/**
 * vec - a tiny SIMD vector library in C99
 * 
 * Copyright (c) 2024 Paper
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
**/

#include "vec/impl/x86/sse3.h"

#include <pmmintrin.h>

/* SSE3 has a slightly more optimized load function */

#define VEC_SSE2_DEFINE_OPERATIONS_SIGN(sign, bits, size) \
	union v##sign##int##bits##x##size##_impl_data { \
		v##sign##int##bits##x##size vec; \
		__m128i sse; \
	}; \
	\
	VEC_STATIC_ASSERT(VEC_ALIGNOF(__m128i) <= VEC_ALIGNOF(v##sign##int##bits##x##size), "vec: v" #sign "int" #bits "x" #size " alignment needs to be expanded to fit intrinsic type size"); \
	VEC_STATIC_ASSERT(sizeof(__m128i) <= sizeof(v##sign##int##bits##x##size), "vec: v" #sign "int" #bits "x" #size " needs to be expanded to fit intrinsic type size"); \
	\
	VEC_FUNC_IMPL v##sign##int##bits##x##size v##sign##int##bits##x##size##_sse2_load(const vec_##sign##int##bits in[size]) \
	{ \
		union v##sign##int##bits##x##size##_impl_data vec; \
		vec.sse = _mm_lddqu_si128((const __m128i *)in); \
		return vec.vec; \
	} \
	\
	const v##sign##int##bits##x##size##_impl v##sign##int##bits##x##size##_impl_sse3 = { \
		.load = v##sign##int##bits##x##size##_sse2_load, \
	};

#define VEC_SSE2_DEFINE_OPERATIONS(bits, size) \
	VEC_SSE2_DEFINE_OPERATIONS_SIGN(u, bits, size) \
	VEC_SSE2_DEFINE_OPERATIONS_SIGN( , bits, size)

VEC_SSE2_DEFINE_OPERATIONS(8, 16)
VEC_SSE2_DEFINE_OPERATIONS(16, 8)
VEC_SSE2_DEFINE_OPERATIONS(32, 4)
VEC_SSE2_DEFINE_OPERATIONS(64, 2)