1 /* Definitions of target machine for GNU compiler. System/370 version.
2 Copyright (C) 1989, 1993, 1995 Free Software Foundation, Inc.
3 Contributed by Jan Stein (jan@cd.chalmers.se).
4 Modified for C/370 MVS by Dave Pitts (pitts@mcdata.com)
6 This file is part of GNU CC.
8 GNU CC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GNU CC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU CC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
24 #include <sys/types.h>
29 #define TARGET_VERSION printf (" (370/MVS)");
31 /* Names to predefine in the preprocessor for this target machine. */
33 #define CPP_PREDEFINES "-DGCC -Dgcc -DMVS -Dmvs -Asystem(mvs) -Acpu(i370) -Amachine(i370)"
35 /* Run-time compilation parameters selecting different hardware subsets. */
37 extern int target_flags;
39 /* The sizes of the code and literals on the current page. */
41 extern int mvs_page_code, mvs_page_lit;
43 /* The current page number and the base page number for the function. */
45 extern int mvs_page_num, function_base_page;
47 /* True if a label has been emitted. */
49 extern int mvs_label_emited;
51 /* The name of the current function. */
53 extern char *mvs_function_name;
55 /* The length of the function name malloc'd area. */
57 extern int mvs_function_name_length;
59 /* The amount of space used for outgoing arguments. */
61 extern int current_function_outgoing_args_size;
63 /* Compile using char instructions (mvc, nc, oc, xc). On 4341 use this since
64 these are more than twice as fast as load-op-store.
65 On 3090 don't use this since load-op-store is much faster. */
67 #define TARGET_CHAR_INSTRUCTIONS (target_flags & 1)
69 /* Default target switches */
71 #define TARGET_DEFAULT 1
73 /* Macro to define tables used to set the flags. This is a list in braces
74 of pairs in braces, each pair being { "NAME", VALUE }
75 where VALUE is the bits to set or minus the bits to clear.
76 An empty string NAME is used to identify the default VALUE. */
78 #define TARGET_SWITCHES \
79 { { "char-instructions", 1}, \
80 { "no-char-instructions", -1}, \
81 { "", TARGET_DEFAULT} }
83 /* Target machine storage layout */
85 /* Define this if most significant bit is lowest numbered in instructions
86 that operate on numbered bit-fields. */
88 #define BITS_BIG_ENDIAN 1
90 /* Define this if most significant byte of a word is the lowest numbered. */
92 #define BYTES_BIG_ENDIAN 1
94 /* Define this if MS word of a multiword is the lowest numbered. */
96 #define WORDS_BIG_ENDIAN 1
98 /* Number of bits in an addressable storage unit. */
100 #define BITS_PER_UNIT 8
102 /* Width in bits of a "word", which is the contents of a machine register. */
104 #define BITS_PER_WORD 32
106 /* Width of a word, in units (bytes). */
108 #define UNITS_PER_WORD 4
110 /* Width in bits of a pointer. See also the macro `Pmode' defined below. */
112 #define POINTER_SIZE 32
114 /* Allocation boundary (in *bits*) for storing pointers in memory. */
116 #define POINTER_BOUNDARY 32
118 /* Allocation boundary (in *bits*) for storing arguments in argument list. */
120 #define PARM_BOUNDARY 32
122 /* Boundary (in *bits*) on which stack pointer should be aligned. */
124 #define STACK_BOUNDARY 32
126 /* Allocation boundary (in *bits*) for the code of a function. */
128 #define FUNCTION_BOUNDARY 32
130 /* There is no point aligning anything to a rounder boundary than this. */
132 #define BIGGEST_ALIGNMENT 64
134 /* Alignment of field after `int : 0' in a structure. */
136 #define EMPTY_FIELD_BOUNDARY 32
138 /* Define this if move instructions will actually fail to work when given
141 #define STRICT_ALIGNMENT 0
143 /* Define target floating point format. */
145 #define TARGET_FLOAT_FORMAT IBM_FLOAT_FORMAT
147 /* Define character mapping for cross-compiling. */
149 #define TARGET_EBCDIC 1
152 #define MAP_CHARACTER(c) ((char)(c))
154 #define MAP_CHARACTER(c) ((char)mvs_map_char (c))
157 /* Define maximum length of page minus page escape overhead. */
159 #define MAX_MVS_PAGE_LENGTH 4080
161 /* Define if special allocation order desired. */
163 #define REG_ALLOC_ORDER \
164 { 0, 1, 2, 3, 14, 15, 12, 10, 9, 8, 7, 6, 5, 4, 16, 17, 18, 19, 11, 13 }
166 /* Standard register usage. */
168 /* Number of actual hardware registers. The hardware registers are
169 assigned numbers for the compiler from 0 to just below
170 FIRST_PSEUDO_REGISTER.
171 All registers that the compiler knows about must be given numbers,
172 even those that are not normally considered general registers.
173 For the 370, we give the data registers numbers 0-15,
174 and the floating point registers numbers 16-19. */
176 #define FIRST_PSEUDO_REGISTER 20
178 /* Define base and page registers. */
180 #define BASE_REGISTER 3
181 #define PAGE_REGISTER 4
183 /* 1 for registers that have pervasive standard uses and are not available
184 for the register allocator. On the 370 under C/370, R13 is stack (DSA)
185 pointer, R12 is the TCA pointer, R3 is the base register, R4 is the page
186 origin table pointer and R11 is the arg pointer. */
188 #define FIXED_REGISTERS \
189 { 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0 }
190 /*0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19*/
192 /* 1 for registers not available across function calls. These must include
193 the FIXED_REGISTERS and also any registers that can be used without being
195 The latter must include the registers where values are returned
196 and the register where structure-value addresses are passed.
197 NOTE: all floating registers are undefined across calls. */
199 #define CALL_USED_REGISTERS \
200 { 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 }
201 /*0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19*/
203 /* Return number of consecutive hard regs needed starting at reg REGNO
204 to hold something of mode MODE.
205 This is ordinarily the length in words of a value of mode MODE
206 but can be less for certain modes in special long registers. */
208 #define HARD_REGNO_NREGS(REGNO, MODE) \
209 ((REGNO) > 15 ? 1 : (GET_MODE_SIZE(MODE)+UNITS_PER_WORD-1) / UNITS_PER_WORD)
211 /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
212 On the 370, the cpu registers can hold QI, HI, SI, SF and DF. The
213 even registers can hold DI. The floating point registers can hold
216 #define HARD_REGNO_MODE_OK(REGNO, MODE) \
217 ((REGNO) < 16 ? ((REGNO) & 1) == 0 || (MODE) != DImode \
218 : (MODE) == SFmode || (MODE) == DFmode)
220 /* Value is 1 if it is a good idea to tie two pseudo registers when one has
221 mode MODE1 and one has mode MODE2.
222 If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
223 for any hard reg, then this must be 0 for correct output. */
225 #define MODES_TIEABLE_P(MODE1, MODE2) \
226 (((MODE1) == SFmode || (MODE1) == DFmode) \
227 == ((MODE2) == SFmode || (MODE2) == DFmode))
229 /* Mark external references. */
231 #define ENCODE_SECTION_INFO(decl) \
232 if (DECL_EXTERNAL (decl) && TREE_PUBLIC (decl)) \
233 SYMBOL_REF_FLAG (XEXP (DECL_RTL (decl), 0)) = 1;
235 /* Specify the registers used for certain standard purposes.
236 The values of these macros are register numbers. */
238 /* 370 PC isn't overloaded on a register. */
240 /* #define PC_REGNUM */
242 /* Register to use for pushing function arguments. */
244 #define STACK_POINTER_REGNUM 13
246 /* Base register for access to local variables of the function. */
248 #define FRAME_POINTER_REGNUM 13
250 /* Value should be nonzero if functions must have frame pointers.
251 Zero means the frame pointer need not be set up (and parms may be
252 accessed via the stack pointer) in functions that seem suitable.
253 This is computed in `reload', in reload1.c. */
255 #define FRAME_POINTER_REQUIRED 1
257 /* Base register for access to arguments of the function. */
259 #define ARG_POINTER_REGNUM 11
261 /* Register in which static-chain is passed to a function. */
263 #define STATIC_CHAIN_REGNUM 10
265 /* Register in which address to store a structure value is passed to
268 #define STRUCT_VALUE_REGNUM 1
270 /* Define the classes of registers for register constraints in the
271 machine description. Also define ranges of constants.
273 One of the classes must always be named ALL_REGS and include all hard regs.
274 If there is more than one class, another class must be named NO_REGS
275 and contain no registers.
277 The name GENERAL_REGS must be the name of a class (or an alias for
278 another name such as ALL_REGS). This is the class of registers
279 that is allowed by "g" or "r" in a register constraint.
280 Also, registers outside this class are allocated only when
281 instructions express preferences for them.
283 The classes must be numbered in nondecreasing order; that is,
284 a larger-numbered class must never be contained completely
285 in a smaller-numbered class.
287 For any two classes, it is very desirable that there be another
288 class that represents their union. */
292 NO_REGS, ADDR_REGS, DATA_REGS,
293 FP_REGS, ALL_REGS, LIM_REG_CLASSES
296 #define GENERAL_REGS DATA_REGS
297 #define N_REG_CLASSES (int) LIM_REG_CLASSES
299 /* Give names of register classes as strings for dump file. */
301 #define REG_CLASS_NAMES \
302 { "NO_REGS", "ADDR_REGS", "DATA_REGS", "FP_REGS", "ALL_REGS" }
304 /* Define which registers fit in which classes. This is an initializer for
305 a vector of HARD_REG_SET of length N_REG_CLASSES. */
307 #define REG_CLASS_CONTENTS {0, 0x0fffe, 0x0ffff, 0xf0000, 0xfffff}
309 /* The same information, inverted:
310 Return the class number of the smallest class containing
311 reg number REGNO. This could be a conditional expression
312 or could index an array. */
314 #define REGNO_REG_CLASS(REGNO) \
315 ((REGNO) >= 16 ? FP_REGS : (REGNO) != 0 ? ADDR_REGS : DATA_REGS)
317 /* The class value for index registers, and the one for base regs. */
319 #define INDEX_REG_CLASS ADDR_REGS
320 #define BASE_REG_CLASS ADDR_REGS
322 /* Get reg_class from a letter such as appears in the machine description. */
324 #define REG_CLASS_FROM_LETTER(C) \
325 ((C) == 'a' ? ADDR_REGS : \
326 ((C) == 'd' ? DATA_REGS : \
327 ((C) == 'f' ? FP_REGS : NO_REGS)))
329 /* The letters I, J, K, L and M in a register constraint string can be used
330 to stand for particular ranges of immediate operands.
331 This macro defines what the ranges are.
332 C is the letter, and VALUE is a constant value.
333 Return 1 if VALUE is in the range specified by C. */
335 #define CONST_OK_FOR_LETTER_P(VALUE, C) \
336 ((C) == 'I' ? (unsigned) (VALUE) < 256 : \
337 (C) == 'J' ? (unsigned) (VALUE) < 4096 : \
338 (C) == 'K' ? (VALUE) >= -32768 && (VALUE) < 32768 : 0)
340 /* Similar, but for floating constants, and defining letters G and H.
341 Here VALUE is the CONST_DOUBLE rtx itself. */
343 #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 1
345 /* Given an rtx X being reloaded into a reg required to be in class CLASS,
346 return the class of reg to actually use. In general this is just CLASS;
347 but on some machines in some cases it is preferable to use a more
348 restrictive class. */
350 #define PREFERRED_RELOAD_CLASS(X, CLASS) \
351 (GET_CODE(X) == CONST_DOUBLE ? FP_REGS : \
352 GET_CODE(X) == CONST_INT ? DATA_REGS : \
353 GET_CODE(X) == LABEL_REF || \
354 GET_CODE(X) == SYMBOL_REF || \
355 GET_CODE(X) == CONST ? ADDR_REGS : (CLASS))
357 /* Return the maximum number of consecutive registers needed to represent
358 mode MODE in a register of class CLASS. */
360 #define CLASS_MAX_NREGS(CLASS, MODE) \
361 ((CLASS) == FP_REGS ? 1 : \
362 (GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
364 /* Stack layout; function entry, exit and calling. */
366 /* Define this if pushing a word on the stack makes the stack pointer a
369 /* #define STACK_GROWS_DOWNWARD */
371 /* Define this if the nominal address of the stack frame is at the
372 high-address end of the local variables; that is, each additional local
373 variable allocated goes at a more negative offset in the frame. */
375 /* #define FRAME_GROWS_DOWNWARD */
377 /* Offset within stack frame to start allocating local variables at.
378 If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
379 first local allocated. Otherwise, it is the offset to the BEGINNING
380 of the first local allocated. */
382 #define STARTING_FRAME_OFFSET \
383 (STACK_POINTER_OFFSET + current_function_outgoing_args_size)
385 #define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = STARTING_FRAME_OFFSET
387 /* If we generate an insn to push BYTES bytes, this says how many the stack
388 pointer really advances by. On the 370, we have no push instruction. */
390 /* #define PUSH_ROUNDING(BYTES) */
392 /* Accumulate the outgoing argument count so we can request the right
393 DSA size and determine stack offset. */
395 #define ACCUMULATE_OUTGOING_ARGS
397 /* Define offset from stack pointer, to location where a parm can be
400 #define STACK_POINTER_OFFSET 148
402 /* Offset of first parameter from the argument pointer register value. */
404 #define FIRST_PARM_OFFSET(FNDECL) 0
406 /* 1 if N is a possible register number for function argument passing.
407 On the 370, no registers are used in this way. */
409 #define FUNCTION_ARG_REGNO_P(N) 0
411 /* Define a data type for recording info about an argument list during
412 the scan of that argument list. This data type should hold all
413 necessary information about the function itself and about the args
414 processed so far, enough to enable macros such as FUNCTION_ARG to
415 determine where the next arg should go. */
417 #define CUMULATIVE_ARGS int
419 /* Initialize a variable CUM of type CUMULATIVE_ARGS for a call to
420 a function whose data type is FNTYPE.
421 For a library call, FNTYPE is 0. */
423 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME) ((CUM) = 0)
425 /* Update the data in CUM to advance over an argument of mode MODE and
426 data type TYPE. (TYPE is null for libcalls where that information
427 may not be available.) */
429 #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
430 ((CUM) += ((MODE) == DFmode || (MODE) == SFmode \
432 : (MODE) != BLKmode \
433 ? (GET_MODE_SIZE (MODE) + 3) / 4 \
434 : (int_size_in_bytes (TYPE) + 3) / 4))
436 /* Define where to put the arguments to a function. Value is zero to push
437 the argument on the stack, or a hard register in which to store the
440 #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) 0
442 /* For an arg passed partly in registers and partly in memory, this is the
443 number of registers used. For args passed entirely in registers or
444 entirely in memory, zero. */
446 #define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) 0
448 /* Define if returning from a function call automatically pops the
449 arguments described by the number-of-args field in the call. */
451 #define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0
453 /* Define how to find the value returned by a function. VALTYPE is the
454 data type of the value (as a tree).
455 If the precise function being called is known, FUNC is its FUNCTION_DECL;
456 otherwise, FUNC is 15. */
458 #define RET_REG(MODE) ((MODE) == DFmode || (MODE) == SFmode ? 16 : 15)
460 /* On the 370 the return value is in R15 or R16. */
462 #define FUNCTION_VALUE(VALTYPE, FUNC) \
463 gen_rtx(REG, TYPE_MODE (VALTYPE), RET_REG(TYPE_MODE(VALTYPE)))
465 /* Define how to find the value returned by a library function assuming
466 the value has mode MODE. */
468 #define LIBCALL_VALUE(MODE) gen_rtx(REG, MODE, RET_REG(MODE))
470 /* 1 if N is a possible register number for a function value.
471 On the 370 under C/370, R15 and R16 are thus used. */
473 #define FUNCTION_VALUE_REGNO_P(N) ((N) == 15 || (N) == 16)
475 /* This macro definition sets up a default value for `main' to return. */
477 #define DEFAULT_MAIN_RETURN c_expand_return (integer_zero_node)
479 /* This macro generates the assembly code for function entry.
480 All of the C/370 environment is preserved. */
482 #define FUNCTION_PROLOGUE(FILE, LSIZE) \
484 static int function_label_index = 1; \
485 static int function_first = 0; \
486 static int function_year, function_month, function_day; \
487 static int function_hour, function_minute, function_second; \
489 if (!function_first) \
491 struct tm *function_time; \
494 function_time = localtime (&lcltime); \
495 function_year = function_time->tm_year + 1900; \
496 function_month = function_time->tm_mon + 1; \
497 function_day = function_time->tm_mday; \
498 function_hour = function_time->tm_hour; \
499 function_minute = function_time->tm_min; \
500 function_second = function_time->tm_sec; \
502 fprintf (FILE, "\tUSING\t*,15\n"); \
503 fprintf (FILE, "\tB\tFPL%03d\n", function_label_index); \
504 fprintf (FILE, "\tDC\tAL1(FPL%03d+4-*)\n", function_label_index + 1); \
505 fprintf (FILE, "\tDC\tX'CE',X'A0',X'10'\n"); \
506 fprintf (FILE, "\tDC\tA($PPA2)\n"); \
507 fprintf (FILE, "\tDC\tF'%d'\n", 0); \
508 fprintf (FILE, "\tDC\tF'%d'\n", STACK_POINTER_OFFSET + LSIZE \
509 + current_function_outgoing_args_size); \
510 fprintf (FILE, "FPL%03d\tEQU\t*\n", function_label_index + 1); \
511 fprintf (FILE, "\tDC\tAL2(%d),C'%s'\n", strlen (mvs_function_name), \
512 mvs_function_name); \
513 fprintf (FILE, "\tDS\t0F\n"); \
514 if (!function_first) \
516 fprintf (FILE, "$PPA2\tEQU\t*\n"); \
517 fprintf (FILE, "\tDC\tX'03',X'00',X'33',X'00'\n"); \
518 fprintf (FILE, "\tDC\tV(CEESTART),A(0)\n"); \
519 fprintf (FILE, "\tDC\tA($TIMES)\n"); \
520 fprintf (FILE, "\tDS\t0F\n"); \
521 fprintf (FILE, "$TIMES\tEQU\t*\n"); \
522 fprintf (FILE, "\tDC\tCL4'%d',CL4'%02d%02d',CL6'%02d%02d00'\n", \
523 function_year, function_month, function_day, \
524 function_hour, function_minute, function_second); \
525 fprintf (FILE, "\tDC\tCL2'01',CL4'0100'\n"); \
527 fprintf (FILE, "\tDS\t0H\n"); \
528 fprintf (FILE, "FPL%03d\tEQU\t*\n", function_label_index); \
529 fprintf (FILE, "\tSTM\t14,12,12(13)\n"); \
530 fprintf (FILE, "\tL\t2,76(,13)\n"); \
531 fprintf (FILE, "\tL\t0,16(,15)\n"); \
532 fprintf (FILE, "\tALR\t0,2\n"); \
533 fprintf (FILE, "\tCL\t0,12(,12)\n"); \
534 fprintf (FILE, "\tBNH\t*+10\n"); \
535 fprintf (FILE, "\tL\t15,116(,12)\n"); \
536 fprintf (FILE, "\tBALR\t14,15\n"); \
537 fprintf (FILE, "\tL\t15,72(,13)\n"); \
538 fprintf (FILE, "\tSTM\t15,0,72(2)\n"); \
539 fprintf (FILE, "\tMVI\t0(2),X'10'\n"); \
540 fprintf (FILE, "\tST\t13,4(,2)\n "); \
541 fprintf (FILE, "\tLR\t13,2\n"); \
542 fprintf (FILE, "\tLR\t11,1\n"); \
543 fprintf (FILE, "\tDROP\t15\n"); \
544 fprintf (FILE, "\tBALR\t%d,0\n", BASE_REGISTER); \
545 fprintf (FILE, "PG%d\tEQU\t*\n", mvs_page_num ); \
546 fprintf (FILE, "\tUSING\t*,%d\n", BASE_REGISTER); \
547 fprintf (FILE, "\tL\t%d,=A(PGT%d)\n", PAGE_REGISTER, mvs_page_num); \
550 mvs_check_page (FILE, 0, 0); \
551 function_base_page = mvs_page_num; \
552 function_first = 1; \
553 function_label_index += 2; \
556 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
558 if (strlen (NAME) * 2 > mvs_function_name_length) \
560 if (mvs_function_name) \
561 free (mvs_function_name); \
562 mvs_function_name = 0; \
564 if (!mvs_function_name) \
566 mvs_function_name_length = strlen (NAME) * 2; \
567 mvs_function_name = (char *) malloc (mvs_function_name_length); \
568 if (mvs_function_name == 0) \
570 fatal ("virtual memory exceeded"); \
574 if (!strcmp (NAME, "main")) \
575 strcpy (mvs_function_name, "gccmain"); \
577 strcpy (mvs_function_name, NAME); \
578 fprintf (FILE, "\tDS\t0H\n"); \
579 assemble_name (FILE, mvs_function_name); \
580 fputs ("\tCSECT\n", FILE); \
583 /* This macro generates the assembly code for function exit, on machines
584 that need it. If FUNCTION_EPILOGUE is not defined then individual
585 return instructions are generated for each return statement. Args are
586 same as for FUNCTION_PROLOGUE.
588 The function epilogue should not depend on the current stack pointer!
589 It should use the frame pointer only. This is mandatory because
590 of alloca; we also take advantage of it to omit stack adjustments
593 #define FUNCTION_EPILOGUE(FILE, LSIZE) \
596 check_label_emit(); \
597 mvs_check_page (FILE,14,0); \
598 fprintf (FILE, "\tL\t13,4(,13)\n"); \
599 fprintf (FILE, "\tL\t14,12(,13)\n"); \
600 fprintf (FILE, "\tLM\t2,12,28(13)\n"); \
601 fprintf (FILE, "\tBALR\t1,14\n"); \
602 fprintf (FILE, "\tDC\tA("); \
604 assemble_name (FILE, mvs_function_name); \
605 fprintf (FILE, ")\n" ); \
606 fprintf (FILE, "\tDS\t0F\n" ); \
607 fprintf (FILE, "\tLTORG\n"); \
608 fprintf (FILE, "\tDS\t0F\n"); \
609 fprintf (FILE, "PGT%d\tEQU\t*\n", function_base_page); \
611 for ( i = function_base_page; i < mvs_page_num; i++ ) \
612 fprintf (FILE, "\tDC\tA(PG%d)\n", i); \
615 /* Output assembler code for a block containing the constant parts of a
616 trampoline, leaving space for the variable parts.
618 On the 370, the trampoline contains these instructions:
622 L STATIC_CHAIN_REGISTER,X
628 #define TRAMPOLINE_TEMPLATE(FILE) \
630 ASM_OUTPUT_SHORT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x05E0)); \
631 ASM_OUTPUT_SHORT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x5800 | \
632 STATIC_CHAIN_REGNUM << 4)); \
633 ASM_OUTPUT_SHORT (FILE, gen_rtx (CONST_INT, VOIDmode, 0xE00A)); \
634 ASM_OUTPUT_SHORT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x58F0)); \
635 ASM_OUTPUT_SHORT (FILE, gen_rtx (CONST_INT, VOIDmode, 0xE00E)); \
636 ASM_OUTPUT_SHORT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x07FF)); \
637 ASM_OUTPUT_SHORT (FILE, const0_rtx); \
638 ASM_OUTPUT_SHORT (FILE, const0_rtx); \
639 ASM_OUTPUT_SHORT (FILE, const0_rtx); \
640 ASM_OUTPUT_SHORT (FILE, const0_rtx); \
643 /* Length in units of the trampoline for entering a nested function. */
645 #define TRAMPOLINE_SIZE 20
647 /* Emit RTL insns to initialize the variable parts of a trampoline. */
649 #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \
651 emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 12)), CXT); \
652 emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 16)), FNADDR); \
655 /* Output assembler code to FILE to increment profiler label # LABELNO
656 for profiling a function entry. */
658 #define FUNCTION_PROFILER(FILE, LABELNO) \
659 fprintf (FILE, "Error: No profiling available.\n")
661 /* Define EXIT_IGNORE_STACK if, when returning from a function, the stack
662 pointer does not matter (provided there is a frame pointer). */
664 #define EXIT_IGNORE_STACK 1
666 /* Addressing modes, and classification of registers for them. */
668 /* #define HAVE_POST_INCREMENT */
669 /* #define HAVE_POST_DECREMENT */
671 /* #define HAVE_PRE_DECREMENT */
672 /* #define HAVE_PRE_INCREMENT */
674 /* These assume that REGNO is a hard or pseudo reg number. They give
675 nonzero only if REGNO is a hard reg of the suitable class or a pseudo
676 reg currently allocated to a suitable hard reg.
677 These definitions are NOT overridden anywhere. */
679 #define REGNO_OK_FOR_INDEX_P(REGNO) \
680 (((REGNO) > 0 && (REGNO) < 16) \
681 || (reg_renumber[REGNO] > 0 && reg_renumber[REGNO] < 16))
683 #define REGNO_OK_FOR_BASE_P(REGNO) REGNO_OK_FOR_INDEX_P(REGNO)
685 #define REGNO_OK_FOR_DATA_P(REGNO) \
686 ((REGNO) < 16 || (unsigned) reg_renumber[REGNO] < 16)
688 #define REGNO_OK_FOR_FP_P(REGNO) \
689 ((unsigned) ((REGNO) - 16) < 4 || (unsigned) (reg_renumber[REGNO] - 16) < 4)
691 /* Now macros that check whether X is a register and also,
692 strictly, whether it is in a specified class. */
694 /* 1 if X is a data register. */
696 #define DATA_REG_P(X) (REG_P (X) && REGNO_OK_FOR_DATA_P (REGNO (X)))
698 /* 1 if X is an fp register. */
700 #define FP_REG_P(X) (REG_P (X) && REGNO_OK_FOR_FP_P (REGNO (X)))
702 /* 1 if X is an address register. */
704 #define ADDRESS_REG_P(X) (REG_P (X) && REGNO_OK_FOR_BASE_P (REGNO (X)))
706 /* Maximum number of registers that can appear in a valid memory address. */
708 #define MAX_REGS_PER_ADDRESS 2
710 /* Recognize any constant value that is a valid address. */
712 #define CONSTANT_ADDRESS_P(X) \
713 (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \
714 || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST_DOUBLE \
715 || (GET_CODE (X) == CONST \
716 && GET_CODE (XEXP (XEXP (X, 0), 0)) == LABEL_REF) \
717 || (GET_CODE (X) == CONST \
718 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF \
719 && !SYMBOL_REF_FLAG (XEXP (XEXP (X, 0), 0))))
721 /* Nonzero if the constant value X is a legitimate general operand.
722 It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */
724 #define LEGITIMATE_CONSTANT_P(X) 1
726 /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx and check
727 its validity for a certain class. We have two alternate definitions
728 for each of them. The usual definition accepts all pseudo regs; the
729 other rejects them all. The symbol REG_OK_STRICT causes the latter
730 definition to be used.
732 Most source files want to accept pseudo regs in the hope that they will
733 get allocated to the class that the insn wants them to be in.
734 Some source files that are used after register allocation
735 need to be strict. */
737 #ifndef REG_OK_STRICT
739 /* Nonzero if X is a hard reg that can be used as an index or if it is
742 #define REG_OK_FOR_INDEX_P(X) \
743 ((REGNO(X) > 0 && REGNO(X) < 16) || REGNO(X) >= 20)
745 /* Nonzero if X is a hard reg that can be used as a base reg or if it is
748 #define REG_OK_FOR_BASE_P(X) REG_OK_FOR_INDEX_P(X)
750 #else /* REG_OK_STRICT */
752 /* Nonzero if X is a hard reg that can be used as an index. */
754 #define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P(REGNO(X))
756 /* Nonzero if X is a hard reg that can be used as a base reg. */
758 #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P(REGNO(X))
760 #endif /* REG_OK_STRICT */
762 /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression that is a
763 valid memory address for an instruction.
764 The MODE argument is the machine mode for the MEM expression
765 that wants to use this address.
767 The other macros defined here are used only in GO_IF_LEGITIMATE_ADDRESS,
768 except for CONSTANT_ADDRESS_P which is actually machine-independent. */
770 #define COUNT_REGS(X, REGS, FAIL) \
771 if (REG_P (X) && REG_OK_FOR_BASE_P (X)) \
773 else if (GET_CODE (X) != CONST_INT || (unsigned) INTVAL (X) >= 4096) \
776 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \
778 if (REG_P (X) && REG_OK_FOR_BASE_P (X)) \
780 if (GET_CODE (X) == PLUS) \
783 rtx x0 = XEXP (X, 0); \
784 rtx x1 = XEXP (X, 1); \
785 if (GET_CODE (x0) == PLUS) \
787 COUNT_REGS (XEXP (x0, 0), regs, FAIL); \
788 COUNT_REGS (XEXP (x0, 1), regs, FAIL); \
789 COUNT_REGS (x1, regs, FAIL); \
793 else if (GET_CODE (x1) == PLUS) \
795 COUNT_REGS (x0, regs, FAIL); \
796 COUNT_REGS (XEXP (x1, 0), regs, FAIL); \
797 COUNT_REGS (XEXP (x1, 1), regs, FAIL); \
803 COUNT_REGS (x0, regs, FAIL); \
804 COUNT_REGS (x1, regs, FAIL); \
812 /* The 370 has no mode dependent addresses. */
814 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL)
816 /* Try machine-dependent ways of modifying an illegitimate address
817 to be legitimate. If we find one, return the new, valid address.
818 This macro is used in only one place: `memory_address' in explow.c. */
820 #define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN) \
822 if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \
823 (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \
824 copy_to_mode_reg (SImode, XEXP (X, 1))); \
825 if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \
826 (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \
827 copy_to_mode_reg (SImode, XEXP (X, 0))); \
828 if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT) \
829 (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \
830 force_operand (XEXP (X, 0), 0)); \
831 if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT) \
832 (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \
833 force_operand (XEXP (X, 1), 0)); \
834 if (memory_address_p (MODE, X)) \
838 /* Specify the machine mode that this machine uses for the index in the
839 tablejump instruction. */
841 #define CASE_VECTOR_MODE SImode
843 /* Define this if the tablejump instruction expects the table to contain
844 offsets from the address of the table.
845 Do not define this if the table should contain absolute addresses. */
847 /* #define CASE_VECTOR_PC_RELATIVE */
849 /* Specify the tree operation to be used to convert reals to integers. */
851 #define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR
853 /* Define this if fixuns_trunc is the same as fix_trunc. */
855 #define FIXUNS_TRUNC_LIKE_FIX_TRUNC
857 /* We use "unsigned char" as default. */
859 #define DEFAULT_SIGNED_CHAR 0
861 /* This is the kind of divide that is easiest to do in the general case. */
863 #define EASY_DIV_EXPR TRUNC_DIV_EXPR
865 /* Max number of bytes we can move from memory to memory in one reasonably
870 /* Define this if zero-extension is slow (more than one real instruction). */
872 #define SLOW_ZERO_EXTEND
874 /* Nonzero if access to memory by bytes is slow and undesirable. */
876 #define SLOW_BYTE_ACCESS 1
878 /* Define if shifts truncate the shift count which implies one can omit
879 a sign-extension or zero-extension of a shift count. */
881 /* #define SHIFT_COUNT_TRUNCATED */
883 /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
884 is done just by pretending it is already truncated. */
886 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) (OUTPREC != 16)
888 /* We assume that the store-condition-codes instructions store 0 for false
889 and some other value for true. This is the value stored for true. */
891 /* #define STORE_FLAG_VALUE -1 */
893 /* When a prototype says `char' or `short', really pass an `int'. */
895 #define PROMOTE_PROTOTYPES
897 /* Don't perform CSE on function addresses. */
899 #define NO_FUNCTION_CSE
901 /* Specify the machine mode that pointers have.
902 After generation of rtl, the compiler makes no further distinction
903 between pointers and any other objects of this machine mode. */
907 /* A function address in a call instruction is a byte address (for
908 indexing purposes) so give the MEM rtx a byte's mode. */
910 #define FUNCTION_MODE QImode
912 /* Compute the cost of computing a constant rtl expression RTX whose
913 rtx-code is CODE. The body of this macro is a portion of a switch
914 statement. If the code is computed here, return it with a return
915 statement. Otherwise, break from the switch. */
917 #define CONST_COSTS(RTX, CODE, OUTERCODE) \
919 if ((unsigned) INTVAL (RTX) < 0xfff) return 1; \
927 /* Tell final.c how to eliminate redundant test instructions. */
929 /* Here we define machine-dependent flags and fields in cc_status
930 (see `conditions.h'). */
932 /* Store in cc_status the expressions that the condition codes will
933 describe after execution of an instruction whose pattern is EXP.
934 Do not alter them if the instruction would not alter the cc's.
936 On the 370, load insns do not alter the cc's. However, in some
937 cases these instructions can make it possibly invalid to use the
938 saved cc's. In those cases we clear out some or all of the saved
939 cc's so they won't be used. */
941 #define NOTICE_UPDATE_CC(EXP, INSN) \
944 if (GET_CODE (exp) == PARALLEL) /* Check this */ \
945 exp = XVECEXP (exp, 0, 0); \
946 if (GET_CODE (exp) != SET) \
950 if (XEXP (exp, 0) == cc0_rtx) \
952 cc_status.value1 = XEXP (exp, 0); \
953 cc_status.value2 = XEXP (exp, 1); \
954 cc_status.flags = 0; \
958 if (cc_status.value1 \
959 && reg_mentioned_p (XEXP (exp, 0), cc_status.value1)) \
960 cc_status.value1 = 0; \
961 if (cc_status.value2 \
962 && reg_mentioned_p (XEXP (exp, 0), cc_status.value2)) \
963 cc_status.value2 = 0; \
964 switch (GET_CODE (XEXP (exp, 1))) \
966 case PLUS: case MINUS: case MULT: /* case UMULT: */ \
967 case DIV: case UDIV: case NEG: case ASHIFT: \
968 case ASHIFTRT: case AND: case IOR: case XOR: \
969 case ABS: case NOT: \
970 CC_STATUS_SET (XEXP (exp, 0), XEXP (exp, 1)); \
977 #define CC_STATUS_SET(V1, V2) \
979 cc_status.flags = 0; \
980 cc_status.value1 = (V1); \
981 cc_status.value2 = (V2); \
982 if (cc_status.value1 \
983 && reg_mentioned_p (cc_status.value1, cc_status.value2)) \
984 cc_status.value2 = 0; \
987 #define OUTPUT_JUMP(NORMAL, FLOAT, NO_OV) \
988 { if (cc_status.flags & CC_NO_OVERFLOW) return NO_OV; return NORMAL; }
990 /* Control the assembler format that we output. */
992 #define TEXT_SECTION_ASM_OP "* Program text area"
993 #define DATA_SECTION_ASM_OP "* Program data area"
994 #define INIT_SECTION_ASM_OP "* Program initialization area"
995 #define CTOR_LIST_BEGIN /* NO OP */
996 #define CTOR_LIST_END /* NO OP */
998 /* How to refer to registers in assembler output. This sequence is
999 indexed by compiler's hard-register-number (see above). */
1001 #define REGISTER_NAMES \
1002 { "0", "1", "2", "3", "4", "5", "6", "7", \
1003 "8", "9", "10", "11", "12", "13", "14", "15", \
1004 "0", "2", "4", "6" \
1007 /* How to renumber registers for dbx and gdb. */
1009 #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
1011 #define ASM_FILE_START(FILE) fputs ("\tCSECT\n", FILE);
1012 #define ASM_FILE_END(FILE) fputs ("\tEND\n", FILE);
1013 #define ASM_IDENTIFY_GCC(FILE)
1014 #define ASM_COMMENT_START "*"
1015 #define ASM_APP_OFF ""
1016 #define ASM_APP_ON ""
1018 #define ASM_OUTPUT_LABEL(FILE, NAME) \
1019 { assemble_name (FILE, NAME); fputs ("\tEQU\t*\n", FILE); }
1021 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) /* NO OP */
1023 #define ASM_GLOBALIZE_LABEL(FILE, NAME) \
1024 { fputs ("\tENTRY\t", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE); }
1026 /* MVS externals are limited to 8 characters, upper case only.
1027 The '_' is mapped to '@', except for MVS functions, then '#'. */
1029 #define MAX_MVS_LABEL_SIZE 8
1031 #define ASM_OUTPUT_LABELREF(FILE, NAME) \
1033 char *bp, ch, temp[MAX_MVS_LABEL_SIZE + 1]; \
1034 if (strlen (NAME) > MAX_MVS_LABEL_SIZE) \
1036 strncpy (temp, NAME, MAX_MVS_LABEL_SIZE); \
1037 temp[MAX_MVS_LABEL_SIZE] = '\0'; \
1040 strcpy (temp,NAME); \
1041 if (!strcmp (temp,"main")) \
1042 strcpy (temp,"gccmain"); \
1043 if (mvs_function_check (temp)) \
1047 for (bp = temp; *bp; bp++) \
1049 if (islower (*bp)) *bp = toupper (*bp); \
1050 if (*bp == '_') *bp = ch; \
1052 fprintf (FILE, "%s", temp); \
1055 #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \
1056 sprintf (LABEL, "*%s%d", PREFIX, NUM)
1058 /* Generate internal label. Since we can branch here from off page, we
1059 must reload the base register. */
1061 #define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \
1063 if (!strcmp (PREFIX,"L")) \
1065 mvs_add_label(NUM); \
1066 mvs_label_emited = 1; \
1068 fprintf (FILE, "%s%d\tEQU\t*\n", PREFIX, NUM); \
1071 /* Generate case label. */
1073 #define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, TABLE) \
1074 fprintf (FILE, "%s%d\tEQU\t*\n", PREFIX, NUM)
1076 /* This is how to output an element of a case-vector that is absolute. */
1078 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
1079 mvs_check_page (FILE, 4, 0); \
1080 fprintf (FILE, "\tDC\tA(L%d)\n", VALUE)
1082 /* This is how to output an element of a case-vector that is relative. */
1084 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
1085 mvs_check_page (FILE, 4, 0); \
1086 fprintf (FILE, "\tDC\tA(L%d-L%d)\n", VALUE, REL)
1088 /* This is how to output an insn to push a register on the stack.
1089 It need not be very fast code. */
1091 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \
1092 mvs_check_page (FILE, 8, 4); \
1093 fprintf (FILE, "\tS\t13,=F'4'\n\tST\t%s,%d(13)\n", \
1094 reg_names[REGNO], STACK_POINTER_OFFSET)
1096 /* This is how to output an insn to pop a register from the stack.
1097 It need not be very fast code. */
1099 #define ASM_OUTPUT_REG_POP(FILE, REGNO) \
1100 mvs_check_page (FILE, 8, 0); \
1101 fprintf (FILE, "\tL\t%s,%d(13)\n\tLA\t13,4(13)\n", \
1102 reg_names[REGNO], STACK_POINTER_OFFSET)
1104 /* This is how to output an assembler line defining a `double' constant. */
1106 #define ASM_OUTPUT_DOUBLE(FILE, VALUE) \
1107 fprintf (FILE, "\tDC\tD'%.18G'\n", (VALUE))
1109 /* This is how to output an assembler line defining a `float' constant. */
1111 #define ASM_OUTPUT_FLOAT(FILE, VALUE) \
1112 fprintf (FILE, "\tDC\tE'%.9G'\n", (VALUE))
1114 /* This outputs an integer, if not a CONST_INT must be address constant. */
1116 #define ASM_OUTPUT_INT(FILE, EXP) \
1118 if (GET_CODE (EXP) == CONST_INT) \
1120 fprintf (FILE, "\tDC\tF'"); \
1121 output_addr_const (FILE, EXP); \
1122 fprintf (FILE, "'\n"); \
1126 fprintf (FILE, "\tDC\tA("); \
1127 output_addr_const (FILE, EXP); \
1128 fprintf (FILE, ")\n"); \
1132 /* This outputs a short integer. */
1134 #define ASM_OUTPUT_SHORT(FILE, EXP) \
1136 fprintf (FILE, "\tDC\tH'"); \
1137 output_addr_const (FILE, EXP); \
1138 fprintf (FILE, "'\n"); \
1141 /* This outputs a byte sized integer. */
1143 #define ASM_OUTPUT_CHAR(FILE, EXP) \
1144 fprintf (FILE, "\tDC\tX'%02X'\n", INTVAL (EXP) )
1146 #define ASM_OUTPUT_BYTE(FILE, VALUE) \
1147 fprintf (FILE, "\tDC\tX'%02X'\n", VALUE)
1149 /* This outputs a text string. The string are chopped up to fit into
1150 an 80 byte record. Also, control and special characters, interpreted
1151 by the IBM assembler, are output numerically. */
1153 #define MVS_ASCII_TEXT_LENGTH 48
1155 #define ASM_OUTPUT_ASCII(FILE, PTR, LEN) \
1159 for (j = 0, i = 0; i < LEN; j++, i++) \
1162 if (iscntrl (c) || c == '&') \
1164 if (j % MVS_ASCII_TEXT_LENGTH != 0 ) \
1165 fprintf (FILE, "'\n"); \
1167 if (c == '&') c = MAP_CHARACTER (c); \
1168 fprintf (FILE, "\tDC\tX'%X'\n", c ); \
1172 if (j % MVS_ASCII_TEXT_LENGTH == 0) \
1173 fprintf (FILE, "\tDC\tC'", c); \
1175 fprintf (FILE, "%c%c", c, c); \
1177 fprintf (FILE, "%c", c); \
1178 if (j % MVS_ASCII_TEXT_LENGTH == MVS_ASCII_TEXT_LENGTH - 1) \
1179 fprintf (FILE, "'\n" ); \
1182 if (j % MVS_ASCII_TEXT_LENGTH != 0) \
1183 fprintf (FILE, "'\n"); \
1186 /* This is how to output an assembler line that says to advance the
1187 location counter to a multiple of 2**LOG bytes. */
1189 #define ASM_OUTPUT_ALIGN(FILE, LOG) \
1193 fprintf (FILE, "\tDS\t0H\n" ); \
1195 fprintf (FILE, "\tDS\t0F\n" ); \
1198 /* The maximum length of memory that the IBM assembler will allow in one
1201 #define MAX_CHUNK 32767
1203 /* A C statement to output to the stdio stream FILE an assembler
1204 instruction to advance the location counter by SIZE bytes. Those
1205 bytes should be zero when loaded. */
1207 #define ASM_OUTPUT_SKIP(FILE, SIZE) \
1210 for (s = (SIZE); s > 0; s -= MAX_CHUNK) \
1212 if (s > MAX_CHUNK) \
1216 fprintf (FILE, "\tDS\tXL%d\n", k); \
1220 /* A C statement (sans semicolon) to output to the stdio stream
1221 FILE the assembler definition of a common-label named NAME whose
1222 size is SIZE bytes. The variable ROUNDED is the size rounded up
1223 to whatever alignment the caller wants. */
1225 #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
1227 fputs ("\tENTRY\t", FILE); \
1228 assemble_name (FILE, NAME); \
1229 fputs ("\n", FILE); \
1230 fprintf (FILE, "\tDS\t0F\n"); \
1231 ASM_OUTPUT_LABEL (FILE,NAME); \
1232 ASM_OUTPUT_SKIP (FILE,SIZE); \
1235 /* A C statement (sans semicolon) to output to the stdio stream
1236 FILE the assembler definition of a local-common-label named NAME
1237 whose size is SIZE bytes. The variable ROUNDED is the size
1238 rounded up to whatever alignment the caller wants. */
1240 #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
1242 fprintf (FILE, "\tDS\t0F\n"); \
1243 ASM_OUTPUT_LABEL (FILE,NAME); \
1244 ASM_OUTPUT_SKIP (FILE,SIZE); \
1247 /* Store in OUTPUT a string (made with alloca) containing an
1248 assembler-name for a local static variable named NAME.
1249 LABELNO is an integer which is different for each call. */
1251 #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
1253 (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10); \
1254 sprintf ((OUTPUT), "%s%d", (NAME), (LABELNO)); \
1257 /* Define the parentheses used to group arithmetic operations
1258 in assembler code. */
1260 #define ASM_OPEN_PAREN "("
1261 #define ASM_CLOSE_PAREN ")"
1263 /* Define results of standard character escape sequences. */
1265 #define TARGET_BELL 47
1266 #define TARGET_BS 22
1267 #define TARGET_TAB 5
1268 #define TARGET_NEWLINE 21
1269 #define TARGET_VT 11
1270 #define TARGET_FF 12
1271 #define TARGET_CR 13
1273 /* Print operand X (an rtx) in assembler syntax to file FILE.
1274 CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified.
1275 For `%' followed by punctuation, CODE is the punctuation and X is null. */
1277 #define PRINT_OPERAND(FILE, X, CODE) \
1279 switch (GET_CODE (X)) \
1281 static char curreg[4]; \
1284 strcpy (curreg, reg_names[REGNO (X) + 1]); \
1286 strcpy (curreg, reg_names[REGNO (X)]); \
1287 fprintf (FILE, "%s", curreg); \
1291 rtx addr = XEXP (X, 0); \
1294 if (GET_CODE (addr) == PLUS) \
1295 fprintf (FILE, "%d", INTVAL (XEXP (addr, 1))); \
1297 fprintf (FILE, "0"); \
1299 else if (CODE == 'R') \
1301 if (GET_CODE (addr) == PLUS) \
1302 fprintf (FILE, "%s", reg_names[REGNO (XEXP (addr, 0))]);\
1304 fprintf (FILE, "%s", reg_names[REGNO (addr)]); \
1307 output_address (XEXP (X, 0)); \
1312 mvs_page_lit += 4; \
1313 if (SYMBOL_REF_FLAG (X)) fprintf (FILE, "=V("); \
1314 else fprintf (FILE, "=A("); \
1315 output_addr_const (FILE, X); \
1316 fprintf (FILE, ")"); \
1320 fprintf (FILE, "%d", INTVAL (X) & 0xff); \
1321 else if (CODE == 'X') \
1322 fprintf (FILE, "%02X", INTVAL (X) & 0xff); \
1323 else if (CODE == 'h') \
1324 fprintf (FILE, "%d", (INTVAL (X) << 16) >> 16); \
1325 else if (CODE == 'H') \
1327 mvs_page_lit += 4; \
1328 fprintf (FILE, "=F'%d'", (INTVAL (X) << 16) >> 16); \
1332 mvs_page_lit += 4; \
1333 fprintf (FILE, "=F'%d'", INTVAL (X)); \
1336 case CONST_DOUBLE: \
1337 if (GET_MODE (X) == DImode) \
1341 mvs_page_lit += 4; \
1342 fprintf (FILE, "=XL4'%08X'", CONST_DOUBLE_LOW (X)); \
1344 else if (CODE == 'L') \
1346 mvs_page_lit += 4; \
1347 fprintf (FILE, "=XL4'%08X'", CONST_DOUBLE_HIGH (X)); \
1351 mvs_page_lit += 8; \
1352 fprintf (FILE, "=XL8'%08X%08X'", CONST_DOUBLE_LOW (X), \
1353 CONST_DOUBLE_HIGH (X)); \
1358 union { double d; int i[2]; } u; \
1359 u.i[0] = CONST_DOUBLE_LOW (X); \
1360 u.i[1] = CONST_DOUBLE_HIGH (X); \
1361 if (GET_MODE (X) == SFmode) \
1363 mvs_page_lit += 4; \
1364 fprintf (FILE, "=E'%.9G'", u.d); \
1368 mvs_page_lit += 8; \
1369 fprintf (FILE, "=D'%.18G'", u.d); \
1374 if (GET_CODE (XEXP (X, 0)) == PLUS \
1375 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
1377 mvs_page_lit += 4; \
1378 if (SYMBOL_REF_FLAG (XEXP (XEXP (X, 0), 0))) \
1380 fprintf (FILE, "=V("); \
1381 ASM_OUTPUT_LABELREF (FILE, \
1382 XSTR (XEXP (XEXP (X, 0), 0), 0)); \
1383 fprintf (FILE, ")\n\tA\t%s,=F'%d'", curreg, \
1384 INTVAL (XEXP (XEXP (X, 0), 1))); \
1388 fprintf (FILE, "=A("); \
1389 output_addr_const (FILE, X); \
1390 fprintf (FILE, ")"); \
1395 mvs_page_lit += 4; \
1396 fprintf (FILE, "=F'"); \
1397 output_addr_const (FILE, X); \
1398 fprintf (FILE, "'"); \
1406 #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \
1408 rtx breg, xreg, offset, plus; \
1410 switch (GET_CODE (ADDR)) \
1413 fprintf (FILE, "0(%s)", reg_names[REGNO (ADDR)]); \
1419 if (GET_CODE (XEXP (ADDR, 0)) == PLUS) \
1421 if (GET_CODE (XEXP (ADDR, 1)) == REG) \
1422 breg = XEXP (ADDR, 1); \
1424 offset = XEXP (ADDR, 1); \
1425 plus = XEXP (ADDR, 0); \
1429 if (GET_CODE (XEXP (ADDR, 0)) == REG) \
1430 breg = XEXP (ADDR, 0); \
1432 offset = XEXP (ADDR, 0); \
1433 plus = XEXP (ADDR, 1); \
1435 if (GET_CODE (plus) == PLUS) \
1437 if (GET_CODE (XEXP (plus, 0)) == REG) \
1440 xreg = XEXP (plus, 0); \
1442 breg = XEXP (plus, 0); \
1446 offset = XEXP (plus, 0); \
1448 if (GET_CODE (XEXP (plus, 1)) == REG) \
1451 xreg = XEXP (plus, 1); \
1453 breg = XEXP (plus, 1); \
1457 offset = XEXP (plus, 1); \
1460 else if (GET_CODE (plus) == REG) \
1473 if (GET_CODE (offset) == LABEL_REF) \
1474 fprintf (FILE, "L%d", \
1475 CODE_LABEL_NUMBER (XEXP (offset, 0))); \
1477 output_addr_const (FILE, offset); \
1480 fprintf (FILE, "0"); \
1482 fprintf (FILE, "(%s,%s)", \
1483 reg_names[REGNO (xreg)], reg_names[REGNO (breg)]); \
1485 fprintf (FILE, "(%s)", reg_names[REGNO (breg)]); \
1488 mvs_page_lit += 4; \
1489 if (SYMBOL_REF_FLAG (ADDR)) fprintf (FILE, "=V("); \
1490 else fprintf (FILE, "=A("); \
1491 output_addr_const (FILE, ADDR); \
1492 fprintf (FILE, ")"); \