/* Nested function decomposition for trees.
- Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with GCC; see the file COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "cgraph.h"
#include "expr.h"
#include "langhooks.h"
+#include "pointer-set.h"
#include "ggc.h"
been written as independent functions without change. */
-struct var_map_elt
-{
- tree old;
- tree new;
-};
-
struct nesting_info
{
struct nesting_info *outer;
struct nesting_info *inner;
struct nesting_info *next;
- htab_t var_map;
+ struct pointer_map_t *field_map;
+ struct pointer_map_t *var_map;
+ bitmap suppress_expansion;
+
tree context;
tree new_local_var_chain;
+ tree debug_var_chain;
tree frame_type;
tree frame_decl;
tree chain_field;
bool any_parm_remapped;
bool any_tramp_created;
+ char static_chain_added;
};
-/* Hashing and equality functions for nesting_info->var_map. */
+/* Obstack used for the bitmaps in the struct above. */
+static struct bitmap_obstack nesting_info_bitmap_obstack;
-static hashval_t
-var_map_hash (const void *x)
-{
- const struct var_map_elt *a = x;
- return htab_hash_pointer (a->old);
-}
-
-static int
-var_map_eq (const void *x, const void *y)
-{
- const struct var_map_elt *a = x;
- const struct var_map_elt *b = y;
- return a->old == b->old;
-}
/* We're working in so many different function contexts simultaneously,
that create_tmp_var is dangerous. Prevent mishap. */
DECL_CONTEXT (tmp_var) = info->context;
TREE_CHAIN (tmp_var) = info->new_local_var_chain;
DECL_SEEN_IN_BIND_EXPR_P (tmp_var) = 1;
+ if (TREE_CODE (type) == COMPLEX_TYPE
+ || TREE_CODE (type) == VECTOR_TYPE)
+ DECL_GIMPLE_REG_P (tmp_var) = 1;
+
info->new_local_var_chain = tmp_var;
return tmp_var;
save_context = current_function_decl;
current_function_decl = context;
retval = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (exp)), exp);
- current_function_decl = save_context;;
+ current_function_decl = save_context;
return retval;
}
/* Insert FIELD into TYPE, sorted by alignment requirements. */
-static void
+void
insert_field_into_struct (tree type, tree field)
{
tree *p;
info->frame_type = type;
info->frame_decl = create_tmp_var_for (info, type, "FRAME");
+
+ /* ??? Always make it addressable for now, since it is meant to
+ be pointed to by the static chain pointer. This pessimizes
+ when it turns out that no static chains are needed because
+ the nested functions referencing non-local variables are not
+ reachable, but the true pessimization is to create the non-
+ local frame structure in the first place. */
+ TREE_ADDRESSABLE (info->frame_decl) = 1;
}
return type;
}
lookup_field_for_decl (struct nesting_info *info, tree decl,
enum insert_option insert)
{
- struct var_map_elt *elt, dummy;
void **slot;
- tree field;
- dummy.old = decl;
- slot = htab_find_slot (info->var_map, &dummy, insert);
- if (!slot)
+ if (insert == NO_INSERT)
{
- gcc_assert (insert != INSERT);
- return NULL;
+ slot = pointer_map_contains (info->field_map, decl);
+ return slot ? *slot : NULL;
}
- elt = *slot;
- if (!elt && insert == INSERT)
+ slot = pointer_map_insert (info->field_map, decl);
+ if (!*slot)
{
- field = make_node (FIELD_DECL);
+ tree field = make_node (FIELD_DECL);
DECL_NAME (field) = DECL_NAME (decl);
if (use_pointer_in_frame (decl))
}
insert_field_into_struct (get_frame_type (info), field);
-
- elt = xmalloc (sizeof (*elt));
- elt->old = decl;
- elt->new = field;
- *slot = elt;
+ *slot = field;
if (TREE_CODE (decl) == PARM_DECL)
info->any_parm_remapped = true;
}
- else
- field = elt ? elt->new : NULL;
- return field;
+ return *slot;
}
/* Build or return the variable that holds the static chain within
tree t, stmt;
t = create_tmp_var_for (info, TREE_TYPE (exp), NULL);
- stmt = build (MODIFY_EXPR, TREE_TYPE (t), t, exp);
+ stmt = build_gimple_modify_stmt (t, exp);
SET_EXPR_LOCUS (stmt, EXPR_LOCUS (tsi_stmt (*tsi)));
tsi_link_before (tsi, stmt, TSI_SAME_STMT);
tree t, stmt;
t = create_tmp_var_for (info, TREE_TYPE (exp), NULL);
- stmt = build (MODIFY_EXPR, TREE_TYPE (t), exp, t);
+ stmt = build_gimple_modify_stmt (exp, t);
SET_EXPR_LOCUS (stmt, EXPR_LOCUS (tsi_stmt (*tsi)));
tsi_link_after (tsi, stmt, TSI_SAME_STMT);
static tree
get_trampoline_type (void)
{
- tree record, t;
unsigned align, size;
+ tree t;
if (trampoline_type)
return trampoline_type;
DECL_ALIGN (t) = align;
DECL_USER_ALIGN (t) = 1;
- record = make_node (RECORD_TYPE);
- TYPE_NAME (record) = get_identifier ("__builtin_trampoline");
- TYPE_FIELDS (record) = t;
- layout_type (record);
+ trampoline_type = make_node (RECORD_TYPE);
+ TYPE_NAME (trampoline_type) = get_identifier ("__builtin_trampoline");
+ TYPE_FIELDS (trampoline_type) = t;
+ layout_type (trampoline_type);
- return record;
+ return trampoline_type;
}
/* Given DECL, a nested function, find or create a field in the non-local
lookup_tramp_for_decl (struct nesting_info *info, tree decl,
enum insert_option insert)
{
- struct var_map_elt *elt, dummy;
void **slot;
- tree field;
- dummy.old = decl;
- slot = htab_find_slot (info->var_map, &dummy, insert);
- if (!slot)
+ if (insert == NO_INSERT)
{
- gcc_assert (insert != INSERT);
- return NULL;
+ slot = pointer_map_contains (info->var_map, decl);
+ return slot ? *slot : NULL;
}
- elt = *slot;
- if (!elt && insert == INSERT)
+ slot = pointer_map_insert (info->var_map, decl);
+ if (!*slot)
{
- field = make_node (FIELD_DECL);
+ tree field = make_node (FIELD_DECL);
DECL_NAME (field) = DECL_NAME (decl);
TREE_TYPE (field) = get_trampoline_type ();
TREE_ADDRESSABLE (field) = 1;
insert_field_into_struct (get_frame_type (info), field);
-
- elt = xmalloc (sizeof (*elt));
- elt->old = decl;
- elt->new = field;
- *slot = elt;
+ *slot = field;
info->any_tramp_created = true;
}
- else
- field = elt ? elt->new : NULL;
- return field;
+ return *slot;
}
/* Build or return the field within the non-local frame state that holds
return field;
}
\f
-/* Convenience routines to walk all statements of a gimple function.
-
- For each statement, we invoke CALLBACK via walk_tree. The passed
- data is a walk_stmt_info structure. Of note here is a TSI that
- points to the current statement being walked. The VAL_ONLY flag
- that indicates whether the *TP being examined may be replaced
- with something that matches is_gimple_val (if true) or something
- slightly more complicated (if false). "Something" technically
- means the common subset of is_gimple_lvalue and is_gimple_rhs,
- but we never try to form anything more complicated than that, so
- we don't bother checking. */
-
-struct walk_stmt_info
+/* Helper function for walk_stmts. Walk output operands of an ASM_EXPR. */
+
+static void
+walk_asm_expr (struct walk_stmt_info *wi, tree stmt)
{
- walk_tree_fn callback;
- tree_stmt_iterator tsi;
- struct nesting_info *info;
- bool val_only;
- bool is_lhs;
- bool changed;
-};
+ int noutputs = list_length (ASM_OUTPUTS (stmt));
+ const char **oconstraints
+ = (const char **) alloca ((noutputs) * sizeof (const char *));
+ int i;
+ tree link;
+ const char *constraint;
+ bool allows_mem, allows_reg, is_inout;
+
+ wi->is_lhs = true;
+ for (i=0, link = ASM_OUTPUTS (stmt); link; ++i, link = TREE_CHAIN (link))
+ {
+ constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (link)));
+ oconstraints[i] = constraint;
+ parse_output_constraint (&constraint, i, 0, 0, &allows_mem,
+ &allows_reg, &is_inout);
-/* A subroutine of walk_function. Iterate over all sub-statements of *TP. */
+ wi->val_only = (allows_reg || !allows_mem);
+ walk_tree (&TREE_VALUE (link), wi->callback, wi, NULL);
+ }
-static void
+ for (link = ASM_INPUTS (stmt); link; link = TREE_CHAIN (link))
+ {
+ constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (link)));
+ parse_input_constraint (&constraint, 0, 0, noutputs, 0,
+ oconstraints, &allows_mem, &allows_reg);
+
+ wi->val_only = (allows_reg || !allows_mem);
+ /* Although input "m" is not really a LHS, we need a lvalue. */
+ wi->is_lhs = !wi->val_only;
+ walk_tree (&TREE_VALUE (link), wi->callback, wi, NULL);
+ }
+
+ wi->is_lhs = false;
+ wi->val_only = true;
+}
+
+/* Iterate over all sub-statements of *TP calling walk_tree with
+ WI->CALLBACK for every sub-expression in each statement found. */
+
+void
walk_stmts (struct walk_stmt_info *wi, tree *tp)
{
tree t = *tp;
+ int walk_subtrees;
+
if (!t)
return;
+ if (wi->want_locations && EXPR_HAS_LOCATION (t))
+ input_location = EXPR_LOCATION (t);
+
switch (TREE_CODE (t))
{
case STATEMENT_LIST:
walk_stmts (wi, &TREE_OPERAND (t, 0));
walk_stmts (wi, &TREE_OPERAND (t, 1));
break;
+
case BIND_EXPR:
+ if (wi->want_bind_expr)
+ {
+ walk_subtrees = 1;
+ wi->callback (tp, &walk_subtrees, wi);
+ if (!walk_subtrees)
+ break;
+ }
walk_stmts (wi, &BIND_EXPR_BODY (t));
break;
case RETURN_EXPR:
+ if (wi->want_return_expr)
+ {
+ walk_subtrees = 1;
+ wi->callback (tp, &walk_subtrees, wi);
+ if (!walk_subtrees)
+ break;
+ }
walk_stmts (wi, &TREE_OPERAND (t, 0));
break;
- case MODIFY_EXPR:
+ case GIMPLE_MODIFY_STMT:
/* A formal temporary lhs may use a COMPONENT_REF rhs. */
- wi->val_only = !is_gimple_formal_tmp_var (TREE_OPERAND (t, 0));
- walk_tree (&TREE_OPERAND (t, 1), wi->callback, wi, NULL);
+ wi->val_only = !is_gimple_formal_tmp_var (GIMPLE_STMT_OPERAND (t, 0));
+ walk_tree (&GIMPLE_STMT_OPERAND (t, 1), wi->callback, wi, NULL);
/* If the rhs is appropriate for a memory, we may use a
COMPONENT_REF on the lhs. */
- wi->val_only = !is_gimple_mem_rhs (TREE_OPERAND (t, 1));
+ wi->val_only = !is_gimple_mem_rhs (GIMPLE_STMT_OPERAND (t, 1));
wi->is_lhs = true;
- walk_tree (&TREE_OPERAND (t, 0), wi->callback, wi, NULL);
+ walk_tree (&GIMPLE_STMT_OPERAND (t, 0), wi->callback, wi, NULL);
wi->val_only = true;
wi->is_lhs = false;
break;
+ case ASM_EXPR:
+ walk_asm_expr (wi, *tp);
+ break;
+
default:
wi->val_only = true;
walk_tree (tp, wi->callback, wi, NULL);
}
}
-/* Invoke CALLBACK on all statements of INFO->CONTEXT. */
+/* Invoke CALLBACK on all statements of *STMT_P. */
static void
+walk_body (walk_tree_fn callback, struct nesting_info *info, tree *stmt_p)
+{
+ struct walk_stmt_info wi;
+
+ memset (&wi, 0, sizeof (wi));
+ wi.callback = callback;
+ wi.info = info;
+ wi.val_only = true;
+
+ walk_stmts (&wi, stmt_p);
+}
+
+/* Invoke CALLBACK on all statements of INFO->CONTEXT. */
+
+static inline void
walk_function (walk_tree_fn callback, struct nesting_info *info)
{
+ walk_body (callback, info, &DECL_SAVED_TREE (info->context));
+}
+
+/* Invoke CALLBACK on OMP_FOR init, cond, incr and pre-body. */
+
+static void
+walk_omp_for (walk_tree_fn callback, struct nesting_info *info, tree for_stmt)
+{
struct walk_stmt_info wi;
+ tree t, list = NULL, empty;
+ walk_body (callback, info, &OMP_FOR_PRE_BODY (for_stmt));
+
+ empty = build_empty_stmt ();
+ append_to_statement_list_force (empty, &list);
memset (&wi, 0, sizeof (wi));
wi.callback = callback;
wi.info = info;
+ wi.tsi = tsi_last (list);
+
+ t = OMP_FOR_INIT (for_stmt);
+ gcc_assert (TREE_CODE (t) == GIMPLE_MODIFY_STMT);
+ SET_EXPR_LOCUS (empty, EXPR_LOCUS (t));
+ wi.val_only = false;
+ walk_tree (&GIMPLE_STMT_OPERAND (t, 0), callback, &wi, NULL);
+ wi.val_only = true;
+ wi.is_lhs = false;
+ walk_tree (&GIMPLE_STMT_OPERAND (t, 1), callback, &wi, NULL);
+
+ t = OMP_FOR_COND (for_stmt);
+ gcc_assert (COMPARISON_CLASS_P (t));
+ SET_EXPR_LOCUS (empty, EXPR_LOCUS (t));
+ wi.val_only = false;
+ walk_tree (&TREE_OPERAND (t, 0), callback, &wi, NULL);
+ wi.val_only = true;
+ wi.is_lhs = false;
+ walk_tree (&TREE_OPERAND (t, 1), callback, &wi, NULL);
+
+ t = OMP_FOR_INCR (for_stmt);
+ gcc_assert (TREE_CODE (t) == GIMPLE_MODIFY_STMT);
+ SET_EXPR_LOCUS (empty, EXPR_LOCUS (t));
+ wi.val_only = false;
+ walk_tree (&GIMPLE_STMT_OPERAND (t, 0), callback, &wi, NULL);
+ t = GIMPLE_STMT_OPERAND (t, 1);
+ gcc_assert (BINARY_CLASS_P (t));
+ wi.val_only = false;
+ walk_tree (&TREE_OPERAND (t, 0), callback, &wi, NULL);
wi.val_only = true;
+ wi.is_lhs = false;
+ walk_tree (&TREE_OPERAND (t, 1), callback, &wi, NULL);
- walk_stmts (&wi, &DECL_SAVED_TREE (info->context));
+ /* Remove empty statement added above from the end of statement list. */
+ tsi_delink (&wi.tsi);
+ append_to_statement_list (list, &OMP_FOR_PRE_BODY (for_stmt));
}
/* Similarly for ROOT and all functions nested underneath, depth first. */
static struct nesting_info *
create_nesting_tree (struct cgraph_node *cgn)
{
- struct nesting_info *info = xcalloc (1, sizeof (*info));
- info->var_map = htab_create (7, var_map_hash, var_map_eq, free);
+ struct nesting_info *info = XCNEW (struct nesting_info);
+ info->field_map = pointer_map_create ();
+ info->var_map = pointer_map_create ();
+ info->suppress_expansion = BITMAP_ALLOC (&nesting_info_bitmap_obstack);
info->context = cgn->decl;
for (cgn = cgn->nested; cgn ; cgn = cgn->next_nested)
tree field = get_chain_field (i);
x = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (x)), x);
- x = build (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
+ x = build3 (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
x = init_tmp_var (info, x, tsi);
}
}
tree field = get_chain_field (i);
x = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (x)), x);
- x = build (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
+ x = build3 (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
x = init_tmp_var (info, x, tsi);
}
x = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (x)), x);
}
- x = build (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
+ x = build3 (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
return x;
}
+/* A subroutine of convert_nonlocal_reference. Create a local variable
+ in the nested function with DECL_VALUE_EXPR set to reference the true
+ variable in the parent function. This is used both for debug info
+ and in OpenMP lowering. */
+
+static tree
+get_nonlocal_debug_decl (struct nesting_info *info, tree decl)
+{
+ tree target_context;
+ struct nesting_info *i;
+ tree x, field, new_decl;
+ void **slot;
+
+ slot = pointer_map_insert (info->var_map, decl);
+
+ if (*slot)
+ return *slot;
+
+ target_context = decl_function_context (decl);
+
+ /* A copy of the code in get_frame_field, but without the temporaries. */
+ if (info->context == target_context)
+ {
+ /* Make sure frame_decl gets created. */
+ (void) get_frame_type (info);
+ x = info->frame_decl;
+ i = info;
+ }
+ else
+ {
+ x = get_chain_decl (info);
+ for (i = info->outer; i->context != target_context; i = i->outer)
+ {
+ field = get_chain_field (i);
+ x = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (x)), x);
+ x = build3 (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
+ }
+ x = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (x)), x);
+ }
+
+ field = lookup_field_for_decl (i, decl, INSERT);
+ x = build3 (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
+ if (use_pointer_in_frame (decl))
+ x = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (x)), x);
+
+ /* ??? We should be remapping types as well, surely. */
+ new_decl = build_decl (VAR_DECL, DECL_NAME (decl), TREE_TYPE (decl));
+ DECL_CONTEXT (new_decl) = info->context;
+ DECL_SOURCE_LOCATION (new_decl) = DECL_SOURCE_LOCATION (decl);
+ DECL_ARTIFICIAL (new_decl) = DECL_ARTIFICIAL (decl);
+ DECL_IGNORED_P (new_decl) = DECL_IGNORED_P (decl);
+ TREE_THIS_VOLATILE (new_decl) = TREE_THIS_VOLATILE (decl);
+ TREE_SIDE_EFFECTS (new_decl) = TREE_SIDE_EFFECTS (decl);
+ TREE_READONLY (new_decl) = TREE_READONLY (decl);
+ TREE_ADDRESSABLE (new_decl) = TREE_ADDRESSABLE (decl);
+ DECL_SEEN_IN_BIND_EXPR_P (new_decl) = 1;
+
+ SET_DECL_VALUE_EXPR (new_decl, x);
+ DECL_HAS_VALUE_EXPR_P (new_decl) = 1;
+
+ *slot = new_decl;
+ TREE_CHAIN (new_decl) = info->debug_var_chain;
+ info->debug_var_chain = new_decl;
+
+ return new_decl;
+}
+
/* Called via walk_function+walk_tree, rewrite all references to VAR
and PARM_DECLs that belong to outer functions.
be CHAIN->FOO. For two levels it'll be CHAIN->__chain->FOO. Further
indirections apply to decls for which use_pointer_in_frame is true. */
+static bool convert_nonlocal_omp_clauses (tree *, struct walk_stmt_info *);
+
static tree
convert_nonlocal_reference (tree *tp, int *walk_subtrees, void *data)
{
- struct walk_stmt_info *wi = data;
+ struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
struct nesting_info *info = wi->info;
tree t = *tp;
+ tree save_local_var_chain;
+ bitmap save_suppress;
*walk_subtrees = 0;
switch (TREE_CODE (t))
case PARM_DECL:
if (decl_function_context (t) != info->context)
{
- tree target_context = decl_function_context (t);
- struct nesting_info *i;
tree x;
wi->changed = true;
- for (i = info->outer; i->context != target_context; i = i->outer)
- continue;
- x = lookup_field_for_decl (i, t, INSERT);
- x = get_frame_field (info, target_context, x, &wi->tsi);
- if (use_pointer_in_frame (t))
+ x = get_nonlocal_debug_decl (info, t);
+ if (!bitmap_bit_p (info->suppress_expansion, DECL_UID (t)))
{
- x = init_tmp_var (info, x, &wi->tsi);
- x = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (x)), x);
+ tree target_context = decl_function_context (t);
+ struct nesting_info *i;
+ for (i = info->outer; i->context != target_context; i = i->outer)
+ continue;
+ x = lookup_field_for_decl (i, t, INSERT);
+ x = get_frame_field (info, target_context, x, &wi->tsi);
+ if (use_pointer_in_frame (t))
+ {
+ x = init_tmp_var (info, x, &wi->tsi);
+ x = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (x)), x);
+ }
}
if (wi->val_only)
if (wi->changed)
{
+ tree save_context;
+
/* If we changed anything, then TREE_INVARIANT is be wrong,
since we're no longer directly referencing a decl. */
- recompute_tree_invarant_for_addr_expr (t);
+ 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),
walk_tree (tp, convert_nonlocal_reference, wi, NULL);
break;
+ case VIEW_CONVERT_EXPR:
+ /* Just request to look at the subtrees, leaving val_only and lhs
+ untouched. This might actually be for !val_only + lhs, in which
+ case we don't want to force a replacement by a temporary. */
+ *walk_subtrees = 1;
+ break;
+
+ case OMP_PARALLEL:
+ save_suppress = info->suppress_expansion;
+ if (convert_nonlocal_omp_clauses (&OMP_PARALLEL_CLAUSES (t), wi))
+ {
+ tree c, decl;
+ decl = get_chain_decl (info);
+ c = build_omp_clause (OMP_CLAUSE_FIRSTPRIVATE);
+ OMP_CLAUSE_DECL (c) = decl;
+ OMP_CLAUSE_CHAIN (c) = OMP_PARALLEL_CLAUSES (t);
+ OMP_PARALLEL_CLAUSES (t) = c;
+ }
+
+ save_local_var_chain = info->new_local_var_chain;
+ info->new_local_var_chain = NULL;
+
+ walk_body (convert_nonlocal_reference, info, &OMP_PARALLEL_BODY (t));
+
+ if (info->new_local_var_chain)
+ declare_vars (info->new_local_var_chain, OMP_PARALLEL_BODY (t), false);
+ info->new_local_var_chain = save_local_var_chain;
+ info->suppress_expansion = save_suppress;
+ break;
+
+ case OMP_FOR:
+ save_suppress = info->suppress_expansion;
+ convert_nonlocal_omp_clauses (&OMP_FOR_CLAUSES (t), wi);
+ walk_omp_for (convert_nonlocal_reference, info, t);
+ walk_body (convert_nonlocal_reference, info, &OMP_FOR_BODY (t));
+ info->suppress_expansion = save_suppress;
+ break;
+
+ case OMP_SECTIONS:
+ case OMP_SINGLE:
+ save_suppress = info->suppress_expansion;
+ convert_nonlocal_omp_clauses (&OMP_CLAUSES (t), wi);
+ walk_body (convert_nonlocal_reference, info, &OMP_BODY (t));
+ info->suppress_expansion = save_suppress;
+ break;
+
+ case OMP_SECTION:
+ case OMP_MASTER:
+ case OMP_ORDERED:
+ walk_body (convert_nonlocal_reference, info, &OMP_BODY (t));
+ break;
+
default:
if (!IS_TYPE_OR_DECL_P (t))
{
return NULL_TREE;
}
+static bool
+convert_nonlocal_omp_clauses (tree *pclauses, struct walk_stmt_info *wi)
+{
+ struct nesting_info *info = wi->info;
+ bool need_chain = false;
+ tree clause, decl;
+ int dummy;
+ bitmap new_suppress;
+
+ new_suppress = BITMAP_GGC_ALLOC ();
+ bitmap_copy (new_suppress, info->suppress_expansion);
+
+ for (clause = *pclauses; clause ; clause = OMP_CLAUSE_CHAIN (clause))
+ {
+ switch (OMP_CLAUSE_CODE (clause))
+ {
+ case OMP_CLAUSE_PRIVATE:
+ case OMP_CLAUSE_FIRSTPRIVATE:
+ case OMP_CLAUSE_LASTPRIVATE:
+ case OMP_CLAUSE_REDUCTION:
+ case OMP_CLAUSE_COPYPRIVATE:
+ case OMP_CLAUSE_SHARED:
+ decl = OMP_CLAUSE_DECL (clause);
+ if (decl_function_context (decl) != info->context)
+ {
+ bitmap_set_bit (new_suppress, DECL_UID (decl));
+ OMP_CLAUSE_DECL (clause) = get_nonlocal_debug_decl (info, decl);
+ need_chain = true;
+ }
+ break;
+
+ case OMP_CLAUSE_SCHEDULE:
+ if (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (clause) == NULL)
+ break;
+ /* FALLTHRU */
+ case OMP_CLAUSE_IF:
+ case OMP_CLAUSE_NUM_THREADS:
+ wi->val_only = true;
+ wi->is_lhs = false;
+ convert_nonlocal_reference (&OMP_CLAUSE_OPERAND (clause, 0), &dummy,
+ wi);
+ break;
+
+ case OMP_CLAUSE_NOWAIT:
+ case OMP_CLAUSE_ORDERED:
+ case OMP_CLAUSE_DEFAULT:
+ case OMP_CLAUSE_COPYIN:
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
+ }
+
+ info->suppress_expansion = new_suppress;
+
+ return need_chain;
+}
+
+/* A subroutine of convert_local_reference. Create a local variable
+ in the parent function with DECL_VALUE_EXPR set to reference the
+ field in FRAME. This is used both for debug info and in OpenMP
+ lowering. */
+
+static tree
+get_local_debug_decl (struct nesting_info *info, tree decl, tree field)
+{
+ tree x, new_decl;
+ void **slot;
+
+ slot = pointer_map_insert (info->var_map, decl);
+ if (*slot)
+ return *slot;
+
+ /* Make sure frame_decl gets created. */
+ (void) get_frame_type (info);
+ x = info->frame_decl;
+ x = build3 (COMPONENT_REF, TREE_TYPE (field), x, field, NULL_TREE);
+
+ new_decl = build_decl (VAR_DECL, DECL_NAME (decl), TREE_TYPE (decl));
+ DECL_CONTEXT (new_decl) = info->context;
+ DECL_SOURCE_LOCATION (new_decl) = DECL_SOURCE_LOCATION (decl);
+ DECL_ARTIFICIAL (new_decl) = DECL_ARTIFICIAL (decl);
+ DECL_IGNORED_P (new_decl) = DECL_IGNORED_P (decl);
+ TREE_THIS_VOLATILE (new_decl) = TREE_THIS_VOLATILE (decl);
+ TREE_SIDE_EFFECTS (new_decl) = TREE_SIDE_EFFECTS (decl);
+ TREE_READONLY (new_decl) = TREE_READONLY (decl);
+ TREE_ADDRESSABLE (new_decl) = TREE_ADDRESSABLE (decl);
+ DECL_SEEN_IN_BIND_EXPR_P (new_decl) = 1;
+
+ SET_DECL_VALUE_EXPR (new_decl, x);
+ DECL_HAS_VALUE_EXPR_P (new_decl) = 1;
+ *slot = new_decl;
+
+ TREE_CHAIN (new_decl) = info->debug_var_chain;
+ info->debug_var_chain = new_decl;
+
+ /* Do not emit debug info twice. */
+ DECL_IGNORED_P (decl) = 1;
+
+ return new_decl;
+}
+
/* Called via walk_function+walk_tree, rewrite all references to VAR
and PARM_DECLs that were referenced by inner nested functions.
The rewrite will be a structure reference to the local frame variable. */
+static bool convert_local_omp_clauses (tree *, struct walk_stmt_info *);
+
static tree
convert_local_reference (tree *tp, int *walk_subtrees, void *data)
{
- struct walk_stmt_info *wi = data;
+ struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
struct nesting_info *info = wi->info;
tree t = *tp, field, x;
+ bool save_val_only;
+ tree save_local_var_chain;
+ bitmap save_suppress;
+ *walk_subtrees = 0;
switch (TREE_CODE (t))
{
case VAR_DECL:
break;
wi->changed = true;
- x = get_frame_field (info, info->context, field, &wi->tsi);
+ x = get_local_debug_decl (info, t, field);
+ if (!bitmap_bit_p (info->suppress_expansion, DECL_UID (t)))
+ x = get_frame_field (info, info->context, field, &wi->tsi);
if (wi->val_only)
{
break;
case ADDR_EXPR:
- {
- bool save_val_only = wi->val_only;
+ save_val_only = wi->val_only;
+ wi->val_only = false;
+ wi->is_lhs = false;
+ wi->changed = false;
+ walk_tree (&TREE_OPERAND (t, 0), convert_local_reference, wi, NULL);
+ wi->val_only = save_val_only;
- wi->val_only = false;
- wi->is_lhs = false;
- wi->changed = false;
- walk_tree (&TREE_OPERAND (t, 0), convert_local_reference, wi, NULL);
- wi->val_only = save_val_only;
+ /* If we converted anything ... */
+ if (wi->changed)
+ {
+ tree save_context;
- /* If we converted anything ... */
- if (wi->changed)
- {
- /* Then the frame decl is now addressable. */
- TREE_ADDRESSABLE (info->frame_decl) = 1;
+ /* Then the frame decl is now addressable. */
+ TREE_ADDRESSABLE (info->frame_decl) = 1;
- recompute_tree_invarant_for_addr_expr (t);
-
- /* If we are in a context where we only accept values, then
- compute the address into a temporary. */
- if (save_val_only)
- *tp = tsi_gimplify_val (wi->info, t, &wi->tsi);
- }
- }
+ 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 = tsi_gimplify_val (wi->info, t, &wi->tsi);
+ }
break;
case REALPART_EXPR:
/* Go down this entire nest and just look at the final prefix and
anything that describes the references. Otherwise, we lose track
of whether a NOP_EXPR or VIEW_CONVERT_EXPR needs a simple value. */
+ save_val_only = wi->val_only;
wi->val_only = true;
wi->is_lhs = false;
for (; handled_component_p (t); tp = &TREE_OPERAND (t, 0), t = *tp)
}
wi->val_only = false;
walk_tree (tp, convert_local_reference, wi, NULL);
+ wi->val_only = save_val_only;
+ break;
+
+ case VIEW_CONVERT_EXPR:
+ /* Just request to look at the subtrees, leaving val_only and lhs
+ untouched. This might actually be for !val_only + lhs, in which
+ case we don't want to force a replacement by a temporary. */
+ *walk_subtrees = 1;
+ break;
+
+ case OMP_PARALLEL:
+ save_suppress = info->suppress_expansion;
+ if (convert_local_omp_clauses (&OMP_PARALLEL_CLAUSES (t), wi))
+ {
+ tree c;
+ (void) get_frame_type (info);
+ c = build_omp_clause (OMP_CLAUSE_SHARED);
+ OMP_CLAUSE_DECL (c) = info->frame_decl;
+ OMP_CLAUSE_CHAIN (c) = OMP_PARALLEL_CLAUSES (t);
+ OMP_PARALLEL_CLAUSES (t) = c;
+ }
+
+ save_local_var_chain = info->new_local_var_chain;
+ info->new_local_var_chain = NULL;
+
+ walk_body (convert_local_reference, info, &OMP_PARALLEL_BODY (t));
+
+ if (info->new_local_var_chain)
+ declare_vars (info->new_local_var_chain, OMP_PARALLEL_BODY (t), false);
+ info->new_local_var_chain = save_local_var_chain;
+ info->suppress_expansion = save_suppress;
+ break;
+
+ case OMP_FOR:
+ save_suppress = info->suppress_expansion;
+ convert_local_omp_clauses (&OMP_FOR_CLAUSES (t), wi);
+ walk_omp_for (convert_local_reference, info, t);
+ walk_body (convert_local_reference, info, &OMP_FOR_BODY (t));
+ info->suppress_expansion = save_suppress;
+ break;
+
+ case OMP_SECTIONS:
+ case OMP_SINGLE:
+ save_suppress = info->suppress_expansion;
+ convert_local_omp_clauses (&OMP_CLAUSES (t), wi);
+ walk_body (convert_local_reference, info, &OMP_BODY (t));
+ info->suppress_expansion = save_suppress;
+ break;
+
+ case OMP_SECTION:
+ case OMP_MASTER:
+ case OMP_ORDERED:
+ walk_body (convert_local_reference, info, &OMP_BODY (t));
break;
default:
return NULL_TREE;
}
+static bool
+convert_local_omp_clauses (tree *pclauses, struct walk_stmt_info *wi)
+{
+ struct nesting_info *info = wi->info;
+ bool need_frame = false;
+ tree clause, decl;
+ int dummy;
+ bitmap new_suppress;
+
+ new_suppress = BITMAP_GGC_ALLOC ();
+ bitmap_copy (new_suppress, info->suppress_expansion);
+
+ for (clause = *pclauses; clause ; clause = OMP_CLAUSE_CHAIN (clause))
+ {
+ switch (OMP_CLAUSE_CODE (clause))
+ {
+ case OMP_CLAUSE_PRIVATE:
+ case OMP_CLAUSE_FIRSTPRIVATE:
+ case OMP_CLAUSE_LASTPRIVATE:
+ case OMP_CLAUSE_REDUCTION:
+ case OMP_CLAUSE_COPYPRIVATE:
+ case OMP_CLAUSE_SHARED:
+ decl = OMP_CLAUSE_DECL (clause);
+ if (decl_function_context (decl) == info->context
+ && !use_pointer_in_frame (decl))
+ {
+ tree field = lookup_field_for_decl (info, decl, NO_INSERT);
+ if (field)
+ {
+ bitmap_set_bit (new_suppress, DECL_UID (decl));
+ OMP_CLAUSE_DECL (clause)
+ = get_local_debug_decl (info, decl, field);
+ need_frame = true;
+ }
+ }
+ break;
+
+ case OMP_CLAUSE_SCHEDULE:
+ if (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (clause) == NULL)
+ break;
+ /* FALLTHRU */
+ case OMP_CLAUSE_IF:
+ case OMP_CLAUSE_NUM_THREADS:
+ wi->val_only = true;
+ wi->is_lhs = false;
+ convert_local_reference (&OMP_CLAUSE_OPERAND (clause, 0), &dummy, wi);
+ break;
+
+ case OMP_CLAUSE_NOWAIT:
+ case OMP_CLAUSE_ORDERED:
+ case OMP_CLAUSE_DEFAULT:
+ case OMP_CLAUSE_COPYIN:
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
+ }
+
+ info->suppress_expansion = new_suppress;
+
+ return need_frame;
+}
+
/* Called via walk_function+walk_tree, rewrite all GOTO_EXPRs that
reference labels from outer functions. The rewrite will be a
call to __builtin_nonlocal_goto. */
static tree
convert_nl_goto_reference (tree *tp, int *walk_subtrees, void *data)
{
- struct walk_stmt_info *wi = data;
+ struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
struct nesting_info *info = wi->info, *i;
- tree t = *tp, label, new_label, target_context, x, arg, field;
- struct var_map_elt *elt;
+ tree t = *tp, label, new_label, target_context, x, field;
void **slot;
*walk_subtrees = 0;
control transfer. This new label will be marked LABEL_NONLOCAL; this
mark will trigger proper behavior in the cfg, as well as cause the
(hairy target-specific) non-local goto receiver code to be generated
- when we expand rtl. */
- new_label = create_artificial_label ();
- DECL_NONLOCAL (new_label) = 1;
-
- /* Enter this association into var_map so that we can insert the new
- label into the IL during a second pass. */
- elt = xmalloc (sizeof (*elt));
- elt->old = label;
- elt->new = new_label;
- slot = htab_find_slot (i->var_map, elt, INSERT);
- *slot = elt;
+ when we expand rtl. Enter this association into var_map so that we
+ can insert the new label into the IL during a second pass. */
+ slot = pointer_map_insert (i->var_map, label);
+ if (*slot == NULL)
+ {
+ new_label = create_artificial_label ();
+ DECL_NONLOCAL (new_label) = 1;
+ *slot = new_label;
+ }
+ else
+ new_label = *slot;
/* Build: __builtin_nl_goto(new_label, &chain->nl_goto_field). */
field = get_nl_goto_field (i);
x = get_frame_field (info, target_context, field, &wi->tsi);
x = build_addr (x, target_context);
x = tsi_gimplify_val (info, x, &wi->tsi);
- arg = tree_cons (NULL, x, NULL);
- x = build_addr (new_label, target_context);
- arg = tree_cons (NULL, x, arg);
- x = implicit_built_in_decls[BUILT_IN_NONLOCAL_GOTO];
- x = build_function_call_expr (x, arg);
+ x = build_call_expr (implicit_built_in_decls[BUILT_IN_NONLOCAL_GOTO], 2,
+ build_addr (new_label, target_context), x);
SET_EXPR_LOCUS (x, EXPR_LOCUS (tsi_stmt (wi->tsi)));
*tsi_stmt_ptr (wi->tsi) = x;
static tree
convert_nl_goto_receiver (tree *tp, int *walk_subtrees, void *data)
{
- struct walk_stmt_info *wi = data;
+ struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
struct nesting_info *info = wi->info;
tree t = *tp, label, new_label, x;
- struct var_map_elt *elt, dummy;
tree_stmt_iterator tmp_tsi;
+ void **slot;
*walk_subtrees = 0;
if (TREE_CODE (t) != LABEL_EXPR)
return NULL_TREE;
label = LABEL_EXPR_LABEL (t);
- dummy.old = label;
- elt = htab_find (info->var_map, &dummy);
- if (!elt)
+ slot = pointer_map_contains (info->var_map, label);
+ if (!slot)
return NULL_TREE;
- new_label = elt->new;
/* If there's any possibility that the previous statement falls through,
then we must branch around the new non-local label. */
x = build1 (GOTO_EXPR, void_type_node, label);
tsi_link_before (&wi->tsi, x, TSI_SAME_STMT);
}
+
+ new_label = (tree) *slot;
x = build1 (LABEL_EXPR, void_type_node, new_label);
tsi_link_before (&wi->tsi, x, TSI_SAME_STMT);
static tree
convert_tramp_reference (tree *tp, int *walk_subtrees, void *data)
{
- struct walk_stmt_info *wi = data;
+ struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
struct nesting_info *info = wi->info, *i;
- tree t = *tp, decl, target_context, x, arg;
+ tree t = *tp, decl, target_context, x;
*walk_subtrees = 0;
switch (TREE_CODE (t))
x = get_frame_field (info, target_context, x, &wi->tsi);
x = build_addr (x, target_context);
x = tsi_gimplify_val (info, x, &wi->tsi);
- arg = tree_cons (NULL, x, NULL);
/* Do machine-specific ugliness. Normally this will involve
computing extra alignment, but it can really be anything. */
- x = implicit_built_in_decls[BUILT_IN_ADJUST_TRAMPOLINE];
- x = build_function_call_expr (x, arg);
+ x = build_call_expr (implicit_built_in_decls[BUILT_IN_ADJUST_TRAMPOLINE],
+ 1, x);
x = init_tmp_var (info, x, &wi->tsi);
/* Cast back to the proper function type. */
case CALL_EXPR:
/* Only walk call arguments, lest we generate trampolines for
direct calls. */
- walk_tree (&TREE_OPERAND (t, 1), convert_tramp_reference, wi, NULL);
+ {
+ int nargs = call_expr_nargs (t);
+ int i;
+ for (i = 0; i < nargs; i++)
+ walk_tree (&CALL_EXPR_ARG (t, i), convert_tramp_reference, wi, NULL);
+ }
break;
default:
static tree
convert_call_expr (tree *tp, int *walk_subtrees, void *data)
{
- struct walk_stmt_info *wi = data;
+ struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
struct nesting_info *info = wi->info;
tree t = *tp, decl, target_context;
+ char save_static_chain_added;
+ int i;
*walk_subtrees = 0;
switch (TREE_CODE (t))
break;
target_context = decl_function_context (decl);
if (target_context && !DECL_NO_STATIC_CHAIN (decl))
- TREE_OPERAND (t, 2)
- = get_static_chain (info, target_context, &wi->tsi);
+ {
+ CALL_EXPR_STATIC_CHAIN (t)
+ = get_static_chain (info, target_context, &wi->tsi);
+ info->static_chain_added
+ |= (1 << (info->context != target_context));
+ }
break;
case RETURN_EXPR:
- case MODIFY_EXPR:
+ case GIMPLE_MODIFY_STMT:
case WITH_SIZE_EXPR:
/* Only return modify and with_size_expr may contain calls. */
*walk_subtrees = 1;
break;
+ case OMP_PARALLEL:
+ save_static_chain_added = info->static_chain_added;
+ info->static_chain_added = 0;
+ walk_body (convert_call_expr, info, &OMP_PARALLEL_BODY (t));
+ for (i = 0; i < 2; i++)
+ {
+ tree c, decl;
+ if ((info->static_chain_added & (1 << i)) == 0)
+ continue;
+ decl = i ? get_chain_decl (info) : info->frame_decl;
+ /* Don't add CHAIN.* or FRAME.* twice. */
+ for (c = OMP_PARALLEL_CLAUSES (t); c; c = OMP_CLAUSE_CHAIN (c))
+ if ((OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE
+ || OMP_CLAUSE_CODE (c) == OMP_CLAUSE_SHARED)
+ && OMP_CLAUSE_DECL (c) == decl)
+ break;
+ if (c == NULL)
+ {
+ c = build_omp_clause (OMP_CLAUSE_FIRSTPRIVATE);
+ OMP_CLAUSE_DECL (c) = decl;
+ OMP_CLAUSE_CHAIN (c) = OMP_PARALLEL_CLAUSES (t);
+ OMP_PARALLEL_CLAUSES (t) = c;
+ }
+ }
+ info->static_chain_added |= save_static_chain_added;
+ break;
+
+ case OMP_FOR:
+ walk_body (convert_call_expr, info, &OMP_FOR_PRE_BODY (t));
+ /* FALLTHRU */
+ case OMP_SECTIONS:
+ case OMP_SECTION:
+ case OMP_SINGLE:
+ case OMP_MASTER:
+ case OMP_ORDERED:
+ case OMP_CRITICAL:
+ walk_body (convert_call_expr, info, &OMP_BODY (t));
+ break;
+
default:
break;
}
tree stmt_list = NULL;
tree context = root->context;
struct function *sf;
- struct cgraph_node *node;
/* If we created a non-local frame type or decl, we need to lay them
out at this time. */
if (root->frame_type)
{
+ /* In some cases the frame type will trigger the -Wpadded warning.
+ This is not helpful; suppress it. */
+ int save_warn_padded = warn_padded;
+ warn_padded = 0;
layout_type (root->frame_type);
+ warn_padded = save_warn_padded;
layout_decl (root->frame_decl, 0);
}
else
x = p;
- y = build (COMPONENT_REF, TREE_TYPE (field),
- root->frame_decl, field, NULL_TREE);
- x = build (MODIFY_EXPR, TREE_TYPE (field), y, x);
+ y = build3 (COMPONENT_REF, TREE_TYPE (field),
+ root->frame_decl, field, NULL_TREE);
+ x = build_gimple_modify_stmt (y, x);
append_to_statement_list (x, &stmt_list);
}
}
from chain_decl. */
if (root->chain_field)
{
- tree x = build (COMPONENT_REF, TREE_TYPE (root->chain_field),
- root->frame_decl, root->chain_field, NULL_TREE);
- x = build (MODIFY_EXPR, TREE_TYPE (x), x, get_chain_decl (root));
+ tree x = build3 (COMPONENT_REF, TREE_TYPE (root->chain_field),
+ root->frame_decl, root->chain_field, NULL_TREE);
+ x = build_gimple_modify_stmt (x, get_chain_decl (root));
append_to_statement_list (x, &stmt_list);
}
struct nesting_info *i;
for (i = root->inner; i ; i = i->next)
{
- tree arg, x, field;
+ tree arg1, arg2, arg3, x, field;
field = lookup_tramp_for_decl (root, i->context, NO_INSERT);
if (!field)
continue;
if (DECL_NO_STATIC_CHAIN (i->context))
- x = null_pointer_node;
+ arg3 = null_pointer_node;
else
- x = build_addr (root->frame_decl, context);
- arg = tree_cons (NULL, x, NULL);
+ arg3 = build_addr (root->frame_decl, context);
- x = build_addr (i->context, context);
- arg = tree_cons (NULL, x, arg);
+ arg2 = build_addr (i->context, context);
- x = build (COMPONENT_REF, TREE_TYPE (field),
- root->frame_decl, field, NULL_TREE);
- x = build_addr (x, context);
- arg = tree_cons (NULL, x, arg);
+ x = build3 (COMPONENT_REF, TREE_TYPE (field),
+ root->frame_decl, field, NULL_TREE);
+ arg1 = build_addr (x, context);
x = implicit_built_in_decls[BUILT_IN_INIT_TRAMPOLINE];
- x = build_function_call_expr (x, arg);
-
+ x = build_call_expr (x, 3, arg1, arg2, arg3);
append_to_statement_list (x, &stmt_list);
}
}
/* Make sure all new local variables get inserted into the
proper BIND_EXPR. */
if (root->new_local_var_chain)
- declare_tmp_vars (root->new_local_var_chain,
- DECL_SAVED_TREE (root->context));
+ declare_vars (root->new_local_var_chain, DECL_SAVED_TREE (root->context),
+ false);
+ if (root->debug_var_chain)
+ declare_vars (root->debug_var_chain, DECL_SAVED_TREE (root->context),
+ true);
/* Dump the translated tree function. */
dump_function (TDI_nested, root->context);
- node = cgraph_node (root->context);
+}
+
+static void
+finalize_nesting_tree (struct nesting_info *root)
+{
+ do
+ {
+ if (root->inner)
+ finalize_nesting_tree (root->inner);
+ finalize_nesting_tree_1 (root);
+ root = root->next;
+ }
+ while (root);
+}
+
+/* Unnest the nodes and pass them to cgraph. */
+
+static void
+unnest_nesting_tree_1 (struct nesting_info *root)
+{
+ struct cgraph_node *node = cgraph_node (root->context);
/* For nested functions update the cgraph to reflect unnesting.
We also delay finalizing of these functions up to this point. */
}
static void
-finalize_nesting_tree (struct nesting_info *root)
+unnest_nesting_tree (struct nesting_info *root)
{
do
{
if (root->inner)
- finalize_nesting_tree (root->inner);
- finalize_nesting_tree_1 (root);
+ unnest_nesting_tree (root->inner);
+ unnest_nesting_tree_1 (root);
root = root->next;
}
while (root);
{
if (root->inner)
free_nesting_tree (root->inner);
- htab_delete (root->var_map);
+ pointer_map_destroy (root->var_map);
+ pointer_map_destroy (root->field_map);
next = root->next;
free (root);
root = next;
void
lower_nested_functions (tree fndecl)
{
- struct nesting_info *root;
struct cgraph_node *cgn;
+ struct nesting_info *root;
/* If there are no nested functions, there's nothing to do. */
cgn = cgraph_node (fndecl);
if (!cgn->nested)
return;
+ bitmap_obstack_initialize (&nesting_info_bitmap_obstack);
root = create_nesting_tree (cgn);
walk_all_functions (convert_nonlocal_reference, root);
walk_all_functions (convert_local_reference, root);
walk_all_functions (convert_nl_goto_receiver, root);
convert_all_function_calls (root);
finalize_nesting_tree (root);
+ unnest_nesting_tree (root);
free_nesting_tree (root);
+ bitmap_obstack_release (&nesting_info_bitmap_obstack);
}
#include "gt-tree-nested.h"