/* Definitions of target machine for GNU compiler. NEC V850 series
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
Contributed by Jeff Law (law@cygnus.com).
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#ifndef GCC_V850_H
#define GCC_V850_H
builtin_assert( "cpu=v850" ); \
} while(0)
-/* Run-time compilation parameters selecting different hardware subsets. */
-
-extern int target_flags;
-
-/* Target flags bits, see below for an explanation of the bits. */
-#define MASK_GHS 0x00000001
-#define MASK_LONG_CALLS 0x00000002
-#define MASK_EP 0x00000004
-#define MASK_PROLOG_FUNCTION 0x00000008
-#define MASK_DEBUG 0x40000000
-
-#define MASK_CPU 0x00000030
-#define MASK_V850 0x00000010
-#define MASK_V850E 0x00000020
-#define MASK_SMALL_SLD 0x00000040
-
-#define MASK_BIG_SWITCH 0x00000100
-#define MASK_NO_APP_REGS 0x00000200
-#define MASK_DISABLE_CALLT 0x00000400
-#define MASK_STRICT_ALIGN 0x00000800
-
-#define MASK_US_BIT_SET 0x00001000
-#define MASK_US_MASK_SET 0x00002000
-
-/* Macros used in the machine description to test the flags. */
-
-/* The GHS calling convention support doesn't really work,
- mostly due to a lack of documentation. Outstanding issues:
-
- * How do varargs & stdarg really work. How to they handle
- passing structures (if at all).
-
- * Doubles are normally 4 byte aligned, except in argument
- lists where they are 8 byte aligned. Is the alignment
- in the argument list based on the first parameter,
- first stack parameter, etc etc.
-
- * Passing/returning of large structures probably isn't the same
- as GHS. We don't have enough documentation on their conventions
- to be compatible.
-
- * Tests of TARGET_SETUP_INCOMING_VARARGS need to be made runtime checks
- since it depends on TARGET_GHS. */
-#define TARGET_GHS (target_flags & MASK_GHS)
-
-/* Don't do PC-relative calls, instead load the address of the target
- function into a register and perform a register indirect call. */
-#define TARGET_LONG_CALLS (target_flags & MASK_LONG_CALLS)
-
-/* Whether to optimize space by using ep (r30) for pointers with small offsets
- in basic blocks. */
-#define TARGET_EP (target_flags & MASK_EP)
-
-/* Whether to call out-of-line functions to save registers or not. */
-#define TARGET_PROLOG_FUNCTION (target_flags & MASK_PROLOG_FUNCTION)
-
-#define TARGET_V850 ((target_flags & MASK_CPU) == MASK_V850)
-
-/* Whether to emit 2 byte per entry or 4 byte per entry switch tables. */
-#define TARGET_BIG_SWITCH (target_flags & MASK_BIG_SWITCH)
-
-/* General debug flag. */
-#define TARGET_DEBUG (target_flags & MASK_DEBUG)
-#define TARGET_V850E ((target_flags & MASK_V850E) == MASK_V850E)
-
-#define TARGET_US_BIT_SET (target_flags & MASK_US_BIT_SET)
-
-/* Whether to assume that the SLD.B and SLD.H instructions only have small
- displacement fields, thus allowing the generated code to run on any of
- the V850 range of processors. */
-#define TARGET_SMALL_SLD (target_flags & MASK_SMALL_SLD)
-
-/* True if callt will not be used for function prolog & epilog. */
-#define TARGET_DISABLE_CALLT (target_flags & MASK_DISABLE_CALLT)
-
-/* False if r2 and r5 can be used by the compiler. True if r2
- and r5 are to be fixed registers (for compatibility with GHS). */
-#define TARGET_NO_APP_REGS (target_flags & MASK_NO_APP_REGS)
-
-#define TARGET_STRICT_ALIGN (target_flags & MASK_STRICT_ALIGN)
-
-/* Macro to define tables used to set the flags.
- This is a list in braces of pairs in braces,
- each pair being { "NAME", VALUE }
- where VALUE is the bits to set or minus the bits to clear.
- An empty string NAME is used to identify the default VALUE. */
-
-#define TARGET_SWITCHES \
- {{ "ghs", MASK_GHS, N_("Support Green Hills ABI") }, \
- { "no-ghs", -MASK_GHS, "" }, \
- { "long-calls", MASK_LONG_CALLS, \
- N_("Prohibit PC relative function calls") },\
- { "no-long-calls", -MASK_LONG_CALLS, "" }, \
- { "ep", MASK_EP, \
- N_("Reuse r30 on a per function basis") }, \
- { "no-ep", -MASK_EP, "" }, \
- { "prolog-function", MASK_PROLOG_FUNCTION, \
- N_("Use stubs for function prologues") }, \
- { "no-prolog-function", -MASK_PROLOG_FUNCTION, "" }, \
- { "space", MASK_EP | MASK_PROLOG_FUNCTION, \
- N_("Same as: -mep -mprolog-function") }, \
- { "debug", MASK_DEBUG, N_("Enable backend debugging") }, \
- { "v850", MASK_V850, \
- N_("Compile for the v850 processor") }, \
- { "v850", -(MASK_V850 ^ MASK_CPU), "" }, \
- { "v850e1", MASK_V850E, N_("Compile for v850e1 processor") }, \
- { "v850e1", -(MASK_V850E ^ MASK_CPU), "" }, /* Make sure that the other bits are cleared. */ \
- { "v850e", MASK_V850E, N_("Compile for v850e processor") }, \
- { "v850e", -(MASK_V850E ^ MASK_CPU), "" }, /* Make sure that the other bits are cleared. */ \
- { "small-sld", MASK_SMALL_SLD, N_("Enable the use of the short load instructions") }, \
- { "no-small-sld", -MASK_SMALL_SLD, "" }, \
- { "disable-callt", MASK_DISABLE_CALLT, \
- N_("Do not use the callt instruction") }, \
- { "no-disable-callt", -MASK_DISABLE_CALLT, "" }, \
- { "US-bit-set", (MASK_US_BIT_SET | MASK_US_MASK_SET), "" }, \
- { "no-US-bit-set", -MASK_US_BIT_SET, "" }, \
- { "no-US-bit-set", MASK_US_MASK_SET, "" }, \
- { "app-regs", -MASK_NO_APP_REGS, "" }, \
- { "no-app-regs", MASK_NO_APP_REGS, \
- N_("Do not use registers r2 and r5") }, \
- { "strict-align", MASK_STRICT_ALIGN, \
- N_("Enforce strict alignment") }, \
- { "no-strict-align", -MASK_STRICT_ALIGN, "" }, \
- { "big-switch", MASK_BIG_SWITCH, \
- N_("Use 4 byte entries in switch tables") },\
- { "", MASK_DEFAULT, ""}}
+#define MASK_CPU (MASK_V850 | MASK_V850E)
/* Information about the various small memory areas. */
struct small_memory_info {
const char *name;
- const char *value;
long max;
long physical_max;
};
extern struct small_memory_info small_memory[(int)SMALL_MEMORY_max];
-#define TARGET_OPTIONS \
-{ \
- { "tda=", &small_memory[ (int)SMALL_MEMORY_TDA ].value, \
- N_("Set the max size of data eligible for the TDA area"), 0}, \
- { "tda-", &small_memory[ (int)SMALL_MEMORY_TDA ].value, "", 0}, \
- { "sda=", &small_memory[ (int)SMALL_MEMORY_SDA ].value, \
- N_("Set the max size of data eligible for the SDA area"), 0}, \
- { "sda-", &small_memory[ (int)SMALL_MEMORY_SDA ].value, "", 0}, \
- { "zda=", &small_memory[ (int)SMALL_MEMORY_ZDA ].value, \
- N_("Set the max size of data eligible for the ZDA area"), 0}, \
- { "zda-", &small_memory[ (int)SMALL_MEMORY_ZDA ].value, "", 0}, \
-}
-
-/* Sometimes certain combinations of command options do not make
- sense on a particular target machine. You can define a macro
- `OVERRIDE_OPTIONS' to take account of this. This macro, if
- defined, is executed once just after all the command options have
- been parsed.
-
- Don't use this macro to turn on various extra optimizations for
- `-O'. That is what `OPTIMIZATION_OPTIONS' is for. */
-#define OVERRIDE_OPTIONS override_options ()
-
-
/* Show we can debug even without a frame pointer. */
#define CAN_DEBUG_WITHOUT_FP
0, 1, 3, 4, 5, 30, 32, 33 /* fixed registers */ \
}
-/* If TARGET_NO_APP_REGS is not defined then add r2 and r5 to
+/* If TARGET_APP_REGS is not defined then add r2 and r5 to
the pool of fixed registers. See PR 14505. */
#define CONDITIONAL_REGISTER_USAGE \
{ \
- if (TARGET_NO_APP_REGS) \
+ if (!TARGET_APP_REGS) \
{ \
- fixed_regs[2] = 1; call_used_regs[2] = 1; \
- fixed_regs[5] = 1; call_used_regs[5] = 1; \
+ fixed_regs[2] = 1; call_used_regs[2] = 1; \
+ fixed_regs[5] = 1; call_used_regs[5] = 1; \
} \
}
#define STACK_GROWS_DOWNWARD
-/* Define this if the nominal address of the stack frame
+/* Define this to non-zero if the nominal address of the stack frame
is at the high-address end of the local variables;
that is, each additional local variable allocated
goes at a more negative offset in the frame. */
-#define FRAME_GROWS_DOWNWARD
+#define FRAME_GROWS_DOWNWARD 1
/* Offset within stack frame to start allocating local variables at.
If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
else if ((FROM) == ARG_POINTER_REGNUM) \
(OFFSET) = compute_frame_size (get_frame_size (), (long *)0); \
else \
- abort (); \
+ gcc_unreachable (); \
}
/* Keep the stack pointer constant throughout the function. */
#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
function_arg (&CUM, MODE, TYPE, NAMED)
-#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) \
- function_arg_partial_nregs (&CUM, MODE, TYPE, NAMED)
-
/* Initialize a variable CUM of type CUMULATIVE_ARGS
for a call to a function whose data type is FNTYPE.
For a library call, FNTYPE is 0. */
for the index in the tablejump instruction. */
#define CASE_VECTOR_MODE (TARGET_BIG_SWITCH ? SImode : HImode)
-/* Define this if the case instruction drops through after the table
- when the index is out of range. Don't define it if the case insn
- jumps to the default label instead. */
-/* #define CASE_DROPS_THROUGH */
-
/* Define as C expression which evaluates to nonzero if the tablejump
instruction expects the table to contain offsets from the address of the
table.
#define SYMBOL_REF_TDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_TDA) != 0)
#define SYMBOL_REF_SDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_SDA) != 0)
-/* Define this if you have defined special-purpose predicates in the
- file `MACHINE.c'. This macro is called within an initializer of an
- array of structures. The first field in the structure is the name
- of a predicate and the second field is an array of rtl codes. For
- each predicate, list all rtl codes that can be in expressions
- matched by the predicate. The list should have a trailing comma. */
-
-#define PREDICATE_CODES \
-{ "reg_or_0_operand", { REG, SUBREG, CONST_INT, CONST_DOUBLE }}, \
-{ "reg_or_int5_operand", { REG, SUBREG, CONST_INT }}, \
-{ "reg_or_int9_operand", { REG, SUBREG, CONST_INT }}, \
-{ "reg_or_const_operand", { REG, CONST_INT }}, \
-{ "call_address_operand", { REG, SYMBOL_REF }}, \
-{ "movsi_source_operand", { LABEL_REF, SYMBOL_REF, CONST_INT, \
- CONST_DOUBLE, CONST, HIGH, MEM, \
- REG, SUBREG }}, \
-{ "special_symbolref_operand", { SYMBOL_REF }}, \
-{ "power_of_two_operand", { CONST_INT }}, \
-{ "pattern_is_ok_for_prologue", { PARALLEL }}, \
-{ "pattern_is_ok_for_epilogue", { PARALLEL }}, \
-{ "register_is_ok_for_epilogue",{ REG }}, \
-{ "pattern_is_ok_for_dispose", { PARALLEL }}, \
-{ "pattern_is_ok_for_prepare", { PARALLEL }}, \
-{ "register_is_ok_for_dispose", { REG }}, \
-{ "not_power_of_two_operand", { CONST_INT }},
-
#endif /* ! GCC_V850_H */
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