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[qfcc] Analyze tempop pointers in move/memset statements

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This commit is contained in:
Bill Currie 2020-03-17 15:48:06 +09:00
parent 6ec92fb83b
commit fa2cbc72d8
1 changed files with 21 additions and 13 deletions
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34
tools/qfcc/source/flow.c
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@ -1054,20 +1054,28 @@ static int
flow_analyize_pointer_operand (operand_t *ptrop, set_t *def,
operand_t *operands[4])
{
if (ptrop->op_type == op_value
&& ptrop->o.value->lltype == ev_pointer
&& ptrop->o.value->v.pointer.def) {
operand_t *op;
def_t *alias;
if (ptrop->op_type == op_value && ptrop->o.value->lltype == ev_pointer) {
ex_pointer_t *ptr = &ptrop->o.value->v.pointer;
alias = alias_def (ptr->def, ptr->type, ptr->val);
op = def_operand (alias, ptr->type, ptrop->expr);
flow_add_op_var (def, op, 0);
if (operands)
operands[0] = op;
else
free_operand (op);
return 1;
operand_t *op = 0;
if (ptrop->o.value->v.pointer.def) {
def_t *alias;
alias = alias_def (ptr->def, ptr->type, ptr->val);
op = def_operand (alias, ptr->type, ptrop->expr);
}
if (ptrop->o.value->v.pointer.tempop) {
op = ptrop->o.value->v.pointer.tempop;
}
if (op) {
flow_add_op_var (def, op, 0);
if (operands) {
operands[0] = op;
} else {
if (op->op_type != op_temp) {
free_operand (op);
}
}
return 1;
}
}
return 0;
}