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diff --git a/lib/gcc/arm-none-eabi/13.2.1/plugin/include/tree-ssa-loop.h b/lib/gcc/arm-none-eabi/13.2.1/plugin/include/tree-ssa-loop.h
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+/* Header file for SSA loop optimizations.
+ Copyright (C) 2013-2023 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 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the 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 COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_TREE_SSA_LOOP_H
+#define GCC_TREE_SSA_LOOP_H
+
+
+/* Affine iv. */
+
+struct affine_iv
+{
+ /* Iv = BASE + STEP * i. */
+ tree base, step;
+
+ /* True if this iv does not overflow. */
+ bool no_overflow;
+};
+
+/* Description of number of iterations of a loop. All the expressions inside
+ the structure can be evaluated at the end of the loop's preheader
+ (and due to ssa form, also anywhere inside the body of the loop). */
+
+class tree_niter_desc
+{
+public:
+ tree assumptions; /* The boolean expression. If this expression evaluates
+ to false, then the other fields in this structure
+ should not be used; there is no guarantee that they
+ will be correct. */
+ tree may_be_zero; /* The boolean expression. If it evaluates to true,
+ the loop will exit in the first iteration (i.e.
+ its latch will not be executed), even if the niter
+ field says otherwise. */
+ tree niter; /* The expression giving the number of iterations of
+ a loop (provided that assumptions == true and
+ may_be_zero == false), more precisely the number
+ of executions of the latch of the loop. */
+ widest_int max; /* The upper bound on the number of iterations of
+ the loop. If niter is constant, then these values
+ must agree. */
+
+ /* The simplified shape of the exit condition. This information is used by
+ loop unrolling. If CMP is ERROR_MARK, then the loop cannot be unrolled.
+ Otherwise, the loop exits if CONTROL CMP BOUND is false, where CMP is one
+ of NE_EXPR, LT_EXPR, or GT_EXPR, and CONTROL.STEP is positive if CMP is
+ LT_EXPR and negative if CMP is GT_EXPR. */
+ affine_iv control;
+ tree bound;
+ enum tree_code cmp;
+};
+
+extern bool for_each_index (tree *, bool (*) (tree, tree *, void *), void *);
+extern char *get_lsm_tmp_name (tree ref, unsigned n, const char *suffix = NULL);
+extern unsigned tree_num_loop_insns (class loop *, struct eni_weights *);
+
+/* Returns the loop of the statement STMT. */
+
+inline class loop *
+loop_containing_stmt (gimple *stmt)
+{
+ basic_block bb = gimple_bb (stmt);
+ if (!bb)
+ return NULL;
+
+ return bb->loop_father;
+}
+
+#endif /* GCC_TREE_SSA_LOOP_H */