/* Nested function decomposition for GIMPLE.
- Copyright (C) 2004-2020 Free Software Foundation, Inc.
+ Copyright (C) 2004-2021 Free Software Foundation, Inc.
This file is part of GCC.
#include "gimple-low.h"
#include "gomp-constants.h"
#include "diagnostic.h"
+#include "alloc-pool.h"
+#include "tree-nested.h"
+#include "symbol-summary.h"
+#include "symtab-thunks.h"
+
+/* Summary of nested functions. */
+static function_summary <nested_function_info *>
+ *nested_function_sum = NULL;
+
+/* Return nested_function_info, if available. */
+nested_function_info *
+nested_function_info::get (cgraph_node *node)
+{
+ if (!nested_function_sum)
+ return NULL;
+ return nested_function_sum->get (node);
+}
+
+/* Return nested_function_info possibly creating new one. */
+nested_function_info *
+nested_function_info::get_create (cgraph_node *node)
+{
+ if (!nested_function_sum)
+ {
+ nested_function_sum = new function_summary <nested_function_info *>
+ (symtab);
+ nested_function_sum->disable_insertion_hook ();
+ }
+ return nested_function_sum->get_create (node);
+}
+
+/* cgraph_node is no longer nested function; update cgraph accordingly. */
+void
+unnest_function (cgraph_node *node)
+{
+ nested_function_info *info = nested_function_info::get (node);
+ cgraph_node **node2 = &nested_function_info::get
+ (nested_function_origin (node))->nested;
+
+ gcc_checking_assert (info->origin);
+ while (*node2 != node)
+ node2 = &nested_function_info::get (*node2)->next_nested;
+ *node2 = info->next_nested;
+ info->next_nested = NULL;
+ info->origin = NULL;
+ nested_function_sum->remove (node);
+}
+/* Destructor: unlink function from nested function lists. */
+nested_function_info::~nested_function_info ()
+{
+ cgraph_node *next;
+ for (cgraph_node *n = nested; n; n = next)
+ {
+ nested_function_info *info = nested_function_info::get (n);
+ next = info->next_nested;
+ info->origin = NULL;
+ info->next_nested = NULL;
+ }
+ nested = NULL;
+ if (origin)
+ {
+ cgraph_node **node2
+ = &nested_function_info::get (origin)->nested;
+
+ nested_function_info *info;
+ while ((info = nested_function_info::get (*node2)) != this && info)
+ node2 = &info->next_nested;
+ *node2 = next_nested;
+ }
+}
+
+/* Free nested function info summaries. */
+void
+nested_function_info::release ()
+{
+ if (nested_function_sum)
+ delete (nested_function_sum);
+ nested_function_sum = NULL;
+}
+
+/* If NODE is nested function, record it. */
+void
+maybe_record_nested_function (cgraph_node *node)
+{
+ /* All nested functions gets lowered during the construction of symtab. */
+ if (symtab->state > CONSTRUCTION)
+ return;
+ if (DECL_CONTEXT (node->decl)
+ && TREE_CODE (DECL_CONTEXT (node->decl)) == FUNCTION_DECL)
+ {
+ cgraph_node *origin = cgraph_node::get_create (DECL_CONTEXT (node->decl));
+ nested_function_info *info = nested_function_info::get_create (node);
+ nested_function_info *origin_info
+ = nested_function_info::get_create (origin);
+
+ info->origin = origin;
+ info->next_nested = origin_info->nested;
+ origin_info->nested = node;
+ }
+}
/* The object of this pass is to lower the representation of a set of nested
functions in order to expose all of the gory details of the various
DECL_USER_ALIGN (field) = DECL_USER_ALIGN (decl);
DECL_IGNORED_P (field) = DECL_IGNORED_P (decl);
DECL_NONADDRESSABLE_P (field) = !TREE_ADDRESSABLE (decl);
- TREE_NO_WARNING (field) = TREE_NO_WARNING (decl);
TREE_THIS_VOLATILE (field) = TREE_THIS_VOLATILE (decl);
+ copy_warning (field, decl);
/* Declare the transformation and adjust the original DECL. For a
variable or for a parameter when not optimizing, we make it point
*slot = build_tree_list (NULL_TREE, NULL_TREE);
return (tree) *slot;
-}
+}
/* Given DECL, a nested function, create a field in the non-local
frame structure for this function. */
struct cgraph_node *cgn = cgraph_node::get (fndecl);
tree arg;
- for (cgn = cgn->nested; cgn ; cgn = cgn->next_nested)
+ for (cgn = first_nested_function (cgn); cgn;
+ cgn = next_nested_function (cgn))
{
for (arg = DECL_ARGUMENTS (cgn->decl); arg; arg = DECL_CHAIN (arg))
if (variably_modified_type_p (TREE_TYPE (arg), orig_fndecl))
info->mem_refs = new hash_set<tree *>;
info->suppress_expansion = BITMAP_ALLOC (&nesting_info_bitmap_obstack);
info->context = cgn->decl;
- info->thunk_p = cgn->thunk.thunk_p;
+ info->thunk_p = cgn->thunk;
- for (cgn = cgn->nested; cgn ; cgn = cgn->next_nested)
+ for (cgn = first_nested_function (cgn); cgn;
+ cgn = next_nested_function (cgn))
{
struct nesting_info *sub = create_nesting_tree (cgn);
sub->outer = info;
}
x = build3 (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
+ TREE_THIS_VOLATILE (x) = TREE_THIS_VOLATILE (field);
return x;
}
save_context = current_function_decl;
current_function_decl = info->context;
recompute_tree_invariant_for_addr_expr (t);
- current_function_decl = save_context;
/* If the callback converted the address argument in a context
where we only accept variables (and min_invariant, presumably),
if (save_val_only)
*tp = gsi_gimplify_val ((struct nesting_info *) wi->info,
t, &wi->gsi);
+ current_function_decl = save_context;
}
}
break;
case OMP_CLAUSE_USE_DEVICE_PTR:
case OMP_CLAUSE_USE_DEVICE_ADDR:
case OMP_CLAUSE_IS_DEVICE_PTR:
+ case OMP_CLAUSE_DETACH:
do_decl_clause:
if (pdecl == NULL)
pdecl = &OMP_CLAUSE_DECL (clause);
case OMP_CLAUSE_GRAINSIZE:
case OMP_CLAUSE_NUM_TASKS:
case OMP_CLAUSE_HINT:
+ case OMP_CLAUSE_FILTER:
case OMP_CLAUSE_NUM_GANGS:
case OMP_CLAUSE_NUM_WORKERS:
case OMP_CLAUSE_VECTOR_LENGTH:
}
/* FALLTHRU */
case OMP_CLAUSE_NONTEMPORAL:
+ do_decl_clause_no_supp:
/* Like do_decl_clause, but don't add any suppression. */
decl = OMP_CLAUSE_DECL (clause);
if (VAR_P (decl)
}
break;
+ case OMP_CLAUSE_ALLOCATE:
+ if (OMP_CLAUSE_ALLOCATE_ALLOCATOR (clause))
+ {
+ wi->val_only = true;
+ wi->is_lhs = false;
+ convert_nonlocal_reference_op
+ (&OMP_CLAUSE_ALLOCATE_ALLOCATOR (clause), &dummy, wi);
+ }
+ goto do_decl_clause_no_supp;
+
case OMP_CLAUSE_NOWAIT:
case OMP_CLAUSE_ORDERED:
case OMP_CLAUSE_DEFAULT:
case OMP_CLAUSE_AUTO:
case OMP_CLAUSE_IF_PRESENT:
case OMP_CLAUSE_FINALIZE:
+ case OMP_CLAUSE_BIND:
case OMP_CLAUSE__CONDTEMP_:
case OMP_CLAUSE__SCANTEMP_:
break;
case OMP_CLAUSE__LOOPTEMP_:
case OMP_CLAUSE__REDUCTEMP_:
case OMP_CLAUSE__SIMDUID_:
- case OMP_CLAUSE__GRIDDIM_:
case OMP_CLAUSE__SIMT_:
+ /* The following clauses are only allowed on OpenACC 'routine'
+ directives, not seen here. */
+ case OMP_CLAUSE_NOHOST:
/* Anything else. */
default:
gcc_unreachable ();
if (OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (clause))
DECL_CONTEXT (OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (clause))
= info->context;
+ tree save_local_var_chain = info->new_local_var_chain;
+ info->new_local_var_chain = NULL;
+ gimple_seq *seq = &OMP_CLAUSE_REDUCTION_GIMPLE_INIT (clause);
walk_body (convert_nonlocal_reference_stmt,
- convert_nonlocal_reference_op, info,
- &OMP_CLAUSE_REDUCTION_GIMPLE_INIT (clause));
+ convert_nonlocal_reference_op, info, seq);
+ if (info->new_local_var_chain)
+ declare_vars (info->new_local_var_chain,
+ gimple_seq_first_stmt (*seq), false);
+ info->new_local_var_chain = NULL;
+ seq = &OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (clause);
walk_body (convert_nonlocal_reference_stmt,
- convert_nonlocal_reference_op, info,
- &OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (clause));
+ convert_nonlocal_reference_op, info, seq);
+ if (info->new_local_var_chain)
+ declare_vars (info->new_local_var_chain,
+ gimple_seq_first_stmt (*seq), false);
+ info->new_local_var_chain = save_local_var_chain;
DECL_CONTEXT (OMP_CLAUSE_REDUCTION_PLACEHOLDER (clause))
= old_context;
if (OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (clause))
break;
case OMP_CLAUSE_LASTPRIVATE:
- walk_body (convert_nonlocal_reference_stmt,
- convert_nonlocal_reference_op, info,
- &OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (clause));
+ {
+ tree save_local_var_chain = info->new_local_var_chain;
+ info->new_local_var_chain = NULL;
+ gimple_seq *seq = &OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (clause);
+ walk_body (convert_nonlocal_reference_stmt,
+ convert_nonlocal_reference_op, info, seq);
+ if (info->new_local_var_chain)
+ declare_vars (info->new_local_var_chain,
+ gimple_seq_first_stmt (*seq), false);
+ info->new_local_var_chain = save_local_var_chain;
+ }
break;
case OMP_CLAUSE_LINEAR:
- walk_body (convert_nonlocal_reference_stmt,
- convert_nonlocal_reference_op, info,
- &OMP_CLAUSE_LINEAR_GIMPLE_SEQ (clause));
+ {
+ tree save_local_var_chain = info->new_local_var_chain;
+ info->new_local_var_chain = NULL;
+ gimple_seq *seq = &OMP_CLAUSE_LINEAR_GIMPLE_SEQ (clause);
+ walk_body (convert_nonlocal_reference_stmt,
+ convert_nonlocal_reference_op, info, seq);
+ if (info->new_local_var_chain)
+ declare_vars (info->new_local_var_chain,
+ gimple_seq_first_stmt (*seq), false);
+ info->new_local_var_chain = save_local_var_chain;
+ }
break;
default:
info->suppress_expansion = save_suppress;
break;
+ case GIMPLE_OMP_SCOPE:
+ save_suppress = info->suppress_expansion;
+ convert_nonlocal_omp_clauses (gimple_omp_scope_clauses_ptr (stmt), wi);
+ walk_body (convert_nonlocal_reference_stmt, convert_nonlocal_reference_op,
+ info, gimple_omp_body_ptr (stmt));
+ info->suppress_expansion = save_suppress;
+ break;
+
case GIMPLE_OMP_TASKGROUP:
save_suppress = info->suppress_expansion;
convert_nonlocal_omp_clauses (gimple_omp_taskgroup_clauses_ptr (stmt), wi);
case GIMPLE_OMP_SECTION:
case GIMPLE_OMP_MASTER:
+ case GIMPLE_OMP_MASKED:
case GIMPLE_OMP_ORDERED:
case GIMPLE_OMP_SCAN:
walk_body (convert_nonlocal_reference_stmt, convert_nonlocal_reference_op,
save_context = current_function_decl;
current_function_decl = info->context;
recompute_tree_invariant_for_addr_expr (t);
- current_function_decl = save_context;
/* If we are in a context where we only accept values, then
compute the address into a temporary. */
if (save_val_only)
*tp = gsi_gimplify_val ((struct nesting_info *) wi->info,
t, &wi->gsi);
+ current_function_decl = save_context;
}
break;
case OMP_CLAUSE_USE_DEVICE_PTR:
case OMP_CLAUSE_USE_DEVICE_ADDR:
case OMP_CLAUSE_IS_DEVICE_PTR:
+ case OMP_CLAUSE_DETACH:
do_decl_clause:
if (pdecl == NULL)
pdecl = &OMP_CLAUSE_DECL (clause);
case OMP_CLAUSE_GRAINSIZE:
case OMP_CLAUSE_NUM_TASKS:
case OMP_CLAUSE_HINT:
+ case OMP_CLAUSE_FILTER:
case OMP_CLAUSE_NUM_GANGS:
case OMP_CLAUSE_NUM_WORKERS:
case OMP_CLAUSE_VECTOR_LENGTH:
}
/* FALLTHRU */
case OMP_CLAUSE_NONTEMPORAL:
+ do_decl_clause_no_supp:
/* Like do_decl_clause, but don't add any suppression. */
decl = OMP_CLAUSE_DECL (clause);
if (VAR_P (decl)
}
break;
+ case OMP_CLAUSE_ALLOCATE:
+ if (OMP_CLAUSE_ALLOCATE_ALLOCATOR (clause))
+ {
+ wi->val_only = true;
+ wi->is_lhs = false;
+ convert_local_reference_op
+ (&OMP_CLAUSE_ALLOCATE_ALLOCATOR (clause), &dummy, wi);
+ }
+ goto do_decl_clause_no_supp;
+
case OMP_CLAUSE_NOWAIT:
case OMP_CLAUSE_ORDERED:
case OMP_CLAUSE_DEFAULT:
case OMP_CLAUSE_AUTO:
case OMP_CLAUSE_IF_PRESENT:
case OMP_CLAUSE_FINALIZE:
+ case OMP_CLAUSE_BIND:
case OMP_CLAUSE__CONDTEMP_:
case OMP_CLAUSE__SCANTEMP_:
break;
case OMP_CLAUSE__LOOPTEMP_:
case OMP_CLAUSE__REDUCTEMP_:
case OMP_CLAUSE__SIMDUID_:
- case OMP_CLAUSE__GRIDDIM_:
case OMP_CLAUSE__SIMT_:
+ /* The following clauses are only allowed on OpenACC 'routine'
+ directives, not seen here. */
+ case OMP_CLAUSE_NOHOST:
/* Anything else. */
default:
gcc_unreachable ();
info->suppress_expansion = save_suppress;
break;
+ case GIMPLE_OMP_SCOPE:
+ save_suppress = info->suppress_expansion;
+ convert_local_omp_clauses (gimple_omp_scope_clauses_ptr (stmt), wi);
+ walk_body (convert_local_reference_stmt, convert_local_reference_op,
+ info, gimple_omp_body_ptr (stmt));
+ info->suppress_expansion = save_suppress;
+ break;
+
case GIMPLE_OMP_TASKGROUP:
save_suppress = info->suppress_expansion;
convert_local_omp_clauses (gimple_omp_taskgroup_clauses_ptr (stmt), wi);
case GIMPLE_OMP_SECTION:
case GIMPLE_OMP_MASTER:
+ case GIMPLE_OMP_MASKED:
case GIMPLE_OMP_ORDERED:
case GIMPLE_OMP_SCAN:
walk_body (convert_local_reference_stmt, convert_local_reference_op,
{
tree lhs = gimple_assign_lhs (stmt);
if (DECL_P (lhs)
+ && decl_function_context (lhs) == info->context
&& !use_pointer_in_frame (lhs)
&& lookup_field_for_decl (info, lhs, NO_INSERT))
{
case GIMPLE_OMP_SECTIONS:
case GIMPLE_OMP_SECTION:
case GIMPLE_OMP_SINGLE:
+ case GIMPLE_OMP_SCOPE:
case GIMPLE_OMP_MASTER:
+ case GIMPLE_OMP_MASKED:
case GIMPLE_OMP_TASKGROUP:
case GIMPLE_OMP_ORDERED:
case GIMPLE_OMP_SCAN:
if (n->thunk_p)
{
tree decl = n->context;
- tree alias = cgraph_node::get (decl)->thunk.alias;
+ tree alias = thunk_info::get (cgraph_node::get (decl))->alias;
DECL_STATIC_CHAIN (decl) = DECL_STATIC_CHAIN (alias);
}
if (n->thunk_p)
{
tree decl = n->context;
- tree alias = cgraph_node::get (decl)->thunk.alias;
+ tree alias = thunk_info::get (cgraph_node::get (decl))->alias;
DECL_STATIC_CHAIN (decl) = DECL_STATIC_CHAIN (alias);
}
}
/* For nested functions update the cgraph to reflect unnesting.
We also delay finalizing of these functions up to this point. */
- if (node->origin)
+ if (nested_function_info::get (node)->origin)
{
- node->unnest ();
+ unnest_function (node);
if (!root->thunk_p)
cgraph_node::finalize_function (root->context, true);
}
struct cgraph_node *iter;
if (!gimple_body (root->decl))
gimplify_function_tree (root->decl);
- for (iter = root->nested; iter; iter = iter->next_nested)
- if (!iter->thunk.thunk_p)
+ for (iter = first_nested_function (root); iter;
+ iter = next_nested_function (iter))
+ if (!iter->thunk)
gimplify_all_functions (iter);
}
/* If there are no nested functions, there's nothing to do. */
cgn = cgraph_node::get (fndecl);
- if (!cgn->nested)
+ if (!first_nested_function (cgn))
return;
gimplify_all_functions (cgn);
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