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Diffstat (limited to 'gcc/config/clipper/clipper.c')
| -rw-r--r-- | gcc/config/clipper/clipper.c | 474 |
1 files changed, 0 insertions, 474 deletions
diff --git a/gcc/config/clipper/clipper.c b/gcc/config/clipper/clipper.c deleted file mode 100644 index 9ee6f444981..00000000000 --- a/gcc/config/clipper/clipper.c +++ /dev/null @@ -1,474 +0,0 @@ -/* 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, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, 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[]; - -extern int frame_pointer_needed; - -static int frame_size; - -/* - * compute size of a clipper stack frame where 'lsize' is the required - * space for local variables. - */ - -int -clipper_frame_size (lsize) - int lsize; -{ - int i,size; /* total size of frame */ - int save_size; - save_size = 0; /* compute size for reg saves */ - - for (i = 16; 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; - - size = lsize + save_size; - - size = (size + 7) & ~7; /* align to 64 Bit */ - return size; -} - -/* - * prologue and epilogue output - * function is entered with pc pushed, i.e. stack is 32 bit aligned - * - * current_function_args_size == 0 means that the current function's args - * are passed totally in registers i.e fp is not used as ap. - * If frame_size is also 0 the current function does not push anything and - * can run with misaligned stack -> subq $4,sp / add $4,sp on entry and exit - * can be omitted. - * - */ -void -output_function_prologue (file, lsize) - FILE *file; - int lsize; /* size for locals */ -{ - int i, offset; - int size; - - frame_size = size = clipper_frame_size (lsize); - - if (frame_pointer_needed) - { - fputs ("\tpushw fp,sp\n", file); - fputs ("\tmovw sp,fp\n", file); - } - else if (size != 0 || current_function_args_size != 0) - { - size += 4; /* keep stack aligned */ - frame_size = size; /* must push data or access args */ - } - - if (size) - { - if (size < 16) - fprintf (file, "\tsubq $%d,sp\n", size); - else - fprintf (file, "\tsubi $%d,sp\n", size); - - /* register save slots are relative to sp, because we have small positive - displacements and this works whether we have a frame pointer or not */ - - offset = 0; - for (i = 16; i < 32; i++) - if (regs_ever_live[i] && !call_used_regs[i]) - { - if (offset == 0) - fprintf (file, "\tstord f%d,(sp)\n", i-16); - else - fprintf (file, "\tstord f%d,%d(sp)\n", i-16, offset); - offset += 8; - } - - for (i = 0; i < 16; i++) - if (regs_ever_live[i] && !call_used_regs[i]) - { - if (offset == 0) - fprintf (file, "\tstorw r%d,(sp)\n", i); - else - fprintf (file, "\tstorw r%d,%d(sp)\n", i, offset); - offset += 4; - } - } -} - -void -output_function_epilogue (file, size) - FILE *file; - int size; /* ignored */ -{ - int i, offset; - - if (frame_pointer_needed) - { - offset = -frame_size; - - 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); - } - - else /* no frame pointer */ - { - offset = 0; - - for (i = 16; i < 32; i++) - if (regs_ever_live[i] && !call_used_regs[i]) - { - if (offset == 0) - fprintf (file, "\tloadd (sp),f%d\n", i-16); - else - fprintf (file, "\tloadd %d(sp),f%d\n", offset, i-16); - offset += 8; - } - - for (i = 0; i < 16; i++) - if (regs_ever_live[i] && !call_used_regs[i]) - { - if (offset == 0) - fprintf (file, "\tloadw (sp),r%d\n", i); - else - fprintf (file, "\tloadw %d(sp),r%d\n", offset, i); - offset += 4; - } - - if (frame_size > 0) - { - if (frame_size < 16) - fprintf (file, "\taddq $%d,sp\n", frame_size); - else - fprintf (file, "\taddi $%d,sp\n", frame_size); - } - - fputs ("\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 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, scratch, r0_addr,r1_addr,f0_addr,f1_addr; - - /* Allocate the va_list constructor + save area for r0,r1,f0,f1 */ - - block = assign_stack_local (BLKmode, - (6 + 6) * 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)); - - f0_addr = gen_rtx (PLUS, Pmode, addr, gen_rtx (CONST_INT, Pmode, 24)); - f1_addr = gen_rtx (PLUS, Pmode, addr, gen_rtx (CONST_INT, Pmode, 32)); - r0_addr = gen_rtx (PLUS, Pmode, addr, gen_rtx (CONST_INT, Pmode, 40)); - r1_addr = gen_rtx (PLUS, Pmode, addr, gen_rtx (CONST_INT, Pmode, 44)); - - - /* Store float regs */ - - emit_move_insn (gen_rtx (MEM, DFmode, f0_addr), gen_rtx (REG, DFmode, 16)); - emit_move_insn (gen_rtx (MEM, DFmode, f1_addr), gen_rtx (REG, DFmode, 17)); - - /* Store int regs */ - - emit_move_insn (gen_rtx (MEM, SImode, r0_addr), gen_rtx (REG, SImode, 0)); - emit_move_insn (gen_rtx (MEM, SImode, r1_addr), gen_rtx (REG, SImode, 1)); - - /* Store the arg pointer in the __va_stk member. */ - - emit_move_insn (gen_rtx (MEM, SImode, addr), - copy_to_reg (virtual_incoming_args_rtx)); - - - /* now move addresses of the saved regs into the pointer array */ - - scratch = gen_reg_rtx (Pmode); - - emit_move_insn (scratch, r0_addr); - emit_move_insn (gen_rtx (MEM, SImode, - gen_rtx (PLUS, Pmode, addr, - gen_rtx (CONST_INT, Pmode, 4))), - scratch); - - emit_move_insn (scratch, f0_addr); - emit_move_insn (gen_rtx (MEM, SImode, - gen_rtx (PLUS, Pmode, addr, - gen_rtx (CONST_INT, Pmode, 8))), - scratch); - - emit_move_insn (scratch, r1_addr); - emit_move_insn (gen_rtx (MEM, SImode, - gen_rtx (PLUS, Pmode, addr, - gen_rtx (CONST_INT, Pmode, 12))), - scratch); - - emit_move_insn (scratch, f1_addr); - emit_move_insn (gen_rtx (MEM, SImode, - gen_rtx (PLUS, Pmode, addr, - gen_rtx (CONST_INT, Pmode, 16))), - scratch); - - /* 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)); -} - |