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Diffstat (limited to 'gcc/config/ns32k/ns32k.c')
-rwxr-xr-xgcc/config/ns32k/ns32k.c1196
1 files changed, 0 insertions, 1196 deletions
diff --git a/gcc/config/ns32k/ns32k.c b/gcc/config/ns32k/ns32k.c
deleted file mode 100755
index af89e59..0000000
--- a/gcc/config/ns32k/ns32k.c
+++ /dev/null
@@ -1,1196 +0,0 @@
-/* Subroutines for assembler code output on the NS32000.
- Copyright (C) 1988, 1994, 1995, 1996, 1997 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, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-/* Some output-actions in ns32k.md need these. */
-#include "config.h"
-#include "system.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 "expr.h"
-#include "flags.h"
-
-#ifdef OSF_OS
-int ns32k_num_files = 0;
-#endif
-
-/* This duplicates reg_class_contens in reg_class.c, but maybe that isn't
- initialized in time. Also this is more convenient as an array of ints.
- We know that HARD_REG_SET fits in an unsigned int */
-
-unsigned int ns32k_reg_class_contents[N_REG_CLASSES] = REG_CLASS_CONTENTS;
-
-enum reg_class regclass_map[FIRST_PSEUDO_REGISTER] =
-{
- GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS,
- GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS,
- FLOAT_REG0, LONG_FLOAT_REG0, FLOAT_REGS, FLOAT_REGS,
- FLOAT_REGS, FLOAT_REGS, FLOAT_REGS, FLOAT_REGS,
- FP_REGS, FP_REGS, FP_REGS, FP_REGS,
- FP_REGS, FP_REGS, FP_REGS, FP_REGS,
- FRAME_POINTER_REG, STACK_POINTER_REG
-};
-
-char *ns32k_out_reg_names[] = OUTPUT_REGISTER_NAMES;
-
-void
-trace (s, s1, s2)
- char *s, *s1, *s2;
-{
- fprintf (stderr, s, s1, s2);
-}
-
-
-/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. */
-int
-hard_regno_mode_ok (regno, mode)
- int regno;
- enum machine_mode mode;
-{
- int size = GET_MODE_UNIT_SIZE(mode);
-
- if (FLOAT_MODE_P(mode))
- {
- if (size == UNITS_PER_WORD && regno < L1_REGNUM)
- return 1;
- if (size == UNITS_PER_WORD * 2
- && (((regno & 1) == 0 && regno < FRAME_POINTER_REGNUM)))
- return 1;
- return 0;
- }
- if (size == UNITS_PER_WORD * 2
- && (regno & 1) == 0 && regno < F0_REGNUM)
- return 1;
- if (size <= UNITS_PER_WORD
- && (regno < F0_REGNUM || regno == FRAME_POINTER_REGNUM
- || regno == STACK_POINTER_REGNUM))
- return 1;
- return 0;
-}
-
-int register_move_cost(CLASS1, CLASS2)
- enum reg_class CLASS1;
- enum reg_class CLASS2;
-{
- if (CLASS1 == NO_REGS || CLASS2 == NO_REGS)
- return 2;
- if((SUBSET_P(CLASS1, FP_REGS) && !SUBSET_P(CLASS2, FP_REGS))
- || (!SUBSET_P(CLASS1, FP_REGS) && SUBSET_P(CLASS2, FP_REGS)))
- return 8;
- if (((CLASS1) == STACK_POINTER_REG && !SUBSET_P(CLASS2,GENERAL_REGS))
- || ((CLASS2) == STACK_POINTER_REG && !SUBSET_P(CLASS1,GENERAL_REGS)))
- return 6;
- if (((CLASS1) == FRAME_POINTER_REG && !SUBSET_P(CLASS2,GENERAL_REGS))
- || ((CLASS2) == FRAME_POINTER_REG && !SUBSET_P(CLASS1,GENERAL_REGS)))
- return 6;
- return 2;
-}
-
-#if 0
-/* We made the insn definitions copy from floating point to general
- registers via the stack. */
-int secondary_memory_needed(CLASS1, CLASS2, M)
- enum reg_class CLASS1;
- enum reg_class CLASS2;
- enum machine_mode M;
-{
- int ret = ((SUBSET_P(CLASS1, FP_REGS) && !SUBSET_P(CLASS2, FP_REGS))
- || (!SUBSET_P(CLASS1, FP_REGS) && SUBSET_P(CLASS2, FP_REGS)));
- return ret;
-}
-#endif
-
-
-/* ADDRESS_COST calls this. This function is not optimal
- for the 32032 & 32332, but it probably is better than
- the default. */
-
-int
-calc_address_cost (operand)
- rtx operand;
-{
- int i;
- int cost = 0;
-
- if (GET_CODE (operand) == MEM)
- cost += 3;
- if (GET_CODE (operand) == MULT)
- cost += 2;
-#if 0
- if (GET_CODE (operand) == REG)
- cost += 1; /* not really, but the documentation
- says different amount of registers
- shouldn't return the same costs */
-#endif
- switch (GET_CODE (operand))
- {
- case REG:
- case CONST:
- case CONST_INT:
- case CONST_DOUBLE:
- case SYMBOL_REF:
- case LABEL_REF:
- case POST_DEC:
- case PRE_DEC:
- break;
- case MEM:
- cost += calc_address_cost (XEXP (operand, 0));
- break;
- case MULT:
- case PLUS:
- for (i = 0; i < GET_RTX_LENGTH (GET_CODE (operand)); i++)
- {
- cost += calc_address_cost (XEXP (operand, i));
- }
- default:
- break;
- }
- return cost;
-}
-
-/* Return the register class of a scratch register needed to copy IN into
- or out of a register in CLASS in MODE. If it can be done directly,
- NO_REGS is returned. */
-
-enum reg_class
-secondary_reload_class (class, mode, in)
- enum reg_class class;
- enum machine_mode mode;
- rtx in;
-{
- int regno = true_regnum (in);
-
- if (regno >= FIRST_PSEUDO_REGISTER)
- regno = -1;
-
- if ((class == FRAME_POINTER_REG && regno == STACK_POINTER_REGNUM)
- || ( class == STACK_POINTER_REG && regno == FRAME_POINTER_REGNUM))
- return GENERAL_REGS;
- else
- return NO_REGS;
-}
-
-/* Generate the rtx that comes from an address expression in the md file */
-/* The expression to be build is BASE[INDEX:SCALE]. To recognize this,
- scale must be converted from an exponent (from ASHIFT) to a
- multiplier (for MULT). */
-static rtx
-gen_indexed_expr (base, index, scale)
- rtx base, index, scale;
-{
- rtx addr;
-
- /* This generates an invalid addressing mode, if BASE is
- fp or sp. This is handled by PRINT_OPERAND_ADDRESS. */
- if (GET_CODE (base) != REG && GET_CODE (base) != CONST_INT)
- base = gen_rtx (MEM, SImode, base);
- addr = gen_rtx (MULT, SImode, index,
- GEN_INT (1 << INTVAL (scale)));
- addr = gen_rtx (PLUS, SImode, base, addr);
- return addr;
-}
-
-/* Return 1 if OP is a valid operand of mode MODE. This
- predicate rejects operands which do not have a mode
- (such as CONST_INT which are VOIDmode). */
-int
-reg_or_mem_operand (op, mode)
- register rtx op;
- enum machine_mode mode;
-{
- return (GET_MODE (op) == mode
- && (GET_CODE (op) == REG
- || GET_CODE (op) == SUBREG
- || GET_CODE (op) == MEM));
-}
-
-
-/* Split one or more DImode RTL references into pairs of SImode
- references. The RTL can be REG, offsettable MEM, integer constant, or
- CONST_DOUBLE. "operands" is a pointer to an array of DImode RTL to
- split and "num" is its length. lo_half and hi_half are output arrays
- that parallel "operands". */
-
-void
-split_di (operands, num, lo_half, hi_half)
- rtx operands[];
- int num;
- rtx lo_half[], hi_half[];
-{
- while (num--)
- {
- if (GET_CODE (operands[num]) == REG)
- {
- lo_half[num] = gen_rtx (REG, SImode, REGNO (operands[num]));
- hi_half[num] = gen_rtx (REG, SImode, REGNO (operands[num]) + 1);
- }
- else if (CONSTANT_P (operands[num]))
- {
- split_double (operands[num], &lo_half[num], &hi_half[num]);
- }
- else if (offsettable_memref_p (operands[num]))
- {
- lo_half[num] = operands[num];
- hi_half[num] = adj_offsettable_operand (operands[num], 4);
- }
- else
- abort();
- }
-}
-
-/* Return the best assembler insn template
- for moving operands[1] into operands[0] as a fullword. */
-
-static char *
-singlemove_string (operands)
- rtx *operands;
-{
- if (GET_CODE (operands[1]) == CONST_INT
- && INTVAL (operands[1]) <= 7
- && INTVAL (operands[1]) >= -8)
- return "movqd %1,%0";
- return "movd %1,%0";
-}
-
-char *
-output_move_double (operands)
- rtx *operands;
-{
- enum anon1 { REGOP, OFFSOP, PUSHOP, CNSTOP, RNDOP } optype0, optype1;
- rtx latehalf[2];
-
- /* First classify both operands. */
-
- if (REG_P (operands[0]))
- optype0 = REGOP;
- else if (offsettable_memref_p (operands[0]))
- optype0 = OFFSOP;
- else if (GET_CODE (XEXP (operands[0], 0)) == PRE_DEC)
- optype0 = PUSHOP;
- else
- optype0 = RNDOP;
-
- if (REG_P (operands[1]))
- optype1 = REGOP;
- else if (CONSTANT_P (operands[1])
- || GET_CODE (operands[1]) == CONST_DOUBLE)
- optype1 = CNSTOP;
- else if (offsettable_memref_p (operands[1]))
- optype1 = OFFSOP;
- else if (GET_CODE (XEXP (operands[1], 0)) == PRE_DEC)
- optype1 = PUSHOP;
- else
- optype1 = RNDOP;
-
- /* Check for the cases that the operand constraints are not
- supposed to allow to happen. Abort if we get one,
- because generating code for these cases is painful. */
-
- if (optype0 == RNDOP || optype1 == RNDOP)
- abort ();
-
- /* Ok, we can do one word at a time.
- Normally we do the low-numbered word first,
- but if either operand is autodecrementing then we
- do the high-numbered word first.
-
- In either case, set up in LATEHALF the operands to use
- for the high-numbered word and in some cases alter the
- operands in OPERANDS to be suitable for the low-numbered word. */
-
- if (optype0 == REGOP)
- latehalf[0] = gen_rtx (REG, SImode, REGNO (operands[0]) + 1);
- else if (optype0 == OFFSOP)
- latehalf[0] = adj_offsettable_operand (operands[0], 4);
- else
- latehalf[0] = operands[0];
-
- if (optype1 == REGOP)
- latehalf[1] = gen_rtx (REG, SImode, REGNO (operands[1]) + 1);
- else if (optype1 == OFFSOP)
- latehalf[1] = adj_offsettable_operand (operands[1], 4);
- else if (optype1 == CNSTOP)
- split_double (operands[1], &operands[1], &latehalf[1]);
- else
- latehalf[1] = operands[1];
-
- /* If insn is effectively movd N(sp),tos then we will do the
- high word first. We should use the adjusted operand 1 (which is N+4(sp))
- for the low word as well, to compensate for the first decrement of sp.
- Given this, it doesn't matter which half we do "first". */
- if (optype0 == PUSHOP
- && REGNO (XEXP (XEXP (operands[0], 0), 0)) == STACK_POINTER_REGNUM
- && reg_overlap_mentioned_p (stack_pointer_rtx, operands[1]))
- operands[1] = latehalf[1];
-
- /* If one or both operands autodecrementing,
- do the two words, high-numbered first. */
- else if (optype0 == PUSHOP || optype1 == PUSHOP)
- {
- output_asm_insn (singlemove_string (latehalf), latehalf);
- return singlemove_string (operands);
- }
-
- /* If the first move would clobber the source of the second one,
- do them in the other order. */
-
- /* Overlapping registers. */
- if (optype0 == REGOP && optype1 == REGOP
- && REGNO (operands[0]) == REGNO (latehalf[1]))
- {
- /* Do that word. */
- output_asm_insn (singlemove_string (latehalf), latehalf);
- /* Do low-numbered word. */
- return singlemove_string (operands);
- }
- /* Loading into a register which overlaps a register used in the address. */
- else if (optype0 == REGOP && optype1 != REGOP
- && reg_overlap_mentioned_p (operands[0], operands[1]))
- {
- if (reg_mentioned_p (operands[0], XEXP (operands[1], 0))
- && reg_mentioned_p (latehalf[0], XEXP (operands[1], 0)))
- {
- /* If both halves of dest are used in the src memory address,
- load the destination address into the low reg (operands[0]).
- Then it works to load latehalf first. */
- rtx xops[2];
- xops[0] = XEXP (operands[1], 0);
- xops[1] = operands[0];
- output_asm_insn ("addr %a0,%1", xops);
- operands[1] = gen_rtx (MEM, DImode, operands[0]);
- latehalf[1] = adj_offsettable_operand (operands[1], 4);
- /* The first half has the overlap, Do the late half first. */
- output_asm_insn (singlemove_string (latehalf), latehalf);
- /* Then clobber. */
- return singlemove_string (operands);
- }
- if (reg_mentioned_p (operands[0], XEXP (operands[1], 0)))
- {
- /* The first half has the overlap, Do the late half first. */
- output_asm_insn (singlemove_string (latehalf), latehalf);
- /* Then clobber. */
- return singlemove_string (operands);
- }
- }
-
- /* Normal case. Do the two words, low-numbered first. */
-
- output_asm_insn (singlemove_string (operands), operands);
-
- operands[0] = latehalf[0];
- operands[1] = latehalf[1];
- return singlemove_string (operands);
-}
-
-
-#define MAX_UNALIGNED_COPY (32)
-/* Expand string/block move operations.
-
- operands[0] is the pointer to the destination.
- operands[1] is the pointer to the source.
- operands[2] is the number of bytes to move.
- operands[3] is the alignment. */
-
-static void
-move_tail(operands, bytes, offset)
- rtx operands[];
- int bytes;
- int offset;
-{
- if (bytes & 2)
- {
- rtx src, dest;
- dest = change_address(operands[0], HImode,
- plus_constant(XEXP(operands[0], 0), offset));
- src = change_address(operands[1], HImode,
- plus_constant(XEXP(operands[1], 0), offset));
- emit_move_insn(dest, src);
- offset += 2;
- }
- if (bytes & 1)
- {
- rtx src, dest;
- dest = change_address(operands[0], QImode,
- plus_constant(XEXP(operands[0], 0), offset));
- src = change_address(operands[1], QImode,
- plus_constant(XEXP(operands[1], 0), offset));
- emit_move_insn(dest, src);
- }
-}
-
-void
-expand_block_move (operands)
- rtx operands[];
-{
- rtx bytes_rtx = operands[2];
- rtx align_rtx = operands[3];
- int constp = (GET_CODE (bytes_rtx) == CONST_INT);
- int bytes = (constp ? INTVAL (bytes_rtx) : 0);
- int align = INTVAL (align_rtx);
- rtx src_reg = gen_rtx(REG, Pmode, 1);
- rtx dest_reg = gen_rtx(REG, Pmode, 2);
- rtx count_reg = gen_rtx(REG, SImode, 0);
- rtx insn;
-
- if (constp && bytes <= 0)
- return;
-
- if (constp && bytes < 20)
- {
- int words = bytes >> 2;
- if (words)
- if (words < 3 || flag_unroll_loops)
- {
- int offset = 0;
- for (; words; words--, offset += 4)
- {
- rtx src, dest;
- dest = change_address(operands[0], SImode,
- plus_constant(XEXP(operands[0], 0), offset));
- src = change_address(operands[1], SImode,
- plus_constant(XEXP(operands[1], 0), offset));
- emit_move_insn(dest, src);
- }
- }
- else
- {
- /* Use movmd. It is slower than multiple movd's but more
- compact. It is also slower than movsd for large copies
- but causes less registers reloading so is better than movsd
- for small copies. */
- rtx src, dest;
- dest = copy_addr_to_reg (XEXP(operands[0], 0));
- src = copy_addr_to_reg (XEXP(operands[1], 0));
-
- emit_insn(gen_movstrsi2(dest, src, GEN_INT(words)));
- }
- move_tail(operands, bytes & 3, bytes & ~3);
- return;
- }
-
- if (align > UNITS_PER_WORD)
- align = UNITS_PER_WORD;
-
- /* Move the address into scratch registers. */
- emit_insn(gen_rtx(CLOBBER, VOIDmode, dest_reg));
- emit_move_insn(dest_reg, XEXP (operands[0], 0));
- emit_insn(gen_rtx(CLOBBER, VOIDmode, src_reg));
- emit_move_insn(src_reg, XEXP (operands[1], 0));
- emit_insn(gen_rtx(CLOBBER, VOIDmode, count_reg));
-
- if (constp && (align == UNITS_PER_WORD || bytes < MAX_UNALIGNED_COPY))
- {
- rtx bytes_reg;
-
- /* constant no of bytes and aligned or small enough copy to not bother
- * aligning. Emit insns to copy by words.
- */
- if (bytes >> 2)
- {
- emit_move_insn(count_reg, GEN_INT(bytes >> 2));
- emit_insn(gen_movstrsi1 (GEN_INT(4)));
- }
- /* insns to copy rest */
- move_tail(operands, bytes & 3, bytes & ~3);
- }
- else if (align == UNITS_PER_WORD)
- {
- /* insns to copy by words */
- emit_insn(gen_lshrsi3 (count_reg, bytes_rtx, GEN_INT(2)));
- emit_insn(gen_movstrsi1 (GEN_INT(4)));
- /* insns to copy rest */
- emit_insn(gen_andsi3 (count_reg, bytes_rtx, GEN_INT(3)));
- emit_insn(gen_movstrsi1 (const1_rtx));
- }
- else
- {
- /* Not aligned and we may have a lot to copy so it is worth
- * aligning.
- */
- rtx aligned_label = gen_label_rtx ();
- rtx bytes_reg;
-
- bytes_reg = copy_to_mode_reg(SImode, bytes_rtx);
- if (!constp)
- {
- /* Emit insns to test and skip over the alignment if it is
- * not worth it. This doubles as a test to ensure that the alignment
- * operation can't copy too many bytes
- */
- emit_insn(gen_cmpsi (bytes_reg, GEN_INT(MAX_UNALIGNED_COPY)));
- emit_jump_insn (gen_blt (aligned_label));
- }
-
- /* Emit insns to do alignment at run time */
- emit_insn(gen_negsi2 (count_reg, src_reg));
- emit_insn(gen_andsi3 (count_reg, count_reg, GEN_INT(3)));
- emit_insn(gen_subsi3 (bytes_reg, bytes_reg, count_reg));
- emit_insn(gen_movstrsi1 (const1_rtx));
- if (!constp)
- emit_label (aligned_label);
-
- /* insns to copy by words */
- emit_insn (gen_lshrsi3 (count_reg, bytes_reg, GEN_INT(2)));
- emit_insn(gen_movstrsi1 (GEN_INT(4)));
-
- /* insns to copy rest */
- emit_insn (gen_andsi3 (count_reg, bytes_reg, GEN_INT(3)));
- emit_insn(gen_movstrsi1 (const1_rtx));
- }
-}
-
-
-/* Returns 1 if OP contains a global symbol reference */
-
-int
-global_symbolic_reference_mentioned_p (op, f)
- rtx op;
- int f;
-{
- register char *fmt;
- register int i;
-
- if (GET_CODE (op) == SYMBOL_REF)
- {
- if (! SYMBOL_REF_FLAG (op))
- return 1;
- else
- return 0;
- }
- else if (f && GET_CODE (op) != CONST)
- return 0;
-
- fmt = GET_RTX_FORMAT (GET_CODE (op));
- for (i = GET_RTX_LENGTH (GET_CODE (op)) - 1; i >= 0; i--)
- {
- if (fmt[i] == 'E')
- {
- register int j;
-
- for (j = XVECLEN (op, i) - 1; j >= 0; j--)
- if (global_symbolic_reference_mentioned_p (XVECEXP (op, i, j), 0))
- return 1;
- }
- else if (fmt[i] == 'e'
- && global_symbolic_reference_mentioned_p (XEXP (op, i), 0))
- return 1;
- }
-
- return 0;
-}
-
-
-/* Returns 1 if OP contains a symbol reference */
-
-int
-symbolic_reference_mentioned_p (op)
- rtx op;
-{
- register char *fmt;
- register int i;
-
- if (GET_CODE (op) == SYMBOL_REF || GET_CODE (op) == LABEL_REF)
- return 1;
-
- fmt = GET_RTX_FORMAT (GET_CODE (op));
- for (i = GET_RTX_LENGTH (GET_CODE (op)) - 1; i >= 0; i--)
- {
- if (fmt[i] == 'E')
- {
- register int j;
-
- for (j = XVECLEN (op, i) - 1; j >= 0; j--)
- if (symbolic_reference_mentioned_p (XVECEXP (op, i, j)))
- return 1;
- }
- else if (fmt[i] == 'e' && symbolic_reference_mentioned_p (XEXP (op, i)))
- return 1;
- }
-
- return 0;
-}
-
-/* Return nonzero if IDENTIFIER with arguments ARGS is a valid machine specific
- attribute for DECL. The attributes in ATTRIBUTES have previously been
- assigned to DECL. */
-
-int
-ns32k_valid_decl_attribute_p (decl, attributes, identifier, args)
- tree decl;
- tree attributes;
- tree identifier;
- tree args;
-{
- return 0;
-}
-
-/* Return nonzero if IDENTIFIER with arguments ARGS is a valid machine specific
- attribute for TYPE. The attributes in ATTRIBUTES have previously been
- assigned to TYPE. */
-
-int
-ns32k_valid_type_attribute_p (type, attributes, identifier, args)
- tree type;
- tree attributes;
- tree identifier;
- tree args;
-{
- if (TREE_CODE (type) != FUNCTION_TYPE
- && TREE_CODE (type) != FIELD_DECL
- && TREE_CODE (type) != TYPE_DECL)
- return 0;
-
- /* Stdcall attribute says callee is responsible for popping arguments
- if they are not variable. */
- if (is_attribute_p ("stdcall", identifier))
- return (args == NULL_TREE);
-
- /* Cdecl attribute says the callee is a normal C declaration */
- if (is_attribute_p ("cdecl", identifier))
- return (args == NULL_TREE);
-
- return 0;
-}
-
-/* Return 0 if the attributes for two types are incompatible, 1 if they
- are compatible, and 2 if they are nearly compatible (which causes a
- warning to be generated). */
-
-int
-ns32k_comp_type_attributes (type1, type2)
- tree type1;
- tree type2;
-{
- return 1;
-}
-
-
-/* Value is the number of bytes of arguments automatically
- popped when returning from a subroutine call.
- FUNDECL is the declaration node of the function (as a tree),
- FUNTYPE is the data type of the function (as a tree),
- or for a library call it is an identifier node for the subroutine name.
- SIZE is the number of bytes of arguments passed on the stack.
-
- On the ns32k, the RET insn may be used to pop them if the number
- of args is fixed, but if the number is variable then the caller
- must pop them all. RET can't be used for library calls now
- because the library is compiled with the Unix compiler.
- Use of RET is a selectable option, since it is incompatible with
- standard Unix calling sequences. If the option is not selected,
- the caller must always pop the args.
-
- The attribute stdcall is equivalent to RET on a per module basis. */
-
-int
-ns32k_return_pops_args (fundecl, funtype, size)
- tree fundecl;
- tree funtype;
- int size;
-{
- int rtd = TARGET_RTD;
-
- if (TREE_CODE (funtype) == IDENTIFIER_NODE)
- return rtd ? size : 0;
-
- /* Cdecl functions override -mrtd, and never pop the stack */
- if (lookup_attribute ("cdecl", TYPE_ATTRIBUTES (funtype)))
- return 0;
-
- /* Stdcall functions will pop the stack if not variable args */
- if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (funtype)))
- rtd = 1;
-
- if (rtd)
- {
- if (TYPE_ARG_TYPES (funtype) == NULL_TREE
- || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (funtype))) == void_type_node))
- return size;
- }
-
- return 0;
-}
-
-/* PRINT_OPERAND is defined to call this function,
- which is easier to debug than putting all the code in
- a macro definition in ns32k.h. */
-
-/* XXX time 12% of cpu time is in fprintf for non optimizing */
-void
-print_operand (file, x, code)
- FILE *file;
- rtx x;
- char code;
-{
- if (code == '$')
- PUT_IMMEDIATE_PREFIX (file);
- else if (code == '?')
- PUT_EXTERNAL_PREFIX (file);
- else if (GET_CODE (x) == REG)
- fprintf (file, "%s", ns32k_out_reg_names[REGNO (x)]);
- else if (GET_CODE (x) == MEM)
- {
- rtx tmp = XEXP (x, 0);
- output_address (XEXP (x, 0));
- }
- else if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) != VOIDmode)
- {
- if (GET_MODE (x) == DFmode)
- {
- union { double d; int i[2]; } u;
- u.i[0] = CONST_DOUBLE_LOW (x); u.i[1] = CONST_DOUBLE_HIGH (x);
- PUT_IMMEDIATE_PREFIX(file);
-#ifdef SEQUENT_ASM
- /* Sequent likes its floating point constants as integers */
- fprintf (file, "0Dx%08x%08x", u.i[1], u.i[0]);
-#else
-#ifdef ENCORE_ASM
- fprintf (file, "0f%.20e", u.d);
-#else
- fprintf (file, "0d%.20e", u.d);
-#endif
-#endif
- }
- else
- {
- union { double d; int i[2]; } u;
- u.i[0] = CONST_DOUBLE_LOW (x); u.i[1] = CONST_DOUBLE_HIGH (x);
- PUT_IMMEDIATE_PREFIX (file);
-#ifdef SEQUENT_ASM
- /* We have no way of winning if we can't get the bits
- for a sequent floating point number. */
-#if HOST_FLOAT_FORMAT != TARGET_FLOAT_FORMAT
- abort ();
-#endif
- {
- union { float f; long l; } uu;
- uu.f = u.d;
- fprintf (file, "0Fx%08x", uu.l);
- }
-#else
- fprintf (file, "0f%.20e", u.d);
-#endif
- }
- }
- else
- {
- if (flag_pic
- && GET_CODE (x) == CONST
- && symbolic_reference_mentioned_p (x))
- {
- fprintf(stderr, "illegal constant for pic-mode: \n");
- print_rtl(stderr, x);
- fprintf(stderr, "\nGET_CODE (x) == %d, CONST == %d, symbolic_reference_mentioned_p (x) == %d\n",
- GET_CODE (x), CONST, symbolic_reference_mentioned_p(x));
- abort ();
- }
- else if (flag_pic
- && (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == LABEL_REF))
- {
- output_addr_const (file, x);
- fprintf (file, "(sb)");
- }
- else
- {
-#ifdef NO_IMMEDIATE_PREFIX_IF_SYMBOLIC
- if (GET_CODE (x) == CONST_INT)
-#endif
- PUT_IMMEDIATE_PREFIX (file);
- output_addr_const (file, x);
- }
- }
-}
-
-/* PRINT_OPERAND_ADDRESS is defined to call this function,
- which is easier to debug than putting all the code in
- a macro definition in ns32k.h . */
-
-/* Completely rewritten to get this to work with Gas for PC532 Mach.
- This function didn't work and I just wasn't able (nor very willing) to
- figure out how it worked.
- 90-11-25 Tatu Yl|nen <ylo@cs.hut.fi> */
-
-void
-print_operand_address (file, addr)
- register FILE *file;
- register rtx addr;
-{
- static char scales[] = { 'b', 'w', 'd', 0, 'q', };
- rtx offset, base, indexexp, tmp;
- int scale;
- extern int flag_pic;
-
- if (GET_CODE (addr) == PRE_DEC || GET_CODE (addr) == POST_DEC)
- {
- fprintf (file, "tos");
- return;
- }
-
- offset = NULL;
- base = NULL;
- indexexp = NULL;
- while (addr != NULL)
- {
- if (GET_CODE (addr) == PLUS)
- {
- if (GET_CODE (XEXP (addr, 0)) == PLUS)
- {
- tmp = XEXP (addr, 1);
- addr = XEXP (addr, 0);
- }
- else
- {
- tmp = XEXP (addr,0);
- addr = XEXP (addr,1);
- }
- }
- else
- {
- tmp = addr;
- addr = NULL;
- }
- switch (GET_CODE (tmp))
- {
- case PLUS:
- abort ();
- case MEM:
- if (base)
- {
- indexexp = base;
- base = tmp;
- }
- else
- base = tmp;
- break;
- case REG:
- if (REGNO (tmp) < F0_REGNUM)
- if (base)
- {
- indexexp = tmp;
- }
- else
- base = tmp;
- else
- if (base)
- {
- indexexp = base;
- base = tmp;
- }
- else
- base = tmp;
- break;
- case MULT:
- indexexp = tmp;
- break;
- case SYMBOL_REF:
- if (flag_pic && ! CONSTANT_POOL_ADDRESS_P (tmp)
- && ! SYMBOL_REF_FLAG (tmp))
- {
- if (base)
- {
- if (indexexp)
- abort ();
- indexexp = base;
- }
- base = tmp;
- break;
- }
- case CONST:
- if (flag_pic && GET_CODE (tmp) == CONST)
- {
- rtx sym, off, tmp1;
- tmp1 = XEXP (tmp,0);
- if (GET_CODE (tmp1) != PLUS)
- abort ();
-
- sym = XEXP (tmp1,0);
- if (GET_CODE (sym) != SYMBOL_REF)
- {
- off = sym;
- sym = XEXP (tmp1,1);
- }
- else
- off = XEXP (tmp1,1);
- if (GET_CODE (sym) == SYMBOL_REF)
- {
- if (GET_CODE (off) != CONST_INT)
- abort ();
-
- if (CONSTANT_POOL_ADDRESS_P (sym)
- || SYMBOL_REF_FLAG (sym))
- {
- SYMBOL_REF_FLAG (tmp) = 1;
- }
- else
- {
- if (base)
- {
- if (indexexp)
- abort ();
-
- indexexp = base;
- }
-
- if (offset != 0)
- abort ();
-
- base = sym;
- offset = off;
- break;
- }
- }
- }
- case CONST_INT:
- case LABEL_REF:
- if (offset)
- offset = gen_rtx (PLUS, SImode, tmp, offset);
- else
- offset = tmp;
- break;
- default:
- abort ();
- }
- }
- if (! offset)
- offset = const0_rtx;
-
- if (base
-#ifndef INDEX_RATHER_THAN_BASE
- && (flag_pic || TARGET_HIMEM)
- && GET_CODE (base) != SYMBOL_REF
- && GET_CODE (offset) != CONST_INT
-#else
- /* This is a re-implementation of the SEQUENT_ADDRESS_BUG fix. */
-#endif
- && !indexexp && GET_CODE (base) == REG
- && REG_OK_FOR_INDEX_P (base))
- {
- indexexp = base;
- base = NULL;
- }
-
- /* now, offset, base and indexexp are set */
-#ifndef BASE_REG_NEEDED
- if (! base)
- {
-#if defined (PC_RELATIVE) || defined (NO_ABSOLUTE_PREFIX_IF_SYMBOLIC)
- if (GET_CODE (offset) == CONST_INT)
-#endif
- PUT_ABSOLUTE_PREFIX (file);
- }
-#endif
-
- output_addr_const (file, offset);
- if (base) /* base can be (REG ...) or (MEM ...) */
- switch (GET_CODE (base))
- {
- /* now we must output base. Possible alternatives are:
- (rN) (REG ...)
- (sp) (REG ...)
- (fp) (REG ...)
- (pc) (REG ...) used for SYMBOL_REF and LABEL_REF, output
- (disp(fp)) (MEM ...) just before possible [rX:y]
- (disp(sp)) (MEM ...)
- (disp(sb)) (MEM ...)
- */
- case REG:
- fprintf (file, "(%s)", ns32k_out_reg_names[REGNO (base)]);
- break;
- case SYMBOL_REF:
- if (! flag_pic)
- abort ();
-
- fprintf (file, "(");
- output_addr_const (file, base);
- fprintf (file, "(sb))");
- break;
- case MEM:
- addr = XEXP(base,0);
- base = NULL;
- offset = NULL;
- while (addr != NULL)
- {
- if (GET_CODE (addr) == PLUS)
- {
- if (GET_CODE (XEXP (addr, 0)) == PLUS)
- {
- tmp = XEXP (addr, 1);
- addr = XEXP (addr, 0);
- }
- else
- {
- tmp = XEXP (addr, 0);
- addr = XEXP (addr, 1);
- }
- }
- else
- {
- tmp = addr;
- addr = NULL;
- }
- switch (GET_CODE (tmp))
- {
- case REG:
- base = tmp;
- break;
- case CONST:
- case CONST_INT:
- case SYMBOL_REF:
- case LABEL_REF:
- if (offset)
- offset = gen_rtx (PLUS, SImode, tmp, offset);
- else
- offset = tmp;
- break;
- default:
- abort ();
- }
- }
- if (! offset)
- offset = const0_rtx;
- fprintf (file, "(");
- output_addr_const (file, offset);
- if (base)
- fprintf (file, "(%s)", ns32k_out_reg_names[REGNO (base)]);
- else if (TARGET_SB)
- fprintf (file, "(sb)");
- else
- abort ();
- fprintf (file, ")");
- break;
- default:
- abort ();
- }
-#ifdef PC_RELATIVE
- else if (GET_CODE (offset) != CONST_INT)
- fprintf (file, "(pc)");
-#ifdef BASE_REG_NEEDED
- else if (TARGET_SB)
- fprintf (file, "(sb)");
- else
- abort ();
-#endif
-#endif /* PC_RELATIVE */
-
- /* now print index if we have one */
- if (indexexp)
- {
- if (GET_CODE (indexexp) == MULT)
- {
- scale = INTVAL (XEXP (indexexp, 1)) >> 1;
- indexexp = XEXP (indexexp, 0);
- }
- else
- scale = 0;
- if (GET_CODE (indexexp) != REG || REGNO (indexexp) >= F0_REGNUM)
- abort ();
-
-#ifdef UTEK_ASM
- fprintf (file, "[%c`%s]",
- scales[scale],
- ns32k_out_reg_names[REGNO (indexexp)]);
-#else
- fprintf (file, "[%s:%c]",
- ns32k_out_reg_names[REGNO (indexexp)],
- scales[scale]);
-#endif
- }
-}
-
-/* National 32032 shifting is so bad that we can get
- better performance in many common cases by using other
- techniques. */
-char *
-output_shift_insn (operands)
- rtx *operands;
-{
- if (GET_CODE (operands[2]) == CONST_INT
- && INTVAL (operands[2]) > 0
- && INTVAL (operands[2]) <= 3)
- if (GET_CODE (operands[0]) == REG)
- {
- if (GET_CODE (operands[1]) == REG)
- {
- if (REGNO (operands[0]) == REGNO (operands[1]))
- {
- if (operands[2] == const1_rtx)
- return "addd %0,%0";
- else if (INTVAL (operands[2]) == 2)
- return "addd %0,%0\n\taddd %0,%0";
- }
- if (operands[2] == const1_rtx)
- return "movd %1,%0\n\taddd %0,%0";
-
- operands[1] = gen_indexed_expr (const0_rtx, operands[1], operands[2]);
- return "addr %a1,%0";
- }
- if (operands[2] == const1_rtx)
- return "movd %1,%0\n\taddd %0,%0";
- }
- else if (GET_CODE (operands[1]) == REG)
- {
- operands[1] = gen_indexed_expr (const0_rtx, operands[1], operands[2]);
- return "addr %a1,%0";
- }
- else if (INTVAL (operands[2]) == 1
- && GET_CODE (operands[1]) == MEM
- && rtx_equal_p (operands [0], operands[1]))
- {
- rtx temp = XEXP (operands[1], 0);
-
- if (GET_CODE (temp) == REG
- || (GET_CODE (temp) == PLUS
- && GET_CODE (XEXP (temp, 0)) == REG
- && GET_CODE (XEXP (temp, 1)) == CONST_INT))
- return "addd %0,%0";
- }
- else return "ashd %2,%0";
- return "ashd %2,%0";
-}
-
-char *
-output_move_dconst (n, s)
- int n;
- char *s;
-{
- static char r[32];
-
- if (n > -9 && n < 8)
- strcpy (r, "movqd ");
- else if (n > 0 && n < 256)
- strcpy (r, "movzbd ");
- else if (n > 0 && n < 65536)
- strcpy (r, "movzwd ");
- else if (n < 0 && n > -129)
- strcpy (r, "movxbd ");
- else if (n < 0 && n > -32769)
- strcpy (r, "movxwd ");
- else
- strcpy (r, "movd ");
- strcat (r, s);
- return r;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-27 18:30:40 +0000