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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/resource.h
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/resource.h')
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diff --git a/gcc-4.9/gcc/resource.h b/gcc-4.9/gcc/resource.h
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+/* Definitions for computing resource usage of specific insns.
+ Copyright (C) 1999-2014 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_RESOURCE_H
+#define GCC_RESOURCE_H
+
+#include "hard-reg-set.h"
+#include "df.h"
+
+/* Macro to clear all resources. */
+#define CLEAR_RESOURCE(RES) \
+ do { (RES)->memory = (RES)->volatil = (RES)->cc = 0; \
+ CLEAR_HARD_REG_SET ((RES)->regs); } while (0)
+
+/* The resources used by a given insn. */
+struct resources
+{
+ char memory; /* Insn sets or needs a memory location. */
+ char volatil; /* Insn sets or needs a volatile memory loc. */
+ char cc; /* Insn sets or needs the condition codes. */
+ HARD_REG_SET regs; /* Which registers are set or needed. */
+};
+
+/* The kinds of rtl mark_*_resources will consider */
+enum mark_resource_type
+{
+ MARK_SRC_DEST = 0,
+ MARK_SRC_DEST_CALL = 1
+};
+
+extern void mark_target_live_regs (rtx, rtx, struct resources *);
+extern void mark_set_resources (rtx, struct resources *, int,
+ enum mark_resource_type);
+extern void mark_referenced_resources (rtx, struct resources *, bool);
+extern void clear_hashed_info_for_insn (rtx);
+extern void incr_ticks_for_insn (rtx);
+extern void mark_end_of_function_resources (rtx, bool);
+extern void init_resource_info (rtx);
+extern void free_resource_info (void);
+
+#endif /* GCC_RESOURCE_H */