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Diffstat (limited to 'gcc/config/we32k/we32k.c')
| -rw-r--r-- | gcc/config/we32k/we32k.c | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/gcc/config/we32k/we32k.c b/gcc/config/we32k/we32k.c deleted file mode 100644 index 2403041ac69..00000000000 --- a/gcc/config/we32k/we32k.c +++ /dev/null @@ -1,214 +0,0 @@ -/* Subroutines for insn-output.c for AT&T we32000 Family. - Copyright (C) 1991, 1992, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. - Contributed by John Wehle (john@feith1.uucp) - -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 "insn-config.h" -#include "rtl.h" -#include "function.h" -#include "real.h" -#include "recog.h" -#include "output.h" -#include "regs.h" -#include "tree.h" -#include "expr.h" -#include "hard-reg-set.h" -#include "tm_p.h" -#include "target.h" -#include "target-def.h" - -static void we32k_output_function_prologue PARAMS ((FILE *, HOST_WIDE_INT)); -static void we32k_output_function_epilogue PARAMS ((FILE *, HOST_WIDE_INT)); - -/* Initialize the GCC target structure. */ -#undef TARGET_ASM_ALIGNED_HI_OP -#define TARGET_ASM_ALIGNED_HI_OP "\t.half\t" -#undef TARGET_ASM_ALIGNED_SI_OP -#define TARGET_ASM_ALIGNED_SI_OP "\t.word\t" - -#undef TARGET_ASM_FUNCTION_PROLOGUE -#define TARGET_ASM_FUNCTION_PROLOGUE we32k_output_function_prologue -#undef TARGET_ASM_FUNCTION_EPILOGUE -#define TARGET_ASM_FUNCTION_EPILOGUE we32k_output_function_epilogue - -struct gcc_target targetm = TARGET_INITIALIZER; - -/* 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 -we32k_output_function_prologue (file, size) - FILE *file; - HOST_WIDE_INT size; -{ - register int nregs_to_save; - register int regno; - - nregs_to_save = 0; - for (regno = 8; regno > 2; regno--) - if (regs_ever_live[regno] && ! call_used_regs[regno]) - nregs_to_save = (9 - regno); - - fprintf (file, "\tsave &%d\n", nregs_to_save); - if (size) - fprintf (file, "\taddw2 &%d,%%sp\n", (size + 3) & ~3); -} - -/* 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 -we32k_output_function_epilogue (file, size) - FILE *file; - HOST_WIDE_INT size ATTRIBUTE_UNUSED; -{ - register int nregs_to_restore; - register int regno; - - nregs_to_restore = 0; - for (regno = 8; regno > 2; regno--) - if (regs_ever_live[regno] && ! call_used_regs[regno]) - nregs_to_restore = (9 - regno); - - fprintf (file, "\tret &%d\n", nregs_to_restore); -} - -void -output_move_double (operands) - rtx *operands; -{ - rtx lsw_operands[2]; - rtx lsw_sreg = NULL; - rtx msw_dreg = NULL; - - if (GET_CODE (operands[0]) == REG) - { - lsw_operands[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); - msw_dreg = operands[0]; - } - else if (GET_CODE (operands[0]) == MEM && offsettable_memref_p (operands[0])) - lsw_operands[0] = adjust_address (operands[0], SImode, 4); - else - abort (); - - if (GET_CODE (operands[1]) == REG) - { - lsw_operands[1] = gen_rtx_REG (SImode, REGNO (operands[1]) + 1); - lsw_sreg = lsw_operands[1]; - } - else if (GET_CODE (operands[1]) == MEM && offsettable_memref_p (operands[1])) - { - lsw_operands[1] = adjust_address (operands[1], SImode, 4); - lsw_sreg = operands[1]; - for ( ; ; ) - { - if (REG_P (lsw_sreg)) - break; - if (CONSTANT_ADDRESS_P (lsw_sreg)) - { - lsw_sreg = NULL; - break; - } - if (GET_CODE (lsw_sreg) == MEM) - { - lsw_sreg = XEXP (lsw_sreg, 0); - continue; - } - if (GET_CODE (lsw_sreg) == PLUS) - { - if (CONSTANT_ADDRESS_P (XEXP (lsw_sreg, 1))) - { - lsw_sreg = XEXP (lsw_sreg, 0); - continue; - } - else if (CONSTANT_ADDRESS_P (XEXP (lsw_sreg, 0))) - { - lsw_sreg = XEXP (lsw_sreg, 1); - continue; - } - } - abort (); - } - } - else if (GET_CODE (operands[1]) == CONST_DOUBLE) - { - lsw_operands[1] = GEN_INT (CONST_DOUBLE_HIGH (operands[1])); - operands[1] = GEN_INT (CONST_DOUBLE_LOW (operands[1])); - } - else if (GET_CODE (operands[1]) == CONST_INT) - { - lsw_operands[1] = operands[1]; - operands[1] = const0_rtx; - } - else - abort (); - - if (!msw_dreg || !lsw_sreg || REGNO (msw_dreg) != REGNO (lsw_sreg)) - { - output_asm_insn ("movw %1, %0", operands); - output_asm_insn ("movw %1, %0", lsw_operands); - } - else - { - output_asm_insn ("movw %1, %0", lsw_operands); - output_asm_insn ("movw %1, %0", operands); - } -} - -void -output_push_double (operands) - rtx *operands; -{ - rtx lsw_operands[1]; - - if (GET_CODE (operands[0]) == REG) - lsw_operands[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); - else if (GET_CODE (operands[0]) == MEM && offsettable_memref_p (operands[0])) - lsw_operands[0] = adjust_address (operands[0], SImode, 4); - else if (GET_CODE (operands[0]) == CONST_DOUBLE) - { - lsw_operands[0] = GEN_INT (CONST_DOUBLE_HIGH (operands[0])); - operands[0] = GEN_INT (CONST_DOUBLE_LOW (operands[0])); - } - else if (GET_CODE (operands[0]) == CONST_INT) - { - lsw_operands[0] = operands[0]; - operands[0] = const0_rtx; - } - else - abort (); - - output_asm_insn ("pushw %0", operands); - output_asm_insn ("pushw %0", lsw_operands); -} |