/* Data structure definitions for a generic GCC target.
- Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 2001-2017 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
#ifndef GCC_TARGET_H
#define GCC_TARGET_H
+#include "insn-codes.h"
#include "tm.h"
-#include "insn-modes.h"
+#include "hard-reg-set.h"
+
+#if CHECKING_P
+
+struct cumulative_args_t { void *magic; void *p; };
+
+#else /* !CHECKING_P */
+
+/* When using a GCC build compiler, we could use
+ __attribute__((transparent_union)) to get cumulative_args_t function
+ arguments passed like scalars where the ABI would mandate a less
+ efficient way of argument passing otherwise. However, that would come
+ at the cost of less type-safe !CHECKING_P compilation. */
+
+union cumulative_args_t { void *p; };
+
+#endif /* !CHECKING_P */
/* Types used by the record_gcc_switches() target function. */
-typedef enum
+enum print_switch_type
{
SWITCH_TYPE_PASSED, /* A switch passed on the command line. */
SWITCH_TYPE_ENABLED, /* An option that is currently enabled. */
SWITCH_TYPE_DESCRIPTIVE, /* Descriptive text, not a switch or option. */
SWITCH_TYPE_LINE_START, /* Please emit any necessary text at the start of a line. */
SWITCH_TYPE_LINE_END /* Please emit a line terminator. */
-}
-print_switch_type;
+};
+
+/* Types of memory operation understood by the "by_pieces" infrastructure.
+ Used by the TARGET_USE_BY_PIECES_INFRASTRUCTURE_P target hook and
+ internally by the functions in expr.c. */
+
+enum by_pieces_operation
+{
+ CLEAR_BY_PIECES,
+ MOVE_BY_PIECES,
+ SET_BY_PIECES,
+ STORE_BY_PIECES,
+ COMPARE_BY_PIECES
+};
+
+extern unsigned HOST_WIDE_INT by_pieces_ninsns (unsigned HOST_WIDE_INT,
+ unsigned int,
+ unsigned int,
+ by_pieces_operation);
typedef int (* print_switch_fn_type) (print_switch_type, const char *);
we disable such optimizations on such targets, using this function. */
extern bool target_default_pointer_address_modes_p (void);
+/* For hooks which use the MOVE_RATIO macro, this gives the legacy default
+ behavior. */
+extern unsigned int get_move_ratio (bool);
+
struct stdarg_info;
struct spec_info_def;
+struct hard_reg_set_container;
+struct cgraph_node;
+struct cgraph_simd_clone;
/* The struct used by the secondary_reload target hook. */
-typedef struct secondary_reload_info
+struct secondary_reload_info
{
/* icode is actually an enum insn_code, but we don't want to force every
file that includes target.h to include optabs.h . */
compatibility hook. */
struct secondary_reload_info *prev_sri;
int t_icode; /* Actually an enum insn_code - see above. */
-} secondary_reload_info;
+};
/* This is defined in sched-int.h . */
struct _dep;
/* This is defined in cfgloop.h . */
struct loop;
+/* This is defined in ifcvt.h. */
+struct noce_if_info;
+
+/* This is defined in tree-ssa-alias.h. */
+struct ao_ref;
+
+/* This is defined in tree-vectorizer.h. */
+struct _stmt_vec_info;
+
+/* These are defined in tree-vect-stmts.c. */
+extern tree stmt_vectype (struct _stmt_vec_info *);
+extern bool stmt_in_inner_loop_p (struct _stmt_vec_info *);
+
/* Assembler instructions for creating various kinds of integer object. */
struct asm_int_op
scalar_to_vec,
cond_branch_not_taken,
cond_branch_taken,
- vec_perm
-};
-
-/* Sets of optimization levels at which an option may be enabled by
- default_options_optimization. */
-enum opt_levels
-{
- OPT_LEVELS_NONE, /* No levels (mark end of array). */
- OPT_LEVELS_ALL, /* All levels (used by targets to disable options
- enabled in target-independent code). */
- OPT_LEVELS_0_ONLY, /* -O0 only. */
- OPT_LEVELS_1_PLUS, /* -O1 and above, including -Os. */
- OPT_LEVELS_1_PLUS_SPEED_ONLY, /* -O1 and above, but not -Os. */
- OPT_LEVELS_2_PLUS, /* -O2 and above, including -Os. */
- OPT_LEVELS_2_PLUS_SPEED_ONLY, /* -O2 and above, but not -Os. */
- OPT_LEVELS_3_PLUS, /* -O3 and above. */
- OPT_LEVELS_3_PLUS_AND_SIZE, /* -O3 and above and -Os. */
- OPT_LEVELS_SIZE, /* -Os only. */
- OPT_LEVELS_FAST /* -Ofast only. */
+ vec_perm,
+ vec_promote_demote,
+ vec_construct
};
-/* Description of options to enable by default at given levels. */
-struct default_options
-{
- /* The levels at which to enable the option. */
- enum opt_levels levels;
-
- /* The option index and argument or enabled/disabled sense of the
- option, as passed to handle_generated_option. If ARG is NULL and
- the option allows a negative form, the option is considered to be
- passed in negative form when the optimization level is not one of
- those in LEVELS (in order to handle changes to the optimization
- level with the "optimize" attribute). */
- size_t opt_index;
- const char *arg;
- int value;
+/* Separate locations for which the vectorizer cost model should
+ track costs. */
+enum vect_cost_model_location {
+ vect_prologue = 0,
+ vect_body = 1,
+ vect_epilogue = 2
};
/* The target structure. This holds all the backend hooks. */
extern struct gcc_target targetm;
-/* Each target can provide their own. */
-extern struct gcc_targetcm targetcm;
+#ifdef GCC_TM_H
+
+#ifndef CUMULATIVE_ARGS_MAGIC
+#define CUMULATIVE_ARGS_MAGIC ((void *) &targetm.calls)
+#endif
+
+static inline CUMULATIVE_ARGS *
+get_cumulative_args (cumulative_args_t arg)
+{
+#if CHECKING_P
+ gcc_assert (arg.magic == CUMULATIVE_ARGS_MAGIC);
+#endif /* CHECKING_P */
+ return (CUMULATIVE_ARGS *) arg.p;
+}
+
+static inline cumulative_args_t
+pack_cumulative_args (CUMULATIVE_ARGS *arg)
+{
+ cumulative_args_t ret;
+
+#if CHECKING_P
+ ret.magic = CUMULATIVE_ARGS_MAGIC;
+#endif /* CHECKING_P */
+ ret.p = (void *) arg;
+ return ret;
+}
+#endif /* GCC_TM_H */
#endif /* GCC_TARGET_H */
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