Remove target builtin cleanup as it no longer seems necessary

Author: antoyo

gcc/config/i386/i386-builtins.cc

@@ -227,22 +227,6 @@ static GTY(()) tree ix86_builtins[(int) IX86_BUILTIN_MAX + 1];
 
 struct builtin_isa ix86_builtins_isa[(int) IX86_BUILTIN_MAX];
 
-void
-ix86_cleanup_builtins (void)
-{
-  for (int i = 0 ; i < IX86_BT_LAST_CPTR + 1 ; i++)
-    ix86_builtin_type_tab[i] = NULL;
-
-  for (int i = 0 ; i < IX86_BUILTIN_MAX ; i++)
-  {
-    ix86_builtins[i] = NULL;
-    ix86_builtins_isa[i].set_and_not_built_p = true;
-  }
-
-  for (int i = 0 ; i < IX86_BT_LAST_ALIAS + 1 ; i++)
-    ix86_builtin_func_type_tab[i] = NULL;
-}
-
 tree get_ix86_builtin (enum ix86_builtins c)
 {
   return ix86_builtins[c];

gcc/config/i386/i386-builtins.h

@@ -318,7 +318,6 @@ extern builtin_isa ix86_builtins_isa[(int) IX86_BUILTIN_MAX];
 tree ix86_builtin_vectorized_function (unsigned int fn, tree type_out,
 					      tree type_in);
 void ix86_init_builtins (void);
-void ix86_cleanup_builtins (void);
 tree ix86_vectorize_builtin_gather (const_tree mem_vectype,
 					   const_tree index_type, int scale);
 tree ix86_builtin_decl (unsigned code, bool);

gcc/config/i386/i386.cc

@@ -26538,8 +26538,6 @@ static const scoped_attribute_specs *const ix86_attribute_table[] =
 
 #undef TARGET_INIT_BUILTINS
 #define TARGET_INIT_BUILTINS ix86_init_builtins
-#undef TARGET_CLEANUP_BUILTINS
-#define TARGET_CLEANUP_BUILTINS ix86_cleanup_builtins
 #undef TARGET_BUILTIN_DECL
 #define TARGET_BUILTIN_DECL ix86_builtin_decl
 #undef TARGET_EXPAND_BUILTIN

gcc/doc/tm.texi

@@ -12112,13 +12112,6 @@ only language front ends that use those two functions will call
 @samp{TARGET_INIT_BUILTINS}.
 @end deftypefn
 
-@deftypefn {Target Hook} void TARGET_CLEANUP_BUILTINS (void)
-Define this hook if you have any machine-specific built-in functions
-that need to be cleaned up.  It should be a function that performs the
-necessary cleanup so that a second compilation in the same process via
-the jit frontend will not fail.
-@end deftypefn
-
 @deftypefn {Target Hook} tree TARGET_BUILTIN_DECL (unsigned @var{code}, bool @var{initialize_p})
 Define this hook if you have any machine-specific built-in functions
 that need to be defined.  It should be a function that returns the

gcc/doc/tm.texi.in

@@ -7868,8 +7868,6 @@ to by @var{ce_info}.
 
 @hook TARGET_INIT_BUILTINS
 
-@hook TARGET_CLEANUP_BUILTINS
-
 @hook TARGET_BUILTIN_DECL
 
 @hook TARGET_EXPAND_BUILTIN

gcc/jit/dummy-frontend.cc

@@ -1088,12 +1088,6 @@ jit_langhook_init (void)
   return true;
 }
 
-void
-jit_langhook_finish (void)
-{
-  targetm.cleanup_builtins ();
-}
-
 static void
 jit_langhook_parse_file (void)
 {
@@ -1461,9 +1455,6 @@ jit_langhook_eh_personality (void)
 #undef LANG_HOOKS_INIT
 #define LANG_HOOKS_INIT		jit_langhook_init
 
-#undef LANG_HOOKS_FINISH
-#define LANG_HOOKS_FINISH		jit_langhook_finish
-
 #undef LANG_HOOKS_PARSE_FILE
 #define LANG_HOOKS_PARSE_FILE		jit_langhook_parse_file
 

gcc/target.def

@@ -2450,16 +2450,6 @@ only language front ends that use those two functions will call\n\
  void, (void),
  hook_void_void)
 
-/* Clean up target-specific built-in functions.  */
-DEFHOOK
-(cleanup_builtins,
- "Define this hook if you have any machine-specific built-in functions\n\
-that need to be cleaned up.  It should be a function that performs the\n\
-necessary cleanup so that a second compilation in the same process via\n\
-the jit frontend will not fail.",
- void, (void),
- hook_void_void)
-
 /* Initialize (if INITIALIZE_P is true) and return the target-specific
    built-in function decl for CODE.
    Return NULL if that is not possible.  Return error_mark_node if CODE