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sse: optimize glm_mat2_mul_sse2 with sse

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Recep Aslantas
2021-05-01 03:44:04 +03:00
parent 2be6ac949b
commit faf6186c29
1 changed files with 7 additions and 4 deletions
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11
include/cglm/simd/sse2/mat2.h
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@@ -15,20 +15,23 @@
CGLM_INLINE
void
glm_mat2_mul_sse2(mat2 m1, mat2 m2, mat2 dest) {
__m128 x0, x1, x2;
__m128 x0, x1, x2, x3, x4;
x1 = glmm_load(m1[0]); /* d c b a */
x2 = glmm_load(m2[0]); /* h g f e */
x3 = glmm_shuff1(x2, 2, 2, 0, 0);
x4 = glmm_shuff1(x2, 3, 3, 1, 1);
x0 = _mm_movelh_ps(x1, x1);
x2 = _mm_movehl_ps(x1, x1);
/*
dest[0][0] = a * e + c * f;
dest[0][1] = b * e + d * f;
dest[1][0] = a * g + c * h;
dest[1][1] = b * g + d * h;
*/
x0 = glmm_fmadd(_mm_movelh_ps(x1, x1), glmm_shuff1(x2, 2, 2, 0, 0),
_mm_mul_ps(_mm_movehl_ps(x1, x1),
glmm_shuff1(x2, 3, 3, 1, 1)));
x0 = glmm_fmadd(x0, x3, _mm_mul_ps(x2, x4));
glmm_store(dest[0], x0);
}