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-rw-r--r--gcc/config/tilepro/tilepro-multiply.h82
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diff --git a/gcc/config/tilepro/tilepro-multiply.h b/gcc/config/tilepro/tilepro-multiply.h
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-/* Header for constant multiple table for TILEPro.
- Copyright (C) 2011-2022 Free Software Foundation, Inc.
- Contributed by Walter Lee (walt@tilera.com)
-
- 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_TILEPRO_MULTIPLY_H
-#define GCC_TILEPRO_MULTIPLY_H
-
-/* A node of a tilepro_multiply_insn_seq, corresponding to a single
- machine instruction such as 'add', 's1a', or an shl by a
- constant. */
-struct tilepro_multiply_insn_seq_entry
-{
- /* Which operation this node performs (e.g. an add or sub). Don't
- use this directly, call get_opcode() table to get a
- insn_code. */
- unsigned char compressed_opcode;
-
- /* The left-hand side of this expression tree.
- If equal to 0, it refers to 'zero'.
- If equal to 1, it refers to the original input to the multiply
- operation.
- Otherwise, subtract two and it is an index into the containing
- tilepro_multiply_insn_seq's 'op' array. Since it can only point
- to some value that has already been computed it will always point
- to an earlier entry in the array. */
- unsigned char lhs;
-
- /* This is like lhs, but for the right-hand side. However, for shift
- opcodes this is a shift count rather than an operand index. */
- unsigned char rhs;
-};
-
-/* Maximum size of op array. */
-#define tilepro_multiply_insn_seq_MAX_OPERATIONS 4
-
-/* This defines a DAG describing how to multiply by a constant in
- terms of one or more machine instructions. */
-struct tilepro_multiply_insn_seq
-{
- /* The constant factor by which this expression tree multiplies its
- input. */
- int multiplier;
-
- /* The nodes of the parse tree. These are ordered so that
- instructions can be emitted in the same order that they appear in
- this array. Entry entry in this array can only refer to earlier
- entries in the array. */
- struct tilepro_multiply_insn_seq_entry
- op[tilepro_multiply_insn_seq_MAX_OPERATIONS];
-
-};
-
-/* A mapping from the compressed opcode to the corresponding enum
- insn_code. */
-extern const enum insn_code tilepro_multiply_insn_seq_decode_opcode[];
-
-/* Table mapping constant int multipliers to an expression tree that
- efficiently performs that multiplication. This is sorted by its
- 'multiplier' field so a binary search can look for matches. */
-extern const struct tilepro_multiply_insn_seq
- tilepro_multiply_insn_seq_table[];
-
-/* The number of elements in multiply_insn_seq_table. */
-extern const int tilepro_multiply_insn_seq_table_size;
-
-#endif /* !GCC_TILEPRO_MULTIPLY_H */