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[qfcc] Put unary expressions into the dag

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Missed optimization opportunities.
This commit is contained in:
Bill Currie 2025-01-20 09:56:44 +09:00
parent 495a1c7994
commit d10da51a1f
1 changed files with 7 additions and 5 deletions
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12
tools/qfcc/source/expr_unary.c
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@ -126,7 +126,7 @@ pointer_deref (const expr_t *e)
scoped_src_loc (e); scoped_src_loc (e);
auto new = new_unary_expr ('.', e); auto new = new_unary_expr ('.', e);
new->expr.type = get_type (e)->fldptr.type; new->expr.type = get_type (e)->fldptr.type;
return new; return edag_add_expr (fold_constants (new));
} }
static const expr_t * static const expr_t *
@ -512,16 +512,18 @@ unary_expr (int op, const expr_t *e)
*neg = *e; *neg = *e;
neg->expr.e1 = e->expr.e2; neg->expr.e1 = e->expr.e2;
neg->expr.e2 = e->expr.e1; neg->expr.e2 = e->expr.e1;
return neg; return edag_add_expr (neg);
} }
if (unary_type->process) { if (unary_type->process) {
return unary_type->process (e); e = unary_type->process (e);
e = fold_constants (e);
return edag_add_expr (e);
} }
if (is_constant (e) && !unary_type->constant) { if (is_constant (e) && !unary_type->constant) {
internal_error (e, "unexpected expression type"); internal_error (e, "unexpected expression type");
} }
if (is_constant (e) && unary_type->constant) { if (is_constant (e) && unary_type->constant) {
return unary_type->constant (e); return edag_add_expr (unary_type->constant (e));
} }
auto result_type = t; auto result_type = t;
if (unary_type->result_type) { if (unary_type->result_type) {
@ -533,5 +535,5 @@ unary_expr (int op, const expr_t *e)
} }
auto new = new_unary_expr (op, e); auto new = new_unary_expr (op, e);
new->expr.type = result_type; new->expr.type = result_type;
return new; return edag_add_expr (fold_constants (new));
} }