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authorAndrew MacLeod <amacleod@redhat.com>2013-10-01 15:46:53 +0000
committerAndrew Macleod <amacleod@gcc.gnu.org>2013-10-01 15:46:53 +0000
commit80560f9521f81ae2c50b52b091b4caaf7d3d4397 (patch)
treeeaa52ec7e3d23ca35b23922da83d4e62a0837824 /gcc/tree-flow-inline.h
parent70b50ed7b5730785d6a16d6f7faae180e58af06b (diff)
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tree-into-ssa.c (enum need_phi_state): Relocate from tree-flow.h.
* tree-into-ssa.c (enum need_phi_state): Relocate from tree-flow.h. (dump_decl_set): Move to gimple.c. * gimple.h: Don't include tree-ssa-operands.h. (dump_decl_set): Add prototype. (gimple_vuse_op, gimple_vdef_op, update_stmt, update_stmt_if_modified): Move to gimple-ssa.h. (phi_ssa_name_p, phi_nodes, phi_nodes_ptr, gimple_phi_arg_def, gimple_phi_arg_def_ptr, gimple_phi_arg_edge, gimple_phi_arg_location, gimple_phi_arg_location_from_edge, gimple_phi_arg_set_location, gimple_phi_arg_has_location): Relocate from tree-flow-inline.h * gimple.c (walk_stmt_load_store_ops): Use gimple_phi_arg_def rather than PHI_ARG_DEF. (dump_decl_set): Relocate here. * gimple-ssa.h: New file. (gimple_vuse_op, gimple_vdef_op, update_stmt, update_stmt_if_modified): Relocate from gimple.h. * tree-cfg.c (has_zero_uses_1, single_imm_use_1): Move to... * tree-ssa-operands.c (swap_ssa_operands): Rename from swap_tree_operands and remove non-ssa path. (has_zero_uses_1, single_imm_use_1): Relocate from tree-cfg.c. * tree-ssa-reassoc.c (linearize_expr_tree, repropagate_negates): Use swap_ssa_operands. * tree-vect-loop.c (destroy_loop_vec_info, vect_is_slp_reduction, vect_is_simple_reduction_1): Use swap_ssa_operands. * tree-flow.h: Move various prototypes to tree-phinodes.h. (enum need_phi_state): Move to tree-into-ssa.c. (struct immediate_use_iterator_d, FOR_EACH_IMM_*, BREAK_FROM_IMM_USE_STMT): Move to ssa-iterators.h. (swap_tree_operands): Rename and move prototype to tree-ssa-operands.h. * tree-flow-inline.h (delink_imm_use, link_imm_use_to_list, link_imm_use, set_ssa_use_from_ptr, link_imm_use_stmt, relink_imm_use, relink_imm_use_stmt, end_readonly_imm_use_p, first_readonly_imm_use, next_readonly_imm_use, has_zero_uses, has_single_use, single_imm_use, num_imm_uses): Move to ssa-iterators.h. (get_use_from_ptr, get_def_from_ptr): Move to tree-ssa-operands.h (gimple_phi_arg_imm_use_ptr, phi_arg_index_from_use): Move to tree-phinodes.h. (op_iter_done, op_iter_next_def, op_iter_next_tree, clear_and_done_ssa_iter, op_iter_init, op_iter_init_use, op_iter_init_def, op_iter_init_tree, single_ssa_tree_operand, single_ssa_use_operand, single_ssa_def_operand, zero_ssa_operands, num_ssa_operands, delink_stmt_imm_use, single_phi_def, op_iter_init_phiuse, op_iter_init_phidef, end_imm_use_stmt_p, end_imm_use_stmt_traverse, move_use_after_head, link_use_stmts_after, first_imm_use_stmt, next_imm_use_stmt, first_imm_use_on_stmt, end_imm_use_on_stmt_p, next_imm_use_on_stmt): Move to ssa-iterators.h. (gimple_phi_arg_def, gimple_phi_arg_def_ptr, gimple_phi_arg_edge, gimple_phi_arg_location, gimple_phi_arg_location_from_edge, gimple_phi_arg_set_location, gimple_phi_arg_has_location, phi_nodes, phi_nodes_ptr, phi_ssa_name_p): Move to gimple.h. (set_phi_nodes): Move to tree-phinodes.h. * tree-ssa-operands.h (enum ssa_op_iter_type, struct ssa_operand_iterator_d, SSA_OP*, FOR_EACH_SSA*, SINGLE_SSA*, ZERO_SSA_OPERANDS, NUM_SSA_OPERANDS): Move to ssa-iterators.h. (dump_decl_set): Remove prototype. (get_use_from_ptr, get_def_from_ptr): Relocate from tree-flow.h. * tree-phinodes.h: New file. Move some prototypes from tree-flow.h. (set_phi_nodes): Relocate from tree-flow-inline.h. (gimple_phi_arg_imm_use_ptr, phi_arg_index_from_use): Relocate from tree-flow-inline.h * tree-ssa.h: Add tree-phinodes.h, gimple-ssa.h, ssa-iterators.h to include list. Temporarily add gimple.h to include list. * ssa-iterators.h: New file. (struct immediate_use_iterator_d, FOR_EACH_IMM_*, BREAK_FROM_IMM_USE_STMT): Relocate from tree-flow.h. (enum ssa_op_iter_type, struct ssa_operand_iterator_d, SSA_OP*, FOR_EACH_SSA*, SINGLE_SSA*, ZERO_SSA_OPERANDS, NUM_SSA_OPERANDS): Relocate from tree-ssa-operands.h. (delink_imm_use, link_imm_use_to_list, link_imm_use, set_ssa_use_from_ptr, link_imm_use_stmt, relink_imm_use, relink_imm_use_stmt, end_readonly_imm_use_p, first_readonly_imm_use, next_readonly_imm_use, has_zero_uses, has_single_use, single_imm_use, num_imm_uses, get_use_from_ptr, get_def_from_ptr, phi_arg_index_from_use, op_iter_done, op_iter_next_def, op_iter_next_tree, clear_and_done_ssa_iter, op_iter_init, op_iter_init_use, op_iter_init_def, op_iter_init_tree, single_ssa_tree_operand, single_ssa_use_operand, single_ssa_def_operand, zero_ssa_operands, num_ssa_operands, delink_stmt_imm_use, single_phi_def, op_iter_init_phiuse, op_iter_init_phidef, end_imm_use_stmt_p, end_imm_use_stmt_traverse, move_use_after_head, link_use_stmts_after, first_imm_use_stmt, next_imm_use_stmt, first_imm_use_on_stmt, end_imm_use_on_stmt_p, next_imm_use_on_stmt): Relocate from tree-flow-inline.h. * tree-outof-ssa.h: Change _SSAEXPAND_H macro to GCC_TREE_OUTOF_SSA_H. From-SVN: r203068
Diffstat (limited to 'gcc/tree-flow-inline.h')
-rw-r--r--gcc/tree-flow-inline.h918
1 files changed, 0 insertions, 918 deletions
diff --git a/gcc/tree-flow-inline.h b/gcc/tree-flow-inline.h
index 03c4840..b3a6d4b 100644
--- a/gcc/tree-flow-inline.h
+++ b/gcc/tree-flow-inline.h
@@ -126,380 +126,6 @@ get_lineno (const_gimple stmt)
return LOCATION_LINE (loc);
}
-/* Delink an immediate_uses node from its chain. */
-static inline void
-delink_imm_use (ssa_use_operand_t *linknode)
-{
- /* Return if this node is not in a list. */
- if (linknode->prev == NULL)
- return;
-
- linknode->prev->next = linknode->next;
- linknode->next->prev = linknode->prev;
- linknode->prev = NULL;
- linknode->next = NULL;
-}
-
-/* Link ssa_imm_use node LINKNODE into the chain for LIST. */
-static inline void
-link_imm_use_to_list (ssa_use_operand_t *linknode, ssa_use_operand_t *list)
-{
- /* Link the new node at the head of the list. If we are in the process of
- traversing the list, we won't visit any new nodes added to it. */
- linknode->prev = list;
- linknode->next = list->next;
- list->next->prev = linknode;
- list->next = linknode;
-}
-
-/* Link ssa_imm_use node LINKNODE into the chain for DEF. */
-static inline void
-link_imm_use (ssa_use_operand_t *linknode, tree def)
-{
- ssa_use_operand_t *root;
-
- if (!def || TREE_CODE (def) != SSA_NAME)
- linknode->prev = NULL;
- else
- {
- root = &(SSA_NAME_IMM_USE_NODE (def));
- if (linknode->use)
- gcc_checking_assert (*(linknode->use) == def);
- link_imm_use_to_list (linknode, root);
- }
-}
-
-/* Set the value of a use pointed to by USE to VAL. */
-static inline void
-set_ssa_use_from_ptr (use_operand_p use, tree val)
-{
- delink_imm_use (use);
- *(use->use) = val;
- link_imm_use (use, val);
-}
-
-/* Link ssa_imm_use node LINKNODE into the chain for DEF, with use occurring
- in STMT. */
-static inline void
-link_imm_use_stmt (ssa_use_operand_t *linknode, tree def, gimple stmt)
-{
- if (stmt)
- link_imm_use (linknode, def);
- else
- link_imm_use (linknode, NULL);
- linknode->loc.stmt = stmt;
-}
-
-/* Relink a new node in place of an old node in the list. */
-static inline void
-relink_imm_use (ssa_use_operand_t *node, ssa_use_operand_t *old)
-{
- /* The node one had better be in the same list. */
- gcc_checking_assert (*(old->use) == *(node->use));
- node->prev = old->prev;
- node->next = old->next;
- if (old->prev)
- {
- old->prev->next = node;
- old->next->prev = node;
- /* Remove the old node from the list. */
- old->prev = NULL;
- }
-}
-
-/* Relink ssa_imm_use node LINKNODE into the chain for OLD, with use occurring
- in STMT. */
-static inline void
-relink_imm_use_stmt (ssa_use_operand_t *linknode, ssa_use_operand_t *old,
- gimple stmt)
-{
- if (stmt)
- relink_imm_use (linknode, old);
- else
- link_imm_use (linknode, NULL);
- linknode->loc.stmt = stmt;
-}
-
-
-/* Return true is IMM has reached the end of the immediate use list. */
-static inline bool
-end_readonly_imm_use_p (const imm_use_iterator *imm)
-{
- return (imm->imm_use == imm->end_p);
-}
-
-/* Initialize iterator IMM to process the list for VAR. */
-static inline use_operand_p
-first_readonly_imm_use (imm_use_iterator *imm, tree var)
-{
- imm->end_p = &(SSA_NAME_IMM_USE_NODE (var));
- imm->imm_use = imm->end_p->next;
-#ifdef ENABLE_CHECKING
- imm->iter_node.next = imm->imm_use->next;
-#endif
- if (end_readonly_imm_use_p (imm))
- return NULL_USE_OPERAND_P;
- return imm->imm_use;
-}
-
-/* Bump IMM to the next use in the list. */
-static inline use_operand_p
-next_readonly_imm_use (imm_use_iterator *imm)
-{
- use_operand_p old = imm->imm_use;
-
-#ifdef ENABLE_CHECKING
- /* If this assertion fails, it indicates the 'next' pointer has changed
- since the last bump. This indicates that the list is being modified
- via stmt changes, or SET_USE, or somesuch thing, and you need to be
- using the SAFE version of the iterator. */
- gcc_assert (imm->iter_node.next == old->next);
- imm->iter_node.next = old->next->next;
-#endif
-
- imm->imm_use = old->next;
- if (end_readonly_imm_use_p (imm))
- return NULL_USE_OPERAND_P;
- return imm->imm_use;
-}
-
-/* tree-cfg.c */
-extern bool has_zero_uses_1 (const ssa_use_operand_t *head);
-extern bool single_imm_use_1 (const ssa_use_operand_t *head,
- use_operand_p *use_p, gimple *stmt);
-
-/* Return true if VAR has no nondebug uses. */
-static inline bool
-has_zero_uses (const_tree var)
-{
- const ssa_use_operand_t *const ptr = &(SSA_NAME_IMM_USE_NODE (var));
-
- /* A single use_operand means there is no items in the list. */
- if (ptr == ptr->next)
- return true;
-
- /* If there are debug stmts, we have to look at each use and see
- whether there are any nondebug uses. */
- if (!MAY_HAVE_DEBUG_STMTS)
- return false;
-
- return has_zero_uses_1 (ptr);
-}
-
-/* Return true if VAR has a single nondebug use. */
-static inline bool
-has_single_use (const_tree var)
-{
- const ssa_use_operand_t *const ptr = &(SSA_NAME_IMM_USE_NODE (var));
-
- /* If there aren't any uses whatsoever, we're done. */
- if (ptr == ptr->next)
- return false;
-
- /* If there's a single use, check that it's not a debug stmt. */
- if (ptr == ptr->next->next)
- return !is_gimple_debug (USE_STMT (ptr->next));
-
- /* If there are debug stmts, we have to look at each of them. */
- if (!MAY_HAVE_DEBUG_STMTS)
- return false;
-
- return single_imm_use_1 (ptr, NULL, NULL);
-}
-
-
-/* If VAR has only a single immediate nondebug use, return true, and
- set USE_P and STMT to the use pointer and stmt of occurrence. */
-static inline bool
-single_imm_use (const_tree var, use_operand_p *use_p, gimple *stmt)
-{
- const ssa_use_operand_t *const ptr = &(SSA_NAME_IMM_USE_NODE (var));
-
- /* If there aren't any uses whatsoever, we're done. */
- if (ptr == ptr->next)
- {
- return_false:
- *use_p = NULL_USE_OPERAND_P;
- *stmt = NULL;
- return false;
- }
-
- /* If there's a single use, check that it's not a debug stmt. */
- if (ptr == ptr->next->next)
- {
- if (!is_gimple_debug (USE_STMT (ptr->next)))
- {
- *use_p = ptr->next;
- *stmt = ptr->next->loc.stmt;
- return true;
- }
- else
- goto return_false;
- }
-
- /* If there are debug stmts, we have to look at each of them. */
- if (!MAY_HAVE_DEBUG_STMTS)
- goto return_false;
-
- return single_imm_use_1 (ptr, use_p, stmt);
-}
-
-/* Return the number of nondebug immediate uses of VAR. */
-static inline unsigned int
-num_imm_uses (const_tree var)
-{
- const ssa_use_operand_t *const start = &(SSA_NAME_IMM_USE_NODE (var));
- const ssa_use_operand_t *ptr;
- unsigned int num = 0;
-
- if (!MAY_HAVE_DEBUG_STMTS)
- for (ptr = start->next; ptr != start; ptr = ptr->next)
- num++;
- else
- for (ptr = start->next; ptr != start; ptr = ptr->next)
- if (!is_gimple_debug (USE_STMT (ptr)))
- num++;
-
- return num;
-}
-
-/* Return the tree pointed-to by USE. */
-static inline tree
-get_use_from_ptr (use_operand_p use)
-{
- return *(use->use);
-}
-
-/* Return the tree pointed-to by DEF. */
-static inline tree
-get_def_from_ptr (def_operand_p def)
-{
- return *def;
-}
-
-/* Return a use_operand_p pointer for argument I of PHI node GS. */
-
-static inline use_operand_p
-gimple_phi_arg_imm_use_ptr (gimple gs, int i)
-{
- return &gimple_phi_arg (gs, i)->imm_use;
-}
-
-/* Return the tree operand for argument I of PHI node GS. */
-
-static inline tree
-gimple_phi_arg_def (gimple gs, size_t index)
-{
- struct phi_arg_d *pd = gimple_phi_arg (gs, index);
- return get_use_from_ptr (&pd->imm_use);
-}
-
-/* Return a pointer to the tree operand for argument I of PHI node GS. */
-
-static inline tree *
-gimple_phi_arg_def_ptr (gimple gs, size_t index)
-{
- return &gimple_phi_arg (gs, index)->def;
-}
-
-/* Return the edge associated with argument I of phi node GS. */
-
-static inline edge
-gimple_phi_arg_edge (gimple gs, size_t i)
-{
- return EDGE_PRED (gimple_bb (gs), i);
-}
-
-/* Return the source location of gimple argument I of phi node GS. */
-
-static inline source_location
-gimple_phi_arg_location (gimple gs, size_t i)
-{
- return gimple_phi_arg (gs, i)->locus;
-}
-
-/* Return the source location of the argument on edge E of phi node GS. */
-
-static inline source_location
-gimple_phi_arg_location_from_edge (gimple gs, edge e)
-{
- return gimple_phi_arg (gs, e->dest_idx)->locus;
-}
-
-/* Set the source location of gimple argument I of phi node GS to LOC. */
-
-static inline void
-gimple_phi_arg_set_location (gimple gs, size_t i, source_location loc)
-{
- gimple_phi_arg (gs, i)->locus = loc;
-}
-
-/* Return TRUE if argument I of phi node GS has a location record. */
-
-static inline bool
-gimple_phi_arg_has_location (gimple gs, size_t i)
-{
- return gimple_phi_arg_location (gs, i) != UNKNOWN_LOCATION;
-}
-
-
-/* Return the PHI nodes for basic block BB, or NULL if there are no
- PHI nodes. */
-static inline gimple_seq
-phi_nodes (const_basic_block bb)
-{
- gcc_checking_assert (!(bb->flags & BB_RTL));
- return bb->il.gimple.phi_nodes;
-}
-
-static inline gimple_seq *
-phi_nodes_ptr (basic_block bb)
-{
- gcc_checking_assert (!(bb->flags & BB_RTL));
- return &bb->il.gimple.phi_nodes;
-}
-
-/* Set PHI nodes of a basic block BB to SEQ. */
-
-static inline void
-set_phi_nodes (basic_block bb, gimple_seq seq)
-{
- gimple_stmt_iterator i;
-
- gcc_checking_assert (!(bb->flags & BB_RTL));
- bb->il.gimple.phi_nodes = seq;
- if (seq)
- for (i = gsi_start (seq); !gsi_end_p (i); gsi_next (&i))
- gimple_set_bb (gsi_stmt (i), bb);
-}
-
-/* Return the phi argument which contains the specified use. */
-
-static inline int
-phi_arg_index_from_use (use_operand_p use)
-{
- struct phi_arg_d *element, *root;
- size_t index;
- gimple phi;
-
- /* Since the use is the first thing in a PHI argument element, we can
- calculate its index based on casting it to an argument, and performing
- pointer arithmetic. */
-
- phi = USE_STMT (use);
-
- element = (struct phi_arg_d *)use;
- root = gimple_phi_arg (phi, 0);
- index = element - root;
-
- /* Make sure the calculation doesn't have any leftover bytes. If it does,
- then imm_use is likely not the first element in phi_arg_d. */
- gcc_checking_assert ((((char *)element - (char *)root)
- % sizeof (struct phi_arg_d)) == 0
- && index < gimple_phi_capacity (phi));
-
- return index;
-}
/* Return true if T (assumed to be a DECL) is a global variable.
A variable is considered global if its storage is not automatic. */
@@ -528,20 +154,6 @@ may_be_aliased (const_tree var)
}
-/* PHI nodes should contain only ssa_names and invariants. A test
- for ssa_name is definitely simpler; don't let invalid contents
- slip in in the meantime. */
-
-static inline bool
-phi_ssa_name_p (const_tree t)
-{
- if (TREE_CODE (t) == SSA_NAME)
- return true;
- gcc_checking_assert (is_gimple_min_invariant (t));
- return false;
-}
-
-
/* Returns the loop of the statement STMT. */
static inline struct loop *
@@ -555,536 +167,6 @@ loop_containing_stmt (gimple stmt)
}
-/* ----------------------------------------------------------------------- */
-
-/* The following set of routines are used to iterator over various type of
- SSA operands. */
-
-/* Return true if PTR is finished iterating. */
-static inline bool
-op_iter_done (const ssa_op_iter *ptr)
-{
- return ptr->done;
-}
-
-/* Get the next iterator use value for PTR. */
-static inline use_operand_p
-op_iter_next_use (ssa_op_iter *ptr)
-{
- use_operand_p use_p;
- gcc_checking_assert (ptr->iter_type == ssa_op_iter_use);
- if (ptr->uses)
- {
- use_p = USE_OP_PTR (ptr->uses);
- ptr->uses = ptr->uses->next;
- return use_p;
- }
- if (ptr->i < ptr->numops)
- {
- return PHI_ARG_DEF_PTR (ptr->stmt, (ptr->i)++);
- }
- ptr->done = true;
- return NULL_USE_OPERAND_P;
-}
-
-/* Get the next iterator def value for PTR. */
-static inline def_operand_p
-op_iter_next_def (ssa_op_iter *ptr)
-{
- gcc_checking_assert (ptr->iter_type == ssa_op_iter_def);
- if (ptr->flags & SSA_OP_VDEF)
- {
- tree *p;
- ptr->flags &= ~SSA_OP_VDEF;
- p = gimple_vdef_ptr (ptr->stmt);
- if (p && *p)
- return p;
- }
- if (ptr->flags & SSA_OP_DEF)
- {
- while (ptr->i < ptr->numops)
- {
- tree *val = gimple_op_ptr (ptr->stmt, ptr->i);
- ptr->i++;
- if (*val)
- {
- if (TREE_CODE (*val) == TREE_LIST)
- val = &TREE_VALUE (*val);
- if (TREE_CODE (*val) == SSA_NAME
- || is_gimple_reg (*val))
- return val;
- }
- }
- ptr->flags &= ~SSA_OP_DEF;
- }
-
- ptr->done = true;
- return NULL_DEF_OPERAND_P;
-}
-
-/* Get the next iterator tree value for PTR. */
-static inline tree
-op_iter_next_tree (ssa_op_iter *ptr)
-{
- tree val;
- gcc_checking_assert (ptr->iter_type == ssa_op_iter_tree);
- if (ptr->uses)
- {
- val = USE_OP (ptr->uses);
- ptr->uses = ptr->uses->next;
- return val;
- }
- if (ptr->flags & SSA_OP_VDEF)
- {
- ptr->flags &= ~SSA_OP_VDEF;
- if ((val = gimple_vdef (ptr->stmt)))
- return val;
- }
- if (ptr->flags & SSA_OP_DEF)
- {
- while (ptr->i < ptr->numops)
- {
- val = gimple_op (ptr->stmt, ptr->i);
- ptr->i++;
- if (val)
- {
- if (TREE_CODE (val) == TREE_LIST)
- val = TREE_VALUE (val);
- if (TREE_CODE (val) == SSA_NAME
- || is_gimple_reg (val))
- return val;
- }
- }
- ptr->flags &= ~SSA_OP_DEF;
- }
-
- ptr->done = true;
- return NULL_TREE;
-}
-
-
-/* This functions clears the iterator PTR, and marks it done. This is normally
- used to prevent warnings in the compile about might be uninitialized
- components. */
-
-static inline void
-clear_and_done_ssa_iter (ssa_op_iter *ptr)
-{
- ptr->i = 0;
- ptr->numops = 0;
- ptr->uses = NULL;
- ptr->iter_type = ssa_op_iter_none;
- ptr->stmt = NULL;
- ptr->done = true;
- ptr->flags = 0;
-}
-
-/* Initialize the iterator PTR to the virtual defs in STMT. */
-static inline void
-op_iter_init (ssa_op_iter *ptr, gimple stmt, int flags)
-{
- /* PHI nodes require a different iterator initialization path. We
- do not support iterating over virtual defs or uses without
- iterating over defs or uses at the same time. */
- gcc_checking_assert (gimple_code (stmt) != GIMPLE_PHI
- && (!(flags & SSA_OP_VDEF) || (flags & SSA_OP_DEF))
- && (!(flags & SSA_OP_VUSE) || (flags & SSA_OP_USE)));
- ptr->numops = 0;
- if (flags & (SSA_OP_DEF | SSA_OP_VDEF))
- {
- switch (gimple_code (stmt))
- {
- case GIMPLE_ASSIGN:
- case GIMPLE_CALL:
- ptr->numops = 1;
- break;
- case GIMPLE_ASM:
- ptr->numops = gimple_asm_noutputs (stmt);
- break;
- default:
- ptr->numops = 0;
- flags &= ~(SSA_OP_DEF | SSA_OP_VDEF);
- break;
- }
- }
- ptr->uses = (flags & (SSA_OP_USE|SSA_OP_VUSE)) ? gimple_use_ops (stmt) : NULL;
- if (!(flags & SSA_OP_VUSE)
- && ptr->uses
- && gimple_vuse (stmt) != NULL_TREE)
- ptr->uses = ptr->uses->next;
- ptr->done = false;
- ptr->i = 0;
-
- ptr->stmt = stmt;
- ptr->flags = flags;
-}
-
-/* Initialize iterator PTR to the use operands in STMT based on FLAGS. Return
- the first use. */
-static inline use_operand_p
-op_iter_init_use (ssa_op_iter *ptr, gimple stmt, int flags)
-{
- gcc_checking_assert ((flags & SSA_OP_ALL_DEFS) == 0
- && (flags & SSA_OP_USE));
- op_iter_init (ptr, stmt, flags);
- ptr->iter_type = ssa_op_iter_use;
- return op_iter_next_use (ptr);
-}
-
-/* Initialize iterator PTR to the def operands in STMT based on FLAGS. Return
- the first def. */
-static inline def_operand_p
-op_iter_init_def (ssa_op_iter *ptr, gimple stmt, int flags)
-{
- gcc_checking_assert ((flags & SSA_OP_ALL_USES) == 0
- && (flags & SSA_OP_DEF));
- op_iter_init (ptr, stmt, flags);
- ptr->iter_type = ssa_op_iter_def;
- return op_iter_next_def (ptr);
-}
-
-/* Initialize iterator PTR to the operands in STMT based on FLAGS. Return
- the first operand as a tree. */
-static inline tree
-op_iter_init_tree (ssa_op_iter *ptr, gimple stmt, int flags)
-{
- op_iter_init (ptr, stmt, flags);
- ptr->iter_type = ssa_op_iter_tree;
- return op_iter_next_tree (ptr);
-}
-
-
-/* If there is a single operand in STMT matching FLAGS, return it. Otherwise
- return NULL. */
-static inline tree
-single_ssa_tree_operand (gimple stmt, int flags)
-{
- tree var;
- ssa_op_iter iter;
-
- var = op_iter_init_tree (&iter, stmt, flags);
- if (op_iter_done (&iter))
- return NULL_TREE;
- op_iter_next_tree (&iter);
- if (op_iter_done (&iter))
- return var;
- return NULL_TREE;
-}
-
-
-/* If there is a single operand in STMT matching FLAGS, return it. Otherwise
- return NULL. */
-static inline use_operand_p
-single_ssa_use_operand (gimple stmt, int flags)
-{
- use_operand_p var;
- ssa_op_iter iter;
-
- var = op_iter_init_use (&iter, stmt, flags);
- if (op_iter_done (&iter))
- return NULL_USE_OPERAND_P;
- op_iter_next_use (&iter);
- if (op_iter_done (&iter))
- return var;
- return NULL_USE_OPERAND_P;
-}
-
-
-
-/* If there is a single operand in STMT matching FLAGS, return it. Otherwise
- return NULL. */
-static inline def_operand_p
-single_ssa_def_operand (gimple stmt, int flags)
-{
- def_operand_p var;
- ssa_op_iter iter;
-
- var = op_iter_init_def (&iter, stmt, flags);
- if (op_iter_done (&iter))
- return NULL_DEF_OPERAND_P;
- op_iter_next_def (&iter);
- if (op_iter_done (&iter))
- return var;
- return NULL_DEF_OPERAND_P;
-}
-
-
-/* Return true if there are zero operands in STMT matching the type
- given in FLAGS. */
-static inline bool
-zero_ssa_operands (gimple stmt, int flags)
-{
- ssa_op_iter iter;
-
- op_iter_init_tree (&iter, stmt, flags);
- return op_iter_done (&iter);
-}
-
-
-/* Return the number of operands matching FLAGS in STMT. */
-static inline int
-num_ssa_operands (gimple stmt, int flags)
-{
- ssa_op_iter iter;
- tree t;
- int num = 0;
-
- gcc_checking_assert (gimple_code (stmt) != GIMPLE_PHI);
- FOR_EACH_SSA_TREE_OPERAND (t, stmt, iter, flags)
- num++;
- return num;
-}
-
-static inline use_operand_p
-op_iter_init_phiuse (ssa_op_iter *ptr, gimple phi, int flags);
-
-/* Delink all immediate_use information for STMT. */
-static inline void
-delink_stmt_imm_use (gimple stmt)
-{
- ssa_op_iter iter;
- use_operand_p use_p;
-
- if (ssa_operands_active (cfun))
- FOR_EACH_PHI_OR_STMT_USE (use_p, stmt, iter, SSA_OP_ALL_USES)
- delink_imm_use (use_p);
-}
-
-
-/* If there is a single DEF in the PHI node which matches FLAG, return it.
- Otherwise return NULL_DEF_OPERAND_P. */
-static inline tree
-single_phi_def (gimple stmt, int flags)
-{
- tree def = PHI_RESULT (stmt);
- if ((flags & SSA_OP_DEF) && is_gimple_reg (def))
- return def;
- if ((flags & SSA_OP_VIRTUAL_DEFS) && !is_gimple_reg (def))
- return def;
- return NULL_TREE;
-}
-
-/* Initialize the iterator PTR for uses matching FLAGS in PHI. FLAGS should
- be either SSA_OP_USES or SSA_OP_VIRTUAL_USES. */
-static inline use_operand_p
-op_iter_init_phiuse (ssa_op_iter *ptr, gimple phi, int flags)
-{
- tree phi_def = gimple_phi_result (phi);
- int comp;
-
- clear_and_done_ssa_iter (ptr);
- ptr->done = false;
-
- gcc_checking_assert ((flags & (SSA_OP_USE | SSA_OP_VIRTUAL_USES)) != 0);
-
- comp = (is_gimple_reg (phi_def) ? SSA_OP_USE : SSA_OP_VIRTUAL_USES);
-
- /* If the PHI node doesn't the operand type we care about, we're done. */
- if ((flags & comp) == 0)
- {
- ptr->done = true;
- return NULL_USE_OPERAND_P;
- }
-
- ptr->stmt = phi;
- ptr->numops = gimple_phi_num_args (phi);
- ptr->iter_type = ssa_op_iter_use;
- ptr->flags = flags;
- return op_iter_next_use (ptr);
-}
-
-
-/* Start an iterator for a PHI definition. */
-
-static inline def_operand_p
-op_iter_init_phidef (ssa_op_iter *ptr, gimple phi, int flags)
-{
- tree phi_def = PHI_RESULT (phi);
- int comp;
-
- clear_and_done_ssa_iter (ptr);
- ptr->done = false;
-
- gcc_checking_assert ((flags & (SSA_OP_DEF | SSA_OP_VIRTUAL_DEFS)) != 0);
-
- comp = (is_gimple_reg (phi_def) ? SSA_OP_DEF : SSA_OP_VIRTUAL_DEFS);
-
- /* If the PHI node doesn't have the operand type we care about,
- we're done. */
- if ((flags & comp) == 0)
- {
- ptr->done = true;
- return NULL_DEF_OPERAND_P;
- }
-
- ptr->iter_type = ssa_op_iter_def;
- /* The first call to op_iter_next_def will terminate the iterator since
- all the fields are NULL. Simply return the result here as the first and
- therefore only result. */
- return PHI_RESULT_PTR (phi);
-}
-
-/* Return true is IMM has reached the end of the immediate use stmt list. */
-
-static inline bool
-end_imm_use_stmt_p (const imm_use_iterator *imm)
-{
- return (imm->imm_use == imm->end_p);
-}
-
-/* Finished the traverse of an immediate use stmt list IMM by removing the
- placeholder node from the list. */
-
-static inline void
-end_imm_use_stmt_traverse (imm_use_iterator *imm)
-{
- delink_imm_use (&(imm->iter_node));
-}
-
-/* Immediate use traversal of uses within a stmt require that all the
- uses on a stmt be sequentially listed. This routine is used to build up
- this sequential list by adding USE_P to the end of the current list
- currently delimited by HEAD and LAST_P. The new LAST_P value is
- returned. */
-
-static inline use_operand_p
-move_use_after_head (use_operand_p use_p, use_operand_p head,
- use_operand_p last_p)
-{
- gcc_checking_assert (USE_FROM_PTR (use_p) == USE_FROM_PTR (head));
- /* Skip head when we find it. */
- if (use_p != head)
- {
- /* If use_p is already linked in after last_p, continue. */
- if (last_p->next == use_p)
- last_p = use_p;
- else
- {
- /* Delink from current location, and link in at last_p. */
- delink_imm_use (use_p);
- link_imm_use_to_list (use_p, last_p);
- last_p = use_p;
- }
- }
- return last_p;
-}
-
-
-/* This routine will relink all uses with the same stmt as HEAD into the list
- immediately following HEAD for iterator IMM. */
-
-static inline void
-link_use_stmts_after (use_operand_p head, imm_use_iterator *imm)
-{
- use_operand_p use_p;
- use_operand_p last_p = head;
- gimple head_stmt = USE_STMT (head);
- tree use = USE_FROM_PTR (head);
- ssa_op_iter op_iter;
- int flag;
-
- /* Only look at virtual or real uses, depending on the type of HEAD. */
- flag = (is_gimple_reg (use) ? SSA_OP_USE : SSA_OP_VIRTUAL_USES);
-
- if (gimple_code (head_stmt) == GIMPLE_PHI)
- {
- FOR_EACH_PHI_ARG (use_p, head_stmt, op_iter, flag)
- if (USE_FROM_PTR (use_p) == use)
- last_p = move_use_after_head (use_p, head, last_p);
- }
- else
- {
- if (flag == SSA_OP_USE)
- {
- FOR_EACH_SSA_USE_OPERAND (use_p, head_stmt, op_iter, flag)
- if (USE_FROM_PTR (use_p) == use)
- last_p = move_use_after_head (use_p, head, last_p);
- }
- else if ((use_p = gimple_vuse_op (head_stmt)) != NULL_USE_OPERAND_P)
- {
- if (USE_FROM_PTR (use_p) == use)
- last_p = move_use_after_head (use_p, head, last_p);
- }
- }
- /* Link iter node in after last_p. */
- if (imm->iter_node.prev != NULL)
- delink_imm_use (&imm->iter_node);
- link_imm_use_to_list (&(imm->iter_node), last_p);
-}
-
-/* Initialize IMM to traverse over uses of VAR. Return the first statement. */
-static inline gimple
-first_imm_use_stmt (imm_use_iterator *imm, tree var)
-{
- imm->end_p = &(SSA_NAME_IMM_USE_NODE (var));
- imm->imm_use = imm->end_p->next;
- imm->next_imm_name = NULL_USE_OPERAND_P;
-
- /* iter_node is used as a marker within the immediate use list to indicate
- where the end of the current stmt's uses are. Initialize it to NULL
- stmt and use, which indicates a marker node. */
- imm->iter_node.prev = NULL_USE_OPERAND_P;
- imm->iter_node.next = NULL_USE_OPERAND_P;
- imm->iter_node.loc.stmt = NULL;
- imm->iter_node.use = NULL;
-
- if (end_imm_use_stmt_p (imm))
- return NULL;
-
- link_use_stmts_after (imm->imm_use, imm);
-
- return USE_STMT (imm->imm_use);
-}
-
-/* Bump IMM to the next stmt which has a use of var. */
-
-static inline gimple
-next_imm_use_stmt (imm_use_iterator *imm)
-{
- imm->imm_use = imm->iter_node.next;
- if (end_imm_use_stmt_p (imm))
- {
- if (imm->iter_node.prev != NULL)
- delink_imm_use (&imm->iter_node);
- return NULL;
- }
-
- link_use_stmts_after (imm->imm_use, imm);
- return USE_STMT (imm->imm_use);
-}
-
-/* This routine will return the first use on the stmt IMM currently refers
- to. */
-
-static inline use_operand_p
-first_imm_use_on_stmt (imm_use_iterator *imm)
-{
- imm->next_imm_name = imm->imm_use->next;
- return imm->imm_use;
-}
-
-/* Return TRUE if the last use on the stmt IMM refers to has been visited. */
-
-static inline bool
-end_imm_use_on_stmt_p (const imm_use_iterator *imm)
-{
- return (imm->imm_use == &(imm->iter_node));
-}
-
-/* Bump to the next use on the stmt IMM refers to, return NULL if done. */
-
-static inline use_operand_p
-next_imm_use_on_stmt (imm_use_iterator *imm)
-{
- imm->imm_use = imm->next_imm_name;
- if (end_imm_use_on_stmt_p (imm))
- return NULL_USE_OPERAND_P;
- else
- {
- imm->next_imm_name = imm->imm_use->next;
- return imm->imm_use;
- }
-}
/* Return true if VAR cannot be modified by the program. */