/* Subroutines for insn-output.c for Motorola 68000 family.
- Copyright (C) 1987, 93-99, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001, 2003, 2004
+ Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC 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,
+GCC 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
+along with GCC; 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 "coretypes.h"
+#include "tm.h"
#include "tree.h"
#include "rtl.h"
#include "function.h"
#include "real.h"
#include "insn-config.h"
#include "conditions.h"
-#include "insn-flags.h"
#include "output.h"
#include "insn-attr.h"
#include "recog.h"
#include "toplev.h"
+#include "expr.h"
+#include "reload.h"
#include "tm_p.h"
-
-/* Needed for use_return_insn. */
+#include "target.h"
+#include "target-def.h"
+#include "debug.h"
#include "flags.h"
-#ifdef SUPPORT_SUN_FPA
+enum reg_class regno_reg_class[] =
+{
+ DATA_REGS, DATA_REGS, DATA_REGS, DATA_REGS,
+ DATA_REGS, DATA_REGS, DATA_REGS, DATA_REGS,
+ ADDR_REGS, ADDR_REGS, ADDR_REGS, ADDR_REGS,
+ ADDR_REGS, ADDR_REGS, ADDR_REGS, ADDR_REGS,
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
+ ADDR_REGS
+};
+
-/* Index into this array by (register number >> 3) to find the
- smallest class which contains that register. */
-enum reg_class regno_reg_class[]
- = { DATA_REGS, ADDR_REGS, FP_REGS,
- LO_FPA_REGS, LO_FPA_REGS, FPA_REGS, FPA_REGS };
+/* The ASM_DOT macro allows easy string pasting to handle the differences
+ between MOTOROLA and MIT syntaxes in asm_fprintf(), which doesn't
+ support the %. option. */
+#if MOTOROLA
+# define ASM_DOT "."
+# define ASM_DOTW ".w"
+# define ASM_DOTL ".l"
+#else
+# define ASM_DOT ""
+# define ASM_DOTW ""
+# define ASM_DOTL ""
+#endif
-#endif /* defined SUPPORT_SUN_FPA */
-/* This flag is used to communicate between movhi and ASM_OUTPUT_CASE_END,
- if SGS_SWITCH_TABLE. */
-int switch_table_difference_label_flag;
+/* Structure describing stack frame layout. */
+struct m68k_frame
+{
+ /* Stack pointer to frame pointer offset. */
+ HOST_WIDE_INT offset;
+
+ /* Offset of FPU registers. */
+ HOST_WIDE_INT foffset;
-static rtx find_addr_reg PARAMS ((rtx));
-rtx legitimize_pic_address PARAMS ((rtx, enum machine_mode, rtx));
-static const char *singlemove_string PARAMS ((rtx *));
+ /* Frame size in bytes (rounded up). */
+ HOST_WIDE_INT size;
+
+ /* Data and address register. */
+ int reg_no;
+ unsigned int reg_mask;
+ unsigned int reg_rev_mask;
+
+ /* FPU registers. */
+ int fpu_no;
+ unsigned int fpu_mask;
+ unsigned int fpu_rev_mask;
+
+ /* Offsets relative to ARG_POINTER. */
+ HOST_WIDE_INT frame_pointer_offset;
+ HOST_WIDE_INT stack_pointer_offset;
+
+ /* Function which the above information refers to. */
+ int funcdef_no;
+};
+
+/* Current frame information calculated by m68k_compute_frame_layout(). */
+static struct m68k_frame current_frame;
+
+static rtx find_addr_reg (rtx);
+static const char *singlemove_string (rtx *);
+static void m68k_output_function_prologue (FILE *, HOST_WIDE_INT);
+static void m68k_output_function_epilogue (FILE *, HOST_WIDE_INT);
+#ifdef M68K_TARGET_COFF
+static void m68k_coff_asm_named_section (const char *, unsigned int);
+#endif /* M68K_TARGET_COFF */
+static void m68k_output_mi_thunk (FILE *, tree, HOST_WIDE_INT,
+ HOST_WIDE_INT, tree);
+static rtx m68k_struct_value_rtx (tree, int);
+static bool m68k_interrupt_function_p (tree func);
+static tree m68k_handle_fndecl_attribute (tree *node, tree name,
+ tree args, int flags,
+ bool *no_add_attrs);
+static void m68k_compute_frame_layout (void);
+static bool m68k_save_reg (unsigned int regno, bool interrupt_handler);
+static int const_int_cost (rtx);
+static bool m68k_rtx_costs (rtx, int, int, int *);
\f
-/* Alignment to use for loops and jumps */
-/* Specify power of two alignment used for loops. */
-const char *m68k_align_loops_string;
-/* Specify power of two alignment used for non-loop jumps. */
-const char *m68k_align_jumps_string;
-/* Specify power of two alignment used for functions. */
-const char *m68k_align_funcs_string;
-
-/* Specify power of two alignment used for loops. */
-int m68k_align_loops;
-/* Specify power of two alignment used for non-loop jumps. */
-int m68k_align_jumps;
-/* Specify power of two alignment used for functions. */
-int m68k_align_funcs;
+/* Specify the identification number of the library being built */
+const char *m68k_library_id_string;
/* Nonzero if the last compare/test insn had FP operands. The
sCC expanders peek at this to determine what to do for the
68060, which has no fsCC instructions. */
int m68k_last_compare_had_fp_operands;
+\f
+/* Initialize the GCC target structure. */
+
+#if INT_OP_GROUP == INT_OP_DOT_WORD
+#undef TARGET_ASM_ALIGNED_HI_OP
+#define TARGET_ASM_ALIGNED_HI_OP "\t.word\t"
+#endif
+
+#if INT_OP_GROUP == INT_OP_NO_DOT
+#undef TARGET_ASM_BYTE_OP
+#define TARGET_ASM_BYTE_OP "\tbyte\t"
+#undef TARGET_ASM_ALIGNED_HI_OP
+#define TARGET_ASM_ALIGNED_HI_OP "\tshort\t"
+#undef TARGET_ASM_ALIGNED_SI_OP
+#define TARGET_ASM_ALIGNED_SI_OP "\tlong\t"
+#endif
+
+#if INT_OP_GROUP == INT_OP_DC
+#undef TARGET_ASM_BYTE_OP
+#define TARGET_ASM_BYTE_OP "\tdc.b\t"
+#undef TARGET_ASM_ALIGNED_HI_OP
+#define TARGET_ASM_ALIGNED_HI_OP "\tdc.w\t"
+#undef TARGET_ASM_ALIGNED_SI_OP
+#define TARGET_ASM_ALIGNED_SI_OP "\tdc.l\t"
+#endif
+
+#undef TARGET_ASM_UNALIGNED_HI_OP
+#define TARGET_ASM_UNALIGNED_HI_OP TARGET_ASM_ALIGNED_HI_OP
+#undef TARGET_ASM_UNALIGNED_SI_OP
+#define TARGET_ASM_UNALIGNED_SI_OP TARGET_ASM_ALIGNED_SI_OP
+
+#undef TARGET_ASM_FUNCTION_PROLOGUE
+#define TARGET_ASM_FUNCTION_PROLOGUE m68k_output_function_prologue
+#undef TARGET_ASM_FUNCTION_EPILOGUE
+#define TARGET_ASM_FUNCTION_EPILOGUE m68k_output_function_epilogue
+
+#undef TARGET_ASM_OUTPUT_MI_THUNK
+#define TARGET_ASM_OUTPUT_MI_THUNK m68k_output_mi_thunk
+#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
+#define TARGET_ASM_CAN_OUTPUT_MI_THUNK default_can_output_mi_thunk_no_vcall
+
+#undef TARGET_ASM_FILE_START_APP_OFF
+#define TARGET_ASM_FILE_START_APP_OFF true
+
+#undef TARGET_RTX_COSTS
+#define TARGET_RTX_COSTS m68k_rtx_costs
+
+#undef TARGET_ATTRIBUTE_TABLE
+#define TARGET_ATTRIBUTE_TABLE m68k_attribute_table
+
+#undef TARGET_PROMOTE_PROTOTYPES
+#define TARGET_PROMOTE_PROTOTYPES hook_bool_tree_true
+
+#undef TARGET_STRUCT_VALUE_RTX
+#define TARGET_STRUCT_VALUE_RTX m68k_struct_value_rtx
+static const struct attribute_spec m68k_attribute_table[] =
+{
+ /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */
+ { "interrupt_handler", 0, 0, true, false, false, m68k_handle_fndecl_attribute },
+ { NULL, 0, 0, false, false, false, NULL }
+};
+
+struct gcc_target targetm = TARGET_INITIALIZER;
+\f
/* Sometimes certain combinations of command options do not make
sense on a particular target machine. You can define a macro
`OVERRIDE_OPTIONS' to take account of this. This macro, if
`-O'. That is what `OPTIMIZATION_OPTIONS' is for. */
void
-override_options ()
+override_options (void)
{
- int def_align;
+ /* Library identification */
+ if (m68k_library_id_string)
+ {
+ int id;
- def_align = 1;
+ if (! TARGET_ID_SHARED_LIBRARY)
+ error ("-mshared-library-id= specified without -mid-shared-library");
+ id = atoi (m68k_library_id_string);
+ if (id < 0 || id > MAX_LIBRARY_ID)
+ error ("-mshared-library-id=%d is not between 0 and %d", id, MAX_LIBRARY_ID);
- /* Validate -malign-loops= value, or provide default */
- if (m68k_align_loops_string)
- {
- m68k_align_loops = atoi (m68k_align_loops_string);
- if (m68k_align_loops < 1 || m68k_align_loops > MAX_CODE_ALIGN)
- fatal ("-malign-loops=%d is not between 1 and %d",
- m68k_align_loops, MAX_CODE_ALIGN);
+ /* From now on, m68k_library_id_string will contain the library offset. */
+ asprintf ((char **)&m68k_library_id_string, "%d", (id * -4) - 4);
}
else
- m68k_align_loops = def_align;
+ /* If TARGET_ID_SHARED_LIBRARY is enabled, this will point to the
+ current library. */
+ m68k_library_id_string = "_current_shared_library_a5_offset_";
+
+ /* Sanity check to ensure that msep-data and mid-sahred-library are not
+ * both specified together. Doing so simply doesn't make sense.
+ */
+ if (TARGET_SEP_DATA && TARGET_ID_SHARED_LIBRARY)
+ error ("cannot specify both -msep-data and -mid-shared-library");
- /* Validate -malign-jumps= value, or provide default */
- if (m68k_align_jumps_string)
+ /* If we're generating code for a separate A5 relative data segment,
+ * we've got to enable -fPIC as well. This might be relaxable to
+ * -fpic but it hasn't been tested properly.
+ */
+ if (TARGET_SEP_DATA || TARGET_ID_SHARED_LIBRARY)
+ flag_pic = 2;
+
+ /* -fPIC uses 32-bit pc-relative displacements, which don't exist
+ until the 68020. */
+ if (!TARGET_68020 && !TARGET_COLDFIRE && (flag_pic == 2))
+ error("-fPIC is not currently supported on the 68000 or 68010\n");
+
+ /* ??? A historic way of turning on pic, or is this intended to
+ be an embedded thing that doesn't have the same name binding
+ significance that it does on hosted ELF systems? */
+ if (TARGET_PCREL && flag_pic == 0)
+ flag_pic = 1;
+
+ /* Turn off function cse if we are doing PIC. We always want function call
+ to be done as `bsr foo@PLTPC', so it will force the assembler to create
+ the PLT entry for `foo'. Doing function cse will cause the address of
+ `foo' to be loaded into a register, which is exactly what we want to
+ avoid when we are doing PIC on svr4 m68k. */
+ if (flag_pic)
+ flag_no_function_cse = 1;
+
+ SUBTARGET_OVERRIDE_OPTIONS;
+}
+\f
+/* Return nonzero if FUNC is an interrupt function as specified by the
+ "interrupt_handler" attribute. */
+static bool
+m68k_interrupt_function_p(tree func)
+{
+ tree a;
+
+ if (TREE_CODE (func) != FUNCTION_DECL)
+ return false;
+
+ a = lookup_attribute ("interrupt_handler", DECL_ATTRIBUTES (func));
+ return (a != NULL_TREE);
+}
+
+/* Handle an attribute requiring a FUNCTION_DECL; arguments as in
+ struct attribute_spec.handler. */
+static tree
+m68k_handle_fndecl_attribute (tree *node, tree name,
+ tree args ATTRIBUTE_UNUSED,
+ int flags ATTRIBUTE_UNUSED,
+ bool *no_add_attrs)
+{
+ if (TREE_CODE (*node) != FUNCTION_DECL)
{
- m68k_align_jumps = atoi (m68k_align_jumps_string);
- if (m68k_align_jumps < 1 || m68k_align_jumps > MAX_CODE_ALIGN)
- fatal ("-malign-jumps=%d is not between 1 and %d",
- m68k_align_jumps, MAX_CODE_ALIGN);
+ warning ("`%s' attribute only applies to functions",
+ IDENTIFIER_POINTER (name));
+ *no_add_attrs = true;
}
- else
- m68k_align_jumps = def_align;
- /* Validate -malign-functions= value, or provide default */
- if (m68k_align_funcs_string)
+ return NULL_TREE;
+}
+
+static void
+m68k_compute_frame_layout (void)
+{
+ int regno, saved;
+ unsigned int mask, rmask;
+ bool interrupt_handler = m68k_interrupt_function_p (current_function_decl);
+
+ /* Only compute the frame once per function.
+ Don't cache information until reload has been completed. */
+ if (current_frame.funcdef_no == current_function_funcdef_no
+ && reload_completed)
+ return;
+
+ current_frame.size = (get_frame_size () + 3) & -4;
+
+ mask = rmask = saved = 0;
+ for (regno = 0; regno < 16; regno++)
+ if (m68k_save_reg (regno, interrupt_handler))
+ {
+ mask |= 1 << regno;
+ rmask |= 1 << (15 - regno);
+ saved++;
+ }
+ current_frame.offset = saved * 4;
+ current_frame.reg_no = saved;
+ current_frame.reg_mask = mask;
+ current_frame.reg_rev_mask = rmask;
+
+ current_frame.foffset = 0;
+ mask = rmask = saved = 0;
+ if (TARGET_68881 /* || TARGET_CFV4E */)
{
- m68k_align_funcs = atoi (m68k_align_funcs_string);
- if (m68k_align_funcs < 1 || m68k_align_funcs > MAX_CODE_ALIGN)
- fatal ("-malign-functions=%d is not between 1 and %d",
- m68k_align_funcs, MAX_CODE_ALIGN);
+ for (regno = 16; regno < 24; regno++)
+ if (m68k_save_reg (regno, interrupt_handler))
+ {
+ mask |= 1 << (regno - 16);
+ rmask |= 1 << (23 - regno);
+ saved++;
+ }
+ current_frame.foffset = saved * 12 /* (TARGET_CFV4E ? 8 : 12) */;
+ current_frame.offset += current_frame.foffset;
}
- else
- m68k_align_funcs = def_align;
+ current_frame.fpu_no = saved;
+ current_frame.fpu_mask = mask;
+ current_frame.fpu_rev_mask = rmask;
+
+ /* Remember what function this frame refers to. */
+ current_frame.funcdef_no = current_function_funcdef_no;
}
-\f
-/* This function generates the assembly code for function entry.
- STREAM 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
+
+HOST_WIDE_INT
+m68k_initial_elimination_offset (int from, int to)
+{
+ /* FIXME: The correct offset to compute here would appear to be
+ (frame_pointer_needed ? -UNITS_PER_WORD * 2 : -UNITS_PER_WORD);
+ but for some obscure reason, this must be 0 to get correct code. */
+ if (from == ARG_POINTER_REGNUM && to == FRAME_POINTER_REGNUM)
+ return 0;
+
+ m68k_compute_frame_layout ();
+
+ if (from == ARG_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
+ return current_frame.offset + current_frame.size + (frame_pointer_needed ? -UNITS_PER_WORD * 2 : -UNITS_PER_WORD);
+ else if (from == FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
+ return current_frame.offset + current_frame.size;
+
+ abort();
+}
+
+/* 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. */
+ knowing which registers should not be saved even if used.
+ Return true if we need to save REGNO. */
+
+static bool
+m68k_save_reg (unsigned int regno, bool interrupt_handler)
+{
+ if (flag_pic && current_function_uses_pic_offset_table
+ && regno == PIC_OFFSET_TABLE_REGNUM)
+ return true;
+
+ if (current_function_calls_eh_return)
+ {
+ unsigned int i;
+ for (i = 0; ; i++)
+ {
+ unsigned int test = EH_RETURN_DATA_REGNO (i);
+ if (test == INVALID_REGNUM)
+ break;
+ if (test == regno)
+ return true;
+ }
+ }
+ /* Fixed regs we never touch. */
+ if (fixed_regs[regno])
+ return false;
-/* Note that the order of the bit mask for fmovem is the opposite
- of the order for movem! */
+ /* The frame pointer (if it is such) is handled specially. */
+ if (regno == FRAME_POINTER_REGNUM && frame_pointer_needed)
+ return false;
+ /* Interrupt handlers must also save call_used_regs
+ if they are live or when calling nested functions. */
+ if (interrupt_handler)
+ {
+ if (regs_ever_live[regno])
+ return true;
-void
-output_function_prologue (stream, size)
- FILE *stream;
- int size;
+ if (!current_function_is_leaf && call_used_regs[regno])
+ return true;
+ }
+
+ /* Never need to save registers that aren't touched. */
+ if (!regs_ever_live[regno])
+ return false;
+
+ /* Otherwise save everything that isn't call-clobbered. */
+ return !call_used_regs[regno];
+}
+
+/* This function generates the assembly code for function entry.
+ STREAM is a stdio stream to output the code to.
+ SIZE is an int: how many units of temporary storage to allocate. */
+
+static void
+m68k_output_function_prologue (FILE *stream, HOST_WIDE_INT size ATTRIBUTE_UNUSED)
{
- register int regno;
- register int mask = 0;
- int num_saved_regs = 0;
- extern char call_used_regs[];
- int fsize = (size + 3) & -4;
- int cfa_offset = INCOMING_FRAME_SP_OFFSET, cfa_store_offset = cfa_offset;
-
+ HOST_WIDE_INT fsize_with_regs;
+ HOST_WIDE_INT cfa_offset = INCOMING_FRAME_SP_OFFSET;
+
+ m68k_compute_frame_layout();
+
/* If the stack limit is a symbol, we can check it here,
before actually allocating the space. */
if (current_function_limit_stack
&& GET_CODE (stack_limit_rtx) == SYMBOL_REF)
- {
-#if defined (MOTOROLA)
- asm_fprintf (stream, "\tcmp.l %0I%s+%d,%Rsp\n\ttrapcs\n",
- XSTR (stack_limit_rtx, 0), fsize + 4);
-#else
- asm_fprintf (stream, "\tcmpl %0I%s+%d,%Rsp\n\ttrapcs\n",
- XSTR (stack_limit_rtx, 0), fsize + 4);
-#endif
- }
+ asm_fprintf (stream, "\tcmp" ASM_DOT "l %I%s+%wd,%Rsp\n\ttrapcs\n",
+ XSTR (stack_limit_rtx, 0), current_frame.size + 4);
+
+ /* On ColdFire add register save into initial stack frame setup, if possible. */
+ fsize_with_regs = current_frame.size;
+ if (TARGET_COLDFIRE && current_frame.reg_no > 2)
+ fsize_with_regs += current_frame.reg_no * 4;
if (frame_pointer_needed)
{
- if (fsize == 0 && TARGET_68040)
- {
+ if (current_frame.size == 0 && TARGET_68040)
/* on the 68040, pea + move is faster than link.w 0 */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tpea (%s)\n\tmove.l %s,%s\n",
- reg_names[FRAME_POINTER_REGNUM], reg_names[STACK_POINTER_REGNUM],
- reg_names[FRAME_POINTER_REGNUM]);
-#else
- asm_fprintf (stream, "\tpea %s@\n\tmovel %s,%s\n",
- reg_names[FRAME_POINTER_REGNUM], reg_names[STACK_POINTER_REGNUM],
- reg_names[FRAME_POINTER_REGNUM]);
-#endif
- }
- else if (fsize < 0x8000)
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tlink.w %s,%0I%d\n",
- reg_names[FRAME_POINTER_REGNUM], -fsize);
-#else
- asm_fprintf (stream, "\tlink %s,%0I%d\n",
- reg_names[FRAME_POINTER_REGNUM], -fsize);
-#endif
- }
+ fprintf (stream, MOTOROLA ?
+ "\tpea (%s)\n\tmove.l %s,%s\n" :
+ "\tpea %s@\n\tmovel %s,%s\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ M68K_REGNAME(STACK_POINTER_REGNUM),
+ M68K_REGNAME(FRAME_POINTER_REGNUM));
+ else if (fsize_with_regs < 0x8000)
+ asm_fprintf (stream, "\tlink" ASM_DOTW " %s,%I%wd\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM), -fsize_with_regs);
else if (TARGET_68020)
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tlink.l %s,%0I%d\n",
- reg_names[FRAME_POINTER_REGNUM], -fsize);
-#else
- asm_fprintf (stream, "\tlink %s,%0I%d\n",
- reg_names[FRAME_POINTER_REGNUM], -fsize);
-#endif
- }
+ asm_fprintf (stream, "\tlink" ASM_DOTL " %s,%I%wd\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM), -fsize_with_regs);
else
- {
- /* Adding negative number is faster on the 68040. */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tlink.w %s,%0I0\n\tadd.l %0I%d,%Rsp\n",
- reg_names[FRAME_POINTER_REGNUM], -fsize);
-#else
- asm_fprintf (stream, "\tlink %s,%0I0\n\taddl %0I%d,%Rsp\n",
- reg_names[FRAME_POINTER_REGNUM], -fsize);
-#endif
- }
+ /* Adding negative number is faster on the 68040. */
+ asm_fprintf (stream, "\tlink" ASM_DOTW " %s,%I0\n"
+ "\tadd" ASM_DOT "l %I%wd,%Rsp\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM), -fsize_with_regs);
+
if (dwarf2out_do_frame ())
{
char *l;
- l = (char *) dwarf2out_cfi_label ();
- cfa_store_offset += 4;
- cfa_offset = cfa_store_offset;
+ l = (char *) dwarf2out_cfi_label ();
+ cfa_offset += 4;
+ dwarf2out_reg_save (l, FRAME_POINTER_REGNUM, -cfa_offset);
dwarf2out_def_cfa (l, FRAME_POINTER_REGNUM, cfa_offset);
- dwarf2out_reg_save (l, FRAME_POINTER_REGNUM, -cfa_store_offset);
- cfa_store_offset += fsize;
+ cfa_offset += current_frame.size;
}
}
- else if (fsize)
+ else if (fsize_with_regs) /* !frame_pointer_needed */
{
- if (fsize + 4 < 0x8000)
+ if (fsize_with_regs < 0x8000)
{
-#ifndef NO_ADDSUB_Q
- if (fsize + 4 <= 8)
+ if (fsize_with_regs <= 8)
{
- if (!TARGET_5200)
- {
- /* asm_fprintf() cannot handle %. */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tsubq.w %0I%d,%Rsp\n", fsize + 4);
-#else
- asm_fprintf (stream, "\tsubqw %0I%d,%Rsp\n", fsize + 4);
-#endif
- }
+ if (!TARGET_COLDFIRE)
+ asm_fprintf (stream, "\tsubq" ASM_DOT "w %I%wd,%Rsp\n",
+ fsize_with_regs);
else
- {
- /* asm_fprintf() cannot handle %. */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tsubq.l %0I%d,%Rsp\n", fsize + 4);
-#else
- asm_fprintf (stream, "\tsubql %0I%d,%Rsp\n", fsize + 4);
-#endif
- }
- }
- else if (fsize + 4 <= 16 && TARGET_CPU32)
- {
- /* On the CPU32 it is faster to use two subqw instructions to
- subtract a small integer (8 < N <= 16) to a register. */
- /* asm_fprintf() cannot handle %. */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tsubq.w %0I8,%Rsp\n\tsubq.w %0I%d,%Rsp\n",
- fsize + 4 - 8);
-#else
- asm_fprintf (stream, "\tsubqw %0I8,%Rsp\n\tsubqw %0I%d,%Rsp\n",
- fsize + 4 - 8);
-#endif
- }
- else
-#endif /* not NO_ADDSUB_Q */
- if (TARGET_68040)
- {
- /* Adding negative number is faster on the 68040. */
- /* asm_fprintf() cannot handle %. */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tadd.w %0I%d,%Rsp\n", - (fsize + 4));
-#else
- asm_fprintf (stream, "\taddw %0I%d,%Rsp\n", - (fsize + 4));
-#endif
+ asm_fprintf (stream, "\tsubq" ASM_DOT "l %I%wd,%Rsp\n",
+ fsize_with_regs);
}
+ else if (fsize_with_regs <= 16 && TARGET_CPU32)
+ /* On the CPU32 it is faster to use two subqw instructions to
+ subtract a small integer (8 < N <= 16) to a register. */
+ asm_fprintf (stream,
+ "\tsubq" ASM_DOT "w %I8,%Rsp\n"
+ "\tsubq" ASM_DOT "w %I%wd,%Rsp\n",
+ fsize_with_regs - 8);
+ else if (TARGET_68040)
+ /* Adding negative number is faster on the 68040. */
+ asm_fprintf (stream, "\tadd" ASM_DOT "w %I%wd,%Rsp\n",
+ -fsize_with_regs);
else
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tlea (%d,%Rsp),%Rsp\n", - (fsize + 4));
-#else
- asm_fprintf (stream, "\tlea %Rsp@(%d),%Rsp\n", - (fsize + 4));
-#endif
- }
- }
- else
- {
- /* asm_fprintf() cannot handle %. */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tadd.l %0I%d,%Rsp\n", - (fsize + 4));
-#else
- asm_fprintf (stream, "\taddl %0I%d,%Rsp\n", - (fsize + 4));
-#endif
+ asm_fprintf (stream, MOTOROLA ?
+ "\tlea (%wd,%Rsp),%Rsp\n" :
+ "\tlea %Rsp@(%wd),%Rsp\n",
+ -fsize_with_regs);
}
+ else /* fsize_with_regs >= 0x8000 */
+ asm_fprintf (stream, "\tadd" ASM_DOT "l %I%wd,%Rsp\n", -fsize_with_regs);
+
if (dwarf2out_do_frame ())
{
- cfa_store_offset += fsize;
- cfa_offset = cfa_store_offset;
+ cfa_offset += current_frame.size + 4;
dwarf2out_def_cfa ("", STACK_POINTER_REGNUM, cfa_offset);
}
- }
-#ifdef SUPPORT_SUN_FPA
- for (regno = 24; regno < 56; regno++)
- if (regs_ever_live[regno] && ! call_used_regs[regno])
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tfpmovd %s,-(%Rsp)\n",
- reg_names[regno]);
-#else
- asm_fprintf (stream, "\tfpmoved %s,%Rsp@-\n",
- reg_names[regno]);
-#endif
- if (dwarf2out_do_frame ())
- {
- char *l = dwarf2out_cfi_label ();
+ } /* !frame_pointer_needed */
- cfa_store_offset += 8;
- if (! frame_pointer_needed)
- {
- cfa_offset = cfa_store_offset;
- dwarf2out_def_cfa (l, STACK_POINTER_REGNUM, cfa_offset);
- }
- dwarf2out_reg_save (l, regno, -cfa_store_offset);
- }
- }
-#endif
- if (TARGET_68881)
+ if (current_frame.fpu_mask)
{
- for (regno = 16; regno < 24; regno++)
- if (regs_ever_live[regno] && ! call_used_regs[regno])
- {
- mask |= 1 << (regno - 16);
- num_saved_regs++;
- }
- if ((mask & 0xff) != 0)
+ asm_fprintf (stream, MOTOROLA ?
+ "\tfmovm %I0x%x,-(%Rsp)\n" :
+ "\tfmovem %I0x%x,%Rsp@-\n",
+ current_frame.fpu_mask);
+
+ if (dwarf2out_do_frame ())
{
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tfmovm %0I0x%x,-(%Rsp)\n", mask & 0xff);
-#else
- asm_fprintf (stream, "\tfmovem %0I0x%x,%Rsp@-\n", mask & 0xff);
-#endif
- if (dwarf2out_do_frame ())
- {
- char *l = (char *) dwarf2out_cfi_label ();
- int n_regs;
+ char *l = (char *) dwarf2out_cfi_label ();
+ int n_regs, regno;
- cfa_store_offset += num_saved_regs * 12;
- if (! frame_pointer_needed)
- {
- cfa_offset = cfa_store_offset;
- dwarf2out_def_cfa (l, STACK_POINTER_REGNUM, cfa_offset);
- }
- for (regno = 16, n_regs = 0; regno < 24; regno++)
- if (mask & (1 << (regno - 16)))
- dwarf2out_reg_save (l, regno,
- -cfa_store_offset + n_regs++ * 12);
- }
+ cfa_offset += current_frame.fpu_no * 12;
+ if (! frame_pointer_needed)
+ dwarf2out_def_cfa (l, STACK_POINTER_REGNUM, cfa_offset);
+ for (regno = 16, n_regs = 0; regno < 24; regno++)
+ if (current_frame.fpu_mask & (1 << (regno - 16)))
+ dwarf2out_reg_save (l, regno, -cfa_offset + n_regs++ * 12);
}
- mask = 0;
- num_saved_regs = 0;
- }
- for (regno = 0; regno < 16; regno++)
- if (regs_ever_live[regno] && ! call_used_regs[regno])
- {
- mask |= 1 << (15 - regno);
- num_saved_regs++;
- }
- if (frame_pointer_needed)
- {
- mask &= ~ (1 << (15 - FRAME_POINTER_REGNUM));
- num_saved_regs--;
- }
- if (flag_pic && current_function_uses_pic_offset_table)
- {
- mask |= 1 << (15 - PIC_OFFSET_TABLE_REGNUM);
- num_saved_regs++;
}
-#if NEED_PROBE
-#ifdef MOTOROLA
-#ifdef CRDS
- asm_fprintf (stream, "\ttstl %d(%Rsp)\n", NEED_PROBE - num_saved_regs * 4);
-#else
- asm_fprintf (stream, "\ttst.l %d(%Rsp)\n", NEED_PROBE - num_saved_regs * 4);
-#endif
-#else
- asm_fprintf (stream, "\ttstl %Rsp@(%d)\n", NEED_PROBE - num_saved_regs * 4);
-#endif
-#endif
-
- /* If the stack limit is not a symbol, check it here.
+ /* If the stack limit is not a symbol, check it here.
This has the disadvantage that it may be too late... */
if (current_function_limit_stack)
{
if (REG_P (stack_limit_rtx))
- {
-#if defined (MOTOROLA)
- asm_fprintf (stream, "\tcmp.l %s,%Rsp\n\ttrapcs\n",
- reg_names[REGNO (stack_limit_rtx)]);
-#else
- asm_fprintf (stream, "\tcmpl %s,%Rsp\n\ttrapcs\n",
- reg_names[REGNO (stack_limit_rtx)]);
-#endif
- }
+ asm_fprintf (stream, "\tcmp" ASM_DOT "l %s,%Rsp\n\ttrapcs\n",
+ M68K_REGNAME(REGNO (stack_limit_rtx)));
else if (GET_CODE (stack_limit_rtx) != SYMBOL_REF)
warning ("stack limit expression is not supported");
}
-
- if (num_saved_regs <= 2)
+
+ if (current_frame.reg_no <= 2)
{
/* Store each separately in the same order moveml uses.
Using two movel instructions instead of a single moveml
is about 15% faster for the 68020 and 68030 at no expense
- in code size */
+ in code size. */
int i;
- /* Undo the work from above. */
- for (i = 0; i< 16; i++)
- if (mask & (1 << i))
+ for (i = 0; i < 16; i++)
+ if (current_frame.reg_rev_mask & (1 << i))
{
- asm_fprintf (stream,
-#ifdef MOTOROLA
- "\t%Omove.l %s,-(%Rsp)\n",
-#else
- "\tmovel %s,%Rsp@-\n",
-#endif
- reg_names[15 - i]);
+ asm_fprintf (stream, MOTOROLA ?
+ "\t%Omove.l %s,-(%Rsp)\n" :
+ "\tmovel %s,%Rsp@-\n",
+ M68K_REGNAME(15 - i));
if (dwarf2out_do_frame ())
{
char *l = (char *) dwarf2out_cfi_label ();
- cfa_store_offset += 4;
- if (! frame_pointer_needed)
- {
- cfa_offset = cfa_store_offset;
- dwarf2out_def_cfa (l, STACK_POINTER_REGNUM, cfa_offset);
- }
- dwarf2out_reg_save (l, 15 - i, -cfa_store_offset);
+ cfa_offset += 4;
+ if (! frame_pointer_needed)
+ dwarf2out_def_cfa (l, STACK_POINTER_REGNUM, cfa_offset);
+ dwarf2out_reg_save (l, 15 - i, -cfa_offset);
}
}
}
- else if (mask)
+ else if (current_frame.reg_rev_mask)
{
- if (TARGET_5200)
- {
- /* The coldfire does not support the predecrement form of the
- movml instruction, so we must adjust the stack pointer and
- then use the plain address register indirect mode. We also
- have to invert the register save mask to use the new mode.
-
- FIXME: if num_saved_regs was calculated earlier, we could
- combine the stack pointer adjustment with any adjustment
- done when the initial stack frame is created. This would
- save an instruction */
-
- int newmask = 0;
- int i;
-
- for (i = 0; i < 16; i++)
- if (mask & (1 << i))
- newmask |= (1 << (15-i));
-
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tlea (%d,%Rsp),%Rsp\n", -num_saved_regs*4);
- asm_fprintf (stream, "\tmovm.l %0I0x%x,(%Rsp)\n", newmask);
-#else
- asm_fprintf (stream, "\tlea %Rsp@(%d),%Rsp\n", -num_saved_regs*4);
- asm_fprintf (stream, "\tmoveml %0I0x%x,%Rsp@\n", newmask);
-#endif
- }
+ if (TARGET_COLDFIRE)
+ /* The ColdFire does not support the predecrement form of the
+ MOVEM instruction, so we must adjust the stack pointer and
+ then use the plain address register indirect mode.
+ The required register save space was combined earlier with
+ the fsize_with_regs amount. */
+
+ asm_fprintf (stream, MOTOROLA ?
+ "\tmovm.l %I0x%x,(%Rsp)\n" :
+ "\tmoveml %I0x%x,%Rsp@\n",
+ current_frame.reg_mask);
else
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tmovm.l %0I0x%x,-(%Rsp)\n", mask);
-#else
- asm_fprintf (stream, "\tmoveml %0I0x%x,%Rsp@-\n", mask);
-#endif
- }
+ asm_fprintf (stream, MOTOROLA ?
+ "\tmovm.l %I0x%x,-(%Rsp)\n" :
+ "\tmoveml %I0x%x,%Rsp@-\n",
+ current_frame.reg_rev_mask);
if (dwarf2out_do_frame ())
{
char *l = (char *) dwarf2out_cfi_label ();
- int n_regs;
+ int n_regs, regno;
- cfa_store_offset += num_saved_regs * 4;
+ cfa_offset += current_frame.reg_no * 4;
if (! frame_pointer_needed)
- {
- cfa_offset = cfa_store_offset;
- dwarf2out_def_cfa (l, STACK_POINTER_REGNUM, cfa_offset);
- }
+ dwarf2out_def_cfa (l, STACK_POINTER_REGNUM, cfa_offset);
for (regno = 0, n_regs = 0; regno < 16; regno++)
- if (mask & (1 << (15 - regno)))
- dwarf2out_reg_save (l, regno,
- -cfa_store_offset + n_regs++ * 4);
+ if (current_frame.reg_mask & (1 << regno))
+ dwarf2out_reg_save (l, regno, -cfa_offset + n_regs++ * 4);
}
}
- if (flag_pic && current_function_uses_pic_offset_table)
+ if (!TARGET_SEP_DATA && flag_pic &&
+ (current_function_uses_pic_offset_table ||
+ (!current_function_is_leaf && TARGET_ID_SHARED_LIBRARY)))
{
-#ifdef MOTOROLA
- asm_fprintf (stream, "\t%Olea (%Rpc, %U_GLOBAL_OFFSET_TABLE_@GOTPC), %s\n",
- reg_names[PIC_OFFSET_TABLE_REGNUM]);
-#else
- asm_fprintf (stream, "\tmovel %0I__GLOBAL_OFFSET_TABLE_, %s\n",
- reg_names[PIC_OFFSET_TABLE_REGNUM]);
- asm_fprintf (stream, "\tlea %Rpc@(0,%s:l),%s\n",
- reg_names[PIC_OFFSET_TABLE_REGNUM],
- reg_names[PIC_OFFSET_TABLE_REGNUM]);
-#endif
+ if (TARGET_ID_SHARED_LIBRARY)
+ {
+ asm_fprintf (stream, "\tmovel %s@(%s), %s\n",
+ M68K_REGNAME(PIC_OFFSET_TABLE_REGNUM),
+ m68k_library_id_string,
+ M68K_REGNAME(PIC_OFFSET_TABLE_REGNUM));
+ }
+ else
+ {
+ if (MOTOROLA)
+ asm_fprintf (stream, "\t%Olea (%Rpc, %U_GLOBAL_OFFSET_TABLE_@GOTPC), %s\n",
+ M68K_REGNAME(PIC_OFFSET_TABLE_REGNUM));
+ else
+ {
+ asm_fprintf (stream, "\tmovel %I%U_GLOBAL_OFFSET_TABLE_, %s\n",
+ M68K_REGNAME(PIC_OFFSET_TABLE_REGNUM));
+ asm_fprintf (stream, "\tlea %Rpc@(0,%s:l),%s\n",
+ M68K_REGNAME(PIC_OFFSET_TABLE_REGNUM),
+ M68K_REGNAME(PIC_OFFSET_TABLE_REGNUM));
+ }
+ }
}
}
\f
/* Return true if this function's epilogue can be output as RTL. */
-int
-use_return_insn ()
+bool
+use_return_insn (void)
{
- int regno;
-
if (!reload_completed || frame_pointer_needed || get_frame_size () != 0)
- return 0;
-
- /* Copied from output_function_epilogue (). We should probably create a
- separate layout routine to perform the common work. */
-
- for (regno = 0 ; regno < FIRST_PSEUDO_REGISTER ; regno++)
- if (regs_ever_live[regno] && ! call_used_regs[regno])
- return 0;
+ return false;
- if (flag_pic && current_function_uses_pic_offset_table)
- return 0;
-
- return 1;
+ /* We can output the epilogue as RTL only if no registers need to be
+ restored. */
+ m68k_compute_frame_layout();
+ return current_frame.reg_no ? false : true;
}
/* This function generates the assembly code for function exit,
- on machines that need it. Args are same as for FUNCTION_PROLOGUE.
+ on machines that need it.
The function epilogue should not depend on the current stack pointer!
It should use the frame pointer only, if there is a frame pointer.
This is mandatory because of alloca; we also take advantage of it to
omit stack adjustments before returning. */
-void
-output_function_epilogue (stream, size)
- FILE *stream;
- int size;
+static void
+m68k_output_function_epilogue (FILE *stream, HOST_WIDE_INT size ATTRIBUTE_UNUSED)
{
- register int regno;
- register int mask, fmask;
- register int nregs;
- int offset, foffset, fpoffset;
- extern char call_used_regs[];
- int fsize = (size + 3) & -4;
- int big = 0;
+ HOST_WIDE_INT fsize, fsize_with_regs;
+ bool big = false;
+ bool restore_from_sp = false;
rtx insn = get_last_insn ();
- int restore_from_sp = 0;
-
+
+ m68k_compute_frame_layout();
+
/* If the last insn was a BARRIER, we don't have to write any code. */
if (GET_CODE (insn) == NOTE)
insn = prev_nonnote_insn (insn);
{
/* Output just a no-op so that debuggers don't get confused
about which function the pc is in at this address. */
- asm_fprintf (stream, "\tnop\n");
+ fprintf (stream, "\tnop\n");
return;
}
-#ifdef FUNCTION_BLOCK_PROFILER_EXIT
- if (profile_block_flag == 2)
- {
- FUNCTION_BLOCK_PROFILER_EXIT (stream);
- }
-#endif
-
#ifdef FUNCTION_EXTRA_EPILOGUE
FUNCTION_EXTRA_EPILOGUE (stream, size);
#endif
- nregs = 0; fmask = 0; fpoffset = 0;
-#ifdef SUPPORT_SUN_FPA
- for (regno = 24 ; regno < 56 ; regno++)
- if (regs_ever_live[regno] && ! call_used_regs[regno])
- nregs++;
- fpoffset = nregs * 8;
-#endif
- nregs = 0;
- if (TARGET_68881)
- {
- for (regno = 16; regno < 24; regno++)
- if (regs_ever_live[regno] && ! call_used_regs[regno])
- {
- nregs++;
- fmask |= 1 << (23 - regno);
- }
- }
- foffset = fpoffset + nregs * 12;
- nregs = 0; mask = 0;
- if (frame_pointer_needed)
- regs_ever_live[FRAME_POINTER_REGNUM] = 0;
- for (regno = 0; regno < 16; regno++)
- if (regs_ever_live[regno] && ! call_used_regs[regno])
- {
- nregs++;
- mask |= 1 << regno;
- }
- if (flag_pic && current_function_uses_pic_offset_table)
- {
- nregs++;
- mask |= 1 << PIC_OFFSET_TABLE_REGNUM;
- }
- offset = foffset + nregs * 4;
+
+ fsize = current_frame.size;
+
/* FIXME : leaf_function_p below is too strong.
What we really need to know there is if there could be pending
- stack adjustment needed at that point. */
+ stack adjustment needed at that point. */
restore_from_sp = ! frame_pointer_needed
|| (! current_function_calls_alloca && leaf_function_p ());
- if (offset + fsize >= 0x8000
+
+ /* fsize_with_regs is the size we need to adjust the sp when
+ popping the frame. */
+ fsize_with_regs = fsize;
+
+ /* Because the ColdFire doesn't support moveml with
+ complex address modes, we must adjust the stack manually
+ after restoring registers. When the frame pointer isn't used,
+ we can merge movem adjustment into frame unlinking
+ made immediately after it. */
+ if (TARGET_COLDFIRE && restore_from_sp && (current_frame.reg_no > 2))
+ fsize_with_regs += current_frame.reg_no * 4;
+
+ if (current_frame.offset + fsize >= 0x8000
&& ! restore_from_sp
- && (mask || fmask || fpoffset))
+ && (current_frame.reg_mask || current_frame.fpu_mask))
{
-#ifdef MOTOROLA
- asm_fprintf (stream, "\t%Omove.l %0I%d,%Ra1\n", -fsize);
-#else
- asm_fprintf (stream, "\tmovel %0I%d,%Ra1\n", -fsize);
-#endif
- fsize = 0, big = 1;
+ /* Because the ColdFire doesn't support moveml with
+ complex address modes we make an extra correction here. */
+ if (TARGET_COLDFIRE)
+ fsize += current_frame.offset;
+
+ asm_fprintf (stream, "\t%Omove" ASM_DOT "l %I%wd,%Ra1\n", -fsize);
+ fsize = 0, big = true;
}
- if (TARGET_5200 || nregs <= 2)
+ if (current_frame.reg_no <= 2)
{
/* Restore each separately in the same order moveml does.
Using two movel instructions instead of a single moveml
is about 15% faster for the 68020 and 68030 at no expense
- in code size. */
+ in code size. */
int i;
+ HOST_WIDE_INT offset = current_frame.offset + fsize;
- /* Undo the work from above. */
- for (i = 0; i< 16; i++)
- if (mask & (1 << i))
+ for (i = 0; i < 16; i++)
+ if (current_frame.reg_mask & (1 << i))
{
if (big)
{
-#ifdef MOTOROLA
- asm_fprintf (stream, "\t%Omove.l -%d(%s,%Ra1.l),%s\n",
- offset + fsize,
- reg_names[FRAME_POINTER_REGNUM],
- reg_names[i]);
-#else
- asm_fprintf (stream, "\tmovel %s@(-%d,%Ra1:l),%s\n",
- reg_names[FRAME_POINTER_REGNUM],
- offset + fsize, reg_names[i]);
-#endif
+ if (MOTOROLA)
+ asm_fprintf (stream, "\t%Omove.l -%wd(%s,%Ra1.l),%s\n",
+ offset,
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ M68K_REGNAME(i));
+ else
+ asm_fprintf (stream, "\tmovel %s@(-%wd,%Ra1:l),%s\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ offset,
+ M68K_REGNAME(i));
}
else if (restore_from_sp)
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\t%Omove.l (%Rsp)+,%s\n",
- reg_names[i]);
-#else
- asm_fprintf (stream, "\tmovel %Rsp@+,%s\n",
- reg_names[i]);
-#endif
- }
+ asm_fprintf (stream, MOTOROLA ?
+ "\t%Omove.l (%Rsp)+,%s\n" :
+ "\tmovel %Rsp@+,%s\n",
+ M68K_REGNAME(i));
else
{
-#ifdef MOTOROLA
- asm_fprintf (stream, "\t%Omove.l -%d(%s),%s\n",
- offset + fsize,
- reg_names[FRAME_POINTER_REGNUM],
- reg_names[i]);
-#else
- asm_fprintf (stream, "\tmovel %s@(-%d),%s\n",
- reg_names[FRAME_POINTER_REGNUM],
- offset + fsize, reg_names[i]);
-#endif
+ if (MOTOROLA)
+ asm_fprintf (stream, "\t%Omove.l -%wd(%s),%s\n",
+ offset,
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ M68K_REGNAME(i));
+ else
+ asm_fprintf (stream, "\tmovel %s@(-%wd),%s\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ offset,
+ M68K_REGNAME(i));
}
- offset = offset - 4;
+ offset -= 4;
}
}
- else if (mask)
+ else if (current_frame.reg_mask)
{
- if (big)
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tmovm.l -%d(%s,%Ra1.l),%0I0x%x\n",
- offset + fsize,
- reg_names[FRAME_POINTER_REGNUM],
- mask);
-#else
- asm_fprintf (stream, "\tmoveml %s@(-%d,%Ra1:l),%0I0x%x\n",
- reg_names[FRAME_POINTER_REGNUM],
- offset + fsize, mask);
-#endif
- }
- else if (restore_from_sp)
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tmovm.l (%Rsp)+,%0I0x%x\n", mask);
-#else
- asm_fprintf (stream, "\tmoveml %Rsp@+,%0I0x%x\n", mask);
-#endif
- }
- else
+ /* The ColdFire requires special handling due to its limited moveml insn. */
+ if (TARGET_COLDFIRE)
+ {
+ if (big)
+ {
+ asm_fprintf (stream, "\tadd" ASM_DOT "l %s,%Ra1\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM));
+ asm_fprintf (stream, MOTOROLA ?
+ "\tmovm.l (%Ra1),%I0x%x\n" :
+ "\tmoveml %Ra1@,%I0x%x\n",
+ current_frame.reg_mask);
+ }
+ else if (restore_from_sp)
+ asm_fprintf (stream, MOTOROLA ?
+ "\tmovm.l (%Rsp),%I0x%x\n" :
+ "\tmoveml %Rsp@,%I0x%x\n",
+ current_frame.reg_mask);
+ else
+ {
+ if (MOTOROLA)
+ asm_fprintf (stream, "\tmovm.l -%wd(%s),%I0x%x\n",
+ current_frame.offset + fsize,
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.reg_mask);
+ else
+ asm_fprintf (stream, "\tmoveml %s@(-%wd),%I0x%x\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.offset + fsize,
+ current_frame.reg_mask);
+ }
+ }
+ else /* !TARGET_COLDFIRE */
{
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tmovm.l -%d(%s),%0I0x%x\n",
- offset + fsize,
- reg_names[FRAME_POINTER_REGNUM],
- mask);
-#else
- asm_fprintf (stream, "\tmoveml %s@(-%d),%0I0x%x\n",
- reg_names[FRAME_POINTER_REGNUM],
- offset + fsize, mask);
-#endif
+ if (big)
+ {
+ if (MOTOROLA)
+ asm_fprintf (stream, "\tmovm.l -%wd(%s,%Ra1.l),%I0x%x\n",
+ current_frame.offset + fsize,
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.reg_mask);
+ else
+ asm_fprintf (stream, "\tmoveml %s@(-%wd,%Ra1:l),%I0x%x\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.offset + fsize,
+ current_frame.reg_mask);
+ }
+ else if (restore_from_sp)
+ {
+ asm_fprintf (stream, MOTOROLA ?
+ "\tmovm.l (%Rsp)+,%I0x%x\n" :
+ "\tmoveml %Rsp@+,%I0x%x\n",
+ current_frame.reg_mask);
+ }
+ else
+ {
+ if (MOTOROLA)
+ asm_fprintf (stream, "\tmovm.l -%wd(%s),%I0x%x\n",
+ current_frame.offset + fsize,
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.reg_mask);
+ else
+ asm_fprintf (stream, "\tmoveml %s@(-%wd),%I0x%x\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.offset + fsize,
+ current_frame.reg_mask);
+ }
}
}
- if (fmask)
+ if (current_frame.fpu_rev_mask)
{
if (big)
{
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tfmovm -%d(%s,%Ra1.l),%0I0x%x\n",
- foffset + fsize,
- reg_names[FRAME_POINTER_REGNUM],
- fmask);
-#else
- asm_fprintf (stream, "\tfmovem %s@(-%d,%Ra1:l),%0I0x%x\n",
- reg_names[FRAME_POINTER_REGNUM],
- foffset + fsize, fmask);
-#endif
+ if (MOTOROLA)
+ asm_fprintf (stream, "\tfmovm -%wd(%s,%Ra1.l),%I0x%x\n",
+ current_frame.foffset + fsize,
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.fpu_rev_mask);
+ else
+ asm_fprintf (stream, "\tfmovem %s@(-%wd,%Ra1:l),%I0x%x\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.foffset + fsize,
+ current_frame.fpu_rev_mask);
}
else if (restore_from_sp)
{
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tfmovm (%Rsp)+,%0I0x%x\n", fmask);
-#else
- asm_fprintf (stream, "\tfmovem %Rsp@+,%0I0x%x\n", fmask);
-#endif
+ if (MOTOROLA)
+ asm_fprintf (stream, "\tfmovm (%Rsp)+,%I0x%x\n",
+ current_frame.fpu_rev_mask);
+ else
+ asm_fprintf (stream, "\tfmovem %Rsp@+,%I0x%x\n",
+ current_frame.fpu_rev_mask);
}
else
{
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tfmovm -%d(%s),%0I0x%x\n",
- foffset + fsize,
- reg_names[FRAME_POINTER_REGNUM],
- fmask);
-#else
- asm_fprintf (stream, "\tfmovem %s@(-%d),%0I0x%x\n",
- reg_names[FRAME_POINTER_REGNUM],
- foffset + fsize, fmask);
-#endif
- }
- }
- if (fpoffset != 0)
- for (regno = 55; regno >= 24; regno--)
- if (regs_ever_live[regno] && ! call_used_regs[regno])
- {
- if (big)
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tfpmovd -%d(%s,%Ra1.l), %s\n",
- fpoffset + fsize,
- reg_names[FRAME_POINTER_REGNUM],
- reg_names[regno]);
-#else
- asm_fprintf (stream, "\tfpmoved %s@(-%d,%Ra1:l), %s\n",
- reg_names[FRAME_POINTER_REGNUM],
- fpoffset + fsize, reg_names[regno]);
-#endif
- }
- else if (restore_from_sp)
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tfpmovd (%Rsp)+,%s\n",
- reg_names[regno]);
-#else
- asm_fprintf (stream, "\tfpmoved %Rsp@+, %s\n",
- reg_names[regno]);
-#endif
- }
+ if (MOTOROLA)
+ asm_fprintf (stream, "\tfmovm -%wd(%s),%I0x%x\n",
+ current_frame.foffset + fsize,
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.fpu_rev_mask);
else
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tfpmovd -%d(%s), %s\n",
- fpoffset + fsize,
- reg_names[FRAME_POINTER_REGNUM],
- reg_names[regno]);
-#else
- asm_fprintf (stream, "\tfpmoved %s@(-%d), %s\n",
- reg_names[FRAME_POINTER_REGNUM],
- fpoffset + fsize, reg_names[regno]);
-#endif
- }
- fpoffset -= 8;
+ asm_fprintf (stream, "\tfmovem %s@(-%wd),%I0x%x\n",
+ M68K_REGNAME(FRAME_POINTER_REGNUM),
+ current_frame.foffset + fsize,
+ current_frame.fpu_rev_mask);
}
+ }
if (frame_pointer_needed)
- fprintf (stream, "\tunlk %s\n",
- reg_names[FRAME_POINTER_REGNUM]);
- else if (fsize)
+ fprintf (stream, "\tunlk %s\n", M68K_REGNAME(FRAME_POINTER_REGNUM));
+ else if (fsize_with_regs)
{
-#ifndef NO_ADDSUB_Q
- if (fsize + 4 <= 8)
+ if (fsize_with_regs <= 8)
{
- if (!TARGET_5200)
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\taddq.w %0I%d,%Rsp\n", fsize + 4);
-#else
- asm_fprintf (stream, "\taddqw %0I%d,%Rsp\n", fsize + 4);
-#endif
- }
+ if (!TARGET_COLDFIRE)
+ asm_fprintf (stream, "\taddq" ASM_DOT "w %I%wd,%Rsp\n",
+ fsize_with_regs);
else
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\taddq.l %0I%d,%Rsp\n", fsize + 4);
-#else
- asm_fprintf (stream, "\taddql %0I%d,%Rsp\n", fsize + 4);
-#endif
- }
+ asm_fprintf (stream, "\taddq" ASM_DOT "l %I%wd,%Rsp\n",
+ fsize_with_regs);
}
- else if (fsize + 4 <= 16 && TARGET_CPU32)
+ else if (fsize_with_regs <= 16 && TARGET_CPU32)
{
/* On the CPU32 it is faster to use two addqw instructions to
- add a small integer (8 < N <= 16) to a register. */
- /* asm_fprintf() cannot handle %. */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\taddq.w %0I8,%Rsp\n\taddq.w %0I%d,%Rsp\n",
- fsize + 4 - 8);
-#else
- asm_fprintf (stream, "\taddqw %0I8,%Rsp\n\taddqw %0I%d,%Rsp\n",
- fsize + 4 - 8);
-#endif
+ add a small integer (8 < N <= 16) to a register. */
+ asm_fprintf (stream, "\taddq" ASM_DOT "w %I8,%Rsp\n"
+ "\taddq" ASM_DOT "w %I%wd,%Rsp\n",
+ fsize_with_regs - 8);
}
- else
-#endif /* not NO_ADDSUB_Q */
- if (fsize + 4 < 0x8000)
+ else if (fsize_with_regs < 0x8000)
{
if (TARGET_68040)
- {
- /* asm_fprintf() cannot handle %. */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tadd.w %0I%d,%Rsp\n", fsize + 4);
-#else
- asm_fprintf (stream, "\taddw %0I%d,%Rsp\n", fsize + 4);
-#endif
- }
+ asm_fprintf (stream, "\tadd" ASM_DOT "w %I%wd,%Rsp\n",
+ fsize_with_regs);
else
- {
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tlea (%d,%Rsp),%Rsp\n", fsize + 4);
-#else
- asm_fprintf (stream, "\tlea %Rsp@(%d),%Rsp\n", fsize + 4);
-#endif
- }
+ asm_fprintf (stream, MOTOROLA ?
+ "\tlea (%wd,%Rsp),%Rsp\n" :
+ "\tlea %Rsp@(%wd),%Rsp\n",
+ fsize_with_regs);
}
else
- {
- /* asm_fprintf() cannot handle %. */
-#ifdef MOTOROLA
- asm_fprintf (stream, "\tadd.l %0I%d,%Rsp\n", fsize + 4);
-#else
- asm_fprintf (stream, "\taddl %0I%d,%Rsp\n", fsize + 4);
-#endif
- }
- }
- if (current_function_pops_args)
- asm_fprintf (stream, "\trtd %0I%d\n", current_function_pops_args);
+ asm_fprintf (stream, "\tadd" ASM_DOT "l %I%wd,%Rsp\n", fsize_with_regs);
+ }
+ if (current_function_calls_eh_return)
+ asm_fprintf (stream, "\tadd" ASM_DOT"l %Ra0,%Rsp\n");
+ if (m68k_interrupt_function_p (current_function_decl))
+ fprintf (stream, "\trte\n");
+ else if (current_function_pops_args)
+ asm_fprintf (stream, "\trtd %I%d\n", current_function_pops_args);
else
fprintf (stream, "\trts\n");
}
/* Similar to general_operand, but exclude stack_pointer_rtx. */
int
-not_sp_operand (op, mode)
- register rtx op;
- enum machine_mode mode;
+not_sp_operand (rtx op, enum machine_mode mode)
{
- return op != stack_pointer_rtx && general_operand (op, mode);
+ return op != stack_pointer_rtx && nonimmediate_operand (op, mode);
}
-/* Return TRUE if X is a valid comparison operator for the dbcc
+/* Return true if X is a valid comparison operator for the dbcc
instruction.
Note it rejects floating point comparison operators.
It also rejects some comparisons when CC_NO_OVERFLOW is set. */
int
-valid_dbcc_comparison_p (x, mode)
- rtx x;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+valid_dbcc_comparison_p (rtx x, enum machine_mode mode ATTRIBUTE_UNUSED)
{
switch (GET_CODE (x))
{
}
}
-/* Return non-zero if flags are currently in the 68881 flag register. */
+/* Return nonzero if flags are currently in the 68881 flag register. */
int
-flags_in_68881 ()
+flags_in_68881 (void)
{
/* We could add support for these in the future */
return cc_status.flags & CC_IN_68881;
}
+/* Output a BSR instruction suitable for PIC code. */
+void
+m68k_output_pic_call(rtx dest)
+{
+ const char *out;
+
+ if (!(GET_CODE (dest) == MEM && GET_CODE (XEXP (dest, 0)) == SYMBOL_REF))
+ out = "jsr %0";
+ /* We output a BSR instruction if we're using -fpic or we're building for
+ * a target that supports long branches. If we're building -fPIC on the
+ * 68000, 68010 or ColdFire we generate one of two sequences:
+ * a shorter one that uses a GOT entry or a longer one that doesn't.
+ * We'll use the -Os command-line flag to decide which to generate.
+ * Both sequences take the same time to execute on the ColdFire.
+ */
+ else if (TARGET_PCREL)
+ out = "bsr.l %o0";
+ else if ((flag_pic == 1) || TARGET_68020)
+#if defined(USE_GAS)
+ out = "bsr.l %0@PLTPC";
+#else
+ out = "bsr %0@PLTPC";
+#endif
+ else if (optimize_size || TARGET_ID_SHARED_LIBRARY)
+ out = "move.l %0@GOT(%%a5), %%a1\n\tjsr (%%a1)";
+ else
+ out = "lea %0-.-8,%%a1\n\tjsr 0(%%pc,%%a1)";
+
+ output_asm_insn(out, &dest);
+}
+
/* Output a dbCC; jCC sequence. Note we do not handle the
floating point version of this sequence (Fdbcc). We also
do not handle alternative conditions when CC_NO_OVERFLOW is
kick those out before we get here. */
void
-output_dbcc_and_branch (operands)
- rtx *operands;
+output_dbcc_and_branch (rtx *operands)
{
switch (GET_CODE (operands[3]))
{
case EQ:
-#ifdef MOTOROLA
- output_asm_insn ("dbeq %0,%l1\n\tjbeq %l2", operands);
-#else
- output_asm_insn ("dbeq %0,%l1\n\tjeq %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dbeq %0,%l1\n\tjbeq %l2" :
+ "dbeq %0,%l1\n\tjeq %l2",
+ operands);
+ break;
case NE:
-#ifdef MOTOROLA
- output_asm_insn ("dbne %0,%l1\n\tjbne %l2", operands);
-#else
- output_asm_insn ("dbne %0,%l1\n\tjne %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dbne %0,%l1\n\tjbne %l2" :
+ "dbne %0,%l1\n\tjne %l2",
+ operands);
+ break;
case GT:
-#ifdef MOTOROLA
- output_asm_insn ("dbgt %0,%l1\n\tjbgt %l2", operands);
-#else
- output_asm_insn ("dbgt %0,%l1\n\tjgt %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dbgt %0,%l1\n\tjbgt %l2" :
+ "dbgt %0,%l1\n\tjgt %l2",
+ operands);
+ break;
case GTU:
-#ifdef MOTOROLA
- output_asm_insn ("dbhi %0,%l1\n\tjbhi %l2", operands);
-#else
- output_asm_insn ("dbhi %0,%l1\n\tjhi %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dbhi %0,%l1\n\tjbhi %l2" :
+ "dbhi %0,%l1\n\tjhi %l2",
+ operands);
+ break;
case LT:
-#ifdef MOTOROLA
- output_asm_insn ("dblt %0,%l1\n\tjblt %l2", operands);
-#else
- output_asm_insn ("dblt %0,%l1\n\tjlt %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dblt %0,%l1\n\tjblt %l2" :
+ "dblt %0,%l1\n\tjlt %l2",
+ operands);
+ break;
case LTU:
-#ifdef MOTOROLA
- output_asm_insn ("dbcs %0,%l1\n\tjbcs %l2", operands);
-#else
- output_asm_insn ("dbcs %0,%l1\n\tjcs %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dbcs %0,%l1\n\tjbcs %l2" :
+ "dbcs %0,%l1\n\tjcs %l2",
+ operands);
+ break;
case GE:
-#ifdef MOTOROLA
- output_asm_insn ("dbge %0,%l1\n\tjbge %l2", operands);
-#else
- output_asm_insn ("dbge %0,%l1\n\tjge %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dbge %0,%l1\n\tjbge %l2" :
+ "dbge %0,%l1\n\tjge %l2",
+ operands);
+ break;
case GEU:
-#ifdef MOTOROLA
- output_asm_insn ("dbcc %0,%l1\n\tjbcc %l2", operands);
-#else
- output_asm_insn ("dbcc %0,%l1\n\tjcc %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dbcc %0,%l1\n\tjbcc %l2" :
+ "dbcc %0,%l1\n\tjcc %l2",
+ operands);
+ break;
case LE:
-#ifdef MOTOROLA
- output_asm_insn ("dble %0,%l1\n\tjble %l2", operands);
-#else
- output_asm_insn ("dble %0,%l1\n\tjle %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dble %0,%l1\n\tjble %l2" :
+ "dble %0,%l1\n\tjle %l2",
+ operands);
+ break;
case LEU:
-#ifdef MOTOROLA
- output_asm_insn ("dbls %0,%l1\n\tjbls %l2", operands);
-#else
- output_asm_insn ("dbls %0,%l1\n\tjls %l2", operands);
-#endif
- break;
+ output_asm_insn (MOTOROLA ?
+ "dbls %0,%l1\n\tjbls %l2" :
+ "dbls %0,%l1\n\tjls %l2",
+ operands);
+ break;
default:
abort ();
}
/* If the decrement is to be done in SImode, then we have
- to compensate for the fact that dbcc decrements in HImode. */
+ to compensate for the fact that dbcc decrements in HImode. */
switch (GET_MODE (operands[0]))
{
case SImode:
-#ifdef MOTOROLA
- output_asm_insn ("clr%.w %0\n\tsubq%.l %#1,%0\n\tjbpl %l1", operands);
-#else
- output_asm_insn ("clr%.w %0\n\tsubq%.l %#1,%0\n\tjpl %l1", operands);
-#endif
+ output_asm_insn (MOTOROLA ?
+ "clr%.w %0\n\tsubq%.l #1,%0\n\tjbpl %l1" :
+ "clr%.w %0\n\tsubq%.l #1,%0\n\tjpl %l1",
+ operands);
break;
case HImode:
}
const char *
-output_scc_di(op, operand1, operand2, dest)
- rtx op;
- rtx operand1;
- rtx operand2;
- rtx dest;
+output_scc_di(rtx op, rtx operand1, rtx operand2, rtx dest)
{
rtx loperands[7];
enum rtx_code op_code = GET_CODE (op);
- /* This does not produce a usefull cc. */
+ /* This does not produce a useful cc. */
CC_STATUS_INIT;
/* The m68k cmp.l instruction requires operand1 to be a reg as used
if (GET_CODE (operand1) == REG)
loperands[1] = gen_rtx_REG (SImode, REGNO (operand1) + 1);
else
- loperands[1] = adj_offsettable_operand (operand1, 4);
+ loperands[1] = adjust_address (operand1, SImode, 4);
if (operand2 != const0_rtx)
{
loperands[2] = operand2;
if (GET_CODE (operand2) == REG)
loperands[3] = gen_rtx_REG (SImode, REGNO (operand2) + 1);
else
- loperands[3] = adj_offsettable_operand (operand2, 4);
+ loperands[3] = adjust_address (operand2, SImode, 4);
}
loperands[4] = gen_label_rtx();
if (operand2 != const0_rtx)
{
-#ifdef MOTOROLA
-#ifdef SGS_CMP_ORDER
- output_asm_insn ("cmp%.l %0,%2\n\tjbne %l4\n\tcmp%.l %1,%3", loperands);
-#else
- output_asm_insn ("cmp%.l %2,%0\n\tjbne %l4\n\tcmp%.l %3,%1", loperands);
-#endif
-#else
-#ifdef SGS_CMP_ORDER
- output_asm_insn ("cmp%.l %0,%2\n\tjne %l4\n\tcmp%.l %1,%3", loperands);
-#else
- output_asm_insn ("cmp%.l %2,%0\n\tjne %l4\n\tcmp%.l %3,%1", loperands);
-#endif
-#endif
+ output_asm_insn (MOTOROLA ?
+ "cmp%.l %2,%0\n\tjbne %l4\n\tcmp%.l %3,%1" :
+ "cmp%.l %2,%0\n\tjne %l4\n\tcmp%.l %3,%1",
+ loperands);
}
else
{
- if (TARGET_68020 || TARGET_5200 || ! ADDRESS_REG_P (loperands[0]))
+ if (TARGET_68020 || TARGET_COLDFIRE || ! ADDRESS_REG_P (loperands[0]))
output_asm_insn ("tst%.l %0", loperands);
else
{
-#ifdef SGS_CMP_ORDER
- output_asm_insn ("cmp%.w %0,%#0", loperands);
-#else
- output_asm_insn ("cmp%.w %#0,%0", loperands);
-#endif
+ output_asm_insn ("cmp%.w #0,%0", loperands);
}
-#ifdef MOTOROLA
- output_asm_insn ("jbne %l4", loperands);
-#else
- output_asm_insn ("jne %l4", loperands);
-#endif
+ output_asm_insn (MOTOROLA ? "jbne %l4" : "jne %l4", loperands);
- if (TARGET_68020 || TARGET_5200 || ! ADDRESS_REG_P (loperands[1]))
+ if (TARGET_68020 || TARGET_COLDFIRE || ! ADDRESS_REG_P (loperands[1]))
output_asm_insn ("tst%.l %1", loperands);
else
- {
-#ifdef SGS_CMP_ORDER
- output_asm_insn ("cmp%.w %1,%#0", loperands);
-#else
- output_asm_insn ("cmp%.w %#0,%1", loperands);
-#endif
- }
+ output_asm_insn ("cmp%.w #0,%1", loperands);
}
loperands[5] = dest;
-
+
switch (op_code)
{
case EQ:
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("seq %5", loperands);
break;
case NE:
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("sne %5", loperands);
break;
case GT:
loperands[6] = gen_label_rtx();
-#ifdef MOTOROLA
- output_asm_insn ("shi %5\n\tjbra %l6", loperands);
-#else
- output_asm_insn ("shi %5\n\tjra %l6", loperands);
-#endif
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ output_asm_insn (MOTOROLA ?
+ "shi %5\n\tjbra %l6" :
+ "shi %5\n\tjra %l6",
+ loperands);
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("sgt %5", loperands);
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[6]));
break;
case GTU:
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("shi %5", loperands);
break;
case LT:
loperands[6] = gen_label_rtx();
-#ifdef MOTOROLA
- output_asm_insn ("scs %5\n\tjbra %l6", loperands);
-#else
- output_asm_insn ("scs %5\n\tjra %l6", loperands);
-#endif
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ output_asm_insn (MOTOROLA ?
+ "scs %5\n\tjbra %l6" :
+ "scs %5\n\tjra %l6",
+ loperands);
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("slt %5", loperands);
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[6]));
break;
case LTU:
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("scs %5", loperands);
break;
case GE:
loperands[6] = gen_label_rtx();
-#ifdef MOTOROLA
- output_asm_insn ("scc %5\n\tjbra %l6", loperands);
-#else
- output_asm_insn ("scc %5\n\tjra %l6", loperands);
-#endif
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ output_asm_insn (MOTOROLA ?
+ "scc %5\n\tjbra %l6" :
+ "scc %5\n\tjra %l6",
+ loperands);
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("sge %5", loperands);
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[6]));
break;
case GEU:
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("scc %5", loperands);
break;
case LE:
loperands[6] = gen_label_rtx();
-#ifdef MOTOROLA
- output_asm_insn ("sls %5\n\tjbra %l6", loperands);
-#else
- output_asm_insn ("sls %5\n\tjra %l6", loperands);
-#endif
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ output_asm_insn (MOTOROLA ?
+ "sls %5\n\tjbra %l6" :
+ "sls %5\n\tjra %l6",
+ loperands);
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("sle %5", loperands);
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[6]));
break;
case LEU:
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+ (*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (loperands[4]));
output_asm_insn ("sls %5", loperands);
break;
}
const char *
-output_btst (operands, countop, dataop, insn, signpos)
- rtx *operands;
- rtx countop, dataop;
- rtx insn;
- int signpos;
+output_btst (rtx *operands, rtx countop, rtx dataop, rtx insn, int signpos)
{
operands[0] = countop;
operands[1] = dataop;
{
int offset = (count & ~signpos) / 8;
count = count & signpos;
- operands[1] = dataop = adj_offsettable_operand (dataop, offset);
+ operands[1] = dataop = adjust_address (dataop, QImode, offset);
}
if (count == signpos)
cc_status.flags = CC_NOT_POSITIVE | CC_Z_IN_NOT_N;
return "btst %0,%1";
}
\f
-/* Returns 1 if OP is either a symbol reference or a sum of a symbol
+/* Returns true if OP is either a symbol reference or a sum of a symbol
reference and a constant. */
-int
-symbolic_operand (op, mode)
- register rtx op;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+bool
+symbolic_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
switch (GET_CODE (op))
{
case SYMBOL_REF:
case LABEL_REF:
- return 1;
+ return true;
case CONST:
op = XEXP (op, 0);
#endif
default:
- return 0;
+ return false;
}
}
\f
-/* Check for sign_extend or zero_extend. Used for bit-count operands. */
+/* Check for sign_extend or zero_extend. Used for bit-count operands. */
int
-extend_operator(x, mode)
- rtx x;
- enum machine_mode mode;
+extend_operator(rtx x, enum machine_mode mode)
{
if (mode != VOIDmode && GET_MODE(x) != mode)
return 0;
handled. */
rtx
-legitimize_pic_address (orig, mode, reg)
- rtx orig, reg;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+legitimize_pic_address (rtx orig, enum machine_mode mode ATTRIBUTE_UNUSED,
+ rtx reg)
{
rtx pic_ref = orig;
{
rtx base;
- /* Make sure this is CONST has not already been legitimized */
+ /* Make sure this has not already been legitimized. */
if (GET_CODE (XEXP (orig, 0)) == PLUS
&& XEXP (XEXP (orig, 0), 0) == pic_offset_table_rtx)
return orig;
else abort ();
if (GET_CODE (orig) == CONST_INT)
- return plus_constant_for_output (base, INTVAL (orig));
+ return plus_constant (base, INTVAL (orig));
pic_ref = gen_rtx_PLUS (Pmode, base, orig);
/* Likewise, should we set special REG_NOTEs here? */
}
}
\f
-typedef enum { MOVL, SWAP, NEGW, NOTW, NOTB, MOVQ } CONST_METHOD;
+typedef enum { MOVL, SWAP, NEGW, NOTW, NOTB, MOVQ, MVS, MVZ } CONST_METHOD;
-static CONST_METHOD const_method PARAMS ((rtx));
+static CONST_METHOD const_method (rtx);
#define USE_MOVQ(i) ((unsigned)((i) + 128) <= 255)
static CONST_METHOD
-const_method (constant)
- rtx constant;
+const_method (rtx constant)
{
int i;
unsigned u;
if (USE_MOVQ (i))
return MOVQ;
- /* The Coldfire doesn't have byte or word operations. */
- /* FIXME: This may not be useful for the m68060 either */
- if (!TARGET_5200)
+ /* The ColdFire doesn't have byte or word operations. */
+ /* FIXME: This may not be useful for the m68060 either. */
+ if (!TARGET_COLDFIRE)
{
/* if -256 < N < 256 but N is not in range for a moveq
- N^ff will be, so use moveq #N^ff, dreg; not.b dreg. */
+ N^ff will be, so use moveq #N^ff, dreg; not.b dreg. */
if (USE_MOVQ (i ^ 0xff))
return NOTB;
/* Likewise, try with not.w */
/* This is the only value where neg.w is useful */
if (i == -65408)
return NEGW;
- /* Try also with swap */
- u = i;
- if (USE_MOVQ ((u >> 16) | (u << 16)))
- return SWAP;
}
+
+ /* Try also with swap. */
+ u = i;
+ if (USE_MOVQ ((u >> 16) | (u << 16)))
+ return SWAP;
+
+ if (TARGET_CFV4)
+ {
+ /* Try using MVZ/MVS with an immediate value to load constants. */
+ if (i >= 0 && i <= 65535)
+ return MVZ;
+ if (i >= -32768 && i <= 32767)
+ return MVS;
+ }
+
/* Otherwise, use move.l */
return MOVL;
}
-int
-const_int_cost (constant)
- rtx constant;
+static int
+const_int_cost (rtx constant)
{
switch (const_method (constant))
{
case MOVQ :
/* Constants between -128 and 127 are cheap due to moveq */
return 0;
+ case MVZ:
+ case MVS:
case NOTB :
case NOTW :
case NEGW :
}
}
+static bool
+m68k_rtx_costs (rtx x, int code, int outer_code, int *total)
+{
+ switch (code)
+ {
+ case CONST_INT:
+ /* Constant zero is super cheap due to clr instruction. */
+ if (x == const0_rtx)
+ *total = 0;
+ else
+ *total = const_int_cost (x);
+ return true;
+
+ case CONST:
+ case LABEL_REF:
+ case SYMBOL_REF:
+ *total = 3;
+ return true;
+
+ case CONST_DOUBLE:
+ /* Make 0.0 cheaper than other floating constants to
+ encourage creating tstsf and tstdf insns. */
+ if (outer_code == COMPARE
+ && (x == CONST0_RTX (SFmode) || x == CONST0_RTX (DFmode)))
+ *total = 4;
+ else
+ *total = 5;
+ return true;
+
+ /* These are vaguely right for a 68020. */
+ /* The costs for long multiply have been adjusted to work properly
+ in synth_mult on the 68020, relative to an average of the time
+ for add and the time for shift, taking away a little more because
+ sometimes move insns are needed. */
+ /* div?.w is relatively cheaper on 68000 counted in COSTS_N_INSNS terms. */
+#define MULL_COST (TARGET_68060 ? 2 : TARGET_68040 ? 5 : (TARGET_COLDFIRE && !TARGET_5200) ? 3 : TARGET_COLDFIRE ? 10 : 13)
+#define MULW_COST (TARGET_68060 ? 2 : TARGET_68040 ? 3 : TARGET_68020 ? 8 : \
+ (TARGET_COLDFIRE && !TARGET_5200) ? 2 : 5)
+#define DIVW_COST (TARGET_68020 ? 27 : TARGET_CF_HWDIV ? 11 : 12)
+
+ case PLUS:
+ /* An lea costs about three times as much as a simple add. */
+ if (GET_MODE (x) == SImode
+ && GET_CODE (XEXP (x, 1)) == REG
+ && GET_CODE (XEXP (x, 0)) == MULT
+ && GET_CODE (XEXP (XEXP (x, 0), 0)) == REG
+ && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT
+ && (INTVAL (XEXP (XEXP (x, 0), 1)) == 2
+ || INTVAL (XEXP (XEXP (x, 0), 1)) == 4
+ || INTVAL (XEXP (XEXP (x, 0), 1)) == 8))
+ {
+ /* lea an@(dx:l:i),am */
+ *total = COSTS_N_INSNS (TARGET_COLDFIRE ? 2 : 3);
+ return true;
+ }
+ return false;
+
+ case ASHIFT:
+ case ASHIFTRT:
+ case LSHIFTRT:
+ if (TARGET_68060)
+ {
+ *total = COSTS_N_INSNS(1);
+ return true;
+ }
+ if (! TARGET_68020 && ! TARGET_COLDFIRE)
+ {
+ if (GET_CODE (XEXP (x, 1)) == CONST_INT)
+ {
+ if (INTVAL (XEXP (x, 1)) < 16)
+ *total = COSTS_N_INSNS (2) + INTVAL (XEXP (x, 1)) / 2;
+ else
+ /* We're using clrw + swap for these cases. */
+ *total = COSTS_N_INSNS (4) + (INTVAL (XEXP (x, 1)) - 16) / 2;
+ }
+ else
+ *total = COSTS_N_INSNS (10); /* worst case */
+ return true;
+ }
+ /* A shift by a big integer takes an extra instruction. */
+ if (GET_CODE (XEXP (x, 1)) == CONST_INT
+ && (INTVAL (XEXP (x, 1)) == 16))
+ {
+ *total = COSTS_N_INSNS (2); /* clrw;swap */
+ return true;
+ }
+ if (GET_CODE (XEXP (x, 1)) == CONST_INT
+ && !(INTVAL (XEXP (x, 1)) > 0
+ && INTVAL (XEXP (x, 1)) <= 8))
+ {
+ *total = COSTS_N_INSNS (TARGET_COLDFIRE ? 1 : 3); /* lsr #i,dn */
+ return true;
+ }
+ return false;
+
+ case MULT:
+ if ((GET_CODE (XEXP (x, 0)) == ZERO_EXTEND
+ || GET_CODE (XEXP (x, 0)) == SIGN_EXTEND)
+ && GET_MODE (x) == SImode)
+ *total = COSTS_N_INSNS (MULW_COST);
+ else if (GET_MODE (x) == QImode || GET_MODE (x) == HImode)
+ *total = COSTS_N_INSNS (MULW_COST);
+ else
+ *total = COSTS_N_INSNS (MULL_COST);
+ return true;
+
+ case DIV:
+ case UDIV:
+ case MOD:
+ case UMOD:
+ if (GET_MODE (x) == QImode || GET_MODE (x) == HImode)
+ *total = COSTS_N_INSNS (DIVW_COST); /* div.w */
+ else if (TARGET_CF_HWDIV)
+ *total = COSTS_N_INSNS (18);
+ else
+ *total = COSTS_N_INSNS (43); /* div.l */
+ return true;
+
+ default:
+ return false;
+ }
+}
+
const char *
-output_move_const_into_data_reg (operands)
- rtx *operands;
+output_move_const_into_data_reg (rtx *operands)
{
int i;
i = INTVAL (operands[1]);
switch (const_method (operands[1]))
{
+ case MVZ:
+ return "mvsw %1,%0";
+ case MVS:
+ return "mvzw %1,%0";
case MOVQ :
-#if defined (MOTOROLA) && !defined (CRDS)
- return "moveq%.l %1,%0";
-#else
return "moveq %1,%0";
-#endif
case NOTB :
+ CC_STATUS_INIT;
operands[1] = GEN_INT (i ^ 0xff);
-#if defined (MOTOROLA) && !defined (CRDS)
- return "moveq%.l %1,%0\n\tnot%.b %0";
-#else
return "moveq %1,%0\n\tnot%.b %0";
-#endif
case NOTW :
+ CC_STATUS_INIT;
operands[1] = GEN_INT (i ^ 0xffff);
-#if defined (MOTOROLA) && !defined (CRDS)
- return "moveq%.l %1,%0\n\tnot%.w %0";
-#else
return "moveq %1,%0\n\tnot%.w %0";
-#endif
case NEGW :
-#if defined (MOTOROLA) && !defined (CRDS)
- return "moveq%.l %#-128,%0\n\tneg%.w %0";
-#else
- return "moveq %#-128,%0\n\tneg%.w %0";
-#endif
+ CC_STATUS_INIT;
+ return "moveq #-128,%0\n\tneg%.w %0";
case SWAP :
{
unsigned u = i;
operands[1] = GEN_INT ((u << 16) | (u >> 16));
-#if defined (MOTOROLA) && !defined (CRDS)
- return "moveq%.l %1,%0\n\tswap %0";
-#else
return "moveq %1,%0\n\tswap %0";
-#endif
}
case MOVL :
return "move%.l %1,%0";
}
}
+/* Return 1 if 'constant' can be represented by
+ mov3q on a ColdFire V4 core. */
+int
+valid_mov3q_const (rtx constant)
+{
+ int i;
+
+ if (TARGET_CFV4 && GET_CODE (constant) == CONST_INT)
+ {
+ i = INTVAL (constant);
+ if ((i == -1) || (i >= 1 && i <= 7))
+ return 1;
+ }
+ return 0;
+}
+
+
const char *
-output_move_simode_const (operands)
- rtx *operands;
+output_move_simode_const (rtx *operands)
{
if (operands[1] == const0_rtx
&& (DATA_REG_P (operands[0])
|| GET_CODE (operands[0]) == MEM)
/* clr insns on 68000 read before writing.
This isn't so on the 68010, but we have no TARGET_68010. */
- && ((TARGET_68020 || TARGET_5200)
+ && ((TARGET_68020 || TARGET_COLDFIRE)
|| !(GET_CODE (operands[0]) == MEM
&& MEM_VOLATILE_P (operands[0]))))
return "clr%.l %0";
+ else if ((GET_MODE (operands[0]) == SImode)
+ && valid_mov3q_const (operands[1]))
+ return "mov3q%.l %1,%0";
else if (operands[1] == const0_rtx
&& ADDRESS_REG_P (operands[0]))
return "sub%.l %0,%0";
else if (ADDRESS_REG_P (operands[0])
&& INTVAL (operands[1]) < 0x8000
&& INTVAL (operands[1]) >= -0x8000)
- return "move%.w %1,%0";
+ {
+ if (valid_mov3q_const (operands[1]))
+ return "mov3q%.l %1,%0";
+ return "move%.w %1,%0";
+ }
else if (GET_CODE (operands[0]) == MEM
&& GET_CODE (XEXP (operands[0], 0)) == PRE_DEC
&& REGNO (XEXP (XEXP (operands[0], 0), 0)) == STACK_POINTER_REGNUM
&& INTVAL (operands[1]) < 0x8000
&& INTVAL (operands[1]) >= -0x8000)
- return "pea %a1";
+ {
+ if (valid_mov3q_const (operands[1]))
+ return "mov3q%.l %1,%-";
+ return "pea %a1";
+ }
return "move%.l %1,%0";
}
const char *
-output_move_simode (operands)
- rtx *operands;
+output_move_simode (rtx *operands)
{
if (GET_CODE (operands[1]) == CONST_INT)
return output_move_simode_const (operands);
}
const char *
-output_move_himode (operands)
- rtx *operands;
+output_move_himode (rtx *operands)
{
if (GET_CODE (operands[1]) == CONST_INT)
{
|| GET_CODE (operands[0]) == MEM)
/* clr insns on 68000 read before writing.
This isn't so on the 68010, but we have no TARGET_68010. */
- && ((TARGET_68020 || TARGET_5200)
+ && ((TARGET_68020 || TARGET_COLDFIRE)
|| !(GET_CODE (operands[0]) == MEM
&& MEM_VOLATILE_P (operands[0]))))
return "clr%.w %0";
&& INTVAL (operands[1]) < 128
&& INTVAL (operands[1]) >= -128)
{
-#if defined(MOTOROLA) && !defined(CRDS)
- return "moveq%.l %1,%0";
-#else
return "moveq %1,%0";
-#endif
}
else if (INTVAL (operands[1]) < 0x8000
&& INTVAL (operands[1]) >= -0x8000)
}
else if (CONSTANT_P (operands[1]))
return "move%.l %1,%0";
-#ifndef SGS_NO_LI
/* Recognize the insn before a tablejump, one that refers
to a table of offsets. Such an insn will need to refer
to a label on the insn. So output one. Use the label-number
&& GET_CODE (XEXP (XEXP (operands[1], 0), 0)) != PLUS)
{
rtx labelref = XEXP (XEXP (operands[1], 0), 1);
-#if defined (MOTOROLA) && !defined (SGS_SWITCH_TABLES)
-#ifdef SGS
- asm_fprintf (asm_out_file, "\tset %LLI%d,.+2\n",
- CODE_LABEL_NUMBER (XEXP (labelref, 0)));
-#else /* not SGS */
- asm_fprintf (asm_out_file, "\t.set %LLI%d,.+2\n",
- CODE_LABEL_NUMBER (XEXP (labelref, 0)));
-#endif /* not SGS */
-#else /* SGS_SWITCH_TABLES or not MOTOROLA */
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "LI",
- CODE_LABEL_NUMBER (XEXP (labelref, 0)));
-#ifdef SGS_SWITCH_TABLES
- /* Set flag saying we need to define the symbol
- LD%n (with value L%n-LI%n) at the end of the switch table. */
- switch_table_difference_label_flag = 1;
-#endif /* SGS_SWITCH_TABLES */
-#endif /* SGS_SWITCH_TABLES or not MOTOROLA */
- }
-#endif /* SGS_NO_LI */
+ if (MOTOROLA)
+ asm_fprintf (asm_out_file, "\t.set %LLI%d,.+2\n",
+ CODE_LABEL_NUMBER (XEXP (labelref, 0)));
+ else
+ (*targetm.asm_out.internal_label) (asm_out_file, "LI",
+ CODE_LABEL_NUMBER (XEXP (labelref, 0)));
+ }
return "move%.w %1,%0";
}
const char *
-output_move_qimode (operands)
- rtx *operands;
+output_move_qimode (rtx *operands)
{
- rtx xoperands[4];
-
- /* This is probably useless, since it loses for pushing a struct
- of several bytes a byte at a time. */
/* 68k family always modifies the stack pointer by at least 2, even for
- byte pushes. The 5200 (coldfire) does not do this. */
+ byte pushes. The 5200 (ColdFire) does not do this. */
if (GET_CODE (operands[0]) == MEM
&& GET_CODE (XEXP (operands[0], 0)) == PRE_DEC
&& XEXP (XEXP (operands[0], 0), 0) == stack_pointer_rtx
&& ! ADDRESS_REG_P (operands[1])
- && ! TARGET_5200)
- {
- xoperands[1] = operands[1];
- xoperands[2]
- = gen_rtx_MEM (QImode,
- gen_rtx_PLUS (VOIDmode, stack_pointer_rtx, const1_rtx));
- /* Just pushing a byte puts it in the high byte of the halfword. */
- /* We must put it in the low-order, high-numbered byte. */
- if (!reg_mentioned_p (stack_pointer_rtx, operands[1]))
- {
- xoperands[3] = stack_pointer_rtx;
-#ifndef NO_ADDSUB_Q
- output_asm_insn ("subq%.l %#2,%3\n\tmove%.b %1,%2", xoperands);
-#else
- output_asm_insn ("sub%.l %#2,%3\n\tmove%.b %1,%2", xoperands);
-#endif
- }
- else
- output_asm_insn ("move%.b %1,%-\n\tmove%.b %@,%2", xoperands);
- return "";
- }
+ && ! TARGET_COLDFIRE)
+ /* generated by pushqi1 pattern now */
+ abort ();
/* clr and st insns on 68000 read before writing.
This isn't so on the 68010, but we have no TARGET_68010. */
if (!ADDRESS_REG_P (operands[0])
- && ((TARGET_68020 || TARGET_5200)
+ && ((TARGET_68020 || TARGET_COLDFIRE)
|| !(GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0]))))
{
if (operands[1] == const0_rtx)
return "clr%.b %0";
- if ((!TARGET_5200 || DATA_REG_P (operands[0]))
+ if ((!TARGET_COLDFIRE || DATA_REG_P (operands[0]))
&& GET_CODE (operands[1]) == CONST_INT
&& (INTVAL (operands[1]) & 255) == 255)
{
&& INTVAL (operands[1]) < 128
&& INTVAL (operands[1]) >= -128)
{
-#if defined(MOTOROLA) && !defined(CRDS)
- return "moveq%.l %1,%0";
-#else
return "moveq %1,%0";
-#endif
}
if (operands[1] == const0_rtx && ADDRESS_REG_P (operands[0]))
return "sub%.l %0,%0";
if (GET_CODE (operands[1]) != CONST_INT && CONSTANT_P (operands[1]))
return "move%.l %1,%0";
- /* 68k family (including the 5200 coldfire) does not support byte moves to
+ /* 68k family (including the 5200 ColdFire) does not support byte moves to
from address registers. */
if (ADDRESS_REG_P (operands[0]) || ADDRESS_REG_P (operands[1]))
return "move%.w %1,%0";
}
const char *
-output_move_stricthi (operands)
- rtx *operands;
+output_move_stricthi (rtx *operands)
{
if (operands[1] == const0_rtx
/* clr insns on 68000 read before writing.
This isn't so on the 68010, but we have no TARGET_68010. */
- && ((TARGET_68020 || TARGET_5200)
+ && ((TARGET_68020 || TARGET_COLDFIRE)
|| !(GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0]))))
return "clr%.w %0";
return "move%.w %1,%0";
}
const char *
-output_move_strictqi (operands)
- rtx *operands;
+output_move_strictqi (rtx *operands)
{
if (operands[1] == const0_rtx
/* clr insns on 68000 read before writing.
This isn't so on the 68010, but we have no TARGET_68010. */
- && ((TARGET_68020 || TARGET_5200)
+ && ((TARGET_68020 || TARGET_COLDFIRE)
|| !(GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0]))))
return "clr%.b %0";
return "move%.b %1,%0";
for moving operands[1] into operands[0] as a fullword. */
static const char *
-singlemove_string (operands)
- rtx *operands;
+singlemove_string (rtx *operands)
{
-#ifdef SUPPORT_SUN_FPA
- if (FPA_REG_P (operands[0]) || FPA_REG_P (operands[1]))
- return "fpmoves %1,%0";
-#endif
if (GET_CODE (operands[1]) == CONST_INT)
return output_move_simode_const (operands);
return "move%.l %1,%0";
with operands OPERANDS. */
const char *
-output_move_double (operands)
- rtx *operands;
+output_move_double (rtx *operands)
{
enum
{
{
operands[0] = XEXP (XEXP (operands[0], 0), 0);
if (size == 12)
- output_asm_insn ("sub%.l %#12,%0", operands);
+ output_asm_insn ("sub%.l #12,%0", operands);
else
- output_asm_insn ("subq%.l %#8,%0", operands);
+ output_asm_insn ("subq%.l #8,%0", operands);
if (GET_MODE (operands[1]) == XFmode)
operands[0] = gen_rtx_MEM (XFmode, operands[0]);
else if (GET_MODE (operands[0]) == DFmode)
{
operands[1] = XEXP (XEXP (operands[1], 0), 0);
if (size == 12)
- output_asm_insn ("sub%.l %#12,%1", operands);
+ output_asm_insn ("sub%.l #12,%1", operands);
else
- output_asm_insn ("subq%.l %#8,%1", operands);
+ output_asm_insn ("subq%.l #8,%1", operands);
if (GET_MODE (operands[1]) == XFmode)
operands[1] = gen_rtx_MEM (XFmode, operands[1]);
else if (GET_MODE (operands[1]) == DFmode)
}
else if (optype0 == OFFSOP)
{
- middlehalf[0] = adj_offsettable_operand (operands[0], 4);
- latehalf[0] = adj_offsettable_operand (operands[0], size - 4);
+ middlehalf[0] = adjust_address (operands[0], SImode, 4);
+ latehalf[0] = adjust_address (operands[0], SImode, size - 4);
}
else
{
}
else if (optype1 == OFFSOP)
{
- middlehalf[1] = adj_offsettable_operand (operands[1], 4);
- latehalf[1] = adj_offsettable_operand (operands[1], size - 4);
+ middlehalf[1] = adjust_address (operands[1], SImode, 4);
+ latehalf[1] = adjust_address (operands[1], SImode, size - 4);
}
else if (optype1 == CNSTOP)
{
if (optype0 == REGOP)
latehalf[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1);
else if (optype0 == OFFSOP)
- latehalf[0] = adj_offsettable_operand (operands[0], size - 4);
+ latehalf[0] = adjust_address (operands[0], SImode, size - 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], size - 4);
+ latehalf[1] = adjust_address (operands[1], SImode, size - 4);
else if (optype1 == CNSTOP)
split_double (operands[1], &operands[1], &latehalf[1]);
else
xops[0] = latehalf[0];
xops[1] = XEXP (operands[1], 0);
output_asm_insn ("lea %a1,%0", xops);
- if( GET_MODE (operands[1]) == XFmode )
+ if (GET_MODE (operands[1]) == XFmode )
{
operands[1] = gen_rtx_MEM (XFmode, latehalf[0]);
- middlehalf[1] = adj_offsettable_operand (operands[1], size-8);
- latehalf[1] = adj_offsettable_operand (operands[1], size-4);
+ middlehalf[1] = adjust_address (operands[1], DImode, size - 8);
+ latehalf[1] = adjust_address (operands[1], DImode, size - 4);
}
else
{
operands[1] = gen_rtx_MEM (DImode, latehalf[0]);
- latehalf[1] = adj_offsettable_operand (operands[1], size-4);
+ latehalf[1] = adjust_address (operands[1], DImode, size - 4);
}
}
else if (size == 12
if (addreg0 || addreg1)
abort ();
- /* Only the middle reg conflicts; simply put it last. */
+ /* Only the middle reg conflicts; simply put it last. */
output_asm_insn (singlemove_string (operands), operands);
output_asm_insn (singlemove_string (latehalf), latehalf);
output_asm_insn (singlemove_string (middlehalf), middlehalf);
if (addreg0)
{
if (size == 12)
- output_asm_insn ("addq%.l %#8,%0", &addreg0);
+ output_asm_insn ("addq%.l #8,%0", &addreg0);
else
- output_asm_insn ("addq%.l %#4,%0", &addreg0);
+ output_asm_insn ("addq%.l #4,%0", &addreg0);
}
if (addreg1)
{
if (size == 12)
- output_asm_insn ("addq%.l %#8,%0", &addreg1);
+ output_asm_insn ("addq%.l #8,%0", &addreg1);
else
- output_asm_insn ("addq%.l %#4,%0", &addreg1);
+ output_asm_insn ("addq%.l #4,%0", &addreg1);
}
/* Do that word. */
/* Undo the adds we just did. */
if (addreg0)
- output_asm_insn ("subq%.l %#4,%0", &addreg0);
+ output_asm_insn ("subq%.l #4,%0", &addreg0);
if (addreg1)
- output_asm_insn ("subq%.l %#4,%0", &addreg1);
+ output_asm_insn ("subq%.l #4,%0", &addreg1);
if (size == 12)
{
output_asm_insn (singlemove_string (middlehalf), middlehalf);
if (addreg0)
- output_asm_insn ("subq%.l %#4,%0", &addreg0);
+ output_asm_insn ("subq%.l #4,%0", &addreg0);
if (addreg1)
- output_asm_insn ("subq%.l %#4,%0", &addreg1);
+ output_asm_insn ("subq%.l #4,%0", &addreg1);
}
/* Do low-numbered word. */
if (size == 12)
{
if (addreg0)
- output_asm_insn ("addq%.l %#4,%0", &addreg0);
+ output_asm_insn ("addq%.l #4,%0", &addreg0);
if (addreg1)
- output_asm_insn ("addq%.l %#4,%0", &addreg1);
+ output_asm_insn ("addq%.l #4,%0", &addreg1);
output_asm_insn (singlemove_string (middlehalf), middlehalf);
}
/* Make any unoffsettable addresses point at high-numbered word. */
if (addreg0)
- output_asm_insn ("addq%.l %#4,%0", &addreg0);
+ output_asm_insn ("addq%.l #4,%0", &addreg0);
if (addreg1)
- output_asm_insn ("addq%.l %#4,%0", &addreg1);
+ output_asm_insn ("addq%.l #4,%0", &addreg1);
/* Do that word. */
output_asm_insn (singlemove_string (latehalf), latehalf);
if (addreg0)
{
if (size == 12)
- output_asm_insn ("subq%.l %#8,%0", &addreg0);
+ output_asm_insn ("subq%.l #8,%0", &addreg0);
else
- output_asm_insn ("subq%.l %#4,%0", &addreg0);
+ output_asm_insn ("subq%.l #4,%0", &addreg0);
}
if (addreg1)
{
if (size == 12)
- output_asm_insn ("subq%.l %#8,%0", &addreg1);
+ output_asm_insn ("subq%.l #8,%0", &addreg1);
else
- output_asm_insn ("subq%.l %#4,%0", &addreg1);
+ output_asm_insn ("subq%.l #4,%0", &addreg1);
}
return "";
ADDR can be effectively incremented by incrementing REG. */
static rtx
-find_addr_reg (addr)
- rtx addr;
+find_addr_reg (rtx addr)
{
while (GET_CODE (addr) == PLUS)
{
abort ();
}
-/* Output assembler code to perform a 32 bit 3 operand add. */
+/* Output assembler code to perform a 32-bit 3-operand add. */
const char *
-output_addsi3 (operands)
- rtx *operands;
+output_addsi3 (rtx *operands)
{
if (! operands_match_p (operands[0], operands[1]))
{
/* These insns can result from reloads to access
stack slots over 64k from the frame pointer. */
if (GET_CODE (operands[2]) == CONST_INT
- && INTVAL (operands[2]) + 0x8000 >= (unsigned) 0x10000)
+ && (INTVAL (operands[2]) < -32768 || INTVAL (operands[2]) > 32767))
return "move%.l %2,%0\n\tadd%.l %1,%0";
-#ifdef SGS
- if (GET_CODE (operands[2]) == REG)
- return "lea 0(%1,%2.l),%0";
- else
- return "lea %c2(%1),%0";
-#else /* not SGS */
-#ifdef MOTOROLA
- if (GET_CODE (operands[2]) == REG)
- return "lea (%1,%2.l),%0";
- else
- return "lea (%c2,%1),%0";
-#else /* not MOTOROLA (MIT syntax) */
if (GET_CODE (operands[2]) == REG)
- return "lea %1@(0,%2:l),%0";
- else
- return "lea %1@(%c2),%0";
-#endif /* not MOTOROLA */
-#endif /* not SGS */
+ return MOTOROLA ? "lea (%1,%2.l),%0" : "lea %1@(0,%2:l),%0";
+ return MOTOROLA ? "lea (%c2,%1),%0" : "lea %1@(%c2),%0";
}
if (GET_CODE (operands[2]) == CONST_INT)
{
-#ifndef NO_ADDSUB_Q
if (INTVAL (operands[2]) > 0
&& INTVAL (operands[2]) <= 8)
return "addq%.l %2,%0";
}
/* On the CPU32 it is faster to use two addql instructions to
add a small integer (8 < N <= 16) to a register.
- Likewise for subql. */
+ Likewise for subql. */
if (TARGET_CPU32 && REG_P (operands[0]))
{
if (INTVAL (operands[2]) > 8
&& INTVAL (operands[2]) <= 16)
{
operands[2] = GEN_INT (INTVAL (operands[2]) - 8);
- return "addq%.l %#8,%0\n\taddq%.l %2,%0";
+ return "addq%.l #8,%0\n\taddq%.l %2,%0";
}
if (INTVAL (operands[2]) < -8
&& INTVAL (operands[2]) >= -16)
{
operands[2] = GEN_INT (- INTVAL (operands[2]) - 8);
- return "subq%.l %#8,%0\n\tsubq%.l %2,%0";
+ return "subq%.l #8,%0\n\tsubq%.l %2,%0";
}
}
-#endif
if (ADDRESS_REG_P (operands[0])
&& INTVAL (operands[2]) >= -0x8000
&& INTVAL (operands[2]) < 0x8000)
if (TARGET_68040)
return "add%.w %2,%0";
else
-#ifdef MOTOROLA
- return "lea (%c2,%0),%0";
-#else
- return "lea %0@(%c2),%0";
-#endif
+ return MOTOROLA ? "lea (%c2,%0),%0" : "lea %0@(%c2),%0";
}
}
return "add%.l %2,%0";
some or all of the saved cc's so they won't be used. */
void
-notice_update_cc (exp, insn)
- rtx exp;
- rtx insn;
+notice_update_cc (rtx exp, rtx insn)
{
- /* If the cc is being set from the fpa and the expression is not an
- explicit floating point test instruction (which has code to deal with
- this), reinit the CC. */
- if (((cc_status.value1 && FPA_REG_P (cc_status.value1))
- || (cc_status.value2 && FPA_REG_P (cc_status.value2)))
- && !(GET_CODE (exp) == PARALLEL
- && GET_CODE (XVECEXP (exp, 0, 0)) == SET
- && XEXP (XVECEXP (exp, 0, 0), 0) == cc0_rtx))
- {
- CC_STATUS_INIT;
- }
- else if (GET_CODE (exp) == SET)
+ if (GET_CODE (exp) == SET)
{
if (GET_CODE (SET_SRC (exp)) == CALL)
{
&& ADDRESS_REG_P (cc_status.value2)
&& GET_MODE (cc_status.value2) == QImode)
CC_STATUS_INIT;
- if (cc_status.value2 != 0
- && !(cc_status.value1 && FPA_REG_P (cc_status.value1)))
+ if (cc_status.value2 != 0)
switch (GET_CODE (cc_status.value2))
{
- case PLUS: case MINUS: case MULT:
- case DIV: case UDIV: case MOD: case UMOD: case NEG:
-#if 0 /* These instructions always clear the overflow bit */
case ASHIFT: case ASHIFTRT: case LSHIFTRT:
case ROTATE: case ROTATERT:
-#endif
+ /* These instructions always clear the overflow bit, and set
+ the carry to the bit shifted out. */
+ /* ??? We don't currently have a way to signal carry not valid,
+ nor do we check for it in the branch insns. */
+ CC_STATUS_INIT;
+ break;
+
+ case PLUS: case MINUS: case MULT:
+ case DIV: case UDIV: case MOD: case UMOD: case NEG:
if (GET_MODE (cc_status.value2) != VOIDmode)
cc_status.flags |= CC_NO_OVERFLOW;
break;
/* (SET r1 (ZERO_EXTEND r2)) on this machine
ends with a move insn moving r2 in r2's mode.
Thus, the cc's are set for r2.
- This can set N bit spuriously. */
+ This can set N bit spuriously. */
cc_status.flags |= CC_NOT_NEGATIVE;
default:
&& reg_overlap_mentioned_p (cc_status.value1, cc_status.value2))
cc_status.value2 = 0;
if (((cc_status.value1 && FP_REG_P (cc_status.value1))
- || (cc_status.value2 && FP_REG_P (cc_status.value2)))
- && !((cc_status.value1 && FPA_REG_P (cc_status.value1))
- || (cc_status.value2 && FPA_REG_P (cc_status.value2))))
+ || (cc_status.value2 && FP_REG_P (cc_status.value2))))
cc_status.flags = CC_IN_68881;
}
\f
const char *
-output_move_const_double (operands)
- rtx *operands;
+output_move_const_double (rtx *operands)
{
-#ifdef SUPPORT_SUN_FPA
- if (TARGET_FPA && FPA_REG_P (operands[0]))
- {
- int code = standard_sun_fpa_constant_p (operands[1]);
-
- if (code != 0)
- {
- static char buf[40];
+ int code = standard_68881_constant_p (operands[1]);
- sprintf (buf, "fpmove%%.d %%%%%d,%%0", code & 0x1ff);
- return buf;
- }
- return "fpmove%.d %1,%0";
- }
- else
-#endif
+ if (code != 0)
{
- int code = standard_68881_constant_p (operands[1]);
-
- if (code != 0)
- {
- static char buf[40];
+ static char buf[40];
- sprintf (buf, "fmovecr %%#0x%x,%%0", code & 0xff);
- return buf;
- }
- return "fmove%.d %1,%0";
+ sprintf (buf, "fmovecr #0x%x,%%0", code & 0xff);
+ return buf;
}
+ return "fmove%.d %1,%0";
}
const char *
-output_move_const_single (operands)
- rtx *operands;
+output_move_const_single (rtx *operands)
{
-#ifdef SUPPORT_SUN_FPA
- if (TARGET_FPA)
- {
- int code = standard_sun_fpa_constant_p (operands[1]);
-
- if (code != 0)
- {
- static char buf[40];
+ int code = standard_68881_constant_p (operands[1]);
- sprintf (buf, "fpmove%%.s %%%%%d,%%0", code & 0x1ff);
- return buf;
- }
- return "fpmove%.s %1,%0";
- }
- else
-#endif /* defined SUPPORT_SUN_FPA */
+ if (code != 0)
{
- int code = standard_68881_constant_p (operands[1]);
-
- if (code != 0)
- {
- static char buf[40];
+ static char buf[40];
- sprintf (buf, "fmovecr %%#0x%x,%%0", code & 0xff);
- return buf;
- }
- return "fmove%.s %f1,%0";
+ sprintf (buf, "fmovecr #0x%x,%%0", code & 0xff);
+ return buf;
}
+ return "fmove%.s %f1,%0";
}
/* Return nonzero if X, a CONST_DOUBLE, has a value that we can get
The value, anded with 0xff, gives the code to use in fmovecr
to get the desired constant. */
-/* This code has been fixed for cross-compilation. */
+/* This code has been fixed for cross-compilation. */
static int inited_68881_table = 0;
"1e16"
};
-int codes_68881[7] = {
+static const int codes_68881[7] = {
0x0f,
0x32,
0x33,
REAL_VALUE_TYPE values_68881[7];
/* Set up values_68881 array by converting the decimal values
- strings_68881 to binary. */
+ strings_68881 to binary. */
void
-init_68881_table ()
+init_68881_table (void)
{
int i;
REAL_VALUE_TYPE r;
}
int
-standard_68881_constant_p (x)
- rtx x;
+standard_68881_constant_p (rtx x)
{
REAL_VALUE_TYPE r;
int i;
-#ifdef NO_ASM_FMOVECR
- return 0;
-#endif
-
/* fmovecr must be emulated on the 68040 and 68060, so it shouldn't be
- used at all on those chips. */
+ used at all on those chips. */
if (TARGET_68040 || TARGET_68060)
return 0;
-#ifndef REAL_ARITHMETIC
-#if HOST_FLOAT_FORMAT != TARGET_FLOAT_FORMAT
- if (! flag_pretend_float)
- return 0;
-#endif
-#endif
-
if (! inited_68881_table)
init_68881_table ();
or 0 if X is not a power of 2. */
int
-floating_exact_log2 (x)
- rtx x;
+floating_exact_log2 (rtx x)
{
REAL_VALUE_TYPE r, r1;
- int i;
-
-#ifndef REAL_ARITHMETIC
-#if HOST_FLOAT_FORMAT != TARGET_FLOAT_FORMAT
- if (! flag_pretend_float)
- return 0;
-#endif
-#endif
+ int exp;
REAL_VALUE_FROM_CONST_DOUBLE (r, x);
- if (REAL_VALUES_LESS (r, dconst0))
- return 0;
-
- r1 = dconst1;
- i = 0;
- while (REAL_VALUES_LESS (r1, r))
- {
- r1 = REAL_VALUE_LDEXP (dconst1, i);
- if (REAL_VALUES_EQUAL (r1, r))
- return i;
- i = i + 1;
- }
- return 0;
-}
-\f
-#ifdef SUPPORT_SUN_FPA
-/* Return nonzero if X, a CONST_DOUBLE, has a value that we can get
- from the Sun FPA's constant RAM.
- The value returned, anded with 0x1ff, gives the code to use in fpmove
- to get the desired constant. */
-
-static int inited_FPA_table = 0;
-
-static const char *const strings_FPA[38] = {
-/* small rationals */
- "0.0",
- "1.0",
- "0.5",
- "-1.0",
- "2.0",
- "3.0",
- "4.0",
- "8.0",
- "0.25",
- "0.125",
- "10.0",
- "-0.5",
-/* Decimal equivalents of double precision values */
- "2.718281828459045091", /* D_E */
- "6.283185307179586477", /* 2 pi */
- "3.141592653589793116", /* D_PI */
- "1.570796326794896619", /* pi/2 */
- "1.414213562373095145", /* D_SQRT2 */
- "0.7071067811865475244", /* 1/sqrt(2) */
- "-1.570796326794896619", /* -pi/2 */
- "1.442695040888963387", /* D_LOG2ofE */
- "3.321928024887362182", /* D_LOG2of10 */
- "0.6931471805599452862", /* D_LOGEof2 */
- "2.302585092994045901", /* D_LOGEof10 */
- "0.3010299956639811980", /* D_LOG10of2 */
- "0.4342944819032518167", /* D_LOG10ofE */
-/* Decimal equivalents of single precision values */
- "2.718281745910644531", /* S_E */
- "6.283185307179586477", /* 2 pi */
- "3.141592741012573242", /* S_PI */
- "1.570796326794896619", /* pi/2 */
- "1.414213538169860840", /* S_SQRT2 */
- "0.7071067811865475244", /* 1/sqrt(2) */
- "-1.570796326794896619", /* -pi/2 */
- "1.442695021629333496", /* S_LOG2ofE */
- "3.321928024291992188", /* S_LOG2of10 */
- "0.6931471824645996094", /* S_LOGEof2 */
- "2.302585124969482442", /* S_LOGEof10 */
- "0.3010300099849700928", /* S_LOG10of2 */
- "0.4342944920063018799", /* S_LOG10ofE */
-};
-
-
-int codes_FPA[38] = {
-/* small rationals */
- 0x200,
- 0xe,
- 0xf,
- 0x10,
- 0x11,
- 0xb1,
- 0x12,
- 0x13,
- 0x15,
- 0x16,
- 0x17,
- 0x2e,
-/* double precision */
- 0x8,
- 0x9,
- 0xa,
- 0xb,
- 0xc,
- 0xd,
- 0x27,
- 0x28,
- 0x29,
- 0x2a,
- 0x2b,
- 0x2c,
- 0x2d,
-/* single precision */
- 0x8,
- 0x9,
- 0xa,
- 0xb,
- 0xc,
- 0xd,
- 0x27,
- 0x28,
- 0x29,
- 0x2a,
- 0x2b,
- 0x2c,
- 0x2d
- };
-
-REAL_VALUE_TYPE values_FPA[38];
-
-/* This code has been fixed for cross-compilation. */
-
-void
-init_FPA_table ()
-{
- enum machine_mode mode;
- int i;
- REAL_VALUE_TYPE r;
-
- mode = DFmode;
- for (i = 0; i < 38; i++)
- {
- if (i == 25)
- mode = SFmode;
- r = REAL_VALUE_ATOF (strings_FPA[i], mode);
- values_FPA[i] = r;
- }
- inited_FPA_table = 1;
-}
-
-
-int
-standard_sun_fpa_constant_p (x)
- rtx x;
-{
- REAL_VALUE_TYPE r;
- int i;
-
-#ifndef REAL_ARITHMETIC
-#if HOST_FLOAT_FORMAT != TARGET_FLOAT_FORMAT
- if (! flag_pretend_float)
+ if (REAL_VALUES_LESS (r, dconst1))
return 0;
-#endif
-#endif
-
- if (! inited_FPA_table)
- init_FPA_table ();
- REAL_VALUE_FROM_CONST_DOUBLE (r, x);
-
- for (i=0; i<12; i++)
- {
- if (REAL_VALUES_EQUAL (r, values_FPA[i]))
- return (codes_FPA[i]);
- }
+ exp = real_exponent (&r);
+ real_2expN (&r1, exp);
+ if (REAL_VALUES_EQUAL (r1, r))
+ return exp;
- if (GET_MODE (x) == SFmode)
- {
- for (i=25; i<38; i++)
- {
- if (REAL_VALUES_EQUAL (r, values_FPA[i]))
- return (codes_FPA[i]);
- }
- }
- else
- {
- for (i=12; i<25; i++)
- {
- if (REAL_VALUES_EQUAL (r, values_FPA[i]))
- return (codes_FPA[i]);
- }
- }
- return 0x0;
+ return 0;
}
-#endif /* define SUPPORT_SUN_FPA */
\f
/* A C compound statement to output to stdio stream STREAM the
assembler syntax for an instruction operand X. X is an RTL
'@' for a reference to the top word on the stack:
sp@, (sp) or (%sp) depending on the style of syntax.
'#' for an immediate operand prefix (# in MIT and Motorola syntax
- but & in SGS syntax, $ in CRDS/UNOS syntax).
+ but & in SGS syntax).
'!' for the cc register (used in an `and to cc' insn).
'$' for the letter `s' in an op code, but only on the 68040.
'&' for the letter `d' in an op code, but only on the 68040.
'f' for float insn (print a CONST_DOUBLE as a float rather than in hex)
'o' for operands to go directly to output_operand_address (bypassing
print_operand_address--used only for SYMBOL_REFs under TARGET_PCREL)
- 'w' for FPA insn (print a CONST_DOUBLE as a SunFPA constant rather
- than directly). Second part of 'y' below.
'x' for float insn (print a CONST_DOUBLE as a float rather than in hex),
or print pair of registers as rx:ry.
- 'y' for a FPA insn (print pair of registers as rx:ry). This also outputs
- CONST_DOUBLE's as SunFPA constant RAM registers if
- possible, so it should not be used except for the SunFPA.
*/
void
-print_operand (file, op, letter)
- FILE *file; /* file to write to */
- rtx op; /* operand to print */
- int letter; /* %<letter> or 0 */
+print_operand (FILE *file, rtx op, int letter)
{
-#ifdef SUPPORT_SUN_FPA
- int i;
-#endif
-
if (letter == '.')
{
-#if defined (MOTOROLA) && !defined (CRDS)
- asm_fprintf (file, ".");
-#endif
+ if (MOTOROLA)
+ fprintf (file, ".");
}
else if (letter == '#')
- {
- asm_fprintf (file, "%0I");
- }
+ asm_fprintf (file, "%I");
else if (letter == '-')
- {
-#ifdef MOTOROLA
- asm_fprintf (file, "-(%Rsp)");
-#else
- asm_fprintf (file, "%Rsp@-");
-#endif
- }
+ asm_fprintf (file, MOTOROLA ? "-(%Rsp)" : "%Rsp@-");
else if (letter == '+')
- {
-#ifdef MOTOROLA
- asm_fprintf (file, "(%Rsp)+");
-#else
- asm_fprintf (file, "%Rsp@+");
-#endif
- }
+ asm_fprintf (file, MOTOROLA ? "(%Rsp)+" : "%Rsp@+");
else if (letter == '@')
- {
-#ifdef MOTOROLA
- asm_fprintf (file, "(%Rsp)");
-#else
- asm_fprintf (file, "%Rsp@");
-#endif
- }
+ asm_fprintf (file, MOTOROLA ? "(%Rsp)" : "%Rsp@");
else if (letter == '!')
- {
- asm_fprintf (file, "%Rfpcr");
- }
+ asm_fprintf (file, "%Rfpcr");
else if (letter == '$')
{
if (TARGET_68040_ONLY)
- {
- fprintf (file, "s");
- }
+ fprintf (file, "s");
}
else if (letter == '&')
{
if (TARGET_68040_ONLY)
- {
- fprintf (file, "d");
- }
+ fprintf (file, "d");
}
else if (letter == '/')
- {
- asm_fprintf (file, "%R");
- }
+ asm_fprintf (file, "%R");
else if (letter == 'o')
{
/* This is only for direct addresses with TARGET_PCREL */
if (GET_CODE (op) != MEM || GET_CODE (XEXP (op, 0)) != SYMBOL_REF
- || !TARGET_PCREL)
+ || !TARGET_PCREL)
abort ();
output_addr_const (file, XEXP (op, 0));
}
else if (GET_CODE (op) == REG)
{
-#ifdef SUPPORT_SUN_FPA
- if (REGNO (op) < 16
- && (letter == 'y' || letter == 'x')
- && GET_MODE (op) == DFmode)
- {
- fprintf (file, "%s:%s", reg_names[REGNO (op)],
- reg_names[REGNO (op)+1]);
- }
+ if (letter == 'R')
+ /* Print out the second register name of a register pair.
+ I.e., R (6) => 7. */
+ fputs (M68K_REGNAME(REGNO (op) + 1), file);
else
-#endif
- {
- if (letter == 'R')
- /* Print out the second register name of a register pair.
- I.e., R (6) => 7. */
- fputs (reg_names[REGNO (op) + 1], file);
- else
- fputs (reg_names[REGNO (op)], file);
- }
+ fputs (M68K_REGNAME(REGNO (op)), file);
}
else if (GET_CODE (op) == MEM)
{
&& !(GET_CODE (XEXP (op, 0)) == CONST_INT
&& INTVAL (XEXP (op, 0)) < 0x8000
&& INTVAL (XEXP (op, 0)) >= -0x8000))
- {
-#ifdef MOTOROLA
- fprintf (file, ".l");
-#else
- fprintf (file, ":l");
-#endif
- }
- }
-#ifdef SUPPORT_SUN_FPA
- else if ((letter == 'y' || letter == 'w')
- && GET_CODE (op) == CONST_DOUBLE
- && (i = standard_sun_fpa_constant_p (op)))
- {
- fprintf (file, "%%%d", i & 0x1ff);
+ fprintf (file, MOTOROLA ? ".l" : ":l");
}
-#endif
else if (GET_CODE (op) == CONST_DOUBLE && GET_MODE (op) == SFmode)
{
REAL_VALUE_TYPE r;
{
/* Use `print_operand_address' instead of `output_addr_const'
to ensure that we print relevant PIC stuff. */
- asm_fprintf (file, "%0I");
+ asm_fprintf (file, "%I");
if (TARGET_PCREL
&& (GET_CODE (op) == SYMBOL_REF || GET_CODE (op) == CONST))
print_operand_address (file, op);
macro. See m68k/sgs.h for an example; for versions without the bug.
Some assemblers refuse all the above solutions. The workaround is to
emit "K(pc,d0.l*2)" with K being a small constant known to give the
- right behaviour.
+ right behavior.
They also do not like things like "pea 1.w", so we simple leave off
the .w on small constants.
offset is output in word mode (eg movel a5@(_foo:w), a0). When generating
-fPIC code the offset is output in long mode (eg movel a5@(_foo:l), a0) */
-#ifndef ASM_OUTPUT_CASE_FETCH
-#ifdef MOTOROLA
-#ifdef SGS
-#define ASM_OUTPUT_CASE_FETCH(file, labelno, regname)\
- asm_fprintf (file, "%LLD%d(%Rpc,%s.", labelno, regname)
-#else
-#define ASM_OUTPUT_CASE_FETCH(file, labelno, regname)\
+#if MOTOROLA
+# define ASM_OUTPUT_CASE_FETCH(file, labelno, regname)\
asm_fprintf (file, "%LL%d-%LLI%d.b(%Rpc,%s.", labelno, labelno, regname)
-#endif
-#else
-#define ASM_OUTPUT_CASE_FETCH(file, labelno, regname)\
+#else /* !MOTOROLA */
+# define ASM_OUTPUT_CASE_FETCH(file, labelno, regname)\
asm_fprintf (file, "%Rpc@(%LL%d-%LLI%d-2:b,%s:", labelno, labelno, regname)
-#endif
-#endif /* ASM_OUTPUT_CASE_FETCH */
+#endif /* !MOTOROLA */
void
-print_operand_address (file, addr)
- FILE *file;
- rtx addr;
+print_operand_address (FILE *file, rtx addr)
{
register rtx reg1, reg2, breg, ireg;
rtx offset;
switch (GET_CODE (addr))
{
case REG:
-#ifdef MOTOROLA
- fprintf (file, "(%s)", reg_names[REGNO (addr)]);
-#else
- fprintf (file, "%s@", reg_names[REGNO (addr)]);
-#endif
+ fprintf (file, MOTOROLA ? "(%s)" : "%s@", M68K_REGNAME(REGNO (addr)));
break;
case PRE_DEC:
-#ifdef MOTOROLA
- fprintf (file, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]);
-#else
- fprintf (file, "%s@-", reg_names[REGNO (XEXP (addr, 0))]);
-#endif
+ fprintf (file, MOTOROLA ? "-(%s)" : "%s@-",
+ M68K_REGNAME(REGNO (XEXP (addr, 0))));
break;
case POST_INC:
-#ifdef MOTOROLA
- fprintf (file, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]);
-#else
- fprintf (file, "%s@+", reg_names[REGNO (XEXP (addr, 0))]);
-#endif
+ fprintf (file, MOTOROLA ? "(%s)+" : "%s@+",
+ M68K_REGNAME(REGNO (XEXP (addr, 0))));
break;
case PLUS:
reg1 = reg2 = ireg = breg = offset = 0;
{
ASM_OUTPUT_CASE_FETCH (file,
CODE_LABEL_NUMBER (XEXP (addr, 0)),
- reg_names[REGNO (XEXP (ireg, 0))]);
+ M68K_REGNAME(REGNO (XEXP (ireg, 0))));
fprintf (file, "w");
}
else
{
ASM_OUTPUT_CASE_FETCH (file,
CODE_LABEL_NUMBER (XEXP (addr, 0)),
- reg_names[REGNO (ireg)]);
+ M68K_REGNAME(REGNO (ireg)));
fprintf (file, "l");
}
if (scale != 1)
- {
-#ifdef MOTOROLA
- fprintf (file, "*%d", scale);
-#else
- fprintf (file, ":%d", scale);
-#endif
- }
+ fprintf (file, MOTOROLA ? "*%d" : ":%d", scale);
putc (')', file);
break;
}
{
ASM_OUTPUT_CASE_FETCH (file,
CODE_LABEL_NUMBER (XEXP (addr, 0)),
- reg_names[REGNO (breg)]);
+ M68K_REGNAME(REGNO (breg)));
fprintf (file, "l)");
break;
}
{
abort ();
}
-#ifdef MOTOROLA
- if (addr != 0)
+ if (MOTOROLA)
{
- output_addr_const (file, addr);
- if (flag_pic && (breg == pic_offset_table_rtx))
+ if (addr != 0)
{
- fprintf (file, "@GOT");
- if (flag_pic == 1)
- fprintf (file, ".w");
+ output_addr_const (file, addr);
+ if (flag_pic && (breg == pic_offset_table_rtx))
+ {
+ fprintf (file, "@GOT");
+ if (flag_pic == 1)
+ fprintf (file, ".w");
+ }
}
+ fprintf (file, "(%s", M68K_REGNAME(REGNO (breg)));
+ if (ireg != 0)
+ putc (',', file);
}
- fprintf (file, "(%s", reg_names[REGNO (breg)]);
- if (ireg != 0)
- {
- putc (',', file);
- }
-#else
- fprintf (file, "%s@(", reg_names[REGNO (breg)]);
- if (addr != 0)
- {
- output_addr_const (file, addr);
- if ((flag_pic == 1) && (breg == pic_offset_table_rtx))
- fprintf (file, ":w");
- if ((flag_pic == 2) && (breg == pic_offset_table_rtx))
- fprintf (file, ":l");
- }
- if (addr != 0 && ireg != 0)
+ else /* !MOTOROLA */
{
- putc (',', file);
- }
-#endif
+ fprintf (file, "%s@(", M68K_REGNAME(REGNO (breg)));
+ if (addr != 0)
+ {
+ output_addr_const (file, addr);
+ if (breg == pic_offset_table_rtx)
+ switch (flag_pic)
+ {
+ case 1:
+ fprintf (file, ":w"); break;
+ case 2:
+ fprintf (file, ":l"); break;
+ default:
+ break;
+ }
+ if (ireg != 0)
+ putc (',', file);
+ }
+ } /* !MOTOROLA */
if (ireg != 0 && GET_CODE (ireg) == MULT)
{
scale = INTVAL (XEXP (ireg, 1));
ireg = XEXP (ireg, 0);
}
if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND)
- {
-#ifdef MOTOROLA
- fprintf (file, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]);
-#else
- fprintf (file, "%s:w", reg_names[REGNO (XEXP (ireg, 0))]);
-#endif
- }
+ fprintf (file, MOTOROLA ? "%s.w" : "%s:w",
+ M68K_REGNAME(REGNO (XEXP (ireg, 0))));
else if (ireg != 0)
- {
-#ifdef MOTOROLA
- fprintf (file, "%s.l", reg_names[REGNO (ireg)]);
-#else
- fprintf (file, "%s:l", reg_names[REGNO (ireg)]);
-#endif
- }
+ fprintf (file, MOTOROLA ? "%s.l" : "%s:l",
+ M68K_REGNAME(REGNO (ireg)));
if (scale != 1)
- {
-#ifdef MOTOROLA
- fprintf (file, "*%d", scale);
-#else
- fprintf (file, ":%d", scale);
-#endif
- }
+ fprintf (file, MOTOROLA ? "*%d" : ":%d", scale);
putc (')', file);
break;
}
else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF
- && ! (flag_pic && reg1 == pic_offset_table_rtx))
+ && ! (flag_pic && reg1 == pic_offset_table_rtx))
{
ASM_OUTPUT_CASE_FETCH (file,
CODE_LABEL_NUMBER (XEXP (addr, 0)),
- reg_names[REGNO (reg1)]);
+ M68K_REGNAME(REGNO (reg1)));
fprintf (file, "l)");
break;
}
&& INTVAL (addr) < 0x8000
&& INTVAL (addr) >= -0x8000)
{
-#ifdef MOTOROLA
-#ifdef SGS
- /* Many SGS assemblers croak on size specifiers for constants. */
- fprintf (file, "%d", INTVAL (addr));
-#else
- fprintf (file, "%d.w", INTVAL (addr));
-#endif
-#else
- fprintf (file, "%d:w", INTVAL (addr));
-#endif
+ fprintf (file, MOTOROLA ? "%d.w" : "%d:w", (int) INTVAL (addr));
}
else if (GET_CODE (addr) == CONST_INT)
{
- fprintf (file,
-#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
- "%d",
-#else
- "%ld",
-#endif
- INTVAL (addr));
+ fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (addr));
}
else if (TARGET_PCREL)
{
insn we are checking for redundancy. TARGET is the register set by the
clear insn. */
-int
-strict_low_part_peephole_ok (mode, first_insn, target)
- enum machine_mode mode;
- rtx first_insn;
- rtx target;
+bool
+strict_low_part_peephole_ok (enum machine_mode mode, rtx first_insn,
+ rtx target)
{
rtx p;
{
/* If it isn't an insn, then give up. */
if (GET_CODE (p) != INSN)
- return 0;
+ return false;
if (reg_set_p (target, p))
{
/* If it isn't an easy to recognize insn, then give up. */
if (! set)
- return 0;
+ return false;
dest = SET_DEST (set);
first_insn is redundant. */
if (rtx_equal_p (dest, target)
&& SET_SRC (set) == const0_rtx)
- return 1;
+ return true;
else if (GET_CODE (dest) == STRICT_LOW_PART
&& GET_CODE (XEXP (dest, 0)) == REG
&& REGNO (XEXP (dest, 0)) == REGNO (target)
we are using, so it is safe. */
;
else
- return 0;
+ return false;
}
p = prev_nonnote_insn (p);
-
}
- return 0;
+ return false;
}
/* Accept integer operands in the range 0..0xffffffff. We have to check the
need some extra crud to make it work when hosted on 64-bit machines. */
int
-const_uint32_operand (op, mode)
- rtx op;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+const_uint32_operand (rtx op, enum machine_mode mode)
{
+ /* It doesn't make sense to ask this question with a mode that is
+ not larger than 32 bits. */
+ if (GET_MODE_BITSIZE (mode) <= 32)
+ abort ();
+
#if HOST_BITS_PER_WIDE_INT > 32
/* All allowed constants will fit a CONST_INT. */
return (GET_CODE (op) == CONST_INT
&& (INTVAL (op) >= 0 && INTVAL (op) <= 0xffffffffL));
#else
- return ((GET_CODE (op) == CONST_INT && INTVAL (op) >= 0)
+ return (GET_CODE (op) == CONST_INT
|| (GET_CODE (op) == CONST_DOUBLE && CONST_DOUBLE_HIGH (op) == 0));
#endif
}
contexts. */
int
-const_sint32_operand (op, mode)
- rtx op;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+const_sint32_operand (rtx op, enum machine_mode mode)
{
+ /* It doesn't make sense to ask this question with a mode that is
+ not larger than 32 bits. */
+ if (GET_MODE_BITSIZE (mode) <= 32)
+ abort ();
+
/* All allowed constants will fit a CONST_INT. */
return (GET_CODE (op) == CONST_INT
&& (INTVAL (op) >= (-0x7fffffff - 1) && INTVAL (op) <= 0x7fffffff));
/* Operand predicates for implementing asymmetric pc-relative addressing
on m68k. The m68k supports pc-relative addressing (mode 7, register 2)
- when used as a source operand, but not as a destintation operand.
+ when used as a source operand, but not as a destination operand.
We model this by restricting the meaning of the basic predicates
(general_operand, memory_operand, etc) to forbid the use of this
is specified. */
int
-general_src_operand (op, mode)
- rtx op;
- enum machine_mode mode;
+general_src_operand (rtx op, enum machine_mode mode)
{
if (TARGET_PCREL
&& GET_CODE (op) == MEM
is specified. */
int
-nonimmediate_src_operand (op, mode)
- rtx op;
- enum machine_mode mode;
+nonimmediate_src_operand (rtx op, enum machine_mode mode)
{
if (TARGET_PCREL && GET_CODE (op) == MEM
&& (GET_CODE (XEXP (op, 0)) == SYMBOL_REF
is specified. */
int
-memory_src_operand (op, mode)
- rtx op;
- enum machine_mode mode;
+memory_src_operand (rtx op, enum machine_mode mode)
{
if (TARGET_PCREL && GET_CODE (op) == MEM
&& (GET_CODE (XEXP (op, 0)) == SYMBOL_REF
"general_src_operand". */
int
-pcrel_address (op, mode)
- rtx op;
- enum machine_mode mode ATTRIBUTE_UNUSED;
+pcrel_address (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
return (GET_CODE (op) == SYMBOL_REF || GET_CODE (op) == LABEL_REF
|| GET_CODE (op) == CONST);
}
const char *
-output_andsi3 (operands)
- rtx *operands;
+output_andsi3 (rtx *operands)
{
int logval;
if (GET_CODE (operands[2]) == CONST_INT
- && (INTVAL (operands[2]) | 0xffff) == 0xffffffff
+ && (INTVAL (operands[2]) | 0xffff) == (HOST_WIDE_INT)0xffffffff
&& (DATA_REG_P (operands[0])
|| offsettable_memref_p (operands[0]))
- && !TARGET_5200)
+ && !TARGET_COLDFIRE)
{
if (GET_CODE (operands[0]) != REG)
- operands[0] = adj_offsettable_operand (operands[0], 2);
+ operands[0] = adjust_address (operands[0], HImode, 2);
operands[2] = GEN_INT (INTVAL (operands[2]) & 0xffff);
/* Do not delete a following tstl %0 insn; that would be incorrect. */
CC_STATUS_INIT;
}
else
{
- operands[0] = adj_offsettable_operand (operands[0], 3 - (logval / 8));
+ operands[0] = adjust_address (operands[0], SImode, 3 - (logval / 8));
operands[1] = GEN_INT (logval % 8);
}
/* This does not set condition codes in a standard way. */
}
const char *
-output_iorsi3 (operands)
- rtx *operands;
+output_iorsi3 (rtx *operands)
{
register int logval;
if (GET_CODE (operands[2]) == CONST_INT
&& INTVAL (operands[2]) >> 16 == 0
&& (DATA_REG_P (operands[0])
|| offsettable_memref_p (operands[0]))
- && !TARGET_5200)
+ && !TARGET_COLDFIRE)
{
if (GET_CODE (operands[0]) != REG)
- operands[0] = adj_offsettable_operand (operands[0], 2);
+ operands[0] = adjust_address (operands[0], HImode, 2);
/* Do not delete a following tstl %0 insn; that would be incorrect. */
CC_STATUS_INIT;
if (INTVAL (operands[2]) == 0xffff)
|| offsettable_memref_p (operands[0])))
{
if (DATA_REG_P (operands[0]))
- {
- operands[1] = GEN_INT (logval);
- }
+ operands[1] = GEN_INT (logval);
else
{
- operands[0] = adj_offsettable_operand (operands[0], 3 - (logval / 8));
+ operands[0] = adjust_address (operands[0], SImode, 3 - (logval / 8));
operands[1] = GEN_INT (logval % 8);
}
CC_STATUS_INIT;
}
const char *
-output_xorsi3 (operands)
- rtx *operands;
+output_xorsi3 (rtx *operands)
{
register int logval;
if (GET_CODE (operands[2]) == CONST_INT
&& INTVAL (operands[2]) >> 16 == 0
&& (offsettable_memref_p (operands[0]) || DATA_REG_P (operands[0]))
- && !TARGET_5200)
+ && !TARGET_COLDFIRE)
{
if (! DATA_REG_P (operands[0]))
- operands[0] = adj_offsettable_operand (operands[0], 2);
+ operands[0] = adjust_address (operands[0], HImode, 2);
/* Do not delete a following tstl %0 insn; that would be incorrect. */
CC_STATUS_INIT;
if (INTVAL (operands[2]) == 0xffff)
|| offsettable_memref_p (operands[0])))
{
if (DATA_REG_P (operands[0]))
- {
- operands[1] = GEN_INT (logval);
- }
+ operands[1] = GEN_INT (logval);
else
{
- operands[0] = adj_offsettable_operand (operands[0], 3 - (logval / 8));
+ operands[0] = adjust_address (operands[0], SImode, 3 - (logval / 8));
operands[1] = GEN_INT (logval % 8);
}
CC_STATUS_INIT;
}
return "eor%.l %2,%0";
}
+
+#ifdef M68K_TARGET_COFF
+
+/* Output assembly to switch to section NAME with attribute FLAGS. */
+
+static void
+m68k_coff_asm_named_section (const char *name, unsigned int flags)
+{
+ char flagchar;
+
+ if (flags & SECTION_WRITE)
+ flagchar = 'd';
+ else
+ flagchar = 'x';
+
+ fprintf (asm_out_file, "\t.section\t%s,\"%c\"\n", name, flagchar);
+}
+
+#endif /* M68K_TARGET_COFF */
+
+static void
+m68k_output_mi_thunk (FILE *file, tree thunk ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT delta,
+ HOST_WIDE_INT vcall_offset ATTRIBUTE_UNUSED,
+ tree function)
+{
+ rtx xops[1];
+ const char *fmt;
+
+ if (delta > 0 && delta <= 8)
+ asm_fprintf (file, MOTOROLA ?
+ "\taddq.l %I%d,4(%Rsp)\n" :
+ "\taddql %I%d,%Rsp@(4)\n",
+ (int) delta);
+ else if (delta < 0 && delta >= -8)
+ asm_fprintf (file, MOTOROLA ?
+ "\tsubq.l %I%d,4(%Rsp)\n" :
+ "\tsubql %I%d,%Rsp@(4)\n",
+ (int) -delta);
+ else if (TARGET_COLDFIRE)
+ {
+ /* ColdFire can't add/sub a constant to memory unless it is in
+ the range of addq/subq. So load the value into %d0 and
+ then add it to 4(%sp). */
+ if (delta >= -128 && delta <= 127)
+ asm_fprintf (file, MOTOROLA ?
+ "\tmoveq.l %I%wd,%Rd0\n" :
+ "\tmoveql %I%wd,%Rd0\n", delta);
+ else
+ asm_fprintf (file, MOTOROLA ?
+ "\tmove.l %I%wd,%Rd0\n" :
+ "\tmovel %I%wd,%Rd0\n", delta);
+ asm_fprintf (file, MOTOROLA ?
+ "\tadd.l %Rd0,4(%Rsp)\n" :
+ "\taddl %Rd0,%Rsp@(4)\n");
+ }
+ else
+ asm_fprintf (file, MOTOROLA ?
+ "\tadd.l %I%wd,4(%Rsp)\n" :
+ "\taddl %I%wd,%Rsp@(4)\n",
+ delta);
+
+ xops[0] = DECL_RTL (function);
+
+ /* Logic taken from call patterns in m68k.md. */
+ if (flag_pic)
+ {
+ if (TARGET_PCREL)
+ fmt = "bra.l %o0";
+ else if ((flag_pic == 1) || TARGET_68020)
+ {
+ if (MOTOROLA)
+#if defined(USE_GAS)
+ fmt = "bra.l %0@PLTPC";
+#else
+ fmt = "bra %0@PLTPC";
+#endif
+ else /* !MOTOROLA */
+#ifdef USE_GAS
+ fmt = "bra.l %0";
+#else
+ fmt = "jra %0,a1";
+#endif
+ }
+ else if (optimize_size || TARGET_ID_SHARED_LIBRARY)
+ fmt = "move.l %0@GOT(%%a5), %%a1\n\tjmp (%%a1)";
+ else
+ fmt = "lea %0-.-8,%%a1\n\tjsr 0(%%pc,%%a1)";
+ }
+ else
+ {
+#if MOTOROLA && !defined (USE_GAS)
+ fmt = "jmp %0";
+#else
+ fmt = "jra %0";
+#endif
+ }
+
+ output_asm_insn (fmt, xops);
+}
+
+/* Worker function for TARGET_STRUCT_VALUE_RTX. */
+
+static rtx
+m68k_struct_value_rtx (tree fntype ATTRIBUTE_UNUSED,
+ int incoming ATTRIBUTE_UNUSED)
+{
+ return gen_rtx_REG (Pmode, M68K_STRUCT_VALUE_REGNUM);
+}
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