Richard Stallman
parent
edc03e8aa2
commit
ad08247592
|
|
@ -0,0 +1,389 @@
|
|||
/* Subroutines for insn-output.c for Clipper
|
||||
Copyright (C) 1987, 1988, 1991 Free Software Foundation, Inc.
|
||||
|
||||
Contributed by Holger Teutsch (holger@hotbso.rhein-main.de)
|
||||
|
||||
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 <stdio.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 "tree.h"
|
||||
#include "c-tree.h"
|
||||
#include "expr.h"
|
||||
#include "flags.h"
|
||||
#include "machmode.h"
|
||||
|
||||
extern char regs_ever_live[];
|
||||
|
||||
#ifdef ACCUMULATE_OUTGOING_ARGS
|
||||
extern int current_function_outgoing_args_size;
|
||||
#endif
|
||||
|
||||
static int save_reg_offset;
|
||||
|
||||
/*
|
||||
* prologue and epilogue output
|
||||
* function is entered with pc pushed, i.e. stack is 32 bit alligned
|
||||
*
|
||||
*/
|
||||
void
|
||||
output_function_prologue (file, lsize)
|
||||
FILE *file;
|
||||
int lsize; /* size for locals */
|
||||
{
|
||||
int i, offset;
|
||||
int save_size;
|
||||
int size; /* total size of frame */
|
||||
|
||||
save_size = 0; /* compute size for reg saves */
|
||||
for (i = 17; i < 32; i++)
|
||||
if (regs_ever_live[i] && !call_used_regs[i])
|
||||
save_size += 8;
|
||||
|
||||
for (i = 0; i < 16; i++)
|
||||
if (regs_ever_live[i] && !call_used_regs[i])
|
||||
save_size += 4;
|
||||
|
||||
save_reg_offset = lsize + save_size;
|
||||
|
||||
save_reg_offset = (save_reg_offset + 7) & ~7; /* align to 64 Bit */
|
||||
|
||||
#ifdef ACCUMULATE_OUTGOING_ARGS
|
||||
size = save_reg_offset + current_function_outgoing_args_size;
|
||||
#else
|
||||
size = save_reg_offset;
|
||||
#endif
|
||||
|
||||
size = (size + 7) & ~7; /* align to 64 Bit */
|
||||
|
||||
if (size == 0)
|
||||
{
|
||||
fputs ("\tpushw fp,sp\n", file);
|
||||
fputs ("\tmovw sp,fp\n", file);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (size < 16)
|
||||
fprintf (file, "\tsubq $%d,sp\n", size + 4); /* room for fp */
|
||||
else
|
||||
fprintf (file, "\tsubi $%d,sp\n", size + 4);
|
||||
|
||||
fprintf (file, "\tstorw fp,%d(sp)\n", size);
|
||||
fprintf (file, "\tloada %d(sp),fp\n", size);
|
||||
}
|
||||
|
||||
offset = -save_reg_offset;
|
||||
|
||||
for (i = 16; i < 32; i++)
|
||||
if (regs_ever_live[i] && !call_used_regs[i])
|
||||
{
|
||||
fprintf (file, "\tstord f%d,%d(fp)\n", i-16, offset);
|
||||
offset += 8;
|
||||
}
|
||||
|
||||
for (i = 0; i < 16; i++)
|
||||
if (regs_ever_live[i] && !call_used_regs[i])
|
||||
{
|
||||
fprintf (file, "\tstorw r%d,%d(fp)\n", i, offset);
|
||||
offset += 4;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
output_function_epilogue (file, size)
|
||||
FILE *file;
|
||||
int size; /* ignored */
|
||||
{
|
||||
int i, offset;
|
||||
|
||||
offset = -save_reg_offset;
|
||||
|
||||
for (i = 16; i < 32; i++)
|
||||
if (regs_ever_live[i] && !call_used_regs[i])
|
||||
{
|
||||
fprintf (file, "\tloadd %d(fp),f%d\n", offset, i-16);
|
||||
offset += 8;
|
||||
}
|
||||
|
||||
for (i = 0; i < 16; i++)
|
||||
if (regs_ever_live[i] && !call_used_regs[i])
|
||||
{
|
||||
fprintf (file, "\tloadw %d(fp),r%d\n", offset, i);
|
||||
offset += 4;
|
||||
}
|
||||
|
||||
fputs ("\tmovw fp,sp\n\tpopw sp,fp\n\tret sp\n",
|
||||
file);
|
||||
}
|
||||
|
||||
/*
|
||||
* blockmove
|
||||
*
|
||||
* clipper_movstr ()
|
||||
*/
|
||||
void
|
||||
clipper_movstr (operands)
|
||||
rtx *operands;
|
||||
{
|
||||
rtx dst,src,cnt,tmp,top,bottom,xops[3];
|
||||
int align;
|
||||
int fixed;
|
||||
|
||||
extern FILE *asm_out_file;
|
||||
|
||||
dst = operands[0];
|
||||
src = operands[1];
|
||||
/* don't change this operands[2]; gcc 2.3.3 doesn't honor clobber note */
|
||||
align = INTVAL (operands[3]);
|
||||
tmp = operands[4];
|
||||
cnt = operands[5];
|
||||
|
||||
if (GET_CODE (operands[2]) == CONST_INT) /* fixed size move */
|
||||
{
|
||||
if ((fixed = INTVAL (operands[2])) <= 0)
|
||||
abort ();
|
||||
|
||||
if (fixed <16)
|
||||
output_asm_insn ("loadq %2,%5", operands);
|
||||
else
|
||||
output_asm_insn ("loadi %2,%5", operands);
|
||||
}
|
||||
else
|
||||
{
|
||||
fixed = 0;
|
||||
bottom = (rtx)gen_label_rtx (); /* need a bottom label */
|
||||
xops[0] = cnt; xops[1] = bottom;
|
||||
output_asm_insn ("movw %2,%5", operands); /* count is scratch reg 5 */
|
||||
output_asm_insn ("brle %l1", xops);
|
||||
}
|
||||
|
||||
|
||||
top = (rtx)gen_label_rtx (); /* top of loop label */
|
||||
ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L", CODE_LABEL_NUMBER (top));
|
||||
|
||||
|
||||
xops[0] = src; xops[1] = tmp; xops[2] = dst;
|
||||
|
||||
if (fixed && (align & 0x3) == 0) /* word aligned move with known size */
|
||||
{
|
||||
if (fixed >= 4)
|
||||
{
|
||||
rtx xops1[2];
|
||||
output_asm_insn(
|
||||
"loadw %a0,%1\n\taddq $4,%0\n\tstorw %1,%a2\n\taddq $4,%2",
|
||||
xops);
|
||||
|
||||
xops1[0] = cnt; xops1[1] = top;
|
||||
output_asm_insn ("subq $4,%0\n\tbrgt %l1", xops1);
|
||||
}
|
||||
|
||||
if (fixed & 0x2)
|
||||
{
|
||||
output_asm_insn ("loadh %a0,%1\n\tstorh %1,%a2", xops);
|
||||
if (fixed & 0x1)
|
||||
output_asm_insn ("loadb 2%a0,%1\n\tstorb %1,2%a2", xops);
|
||||
}
|
||||
else
|
||||
if (fixed & 0x1)
|
||||
output_asm_insn ("loadb %a0,%1\n\tstorb %1,%a2", xops);
|
||||
}
|
||||
else
|
||||
{
|
||||
output_asm_insn(
|
||||
"loadb %a0,%1\n\taddq $1,%0\n\tstorb %1,%a2\n\taddq $1,%2",
|
||||
xops);
|
||||
|
||||
xops[0] = cnt; xops[1] = top;
|
||||
output_asm_insn ("subq $1,%0\n\tbrgt %l1", xops);
|
||||
}
|
||||
|
||||
if (fixed == 0)
|
||||
ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L", CODE_LABEL_NUMBER (bottom));
|
||||
}
|
||||
|
||||
|
||||
print_operand_address (file, addr)
|
||||
FILE *file;
|
||||
register rtx addr;
|
||||
{
|
||||
rtx op0,op1;
|
||||
|
||||
retry:
|
||||
switch (GET_CODE (addr))
|
||||
{
|
||||
case REG:
|
||||
fprintf (file, "(%s)", reg_names[REGNO (addr)]);
|
||||
break;
|
||||
|
||||
case PLUS:
|
||||
/* can be 'symbol + reg' or 'reg + reg' */
|
||||
|
||||
op0 = XEXP (addr, 0);
|
||||
op1 = XEXP (addr, 1);
|
||||
|
||||
if (GET_CODE (op0) == REG && GET_CODE (op1) == REG)
|
||||
{
|
||||
fprintf (file, "[%s](%s)",
|
||||
reg_names[REGNO (op0)], reg_names[REGNO (op1)]);
|
||||
break;
|
||||
}
|
||||
|
||||
if (GET_CODE (op0) == REG && CONSTANT_ADDRESS_P (op1))
|
||||
{
|
||||
output_addr_const (file, op1);
|
||||
fprintf (file, "(%s)", reg_names[REGNO (op0)]);
|
||||
break;
|
||||
}
|
||||
|
||||
if (GET_CODE (op1) == REG && CONSTANT_ADDRESS_P (op0))
|
||||
{
|
||||
output_addr_const (file, op0);
|
||||
fprintf (file, "(%s)", reg_names[REGNO (op1)]);
|
||||
break;
|
||||
}
|
||||
abort (); /* Oh no */
|
||||
|
||||
default:
|
||||
output_addr_const (file, addr);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
char *
|
||||
rev_cond_name (op)
|
||||
rtx op;
|
||||
{
|
||||
switch (GET_CODE (op))
|
||||
{
|
||||
case EQ:
|
||||
return "ne";
|
||||
case NE:
|
||||
return "eq";
|
||||
case LT:
|
||||
return "ge";
|
||||
case LE:
|
||||
return "gt";
|
||||
case GT:
|
||||
return "le";
|
||||
case GE:
|
||||
return "lt";
|
||||
case LTU:
|
||||
return "geu";
|
||||
case LEU:
|
||||
return "gtu";
|
||||
case GTU:
|
||||
return "leu";
|
||||
case GEU:
|
||||
return "ltu";
|
||||
|
||||
default:
|
||||
abort ();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Do what is necessary for `va_start'. The argument is ignored;
|
||||
We look at the current function to determine if stdargs or varargs
|
||||
is used and fill in an initial va_list. A pointer to this constructor
|
||||
is returned. */
|
||||
|
||||
struct rtx_def *
|
||||
clipper_builtin_saveregs (arglist)
|
||||
tree arglist;
|
||||
{
|
||||
extern int current_function_varargs;
|
||||
rtx block, addr, argsize;
|
||||
/* Allocate the va_list constructor */
|
||||
block = assign_stack_local (BLKmode, 8 * UNITS_PER_WORD, 2 * BITS_PER_WORD);
|
||||
RTX_UNCHANGING_P (block) = 1;
|
||||
RTX_UNCHANGING_P (XEXP (block, 0)) = 1;
|
||||
|
||||
addr = copy_to_reg (XEXP (block, 0));
|
||||
|
||||
/* Store float regs */
|
||||
|
||||
emit_move_insn (gen_rtx (MEM, DFmode, addr),
|
||||
gen_rtx (REG, DFmode, 16));
|
||||
|
||||
emit_move_insn (gen_rtx (MEM, DFmode,
|
||||
gen_rtx (PLUS, Pmode, addr,
|
||||
gen_rtx (CONST_INT, Pmode, 8))),
|
||||
gen_rtx (REG, DFmode, 17));
|
||||
|
||||
/* Store int regs */
|
||||
|
||||
emit_move_insn (gen_rtx (MEM, SImode,
|
||||
gen_rtx (PLUS, Pmode, addr,
|
||||
gen_rtx (CONST_INT, Pmode, 16))),
|
||||
gen_rtx (REG, SImode, 0));
|
||||
|
||||
emit_move_insn (gen_rtx (MEM, SImode,
|
||||
gen_rtx (PLUS, Pmode, addr,
|
||||
gen_rtx (CONST_INT, Pmode, 20))),
|
||||
gen_rtx (REG, SImode, 1));
|
||||
|
||||
|
||||
/* Store the arg pointer in the __va_stk member. */
|
||||
|
||||
emit_move_insn (gen_rtx (MEM, SImode,
|
||||
gen_rtx (PLUS, Pmode, addr,
|
||||
gen_rtx (CONST_INT, Pmode, 24))),
|
||||
copy_to_reg (virtual_incoming_args_rtx));
|
||||
|
||||
|
||||
/* Return the address of the va_list constructor, but don't put it in a
|
||||
register. This fails when not optimizing and produces worse code when
|
||||
optimizing. */
|
||||
return XEXP (block, 0);
|
||||
}
|
||||
|
||||
|
||||
/* Return truth value of whether OP can be used as an word register
|
||||
operand. Reject (SUBREG:SI (REG:SF )) */
|
||||
|
||||
int
|
||||
int_reg_operand (op, mode)
|
||||
rtx op;
|
||||
enum machine_mode mode;
|
||||
{
|
||||
return (register_operand (op, mode) &&
|
||||
(GET_CODE (op) != SUBREG ||
|
||||
GET_MODE_CLASS (GET_MODE (SUBREG_REG (op))) == MODE_INT));
|
||||
}
|
||||
|
||||
/* Return truth value of whether OP can be used as a float register
|
||||
operand. Reject (SUBREG:SF (REG:SI )) )) */
|
||||
|
||||
int
|
||||
fp_reg_operand (op, mode)
|
||||
rtx op;
|
||||
enum machine_mode mode;
|
||||
{
|
||||
return (register_operand (op, mode) &&
|
||||
(GET_CODE (op) != SUBREG ||
|
||||
GET_MODE_CLASS (GET_MODE (SUBREG_REG (op))) == MODE_FLOAT));
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,163 @@
|
|||
/* Definitions of target machine for GNU compiler. Vax sysV version.
|
||||
Copyright (C) 1988 Free Software Foundation, Inc.
|
||||
|
||||
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 "clipper.h"
|
||||
|
||||
#include "svr3.h"
|
||||
|
||||
/* Names to predefine in the preprocessor for this target machine. */
|
||||
|
||||
#define CPP_PREDEFINES "-Dclipper -Dunix"
|
||||
|
||||
#undef STARTFILE_SPEC
|
||||
#define STARTFILE_SPEC \
|
||||
"%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} crtbegin.o%s"
|
||||
|
||||
#undef ENDFILE_SPEC
|
||||
#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
|
||||
|
||||
#undef LIB_SPEC
|
||||
|
||||
#undef HAVE_ATEXIT
|
||||
#define HAVE_ATEXIT
|
||||
|
||||
#define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
|
||||
{ \
|
||||
unsigned char *s; \
|
||||
int i; \
|
||||
for (i = 0, s = (PTR); i < (LEN); s++, i++) \
|
||||
{ \
|
||||
if ((i % 8) == 0) \
|
||||
fputs ("\n\t.byte\t", (FILE)); \
|
||||
fprintf ((FILE), "%s0x%x", (i%8?",":""), (unsigned)*s); \
|
||||
} \
|
||||
fputs ("\n", (FILE)); \
|
||||
}
|
||||
|
||||
#undef ASM_OUTPUT_DOUBLE
|
||||
#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
|
||||
{ \
|
||||
union { int i[2]; double d; } _d_; \
|
||||
_d_.d = VALUE; \
|
||||
fprintf (FILE, "\t.long 0x%08x,0x%08x\n", _d_.i[0],_d_.i[1]); \
|
||||
}
|
||||
|
||||
#undef ASM_OUTPUT_FLOAT
|
||||
#define ASM_OUTPUT_FLOAT(FILE,VALUE) \
|
||||
{ \
|
||||
union { int i; float f; } _f_; \
|
||||
_f_.f = VALUE; \
|
||||
fprintf (FILE, "\t.long 0x%08x\n", _f_.i); \
|
||||
}
|
||||
|
||||
/* This is how to output an assembler line
|
||||
that says to advance the location counter
|
||||
to a multiple of 2**LOG bytes. */
|
||||
|
||||
#define ASM_OUTPUT_ALIGN(FILE,LOG) \
|
||||
fprintf(FILE, "\t.align %d\n", 1 << (LOG))
|
||||
|
||||
|
||||
#define ASM_LONG ".long"
|
||||
#define BSS_SECTION_ASM_OP ".bss"
|
||||
#undef INIT_SECTION_ASM_OP
|
||||
#define INIT_SECTION_ASM_OP ".section .init,\"x\""
|
||||
|
||||
|
||||
/* Define a few machine-specific details of the implementation of
|
||||
constructors.
|
||||
|
||||
The __CTORS_LIST__ goes in the .init section. Define CTOR_LIST_BEGIN
|
||||
and CTOR_LIST_END to contribute to the .init section an instruction to
|
||||
push a word containing 0 (or some equivalent of that).
|
||||
|
||||
ASM_OUTPUT_CONSTRUCTOR should be defined to push the address of the
|
||||
constructor. */
|
||||
|
||||
#define CTOR_LIST_BEGIN \
|
||||
asm (INIT_SECTION_ASM_OP); \
|
||||
asm ("subq $8,sp"); \
|
||||
asm ("loadq $0,r0"); \
|
||||
asm ("storw r0,(sp)")
|
||||
|
||||
/* don't need end marker */
|
||||
|
||||
#undef CTOR_LIST_END
|
||||
|
||||
#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
|
||||
do { \
|
||||
init_section (); \
|
||||
fputs ("\tloada ", FILE); \
|
||||
assemble_name (FILE, NAME); \
|
||||
fputs (",r0\n\tsubq $8,sp\n\tstorw r0,(sp)\n", FILE); \
|
||||
} while (0)
|
||||
|
||||
|
||||
/* fini psect is 8 aligned */
|
||||
|
||||
#define DTOR_LIST_BEGIN \
|
||||
asm (DTORS_SECTION_ASM_OP); \
|
||||
func_ptr __DTOR_LIST__[2] = { (func_ptr) (-1), 0 };
|
||||
|
||||
/* A C statement (sans semicolon) to output an element in the table of
|
||||
global destructors. */
|
||||
|
||||
#undef ASM_OUTPUT_DESTRUCTOR
|
||||
#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
|
||||
do { \
|
||||
fini_section (); \
|
||||
fprintf (FILE, "%s\t ", ASM_LONG); \
|
||||
assemble_name (FILE, NAME); \
|
||||
fprintf (FILE, ",0\n"); \
|
||||
} while (0)
|
||||
|
||||
|
||||
/* On clix crt1.o first calls init code and then sets environ and a valid
|
||||
chrclass. Unfortunately stdio routines bomb with unset chrclass.
|
||||
Therefore we set chrclass prior to calling global constructors. */
|
||||
|
||||
#undef DO_GLOBAL_CTORS_BODY
|
||||
#define DO_GLOBAL_CTORS_BODY \
|
||||
do { \
|
||||
func_ptr *p, *beg = alloca (0); \
|
||||
_setchrclass (0); \
|
||||
for (p = beg; *p; p+=2) \
|
||||
; \
|
||||
while (p != beg) \
|
||||
{ p-= 2; (*p) (); } \
|
||||
} while (0)
|
||||
|
||||
|
||||
#undef DO_GLOBAL_DTORS_BODY
|
||||
#define DO_GLOBAL_DTORS_BODY \
|
||||
func_ptr *f = &__DTOR_LIST__[2]; /* 0,1 contains -1,0 */ \
|
||||
int n = 0; \
|
||||
while (*f) \
|
||||
{ \
|
||||
f+= 2; /* skip over alignment 0 */ \
|
||||
n++; \
|
||||
} \
|
||||
f -= 2; \
|
||||
while (--n >= 0) \
|
||||
{ \
|
||||
(*f) (); \
|
||||
f-= 2; /* skip over alignment 0 */ \
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -0,0 +1 @@
|
|||
ALLOCA = alloca.o
|
||||
|
|
@ -0,0 +1,44 @@
|
|||
/* Config file for Clipper running Clix, system V. 3.2 clone */
|
||||
|
||||
|
||||
/* #defines that need visibility everywhere. */
|
||||
#define FALSE 0
|
||||
#define TRUE 1
|
||||
|
||||
/* target machine dependencies.
|
||||
tm.h is a symbolic link to the actual target specific file. */
|
||||
|
||||
#include "tm.h"
|
||||
|
||||
/* This describes the machine the compiler is hosted on. */
|
||||
#define HOST_BITS_PER_CHAR 8
|
||||
#define HOST_BITS_PER_SHORT 16
|
||||
#define HOST_BITS_PER_INT 32
|
||||
#define HOST_BITS_PER_LONG 32
|
||||
#define HOST_BITS_PER_LONGLONG 64
|
||||
|
||||
/* This machine uses IEEE floats. */
|
||||
/* #define HOST_FLOAT_FORMAT IEEE_FLOAT_FORMAT */
|
||||
|
||||
/* Arguments to use with `exit'. */
|
||||
#define SUCCESS_EXIT_CODE 0
|
||||
#define FATAL_EXIT_CODE 33
|
||||
|
||||
/* If compiled with GNU C, use the built-in alloca */
|
||||
#ifdef __GNUC__
|
||||
#define alloca __builtin_alloca
|
||||
#endif
|
||||
|
||||
/* isinf isn't there, but finite is. */
|
||||
#define isinf(x) (!finite(x))
|
||||
|
||||
|
||||
#define USG
|
||||
|
||||
#define bcopy(a,b,c) memcpy (b,a,c)
|
||||
#define bzero(a,b) memset (a,0,b)
|
||||
#define bcmp(a,b,c) memcmp (a,b,c)
|
||||
#define index strchr
|
||||
#define rindex strrchr
|
||||
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
Loading…
Reference in New Issue