--- /dev/null
+/* 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));
+}
+
+\f
+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);
+ }
+}
+
+\f
+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 ();
+ }
+}
+
+\f
+/* 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));
+}
+
--- /dev/null
+/* 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\""
+
+\f
+/* 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 */ \
+ }
+
+
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