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Handle vector expressions as sub-expressions

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Now my little game builds again :)
This commit is contained in:
Bill Currie 2019-06-10 15:50:35 +09:00
parent 49ed4310fd
commit 08ab42fc15
3 changed files with 65 additions and 3 deletions
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1
tools/qfcc/source/expr.c
View file

@ -210,6 +210,7 @@ convert_vector (expr_t *e)
// Either v or s is not constant, so can't convert to a quaternion
// constant.
// Rebuild the list in case v or s is a new expression
// the list will always be v, s
s->next = 0;
v->next = s;
e->e.vector.list = v;

63
tools/qfcc/source/statements.c
View file

@ -984,6 +984,67 @@ expr_temp (sblock_t *sblock, expr_t *e, operand_t **op)
return sblock;
}
static sblock_t *
expr_vector_e (sblock_t *sblock, expr_t *e, operand_t **op)
{
expr_t *x, *y, *z, *w;
expr_t *s, *v;
expr_t *ax, *ay, *az, *aw;
expr_t *as, *av;
expr_t *tmp;
type_t *vec_type = get_type(e);
tmp = new_temp_def_expr(vec_type);
if (vec_type == &type_vector) {
// guaranteed to have three elements
x = e->e.vector.list;
y = x->next;
z = y->next;
ax = new_name_expr ("x");
ay = new_name_expr ("y");
az = new_name_expr ("z");
ax = assign_expr (field_expr (tmp, ax), x);
ay = assign_expr (field_expr (tmp, ay), y);
az = assign_expr (field_expr (tmp, az), z);
sblock = statement_slist (sblock, ax);
sblock = statement_slist (sblock, ay);
sblock = statement_slist (sblock, az);
} else {
// guaranteed to have two or four elements
if (e->e.vector.list->next->next) {
// four vals: x, y, z, w
x = e->e.vector.list;
y = x->next;
z = y->next;
w = z->next;
ax = new_name_expr ("x");
ay = new_name_expr ("y");
az = new_name_expr ("z");
aw = new_name_expr ("w");
ax = assign_expr (field_expr (tmp, ax), x);
ay = assign_expr (field_expr (tmp, ay), y);
az = assign_expr (field_expr (tmp, az), z);
aw = assign_expr (field_expr (tmp, aw), w);
sblock = statement_slist (sblock, ax);
sblock = statement_slist (sblock, ay);
sblock = statement_slist (sblock, az);
sblock = statement_slist (sblock, aw);
} else {
// v, s
v = e->e.vector.list;
s = v->next;
av = new_name_expr ("v");
as = new_name_expr ("s");
av = assign_expr (field_expr (tmp, av), v);
as = assign_expr (field_expr (tmp, as), s);
sblock = statement_slist (sblock, av);
sblock = statement_slist (sblock, as);
}
}
sblock = statement_subexpr (sblock, tmp, op);
return sblock;
}
static sblock_t *
expr_value (sblock_t *sblock, expr_t *e, operand_t **op)
{
@ -1005,7 +1066,7 @@ statement_subexpr (sblock_t *sblock, expr_t *e, operand_t **op)
expr_uexpr,
expr_symbol,
expr_temp,
0, // ex_vector
expr_vector_e, // ex_vector
0, // ex_nil
expr_value,
};

4
tools/qfcc/test/vecexpr.r
View file

@ -13,11 +13,11 @@ t2(float x)
vector
t3(float x)
{
return [x, t2(9).z, x];
return [x, t2(9).z, x] * 2;
}
int
main ()
{
return t3(5) == [5, 9, 5] ? 0 : 1;
return t3(5) == [10, 18, 10] ? 0 : 1;
}