[gcc r13-2646] c++: two-parameter version of cxx_constant_value

[Patrick Palka <ppalka@gcc.gnu.org>]

https://gcc.gnu.org/g:fea6ae0e5d82c01680c788c77709076b9288d145

commit r13-2646-gfea6ae0e5d82c01680c788c77709076b9288d145
Author: Patrick Palka <ppalka@redhat.com>
Date:   Tue Sep 13 10:01:29 2022 -0400

    c++: two-parameter version of cxx_constant_value
    
    Since some callers need the complain parameter but not the object
    parameter, let's introduce and use an overload of cxx_constant_value
    that omits the latter.
    
    gcc/cp/ChangeLog:
    
            * cp-tree.h (cxx_constant_value): Define two-parameter version
            that omits the object parameter.
            * decl.cc (build_explicit_specifier): Omit NULL_TREE object
            argument to cxx_constant_value.
            * except.cc (build_noexcept_spec): Likewise.
            * pt.cc (expand_integer_pack): Likewise.
            (fold_targs_r): Likewise.
            * semantics.cc (finish_if_stmt_cond): Likewise.

Diff:
---
 gcc/cp/cp-tree.h    | 2 ++
 gcc/cp/decl.cc      | 2 +-
 gcc/cp/except.cc    | 2 +-
 gcc/cp/pt.cc        | 4 ++--
 gcc/cp/semantics.cc | 2 +-
 5 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h
index 2ba44e80e20..1eb176d4a50 100644
--- a/gcc/cp/cp-tree.h
+++ b/gcc/cp/cp-tree.h
@@ -8414,6 +8414,8 @@ extern bool require_rvalue_constant_expression (tree);
 extern bool require_potential_rvalue_constant_expression (tree);
 extern tree cxx_constant_value			(tree, tree = NULL_TREE,
 						 tsubst_flags_t = tf_error);
+inline tree cxx_constant_value (tree t, tsubst_flags_t complain)
+{ return cxx_constant_value (t, NULL_TREE, complain); }
 extern void cxx_constant_dtor			(tree, tree);
 extern tree cxx_constant_init			(tree, tree = NULL_TREE);
 extern tree maybe_constant_value		(tree, tree = NULL_TREE, bool = false);
diff --git a/gcc/cp/decl.cc b/gcc/cp/decl.cc
index 5404d7e084c..006e9affcba 100644
--- a/gcc/cp/decl.cc
+++ b/gcc/cp/decl.cc
@@ -18557,7 +18557,7 @@ build_explicit_specifier (tree expr, tsubst_flags_t complain)
 
   expr = build_converted_constant_bool_expr (expr, complain);
   expr = instantiate_non_dependent_expr (expr, complain);
-  expr = cxx_constant_value (expr, NULL_TREE, complain);
+  expr = cxx_constant_value (expr, complain);
   return expr;
 }
 
diff --git a/gcc/cp/except.cc b/gcc/cp/except.cc
index 4d7f0ce102d..048612de400 100644
--- a/gcc/cp/except.cc
+++ b/gcc/cp/except.cc
@@ -1257,7 +1257,7 @@ build_noexcept_spec (tree expr, tsubst_flags_t complain)
     {
       expr = build_converted_constant_bool_expr (expr, complain);
       expr = instantiate_non_dependent_expr (expr, complain);
-      expr = cxx_constant_value (expr, NULL_TREE, complain);
+      expr = cxx_constant_value (expr, complain);
     }
   if (TREE_CODE (expr) == INTEGER_CST)
     {
diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc
index 074179288b6..db4e808adec 100644
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -3869,7 +3869,7 @@ expand_integer_pack (tree call, tree args, tsubst_flags_t complain,
   else
     {
       hi = instantiate_non_dependent_expr (hi, complain);
-      hi = cxx_constant_value (hi, NULL_TREE, complain);
+      hi = cxx_constant_value (hi, complain);
       int len = valid_constant_size_p (hi) ? tree_to_shwi (hi) : -1;
 
       /* Calculate the largest value of len that won't make the size of the vec
@@ -20121,7 +20121,7 @@ fold_targs_r (tree targs, tsubst_flags_t complain)
 	       && !glvalue_p (elt)
 	       && !TREE_CONSTANT (elt))
 	{
-	  elt = cxx_constant_value (elt, NULL_TREE, complain);
+	  elt = cxx_constant_value (elt, complain);
 	  if (elt == error_mark_node)
 	    return false;
 	}
diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc
index 3edefb2fca2..4f189978484 100644
--- a/gcc/cp/semantics.cc
+++ b/gcc/cp/semantics.cc
@@ -1042,7 +1042,7 @@ finish_if_stmt_cond (tree orig_cond, tree if_stmt)
     {
       maybe_warn_for_constant_evaluated (cond, /*constexpr_if=*/true);
       cond = instantiate_non_dependent_expr (cond);
-      cond = cxx_constant_value (cond, NULL_TREE);
+      cond = cxx_constant_value (cond);
     }
   else
     {