
R( _e, _a, _b, _c, _d, F4, 76 );
R( _d, _e, _a, _b, _c, F4, 77 );
R( _c, _d, _e, _a, _b, F4, 78 );
R( _b, _c, _d, _e, _a, F4, 79 );
mov sp, ROLDSTACK;
/* Update the chaining variables. */
ldm RSTATE, {RT0-RT3};
add _a, RT0;
ldr RT0, [RSTATE, #state_h4];
add _b, RT1;
add _c, RT2;
add _d, RT3;
vpop {q4-q7};
add _e, RT0;
stm RSTATE, {_a-_e};
/* burn_stack */
mov r0, #(16*4 + 16*4 + 15);
pop {r4-r12, pc};
.Ldo_nothing:
mov r0, #0;
bx lr
.size _gcry_sha1_transform_armv7_neon,.-_gcry_sha1_transform_armv7_neon;
#endif
