1 /* Target Definitions for MorphoRISC1
2 Copyright (C) 2005 Free Software Foundation, Inc.
3 Contributed by Red Hat, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published
9 by the Free Software Foundation; either version 2, or (at your
10 option) any later version.
12 GCC is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
22 extern struct rtx_def * ms1_ucmpsi3_libcall;
37 extern enum processor_type ms1_cpu;
40 /* A C string constant that tells the GCC driver program options to pass to
43 #define ASM_SPEC "%{march=ms1-16-002: -march=ms1-16-002} %{march=ms1-16-003: -march=ms1-16-003} %{!march=*: -march=ms1-16-002}"
45 /* A string to pass to at the end of the command given to the linker. */
47 #define LIB_SPEC "--start-group -lc -lsim --end-group \
49 march=ms1-64-001:-T 64-001.ld%s; \
50 march=MS1-64-001:-T 64-001.ld%s; \
51 march=ms1-16-002:-T 16-002.ld%s; \
52 march=MS1-16-002:-T 16-002.ld%s; \
53 march=ms1-16-003:-T 16-003.ld%s; \
54 march=MS1-16-003:-T 16-003.ld%s}"
56 /* A string to pass at the very beginning of the command given to the
59 #define STARTFILE_SPEC "%{msim:crt0.o%s;\
60 march=ms1-64-001:%{!mno-crt0:crt0-64-001.o%s} startup-64-001.o%s; \
61 march=MS1-64-001:%{!mno-crt0:crt0-64-001.o%s} startup-64-001.o%s; \
62 march=ms1-16-002:%{!mno-crt0:crt0-16-002.o%s} startup-16-002.o%s; \
63 march=MS1-16-002:%{!mno-crt0:crt0-16-002.o%s} startup-16-002.o%s; \
64 march=ms1-16-003:%{!mno-crt0:crt0-16-003.o%s} startup-16-003.o%s; \
65 march=MS1-16-003:%{!mno-crt0:crt0-16-003.o%s} startup-16-003.o%s} \
66 crti.o%s crtbegin.o%s"
68 /* A string to pass at the end of the command given to the linker. */
70 #define ENDFILE_SPEC "%{msim:exit.o%s; \
71 march=ms1-64-001:exit-64-001.o%s; \
72 march=MS1-64-001:exit-64-001.o%s; \
73 march=ms1-16-002:exit-16-002.o%s; \
74 march=MS1-16-002:exit-16-002.o%s; \
75 march=ms1-16-003:exit-16-003.o%s; \
76 march=MS1-16-003:exit-16-003.o%s} \
79 /* Run-time target specifications. */
81 #define TARGET_CPU_CPP_BUILTINS() \
84 builtin_define_std ("ms1"); \
85 builtin_assert ("machine=ms1"); \
89 #define TARGET_MS1_64_001 (ms1_cpu == PROCESSOR_MS1_64_001)
90 #define TARGET_MS1_16_002 (ms1_cpu == PROCESSOR_MS1_16_002)
91 #define TARGET_MS1_16_003 (ms1_cpu == PROCESSOR_MS1_16_003)
93 #define TARGET_VERSION fprintf (stderr, " (ms1)");
95 #define OVERRIDE_OPTIONS ms1_override_options ()
97 #define CAN_DEBUG_WITHOUT_FP 1
100 /* Storage Layout. */
102 #define BITS_BIG_ENDIAN 0
104 #define BYTES_BIG_ENDIAN 1
106 #define WORDS_BIG_ENDIAN 1
108 #define UNITS_PER_WORD 4
110 /* A macro to update MODE and UNSIGNEDP when an object whose type is TYPE and
111 which has the specified mode and signedness is to be stored in a register.
112 This macro is only called when TYPE is a scalar type.
114 On most RISC machines, which only have operations that operate on a full
115 register, define this macro to set M to `word_mode' if M is an integer mode
116 narrower than `BITS_PER_WORD'. In most cases, only integer modes should be
117 widened because wider-precision floating-point operations are usually more
118 expensive than their narrower counterparts.
120 For most machines, the macro definition does not change UNSIGNEDP. However,
121 some machines, have instructions that preferentially handle either signed or
122 unsigned quantities of certain modes. For example, on the DEC Alpha, 32-bit
123 loads from memory and 32-bit add instructions sign-extend the result to 64
124 bits. On such machines, set UNSIGNEDP according to which kind of extension
127 Do not define this macro if it would never modify MODE. */
128 #define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \
131 if (GET_MODE_CLASS (MODE) == MODE_INT \
132 && GET_MODE_SIZE (MODE) < 4) \
137 /* Normal alignment required for function parameters on the stack, in bits.
138 All stack parameters receive at least this much alignment regardless of data
139 type. On most machines, this is the same as the size of an integer. */
140 #define PARM_BOUNDARY 32
142 /* Define this macro to the minimum alignment enforced by hardware for
143 the stack pointer on this machine. The definition is a C
144 expression for the desired alignment (measured in bits). This
145 value is used as a default if PREFERRED_STACK_BOUNDARY is not
146 defined. On most machines, this should be the same as
148 #define STACK_BOUNDARY 32
150 /* Alignment required for a function entry point, in bits. */
151 #define FUNCTION_BOUNDARY 32
153 /* Biggest alignment that any data type can require on this machine,
155 #define BIGGEST_ALIGNMENT 32
157 /* If defined, a C expression to compute the alignment for a variable
158 in the static store. TYPE is the data type, and ALIGN is the
159 alignment that the object would ordinarily have. The value of this
160 macro is used instead of that alignment to align the object.
162 If this macro is not defined, then ALIGN is used. */
163 #define DATA_ALIGNMENT(TYPE, ALIGN) \
164 (TREE_CODE (TYPE) == ARRAY_TYPE \
165 && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \
166 && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
168 /* If defined, a C expression to compute the alignment given to a constant that
169 is being placed in memory. CONSTANT is the constant and ALIGN is the
170 alignment that the object would ordinarily have. The value of this macro is
171 used instead of that alignment to align the object.
173 If this macro is not defined, then ALIGN is used.
175 The typical use of this macro is to increase alignment for string constants
176 to be word aligned so that `strcpy' calls that copy constants can be done
178 #define CONSTANT_ALIGNMENT(EXP, ALIGN) \
179 (TREE_CODE (EXP) == STRING_CST \
180 && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
182 /* Number of bits which any structure or union's size must be a multiple of.
183 Each structure or union's size is rounded up to a multiple of this.
185 If you do not define this macro, the default is the same as `BITS_PER_UNIT'. */
186 #define STRUCTURE_SIZE_BOUNDARY 32
188 /* Define this macro to be the value 1 if instructions will fail to work if
189 given data not on the nominal alignment. If instructions will merely go
190 slower in that case, define this macro as 0. */
191 #define STRICT_ALIGNMENT 1
193 /* Define this if you wish to imitate the way many other C compilers handle
194 alignment of bitfields and the structures that contain them. */
195 #define PCC_BITFIELD_TYPE_MATTERS 1
197 /* Layout of Source Language Data Types. */
199 #define INT_TYPE_SIZE 32
201 #define SHORT_TYPE_SIZE 16
203 #define LONG_TYPE_SIZE 32
205 #define LONG_LONG_TYPE_SIZE 64
207 #define CHAR_TYPE_SIZE 8
209 #define FLOAT_TYPE_SIZE 32
211 #define DOUBLE_TYPE_SIZE 64
213 #define LONG_DOUBLE_TYPE_SIZE 64
215 #define DEFAULT_SIGNED_CHAR 1
217 /* Register Basics. */
219 /* General purpose registers. */
220 #define GPR_FIRST 0 /* First gpr */
221 #define GPR_LAST 15 /* Last possible gpr */
223 #define GPR_R0 0 /* Always 0 */
224 #define GPR_R7 7 /* Used as a scratch register */
225 #define GPR_R8 8 /* Used as a scratch register */
226 #define GPR_R9 9 /* Used as a scratch register */
227 #define GPR_R10 10 /* Used as a scratch register */
228 #define GPR_R11 11 /* Used as a scratch register */
229 #define GPR_FP 12 /* Frame pointer */
230 #define GPR_SP 13 /* Stack pointer */
231 #define GPR_LINK 14 /* Saved return address as
232 seen by the caller */
233 #define GPR_INTERRUPT_LINK 15 /* hold return addres for interrupts */
235 /* Argument register that is eliminated in favor of the frame and/or stack
236 pointer. Also add register to point to where the return address is
238 #define SPECIAL_REG_FIRST (GPR_LAST + 1)
239 #define SPECIAL_REG_LAST (SPECIAL_REG_FIRST)
240 #define ARG_POINTER_REGNUM (SPECIAL_REG_FIRST + 0)
241 #define SPECIAL_REG_P(R) ((R) == SPECIAL_REG_FIRST)
243 /* The first/last register that can contain the arguments to a function. */
244 #define FIRST_ARG_REGNUM 1
245 #define LAST_ARG_REGNUM 4
247 /* The register used to hold functions return value */
248 #define RETVAL_REGNUM 11
250 #define FIRST_PSEUDO_REGISTER (GPR_FIRST + 17)
252 #define IS_PSEUDO_P(R) (REGNO (R) >= FIRST_PSEUDO_REGISTER)
254 /* R0 always has the value 0
256 R12 FP pointer to active frame
257 R13 SP pointer to top of stack
258 R14 RA return address
259 R15 IRA interrupt return address. */
260 #define FIXED_REGISTERS { 1, 0, 0, 0, 0, 0, 0, 0, \
261 0, 0, 0, 0, 1, 1, 1, 1, \
265 /* Like `FIXED_REGISTERS' but has 1 for each register that is clobbered (in
266 general) by function calls as well as for fixed registers. This macro
267 therefore identifies the registers that are not available for general
268 allocation of values that must live across function calls. */
269 #define CALL_USED_REGISTERS { 1, 1, 1, 1, 1, 0, 0, 1, \
270 1, 1, 1, 1, 1, 1, 1, 1, \
275 /* How Values Fit in Registers. */
277 #define HARD_REGNO_NREGS(REGNO, MODE) \
278 ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
280 #define HARD_REGNO_MODE_OK(REGNO, MODE) 1
282 /* A C expression that is nonzero if a value of mode MODE1 is
283 accessible in mode MODE2 without copying. */
284 #define MODES_TIEABLE_P(MODE1, MODE2) 1
286 /* Register Classes. */
295 #define GENERAL_REGS ALL_REGS
297 #define N_REG_CLASSES ((int) LIM_REG_CLASSES)
299 #define REG_CLASS_NAMES {"NO_REGS", "ALL_REGS" }
301 #define REG_CLASS_CONTENTS \
304 { (((1 << (GPR_LAST + 1)) - 1) & ~(1 << GPR_FIRST)), 0x0 }, \
307 /* A C expression whose value is a register class containing hard register
308 REGNO. In general there is more than one such class; choose a class which
309 is "minimal", meaning that no smaller class also contains the register. */
310 #define REGNO_REG_CLASS(REGNO) GENERAL_REGS
312 #define BASE_REG_CLASS GENERAL_REGS
314 #define INDEX_REG_CLASS NO_REGS
316 #define REG_CLASS_FROM_LETTER(CHAR) NO_REGS
318 #define REGNO_OK_FOR_BASE_P(NUM) 1
320 #define REGNO_OK_FOR_INDEX_P(NUM) 1
322 /* A C expression that places additional restrictions on the register class to
323 use when it is necessary to copy value X into a register in class CLASS.
324 The value is a register class; perhaps CLASS, or perhaps another, smaller
325 class. On many machines, the following definition is safe:
327 #define PREFERRED_RELOAD_CLASS(X,CLASS) CLASS
329 #define PREFERRED_RELOAD_CLASS(X, CLASS) (CLASS)
331 #define SECONDARY_RELOAD_CLASS(CLASS,MODE,X) \
332 ms1_secondary_reload_class((CLASS), (MODE), (X))
334 /* A C expression for the maximum number of consecutive registers of
335 class CLASS needed to hold a value of mode MODE. */
336 #define CLASS_MAX_NREGS(CLASS, MODE) \
337 ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
341 `I' is used for the range of constants an arithmetic insn can
342 actually contain (16 bits signed integers).
344 `J' is used for the range which is just zero (ie, $r0).
346 `K' is used for the range of constants a logical insn can actually
347 contain (16 bit zero-extended integers).
349 `L' is used for the range of constants that be loaded with lui
350 (ie, the bottom 16 bits are zero).
352 `M' is used for the range of constants that take two words to load
353 (ie, not matched by `I', `K', and `L').
355 `N' is used for negative 16 bit constants other than -65536.
357 `O' is a 15 bit signed integer.
359 `P' is used for positive 16 bit constants. */
361 #define SMALL_INT(X) ((unsigned HOST_WIDE_INT) (INTVAL (X) + 0x8000) < 0x10000)
362 #define SMALL_INT_UNSIGNED(X) ((unsigned HOST_WIDE_INT) (INTVAL (X)) < 0x10000)
364 /* A C expression that defines the machine-dependent operand
365 constraint letters that specify particular ranges of integer
366 values. If C is one of those letters, the expression should check
367 that VALUE, an integer, is in the appropriate range and return 1 if
368 so, 0 otherwise. If C is not one of those letters, the value
369 should be 0 regardless of VALUE. */
370 #define CONST_OK_FOR_LETTER_P(VALUE, C) \
371 ((C) == 'I' ? ((unsigned HOST_WIDE_INT) ((VALUE) + 0x8000) < 0x10000) \
372 : (C) == 'J' ? ((VALUE) == 0) \
373 : (C) == 'K' ? ((unsigned HOST_WIDE_INT) (VALUE) < 0x10000) \
374 : (C) == 'L' ? (((VALUE) & 0x0000ffff) == 0 \
375 && (((VALUE) & ~2147483647) == 0 \
376 || ((VALUE) & ~2147483647) == ~2147483647)) \
377 : (C) == 'M' ? ((((VALUE) & ~0x0000ffff) != 0) \
378 && (((VALUE) & ~0x0000ffff) != ~0x0000ffff) \
379 && (((VALUE) & 0x0000ffff) != 0 \
380 || (((VALUE) & ~2147483647) != 0 \
381 && ((VALUE) & ~2147483647) != ~2147483647))) \
382 : (C) == 'N' ? ((unsigned HOST_WIDE_INT) ((VALUE) + 0xffff) < 0xffff) \
383 : (C) == 'O' ? ((unsigned HOST_WIDE_INT) ((VALUE) + 0x4000) < 0x8000) \
384 : (C) == 'P' ? ((VALUE) != 0 && (((VALUE) & ~0x0000ffff) == 0)) \
387 /* A C expression that defines the machine-dependent operand constraint letters
388 (`G', `H') that specify particular ranges of `const_double' values. */
389 #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 0
391 /* Most negative value represent on ms1 */
392 #define MS1_MIN_INT 0x80000000
394 /* Basic Stack Layout. */
398 FROM_PROCESSOR_TO_MEM,
399 FROM_MEM_TO_PROCESSOR
402 /* Tell prologue and epilogue if register REGNO should be saved / restored.
403 The return address and frame pointer are treated separately.
404 Don't consider them here. */
405 #define MUST_SAVE_REGISTER(regno) \
406 ( (regno) != GPR_LINK \
407 && (regno) != GPR_FP \
408 && (regno) != GPR_SP \
409 && (regno) != GPR_R0 \
410 && (( regs_ever_live [regno] && ! call_used_regs [regno] ) \
411 /* Save ira register in an interrupt handler. */ \
412 || (interrupt_handler && (regno) == GPR_INTERRUPT_LINK) \
413 /* Save any register used in an interrupt handler. */ \
414 || (interrupt_handler && regs_ever_live [regno]) \
415 /* Save call clobbered registers in non-leaf interrupt \
417 || (interrupt_handler && call_used_regs[regno] \
418 && !current_function_is_leaf) \
419 ||(current_function_calls_eh_return \
420 && (regno == GPR_R7 || regno == GPR_R8)) \
424 #define STACK_GROWS_DOWNWARD 1
426 /* Offset from the frame pointer to the first local variable slot to be
429 If `FRAME_GROWS_DOWNWARD', find the next slot's offset by
430 subtracting the first slot's length from `STARTING_FRAME_OFFSET'.
431 Otherwise, it is found by adding the length of the first slot to
432 the value `STARTING_FRAME_OFFSET'. */
433 #define STARTING_FRAME_OFFSET current_function_outgoing_args_size
435 /* Offset from the argument pointer register to the first argument's address.
436 On some machines it may depend on the data type of the function.
438 If `ARGS_GROW_DOWNWARD', this is the offset to the location above the first
439 argument's address. */
440 #define FIRST_PARM_OFFSET(FUNDECL) 0
442 #define RETURN_ADDR_RTX(COUNT, FRAMEADDR) \
443 ms1_return_addr_rtx (COUNT)
445 /* A C expression whose value is RTL representing the location of the incoming
446 return address at the beginning of any function, before the prologue. This
447 RTL is either a `REG', indicating that the return value is saved in `REG',
448 or a `MEM' representing a location in the stack.
450 You only need to define this macro if you want to support call frame
451 debugging information like that provided by DWARF 2. */
452 #define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (SImode, GPR_LINK)
454 /* A C expression whose value is an integer giving the offset, in bytes, from
455 the value of the stack pointer register to the top of the stack frame at the
456 beginning of any function, before the prologue. The top of the frame is
457 defined to be the value of the stack pointer in the previous frame, just
458 before the call instruction.
460 You only need to define this macro if you want to support call frame
461 debugging information like that provided by DWARF 2. */
462 #define INCOMING_FRAME_SP_OFFSET 0
464 #define STACK_POINTER_REGNUM GPR_SP
466 #define FRAME_POINTER_REGNUM GPR_FP
468 /* The register number of the arg pointer register, which is used to
469 access the function's argument list. */
470 #define ARG_POINTER_REGNUM (SPECIAL_REG_FIRST + 0)
472 /* Register numbers used for passing a function's static chain pointer. */
473 #define STATIC_CHAIN_REGNUM 10
475 /* A C expression which is nonzero if a function must have and use a frame
477 #define FRAME_POINTER_REQUIRED 0
479 /* Structure to be filled in by compute_frame_size with register
480 save masks, and offsets for the current function. */
482 struct ms1_frame_info
484 unsigned int total_size; /* # Bytes that the entire frame takes up. */
485 unsigned int pretend_size; /* # Bytes we push and pretend caller did. */
486 unsigned int args_size; /* # Bytes that outgoing arguments take up. */
487 unsigned int extra_size;
488 unsigned int reg_size; /* # Bytes needed to store regs. */
489 unsigned int var_size; /* # Bytes that variables take up. */
490 unsigned int frame_size; /* # Bytes in current frame. */
491 unsigned int reg_mask; /* Mask of saved registers. */
492 unsigned int save_fp; /* Nonzero if frame pointer must be saved. */
493 unsigned int save_lr; /* Nonzero if return pointer must be saved. */
494 int initialized; /* Nonzero if frame size already calculated. */
497 extern struct ms1_frame_info current_frame_info;
499 /* If defined, this macro specifies a table of register pairs used to eliminate
500 unneeded registers that point into the stack frame. */
501 #define ELIMINABLE_REGS \
503 {ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
504 {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
505 {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM} \
508 /* A C expression that returns non-zero if the compiler is allowed to try to
509 replace register number FROM with register number TO. */
510 #define CAN_ELIMINATE(FROM, TO) \
511 ((FROM) == ARG_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM \
512 ? ! frame_pointer_needed \
515 /* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It
516 specifies the initial difference between the specified pair of
517 registers. This macro must be defined if `ELIMINABLE_REGS' is
519 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
520 (OFFSET) = ms1_initial_elimination_offset (FROM, TO)
522 /* If defined, the maximum amount of space required for outgoing
523 arguments will be computed and placed into the variable
524 `current_function_outgoing_args_size'. */
525 #define ACCUMULATE_OUTGOING_ARGS 1
527 /* Define this if it is the responsibility of the caller to
528 allocate the area reserved for arguments passed in registers. */
529 #define OUTGOING_REG_PARM_STACK_SPACE
531 /* The number of register assigned to holding function arguments. */
532 #define MS1_NUM_ARG_REGS 4
534 /* Define this if it is the responsibility of the caller to allocate
535 the area reserved for arguments passed in registers. */
536 #define REG_PARM_STACK_SPACE(FNDECL) (MS1_NUM_ARG_REGS * UNITS_PER_WORD)
538 /* Define this macro if `REG_PARM_STACK_SPACE' is defined, but the stack
539 parameters don't skip the area specified by it. */
540 #define STACK_PARMS_IN_REG_PARM_AREA
542 /* A C expression that should indicate the number of bytes of its own
543 arguments that a function pops on returning, or 0 if the function
544 pops no arguments and the caller must therefore pop them all after
545 the function returns. */
546 #define RETURN_POPS_ARGS(FUNDECL, FUNTYPE, STACK_SIZE) 0
548 #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
549 ms1_function_arg (& (CUM), (MODE), (TYPE), (NAMED), FALSE)
551 #define CUMULATIVE_ARGS int
553 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \
554 ms1_init_cumulative_args (& (CUM), FNTYPE, LIBNAME, FNDECL, FALSE)
556 #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
557 ms1_function_arg_advance (&CUM, MODE, TYPE, NAMED)
559 #define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \
560 ms1_function_arg_boundary (MODE, TYPE)
562 #define FUNCTION_ARG_REGNO_P(REGNO) \
563 ((REGNO) >= FIRST_ARG_REGNUM && ((REGNO) <= LAST_ARG_REGNUM))
565 #define RETURN_VALUE_REGNUM RETVAL_REGNUM
567 #define FUNCTION_VALUE(VALTYPE, FUNC) \
568 ms1_function_value (VALTYPE, TYPE_MODE(VALTYPE), FUNC)
570 #define LIBCALL_VALUE(MODE) \
571 ms1_function_value (NULL_TREE, MODE, NULL_TREE)
573 #define FUNCTION_VALUE_REGNO_P(REGNO) ((REGNO) == RETURN_VALUE_REGNUM)
575 /* A C expression which can inhibit the returning of certain function
576 values in registers, based on the type of value. */
577 #define RETURN_IN_MEMORY(TYPE) (int_size_in_bytes (TYPE) > UNITS_PER_WORD)
579 /* Define this macro to be 1 if all structure and union return values must be
581 #define DEFAULT_PCC_STRUCT_RETURN 0
583 /* Define this macro as a C expression that is nonzero if the return
584 instruction or the function epilogue ignores the value of the stack
585 pointer; in other words, if it is safe to delete an instruction to
586 adjust the stack pointer before a return from the function. */
587 #define EXIT_IGNORE_STACK 1
589 #define EPILOGUE_USES(REGNO) ms1_epilogue_uses(REGNO)
591 /* Define this macro if the function epilogue contains delay slots to which
592 instructions from the rest of the function can be "moved". */
593 #define DELAY_SLOTS_FOR_EPILOGUE 1
595 /* A C expression that returns 1 if INSN can be placed in delay slot number N
597 #define ELIGIBLE_FOR_EPILOGUE_DELAY(INSN, N) 0
599 #define FUNCTION_PROFILER(FILE, LABELNO) gcc_unreachable ()
601 #define EXPAND_BUILTIN_VA_START(VALIST, NEXTARG) \
602 ms1_va_start (VALIST, NEXTARG)
604 /* Trampolines are not implemented. */
605 #define TRAMPOLINE_SIZE 0
607 #define INITIALIZE_TRAMPOLINE(ADDR, FNADDR, STATIC_CHAIN)
609 /* ?? What is this -- aldyh ?? */
610 #define UCMPSI3_LIBCALL "__ucmpsi3"
612 /* Addressing Modes. */
614 /* A C expression that is 1 if the RTX X is a constant which is a valid
616 #define CONSTANT_ADDRESS_P(X) CONSTANT_P (X)
618 /* A number, the maximum number of registers that can appear in a valid memory
619 address. Note that it is up to you to specify a value equal to the maximum
620 number that `GO_IF_LEGITIMATE_ADDRESS' would ever accept. */
621 #define MAX_REGS_PER_ADDRESS 1
624 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \
626 if (ms1_legitimate_address_p (MODE, X, 1)) \
630 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \
632 if (ms1_legitimate_address_p (MODE, X, 0)) \
638 #define REG_OK_FOR_BASE_P(X) ms1_reg_ok_for_base_p (X, 1)
640 #define REG_OK_FOR_BASE_P(X) ms1_reg_ok_for_base_p (X, 0)
643 #define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_BASE_P (X)
645 #define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN) {}
647 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL)
649 #define LEGITIMATE_CONSTANT_P(X) 1
651 /* A C expression for the cost of moving data of mode M between a register and
652 memory. A value of 2 is the default; this cost is relative to those in
653 `REGISTER_MOVE_COST'.
655 If moving between registers and memory is more expensive than between two
656 registers, you should define this macro to express the relative cost. */
657 #define MEMORY_MOVE_COST(M,C,I) 10
659 /* Define this macro as a C expression which is nonzero if accessing less than
660 a word of memory (i.e. a `char' or a `short') is no faster than accessing a
662 #define SLOW_BYTE_ACCESS 1
664 #define SLOW_UNALIGNED_ACCESS(MODE, ALIGN) 1
666 #define TEXT_SECTION_ASM_OP ".text"
668 #define DATA_SECTION_ASM_OP ".data"
670 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
672 /* A C string constant for text to be output before each `asm' statement or
673 group of consecutive ones. Normally this is `"#APP"', which is a comment
674 that has no effect on most assemblers but tells the GNU assembler that it
675 must check the lines that follow for all valid assembler constructs. */
676 #define ASM_APP_ON "#APP\n"
678 /* A C string constant for text to be output after each `asm' statement or
679 group of consecutive ones. Normally this is `"#NO_APP"', which tells the
680 GNU assembler to resume making the time-saving assumptions that are valid
681 for ordinary compiler output. */
682 #define ASM_APP_OFF "#NO_APP\n"
684 /* This is how to output an assembler line defining a `char' constant. */
685 #define ASM_OUTPUT_CHAR(FILE, VALUE) \
688 fprintf (FILE, "\t.byte\t"); \
689 output_addr_const (FILE, (VALUE)); \
690 fprintf (FILE, "\n"); \
694 /* This is how to output an assembler line defining a `short' constant. */
695 #define ASM_OUTPUT_SHORT(FILE, VALUE) \
698 fprintf (FILE, "\t.hword\t"); \
699 output_addr_const (FILE, (VALUE)); \
700 fprintf (FILE, "\n"); \
704 /* This is how to output an assembler line defining an `int' constant.
705 We also handle symbol output here. */
706 #define ASM_OUTPUT_INT(FILE, VALUE) \
709 fprintf (FILE, "\t.word\t"); \
710 output_addr_const (FILE, (VALUE)); \
711 fprintf (FILE, "\n"); \
715 /* A C statement to output to the stdio stream STREAM an assembler instruction
716 to assemble a single byte containing the number VALUE.
718 This declaration must be present. */
719 #define ASM_OUTPUT_BYTE(STREAM, VALUE) \
720 fprintf (STREAM, "\t%s\t0x%x\n", ASM_BYTE_OP, (VALUE))
722 /* Globalizing directive for a label. */
723 #define GLOBAL_ASM_OP "\t.globl "
725 #define REGISTER_NAMES \
726 { "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", \
727 "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15", \
730 /* If defined, a C initializer for an array of structures containing a name and
731 a register number. This macro defines additional names for hard registers,
732 thus allowing the `asm' option in declarations to refer to registers using
734 #define ADDITIONAL_REGISTER_NAMES \
735 { { "FP", 12}, {"SP", 13}, {"RA", 14}, {"IRA", 15} }
737 /* Define this macro if you are using an unusual assembler that requires
738 different names for the machine instructions.
740 The definition is a C statement or statements which output an assembler
741 instruction opcode to the stdio stream STREAM. The macro-operand PTR is a
742 variable of type `char *' which points to the opcode name in its "internal"
743 form--the form that is written in the machine description. The definition
744 should output the opcode name to STREAM, performing any translation you
745 desire, and increment the variable PTR to point at the end of the opcode so
746 that it will not be output twice. */
747 #define ASM_OUTPUT_OPCODE(STREAM, PTR) \
748 (PTR) = ms1_asm_output_opcode (STREAM, PTR)
750 #define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) \
751 ms1_final_prescan_insn (INSN, OPVEC, NOPERANDS)
753 #define PRINT_OPERAND(STREAM, X, CODE) ms1_print_operand (STREAM, X, CODE)
755 /* A C expression which evaluates to true if CODE is a valid punctuation
756 character for use in the `PRINT_OPERAND' macro. */
757 /* #: Print nop for delay slot. */
758 #define PRINT_OPERAND_PUNCT_VALID_P(CODE) ((CODE) == '#')
760 #define PRINT_OPERAND_ADDRESS(STREAM, X) ms1_print_operand_address (STREAM, X)
762 /* If defined, C string expressions to be used for the `%R', `%L', `%U', and
763 `%I' options of `asm_fprintf' (see `final.c'). These are useful when a
764 single `md' file must support multiple assembler formats. In that case, the
765 various `tm.h' files can define these macros differently.
767 USER_LABEL_PREFIX is defined in svr4.h. */
768 #define REGISTER_PREFIX "%"
769 #define LOCAL_LABEL_PREFIX "."
770 #define USER_LABEL_PREFIX ""
771 #define IMMEDIATE_PREFIX ""
773 /* This macro should be provided on machines where the addresses in a dispatch
774 table are relative to the table's own address.
776 The definition should be a C statement to output to the stdio stream STREAM
777 an assembler pseudo-instruction to generate a difference between two labels.
778 VALUE and REL are the numbers of two internal labels. The definitions of
779 these labels are output using `targetm.asm_out.internal_label', and they
780 must be printed in the same way here. */
781 #define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \
782 fprintf (STREAM, "\t.word .L%d-.L%d\n", VALUE, REL)
784 /* This macro should be provided on machines where the addresses in a dispatch
787 The definition should be a C statement to output to the stdio stream STREAM
788 an assembler pseudo-instruction to generate a reference to a label. VALUE
789 is the number of an internal label whose definition is output using
790 `targetm.asm_out.internal_label'. */
791 #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
792 fprintf (STREAM, "\t.word .L%d\n", VALUE)
794 #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (GPR_LINK)
796 #define EH_RETURN_DATA_REGNO(N) \
797 ((N) == 0 ? GPR_R7 : (N) == 1 ? GPR_R8 : INVALID_REGNUM)
799 #define EH_RETURN_STACKADJ_REGNO GPR_R11
800 #define EH_RETURN_STACKADJ_RTX \
801 gen_rtx_REG (SImode, EH_RETURN_STACKADJ_REGNO)
802 #define EH_RETURN_HANDLER_REGNO GPR_R10
803 #define EH_RETURN_HANDLER_RTX \
804 gen_rtx_REG (SImode, EH_RETURN_HANDLER_REGNO)
806 #define ASM_OUTPUT_ALIGN(STREAM, POWER) \
807 fprintf ((STREAM), "\t.p2align %d\n", (POWER))
809 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
811 #ifndef DWARF2_DEBUGGING_INFO
812 #define DWARF2_DEBUGGING_INFO
815 /* Define this macro if GCC should produce dwarf version 2-style
816 line numbers. This usually requires extending the assembler to
817 support them, and #defining DWARF2_LINE_MIN_INSN_LENGTH in the
818 assembler configuration header files. */
819 #define DWARF2_ASM_LINE_DEBUG_INFO 1
821 /* An alias for a machine mode name. This is the machine mode that
822 elements of a jump-table should have. */
823 #define CASE_VECTOR_MODE SImode
825 /* Define this macro if operations between registers with integral
826 mode smaller than a word are always performed on the entire
827 register. Most RISC machines have this property and most CISC
829 #define WORD_REGISTER_OPERATIONS
831 /* The maximum number of bytes that a single instruction can move quickly from
835 /* A C expression which is nonzero if on this machine it is safe to "convert"
836 an integer of INPREC bits to one of OUTPREC bits (where OUTPREC is smaller
837 than INPREC) by merely operating on it as if it had only OUTPREC bits.
839 On many machines, this expression can be 1.
841 When `TRULY_NOOP_TRUNCATION' returns 1 for a pair of sizes for modes for
842 which `MODES_TIEABLE_P' is 0, suboptimal code can result. If this is the
843 case, making `TRULY_NOOP_TRUNCATION' return 0 in such cases may improve
845 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
849 /* An alias for the machine mode used for memory references to functions being
850 called, in `call' RTL expressions. On most machines this should be
852 #define FUNCTION_MODE QImode
854 #define HANDLE_SYSV_PRAGMA 1
856 /* Indicate how many instructions can be issued at the same time. */
859 /* Define the information needed to generate branch and scc insns. This is
860 stored from the compare operation. Note that we can't use "rtx" here
861 since it hasn't been defined! */
863 extern struct rtx_def * ms1_compare_op0;
864 extern struct rtx_def * ms1_compare_op1;