/* Target Definitions for moxie.
|
/* Target Definitions for moxie.
|
Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
|
Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
|
Contributed by Anthony Green.
|
Contributed by Anthony Green.
|
|
|
This file is part of GCC.
|
This file is part of GCC.
|
|
|
GCC is free software; you can redistribute it and/or modify it
|
GCC is free software; you can redistribute it and/or modify it
|
under the terms of the GNU General Public License as published
|
under the terms of the GNU General Public License as published
|
by the Free Software Foundation; either version 3, or (at your
|
by the Free Software Foundation; either version 3, or (at your
|
option) any later version.
|
option) any later version.
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT
|
GCC is distributed in the hope that it will be useful, but WITHOUT
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
License for more details.
|
License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING3. If not see
|
along with GCC; see the file COPYING3. If not see
|
<http://www.gnu.org/licenses/>. */
|
<http://www.gnu.org/licenses/>. */
|
|
|
#ifndef GCC_MOXIE_H
|
#ifndef GCC_MOXIE_H
|
#define GCC_MOXIE_H
|
#define GCC_MOXIE_H
|
|
|
/* This is defined by svr4.h, which is included prior to this file.
|
/* This is defined by svr4.h, which is included prior to this file.
|
However, we should undefine it for moxie-elf, since we don't provide
|
However, we should undefine it for moxie-elf, since we don't provide
|
functions like access() and mkdir() in newlib. This will have to
|
functions like access() and mkdir() in newlib. This will have to
|
be defined again for a Linux port. */
|
be defined again for a Linux port. */
|
#undef TARGET_POSIX_IO
|
#undef TARGET_POSIX_IO
|
|
|
/* Another C string constant used much like `LINK_SPEC'. The difference
|
/* Another C string constant used much like `LINK_SPEC'. The difference
|
between the two is that `STARTFILE_SPEC' is used at the very beginning of
|
between the two is that `STARTFILE_SPEC' is used at the very beginning of
|
the command given to the linker.
|
the command given to the linker.
|
|
|
If this macro is not defined, a default is provided that loads the standard
|
If this macro is not defined, a default is provided that loads the standard
|
C startup file from the usual place. See `gcc.c'.
|
C startup file from the usual place. See `gcc.c'.
|
|
|
Defined in svr4.h. */
|
Defined in svr4.h. */
|
#undef STARTFILE_SPEC
|
#undef STARTFILE_SPEC
|
#define STARTFILE_SPEC "crt0%O%s crti.o%s crtbegin.o%s"
|
#define STARTFILE_SPEC "crt0%O%s crti.o%s crtbegin.o%s"
|
|
|
/* Provide an ENDFILE_SPEC appropriate for svr4. Here we tack on our own
|
/* Provide an ENDFILE_SPEC appropriate for svr4. Here we tack on our own
|
magical crtend.o file (see crtstuff.c) which provides part of the
|
magical crtend.o file (see crtstuff.c) which provides part of the
|
support for getting C++ file-scope static object constructed before
|
support for getting C++ file-scope static object constructed before
|
entering `main', followed by the normal svr3/svr4 "finalizer" file,
|
entering `main', followed by the normal svr3/svr4 "finalizer" file,
|
which is either `gcrtn.o' or `crtn.o'. */
|
which is either `gcrtn.o' or `crtn.o'. */
|
|
|
#undef ENDFILE_SPEC
|
#undef ENDFILE_SPEC
|
#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
|
#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
|
|
|
/* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default
|
/* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default
|
standard C library (unless we are building a shared library) and
|
standard C library (unless we are building a shared library) and
|
the simulator BSP code. */
|
the simulator BSP code. */
|
|
|
#undef LIB_SPEC
|
#undef LIB_SPEC
|
#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
|
#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
|
|
|
/* Layout of Source Language Data Types */
|
/* Layout of Source Language Data Types */
|
|
|
#define INT_TYPE_SIZE 32
|
#define INT_TYPE_SIZE 32
|
#define SHORT_TYPE_SIZE 16
|
#define SHORT_TYPE_SIZE 16
|
#define LONG_TYPE_SIZE 32
|
#define LONG_TYPE_SIZE 32
|
#define LONG_LONG_TYPE_SIZE 64
|
#define LONG_LONG_TYPE_SIZE 64
|
|
|
#define FLOAT_TYPE_SIZE 32
|
#define FLOAT_TYPE_SIZE 32
|
#define DOUBLE_TYPE_SIZE 64
|
#define DOUBLE_TYPE_SIZE 64
|
#define LONG_DOUBLE_TYPE_SIZE 64
|
#define LONG_DOUBLE_TYPE_SIZE 64
|
|
|
#define DEFAULT_SIGNED_CHAR 1
|
#define DEFAULT_SIGNED_CHAR 1
|
|
|
/* Registers...
|
/* Registers...
|
|
|
$fp - frame pointer
|
$fp - frame pointer
|
$sp - stack pointer
|
$sp - stack pointer
|
$r0 - general purpose 32-bit register.
|
$r0 - general purpose 32-bit register.
|
$r1 - general purpose 32-bit register.
|
$r1 - general purpose 32-bit register.
|
$r2 - general purpose 32-bit register.
|
$r2 - general purpose 32-bit register.
|
$r3 - general purpose 32-bit register.
|
$r3 - general purpose 32-bit register.
|
$r4 - general purpose 32-bit register.
|
$r4 - general purpose 32-bit register.
|
$r5 - general purpose 32-bit register.
|
$r5 - general purpose 32-bit register.
|
$r6 - general purpose 32-bit register.
|
$r6 - general purpose 32-bit register.
|
$r7 - general purpose 32-bit register.
|
$r7 - general purpose 32-bit register.
|
$r8 - general purpose 32-bit register.
|
$r8 - general purpose 32-bit register.
|
$r9 - general purpose 32-bit register.
|
$r9 - general purpose 32-bit register.
|
$r10 - general purpose 32-bit register.
|
$r10 - general purpose 32-bit register.
|
$r11 - general purpose 32-bit register.
|
$r11 - general purpose 32-bit register.
|
$r12 - general purpose 32-bit register.
|
$r12 - general purpose 32-bit register.
|
$r13 - reserved for execution environment.
|
$r13 - reserved for execution environment.
|
|
|
Special Registers...
|
Special Registers...
|
|
|
$pc - 32-bit program counter.
|
$pc - 32-bit program counter.
|
|
|
*/
|
*/
|
|
|
#define REGISTER_NAMES { \
|
#define REGISTER_NAMES { \
|
"$fp", "$sp", "$r0", "$r1", \
|
"$fp", "$sp", "$r0", "$r1", \
|
"$r2", "$r3", "$r4", "$r5", \
|
"$r2", "$r3", "$r4", "$r5", \
|
"$r6", "$r7", "$r8", "$r9", \
|
"$r6", "$r7", "$r8", "$r9", \
|
"$r10", "$r11", "$r12", "$r13", \
|
"$r10", "$r11", "$r12", "$r13", \
|
"?fp", "?ap", "$pc", "?cc" }
|
"?fp", "?ap", "$pc", "?cc" }
|
|
|
#define MOXIE_FP 0
|
#define MOXIE_FP 0
|
#define MOXIE_SP 1
|
#define MOXIE_SP 1
|
#define MOXIE_R0 2
|
#define MOXIE_R0 2
|
#define MOXIE_R1 3
|
#define MOXIE_R1 3
|
#define MOXIE_R2 4
|
#define MOXIE_R2 4
|
#define MOXIE_R3 5
|
#define MOXIE_R3 5
|
#define MOXIE_R4 6
|
#define MOXIE_R4 6
|
#define MOXIE_R5 7
|
#define MOXIE_R5 7
|
#define MOXIE_R6 8
|
#define MOXIE_R6 8
|
#define MOXIE_R7 9
|
#define MOXIE_R7 9
|
#define MOXIE_R8 10
|
#define MOXIE_R8 10
|
#define MOXIE_R9 11
|
#define MOXIE_R9 11
|
#define MOXIE_R10 12
|
#define MOXIE_R10 12
|
#define MOXIE_R11 13
|
#define MOXIE_R11 13
|
#define MOXIE_R12 14
|
#define MOXIE_R12 14
|
#define MOXIE_R13 15
|
#define MOXIE_R13 15
|
#define MOXIE_QFP 16
|
#define MOXIE_QFP 16
|
#define MOXIE_QAP 17
|
#define MOXIE_QAP 17
|
#define MOXIE_PC 18
|
#define MOXIE_PC 18
|
#define MOXIE_CC 19
|
#define MOXIE_CC 19
|
|
|
#define FIRST_PSEUDO_REGISTER 20
|
#define FIRST_PSEUDO_REGISTER 20
|
|
|
enum reg_class
|
enum reg_class
|
{
|
{
|
NO_REGS,
|
NO_REGS,
|
GENERAL_REGS,
|
GENERAL_REGS,
|
SPECIAL_REGS,
|
SPECIAL_REGS,
|
CC_REGS,
|
CC_REGS,
|
ALL_REGS,
|
ALL_REGS,
|
LIM_REG_CLASSES
|
LIM_REG_CLASSES
|
};
|
};
|
|
|
|
|
/* The following macro defines cover classes for Integrated Register
|
/* The following macro defines cover classes for Integrated Register
|
Allocator. Cover classes is a set of non-intersected register
|
Allocator. Cover classes is a set of non-intersected register
|
classes covering all hard registers used for register allocation
|
classes covering all hard registers used for register allocation
|
purpose. Any move between two registers of a cover class should be
|
purpose. Any move between two registers of a cover class should be
|
cheaper than load or store of the registers. The macro value is
|
cheaper than load or store of the registers. The macro value is
|
array of register classes with LIM_REG_CLASSES used as the end
|
array of register classes with LIM_REG_CLASSES used as the end
|
marker. */
|
marker. */
|
#define IRA_COVER_CLASSES { GENERAL_REGS, LIM_REG_CLASSES }
|
#define IRA_COVER_CLASSES { GENERAL_REGS, LIM_REG_CLASSES }
|
|
|
#define REG_CLASS_CONTENTS \
|
#define REG_CLASS_CONTENTS \
|
{ { 0x00000000 }, /* Empty */ \
|
{ { 0x00000000 }, /* Empty */ \
|
{ 0x0003FFFF }, /* $fp, $sp, $r0 to $r13, ?fp */ \
|
{ 0x0003FFFF }, /* $fp, $sp, $r0 to $r13, ?fp */ \
|
{ 0x00040000 }, /* $pc */ \
|
{ 0x00040000 }, /* $pc */ \
|
{ 0x00080000 }, /* ?cc */ \
|
{ 0x00080000 }, /* ?cc */ \
|
{ 0x000FFFFF } /* All registers */ \
|
{ 0x000FFFFF } /* All registers */ \
|
}
|
}
|
|
|
#define N_REG_CLASSES LIM_REG_CLASSES
|
#define N_REG_CLASSES LIM_REG_CLASSES
|
|
|
#define REG_CLASS_NAMES {\
|
#define REG_CLASS_NAMES {\
|
"NO_REGS", \
|
"NO_REGS", \
|
"GENERAL_REGS", \
|
"GENERAL_REGS", \
|
"SPECIAL_REGS", \
|
"SPECIAL_REGS", \
|
"CC_REGS", \
|
"CC_REGS", \
|
"ALL_REGS" }
|
"ALL_REGS" }
|
|
|
#define FIXED_REGISTERS { 1, 1, 0, 0, \
|
#define FIXED_REGISTERS { 1, 1, 0, 0, \
|
0, 0, 0, 0, \
|
0, 0, 0, 0, \
|
0, 0, 0, 0, \
|
0, 0, 0, 0, \
|
0, 0, 0, 1, \
|
0, 0, 0, 1, \
|
1, 1, 1, 1 }
|
1, 1, 1, 1 }
|
|
|
#define CALL_USED_REGISTERS { 1, 1, 1, 1, \
|
#define CALL_USED_REGISTERS { 1, 1, 1, 1, \
|
1, 1, 1, 1, \
|
1, 1, 1, 1, \
|
0, 0, 0, 0, \
|
0, 0, 0, 0, \
|
0, 0, 1, 1, \
|
0, 0, 1, 1, \
|
1, 1, 1, 1 }
|
1, 1, 1, 1 }
|
|
|
/* We can't copy to or from our CC register. */
|
/* We can't copy to or from our CC register. */
|
#define AVOID_CCMODE_COPIES 1
|
#define AVOID_CCMODE_COPIES 1
|
|
|
/* A C expression that is nonzero if it is permissible to store a
|
/* A C expression that is nonzero if it is permissible to store a
|
value of mode MODE in hard register number REGNO (or in several
|
value of mode MODE in hard register number REGNO (or in several
|
registers starting with that one). All gstore registers are
|
registers starting with that one). All gstore registers are
|
equivalent, so we can set this to 1. */
|
equivalent, so we can set this to 1. */
|
#define HARD_REGNO_MODE_OK(R,M) 1
|
#define HARD_REGNO_MODE_OK(R,M) 1
|
|
|
/* A C expression whose value is a register class containing hard
|
/* A C expression whose value is a register class containing hard
|
register REGNO. */
|
register REGNO. */
|
#define REGNO_REG_CLASS(R) ((R < MOXIE_PC) ? GENERAL_REGS : \
|
#define REGNO_REG_CLASS(R) ((R < MOXIE_PC) ? GENERAL_REGS : \
|
(R == MOXIE_CC ? CC_REGS : SPECIAL_REGS))
|
(R == MOXIE_CC ? CC_REGS : SPECIAL_REGS))
|
|
|
/* A C expression for the number of consecutive hard registers,
|
/* A C expression for the number of consecutive hard registers,
|
starting at register number REGNO, required to hold a value of mode
|
starting at register number REGNO, required to hold a value of mode
|
MODE. */
|
MODE. */
|
#define HARD_REGNO_NREGS(REGNO, MODE) \
|
#define HARD_REGNO_NREGS(REGNO, MODE) \
|
((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) \
|
((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) \
|
/ UNITS_PER_WORD)
|
/ UNITS_PER_WORD)
|
|
|
/* A C expression that is nonzero if a value of mode MODE1 is
|
/* A C expression that is nonzero if a value of mode MODE1 is
|
accessible in mode MODE2 without copying. */
|
accessible in mode MODE2 without copying. */
|
#define MODES_TIEABLE_P(MODE1, MODE2) 1
|
#define MODES_TIEABLE_P(MODE1, MODE2) 1
|
|
|
/* A C expression for the maximum number of consecutive registers of
|
/* A C expression for the maximum number of consecutive registers of
|
class CLASS needed to hold a value of mode MODE. */
|
class CLASS needed to hold a value of mode MODE. */
|
#define CLASS_MAX_NREGS(CLASS, MODE) \
|
#define CLASS_MAX_NREGS(CLASS, MODE) \
|
((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
|
((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
|
|
|
/* A C expression that places additional restrictions on the register
|
/* A C expression that places additional restrictions on the register
|
class to use when it is necessary to copy value X into a register
|
class to use when it is necessary to copy value X into a register
|
in class CLASS. */
|
in class CLASS. */
|
#define PREFERRED_RELOAD_CLASS(X,CLASS) CLASS
|
#define PREFERRED_RELOAD_CLASS(X,CLASS) CLASS
|
|
|
/* The Overall Framework of an Assembler File */
|
/* The Overall Framework of an Assembler File */
|
|
|
#undef ASM_SPEC
|
#undef ASM_SPEC
|
#define ASM_COMMENT_START "#"
|
#define ASM_COMMENT_START "#"
|
#define ASM_APP_ON ""
|
#define ASM_APP_ON ""
|
#define ASM_APP_OFF ""
|
#define ASM_APP_OFF ""
|
|
|
#define FILE_ASM_OP "\t.file\n"
|
#define FILE_ASM_OP "\t.file\n"
|
|
|
/* Switch to the text or data segment. */
|
/* Switch to the text or data segment. */
|
#define TEXT_SECTION_ASM_OP "\t.text"
|
#define TEXT_SECTION_ASM_OP "\t.text"
|
#define DATA_SECTION_ASM_OP "\t.data"
|
#define DATA_SECTION_ASM_OP "\t.data"
|
|
|
/* Assembler Commands for Alignment */
|
/* Assembler Commands for Alignment */
|
|
|
#define ASM_OUTPUT_ALIGN(STREAM,POWER) \
|
#define ASM_OUTPUT_ALIGN(STREAM,POWER) \
|
fprintf (STREAM, "\t.p2align\t%d\n", POWER);
|
fprintf (STREAM, "\t.p2align\t%d\n", POWER);
|
|
|
/* A C compound statement to output to stdio stream STREAM the
|
/* A C compound statement to output to stdio stream STREAM the
|
assembler syntax for an instruction operand X. */
|
assembler syntax for an instruction operand X. */
|
#define PRINT_OPERAND(STREAM, X, CODE) moxie_print_operand (STREAM, X, CODE)
|
#define PRINT_OPERAND(STREAM, X, CODE) moxie_print_operand (STREAM, X, CODE)
|
|
|
#define PRINT_OPERAND_ADDRESS(STREAM ,X) moxie_print_operand_address (STREAM, X)
|
#define PRINT_OPERAND_ADDRESS(STREAM ,X) moxie_print_operand_address (STREAM, X)
|
|
|
/* Output and Generation of Labels */
|
/* Output and Generation of Labels */
|
|
|
#define GLOBAL_ASM_OP "\t.global\t"
|
#define GLOBAL_ASM_OP "\t.global\t"
|
|
|
/* Passing Arguments in Registers */
|
/* Passing Arguments in Registers */
|
|
|
/* A C expression that controls whether a function argument is passed
|
/* A C expression that controls whether a function argument is passed
|
in a register, and which register. */
|
in a register, and which register. */
|
#define FUNCTION_ARG(CUM,MODE,TYPE,NAMED) \
|
#define FUNCTION_ARG(CUM,MODE,TYPE,NAMED) \
|
moxie_function_arg(CUM,MODE,TYPE,NAMED)
|
moxie_function_arg(CUM,MODE,TYPE,NAMED)
|
|
|
/* A C type for declaring a variable that is used as the first
|
/* A C type for declaring a variable that is used as the first
|
argument of `FUNCTION_ARG' and other related values. */
|
argument of `FUNCTION_ARG' and other related values. */
|
#define CUMULATIVE_ARGS unsigned int
|
#define CUMULATIVE_ARGS unsigned int
|
|
|
/* If defined, the maximum amount of space required for outgoing arguments
|
/* If defined, the maximum amount of space required for outgoing arguments
|
will be computed and placed into the variable
|
will be computed and placed into the variable
|
`current_function_outgoing_args_size'. No space will be pushed
|
`current_function_outgoing_args_size'. No space will be pushed
|
onto the stack for each call; instead, the function prologue should
|
onto the stack for each call; instead, the function prologue should
|
increase the stack frame size by this amount. */
|
increase the stack frame size by this amount. */
|
#define ACCUMULATE_OUTGOING_ARGS 1
|
#define ACCUMULATE_OUTGOING_ARGS 1
|
|
|
/* A C statement (sans semicolon) for initializing the variable CUM
|
/* A C statement (sans semicolon) for initializing the variable CUM
|
for the state at the beginning of the argument list.
|
for the state at the beginning of the argument list.
|
For moxie, the first arg is passed in register 2 (aka $r0). */
|
For moxie, the first arg is passed in register 2 (aka $r0). */
|
#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,FNDECL,N_NAMED_ARGS) \
|
#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,FNDECL,N_NAMED_ARGS) \
|
(CUM = MOXIE_R0)
|
(CUM = MOXIE_R0)
|
|
|
#define MOXIE_FUNCTION_ARG_SIZE(MODE, TYPE) \
|
#define MOXIE_FUNCTION_ARG_SIZE(MODE, TYPE) \
|
((MODE) != BLKmode ? GET_MODE_SIZE (MODE) \
|
((MODE) != BLKmode ? GET_MODE_SIZE (MODE) \
|
: (unsigned) int_size_in_bytes (TYPE))
|
: (unsigned) int_size_in_bytes (TYPE))
|
|
|
#define FUNCTION_ARG_ADVANCE(CUM,MODE,TYPE,NAMED) \
|
#define FUNCTION_ARG_ADVANCE(CUM,MODE,TYPE,NAMED) \
|
(CUM = (CUM < MOXIE_R6 ? \
|
(CUM = (CUM < MOXIE_R6 ? \
|
CUM + ((3 + MOXIE_FUNCTION_ARG_SIZE(MODE,TYPE))/4) : CUM ))
|
CUM + ((3 + MOXIE_FUNCTION_ARG_SIZE(MODE,TYPE))/4) : CUM ))
|
|
|
/* How Scalar Function Values Are Returned */
|
/* How Scalar Function Values Are Returned */
|
|
|
/* These macros are deprecated, but we still need them for now since
|
/* These macros are deprecated, but we still need them for now since
|
the version of gcc we're using doesn't fully support
|
the version of gcc we're using doesn't fully support
|
TARGET_FUNCTION_VALUE. */
|
TARGET_FUNCTION_VALUE. */
|
#define FUNCTION_VALUE(VALTYPE, FUNC) \
|
#define FUNCTION_VALUE(VALTYPE, FUNC) \
|
moxie_function_value (VALTYPE, FUNC, 0)
|
moxie_function_value (VALTYPE, FUNC, 0)
|
#define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) \
|
#define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) \
|
moxie_function_value (VALTYPE, FUNC, 1)
|
moxie_function_value (VALTYPE, FUNC, 1)
|
|
|
/* A C expression to create an RTX representing the place where a
|
/* A C expression to create an RTX representing the place where a
|
library function returns a value of mode MODE. */
|
library function returns a value of mode MODE. */
|
#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, 2)
|
#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, 2)
|
|
|
/* STACK AND CALLING */
|
/* STACK AND CALLING */
|
|
|
/* Define this macro if pushing a word onto the stack moves the stack
|
/* Define this macro if pushing a word onto the stack moves the stack
|
pointer to a smaller address. */
|
pointer to a smaller address. */
|
#define STACK_GROWS_DOWNWARD
|
#define STACK_GROWS_DOWNWARD
|
|
|
#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = 0
|
#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = 0
|
|
|
/* Offset from the frame pointer to the first local variable slot to
|
/* Offset from the frame pointer to the first local variable slot to
|
be allocated. */
|
be allocated. */
|
#define STARTING_FRAME_OFFSET 0
|
#define STARTING_FRAME_OFFSET 0
|
|
|
/* Define this if the above stack space is to be considered part of the
|
/* Define this if the above stack space is to be considered part of the
|
space allocated by the caller. */
|
space allocated by the caller. */
|
#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1
|
#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1
|
#define STACK_PARMS_IN_REG_PARM_AREA
|
#define STACK_PARMS_IN_REG_PARM_AREA
|
|
|
/* Define this if it is the responsibility of the caller to allocate
|
/* Define this if it is the responsibility of the caller to allocate
|
the area reserved for arguments passed in registers. */
|
the area reserved for arguments passed in registers. */
|
#define REG_PARM_STACK_SPACE(FNDECL) (6 * UNITS_PER_WORD)
|
#define REG_PARM_STACK_SPACE(FNDECL) (6 * UNITS_PER_WORD)
|
|
|
/* Offset from the argument pointer register to the first argument's
|
/* Offset from the argument pointer register to the first argument's
|
address. On some machines it may depend on the data type of the
|
address. On some machines it may depend on the data type of the
|
function. */
|
function. */
|
#define FIRST_PARM_OFFSET(F) 12
|
#define FIRST_PARM_OFFSET(F) 12
|
|
|
/* Define this macro to nonzero value if the addresses of local variable slots
|
/* Define this macro to nonzero value if the addresses of local variable slots
|
are at negative offsets from the frame pointer. */
|
are at negative offsets from the frame pointer. */
|
#define FRAME_GROWS_DOWNWARD 1
|
#define FRAME_GROWS_DOWNWARD 1
|
|
|
/* Define this macro as a C expression that is nonzero for registers that are
|
/* Define this macro as a C expression that is nonzero for registers that are
|
used by the epilogue or the return pattern. The stack and frame
|
used by the epilogue or the return pattern. The stack and frame
|
pointer registers are already assumed to be used as needed. */
|
pointer registers are already assumed to be used as needed. */
|
#define EPILOGUE_USES(R) (R == MOXIE_R5)
|
#define EPILOGUE_USES(R) (R == MOXIE_R5)
|
|
|
#define OVERRIDE_OPTIONS moxie_override_options ()
|
#define OVERRIDE_OPTIONS moxie_override_options ()
|
|
|
/* Storage Layout */
|
/* Storage Layout */
|
|
|
#define BITS_BIG_ENDIAN 0
|
#define BITS_BIG_ENDIAN 0
|
#define BYTES_BIG_ENDIAN 1
|
#define BYTES_BIG_ENDIAN 1
|
#define WORDS_BIG_ENDIAN 1
|
#define WORDS_BIG_ENDIAN 1
|
|
|
/* Alignment required for a function entry point, in bits. */
|
/* Alignment required for a function entry point, in bits. */
|
#define FUNCTION_BOUNDARY 16
|
#define FUNCTION_BOUNDARY 16
|
|
|
/* Define this macro as a C expression which is nonzero if accessing
|
/* Define this macro as a C expression which is nonzero if accessing
|
less than a word of memory (i.e. a `char' or a `short') is no
|
less than a word of memory (i.e. a `char' or a `short') is no
|
faster than accessing a word of memory. */
|
faster than accessing a word of memory. */
|
#define SLOW_BYTE_ACCESS 1
|
#define SLOW_BYTE_ACCESS 1
|
|
|
/* Number of storage units in a word; normally the size of a
|
/* Number of storage units in a word; normally the size of a
|
general-purpose register, a power of two from 1 or 8. */
|
general-purpose register, a power of two from 1 or 8. */
|
#define UNITS_PER_WORD 4
|
#define UNITS_PER_WORD 4
|
|
|
/* Define this macro to the minimum alignment enforced by hardware
|
/* Define this macro to the minimum alignment enforced by hardware
|
for the stack pointer on this machine. The definition is a C
|
for the stack pointer on this machine. The definition is a C
|
expression for the desired alignment (measured in bits). */
|
expression for the desired alignment (measured in bits). */
|
#define STACK_BOUNDARY 32
|
#define STACK_BOUNDARY 32
|
|
|
/* Normal alignment required for function parameters on the stack, in
|
/* Normal alignment required for function parameters on the stack, in
|
bits. All stack parameters receive at least this much alignment
|
bits. All stack parameters receive at least this much alignment
|
regardless of data type. */
|
regardless of data type. */
|
#define PARM_BOUNDARY 32
|
#define PARM_BOUNDARY 32
|
|
|
/* Alignment of field after `int : 0' in a structure. */
|
/* Alignment of field after `int : 0' in a structure. */
|
#define EMPTY_FIELD_BOUNDARY 32
|
#define EMPTY_FIELD_BOUNDARY 32
|
|
|
/* No data type wants to be aligned rounder than this. */
|
/* No data type wants to be aligned rounder than this. */
|
#define BIGGEST_ALIGNMENT 32
|
#define BIGGEST_ALIGNMENT 32
|
|
|
/* The best alignment to use in cases where we have a choice. */
|
/* The best alignment to use in cases where we have a choice. */
|
#define FASTEST_ALIGNMENT 32
|
#define FASTEST_ALIGNMENT 32
|
|
|
/* Every structures size must be a multiple of 8 bits. */
|
/* Every structures size must be a multiple of 8 bits. */
|
#define STRUCTURE_SIZE_BOUNDARY 8
|
#define STRUCTURE_SIZE_BOUNDARY 8
|
|
|
/* Look at the fundamental type that is used for a bit-field and use
|
/* Look at the fundamental type that is used for a bit-field and use
|
that to impose alignment on the enclosing structure.
|
that to impose alignment on the enclosing structure.
|
struct s {int a:8}; should have same alignment as "int", not "char". */
|
struct s {int a:8}; should have same alignment as "int", not "char". */
|
#define PCC_BITFIELD_TYPE_MATTERS 1
|
#define PCC_BITFIELD_TYPE_MATTERS 1
|
|
|
/* Largest integer machine mode for structures. If undefined, the default
|
/* Largest integer machine mode for structures. If undefined, the default
|
is GET_MODE_SIZE(DImode). */
|
is GET_MODE_SIZE(DImode). */
|
#define MAX_FIXED_MODE_SIZE 32
|
#define MAX_FIXED_MODE_SIZE 32
|
|
|
/* Make strings word-aligned so strcpy from constants will be faster. */
|
/* Make strings word-aligned so strcpy from constants will be faster. */
|
#define CONSTANT_ALIGNMENT(EXP, ALIGN) \
|
#define CONSTANT_ALIGNMENT(EXP, ALIGN) \
|
((TREE_CODE (EXP) == STRING_CST \
|
((TREE_CODE (EXP) == STRING_CST \
|
&& (ALIGN) < FASTEST_ALIGNMENT) \
|
&& (ALIGN) < FASTEST_ALIGNMENT) \
|
? FASTEST_ALIGNMENT : (ALIGN))
|
? FASTEST_ALIGNMENT : (ALIGN))
|
|
|
/* Make arrays of chars word-aligned for the same reasons. */
|
/* Make arrays of chars word-aligned for the same reasons. */
|
#define DATA_ALIGNMENT(TYPE, ALIGN) \
|
#define DATA_ALIGNMENT(TYPE, ALIGN) \
|
(TREE_CODE (TYPE) == ARRAY_TYPE \
|
(TREE_CODE (TYPE) == ARRAY_TYPE \
|
&& TYPE_MODE (TREE_TYPE (TYPE)) == QImode \
|
&& TYPE_MODE (TREE_TYPE (TYPE)) == QImode \
|
&& (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN))
|
&& (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN))
|
|
|
/* Set this nonzero if move instructions will actually fail to work
|
/* Set this nonzero if move instructions will actually fail to work
|
when given unaligned data. */
|
when given unaligned data. */
|
#define STRICT_ALIGNMENT 1
|
#define STRICT_ALIGNMENT 1
|
|
|
/* Generating Code for Profiling */
|
/* Generating Code for Profiling */
|
#define FUNCTION_PROFILER(FILE,LABELNO) (abort (), 0)
|
#define FUNCTION_PROFILER(FILE,LABELNO) (abort (), 0)
|
|
|
/* Trampolines for Nested Functions. */
|
/* Trampolines for Nested Functions. */
|
#define TRAMPOLINE_SIZE (2 + 6 + 6 + 2 + 2 + 6)
|
#define TRAMPOLINE_SIZE (2 + 6 + 6 + 2 + 2 + 6)
|
|
|
/* Alignment required for trampolines, in bits. */
|
/* Alignment required for trampolines, in bits. */
|
#define TRAMPOLINE_ALIGNMENT 32
|
#define TRAMPOLINE_ALIGNMENT 32
|
|
|
/* An alias for the machine mode for pointers. */
|
/* An alias for the machine mode for pointers. */
|
#define Pmode SImode
|
#define Pmode SImode
|
|
|
/* An alias for the machine mode used for memory references to
|
/* An alias for the machine mode used for memory references to
|
functions being called, in `call' RTL expressions. */
|
functions being called, in `call' RTL expressions. */
|
#define FUNCTION_MODE QImode
|
#define FUNCTION_MODE QImode
|
|
|
/* The register number of the stack pointer register, which must also
|
/* The register number of the stack pointer register, which must also
|
be a fixed register according to `FIXED_REGISTERS'. */
|
be a fixed register according to `FIXED_REGISTERS'. */
|
#define STACK_POINTER_REGNUM MOXIE_SP
|
#define STACK_POINTER_REGNUM MOXIE_SP
|
|
|
/* The register number of the frame pointer register, which is used to
|
/* The register number of the frame pointer register, which is used to
|
access automatic variables in the stack frame. */
|
access automatic variables in the stack frame. */
|
#define FRAME_POINTER_REGNUM MOXIE_QFP
|
#define FRAME_POINTER_REGNUM MOXIE_QFP
|
|
|
/* The register number of the arg pointer register, which is used to
|
/* The register number of the arg pointer register, which is used to
|
access the function's argument list. */
|
access the function's argument list. */
|
#define ARG_POINTER_REGNUM MOXIE_QAP
|
#define ARG_POINTER_REGNUM MOXIE_QAP
|
|
|
#define HARD_FRAME_POINTER_REGNUM MOXIE_FP
|
#define HARD_FRAME_POINTER_REGNUM MOXIE_FP
|
|
|
#define ELIMINABLE_REGS \
|
#define ELIMINABLE_REGS \
|
{{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \
|
{{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \
|
{ ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }}
|
{ ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }}
|
|
|
/* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It
|
/* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It
|
specifies the initial difference between the specified pair of
|
specifies the initial difference between the specified pair of
|
registers. This macro must be defined if `ELIMINABLE_REGS' is
|
registers. This macro must be defined if `ELIMINABLE_REGS' is
|
defined. */
|
defined. */
|
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
|
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
|
do { \
|
do { \
|
(OFFSET) = moxie_initial_elimination_offset ((FROM), (TO)); \
|
(OFFSET) = moxie_initial_elimination_offset ((FROM), (TO)); \
|
} while (0)
|
} while (0)
|
|
|
/* A C expression that is nonzero if REGNO is the number of a hard
|
/* A C expression that is nonzero if REGNO is the number of a hard
|
register in which function arguments are sometimes passed. */
|
register in which function arguments are sometimes passed. */
|
#define FUNCTION_ARG_REGNO_P(r) (r >= MOXIE_R0 && r <= MOXIE_R5)
|
#define FUNCTION_ARG_REGNO_P(r) (r >= MOXIE_R0 && r <= MOXIE_R5)
|
|
|
/* A C expression that is nonzero if REGNO is the number of a hard
|
/* A C expression that is nonzero if REGNO is the number of a hard
|
register in which the values of called function may come back. */
|
register in which the values of called function may come back. */
|
#define FUNCTION_VALUE_REGNO_P(r) (r == MOXIE_R0)
|
#define FUNCTION_VALUE_REGNO_P(r) (r == MOXIE_R0)
|
|
|
/* A macro whose definition is the name of the class to which a valid
|
/* A macro whose definition is the name of the class to which a valid
|
base register must belong. A base register is one used in an
|
base register must belong. A base register is one used in an
|
address which is the register value plus a displacement. */
|
address which is the register value plus a displacement. */
|
#define BASE_REG_CLASS GENERAL_REGS
|
#define BASE_REG_CLASS GENERAL_REGS
|
|
|
#define INDEX_REG_CLASS NO_REGS
|
#define INDEX_REG_CLASS NO_REGS
|
|
|
#define HARD_REGNO_OK_FOR_BASE_P(NUM) \
|
#define HARD_REGNO_OK_FOR_BASE_P(NUM) \
|
((NUM) >= 0 && (NUM) < FIRST_PSEUDO_REGISTER \
|
((NUM) >= 0 && (NUM) < FIRST_PSEUDO_REGISTER \
|
&& (REGNO_REG_CLASS(NUM) == GENERAL_REGS \
|
&& (REGNO_REG_CLASS(NUM) == GENERAL_REGS \
|
|| (NUM) == HARD_FRAME_POINTER_REGNUM))
|
|| (NUM) == HARD_FRAME_POINTER_REGNUM))
|
|
|
/* A C expression which is nonzero if register number NUM is suitable
|
/* A C expression which is nonzero if register number NUM is suitable
|
for use as a base register in operand addresses. */
|
for use as a base register in operand addresses. */
|
#ifdef REG_OK_STRICT
|
#ifdef REG_OK_STRICT
|
#define REGNO_OK_FOR_BASE_P(NUM) \
|
#define REGNO_OK_FOR_BASE_P(NUM) \
|
(HARD_REGNO_OK_FOR_BASE_P(NUM) \
|
(HARD_REGNO_OK_FOR_BASE_P(NUM) \
|
|| HARD_REGNO_OK_FOR_BASE_P(reg_renumber[(NUM)]))
|
|| HARD_REGNO_OK_FOR_BASE_P(reg_renumber[(NUM)]))
|
#else
|
#else
|
#define REGNO_OK_FOR_BASE_P(NUM) \
|
#define REGNO_OK_FOR_BASE_P(NUM) \
|
((NUM) >= FIRST_PSEUDO_REGISTER || HARD_REGNO_OK_FOR_BASE_P(NUM))
|
((NUM) >= FIRST_PSEUDO_REGISTER || HARD_REGNO_OK_FOR_BASE_P(NUM))
|
#endif
|
#endif
|
|
|
/* A C expression which is nonzero if register number NUM is suitable
|
/* A C expression which is nonzero if register number NUM is suitable
|
for use as an index register in operand addresses. */
|
for use as an index register in operand addresses. */
|
#define REGNO_OK_FOR_INDEX_P(NUM) MOXIE_FP
|
#define REGNO_OK_FOR_INDEX_P(NUM) MOXIE_FP
|
|
|
/* The maximum number of bytes that a single instruction can move
|
/* The maximum number of bytes that a single instruction can move
|
quickly between memory and registers or between two memory
|
quickly between memory and registers or between two memory
|
locations. */
|
locations. */
|
#define MOVE_MAX 4
|
#define MOVE_MAX 4
|
#define TRULY_NOOP_TRUNCATION(op,ip) 1
|
#define TRULY_NOOP_TRUNCATION(op,ip) 1
|
|
|
/* All load operations zero extend. */
|
/* All load operations zero extend. */
|
#define LOAD_EXTEND_OP(MEM) ZERO_EXTEND
|
#define LOAD_EXTEND_OP(MEM) ZERO_EXTEND
|
|
|
#define RETURN_POPS_ARGS(FUNDECL, FUNTYPE, STACK_SIZE) 0
|
#define RETURN_POPS_ARGS(FUNDECL, FUNTYPE, STACK_SIZE) 0
|
|
|
/* A C expression that is nonzero if X is a legitimate constant for
|
/* A C expression that is nonzero if X is a legitimate constant for
|
an immediate operand on the target machine. */
|
an immediate operand on the target machine. */
|
#define LEGITIMATE_CONSTANT_P(X) 1
|
#define LEGITIMATE_CONSTANT_P(X) 1
|
|
|
/* A number, the maximum number of registers that can appear in a
|
/* A number, the maximum number of registers that can appear in a
|
valid memory address. */
|
valid memory address. */
|
#define MAX_REGS_PER_ADDRESS 1
|
#define MAX_REGS_PER_ADDRESS 1
|
|
|
#define TRULY_NOOP_TRUNCATION(op,ip) 1
|
#define TRULY_NOOP_TRUNCATION(op,ip) 1
|
|
|
/* An alias for a machine mode name. This is the machine mode that
|
/* An alias for a machine mode name. This is the machine mode that
|
elements of a jump-table should have. */
|
elements of a jump-table should have. */
|
#define CASE_VECTOR_MODE SImode
|
#define CASE_VECTOR_MODE SImode
|
|
|
/* A C compound statement with a conditional `goto LABEL;' executed
|
/* A C compound statement with a conditional `goto LABEL;' executed
|
if X (an RTX) is a legitimate memory address on the target machine
|
if X (an RTX) is a legitimate memory address on the target machine
|
for a memory operand of mode MODE. */
|
for a memory operand of mode MODE. */
|
#define GO_IF_LEGITIMATE_ADDRESS(MODE,X,LABEL) \
|
#define GO_IF_LEGITIMATE_ADDRESS(MODE,X,LABEL) \
|
do { \
|
do { \
|
if (GET_CODE(X) == PLUS) \
|
if (GET_CODE(X) == PLUS) \
|
{ \
|
{ \
|
rtx op1,op2; \
|
rtx op1,op2; \
|
op1 = XEXP(X,0); \
|
op1 = XEXP(X,0); \
|
op2 = XEXP(X,1); \
|
op2 = XEXP(X,1); \
|
if (GET_CODE(op1) == REG \
|
if (GET_CODE(op1) == REG \
|
&& CONSTANT_ADDRESS_P(op2) \
|
&& CONSTANT_ADDRESS_P(op2) \
|
&& REGNO_OK_FOR_BASE_P(REGNO(op1))) \
|
&& REGNO_OK_FOR_BASE_P(REGNO(op1))) \
|
goto LABEL; \
|
goto LABEL; \
|
} \
|
} \
|
if (REG_P (X) && REGNO_OK_FOR_BASE_P (REGNO (X))) \
|
if (REG_P (X) && REGNO_OK_FOR_BASE_P (REGNO (X))) \
|
goto LABEL; \
|
goto LABEL; \
|
if (GET_CODE (X) == SYMBOL_REF \
|
if (GET_CODE (X) == SYMBOL_REF \
|
|| GET_CODE (X) == LABEL_REF \
|
|| GET_CODE (X) == LABEL_REF \
|
|| GET_CODE (X) == CONST) \
|
|| GET_CODE (X) == CONST) \
|
goto LABEL; \
|
goto LABEL; \
|
} while (0)
|
} while (0)
|
|
|
/* Run-time Target Specification */
|
/* Run-time Target Specification */
|
|
|
#define TARGET_CPU_CPP_BUILTINS() \
|
#define TARGET_CPU_CPP_BUILTINS() \
|
{ \
|
{ \
|
builtin_define_std ("moxie"); \
|
builtin_define_std ("moxie"); \
|
builtin_define_std ("MOXIE"); \
|
builtin_define_std ("MOXIE"); \
|
}
|
}
|
|
|
#define HAS_LONG_UNCOND_BRANCH true
|
#define HAS_LONG_UNCOND_BRANCH true
|
|
|
#endif /* GCC_MOXIE_H */
|
#endif /* GCC_MOXIE_H */
|
|
|
