+++ /dev/null
-/* Subroutines for insn-output.c for GNU compiler. Elxsi version.
- Copyright (C) 1987, 1992, 1998, 1999, 2000 Free Software Foundation, Inc
- Contributrd by Mike Stump <mrs@cygnus.com> in 1988 and is the first
- 64 bit port of GNU CC.
- Based upon the VAX port.
-
-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 "config.h"
-#include "system.h"
-#include "rtl.h"
-#include "function.h"
-#include "output.h"
-#include "tree.h"
-#include "expr.h"
-#include "regs.h"
-#include "flags.h"
-#include "hard-reg-set.h"
-#include "tm_p.h"
-#include "target.h"
-#include "target-def.h"
-
-extern const char *reg_names[];
-rtx cmp_op0=0, cmp_op1=0;
-
-/* table of relations for compares and branches */
-static const char *const cmp_tab[] = {
- "gt", "gt", "eq", "eq", "ge", "ge", "lt", "lt", "ne", "ne",
- "le", "le" };
-
-static bool elxsi_assemble_integer PARAMS ((rtx, unsigned int, int));
-static void elxsi_output_function_prologue PARAMS ((FILE *, HOST_WIDE_INT));
-static void elxsi_output_function_epilogue PARAMS ((FILE *, HOST_WIDE_INT));
-\f
-/* Initialize the GCC target structure. */
-#undef TARGET_ASM_BYTE_OP
-#define TARGET_ASM_BYTE_OP NULL
-#undef TARGET_ASM_ALIGNED_HI_OP
-#define TARGET_ASM_ALIGNED_HI_OP NULL
-#undef TARGET_ASM_ALIGNED_SI_OP
-#define TARGET_ASM_ALIGNED_SI_OP NULL
-#undef TARGET_ASM_INTEGER
-#define TARGET_ASM_INTEGER elxsi_assemble_integer
-
-#undef TARGET_ASM_FUNCTION_PROLOGUE
-#define TARGET_ASM_FUNCTION_PROLOGUE elxsi_output_function_prologue
-#undef TARGET_ASM_FUNCTION_EPILOGUE
-#define TARGET_ASM_FUNCTION_EPILOGUE elxsi_output_function_epilogue
-
-struct gcc_target targetm = TARGET_INITIALIZER;
-\f
-/* Target hook for assembling integer objects. The ELXSI assembler
- syntax uses a suffix to indicate the size of data, so we can't use
- the usual string hooks. */
-
-static bool
-elxsi_assemble_integer (x, size, aligned_p)
- rtx x;
- unsigned int size;
- int aligned_p;
-{
- if (aligned_p)
- switch (size)
- {
- case 1:
- case 2:
- case 4:
- fputs ("\t.data\t", asm_out_file);
- output_addr_const (asm_out_file, x);
- fprintf (asm_out_file, "{%d}\n", size * BITS_PER_UNIT);
- return true;
- }
- return default_assemble_integer (x, size, aligned_p);
-}
-\f
-/* Generate the assembly code for function entry. FILE is a stdio
- stream to output the code to. SIZE is an int: how many units of
- temporary storage to allocate.
-
- Refer to the array `regs_ever_live' to determine which registers to
- save; `regs_ever_live[I]' is nonzero if register number I is ever
- used in the function. This function is responsible for knowing
- which registers should not be saved even if used. */
-
-static void
-elxsi_output_function_prologue (file, size)
- FILE *file;
- HOST_WIDE_INT size;
-{
- register int regno;
- register int cnt = 0;
-
- /* the below two lines are a HACK, and should be deleted, but
- for now are very much needed (1.35) */
- if (frame_pointer_needed)
- regs_ever_live[14] = 1, call_used_regs[14] = 0;
-
- for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
- if (regs_ever_live[regno] && !call_used_regs[regno])
- cnt += 8;
-
- if (size + cnt)
- fprintf (file, "\tadd.64\t.sp,=%d\n", -size - cnt);
-
- cnt = 0;
- for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
- if (regs_ever_live[regno] && !call_used_regs[regno])
- fprintf (file, "\tst.64\t.r%d,[.sp]%d\n", regno, (cnt += 8) - 12);
-
- if (frame_pointer_needed)
- fprintf (file, "\tadd.64\t.r14,.sp,=%d\n", size + cnt);
-}
-
-/* This function generates the assembly code for function exit.
- Args are as for output_function_prologue ().
-
- The function epilogue should not depend on the current stack
- pointer! It should use the frame pointer only. This is mandatory
- because of alloca; we also take advantage of it to omit stack
- adjustments before returning. */
-
-static void
-elxsi_output_function_epilogue (file, size)
- FILE *file;
- HOST_WIDE_INT size;
-{
- register int regno;
- register int cnt = 0;
-
- /* this conditional is ONLY here because there is a BUG;
- EXIT_IGNORE_STACK is ignored itself when the first part of
- the condition is true! (at least in version 1.35) */
- /* the 8*10 is for 64 bits of .r5 - .r14 */
- if (current_function_calls_alloca || size >= (256 - 8 * 10))
- {
- /* use .r4 as a temporary! Ok for now.... */
- fprintf (file, "\tld.64\t.r4,.r14\n");
-
- for (regno = FIRST_PSEUDO_REGISTER-1; regno >= 0; --regno)
- if (regs_ever_live[regno] && !call_used_regs[regno])
- cnt += 8;
-
- for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno)
- if (regs_ever_live[regno] && !call_used_regs[regno])
- fprintf (file, "\tld.64\t.r%d,[.r14]%d\n", regno,
- -((cnt -= 8) + 8) - 4 - size);
-
- fprintf (file, "\tld.64\t.sp,.r4\n\texit\t0\n");
- }
- else
- {
- for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno)
- if (regs_ever_live[regno] && !call_used_regs[regno])
- fprintf (file, "\tld.64\t.r%d,[.sp]%d\n", regno, (cnt += 8) - 12);
-
- fprintf (file, "\texit\t%d\n", size + cnt);
- }
-}
-
-/* type is the index into the above table */
-/* s is "" for signed, or "u" for unsigned */
-const char *
-cmp_jmp (s, type, where)
- const char *s;
- int type;
- rtx where;
-{
- rtx br_ops[3];
- char template[50];
- const char *f = "";
- const char *bits = "64";
- if (GET_MODE (cmp_op0) == SFmode) f = "f", bits = "32";
- if (GET_MODE (cmp_op0) == DFmode) f = "f";
- br_ops[0] = where;
- br_ops[1] = cmp_op0;
- br_ops[2] = cmp_op1;
- if (cmp_op1)
- sprintf(template, "%scmp%s.br.%s\t%%1,%%2:j%s\t%%l0",
- f, s, bits, cmp_tab[type]);
- else if (*f)
- sprintf(template, "fcmp.br.%s\t%%1,=0:j%s\t%%l0",
- bits, cmp_tab[type]);
- else if (*s) /* can turn the below in to a jmp ... */
- sprintf(template, "cmpu.br.64\t%%1,=0:j%s\t%%l0", s);
- else
- sprintf(template, "jmp.%s\t%%1,%%l0", cmp_tab[type+1]);
- output_asm_insn(template, br_ops);
- return "";
-}
-
-const char *
-cmp_set (s, type, reg)
- const char *s, *type;
- rtx reg;
-{
- rtx br_ops[3];
- char template[50];
- const char *f = "";
- const char *bits = "64";
- if (GET_MODE (cmp_op0) == SFmode) f = "f", bits = "32";
- else if (GET_MODE (cmp_op0) == DFmode) f = "f";
- else if (GET_MODE (cmp_op0) == SImode) bits = "32";
- else if (GET_MODE (cmp_op0) == HImode) bits = "16";
- else if (GET_MODE (cmp_op0) == QImode) bits = "8";
- br_ops[0] = reg;
- br_ops[1] = cmp_op0;
- br_ops[2] = cmp_op1;
- if (cmp_op1)
- sprintf(template, "%scmp%s.%s\t%%0,%%1,%%2:%s",
- f, s, bits, type);
- else
- sprintf(template, "%scmp%s.%s\t%%0,%%1,=0:%s",
- f, s, bits, type);
- output_asm_insn(template, br_ops);
- return "";
-}
-
-void
-print_operand_address (file, addr)
- FILE *file;
- register rtx addr;
-{
- register rtx reg1, reg2, breg, ireg;
- rtx offset;
-
- switch (GET_CODE (addr))
- {
-
- case MEM:
- if (GET_CODE (XEXP (addr, 0)) == REG)
- fprintf (file, "%s", reg_names[REGNO (addr)]);
- else abort();
- break;
-
- case REG:
- fprintf (file, "[%s]", reg_names[REGNO (addr)]);
- break;
-
- case PLUS:
- reg1 = 0; reg2 = 0;
- ireg = 0; breg = 0;
- offset = 0;
- if (GET_CODE (XEXP (addr, 0)) == REG)
- {
- offset = XEXP (addr, 1);
- addr = XEXP (addr, 0);
- }
- else if (GET_CODE (XEXP (addr, 1)) == REG)
- {
- offset = XEXP (addr, 0);
- addr = XEXP (addr, 1);
- }
- fprintf (file, "[%s]", reg_names[REGNO (addr)]);
- output_address (offset);
- break;
-
- default:
- output_addr_const (file, addr);
- }
-}
projects / msp430-gcc.git / blobdiff