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Diffstat (limited to 'gnu/usr.bin/gcc/config/i370/mvs370.c')
-rw-r--r--gnu/usr.bin/gcc/config/i370/mvs370.c482
1 files changed, 0 insertions, 482 deletions
diff --git a/gnu/usr.bin/gcc/config/i370/mvs370.c b/gnu/usr.bin/gcc/config/i370/mvs370.c
deleted file mode 100644
index 6f59c5c4ffd..00000000000
--- a/gnu/usr.bin/gcc/config/i370/mvs370.c
+++ /dev/null
@@ -1,482 +0,0 @@
-/* Subroutines for insn-output.c for System/370.
- Copyright (C) 1989, 1993, 1995 Free Software Foundation, Inc.
- Contributed by Jan Stein (jan@cd.chalmers.se).
- Modified for MVS C/370 by Dave Pitts (dpitts@nyx.cs.du.edu)
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include "config.h"
-#include "rtl.h"
-#include "regs.h"
-#include "hard-reg-set.h"
-#include "real.h"
-#include "insn-config.h"
-#include "conditions.h"
-#include "insn-flags.h"
-#include "output.h"
-#include "insn-attr.h"
-#include "flags.h"
-#include "recog.h"
-
-
-/* Label node, this structure is used to keep track of labels on the
- current page. */
-typedef struct label_node
- {
- struct label_node *label_next;
- int label_id;
- int label_page;
- }
-label_node_t;
-
-/* Is 1 when a label has been generated and the base register must be
- reloaded. */
-int mvs_label_emitted = 0;
-
-/* Current function starting base page. */
-int function_base_page;
-
-/* Length of the current page code. */
-int mvs_page_code;
-
-/* Length of the current page literals. */
-int mvs_page_lit;
-
-/* Current function name. */
-char *mvs_function_name = 0;
-
-/* Current function name length. */
-int mvs_function_name_length = 0;
-
-/* Page number for multi-page functions. */
-int mvs_page_num = 0;
-
-/* Label node list anchor. */
-static label_node_t *label_anchor = 0;
-
-/* Label node free list anchor. */
-static label_node_t *free_anchor = 0;
-
-/* Assembler source file descriptor. */
-static FILE *assembler_source = 0;
-
-/* Define the length of the internal MVS function table. */
-#define MVS_FUNCTION_TABLE_LENGTH 32
-
-/* C/370 internal function table. These functions use non-standard linkage
- and must handled in a special manner. */
-static char *mvs_function_table[MVS_FUNCTION_TABLE_LENGTH] =
-{
- "ceil", "edc_acos", "edc_asin", "edc_ata2", "edc_atan", "edc_cos",
- "edc_cosh", "edc_erf", "edc_erfc", "edc_exp", "edc_gamm", "edc_lg10",
- "edc_log", "edc_sin", "edc_sinh", "edc_sqrt", "edc_tan", "edc_tanh",
- "fabs", "floor", "fmod", "frexp", "hypot", "j0",
- "j1", "jn", "ldexp", "modf", "pow", "y0",
- "y1", "yn"
-};
-
-/* ASCII to EBCDIC conversion table. */
-#if defined(TARGET_EBCDIC) && !defined(HOST_EBCDIC)
-static unsigned char ascebc[256] =
-{
- /*00 NL SH SX EX ET NQ AK BL */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
- /*08 BS HT LF VT FF CR SO SI */
- 0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- /*10 DL D1 D2 D3 D4 NK SN EB */
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26,
- /*18 CN EM SB EC FS GS RS US */
- 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- /*20 SP ! " # $ % & ' */
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
- /*28 ( ) * + , - . / */
- 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- /*30 0 1 2 3 4 5 6 7 */
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
- /*38 8 9 : ; < = > ? */
- 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- /*40 @ A B C D E F G */
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
- /*48 H I J K L M N O */
- 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- /*50 P Q R S T U V W */
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
- /*58 X Y Z [ \ ] ^ _ */
- 0xE7, 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
- /*60 ` a b c d e f g */
- 0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
- /*68 h i j k l m n o */
- 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- /*70 p q r s t u v w */
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
- /*78 x y z { | } ~ DL */
- 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0xFF
-};
-#endif
-
-/* EBCDIC to ASCII conversion table. */
-#if defined(HOST_EBCDIC) && !defined(TARGET_EBCDIC)
-unsigned char ebcasc[256] =
-{
- /*00 NU SH SX EX PF HT LC DL */
- 0x00, 0x01, 0x02, 0x03, 0x00, 0x09, 0x00, 0x7F,
- /*08 SM VT FF CR SO SI */
- 0x00, 0x00, 0x00, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- /*10 DE D1 D2 TM RS NL BS IL */
- 0x10, 0x11, 0x12, 0x13, 0x14, 0x0A, 0x08, 0x00,
- /*18 CN EM CC C1 FS GS RS US */
- 0x18, 0x19, 0x00, 0x00, 0x1C, 0x1D, 0x1E, 0x1F,
- /*20 DS SS FS BP LF EB EC */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x17, 0x1B,
- /*28 SM C2 EQ AK BL */
- 0x00, 0x00, 0x00, 0x00, 0x05, 0x06, 0x07, 0x00,
- /*30 SY PN RS UC ET */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
- /*38 C3 D4 NK SU */
- 0x00, 0x00, 0x00, 0x00, 0x14, 0x15, 0x00, 0x1A,
- /*40 SP */
- 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*48 . < ( + | */
- 0x00, 0x00, 0x00, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- /*50 & */
- 0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*58 ! $ * ) ; ^ */
- 0x00, 0x00, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
- /*60 - / */
- 0x2D, 0x2F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*68 , % _ > ? */
- 0x00, 0x00, 0x00, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- /*70 */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*78 ` : # @ ' = " */
- 0x00, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- /*80 a b c d e f g */
- 0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
- /*88 h i { */
- 0x68, 0x69, 0x00, 0x7B, 0x00, 0x00, 0x00, 0x00,
- /*90 j k l m n o p */
- 0x00, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
- /*98 q r } */
- 0x71, 0x72, 0x00, 0x7D, 0x00, 0x00, 0x00, 0x00,
- /*A0 ~ s t u v w x */
- 0x00, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
- /*A8 y z [ */
- 0x79, 0x7A, 0x00, 0x00, 0x00, 0x5B, 0x00, 0x00,
- /*B0 */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*B8 ] */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x5D, 0x00, 0x00,
- /*C0 { A B C D E F G */
- 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
- /*C8 H I */
- 0x48, 0x49, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*D0 } J K L M N O P */
- 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
- /*D8 Q R */
- 0x51, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*E0 \ S T U V W X */
- 0x5C, 0x00, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
- /*E8 Y Z */
- 0x59, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*F0 0 1 2 3 4 5 6 7 */
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
- /*F8 8 9 */
- 0x38, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF
-};
-#endif
-
-/* Map characters from one character set to another.
- C is the character to be translated. */
-
-char
-mvs_map_char (c)
- char c;
-{
-#if defined(TARGET_EBCDIC) && !defined(HOST_EBCDIC)
- return ascebc[c];
-#else
-#if defined(HOST_EBCDIC) && !defined(TARGET_EBCDIC)
- return ebcasc[c];
-#else
- return c;
-#endif
-#endif
-}
-
-/* Emit reload of base register if indicated. This is to eliminate multiple
- reloads when several labels are generated pointing to the same place
- in the code. */
-
-int
-check_label_emit (void)
-{
- if (mvs_label_emitted)
- {
- mvs_label_emitted = 0;
- mvs_page_code += 4;
- fprintf (assembler_source, "\tL\t%d,%d(,%d)\n",
- BASE_REGISTER, (mvs_page_num - function_base_page) * 4,
- PAGE_REGISTER);
- }
-}
-
-/* Add the label to the current page label list. If a free element is available
- it will be used for the new label. Otherwise, a label element will be
- allocated from memory.
- ID is the label number of the label being added to the list. */
-
-int
-mvs_add_label (id)
- int id;
-{
- label_node_t *lp;
-
- if (free_anchor)
- {
- lp = free_anchor;
- free_anchor = lp->label_next;
- }
- else
- {
- lp = (label_node_t *) malloc (sizeof (label_node_t));
- if (lp == 0)
- {
- fatal ("virtual memory exhausted\n");
- abort ();
- }
- }
- lp->label_id = id;
- lp->label_page = mvs_page_num;
- lp->label_next = label_anchor;
- label_anchor = lp;
-}
-
-/* Check to see if the label is in the list. If 1 is returned then a load
- and branch on register must be generated.
- ID is the label number of the label being checked. */
-
-int
-mvs_check_label (id)
- int id;
-{
- label_node_t *lp;
-
- for (lp = label_anchor; lp; lp = lp->label_next)
- {
- if (lp->label_id == id)
- return 1;
- }
- return 0;
-}
-
-/* The label list for the current page freed by linking the list onto the free
- label element chain. */
-
-int
-mvs_free_label (void)
-{
- if (label_anchor)
- {
- if (free_anchor)
- label_anchor->label_next = free_anchor;
- free_anchor = label_anchor;
- }
- label_anchor = 0;
-}
-
-/* If the page size limit is reached a new code page is started, and the base
- register is set to it. This page break point is counted conservatively,
- most literals that have the same value are collapsed by the assembler.
- True is returned when a new page is started.
- FILE is the assembler output file descriptor.
- CODE is the length, in bytes, of the instruction to be emitted.
- LIT is the length of the literal to be emitted. */
-
-int
-mvs_check_page (file, code, lit)
- FILE *file;
- int code, lit;
-{
- if (file)
- assembler_source = file;
-
- if (mvs_page_code + code + mvs_page_lit + lit > MAX_MVS_PAGE_LENGTH)
- {
- fprintf (assembler_source, "\tB\tPGE%d\n", mvs_page_num);
- fprintf (assembler_source, "\tDS\t0F\n");
- fprintf (assembler_source, "\tLTORG\n");
- fprintf (assembler_source, "\tDS\t0F\n");
- fprintf (assembler_source, "PGE%d\tEQU\t*\n", mvs_page_num);
- fprintf (assembler_source, "\tDROP\t%d\n", BASE_REGISTER);
- mvs_page_num++;
- fprintf (assembler_source, "\tBALR\t%d,0\n", BASE_REGISTER);
- fprintf (assembler_source, "PG%d\tEQU\t*\n", mvs_page_num);
- fprintf (assembler_source, "\tUSING\t*,%d\n", BASE_REGISTER);
- mvs_free_label ();
- mvs_page_code = code;
- mvs_page_lit = lit;
- return 1;
- }
- mvs_page_code += code;
- mvs_page_lit += lit;
- return 0;
-}
-
-/* Check for C/370 runtime function, they don't use standard calling
- conventions. True is returned if the function is in the table.
- NAME is the name of the current function. */
-
-int
-mvs_function_check (name)
- char *name;
-{
- int lower, middle, upper;
- int i;
-
- lower = 0;
- upper = MVS_FUNCTION_TABLE_LENGTH - 1;
- while (lower <= upper)
- {
- middle = (lower + upper) / 2;
- i = strcmp (name, mvs_function_table[middle]);
- if (i == 0)
- return 1;
- if (i < 0)
- upper = middle - 1;
- else
- lower = middle + 1;
- }
- return 0;
-}
-
-
-/* Return 1 if OP is a valid S operand for an RS, SI or SS type instruction.
- OP is the current operation.
- MODE is the current operation mode. */
-
-int
-s_operand (op, mode)
- register rtx op;
- enum machine_mode mode;
-{
- extern int volatile_ok;
- register enum rtx_code code = GET_CODE (op);
-
- if (CONSTANT_ADDRESS_P (op))
- return 1;
- if (mode == VOIDmode || GET_MODE (op) != mode)
- return 0;
- if (code == MEM)
- {
- register rtx x = XEXP (op, 0);
-
- if (!volatile_ok && op->volatil)
- return 0;
- if (REG_P (x) && REG_OK_FOR_BASE_P (x))
- return 1;
- if (GET_CODE (x) == PLUS
- && REG_P (XEXP (x, 0)) && REG_OK_FOR_BASE_P (XEXP (x, 0))
- && GET_CODE (XEXP (x, 1)) == CONST_INT
- && (unsigned) INTVAL (XEXP (x, 1)) < 4096)
- return 1;
- }
- return 0;
-}
-
-
-/* Return 1 if OP is a valid R or S operand for an RS, SI or SS type
- instruction.
- OP is the current operation.
- MODE is the current operation mode. */
-
-int
-r_or_s_operand (op, mode)
- register rtx op;
- enum machine_mode mode;
-{
- extern int volatile_ok;
- register enum rtx_code code = GET_CODE (op);
-
- if (CONSTANT_ADDRESS_P (op))
- return 1;
- if (mode == VOIDmode || GET_MODE (op) != mode)
- return 0;
- if (code == REG)
- return 1;
- else if (code == MEM)
- {
- register rtx x = XEXP (op, 0);
-
- if (!volatile_ok && op->volatil)
- return 0;
- if (REG_P (x) && REG_OK_FOR_BASE_P (x))
- return 1;
- if (GET_CODE (x) == PLUS
- && REG_P (XEXP (x, 0)) && REG_OK_FOR_BASE_P (XEXP (x, 0))
- && GET_CODE (XEXP (x, 1)) == CONST_INT
- && (unsigned) INTVAL (XEXP (x, 1)) < 4096)
- return 1;
- }
- return 0;
-}
-
-
-/* Return 1 if the next instruction is an unsigned jump instruction.
- INSN is the current instruction. */
-
-unsigned_jump_follows_p (insn)
- register rtx insn;
-{
- insn = NEXT_INSN (insn);
- if (GET_CODE (insn) != JUMP_INSN)
- return 0;
-
- insn = XEXP (insn, 3);
- if (GET_CODE (insn) != SET)
- return 0;
-
- if (GET_CODE (XEXP (insn, 0)) != PC)
- return 0;
-
- insn = XEXP (insn, 1);
- if (GET_CODE (insn) != IF_THEN_ELSE)
- return 0;
-
- insn = XEXP (insn, 0);
- return GET_CODE (insn) != GE && GET_CODE (insn) != GT
- && GET_CODE (insn) != LE && GET_CODE (insn) != LT;
-}
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