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https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-10 23:32:09 +00:00
Handle vector expressions as sub-expressions
Now my little game builds again :)
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3 changed files with 65 additions and 3 deletions
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@ -210,6 +210,7 @@ convert_vector (expr_t *e)
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// Either v or s is not constant, so can't convert to a quaternion
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// constant.
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// Rebuild the list in case v or s is a new expression
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// the list will always be v, s
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s->next = 0;
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v->next = s;
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e->e.vector.list = v;
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@ -984,6 +984,67 @@ expr_temp (sblock_t *sblock, expr_t *e, operand_t **op)
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return sblock;
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}
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static sblock_t *
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expr_vector_e (sblock_t *sblock, expr_t *e, operand_t **op)
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{
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expr_t *x, *y, *z, *w;
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expr_t *s, *v;
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expr_t *ax, *ay, *az, *aw;
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expr_t *as, *av;
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expr_t *tmp;
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type_t *vec_type = get_type(e);
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tmp = new_temp_def_expr(vec_type);
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if (vec_type == &type_vector) {
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// guaranteed to have three elements
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x = e->e.vector.list;
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y = x->next;
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z = y->next;
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ax = new_name_expr ("x");
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ay = new_name_expr ("y");
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az = new_name_expr ("z");
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ax = assign_expr (field_expr (tmp, ax), x);
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ay = assign_expr (field_expr (tmp, ay), y);
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az = assign_expr (field_expr (tmp, az), z);
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sblock = statement_slist (sblock, ax);
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sblock = statement_slist (sblock, ay);
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sblock = statement_slist (sblock, az);
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} else {
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// guaranteed to have two or four elements
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if (e->e.vector.list->next->next) {
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// four vals: x, y, z, w
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x = e->e.vector.list;
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y = x->next;
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z = y->next;
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w = z->next;
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ax = new_name_expr ("x");
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ay = new_name_expr ("y");
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az = new_name_expr ("z");
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aw = new_name_expr ("w");
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ax = assign_expr (field_expr (tmp, ax), x);
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ay = assign_expr (field_expr (tmp, ay), y);
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az = assign_expr (field_expr (tmp, az), z);
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aw = assign_expr (field_expr (tmp, aw), w);
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sblock = statement_slist (sblock, ax);
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sblock = statement_slist (sblock, ay);
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sblock = statement_slist (sblock, az);
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sblock = statement_slist (sblock, aw);
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} else {
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// v, s
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v = e->e.vector.list;
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s = v->next;
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av = new_name_expr ("v");
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as = new_name_expr ("s");
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av = assign_expr (field_expr (tmp, av), v);
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as = assign_expr (field_expr (tmp, as), s);
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sblock = statement_slist (sblock, av);
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sblock = statement_slist (sblock, as);
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}
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}
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sblock = statement_subexpr (sblock, tmp, op);
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return sblock;
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}
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static sblock_t *
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expr_value (sblock_t *sblock, expr_t *e, operand_t **op)
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{
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@ -1005,7 +1066,7 @@ statement_subexpr (sblock_t *sblock, expr_t *e, operand_t **op)
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expr_uexpr,
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expr_symbol,
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expr_temp,
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0, // ex_vector
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expr_vector_e, // ex_vector
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0, // ex_nil
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expr_value,
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};
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@ -13,11 +13,11 @@ t2(float x)
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vector
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t3(float x)
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{
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return [x, t2(9).z, x];
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return [x, t2(9).z, x] * 2;
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}
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int
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main ()
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{
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return t3(5) == [5, 9, 5] ? 0 : 1;
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return t3(5) == [10, 18, 10] ? 0 : 1;
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}
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