Hi!
This struct copy_body_data's hook is always NULL since merge
of the tuples branch, before that it has been shortly used by the C++
FE during ctor/dtor cloning to chain the remapped blocks, but only
very shortly, before transform_lang_insert_block was a bool and
the call to insert_block was done through a langhook.
I'd say that for something that hasn't been used since 4.4 there is
zero chance we'll want to use it again in the near future.
Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?
2021-11-23 Jakub Jelinek <ja...@redhat.com>
gcc/
* tree-inline.h (struct copy_body_data): Remove
transform_lang_insert_block member.
* tree-inline.c (remap_block): Don't call
id->transform_lang_insert_block.
(optimize_inline_calls, copy_gimple_seq_and_replace_locals,
tree_function_versioning, maybe_inline_call_in_expr,
copy_fn): Don't initialize id.transform_lang_insert_block.
* gimplify.c (gimplify_omp_loop): Likewise.
gcc/c/
* c-typeck.c (c_clone_omp_udr): Don't initialize
id.transform_lang_insert_block.
gcc/cp/
* semantics.c (clone_omp_udr): Don't initialize
id.transform_lang_insert_block.
* optimize.c (clone_body): Likewise.
--- gcc/tree-inline.h.jj 2021-05-04 21:02:24.181799753 +0200
+++ gcc/tree-inline.h 2021-11-22 13:17:15.330592766 +0100
@@ -133,9 +133,6 @@ struct copy_body_data
and only in that case will actually remap the type. */
bool dont_remap_vla_if_no_change;
- /* A function to be called when duplicating BLOCK nodes. */
- void (*transform_lang_insert_block) (tree);
-
/* Statements that might be possibly folded. */
hash_set<gimple *> *statements_to_fold;
--- gcc/tree-inline.c.jj 2021-11-19 16:39:51.669594099 +0100
+++ gcc/tree-inline.c 2021-11-22 13:17:30.429377127 +0100
@@ -823,9 +823,6 @@ remap_block (tree *block, copy_body_data
&BLOCK_NONLOCALIZED_VARS (new_block),
id);
- if (id->transform_lang_insert_block)
- id->transform_lang_insert_block (new_block);
-
/* Remember the remapped block. */
insert_decl_map (id, old_block, new_block);
}
@@ -5473,7 +5470,6 @@ optimize_inline_calls (tree fn)
id.transform_new_cfg = false;
id.transform_return_to_modify = true;
id.transform_parameter = true;
- id.transform_lang_insert_block = NULL;
id.statements_to_fold = new hash_set<gimple *>;
push_gimplify_context ();
@@ -5857,7 +5853,6 @@ copy_gimple_seq_and_replace_locals (gimp
id.transform_new_cfg = false;
id.transform_return_to_modify = false;
id.transform_parameter = false;
- id.transform_lang_insert_block = NULL;
/* Walk the tree once to find local labels. */
memset (&wi, 0, sizeof (wi));
@@ -6252,7 +6247,6 @@ tree_function_versioning (tree old_decl,
id.transform_new_cfg = true;
id.transform_return_to_modify = false;
id.transform_parameter = false;
- id.transform_lang_insert_block = NULL;
old_entry_block = ENTRY_BLOCK_PTR_FOR_FN
(DECL_STRUCT_FUNCTION (old_decl));
@@ -6541,7 +6535,6 @@ maybe_inline_call_in_expr (tree exp)
id.transform_new_cfg = false;
id.transform_return_to_modify = true;
id.transform_parameter = true;
- id.transform_lang_insert_block = NULL;
/* Make sure not to unshare trees behind the front-end's back
since front-end specific mechanisms may rely on sharing. */
@@ -6613,7 +6606,6 @@ copy_fn (tree fn, tree& parms, tree& res
id.transform_new_cfg = false;
id.transform_return_to_modify = false;
id.transform_parameter = true;
- id.transform_lang_insert_block = NULL;
/* Make sure not to unshare trees behind the front-end's back
since front-end specific mechanisms may rely on sharing. */
--- gcc/gimplify.c.jj 2021-11-22 16:14:18.365451780 +0100
+++ gcc/gimplify.c 2021-11-22 16:54:31.726082428 +0100
@@ -13413,7 +13413,6 @@ gimplify_omp_loop (tree *expr_p, gimple_
id.transform_call_graph_edges = CB_CGE_DUPLICATE;
id.transform_new_cfg = true;
id.transform_return_to_modify = false;
- id.transform_lang_insert_block = NULL;
id.eh_lp_nr = 0;
walk_tree (&OMP_CLAUSE_REDUCTION_INIT (*pc), copy_tree_body_r,
&id, NULL);
--- gcc/c/c-typeck.c.jj 2021-11-22 10:07:01.305225923 +0100
+++ gcc/c/c-typeck.c 2021-11-22 13:18:20.678659463 +0100
@@ -13848,7 +13848,6 @@ c_clone_omp_udr (tree stmt, tree omp_dec
id.transform_call_graph_edges = CB_CGE_DUPLICATE;
id.transform_new_cfg = true;
id.transform_return_to_modify = false;
- id.transform_lang_insert_block = NULL;
id.eh_lp_nr = 0;
walk_tree (&stmt, copy_tree_body_r, &id, NULL);
return stmt;
--- gcc/cp/semantics.c.jj 2021-11-19 09:58:37.239716820 +0100
+++ gcc/cp/semantics.c 2021-11-22 13:18:40.604374884 +0100
@@ -6066,7 +6066,6 @@ clone_omp_udr (tree stmt, tree omp_decl1
id.transform_call_graph_edges = CB_CGE_DUPLICATE;
id.transform_new_cfg = true;
id.transform_return_to_modify = false;
- id.transform_lang_insert_block = NULL;
id.eh_lp_nr = 0;
walk_tree (&stmt, copy_tree_body_r, &id, NULL);
return stmt;
--- gcc/cp/optimize.c.jj 2021-03-23 10:20:42.765718056 +0100
+++ gcc/cp/optimize.c 2021-11-22 13:18:51.899213569 +0100
@@ -103,7 +103,6 @@ clone_body (tree clone, tree fn, void *a
id.transform_call_graph_edges = CB_CGE_DUPLICATE;
id.transform_new_cfg = true;
id.transform_return_to_modify = false;
- id.transform_lang_insert_block = NULL;
/* We're not inside any EH region. */
id.eh_lp_nr = 0;
Jakub
