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Diffstat (limited to 'libotr/libgcrypt-1.8.7/cipher/sha1-armv7-neon.S')
| -rw-r--r-- | libotr/libgcrypt-1.8.7/cipher/sha1-armv7-neon.S | 526 |
1 files changed, 526 insertions, 0 deletions
diff --git a/libotr/libgcrypt-1.8.7/cipher/sha1-armv7-neon.S b/libotr/libgcrypt-1.8.7/cipher/sha1-armv7-neon.S new file mode 100644 index 0000000..61cc541 --- /dev/null +++ b/libotr/libgcrypt-1.8.7/cipher/sha1-armv7-neon.S @@ -0,0 +1,526 @@ +/* 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 |