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-rw-r--r--gcc/target.h83
1 files changed, 46 insertions, 37 deletions
diff --git a/gcc/target.h b/gcc/target.h
index eae0b76a899..12fd9b085a0 100644
--- a/gcc/target.h
+++ b/gcc/target.h
@@ -1,5 +1,6 @@
/* Data structure definitions for a generic GCC target.
- Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ 2011
Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
@@ -49,9 +50,24 @@
#ifndef GCC_TARGET_H
#define GCC_TARGET_H
-#include "tm.h"
#include "insn-modes.h"
+#ifdef ENABLE_CHECKING
+
+typedef struct { void *magic; void *p; } cumulative_args_t;
+
+#else /* !ENABLE_CHECKING */
+
+/* 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 !ENABLE_CHECKING compilation. */
+
+typedef union { void *p; } cumulative_args_t;
+
+#endif /* !ENABLE_CHECKING */
+
/* Types used by the record_gcc_switches() target function. */
typedef enum
{
@@ -131,41 +147,6 @@ enum vect_cost_for_stmt
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. */
-};
-
-/* 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;
-};
-
/* The target structure. This holds all the backend hooks. */
#define DEFHOOKPOD(NAME, DOC, TYPE, INIT) TYPE NAME;
#define DEFHOOK(NAME, DOC, TYPE, PARAMS, INIT) TYPE (* NAME) PARAMS;
@@ -176,4 +157,32 @@ struct default_options
extern struct gcc_target targetm;
+#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)
+{
+#ifdef ENABLE_CHECKING
+ gcc_assert (arg.magic == CUMULATIVE_ARGS_MAGIC);
+#endif /* ENABLE_CHECKING */
+ return (CUMULATIVE_ARGS *) arg.p;
+}
+
+static inline cumulative_args_t
+pack_cumulative_args (CUMULATIVE_ARGS *arg)
+{
+ cumulative_args_t ret;
+
+#ifdef ENABLE_CHECKING
+ ret.magic = CUMULATIVE_ARGS_MAGIC;
+#endif /* ENABLE_CHECKING */
+ ret.p = (void *) arg;
+ return ret;
+}
+#endif /* GCC_TM_H */
+
#endif /* GCC_TARGET_H */