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[qfcc] Optimize matrix construction from vectors

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When the number of supplied vectors matches the number of columns in the
matrix and all vectors have the same width as the number of rows in the
matrix, there's no need to expand the vectors into components only to be
gathered again.
This commit is contained in:
Bill Currie 2024-12-05 10:31:32 +09:00
parent 14e39627cc
commit 81aa77b142
1 changed files with 18 additions and 0 deletions
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18
tools/qfcc/source/expr_construct.c
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@ -229,6 +229,24 @@ math_constructor (const type_t *type, const expr_t *params, const expr_t *e)
return construct_matrix (type, param_exprs[0], e);
}
}
if (is_matrix (type) && num_param == type_cols (type)) {
bool by_vector = true;
for (int i = 0; i < type_cols (type); i++) {
auto ptype = get_type (param_exprs[i]);
if (!is_nonscalar (ptype)
|| type_width (ptype) != type_rows (type)) {
by_vector = false;
break;
}
}
if (by_vector) {
auto mat = new_expr ();
mat->type = ex_vector;
mat->vector.type = type;
list_gather (&mat->vector.list, param_exprs, type_cols (type));
return mat;
}
}
return construct_by_components (type, params, e);
}