[gcc r12-80] c++: Use STATIC_ASSERT for OVL_OP_MAX.

[gcc r12-80] c++: Use STATIC_ASSERT for OVL_OP_MAX.

[Martin Liska]

https://gcc.gnu.org/g:cbca62831cb7c1c7c20d67fcf929f156b09923bf

commit r12-80-gcbca62831cb7c1c7c20d67fcf929f156b09923bf
Author: Martin Liska <mliska@suse.cz>
Date:   Fri Mar 12 14:32:07 2021 +0100

    c++: Use STATIC_ASSERT for OVL_OP_MAX.
    
    gcc/cp/ChangeLog:
    
            * cp-tree.h (STATIC_ASSERT): Prefer static assert.
            * lex.c (init_operators): Remove run-time check.

Diff:
---
 gcc/cp/cp-tree.h | 3 +++
 gcc/cp/lex.c     | 2 --
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h
index 23a77a2b2e0..cb254e0adea 100644
--- a/gcc/cp/cp-tree.h
+++ b/gcc/cp/cp-tree.h
@@ -5922,6 +5922,9 @@ enum ovl_op_code {
   OVL_OP_MAX
 };
 
+/* Make sure it fits in lang_decl_fn::ovl_op_code. */
+STATIC_ASSERT (OVL_OP_MAX < (1 << 6));
+
 struct GTY(()) ovl_op_info_t {
   /* The IDENTIFIER_NODE for the operator.  */
   tree identifier;
diff --git a/gcc/cp/lex.c b/gcc/cp/lex.c
index 73e14b8394c..43abd019e6e 100644
--- a/gcc/cp/lex.c
+++ b/gcc/cp/lex.c
@@ -166,8 +166,6 @@ init_operators (void)
 
       if (op_ptr->name)
 	{
-	  /* Make sure it fits in lang_decl_fn::operator_code. */
-	  gcc_checking_assert (op_ptr->ovl_op_code < (1 << 6));
 	  tree ident = set_operator_ident (op_ptr);
 	  if (unsigned index = IDENTIFIER_CP_INDEX (ident))
 	    {