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Split out ada_binop_in_bounds

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This splits BINOP_IN_BOUNDS into a new function for future use.

gdb/ChangeLog
2021-03-08  Tom Tromey  <tom@tromey.com>

	* ada-lang.c (ada_binop_in_bounds): New function.
	(ada_evaluate_subexp): Use it.
This commit is contained in:
Tom Tromey 2021-03-08 07:27:57 -07:00
parent 5ce19db80f
commit b467efaa91
2 changed files with 36 additions and 22 deletions
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53
gdb/ada-lang.c
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@ -10188,6 +10188,36 @@ ada_ternop_slice (struct expression *exp,
longest_to_int (high_bound));
}
/* A helper function for BINOP_IN_BOUNDS. */
static value *
ada_binop_in_bounds (struct expression *exp, enum noside noside,
struct value *arg1, struct value *arg2, int n)
{
if (noside == EVAL_AVOID_SIDE_EFFECTS)
{
struct type *type = language_bool_type (exp->language_defn,
exp->gdbarch);
return value_zero (type, not_lval);
}
struct type *type = ada_index_type (value_type (arg2), n, "range");
if (!type)
type = value_type (arg1);
value *arg3 = value_from_longest (type, ada_array_bound (arg2, n, 1));
arg2 = value_from_longest (type, ada_array_bound (arg2, n, 0));
binop_promote (exp->language_defn, exp->gdbarch, &arg1, &arg2);
binop_promote (exp->language_defn, exp->gdbarch, &arg1, &arg3);
type = language_bool_type (exp->language_defn, exp->gdbarch);
return value_from_longest (type,
(value_less (arg1, arg3)
|| value_equal (arg1, arg3))
&& (value_less (arg2, arg1)
|| value_equal (arg2, arg1)));
}
/* Implement the evaluate_exp routine in the exp_descriptor structure
for the Ada language. */
@ -10651,30 +10681,9 @@ ada_evaluate_subexp (struct type *expect_type, struct expression *exp,
if (noside == EVAL_SKIP)
goto nosideret;
if (noside == EVAL_AVOID_SIDE_EFFECTS)
{
type = language_bool_type (exp->language_defn, exp->gdbarch);
return value_zero (type, not_lval);
}
tem = longest_to_int (exp->elts[pc + 1].longconst);
type = ada_index_type (value_type (arg2), tem, "range");
if (!type)
type = value_type (arg1);
arg3 = value_from_longest (type, ada_array_bound (arg2, tem, 1));
arg2 = value_from_longest (type, ada_array_bound (arg2, tem, 0));
binop_promote (exp->language_defn, exp->gdbarch, &arg1, &arg2);
binop_promote (exp->language_defn, exp->gdbarch, &arg1, &arg3);
type = language_bool_type (exp->language_defn, exp->gdbarch);
return
value_from_longest (type,
(value_less (arg1, arg3)
|| value_equal (arg1, arg3))
&& (value_less (arg2, arg1)
|| value_equal (arg2, arg1)));
return ada_binop_in_bounds (exp, noside, arg1, arg2, tem);
case TERNOP_IN_RANGE:
arg1 = evaluate_subexp (nullptr, exp, pos, noside);