qf/quakeforge
0
0
Fork 0
mirror of https://git.code.sf.net/p/quake/quakeforge synced 2024-11-10 23:32:09 +00:00
Code Issues Projects Releases Packages Wiki Activity

Properly count users of a tempory variable.

Browse source 
The dags code isn't the only place that creates temporary variables, so
count them as they go into a statement rather than when they're created.
This fixes the temp underflows.
This commit is contained in:
Bill Currie 2012-11-18 20:27:26 +09:00
parent 0c3aeb30aa
commit 3d1792d2fc
1 changed files with 11 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
tools/qfcc/source/dags.c
View file

@ -420,7 +420,18 @@ dag_create (flownode_t *flownode)
static statement_t *
build_statement (const char *opcode, operand_t **operands, expr_t *expr)
{
int i;
operand_t *op;
statement_t *st = new_statement (st_none, opcode, expr);
for (i = 0; i < 3; i++) {
if ((op = operands[i])) {
while (op->op_type == op_alias)
op = op->o.alias;
if (op->op_type == op_temp)
op->o.tempop.users++;
}
}
st->opa = operands[0];
st->opb = operands[1];
st->opc = operands[2];
@ -500,8 +511,6 @@ make_operand (dag_t *dag, sblock_t *block, const dagnode_t *dagnode, int index)
op = dagnode->children[index]->value;
while (op->op_type == op_alias)
op = op->o.alias;
if (op->op_type == op_temp)
op->o.tempop.users++;
op = fix_op_type (op, dagnode->types[index]);
return op;
}
@ -529,7 +538,6 @@ dag_gencode (dag_t *dag, sblock_t *block, dagnode_t *dagnode)
operands[1] = make_operand (dag, block, dagnode, 1);
if (!(var_iter = set_first (dagnode->identifiers))) {
operands[2] = temp_operand (get_type (dagnode->label->expr));
operands[2]->o.tempop.users++;
} else {
daglabel_t *var = dag->labels[var_iter->member];
etype_t type = extract_type (dagnode->label->expr);