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c++: Remove redundant calls to type_dependent_expression_p

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This simplifies conditions that test both value_dependent_expression_p and
type_dependent_expression_p, since the former predicate now subsumes the latter.

gcc/cp/ChangeLog:

	* decl.c (compute_array_index_type_loc): Remove redundant
	type_dependent_expression_p check that is subsumed by
	value_dependent_expression_p.
	* decl2.c (is_late_template_attribute): Likewise.
	* pt.c (uses_template_parms): Likewise.
	(dependent_template_arg_p): Likewise.
This commit is contained in:
Patrick Palka 2020-03-24 23:58:23 -04:00
parent 65937db83c
commit 54f58e9416
4 changed files with 13 additions and 8 deletions
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9
gcc/cp/ChangeLog
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@ -1,3 +1,12 @@
2020-03-27 Patrick Palka <ppalka@redhat.com>
* decl.c (compute_array_index_type_loc): Remove redundant
type_dependent_expression_p check that is subsumed by
value_dependent_expression_p.
* decl2.c (is_late_template_attribute): Likewise.
* pt.c (uses_template_parms): Likewise.
(dependent_template_arg_p): Likewise.
2020-03-26 Marek Polacek <polacek@redhat.com>
DR 1710

3
gcc/cp/decl.c
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@ -10338,8 +10338,7 @@ compute_array_index_type_loc (location_t name_loc, tree name, tree size,
/* We can only call value_dependent_expression_p on integral constant
expressions; treat non-constant expressions as dependent, too. */
if (processing_template_decl
&& (type_dependent_expression_p (size)
|| !TREE_CONSTANT (size) || value_dependent_expression_p (size)))
&& (!TREE_CONSTANT (size) || value_dependent_expression_p (size)))
{
/* We cannot do any checking for a SIZE that isn't known to be
constant. Just build the index type and mark that it requires

3
gcc/cp/decl2.c
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@ -1191,8 +1191,7 @@ is_late_template_attribute (tree attr, tree decl)
&& identifier_p (t))
continue;
if (value_dependent_expression_p (t)
|| type_dependent_expression_p (t))
if (value_dependent_expression_p (t))
return true;
}

6
gcc/cp/pt.c
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@ -10525,8 +10525,7 @@ uses_template_parms (tree t)
else if (t == error_mark_node)
dependent_p = false;
else
dependent_p = (type_dependent_expression_p (t)
|| value_dependent_expression_p (t));
dependent_p = value_dependent_expression_p (t);
processing_template_decl = saved_processing_template_decl;
@ -27016,8 +27015,7 @@ dependent_template_arg_p (tree arg)
else if (TYPE_P (arg))
return dependent_type_p (arg);
else
return (type_dependent_expression_p (arg)
|| value_dependent_expression_p (arg));
return value_dependent_expression_p (arg);
}
/* Returns true if ARGS (a collection of template arguments) contains