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comparison gcc/config/alpha/alpha.h @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 84e7813d76e9
children
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131:84e7813d76e9 145:1830386684a0
1 /* Definitions of target machine for GNU compiler, for DEC Alpha. 1 /* Definitions of target machine for GNU compiler, for DEC Alpha.
2 Copyright (C) 1992-2018 Free Software Foundation, Inc. 2 Copyright (C) 1992-2020 Free Software Foundation, Inc.
3 Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) 3 Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
4 4
5 This file is part of GCC. 5 This file is part of GCC.
6 6
7 GCC is free software; you can redistribute it and/or modify 7 GCC is free software; you can redistribute it and/or modify
757 in one reasonably fast instruction. */ 757 in one reasonably fast instruction. */
758 758
759 #define MOVE_MAX 8 759 #define MOVE_MAX 8
760 760
761 /* If a memory-to-memory move would take MOVE_RATIO or more simple 761 /* If a memory-to-memory move would take MOVE_RATIO or more simple
762 move-instruction pairs, we will do a movmem or libcall instead. 762 move-instruction pairs, we will do a cpymem or libcall instead.
763 763
764 Without byte/word accesses, we want no more than four instructions; 764 Without byte/word accesses, we want no more than four instructions;
765 with, several single byte accesses are better. */ 765 with, several single byte accesses are better. */
766 766
767 #define MOVE_RATIO(speed) (TARGET_BWX ? 7 : 2) 767 #define MOVE_RATIO(speed) (TARGET_BWX ? 7 : 2)