diff options
Diffstat (limited to 'libotr/libgcrypt-1.8.7/cipher/sha1-avx-bmi2-amd64.S')
| -rw-r--r-- | libotr/libgcrypt-1.8.7/cipher/sha1-avx-bmi2-amd64.S | 424 |
1 files changed, 424 insertions, 0 deletions
diff --git a/libotr/libgcrypt-1.8.7/cipher/sha1-avx-bmi2-amd64.S b/libotr/libgcrypt-1.8.7/cipher/sha1-avx-bmi2-amd64.S new file mode 100644 index 0000000..b267693 --- /dev/null +++ b/libotr/libgcrypt-1.8.7/cipher/sha1-avx-bmi2-amd64.S @@ -0,0 +1,424 @@ +/* sha1-avx-bmi2-amd64.S - Intel AVX/BMI2 accelerated SHA-1 transform function + * Copyright (C) 2013 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/>. + */ + +/* + * Intel SSSE3 accelerated SHA-1 implementation based on white paper: + * "Improving the Performance of the Secure Hash Algorithm (SHA-1)" + * http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1 + */ + +#ifdef __x86_64__ +#include <config.h> + +#if (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \ + defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS)) && \ + defined(HAVE_GCC_INLINE_ASM_BMI2) && \ + defined(HAVE_GCC_INLINE_ASM_AVX) && defined(USE_SHA1) + +#ifdef __PIC__ +# define RIP (%rip) +#else +# define RIP +#endif + + +#ifdef HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS +# define ELF(...) __VA_ARGS__ +#else +# define ELF(...) /*_*/ +#endif + + +/* Context structure */ + +#define state_h0 0 +#define state_h1 4 +#define state_h2 8 +#define state_h3 12 +#define state_h4 16 + + +/* Constants */ + +.text +#define K1 0x5A827999 +#define K2 0x6ED9EBA1 +#define K3 0x8F1BBCDC +#define K4 0xCA62C1D6 +.align 16 +.LK_XMM: +.LK1: .long K1, K1, K1, K1 +.LK2: .long K2, K2, K2, K2 +.LK3: .long K3, K3, K3, K3 +.LK4: .long K4, K4, K4, K4 + +.Lbswap_shufb_ctl: + .long 0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f + + +/* Register macros */ + +#define RSTATE %r8 +#define RDATA %r9 +#define ROLDSTACK %r10 +#define RNBLKS %r11 + +#define a %eax +#define b %ebx +#define c %ecx +#define d %edx +#define e %edi + +#define RT0 %esi +#define RT1 %ebp + +#define Wtmp0 %xmm0 +#define Wtmp1 %xmm1 + +#define W0 %xmm2 +#define W1 %xmm3 +#define W2 %xmm4 +#define W3 %xmm5 +#define W4 %xmm6 +#define W5 %xmm7 +#define W6 %xmm8 +#define W7 %xmm9 + +#define BSWAP_REG %xmm10 + + +/* Round function macros. */ + +#define WK(i) (((i) & 15) * 4)(%rsp) + +#define R_F1(a,b,c,d,e,i) \ + movl c, RT0; \ + andn d, b, RT1; \ + addl WK(i), e; \ + andl b, RT0; \ + rorxl $2, b, b; \ + addl RT1, e; \ + leal (RT0,e), e; \ + rorxl $27, a, RT1; \ + addl RT1, e; + +#define R_F2(a,b,c,d,e,i) \ + movl c, RT0; \ + addl WK(i), e; \ + xorl b, RT0; \ + rorxl $2, b, b; \ + xorl d, RT0; \ + leal (RT0,e), e; \ + rorxl $27, a, RT1; \ + addl RT1, e; + +#define R_F3(a,b,c,d,e,i) \ + movl c, RT0; \ + movl b, RT1; \ + xorl b, RT0; \ + andl c, RT1; \ + andl d, RT0; \ + addl RT1, e; \ + addl WK(i), e; \ + rorxl $2, b, b; \ + leal (RT0,e), e; \ + rorxl $27, a, RT1; \ + addl RT1, e; + +#define R_F4(a,b,c,d,e,i) R_F2(a,b,c,d,e,i) + +#define R(a,b,c,d,e,f,i) \ + R_##f(a,b,c,d,e,i) + + +/* Input expansion macros. */ + +#define W_PRECALC_00_15_0(i, W, tmp0) \ + vmovdqu (4*(i))(RDATA), tmp0; + +#define W_PRECALC_00_15_1(i, W, tmp0) \ + vpshufb BSWAP_REG, tmp0, W; + +#define W_PRECALC_00_15_2(i, W, tmp0) \ + vpaddd (.LK_XMM + ((i)/20)*16) RIP, W, tmp0; + +#define W_PRECALC_00_15_3(i, W, tmp0) \ + vmovdqa tmp0, WK(i&~3); + +#define W_PRECALC_16_31_0(i, W, W_m04, W_m08, W_m12, W_m16, tmp0, tmp1) \ + vpalignr $8, W_m16, W_m12, W; \ + vpsrldq $4, W_m04, tmp0; \ + vpxor W_m08, W, W; + +#define W_PRECALC_16_31_1(i, W, W_m04, W_m08, W_m12, W_m16, tmp0, tmp1) \ + vpxor W_m16, tmp0, tmp0; \ + vpxor tmp0, W, W; \ + vpslld $1, W, tmp0; \ + vpslldq $12, W, tmp1; \ + vpsrld $31, W, W; + +#define W_PRECALC_16_31_2(i, W, W_m04, W_m08, W_m12, W_m16, tmp0, tmp1) \ + vpor W, tmp0, tmp0; \ + vpsrld $30, tmp1, W; \ + vpslld $2, tmp1, tmp1; + +#define W_PRECALC_16_31_3(i, W, W_m04, W_m08, W_m12, W_m16, tmp0, tmp1) \ + vpxor W, tmp0, tmp0; \ + vpxor tmp1, tmp0, W; \ + vpaddd (.LK_XMM + ((i)/20)*16) RIP, W, tmp0; \ + vmovdqa tmp0, WK((i)&~3); + +#define W_PRECALC_32_79_0(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28, tmp0) \ + vpxor W_m28, W, W; \ + vpalignr $8, W_m08, W_m04, tmp0; + +#define W_PRECALC_32_79_1(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28, tmp0) \ + vpxor W_m16, W, W; \ + vpxor tmp0, W, W; + +#define W_PRECALC_32_79_2(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28, tmp0) \ + vpsrld $30, W, tmp0; \ + vpslld $2, W, W; + +#define W_PRECALC_32_79_3(i, W, W_m04, W_m08, W_m12, W_m16, W_m20, W_m24, W_m28, tmp0) \ + vpor W, tmp0, W; \ + vpaddd (.LK_XMM + ((i)/20)*16) RIP, W, tmp0; \ + vmovdqa tmp0, WK((i)&~3); + + +/* + * Transform nblks*64 bytes (nblks*16 32-bit words) at DATA. + * + * unsigned int + * _gcry_sha1_transform_amd64_avx_bmi2 (void *ctx, const unsigned char *data, + * size_t nblks) + */ +.globl _gcry_sha1_transform_amd64_avx_bmi2 +ELF(.type _gcry_sha1_transform_amd64_avx_bmi2,@function) +.align 16 +_gcry_sha1_transform_amd64_avx_bmi2: + /* input: + * %rdi: ctx, CTX + * %rsi: data (64*nblks bytes) + * %rdx: nblks + */ + + xorl %eax, %eax; + cmpq $0, %rdx; + jz .Lret; + + vzeroupper; + + movq %rdx, RNBLKS; + movq %rdi, RSTATE; + movq %rsi, RDATA; + pushq %rbx; + pushq %rbp; + + movq %rsp, ROLDSTACK; + + subq $(16*4), %rsp; + andq $(~31), %rsp; + + /* Get the values of the chaining variables. */ + movl state_h0(RSTATE), a; + movl state_h1(RSTATE), b; + movl state_h2(RSTATE), c; + movl state_h3(RSTATE), d; + movl state_h4(RSTATE), e; + + movdqa .Lbswap_shufb_ctl RIP, BSWAP_REG; + + /* Precalc 0-15. */ + W_PRECALC_00_15_0(0, W0, Wtmp0); + W_PRECALC_00_15_1(1, W0, Wtmp0); + W_PRECALC_00_15_2(2, W0, Wtmp0); + W_PRECALC_00_15_3(3, W0, Wtmp0); + W_PRECALC_00_15_0(4, W7, Wtmp0); + W_PRECALC_00_15_1(5, W7, Wtmp0); + W_PRECALC_00_15_2(6, W7, Wtmp0); + W_PRECALC_00_15_3(7, W7, Wtmp0); + W_PRECALC_00_15_0(8, W6, Wtmp0); + W_PRECALC_00_15_1(9, W6, Wtmp0); + W_PRECALC_00_15_2(10, W6, Wtmp0); + W_PRECALC_00_15_3(11, W6, Wtmp0); + W_PRECALC_00_15_0(12, W5, Wtmp0); + W_PRECALC_00_15_1(13, W5, Wtmp0); + W_PRECALC_00_15_2(14, W5, Wtmp0); + W_PRECALC_00_15_3(15, W5, Wtmp0); + +.align 8 +.Loop: + addq $64, RDATA; + + /* Transform 0-15 + Precalc 16-31. */ + R( a, b, c, d, e, F1, 0 ); W_PRECALC_16_31_0(16, W4, W5, W6, W7, W0, Wtmp0, Wtmp1); + R( e, a, b, c, d, F1, 1 ); W_PRECALC_16_31_1(17, W4, W5, W6, W7, W0, Wtmp0, Wtmp1); + R( d, e, a, b, c, F1, 2 ); W_PRECALC_16_31_2(18, W4, W5, W6, W7, W0, Wtmp0, Wtmp1); + R( c, d, e, a, b, F1, 3 ); W_PRECALC_16_31_3(19, W4, W5, W6, W7, W0, Wtmp0, Wtmp1); + R( b, c, d, e, a, F1, 4 ); W_PRECALC_16_31_0(20, W3, W4, W5, W6, W7, Wtmp0, Wtmp1); + R( a, b, c, d, e, F1, 5 ); W_PRECALC_16_31_1(21, W3, W4, W5, W6, W7, Wtmp0, Wtmp1); + R( e, a, b, c, d, F1, 6 ); W_PRECALC_16_31_2(22, W3, W4, W5, W6, W7, Wtmp0, Wtmp1); + R( d, e, a, b, c, F1, 7 ); W_PRECALC_16_31_3(23, W3, W4, W5, W6, W7, Wtmp0, Wtmp1); + R( c, d, e, a, b, F1, 8 ); W_PRECALC_16_31_0(24, W2, W3, W4, W5, W6, Wtmp0, Wtmp1); + R( b, c, d, e, a, F1, 9 ); W_PRECALC_16_31_1(25, W2, W3, W4, W5, W6, Wtmp0, Wtmp1); + R( a, b, c, d, e, F1, 10 ); W_PRECALC_16_31_2(26, W2, W3, W4, W5, W6, Wtmp0, Wtmp1); + R( e, a, b, c, d, F1, 11 ); W_PRECALC_16_31_3(27, W2, W3, W4, W5, W6, Wtmp0, Wtmp1); + R( d, e, a, b, c, F1, 12 ); W_PRECALC_16_31_0(28, W1, W2, W3, W4, W5, Wtmp0, Wtmp1); + R( c, d, e, a, b, F1, 13 ); W_PRECALC_16_31_1(29, W1, W2, W3, W4, W5, Wtmp0, Wtmp1); + R( b, c, d, e, a, F1, 14 ); W_PRECALC_16_31_2(30, W1, W2, W3, W4, W5, Wtmp0, Wtmp1); + R( a, b, c, d, e, F1, 15 ); W_PRECALC_16_31_3(31, W1, W2, W3, W4, W5, Wtmp0, Wtmp1); + + /* Transform 16-63 + Precalc 32-79. */ + R( e, a, b, c, d, F1, 16 ); W_PRECALC_32_79_0(32, W0, W1, W2, W3, W4, W5, W6, W7, Wtmp0); + R( d, e, a, b, c, F1, 17 ); W_PRECALC_32_79_1(33, W0, W1, W2, W3, W4, W5, W6, W7, Wtmp0); + R( c, d, e, a, b, F1, 18 ); W_PRECALC_32_79_2(34, W0, W1, W2, W3, W4, W5, W6, W7, Wtmp0); + R( b, c, d, e, a, F1, 19 ); W_PRECALC_32_79_3(35, W0, W1, W2, W3, W4, W5, W6, W7, Wtmp0); + R( a, b, c, d, e, F2, 20 ); W_PRECALC_32_79_0(36, W7, W0, W1, W2, W3, W4, W5, W6, Wtmp0); + R( e, a, b, c, d, F2, 21 ); W_PRECALC_32_79_1(37, W7, W0, W1, W2, W3, W4, W5, W6, Wtmp0); + R( d, e, a, b, c, F2, 22 ); W_PRECALC_32_79_2(38, W7, W0, W1, W2, W3, W4, W5, W6, Wtmp0); + R( c, d, e, a, b, F2, 23 ); W_PRECALC_32_79_3(39, W7, W0, W1, W2, W3, W4, W5, W6, Wtmp0); + R( b, c, d, e, a, F2, 24 ); W_PRECALC_32_79_0(40, W6, W7, W0, W1, W2, W3, W4, W5, Wtmp0); + R( a, b, c, d, e, F2, 25 ); W_PRECALC_32_79_1(41, W6, W7, W0, W1, W2, W3, W4, W5, Wtmp0); + R( e, a, b, c, d, F2, 26 ); W_PRECALC_32_79_2(42, W6, W7, W0, W1, W2, W3, W4, W5, Wtmp0); + R( d, e, a, b, c, F2, 27 ); W_PRECALC_32_79_3(43, W6, W7, W0, W1, W2, W3, W4, W5, Wtmp0); + R( c, d, e, a, b, F2, 28 ); W_PRECALC_32_79_0(44, W5, W6, W7, W0, W1, W2, W3, W4, Wtmp0); + R( b, c, d, e, a, F2, 29 ); W_PRECALC_32_79_1(45, W5, W6, W7, W0, W1, W2, W3, W4, Wtmp0); + R( a, b, c, d, e, F2, 30 ); W_PRECALC_32_79_2(46, W5, W6, W7, W0, W1, W2, W3, W4, Wtmp0); + R( e, a, b, c, d, F2, 31 ); W_PRECALC_32_79_3(47, W5, W6, W7, W0, W1, W2, W3, W4, Wtmp0); + R( d, e, a, b, c, F2, 32 ); W_PRECALC_32_79_0(48, W4, W5, W6, W7, W0, W1, W2, W3, Wtmp0); + R( c, d, e, a, b, F2, 33 ); W_PRECALC_32_79_1(49, W4, W5, W6, W7, W0, W1, W2, W3, Wtmp0); + R( b, c, d, e, a, F2, 34 ); W_PRECALC_32_79_2(50, W4, W5, W6, W7, W0, W1, W2, W3, Wtmp0); + R( a, b, c, d, e, F2, 35 ); W_PRECALC_32_79_3(51, W4, W5, W6, W7, W0, W1, W2, W3, Wtmp0); + R( e, a, b, c, d, F2, 36 ); W_PRECALC_32_79_0(52, W3, W4, W5, W6, W7, W0, W1, W2, Wtmp0); + R( d, e, a, b, c, F2, 37 ); W_PRECALC_32_79_1(53, W3, W4, W5, W6, W7, W0, W1, W2, Wtmp0); + R( c, d, e, a, b, F2, 38 ); W_PRECALC_32_79_2(54, W3, W4, W5, W6, W7, W0, W1, W2, Wtmp0); + R( b, c, d, e, a, F2, 39 ); W_PRECALC_32_79_3(55, W3, W4, W5, W6, W7, W0, W1, W2, Wtmp0); + R( a, b, c, d, e, F3, 40 ); W_PRECALC_32_79_0(56, W2, W3, W4, W5, W6, W7, W0, W1, Wtmp0); + R( e, a, b, c, d, F3, 41 ); W_PRECALC_32_79_1(57, W2, W3, W4, W5, W6, W7, W0, W1, Wtmp0); + R( d, e, a, b, c, F3, 42 ); W_PRECALC_32_79_2(58, W2, W3, W4, W5, W6, W7, W0, W1, Wtmp0); + R( c, d, e, a, b, F3, 43 ); W_PRECALC_32_79_3(59, W2, W3, W4, W5, W6, W7, W0, W1, Wtmp0); + R( b, c, d, e, a, F3, 44 ); W_PRECALC_32_79_0(60, W1, W2, W3, W4, W5, W6, W7, W0, Wtmp0); + R( a, b, c, d, e, F3, 45 ); W_PRECALC_32_79_1(61, W1, W2, W3, W4, W5, W6, W7, W0, Wtmp0); + R( e, a, b, c, d, F3, 46 ); W_PRECALC_32_79_2(62, W1, W2, W3, W4, W5, W6, W7, W0, Wtmp0); + R( d, e, a, b, c, F3, 47 ); W_PRECALC_32_79_3(63, W1, W2, W3, W4, W5, W6, W7, W0, Wtmp0); + R( c, d, e, a, b, F3, 48 ); W_PRECALC_32_79_0(64, W0, W1, W2, W3, W4, W5, W6, W7, Wtmp0); + R( b, c, d, e, a, F3, 49 ); W_PRECALC_32_79_1(65, W0, W1, W2, W3, W4, W5, W6, W7, Wtmp0); + R( a, b, c, d, e, F3, 50 ); W_PRECALC_32_79_2(66, W0, W1, W2, W3, W4, W5, W6, W7, Wtmp0); + R( e, a, b, c, d, F3, 51 ); W_PRECALC_32_79_3(67, W0, W1, W2, W3, W4, W5, W6, W7, Wtmp0); + R( d, e, a, b, c, F3, 52 ); W_PRECALC_32_79_0(68, W7, W0, W1, W2, W3, W4, W5, W6, Wtmp0); + R( c, d, e, a, b, F3, 53 ); W_PRECALC_32_79_1(69, W7, W0, W1, W2, W3, W4, W5, W6, Wtmp0); + R( b, c, d, e, a, F3, 54 ); W_PRECALC_32_79_2(70, W7, W0, W1, W2, W3, W4, W5, W6, Wtmp0); + R( a, b, c, d, e, F3, 55 ); W_PRECALC_32_79_3(71, W7, W0, W1, W2, W3, W4, W5, W6, Wtmp0); + R( e, a, b, c, d, F3, 56 ); W_PRECALC_32_79_0(72, W6, W7, W0, W1, W2, W3, W4, W5, Wtmp0); + R( d, e, a, b, c, F3, 57 ); W_PRECALC_32_79_1(73, W6, W7, W0, W1, W2, W3, W4, W5, Wtmp0); + R( c, d, e, a, b, F3, 58 ); W_PRECALC_32_79_2(74, W6, W7, W0, W1, W2, W3, W4, W5, Wtmp0); + R( b, c, d, e, a, F3, 59 ); W_PRECALC_32_79_3(75, W6, W7, W0, W1, W2, W3, W4, W5, Wtmp0); + R( a, b, c, d, e, F4, 60 ); W_PRECALC_32_79_0(76, W5, W6, W7, W0, W1, W2, W3, W4, Wtmp0); + R( e, a, b, c, d, F4, 61 ); W_PRECALC_32_79_1(77, W5, W6, W7, W0, W1, W2, W3, W4, Wtmp0); + R( d, e, a, b, c, F4, 62 ); W_PRECALC_32_79_2(78, W5, W6, W7, W0, W1, W2, W3, W4, Wtmp0); + R( c, d, e, a, b, F4, 63 ); W_PRECALC_32_79_3(79, W5, W6, W7, W0, W1, W2, W3, W4, Wtmp0); + + decq RNBLKS; + jz .Lend; + + /* Transform 64-79 + Precalc 0-15 of next block. */ + R( b, c, d, e, a, F4, 64 ); W_PRECALC_00_15_0(0, W0, Wtmp0); + R( a, b, c, d, e, F4, 65 ); W_PRECALC_00_15_1(1, W0, Wtmp0); + R( e, a, b, c, d, F4, 66 ); W_PRECALC_00_15_2(2, W0, Wtmp0); + R( d, e, a, b, c, F4, 67 ); W_PRECALC_00_15_3(3, W0, Wtmp0); + R( c, d, e, a, b, F4, 68 ); W_PRECALC_00_15_0(4, W7, Wtmp0); + R( b, c, d, e, a, F4, 69 ); W_PRECALC_00_15_1(5, W7, Wtmp0); + R( a, b, c, d, e, F4, 70 ); W_PRECALC_00_15_2(6, W7, Wtmp0); + R( e, a, b, c, d, F4, 71 ); W_PRECALC_00_15_3(7, W7, Wtmp0); + R( d, e, a, b, c, F4, 72 ); W_PRECALC_00_15_0(8, W6, Wtmp0); + R( c, d, e, a, b, F4, 73 ); W_PRECALC_00_15_1(9, W6, Wtmp0); + R( b, c, d, e, a, F4, 74 ); W_PRECALC_00_15_2(10, W6, Wtmp0); + R( a, b, c, d, e, F4, 75 ); W_PRECALC_00_15_3(11, W6, Wtmp0); + R( e, a, b, c, d, F4, 76 ); W_PRECALC_00_15_0(12, W5, Wtmp0); + R( d, e, a, b, c, F4, 77 ); W_PRECALC_00_15_1(13, W5, Wtmp0); + R( c, d, e, a, b, F4, 78 ); + addl state_h0(RSTATE), a; W_PRECALC_00_15_2(14, W5, Wtmp0); + R( b, c, d, e, a, F4, 79 ); W_PRECALC_00_15_3(15, W5, Wtmp0); + + /* Update the chaining variables. */ + addl state_h3(RSTATE), d; + addl state_h2(RSTATE), c; + addl state_h1(RSTATE), b; + addl state_h4(RSTATE), e; + + movl d, state_h3(RSTATE); + movl c, state_h2(RSTATE); + movl b, state_h1(RSTATE); + movl a, state_h0(RSTATE); + movl e, state_h4(RSTATE); + + jmp .Loop; + +.align 16 +.Lend: + vzeroall; + + /* Transform 64-79. */ + R( b, c, d, e, a, F4, 64 ); + R( a, b, c, d, e, F4, 65 ); + R( e, a, b, c, d, F4, 66 ); + R( d, e, a, b, c, F4, 67 ); + R( c, d, e, a, b, F4, 68 ); + R( b, c, d, e, a, F4, 69 ); + R( a, b, c, d, e, F4, 70 ); + R( e, a, b, c, d, F4, 71 ); + R( d, e, a, b, c, F4, 72 ); + R( c, d, e, a, b, F4, 73 ); + R( b, c, d, e, a, F4, 74 ); + 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 ); + addl state_h0(RSTATE), a; + R( b, c, d, e, a, F4, 79 ); + + /* Update the chaining variables. */ + addl state_h3(RSTATE), d; + addl state_h2(RSTATE), c; + addl state_h1(RSTATE), b; + addl state_h4(RSTATE), e; + + movl d, state_h3(RSTATE); + movl c, state_h2(RSTATE); + movl b, state_h1(RSTATE); + movl a, state_h0(RSTATE); + movl e, state_h4(RSTATE); + + movq ROLDSTACK, %rsp; + + popq %rbp; + popq %rbx; + + /* burn_stack */ + movl $(16*4 + 2*8 + 31), %eax; + +.Lret: + ret; + +#endif +#endif |