analyzer: Fix 3 C++20 warnings in analyzer

I've noticed
../../gcc/analyzer/known-function-manager.cc:86:33: warning: arithmetic between different enumeration types ‘internal_fn’ and ‘built_in_function’ is deprecated
+[-Wdeprecated-enum-enum-conversion]
../../gcc/analyzer/known-function-manager.cc:87:26: warning: arithmetic between different enumeration types ‘internal_fn’ and ‘built_in_function’ is deprecated
+[-Wdeprecated-enum-enum-conversion]
../../gcc/analyzer/known-function-manager.cc:140:33: warning: arithmetic between different enumeration types ‘internal_fn’ and ‘built_in_function’ is deprecated
+[-Wdeprecated-enum-enum-conversion]
warnings.  Fixed thusly.

2025-11-28  Jakub Jelinek  <jakub@redhat.com>

	* known-function-manager.cc (known_function_manager::add): Avoid
	arithmetics between enumerators from different enum types.
	(known_function_manager::get_internal_fn): Likewise.

diff --git a/gcc/analyzer/known-function-manager.cc b/gcc/analyzer/known-function-manager.cc
index 3b645a8c90f82a41a03fa20b79cb9250212d1cfd..fad34ad38b0f9098c532766d9708c8fa55c37564 100644 (file)
--- a/gcc/analyzer/known-function-manager.cc
+++ b/gcc/analyzer/known-function-manager.cc
@@ -83,8 +83,8 @@ known_function_manager::add (enum internal_fn ifn,
                             std::unique_ptr<known_function> kf)
 {
   gcc_assert (ifn < IFN_LAST);
-  delete m_combined_fns_arr[ifn + END_BUILTINS];
-  m_combined_fns_arr[ifn + END_BUILTINS] = kf.release ();
+  delete m_combined_fns_arr[ifn + int (END_BUILTINS)];
+  m_combined_fns_arr[ifn + int (END_BUILTINS)] = kf.release ();
 }
 
 /* Get any known_function for FNDECL for call CD.
@@ -137,7 +137,7 @@ const known_function *
 known_function_manager::get_internal_fn (enum internal_fn ifn) const
 {
   gcc_assert (ifn < IFN_LAST);
-  return m_combined_fns_arr[ifn + END_BUILTINS];
+  return m_combined_fns_arr[ifn + int (END_BUILTINS)];
 }
 
 /* Get any known_function for NAME, without type-checking.