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- /* Target definitions for GNU compiler for Intel 80860 running OSF/1AD
- Copyright (C) 1991 Free Software Foundation, Inc.
-
- Based upon original work of Ron Guilmette (rfg@ncd.com).
- Whacked into submission by Andy Pfiffer (andyp@ssd.intel.com).
- Partially inspired by
- Pete Beckman @ Indiana University (beckman@cs.indiana.edu)
- Harry Dolan of Intel Corporation (dolan@ssd.intel.com)
-
- 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "i860/i860.h"
- #include "svr3.h"
-
- /* For the sake of libgcc2.c, indicate target supports atexit. */
- #define HAVE_ATEXIT
-
- #undef TARGET_SWITCHES
- #define TARGET_SWITCHES \
- { {"xp", 1}, \
- {"noxp", -1}, \
- {"xr", -1}, \
- {"noieee", -1}, \
- {"nx", 2}, \
- { "", TARGET_DEFAULT}}
-
- #undef TARGET_DEFAULT
- #define TARGET_DEFAULT 1
-
- /* The Intel as860 assembler does not understand .stabs, must use COFF */
- #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
-
- #undef TARGET_VERSION
- #define TARGET_VERSION fprintf (stderr, " (i860 OSF/1AD)");
-
- #undef CPP_PREDEFINES
- #define CPP_PREDEFINES "-Di860 -D__i860 -D__i860__ -D__PARAGON__ -D__OSF1__ -D_COFF -Dunix -DMACH -DCMU"
-
- #define CPP_SPEC "%{mnx:-D__NODE}"
-
- /* autoinit.o autolaunches NX applications */
- #define STARTFILE_SPEC "-ycrt0.o%s %{mnx:-yoptions/autoinit.o%s}"
-
- /* libic.a is the PGI intrisic library */
- /* libpm.o and guard.o are for the performance monitoring modules (ignored) */
- /* /usr/lib/noieee contains non-IEEE compliant (but faster) math routines */
- #if HAVE_DASH_G
- #define LIB_SPEC "%{mnoieee:-L/usr/lib/noieee} -L/usr/lib %{mnx:-lnx -lmach} %
- {g*:-lg} -lc -lic"
- #else /* HAVE_DASH_G */
- /* can't use -g for -lg; libg.a doesn't have a symbol table and ld complains */
- #define LIB_SPEC "%{mnoieee:-L/usr/lib/noieee} -L/usr/lib %{mnx:-lnx -lmach} -lc -lic"
- #endif /* HAVE_DASH_G */
-
- /* Get rid of definition from svr3.h. */
- #undef SIZE_TYPE
-
- #undef I860_REG_PREFIX
-
- #undef ASM_COMMENT_START
- #define ASM_COMMENT_START "//"
-
- #undef TYPE_OPERAND_FMT
- #define TYPE_OPERAND_FMT "\"%s\""
-
- #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
-
- #undef ASCII_DATA_ASM_OP
- #define ASCII_DATA_ASM_OP ".byte"
-
- /*
- * the assembler we're using doesn't grok .ident...
- */
- #undef ASM_OUTPUT_IDENT
- #define ASM_OUTPUT_IDENT(FILE, NAME) \
- fprintf (FILE, "//\t.ident \"%s\"\n", NAME);
-
- /*
- * the assembler doesn't grok .double INF and the like
- * but does understand .long with hex numbers, so special
- * case the "symbolic" IEEE numbers.
- */
- #undef ASM_OUTPUT_DOUBLE
- #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
- { \
- if (REAL_VALUE_ISINF (VALUE) \
- || REAL_VALUE_ISNAN (VALUE) \
- || REAL_VALUE_MINUS_ZERO (VALUE)) \
- { \
- long t[2]; \
- REAL_VALUE_TO_TARGET_DOUBLE ((VALUE), t); \
- fprintf (FILE, "\t.long 0x%lx\n\t.long 0x%lx\n", t[0], t[1]); \
- } \
- else \
- fprintf (FILE, "\t.double %.20e\n", VALUE); \
- }
-
- #undef ASM_OUTPUT_FLOAT
- #define ASM_OUTPUT_FLOAT(FILE,VALUE) \
- { \
- if (REAL_VALUE_ISINF (VALUE) \
- || REAL_VALUE_ISNAN (VALUE) \
- || REAL_VALUE_MINUS_ZERO (VALUE)) \
- { \
- long t; \
- REAL_VALUE_TO_TARGET_SINGLE ((VALUE), t); \
- fprintf (FILE, "\t.long 0x%lx\n", t); \
- } \
- else \
- fprintf (FILE, "\t.float %.12e\n", VALUE); \
- }
-
- #undef ASM_OUTPUT_ASCII
- #define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
- do \
- { \
- register unsigned char *str = (unsigned char *) (STR); \
- register unsigned char *limit = str + (LENGTH); \
- register unsigned bytes_in_chunk = 0; \
- for (; str < limit; str++) \
- { \
- register unsigned ch = *str; \
- if (ch < 32 || ch == '\\' || ch == '"' || ch >= 127) \
- { \
- if (bytes_in_chunk > 0) \
- { \
- fprintf ((FILE), "\"\n"); \
- bytes_in_chunk = 0; \
- } \
- fprintf ((FILE), "\t%s\t%d\n", ASM_BYTE_OP, ch); \
- } \
- else \
- { \
- if (bytes_in_chunk >= 60) \
- { \
- fprintf ((FILE), "\"\n"); \
- bytes_in_chunk = 0; \
- } \
- if (bytes_in_chunk == 0) \
- fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP);\
- putc (ch, (FILE)); \
- bytes_in_chunk++; \
- } \
- } \
- if (bytes_in_chunk > 0) \
- fprintf ((FILE), "\"\n"); \
- } \
- while (0)
-
-
- /* This says how to output an assembler line
- to define a local common symbol. */
-
- #undef ASM_OUTPUT_LOCAL
- #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
- ( fputs (".lcomm ", (FILE)), \
- assemble_name ((FILE), (NAME)), \
- fprintf ((FILE), ",%u\n", (ROUNDED)))
-
- /*
- * not defining ASM_STABS_OP yields .stabs in the .s file
- * when using g++ -- so, I'll define it.
- */
- #define ASM_STABS_OP "//.stabs"
-
- /* Define this macro if an argument declared as `char' or `short' in a
- prototype should actually be passed as an `int'. In addition to
- avoiding errors in certain cases of mismatch, it also makes for
- better code on certain machines. */
- /*#define PROMOTE_PROTOTYPES*/
-
- /* Define this macro if an instruction to load a value narrower
- than a word from memory into a register also zero-extends the
- value to the whole register. */
- /*#define BYTE_LOADS_ZERO_EXTEND*/
-
- /* Define this macro as a C expression which is nonzero if
- accessing less than a word of memory (i.e. a `char' or a
- `short') is no faster than accessing a word of memory, i.e., if
- such access require more than one instruction or if there is no
- difference in cost between byte and (aligned) word loads.
-
- On RISC machines, it tends to generate better code to define
- this as 1, since it avoids making a QI or HI mode register. */
- /*
- #undef SLOW_BYTE_ACCESS
- #define SLOW_BYTE_ACCESS 1
- */
-
- /* Define if shifts truncate the shift count
- which implies one can omit a sign-extension or zero-extension
- of a shift count. */
- #define SHIFT_COUNT_TRUNCATED 1
-
-
- #define FASTEST_ALIGNMENT 32
-
- /* Make strings word-aligned so strcpy from constants will be faster. */
- #define CONSTANT_ALIGNMENT(EXP, ALIGN) \
- (TREE_CODE (EXP) == STRING_CST \
- && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN))
-
- /* Make arrays of chars word-aligned for the same reasons. */
- #define DATA_ALIGNMENT(TYPE, ALIGN) \
- (TREE_CODE (TYPE) == ARRAY_TYPE \
- && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \
- && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN))
-
- /*
- * disable a few things picked up from svr3.h
- */
- #undef INIT_SECTION_ASM_OP
- #undef FINI_SECTION_ASM_OP
- #undef CONST_SECTION_ASM_OP
- #undef CTORS_SECTION_ASM_OP
- #undef DTORS_SECTION_ASM_OP
- #undef DO_GLOBAL_CTORS_BODY
- #undef ASM_OUTPUT_DESTRUCTOR
- #undef SELECT_SECTION
- #undef SELECT_RTX_SECTION
- #undef READONLY_DATA_SECTION
-
- #define BSS_SECTION_ASM_OP ".bss" /* XXX */
- #undef EXTRA_SECTIONS
- #define EXTRA_SECTIONS in_bss
- #undef EXTRA_SECTION_FUNCTIONS
- #define EXTRA_SECTION_FUNCTIONS \
- BSS_SECTION_FUNCTION
-