/* Definitions of target machine for GNU compiler, for MMIX.
- Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005
+ Free Software Foundation, Inc.
Contributed by Hans-Peter Nilsson (hp@bitrange.com)
This file is part of GCC.
You should have received a copy of the GNU General Public License
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. */
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#include "config.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "rtl.h"
#include "regs.h"
#include "hard-reg-set.h"
(perhaps any insn). But regs_ever_live is up-to-date when
leaf_function_p () isn't, so we "or" them together to get accurate
information. FIXME: Some tweak to leaf_function_p might be
- preferrable. */
+ preferable. */
#define MMIX_CFUN_NEEDS_SAVED_EH_RETURN_ADDRESS \
(flag_exceptions \
&& ((reload_completed && regs_ever_live[MMIX_rJ_REGNUM]) \
rtx mmix_compare_op0;
rtx mmix_compare_op1;
-/* We ignore some options with arguments. They are passed to the linker,
- but also ends up here because they start with "-m". We tell the driver
- to store them in a variable we don't inspect. */
-const char *mmix_cc1_ignored_option;
-
/* Declarations of locals. */
/* Intermediate for insn output. */
static int mmix_output_destination_register;
static void mmix_output_shiftvalue_op_from_str
- PARAMS ((FILE *, const char *, HOST_WIDEST_INT));
-static void mmix_output_shifted_value PARAMS ((FILE *, HOST_WIDEST_INT));
-static void mmix_output_condition PARAMS ((FILE *, rtx, int));
-static HOST_WIDEST_INT mmix_intval PARAMS ((rtx));
-static void mmix_output_octa PARAMS ((FILE *, HOST_WIDEST_INT, int));
-static bool mmix_assemble_integer PARAMS ((rtx, unsigned int, int));
-static struct machine_function * mmix_init_machine_status PARAMS ((void));
-static void mmix_encode_section_info PARAMS ((tree, int));
-static const char *mmix_strip_name_encoding PARAMS ((const char *));
-static void mmix_emit_sp_add PARAMS ((HOST_WIDE_INT offset));
-static void mmix_target_asm_function_prologue
- PARAMS ((FILE *, HOST_WIDE_INT));
-static void mmix_target_asm_function_end_prologue PARAMS ((FILE *));
-static void mmix_target_asm_function_epilogue
- PARAMS ((FILE *, HOST_WIDE_INT));
+ (FILE *, const char *, HOST_WIDEST_INT);
+static void mmix_output_shifted_value (FILE *, HOST_WIDEST_INT);
+static void mmix_output_condition (FILE *, rtx, int);
+static HOST_WIDEST_INT mmix_intval (rtx);
+static void mmix_output_octa (FILE *, HOST_WIDEST_INT, int);
+static bool mmix_assemble_integer (rtx, unsigned int, int);
+static struct machine_function *mmix_init_machine_status (void);
+static void mmix_encode_section_info (tree, rtx, int);
+static const char *mmix_strip_name_encoding (const char *);
+static void mmix_emit_sp_add (HOST_WIDE_INT offset);
+static void mmix_target_asm_function_prologue (FILE *, HOST_WIDE_INT);
+static void mmix_target_asm_function_end_prologue (FILE *);
+static void mmix_target_asm_function_epilogue (FILE *, HOST_WIDE_INT);
+static void mmix_reorg (void);
static void mmix_asm_output_mi_thunk
- PARAMS ((FILE *, tree, HOST_WIDE_INT, HOST_WIDE_INT, tree));
-
+ (FILE *, tree, HOST_WIDE_INT, HOST_WIDE_INT, tree);
+static void mmix_setup_incoming_varargs
+ (CUMULATIVE_ARGS *, enum machine_mode, tree, int *, int);
+static void mmix_file_start (void);
+static void mmix_file_end (void);
+static bool mmix_rtx_costs (rtx, int, int, int *);
+static rtx mmix_struct_value_rtx (tree, int);
+static bool mmix_pass_by_reference (const CUMULATIVE_ARGS *,
+ enum machine_mode, tree, bool);
/* Target structure macros. Listed by node. See `Using and Porting GCC'
for a general description. */
#define TARGET_ASM_OUTPUT_MI_THUNK mmix_asm_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
+#define TARGET_ASM_FILE_START mmix_file_start
+#undef TARGET_ASM_FILE_START_FILE_DIRECTIVE
+#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true
+#undef TARGET_ASM_FILE_END
+#define TARGET_ASM_FILE_END mmix_file_end
+
+#undef TARGET_RTX_COSTS
+#define TARGET_RTX_COSTS mmix_rtx_costs
+#undef TARGET_ADDRESS_COST
+#define TARGET_ADDRESS_COST hook_int_rtx_0
+
+#undef TARGET_MACHINE_DEPENDENT_REORG
+#define TARGET_MACHINE_DEPENDENT_REORG mmix_reorg
+
+#undef TARGET_PROMOTE_FUNCTION_ARGS
+#define TARGET_PROMOTE_FUNCTION_ARGS hook_bool_tree_true
+#if 0
+/* Apparently not doing TRT if int < register-size. FIXME: Perhaps
+ FUNCTION_VALUE and LIBCALL_VALUE needs tweaking as some ports say. */
+#undef TARGET_PROMOTE_FUNCTION_RETURN
+#define TARGET_PROMOTE_FUNCTION_RETURN hook_bool_tree_true
+#endif
+
+#undef TARGET_STRUCT_VALUE_RTX
+#define TARGET_STRUCT_VALUE_RTX mmix_struct_value_rtx
+#undef TARGET_SETUP_INCOMING_VARARGS
+#define TARGET_SETUP_INCOMING_VARARGS mmix_setup_incoming_varargs
+#undef TARGET_PASS_BY_REFERENCE
+#define TARGET_PASS_BY_REFERENCE mmix_pass_by_reference
+#undef TARGET_CALLEE_COPIES
+#define TARGET_CALLEE_COPIES hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
+#undef TARGET_DEFAULT_TARGET_FLAGS
+#define TARGET_DEFAULT_TARGET_FLAGS TARGET_DEFAULT
struct gcc_target targetm = TARGET_INITIALIZER;
/* OVERRIDE_OPTIONS. */
void
-mmix_override_options ()
+mmix_override_options (void)
{
/* Should we err or should we warn? Hmm. At least we must neutralize
it. For example the wrong kind of case-tables will be generated with
labels. */
if (flag_pic)
{
- warning ("-f%s not supported: ignored", (flag_pic > 1) ? "PIC" : "pic");
+ warning (0, "-f%s not supported: ignored", (flag_pic > 1) ? "PIC" : "pic");
flag_pic = 0;
}
}
/* INIT_EXPANDERS. */
void
-mmix_init_expanders ()
+mmix_init_expanders (void)
{
init_machine_status = mmix_init_machine_status;
}
/* Set the per-function data. */
static struct machine_function *
-mmix_init_machine_status ()
+mmix_init_machine_status (void)
{
return ggc_alloc_cleared (sizeof (struct machine_function));
}
/* DATA_ALIGNMENT.
We have trouble getting the address of stuff that is located at other
than 32-bit alignments (GETA requirements), so try to give everything
- at least 32-bit alignment. */
+ at least 32-bit alignment. */
int
-mmix_data_alignment (type, basic_align)
- tree type ATTRIBUTE_UNUSED;
- int basic_align;
+mmix_data_alignment (tree type ATTRIBUTE_UNUSED, int basic_align)
{
if (basic_align < 32)
return 32;
/* CONSTANT_ALIGNMENT. */
int
-mmix_constant_alignment (constant, basic_align)
- tree constant ATTRIBUTE_UNUSED;
- int basic_align;
+mmix_constant_alignment (tree constant ATTRIBUTE_UNUSED, int basic_align)
{
if (basic_align < 32)
return 32;
/* LOCAL_ALIGNMENT. */
int
-mmix_local_alignment (type, basic_align)
- tree type ATTRIBUTE_UNUSED;
- int basic_align;
+mmix_local_alignment (tree type ATTRIBUTE_UNUSED, int basic_align)
{
if (basic_align < 32)
return 32;
/* CONDITIONAL_REGISTER_USAGE. */
void
-mmix_conditional_register_usage ()
+mmix_conditional_register_usage (void)
{
int i;
saved are local. */
int
-mmix_local_regno (regno)
- int regno;
+mmix_local_regno (int regno)
{
return regno <= MMIX_LAST_STACK_REGISTER_REGNUM && !call_used_regs[regno];
}
We need to extend the reload class of REMAINDER_REG and HIMULT_REG. */
enum reg_class
-mmix_preferred_reload_class (x, class)
- rtx x ATTRIBUTE_UNUSED;
- enum reg_class class;
+mmix_preferred_reload_class (rtx x ATTRIBUTE_UNUSED, enum reg_class class)
{
/* FIXME: Revisit. */
return GET_CODE (x) == MOD && GET_MODE (x) == DImode
We need to extend the reload class of REMAINDER_REG and HIMULT_REG. */
enum reg_class
-mmix_preferred_output_reload_class (x, class)
- rtx x ATTRIBUTE_UNUSED;
- enum reg_class class;
+mmix_preferred_output_reload_class (rtx x ATTRIBUTE_UNUSED,
+ enum reg_class class)
{
/* FIXME: Revisit. */
return GET_CODE (x) == MOD && GET_MODE (x) == DImode
We need to reload regs of REMAINDER_REG and HIMULT_REG elsewhere. */
enum reg_class
-mmix_secondary_reload_class (class, mode, x, in_p)
- enum reg_class class;
- enum machine_mode mode ATTRIBUTE_UNUSED;
- rtx x ATTRIBUTE_UNUSED;
- int in_p ATTRIBUTE_UNUSED;
+mmix_secondary_reload_class (enum reg_class class,
+ enum machine_mode mode ATTRIBUTE_UNUSED,
+ rtx x ATTRIBUTE_UNUSED,
+ int in_p ATTRIBUTE_UNUSED)
{
if (class == REMAINDER_REG
|| class == HIMULT_REG
/* CONST_OK_FOR_LETTER_P. */
int
-mmix_const_ok_for_letter_p (value, c)
- HOST_WIDE_INT value;
- int c;
+mmix_const_ok_for_letter_p (HOST_WIDE_INT value, int c)
{
return
(c == 'I' ? value >= 0 && value <= 255
/* CONST_DOUBLE_OK_FOR_LETTER_P. */
int
-mmix_const_double_ok_for_letter_p (value, c)
- rtx value;
- int c;
+mmix_const_double_ok_for_letter_p (rtx value, int c)
{
return
(c == 'G' ? value == CONST0_RTX (GET_MODE (value))
CONST_INT:s, but rather often as CONST_DOUBLE:s. */
int
-mmix_extra_constraint (x, c, strict)
- rtx x;
- int c;
- int strict;
+mmix_extra_constraint (rtx x, int c, int strict)
{
HOST_WIDEST_INT value;
/* DYNAMIC_CHAIN_ADDRESS. */
rtx
-mmix_dynamic_chain_address (frame)
- rtx frame;
+mmix_dynamic_chain_address (rtx frame)
{
/* FIXME: the frame-pointer is stored at offset -8 from the current
frame-pointer. Unfortunately, the caller assumes that a
/* STARTING_FRAME_OFFSET. */
int
-mmix_starting_frame_offset ()
+mmix_starting_frame_offset (void)
{
/* The old frame pointer is in the slot below the new one, so
FIRST_PARM_OFFSET does not need to depend on whether the
/* RETURN_ADDR_RTX. */
rtx
-mmix_return_addr_rtx (count, frame)
- int count;
- rtx frame ATTRIBUTE_UNUSED;
+mmix_return_addr_rtx (int count, rtx frame ATTRIBUTE_UNUSED)
{
return count == 0
? (MMIX_CFUN_NEEDS_SAVED_EH_RETURN_ADDRESS
/* SETUP_FRAME_ADDRESSES. */
void
-mmix_setup_frame_addresses ()
+mmix_setup_frame_addresses (void)
{
/* Nothing needed at the moment. */
}
pointer. Used to eliminate the frame pointer. */
int
-mmix_initial_elimination_offset (fromreg, toreg)
- int fromreg;
- int toreg;
+mmix_initial_elimination_offset (int fromreg, int toreg)
{
int regno;
int fp_sp_offset
one that must go on stack. */
rtx
-mmix_function_arg (argsp, mode, type, named, incoming)
- const CUMULATIVE_ARGS * argsp;
- enum machine_mode mode;
- tree type;
- int named ATTRIBUTE_UNUSED;
- int incoming;
+mmix_function_arg (const CUMULATIVE_ARGS *argsp,
+ enum machine_mode mode,
+ tree type,
+ int named ATTRIBUTE_UNUSED,
+ int incoming)
{
/* Last-argument marker. */
if (type == void_type_node)
: NULL_RTX;
return (argsp->regs < MMIX_MAX_ARGS_IN_REGS
- && !MUST_PASS_IN_STACK (mode, type)
+ && !targetm.calls.must_pass_in_stack (mode, type)
&& (GET_MODE_BITSIZE (mode) <= 64
|| argsp->lib
|| TARGET_LIBFUNC))
/* Returns nonzero for everything that goes by reference, 0 for
everything that goes by value. */
-int
-mmix_function_arg_pass_by_reference (argsp, mode, type, named)
- const CUMULATIVE_ARGS * argsp;
- enum machine_mode mode;
- tree type;
- int named ATTRIBUTE_UNUSED;
+static bool
+mmix_pass_by_reference (const CUMULATIVE_ARGS *argsp, enum machine_mode mode,
+ tree type, bool named ATTRIBUTE_UNUSED)
{
- /* FIXME: Check: I'm not sure the MUST_PASS_IN_STACK check is
+ /* FIXME: Check: I'm not sure the must_pass_in_stack check is
necessary. */
- return
- MUST_PASS_IN_STACK (mode, type)
- || (MMIX_FUNCTION_ARG_SIZE (mode, type) > 8
- && !TARGET_LIBFUNC
- && !argsp->lib);
+ if (targetm.calls.must_pass_in_stack (mode, type))
+ return true;
+
+ if (MMIX_FUNCTION_ARG_SIZE (mode, type) > 8
+ && !TARGET_LIBFUNC
+ && (!argsp || !argsp->lib))
+ return true;
+
+ return false;
}
/* Return nonzero if regno is a register number where a parameter is
passed, and 0 otherwise. */
int
-mmix_function_arg_regno_p (regno, incoming)
- int regno;
- int incoming;
+mmix_function_arg_regno_p (int regno, int incoming)
{
int first_arg_regnum
= incoming ? MMIX_FIRST_INCOMING_ARG_REGNUM : MMIX_FIRST_ARG_REGNUM;
/* FUNCTION_OUTGOING_VALUE. */
rtx
-mmix_function_outgoing_value (valtype, func)
- tree valtype;
- tree func ATTRIBUTE_UNUSED;
+mmix_function_outgoing_value (tree valtype, tree func ATTRIBUTE_UNUSED)
{
enum machine_mode mode = TYPE_MODE (valtype);
enum machine_mode cmode;
return
gen_rtx_REG (mode, MMIX_OUTGOING_RETURN_VALUE_REGNUM);
- /* A complex type, made up of components. */
- cmode = TYPE_MODE (TREE_TYPE (valtype));
+ if (COMPLEX_MODE_P (mode))
+ /* A complex type, made up of components. */
+ cmode = TYPE_MODE (TREE_TYPE (valtype));
+ else
+ {
+ /* Of the other larger-than-register modes, we only support
+ scalar mode TImode. (At least, that's the only one that's
+ been rudimentally tested.) Make sure we're alerted for
+ unexpected cases. */
+ if (mode != TImode)
+ sorry ("support for mode %qs", GET_MODE_NAME (mode));
+
+ /* In any case, we will fill registers to the natural size. */
+ cmode = DImode;
+ }
+
nregs = ((GET_MODE_BITSIZE (mode) + BITS_PER_WORD - 1) / BITS_PER_WORD);
/* We need to take care of the effect of the register hole on return
vec[nregs - 1]
= gen_rtx_EXPR_LIST (VOIDmode,
gen_rtx_REG (cmode, first_val_regnum + nregs - 1),
- GEN_INT (0));
+ const0_rtx);
return gen_rtx_PARALLEL (VOIDmode, gen_rtvec_v (nregs, vec));
}
/* FUNCTION_VALUE_REGNO_P. */
int
-mmix_function_value_regno_p (regno)
- int regno;
+mmix_function_value_regno_p (int regno)
{
return regno == MMIX_RETURN_VALUE_REGNUM;
}
/* EH_RETURN_DATA_REGNO. */
int
-mmix_eh_return_data_regno (n)
- int n ATTRIBUTE_UNUSED;
+mmix_eh_return_data_regno (int n)
{
if (n >= 0 && n < 4)
return MMIX_EH_RETURN_DATA_REGNO_START + n;
/* EH_RETURN_STACKADJ_RTX. */
rtx
-mmix_eh_return_stackadj_rtx ()
+mmix_eh_return_stackadj_rtx (void)
{
return gen_rtx_REG (Pmode, MMIX_EH_RETURN_STACKADJ_REGNUM);
}
/* EH_RETURN_HANDLER_RTX. */
rtx
-mmix_eh_return_handler_rtx ()
+mmix_eh_return_handler_rtx (void)
{
- return
- gen_rtx_REG (Pmode, MMIX_INCOMING_RETURN_ADDRESS_REGNUM);
+ return gen_rtx_REG (Pmode, MMIX_INCOMING_RETURN_ADDRESS_REGNUM);
}
/* ASM_PREFERRED_EH_DATA_FORMAT. */
int
-mmix_asm_preferred_eh_data_format (code, global)
- int code ATTRIBUTE_UNUSED;
- int global ATTRIBUTE_UNUSED;
+mmix_asm_preferred_eh_data_format (int code ATTRIBUTE_UNUSED,
+ int global ATTRIBUTE_UNUSED)
{
/* This is the default (was at 2001-07-20). Revisit when needed. */
return DW_EH_PE_absptr;
/* Make a note that we've seen the beginning of the prologue. This
matters to whether we'll translate register numbers as calculated by
- mmix_machine_dependent_reorg. */
+ mmix_reorg. */
static void
-mmix_target_asm_function_prologue (stream, framesize)
- FILE *stream ATTRIBUTE_UNUSED;
- HOST_WIDE_INT framesize ATTRIBUTE_UNUSED;
+mmix_target_asm_function_prologue (FILE *stream ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT framesize ATTRIBUTE_UNUSED)
{
cfun->machine->in_prologue = 1;
}
/* Make a note that we've seen the end of the prologue. */
static void
-mmix_target_asm_function_end_prologue (stream)
- FILE *stream ATTRIBUTE_UNUSED;
+mmix_target_asm_function_end_prologue (FILE *stream ATTRIBUTE_UNUSED)
{
cfun->machine->in_prologue = 0;
}
-/* MACHINE_DEPENDENT_REORG.
- No actual rearrangements done here; just virtually by calculating the
- highest saved stack register number used to modify the register numbers
- at output time. */
+/* Implement TARGET_MACHINE_DEPENDENT_REORG. No actual rearrangements
+ done here; just virtually by calculating the highest saved stack
+ register number used to modify the register numbers at output time. */
-void
-mmix_machine_dependent_reorg (first)
- rtx first ATTRIBUTE_UNUSED;
+static void
+mmix_reorg (void)
{
int regno;
/* TARGET_ASM_FUNCTION_EPILOGUE. */
static void
-mmix_target_asm_function_epilogue (stream, locals_size)
- FILE *stream;
- HOST_WIDE_INT locals_size ATTRIBUTE_UNUSED;
-
+mmix_target_asm_function_epilogue (FILE *stream,
+ HOST_WIDE_INT locals_size ATTRIBUTE_UNUSED)
{
/* Emit an \n for readability of the generated assembly. */
fputc ('\n', stream);
/* TARGET_ASM_OUTPUT_MI_THUNK. */
static void
-mmix_asm_output_mi_thunk (stream, fndecl, delta, vcall_offset, func)
- FILE * stream;
- tree fndecl ATTRIBUTE_UNUSED;
- HOST_WIDE_INT delta;
- HOST_WIDE_INT vcall_offset ATTRIBUTE_UNUSED;
- tree func;
-{
- /* If you define STRUCT_VALUE to 0, rather than use STRUCT_VALUE_REGNUM,
- (i.e. pass location of structure to return as invisible first
- argument) you need to tweak this code too. */
+mmix_asm_output_mi_thunk (FILE *stream,
+ tree fndecl ATTRIBUTE_UNUSED,
+ HOST_WIDE_INT delta,
+ HOST_WIDE_INT vcall_offset ATTRIBUTE_UNUSED,
+ tree func)
+{
+ /* If you define TARGET_STRUCT_VALUE_RTX that returns 0 (i.e. pass
+ location of structure to return as invisible first argument), you
+ need to tweak this code too. */
const char *regname = reg_names[MMIX_FIRST_INCOMING_ARG_REGNUM];
if (delta >= 0 && delta < 65536)
/* FUNCTION_PROFILER. */
void
-mmix_function_profiler (stream, labelno)
- FILE *stream ATTRIBUTE_UNUSED;
- int labelno ATTRIBUTE_UNUSED;
+mmix_function_profiler (FILE *stream ATTRIBUTE_UNUSED,
+ int labelno ATTRIBUTE_UNUSED)
{
sorry ("function_profiler support for MMIX");
}
-/* SETUP_INCOMING_VARARGS. */
+/* Worker function for TARGET_SETUP_INCOMING_VARARGS. For the moment,
+ let's stick to pushing argument registers on the stack. Later, we
+ can parse all arguments in registers, to improve performance. */
-void
-mmix_setup_incoming_varargs (args_so_farp, mode, vartype, pretend_sizep,
- second_time)
- CUMULATIVE_ARGS * args_so_farp;
- enum machine_mode mode;
- tree vartype;
- int * pretend_sizep;
- int second_time ATTRIBUTE_UNUSED;
+static void
+mmix_setup_incoming_varargs (CUMULATIVE_ARGS *args_so_farp,
+ enum machine_mode mode,
+ tree vartype,
+ int *pretend_sizep,
+ int second_time ATTRIBUTE_UNUSED)
{
/* The last named variable has been handled, but
args_so_farp has not been advanced for it. */
*pretend_sizep = (MMIX_MAX_ARGS_IN_REGS - (args_so_farp->regs + 1)) * 8;
/* We assume that one argument takes up one register here. That should
- be true until we start messing with multi-reg parameters. */
+ be true until we start messing with multi-reg parameters. */
if ((7 + (MMIX_FUNCTION_ARG_SIZE (mode, vartype))) / 8 != 1)
internal_error ("MMIX Internal: Last named vararg would not fit in a register");
}
-/* EXPAND_BUILTIN_VA_ARG. */
-
-/* This is modified from the "standard" implementation of va_arg: read the
- value from the current (padded) address and increment by the (padded)
- size. The difference for MMIX is that if the type is
- pass-by-reference, then perform an indirection. */
-
-rtx
-mmix_expand_builtin_va_arg (valist, type)
- tree valist;
- tree type;
-{
- tree ptr_size = size_int (BITS_PER_WORD / BITS_PER_UNIT);
- tree addr_tree, type_size = NULL;
- tree align, alignm1;
- tree rounded_size;
- rtx addr;
-
- /* Compute the rounded size of the type. */
-
- /* Get AP. */
- addr_tree = valist;
- align = size_int (PARM_BOUNDARY / BITS_PER_UNIT);
- alignm1 = size_int (PARM_BOUNDARY / BITS_PER_UNIT - 1);
- if (type == error_mark_node
- || (type_size = TYPE_SIZE_UNIT (TYPE_MAIN_VARIANT (type))) == NULL
- || TREE_OVERFLOW (type_size))
- /* Presumably an error; the size isn't computable. A message has
- supposedly been emitted elsewhere. */
- rounded_size = size_zero_node;
- else
- rounded_size = fold (build (MULT_EXPR, sizetype,
- fold (build (TRUNC_DIV_EXPR, sizetype,
- fold (build (PLUS_EXPR, sizetype,
- type_size, alignm1)),
- align)),
- align));
-
- if (AGGREGATE_TYPE_P (type)
- && GET_MODE_UNIT_SIZE (TYPE_MODE (type)) < 8
- && GET_MODE_UNIT_SIZE (TYPE_MODE (type)) != 0)
- {
- /* Adjust for big-endian the location of aggregates passed in a
- register, but where the aggregate is accessed in a shorter mode
- than the natural register mode (i.e. it is accessed as SFmode(?),
- SImode, HImode or QImode rather than DImode or DFmode(?)). FIXME:
- Or should we adjust the mode in which the aggregate is read, to be
- a register size mode? (Hum, nah, a small offset is generally
- cheaper than a wider memory access on MMIX.) */
- addr_tree
- = build (PLUS_EXPR, TREE_TYPE (addr_tree), addr_tree,
- size_int ((BITS_PER_WORD / BITS_PER_UNIT)
- - GET_MODE_UNIT_SIZE (TYPE_MODE (type))));
- }
- else if (!integer_zerop (rounded_size))
- {
- if (!really_constant_p (type_size))
- /* Varying-size types come in by reference. */
- addr_tree
- = build1 (INDIRECT_REF, build_pointer_type (type), addr_tree);
- else
- {
- /* If the size is less than a register, then we need to pad the
- address by adding the difference. */
- tree addend
- = fold (build (COND_EXPR, sizetype,
- fold (build (GT_EXPR, sizetype,
- rounded_size,
- align)),
- size_zero_node,
- fold (build (MINUS_EXPR, sizetype,
- rounded_size,
- type_size))));
- tree addr_tree1
- = fold (build (PLUS_EXPR, TREE_TYPE (addr_tree), addr_tree,
- addend));
-
- /* If this type is larger than what fits in a register, then it
- is passed by reference. */
- addr_tree
- = fold (build (COND_EXPR, TREE_TYPE (addr_tree1),
- fold (build (GT_EXPR, sizetype,
- rounded_size,
- ptr_size)),
- build1 (INDIRECT_REF, build_pointer_type (type),
- addr_tree1),
- addr_tree1));
- }
- }
-
- addr = expand_expr (addr_tree, NULL_RTX, Pmode, EXPAND_NORMAL);
- addr = copy_to_reg (addr);
-
- if (!integer_zerop (rounded_size))
- {
- /* Compute new value for AP. For MMIX, it is always advanced by the
- size of a register. */
- tree t = build (MODIFY_EXPR, TREE_TYPE (valist), valist,
- build (PLUS_EXPR, TREE_TYPE (valist), valist,
- ptr_size));
- TREE_SIDE_EFFECTS (t) = 1;
- expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
- }
-
- return addr;
-}
-
/* TRAMPOLINE_SIZE. */
/* Four 4-byte insns plus two 8-byte values. */
int mmix_trampoline_size = 32;
/* TRAMPOLINE_TEMPLATE. */
void
-mmix_trampoline_template (stream)
- FILE * stream;
+mmix_trampoline_template (FILE *stream)
{
/* Read a value into the static-chain register and jump somewhere. The
static chain is stored at offset 16, and the function address is
some day it will). */
void
-mmix_initialize_trampoline (trampaddr, fnaddr, static_chain)
- rtx trampaddr;
- rtx fnaddr;
- rtx static_chain;
+mmix_initialize_trampoline (rtx trampaddr, rtx fnaddr, rtx static_chain)
{
emit_move_insn (gen_rtx_MEM (DImode, plus_constant (trampaddr, 16)),
static_chain);
instruction, unless TARGET_BASE_ADDRESSES. */
int
-mmix_constant_address_p (x)
- rtx x;
+mmix_constant_address_p (rtx x)
{
RTX_CODE code = GET_CODE (x);
int addend = 0;
case SYMBOL_REF:
return 1;
- case CONSTANT_P_RTX:
case HIGH:
/* FIXME: Don't know how to dissect these. Avoid them for now,
except we know they're constants. */
Used by GO_IF_LEGITIMATE_ADDRESS. */
int
-mmix_legitimate_address (mode, x, strict_checking)
- enum machine_mode mode ATTRIBUTE_UNUSED;
- rtx x;
- int strict_checking;
+mmix_legitimate_address (enum machine_mode mode ATTRIBUTE_UNUSED,
+ rtx x,
+ int strict_checking)
{
#define MMIX_REG_OK(X) \
((strict_checking \
/* LEGITIMATE_CONSTANT_P. */
int
-mmix_legitimate_constant_p (x)
- rtx x;
+mmix_legitimate_constant_p (rtx x)
{
RTX_CODE code = GET_CODE (x);
/* SELECT_CC_MODE. */
enum machine_mode
-mmix_select_cc_mode (op, x, y)
- RTX_CODE op;
- rtx x;
- rtx y ATTRIBUTE_UNUSED;
+mmix_select_cc_mode (RTX_CODE op, rtx x, rtx y ATTRIBUTE_UNUSED)
{
/* We use CCmode, CC_UNSmode, CC_FPmode, CC_FPEQmode and CC_FUNmode to
output different compare insns. Note that we do not check the
/* REVERSIBLE_CC_MODE. */
int
-mmix_reversible_cc_mode (mode)
- enum machine_mode mode;
+mmix_reversible_cc_mode (enum machine_mode mode)
{
/* That is, all integer and the EQ, NE, ORDERED and UNORDERED float
compares. */
return mode != CC_FPmode;
}
-/* DEFAULT_RTX_COSTS. */
+/* TARGET_RTX_COSTS. */
-int
-mmix_rtx_cost_recalculated (x, code, outer_code, costp)
- rtx x ATTRIBUTE_UNUSED;
- RTX_CODE code ATTRIBUTE_UNUSED;
- RTX_CODE outer_code ATTRIBUTE_UNUSED;
- int *costp ATTRIBUTE_UNUSED;
+static bool
+mmix_rtx_costs (rtx x ATTRIBUTE_UNUSED,
+ int code ATTRIBUTE_UNUSED,
+ int outer_code ATTRIBUTE_UNUSED,
+ int *total ATTRIBUTE_UNUSED)
{
/* For the time being, this is just a stub and we'll accept the
generic calculations, until we can do measurements, at least.
Say we did not modify any calculated costs. */
- return 0;
-}
-
-/* ADDRESS_COST. */
-
-int
-mmix_address_cost (addr)
- rtx addr ATTRIBUTE_UNUSED;
-{
- /* There's no difference in the address costs and we have lots of
- registers. Some targets use constant 0, many others use 1 to say
- this. Let's start with 1. */
- return 1;
+ return false;
}
/* REGISTER_MOVE_COST. */
int
-mmix_register_move_cost (mode, from, to)
- enum machine_mode mode ATTRIBUTE_UNUSED;
- enum reg_class from;
- enum reg_class to;
+mmix_register_move_cost (enum machine_mode mode ATTRIBUTE_UNUSED,
+ enum reg_class from,
+ enum reg_class to)
{
return (from == GENERAL_REGS && from == to) ? 2 : 3;
}
/* DATA_SECTION_ASM_OP. */
const char *
-mmix_data_section_asm_op ()
+mmix_data_section_asm_op (void)
{
return "\t.data ! mmixal:= 8H LOC 9B";
}
static void
-mmix_encode_section_info (decl, first)
- tree decl;
- int first;
+mmix_encode_section_info (tree decl, rtx rtl, int first)
{
/* Test for an external declaration, and do nothing if it is one. */
if ((TREE_CODE (decl) == VAR_DECL
means that when -mtoplevel-symbols is in use, we can just handle
well-behaved ISO-compliant code. */
- const char *str = XSTR (XEXP (DECL_RTL (decl), 0), 0);
+ const char *str = XSTR (XEXP (rtl, 0), 0);
int len = strlen (str);
char *newstr;
strcpy (newstr + 1, str);
*newstr = '@';
- XSTR (XEXP (DECL_RTL (decl), 0), 0) = newstr;
+ XSTR (XEXP (rtl, 0), 0) = newstr;
}
/* Set SYMBOL_REF_FLAG for things that we want to access with GETA. We
&& !TREE_SIDE_EFFECTS (decl)
&& (!DECL_INITIAL (decl)
|| TREE_CONSTANT (DECL_INITIAL (decl)))))
- {
- rtx rtl = (TREE_CODE_CLASS (TREE_CODE (decl)) != 'd'
- ? TREE_CST_RTL (decl) : DECL_RTL (decl));
- SYMBOL_REF_FLAG (XEXP (rtl, 0)) = 1;
- }
+ SYMBOL_REF_FLAG (XEXP (rtl, 0)) = 1;
}
static const char *
-mmix_strip_name_encoding (name)
- const char *name;
+mmix_strip_name_encoding (const char *name)
{
for (; (*name == '@' || *name == '*'); name++)
;
return name;
}
-/* ASM_FILE_START. */
+/* TARGET_ASM_FILE_START.
+ We just emit a little comment for the time being. */
-void
-mmix_asm_file_start (stream)
- FILE * stream;
+static void
+mmix_file_start (void)
{
- /* We just emit a little comment for the time being. FIXME: Perhaps add
- -mstandalone and some segment and prefix setup here. */
- ASM_OUTPUT_SOURCE_FILENAME (stream, main_input_filename);
+ default_file_start ();
- fprintf (stream, "! mmixal:= 8H LOC Data_Section\n");
+ fputs ("! mmixal:= 8H LOC Data_Section\n", asm_out_file);
- /* Make sure each file starts with the text section. */
- text_section ();
+ /* Make sure each file starts with the text section. */
+ switch_to_section (text_section);
}
-/* ASM_FILE_END. */
+/* TARGET_ASM_FILE_END. */
-void
-mmix_asm_file_end (stream)
- FILE * stream ATTRIBUTE_UNUSED;
+static void
+mmix_file_end (void)
{
- /* Make sure each file ends with the data section. */
- data_section ();
+ /* Make sure each file ends with the data section. */
+ switch_to_section (data_section);
}
/* ASM_OUTPUT_SOURCE_FILENAME. */
void
-mmix_asm_output_source_filename (stream, name)
- FILE * stream;
- const char * name;
+mmix_asm_output_source_filename (FILE *stream, const char *name)
{
fprintf (stream, "# 1 ");
OUTPUT_QUOTED_STRING (stream, name);
/* OUTPUT_QUOTED_STRING. */
void
-mmix_output_quoted_string (stream, string, length)
- FILE * stream;
- const char * string;
- int length;
+mmix_output_quoted_string (FILE *stream, const char *string, int length)
{
const char * string_end = string + length;
static const char *const unwanted_chars = "\"[]\\";
}
}
-/* ASM_OUTPUT_SOURCE_LINE. */
-
-void
-mmix_asm_output_source_line (stream, lineno)
- FILE * stream;
- int lineno;
-{
- fprintf (stream, "# %d ", lineno);
- OUTPUT_QUOTED_STRING (stream, main_input_filename);
- fprintf (stream, "\n");
-}
-
/* Target hook for assembling integer objects. Use mmix_print_operand
for WYDE and TETRA. Use mmix_output_octa to output 8-byte
CONST_DOUBLEs. */
static bool
-mmix_assemble_integer (x, size, aligned_p)
- rtx x;
- unsigned int size;
- int aligned_p;
+mmix_assemble_integer (rtx x, unsigned int size, int aligned_p)
{
if (aligned_p)
switch (size)
return true;
case 8:
- if (GET_CODE (x) == CONST_DOUBLE)
- /* We don't get here anymore for CONST_DOUBLE, because DImode
- isn't expressed as CONST_DOUBLE, and DFmode is handled
- elsewhere. */
- abort ();
+ /* We don't get here anymore for CONST_DOUBLE, because DImode
+ isn't expressed as CONST_DOUBLE, and DFmode is handled
+ elsewhere. */
+ gcc_assert (GET_CODE (x) != CONST_DOUBLE);
assemble_integer_with_op ("\tOCTA\t", x);
return true;
}
/* ASM_OUTPUT_ASCII. */
void
-mmix_asm_output_ascii (stream, string, length)
- FILE *stream;
- const char *string;
- int length;
+mmix_asm_output_ascii (FILE *stream, const char *string, int length)
{
while (length > 0)
{
/* ASM_OUTPUT_ALIGNED_COMMON. */
void
-mmix_asm_output_aligned_common (stream, name, size, align)
- FILE *stream;
- const char *name;
- int size;
- int align;
+mmix_asm_output_aligned_common (FILE *stream,
+ const char *name,
+ int size,
+ int align)
{
/* This is mostly the elfos.h one. There doesn't seem to be a way to
express this in a mmixal-compatible way. */
/* ASM_OUTPUT_ALIGNED_LOCAL. */
void
-mmix_asm_output_aligned_local (stream, name, size, align)
- FILE * stream;
- const char * name;
- int size;
- int align;
+mmix_asm_output_aligned_local (FILE *stream,
+ const char *name,
+ int size,
+ int align)
{
- data_section ();
+ switch_to_section (data_section);
ASM_OUTPUT_ALIGN (stream, exact_log2 (align/BITS_PER_UNIT));
assemble_name (stream, name);
/* ASM_OUTPUT_LABEL. */
void
-mmix_asm_output_label (stream, name)
- FILE *stream;
- const char * name;
+mmix_asm_output_label (FILE *stream, const char *name)
{
assemble_name (stream, name);
fprintf (stream, "\tIS @\n");
}
+/* ASM_OUTPUT_INTERNAL_LABEL. */
+
+void
+mmix_asm_output_internal_label (FILE *stream, const char *name)
+{
+ assemble_name_raw (stream, name);
+ fprintf (stream, "\tIS @\n");
+}
+
/* ASM_DECLARE_REGISTER_GLOBAL. */
void
-mmix_asm_declare_register_global (stream, decl, regno, name)
- FILE *stream ATTRIBUTE_UNUSED;
- tree decl ATTRIBUTE_UNUSED;
- int regno ATTRIBUTE_UNUSED;
- const char *name ATTRIBUTE_UNUSED;
+mmix_asm_declare_register_global (FILE *stream ATTRIBUTE_UNUSED,
+ tree decl ATTRIBUTE_UNUSED,
+ int regno ATTRIBUTE_UNUSED,
+ const char *name ATTRIBUTE_UNUSED)
{
/* Nothing to do here, but there *will* be, therefore the framework is
here. */
/* ASM_WEAKEN_LABEL. */
void
-mmix_asm_weaken_label (stream, name)
- FILE * stream ATTRIBUTE_UNUSED;
- const char * name ATTRIBUTE_UNUSED;
+mmix_asm_weaken_label (FILE *stream ATTRIBUTE_UNUSED,
+ const char *name ATTRIBUTE_UNUSED)
{
fprintf (stream, "\t.weak ");
assemble_name (stream, name);
/* MAKE_DECL_ONE_ONLY. */
void
-mmix_make_decl_one_only (decl)
- tree decl;
+mmix_make_decl_one_only (tree decl)
{
DECL_WEAK (decl) = 1;
}
Strip GCC's '*' and our own '@'. No order is assumed. */
void
-mmix_asm_output_labelref (stream, name)
- FILE *stream;
- const char *name;
+mmix_asm_output_labelref (FILE *stream, const char *name)
{
int is_extern = 1;
name);
}
-/* ASM_OUTPUT_INTERNAL_LABEL. */
-
-void
-mmix_asm_output_internal_label (stream, name, num)
- FILE * stream;
- const char * name;
- int num;
-{
- fprintf (stream, "%s:%d\tIS @\n", name, num);
-}
-
/* ASM_OUTPUT_DEF. */
void
-mmix_asm_output_def (stream, name, value)
- FILE * stream;
- const char * name;
- const char * value;
+mmix_asm_output_def (FILE *stream, const char *name, const char *value)
{
assemble_name (stream, name);
fprintf (stream, "\tIS ");
/* PRINT_OPERAND. */
void
-mmix_print_operand (stream, x, code)
- FILE * stream;
- rtx x;
- int code;
+mmix_print_operand (FILE *stream, rtx x, int code)
{
/* When we add support for different codes later, we can, when needed,
drop through to the main handler with a modified operand. */
default:
/* Presumably there's a missing case above if we get here. */
- internal_error ("MMIX Internal: Missing `%c' case in mmix_print_operand", code);
+ internal_error ("MMIX Internal: Missing %qc case in mmix_print_operand", code);
}
switch (GET_CODE (modified_x))
/* PRINT_OPERAND_PUNCT_VALID_P. */
int
-mmix_print_operand_punct_valid_p (code)
- int code ATTRIBUTE_UNUSED;
+mmix_print_operand_punct_valid_p (int code ATTRIBUTE_UNUSED)
{
/* A '+' is used for branch prediction, similar to other ports. */
return code == '+'
/* PRINT_OPERAND_ADDRESS. */
void
-mmix_print_operand_address (stream, x)
- FILE *stream;
- rtx x;
+mmix_print_operand_address (FILE *stream, rtx x)
{
if (REG_P (x))
{
/* ASM_OUTPUT_REG_PUSH. */
void
-mmix_asm_output_reg_push (stream, regno)
- FILE * stream;
- int regno;
+mmix_asm_output_reg_push (FILE *stream, int regno)
{
fprintf (stream, "\tSUBU %s,%s,8\n\tSTOU %s,%s,0\n",
reg_names[MMIX_STACK_POINTER_REGNUM],
/* ASM_OUTPUT_REG_POP. */
void
-mmix_asm_output_reg_pop (stream, regno)
- FILE * stream;
- int regno;
+mmix_asm_output_reg_pop (FILE *stream, int regno)
{
fprintf (stream, "\tLDOU %s,%s,0\n\tINCL %s,8\n",
reg_names[MMIX_OUTPUT_REGNO (regno)],
/* ASM_OUTPUT_ADDR_DIFF_ELT. */
void
-mmix_asm_output_addr_diff_elt (stream, body, value, rel)
- FILE *stream;
- rtx body ATTRIBUTE_UNUSED;
- int value;
- int rel;
+mmix_asm_output_addr_diff_elt (FILE *stream,
+ rtx body ATTRIBUTE_UNUSED,
+ int value,
+ int rel)
{
fprintf (stream, "\tTETRA L%d-L%d\n", value, rel);
}
/* ASM_OUTPUT_ADDR_VEC_ELT. */
void
-mmix_asm_output_addr_vec_elt (stream, value)
- FILE *stream;
- int value;
+mmix_asm_output_addr_vec_elt (FILE *stream, int value)
{
fprintf (stream, "\tOCTA L:%d\n", value);
}
/* ASM_OUTPUT_SKIP. */
void
-mmix_asm_output_skip (stream, nbytes)
- FILE *stream;
- int nbytes;
+mmix_asm_output_skip (FILE *stream, int nbytes)
{
fprintf (stream, "\tLOC @+%d\n", nbytes);
}
/* ASM_OUTPUT_ALIGN. */
void
-mmix_asm_output_align (stream, power)
- FILE *stream;
- int power;
+mmix_asm_output_align (FILE *stream, int power)
{
/* We need to record the needed alignment of this section in the object,
so we have to output an alignment directive. Use a .p2align (not
/* DBX_REGISTER_NUMBER. */
int
-mmix_dbx_register_number (regno)
- int regno;
+mmix_dbx_register_number (int regno)
{
/* Adjust the register number to the one it will be output as, dammit.
It'd be nice if we could check the assumption that we're filling a
/* End of target macro support functions.
- Now MMIX's own functions. First the exported ones. */
+ Now the MMIX port's own functions. First the exported ones. */
/* Wrapper for get_hard_reg_initial_val since integrate.h isn't included
from insn-emit.c. */
rtx
-mmix_get_hard_reg_initial_val (mode, regno)
- enum machine_mode mode;
- int regno;
+mmix_get_hard_reg_initial_val (enum machine_mode mode, int regno)
{
return get_hard_reg_initial_val (mode, regno);
}
"POP %d,0" should be used even within the function. */
int
-mmix_use_simple_return ()
+mmix_use_simple_return (void)
{
int regno;
/* Expands the function prologue into RTX. */
void
-mmix_expand_prologue ()
+mmix_expand_prologue (void)
{
HOST_WIDE_INT locals_size = get_frame_size ();
int regno;
/* Make sure we don't get an unaligned stack. */
if ((stack_space_to_allocate % 8) != 0)
- internal_error ("stack frame not a multiple of 8 bytes: %d",
+ internal_error ("stack frame not a multiple of 8 bytes: %wd",
stack_space_to_allocate);
if (current_function_pretend_args_size)
/* Expands the function epilogue into RTX. */
void
-mmix_expand_epilogue ()
+mmix_expand_epilogue (void)
{
HOST_WIDE_INT locals_size = get_frame_size ();
int regno;
+ current_function_pretend_args_size
+ locals_size + 7) & ~7;
- /* The assumption that locals_size fits in an int is asserted in
- mmix_expand_prologue. */
-
/* The first address to access is beyond the outgoing_args area. */
- int offset = current_function_outgoing_args_size;
+ HOST_WIDE_INT offset = current_function_outgoing_args_size;
/* Add the space for global non-register-stack registers.
It is assumed that the frame-pointer register can be one of these
/* Make sure we don't get an unaligned stack. */
if ((stack_space_to_deallocate % 8) != 0)
- internal_error ("stack frame not a multiple of octabyte: %d",
+ internal_error ("stack frame not a multiple of octabyte: %wd",
stack_space_to_deallocate);
/* We will add back small offsets to the stack pointer as we go.
might be of an unaligned size. */
offset += (locals_size + 7) & ~7;
-
/* The saved register stack pointer is just below the frame-pointer
register. We don't need to restore it "manually"; the POP
instruction does that. */
first insn and after the last insn is wanted. */
void
-mmix_output_register_setting (stream, regno, value, do_begin_end)
- FILE *stream;
- int regno;
- HOST_WIDEST_INT value;
- int do_begin_end;
+mmix_output_register_setting (FILE *stream,
+ int regno,
+ HOST_WIDEST_INT value,
+ int do_begin_end)
{
if (do_begin_end)
fprintf (stream, "\t");
else return 0. */
int
-mmix_shiftable_wyde_value (value)
- unsigned HOST_WIDEST_INT value;
+mmix_shiftable_wyde_value (unsigned HOST_WIDEST_INT value)
{
/* Shift by 16 bits per group, stop when we've found two groups with
nonzero bits. */
return 1;
}
-/* True if this is an address_operand or a symbolic operand. */
-
-int
-mmix_symbolic_or_address_operand (op, mode)
- rtx op;
- enum machine_mode mode;
-{
- switch (GET_CODE (op))
- {
- case SYMBOL_REF:
- case LABEL_REF:
- return 1;
- case CONST:
- op = XEXP (op, 0);
- if ((GET_CODE (XEXP (op, 0)) == SYMBOL_REF
- || GET_CODE (XEXP (op, 0)) == LABEL_REF)
- && (GET_CODE (XEXP (op, 1)) == CONST_INT
- || (GET_CODE (XEXP (op, 1)) == CONST_DOUBLE
- && GET_MODE (XEXP (op, 1)) == VOIDmode)))
- return 1;
- /* FALLTHROUGH */
- default:
- return address_operand (op, mode);
- }
-}
-
-/* True if this is a register or CONST_INT (or CONST_DOUBLE for DImode).
- We could narrow the value down with a couple of predicated, but that
- doesn't seem to be worth it at the moment. */
-
-int
-mmix_reg_or_constant_operand (op, mode)
- rtx op;
- enum machine_mode mode;
-{
- return register_operand (op, mode)
- || (GET_CODE (op) == CONST_DOUBLE && GET_MODE (op) == VOIDmode)
- || GET_CODE (op) == CONST_INT;
-}
-
-/* True if this is a register with a condition-code mode. */
-
-int
-mmix_reg_cc_operand (op, mode)
- rtx op;
- enum machine_mode mode;
-{
- if (mode == VOIDmode)
- mode = GET_MODE (op);
-
- return register_operand (op, mode)
- && (mode == CCmode || mode == CC_UNSmode || mode == CC_FPmode
- || mode == CC_FPEQmode || mode == CC_FUNmode);
-}
-
-/* True if this is a foldable comparison operator
- - one where a the result of (compare:CC (reg) (const_int 0)) can be
- replaced by (reg). */
-
-int
-mmix_foldable_comparison_operator (op, mode)
- rtx op;
- enum machine_mode mode;
-{
- RTX_CODE code = GET_CODE (op);
-
- if (mode == VOIDmode)
- mode = GET_MODE (op);
-
- if (mode == VOIDmode && GET_RTX_CLASS (GET_CODE (op)) == '<')
- mode = GET_MODE (XEXP (op, 0));
-
- return ((mode == CCmode || mode == DImode)
- && (code == NE || code == EQ || code == GE || code == GT
- || code == LE))
- /* FIXME: This may be a stupid trick. What happens when GCC wants to
- reverse the condition? Can it do that by itself? Maybe it can
- even reverse the condition to fit a foldable one in the first
- place? */
- || (mode == CC_UNSmode && (code == GTU || code == LEU));
-}
-
-/* Like comparison_operator, but only true if this comparison operator is
- applied to a valid mode. Needed to avoid jump.c generating invalid
- code with -ffast-math (gcc.dg/20001228-1.c). */
-
-int
-mmix_comparison_operator (op, mode)
- rtx op;
- enum machine_mode mode;
-{
- RTX_CODE code = GET_CODE (op);
-
- /* Comparison operators usually don't have a mode, but let's try and get
- one anyway for the day that changes. */
- if (mode == VOIDmode)
- mode = GET_MODE (op);
-
- /* Get the mode from the first operand if we don't have one. */
- if (mode == VOIDmode && GET_RTX_CLASS (GET_CODE (op)) == '<')
- mode = GET_MODE (XEXP (op, 0));
-
- /* FIXME: This needs to be kept in sync with the tables in
- mmix_output_condition. */
- return
- (mode == VOIDmode && GET_RTX_CLASS (GET_CODE (op)) == '<')
- || (mode == CC_FUNmode
- && (code == ORDERED || code == UNORDERED))
- || (mode == CC_FPmode
- && (code == GT || code == LT))
- || (mode == CC_FPEQmode
- && (code == NE || code == EQ))
- || (mode == CC_UNSmode
- && (code == GEU || code == GTU || code == LEU || code == LTU))
- || (mode == CCmode
- && (code == NE || code == EQ || code == GE || code == GT
- || code == LE || code == LT))
- || (mode == DImode
- && (code == NE || code == EQ || code == GE || code == GT
- || code == LE || code == LT || code == LEU || code == GTU));
-}
-
-/* True if this is a register or 0 (int or float). */
-
-int
-mmix_reg_or_0_operand (op, mode)
- rtx op;
- enum machine_mode mode;
-{
- /* FIXME: Is mode calculation necessary and correct? */
- return
- op == CONST0_RTX (mode == VOIDmode ? GET_MODE (op) : mode)
- || register_operand (op, mode);
-}
-
-/* True if this is a register or an int 0..255. */
-
-int
-mmix_reg_or_8bit_operand (op, mode)
- rtx op;
- enum machine_mode mode;
-{
- return register_operand (op, mode)
- || (GET_CODE (op) == CONST_INT
- && CONST_OK_FOR_LETTER_P (INTVAL (op), 'I'));
-}
-
/* Returns zero if code and mode is not a valid condition from a
compare-type insn. Nonzero if it is. The parameter op, if non-NULL,
is the comparison of mode is CC-somethingmode. */
int
-mmix_valid_comparison (code, mode, op)
- RTX_CODE code;
- enum machine_mode mode;
- rtx op;
+mmix_valid_comparison (RTX_CODE code, enum machine_mode mode, rtx op)
{
if (mode == VOIDmode && op != NULL_RTX)
mode = GET_MODE (op);
NULL_RTX if this is not a valid comparison. */
rtx
-mmix_gen_compare_reg (code, x, y)
- RTX_CODE code;
- rtx x, y;
+mmix_gen_compare_reg (RTX_CODE code, rtx x, rtx y)
{
enum machine_mode ccmode = SELECT_CC_MODE (code, x, y);
rtx cc_reg;
/* Local (static) helper functions. */
static void
-mmix_emit_sp_add (offset)
- HOST_WIDE_INT offset;
+mmix_emit_sp_add (HOST_WIDE_INT offset)
{
rtx insn;
wyde. The type of operator is passed as an asm output modifier. */
static void
-mmix_output_shiftvalue_op_from_str (stream, mainop, value)
- FILE *stream;
- const char *mainop;
- HOST_WIDEST_INT value;
+mmix_output_shiftvalue_op_from_str (FILE *stream,
+ const char *mainop,
+ HOST_WIDEST_INT value)
{
static const char *const op_part[] = {"L", "ML", "MH", "H"};
int i;
/* Print a 64-bit value, optionally prefixed by assembly pseudo. */
static void
-mmix_output_octa (stream, value, do_begin_end)
- FILE *stream;
- HOST_WIDEST_INT value;
- int do_begin_end;
+mmix_output_octa (FILE *stream, HOST_WIDEST_INT value, int do_begin_end)
{
/* Snipped from final.c:output_addr_const. We need to avoid the
presumed universal "0x" prefix. We can do it by replacing "0x" with
be output with an operand). */
static void
-mmix_output_shifted_value (stream, value)
- FILE * stream;
- HOST_WIDEST_INT value;
+mmix_output_shifted_value (FILE *stream, HOST_WIDEST_INT value)
{
int i;
}
for (i = 0; i < 4; i++)
- {
- /* We know we're through when we find one-bits in the low 16 bits. */
- if (value & 0xffff)
{
- fprintf (stream, "#%x", (int) (value & 0xffff));
- return;
- }
+ /* We know we're through when we find one-bits in the low 16 bits. */
+ if (value & 0xffff)
+ {
+ fprintf (stream, "#%x", (int) (value & 0xffff));
+ return;
+ }
value >>= 16;
}
same as swapping the arguments). */
static void
-mmix_output_condition (stream, x, reversed)
- FILE *stream;
- rtx x;
- int reversed;
+mmix_output_condition (FILE *stream, rtx x, int reversed)
{
struct cc_conv
{
{
enum machine_mode cc_mode;
- /* Terminated with {NIL, NULL, NULL} */
+ /* Terminated with {UNKNOWN, NULL, NULL} */
const struct cc_conv *const convs;
};
#undef CCEND
-#define CCEND {NIL, NULL, NULL}
+#define CCEND {UNKNOWN, NULL, NULL}
static const struct cc_conv cc_fun_convs[]
= {{ORDERED, "Z", "P"},
{
if (mode == cc_convs[i].cc_mode)
{
- for (j = 0; cc_convs[i].convs[j].cc != NIL; j++)
+ for (j = 0; cc_convs[i].convs[j].cc != UNKNOWN; j++)
if (cc == cc_convs[i].convs[j].cc)
{
const char *mmix_cc
/* Return the bit-value for a const_int or const_double. */
static HOST_WIDEST_INT
-mmix_intval (x)
- rtx x;
+mmix_intval (rtx x)
{
unsigned HOST_WIDEST_INT retval;
REAL_VALUE_TO_TARGET_DOUBLE (value, bits);
- if (sizeof (long) < sizeof (HOST_WIDEST_INT))
- {
- retval = (unsigned long) bits[1] / 2;
- retval *= 2;
- retval |= (unsigned long) bits[1] & 1;
- retval
- |= (unsigned HOST_WIDEST_INT) bits[0]
- << (sizeof (bits[0]) * 8);
- }
- else
- retval = (unsigned long) bits[1];
-
- return retval;
+ /* The double cast is necessary to avoid getting the long
+ sign-extended to unsigned long long(!) when they're of
+ different size (usually 32-bit hosts). */
+ return
+ ((unsigned HOST_WIDEST_INT) (unsigned long) bits[0]
+ << (unsigned HOST_WIDEST_INT) 32U)
+ | (unsigned HOST_WIDEST_INT) (unsigned long) bits[1];
}
else if (GET_MODE (x) == SFmode)
{
fatal_insn ("MMIX Internal: This is not a constant:", x);
}
+/* Worker function for TARGET_STRUCT_VALUE_RTX. */
+
+static rtx
+mmix_struct_value_rtx (tree fntype ATTRIBUTE_UNUSED,
+ int incoming ATTRIBUTE_UNUSED)
+{
+ return gen_rtx_REG (Pmode, MMIX_STRUCT_VALUE_REGNUM);
+}
+
/*
* Local variables:
* eval: (c-set-style "gnu")
OSDN Git Service
