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Record MOVEP's destination pointer only when variable.

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If MOVEP's destination is variable, then the actual destination isn't (at
this stage) knowable, so it can't be attached to the dagnode and thus must
be a child.
This commit is contained in:
Bill Currie 2012-12-20 19:08:50 +09:00
parent 4d587eaa25
commit a51ca44b05
1 changed files with 17 additions and 13 deletions
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30
tools/qfcc/source/flow.c
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@ -798,18 +798,22 @@ flow_analyze_statement (statement_t *s, set_t *use, set_t *def, set_t *kill,
flow_add_op_var (use, s->opb);
if (!strcmp (s->opcode, "<MOVE>")) {
flow_add_op_var (def, s->opc);
} else if (!strcmp (s->opcode, "<MOVEP>")
&& s->opc->op_type == op_value
&& s->opc->o.value->type == ev_pointer
&& s->opc->o.value->v.pointer.def) {
operand_t *op;
ex_pointer_t *ptr = &s->opc->o.value->v.pointer;
op = def_operand (ptr->def, ptr->type);
flow_add_op_var (def, op);
if (operands)
operands[0] = op;
else
free_operand (op);
} else if (!strcmp (s->opcode, "<MOVEP>")) {
if (s->opc->op_type == op_value
&& s->opc->o.value->type == ev_pointer
&& s->opc->o.value->v.pointer.def) {
operand_t *op;
ex_pointer_t *ptr = &s->opc->o.value->v.pointer;
op = def_operand (ptr->def, ptr->type);
flow_add_op_var (def, op);
if (operands)
operands[0] = op;
else
free_operand (op);
} else {
if (operands)
operands[3] = s->opc;
}
} else {
if (s->opc)
flow_add_op_var (use, s->opc);
@ -822,7 +826,7 @@ flow_analyze_statement (statement_t *s, set_t *use, set_t *def, set_t *kill,
operands[0] = s->opc;
operands[1] = s->opa;
operands[2] = s->opb;
if (strcmp (s->opcode, "<MOVE>"))
if (strncmp (s->opcode, "<MOVE", 5))
operands[3] = s->opc;
}
break;