Viewing file:  sha1rnds4-2.c (1.86 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O2 -msha" } */
/* { dg-require-effective-target sha } */
#include "sha-check.h"
#include "m128-check.h"
#include <x86intrin.h>
#include <immintrin.h>
static int
f0 (int b, int c, int d)
{
return (b & c) ^ (~b & d);
}
static int
f1 (int b, int c, int d)
{
return b ^ c ^ d;
}
static int
f2 (int b, int c, int d)
{
return (b & c) ^ (b & d) ^ (c & d);
}
int (*f_arr[4])(int, int, int) = { f0, f1, f2, f1 };
const int k_arr[4] = { 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xCA62C1D6 };
static void
compute_sha1rnds4 (int *src1, int *src2, int imm, int *res)
{
int k = k_arr[imm];
int (*f)(int, int, int) = f_arr[imm];
int w[4] = { src2[3], src2[2], src2[1], src2[0] };
int a[5], b[5], c[5], d[5], e[5];
a[0] = src1[3];
b[0] = src1[2];
c[0] = src1[1];
d[0] = src1[0];
e[0] = 0;
int i;
for (i = 0; i <= 3; i++)
{
a[i+1] = f(b[i], c[i], d[i]) + __rold (a[i], 5) + w[i] + e[i] + k;
b[i+1] = a[i];
c[i+1] = __rold (b[i], 30);
d[i+1] = c[i];
e[i+1] = d[i];
}
res[0] = d[4];
res[1] = c[4];
res[2] = b[4];
res[3] = a[4];
}
static void
sha_test (void)
{
int imm;
union128i_d s1, s2, res;
int res_ref[4];
s1.x = _mm_set_epi32 (111, 222, 333, 444);
s2.x = _mm_set_epi32 (555, 666, 777, 888);
res.x = _mm_sha1rnds4_epu32 (s1.x, s2.x, 0);
compute_sha1rnds4 (s1.a, s2.a, 0, res_ref);
if (check_union128i_d (res, res_ref))
abort ();
res.x = _mm_sha1rnds4_epu32 (s1.x, s2.x, 1);
compute_sha1rnds4 (s1.a, s2.a, 1, res_ref);
if (check_union128i_d (res, res_ref))
abort ();
res.x = _mm_sha1rnds4_epu32 (s1.x, s2.x, 2);
compute_sha1rnds4 (s1.a, s2.a, 2, res_ref);
if (check_union128i_d (res, res_ref))
abort ();
res.x = _mm_sha1rnds4_epu32 (s1.x, s2.x, 3);
compute_sha1rnds4 (s1.a, s2.a, 3, res_ref);
if (check_union128i_d (res, res_ref))
abort ();
}
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