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