From 1f8023e18a6dc7b950826810b392fdd46bcb0d45 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Wed, 4 May 2016 14:33:27 +0200 Subject: Optimise zand, zor, and zxor MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/zxor.c | 31 ++++++------------------------- 1 file changed, 6 insertions(+), 25 deletions(-) (limited to 'src/zxor.c') diff --git a/src/zxor.c b/src/zxor.c index 601a947..3f2ca5c 100644 --- a/src/zxor.c +++ b/src/zxor.c @@ -2,27 +2,6 @@ #include "internals.h" -O2 static inline void -zxor_impl_3(register zahl_char_t *restrict a, - register const zahl_char_t *restrict b, size_t n) -{ - size_t i; - for (i = 0; i < n; i++) - a[i] ^= b[i]; -} - -static inline void -zxor_impl_5(register zahl_char_t *restrict a, - register const zahl_char_t *restrict b, size_t n, - register const zahl_char_t *restrict c, size_t m) -{ - size_t i; - for (i = 0; i < n; i++) - a[i] = b[i] ^ c[i]; - for (; i < m; i++) - a[i] = c[i]; -} - void zxor(z_t a, z_t b, z_t c) { @@ -47,17 +26,19 @@ zxor(z_t a, z_t b, z_t c) ENSURE_SIZE(a, m); if (a == b) { - zxor_impl_3(a->chars, cc, n); + ZMEM_OP(a->chars, a->chars, cc, n, ^); if (a->used < cn) zmemcpy_range(a->chars, cc, n, m); } else if (unlikely(a == c)) { - zxor_impl_3(a->chars, bc, n); + ZMEM_OP(a->chars, b->chars, cc, n, ^); if (a->used < bn) zmemcpy_range(a->chars, bc, n, m); } else if (m == bn) { - zxor_impl_5(a->chars, cc, n, bc, m); + ZMEM_OP(a->chars, c->chars, b->chars, n, ^); + zmemcpy_range(a->chars, b->chars, n, m); } else { - zxor_impl_5(a->chars, bc, n, cc, m); + ZMEM_OP(a->chars, b->chars, c->chars, n, ^); + zmemcpy_range(a->chars, c->chars, n, m); } a->used = m; -- cgit v1.2.3-70-g09d2