| /* Definitions of target machine for GNU compiler. NEC V850 series |
| Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
| Free Software Foundation, Inc. |
| Contributed by Jeff Law (law@cygnus.com). |
| |
| This file is part of GCC. |
| |
| 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. |
| |
| 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 GCC; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #ifndef GCC_V850_H |
| #define GCC_V850_H |
| |
| /* These are defined in svr4.h but we want to override them. */ |
| #undef LIB_SPEC |
| #undef ENDFILE_SPEC |
| #undef LINK_SPEC |
| #undef STARTFILE_SPEC |
| #undef ASM_SPEC |
| |
| #define TARGET_CPU_generic 1 |
| #define TARGET_CPU_v850e 2 |
| #define TARGET_CPU_v850e1 3 |
| |
| #ifndef TARGET_CPU_DEFAULT |
| #define TARGET_CPU_DEFAULT TARGET_CPU_generic |
| #endif |
| |
| #define MASK_DEFAULT MASK_V850 |
| #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850}" |
| #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850__}" |
| #define TARGET_VERSION fprintf (stderr, " (NEC V850)"); |
| |
| /* Choose which processor will be the default. |
| We must pass a -mv850xx option to the assembler if no explicit -mv* option |
| is given, because the assembler's processor default may not be correct. */ |
| #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e |
| #undef MASK_DEFAULT |
| #define MASK_DEFAULT MASK_V850E |
| #undef SUBTARGET_ASM_SPEC |
| #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e}" |
| #undef SUBTARGET_CPP_SPEC |
| #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e__}" |
| #undef TARGET_VERSION |
| #define TARGET_VERSION fprintf (stderr, " (NEC V850E)"); |
| #endif |
| |
| #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e1 |
| #undef MASK_DEFAULT |
| #define MASK_DEFAULT MASK_V850E /* No practical difference. */ |
| #undef SUBTARGET_ASM_SPEC |
| #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e1}" |
| #undef SUBTARGET_CPP_SPEC |
| #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e1__} %{mv850e1:-D__v850e1__}" |
| #undef TARGET_VERSION |
| #define TARGET_VERSION fprintf (stderr, " (NEC V850E1)"); |
| #endif |
| |
| #define ASM_SPEC "%{mv*:-mv%*}" |
| #define CPP_SPEC "%{mv850e:-D__v850e__} %{mv850:-D__v850__} %(subtarget_cpp_spec)" |
| |
| #define EXTRA_SPECS \ |
| { "subtarget_asm_spec", SUBTARGET_ASM_SPEC }, \ |
| { "subtarget_cpp_spec", SUBTARGET_CPP_SPEC } |
| |
| /* Names to predefine in the preprocessor for this target machine. */ |
| #define TARGET_CPU_CPP_BUILTINS() do { \ |
| builtin_define( "__v851__" ); \ |
| builtin_define( "__v850" ); \ |
| builtin_assert( "machine=v850" ); \ |
| builtin_assert( "cpu=v850" ); \ |
| } while(0) |
| |
| /* Run-time compilation parameters selecting different hardware subsets. */ |
| |
| extern int target_flags; |
| |
| /* Target flags bits, see below for an explanation of the bits. */ |
| #define MASK_GHS 0x00000001 |
| #define MASK_LONG_CALLS 0x00000002 |
| #define MASK_EP 0x00000004 |
| #define MASK_PROLOG_FUNCTION 0x00000008 |
| #define MASK_DEBUG 0x40000000 |
| |
| #define MASK_CPU 0x00000030 |
| #define MASK_V850 0x00000010 |
| #define MASK_V850E 0x00000020 |
| #define MASK_SMALL_SLD 0x00000040 |
| |
| #define MASK_BIG_SWITCH 0x00000100 |
| #define MASK_NO_APP_REGS 0x00000200 |
| #define MASK_DISABLE_CALLT 0x00000400 |
| #define MASK_STRICT_ALIGN 0x00000800 |
| |
| #define MASK_US_BIT_SET 0x00001000 |
| #define MASK_US_MASK_SET 0x00002000 |
| |
| /* Macros used in the machine description to test the flags. */ |
| |
| /* The GHS calling convention support doesn't really work, |
| mostly due to a lack of documentation. Outstanding issues: |
| |
| * How do varargs & stdarg really work. How to they handle |
| passing structures (if at all). |
| |
| * Doubles are normally 4 byte aligned, except in argument |
| lists where they are 8 byte aligned. Is the alignment |
| in the argument list based on the first parameter, |
| first stack parameter, etc etc. |
| |
| * Passing/returning of large structures probably isn't the same |
| as GHS. We don't have enough documentation on their conventions |
| to be compatible. |
| |
| * Tests of TARGET_SETUP_INCOMING_VARARGS need to be made runtime checks |
| since it depends on TARGET_GHS. */ |
| #define TARGET_GHS (target_flags & MASK_GHS) |
| |
| /* Don't do PC-relative calls, instead load the address of the target |
| function into a register and perform a register indirect call. */ |
| #define TARGET_LONG_CALLS (target_flags & MASK_LONG_CALLS) |
| |
| /* Whether to optimize space by using ep (r30) for pointers with small offsets |
| in basic blocks. */ |
| #define TARGET_EP (target_flags & MASK_EP) |
| |
| /* Whether to call out-of-line functions to save registers or not. */ |
| #define TARGET_PROLOG_FUNCTION (target_flags & MASK_PROLOG_FUNCTION) |
| |
| #define TARGET_V850 ((target_flags & MASK_CPU) == MASK_V850) |
| |
| /* Whether to emit 2 byte per entry or 4 byte per entry switch tables. */ |
| #define TARGET_BIG_SWITCH (target_flags & MASK_BIG_SWITCH) |
| |
| /* General debug flag. */ |
| #define TARGET_DEBUG (target_flags & MASK_DEBUG) |
| #define TARGET_V850E ((target_flags & MASK_V850E) == MASK_V850E) |
| |
| #define TARGET_US_BIT_SET (target_flags & MASK_US_BIT_SET) |
| |
| /* Whether to assume that the SLD.B and SLD.H instructions only have small |
| displacement fields, thus allowing the generated code to run on any of |
| the V850 range of processors. */ |
| #define TARGET_SMALL_SLD (target_flags & MASK_SMALL_SLD) |
| |
| /* True if callt will not be used for function prolog & epilog. */ |
| #define TARGET_DISABLE_CALLT (target_flags & MASK_DISABLE_CALLT) |
| |
| /* False if r2 and r5 can be used by the compiler. True if r2 |
| and r5 are to be fixed registers (for compatibility with GHS). */ |
| #define TARGET_NO_APP_REGS (target_flags & MASK_NO_APP_REGS) |
| |
| #define TARGET_STRICT_ALIGN (target_flags & MASK_STRICT_ALIGN) |
| |
| /* Macro to define tables used to set the flags. |
| This is a list in braces of pairs in braces, |
| each pair being { "NAME", VALUE } |
| where VALUE is the bits to set or minus the bits to clear. |
| An empty string NAME is used to identify the default VALUE. */ |
| |
| #define TARGET_SWITCHES \ |
| {{ "ghs", MASK_GHS, N_("Support Green Hills ABI") }, \ |
| { "no-ghs", -MASK_GHS, "" }, \ |
| { "long-calls", MASK_LONG_CALLS, \ |
| N_("Prohibit PC relative function calls") },\ |
| { "no-long-calls", -MASK_LONG_CALLS, "" }, \ |
| { "ep", MASK_EP, \ |
| N_("Reuse r30 on a per function basis") }, \ |
| { "no-ep", -MASK_EP, "" }, \ |
| { "prolog-function", MASK_PROLOG_FUNCTION, \ |
| N_("Use stubs for function prologues") }, \ |
| { "no-prolog-function", -MASK_PROLOG_FUNCTION, "" }, \ |
| { "space", MASK_EP | MASK_PROLOG_FUNCTION, \ |
| N_("Same as: -mep -mprolog-function") }, \ |
| { "debug", MASK_DEBUG, N_("Enable backend debugging") }, \ |
| { "v850", MASK_V850, \ |
| N_("Compile for the v850 processor") }, \ |
| { "v850", -(MASK_V850 ^ MASK_CPU), "" }, \ |
| { "v850e1", MASK_V850E, N_("Compile for v850e1 processor") }, \ |
| { "v850e1", -(MASK_V850E ^ MASK_CPU), "" }, /* Make sure that the other bits are cleared. */ \ |
| { "v850e", MASK_V850E, N_("Compile for v850e processor") }, \ |
| { "v850e", -(MASK_V850E ^ MASK_CPU), "" }, /* Make sure that the other bits are cleared. */ \ |
| { "small-sld", MASK_SMALL_SLD, N_("Enable the use of the short load instructions") }, \ |
| { "no-small-sld", -MASK_SMALL_SLD, "" }, \ |
| { "disable-callt", MASK_DISABLE_CALLT, \ |
| N_("Do not use the callt instruction") }, \ |
| { "no-disable-callt", -MASK_DISABLE_CALLT, "" }, \ |
| { "US-bit-set", (MASK_US_BIT_SET | MASK_US_MASK_SET), "" }, \ |
| { "no-US-bit-set", -MASK_US_BIT_SET, "" }, \ |
| { "no-US-bit-set", MASK_US_MASK_SET, "" }, \ |
| { "app-regs", -MASK_NO_APP_REGS, "" }, \ |
| { "no-app-regs", MASK_NO_APP_REGS, \ |
| N_("Do not use registers r2 and r5") }, \ |
| { "strict-align", MASK_STRICT_ALIGN, \ |
| N_("Enforce strict alignment") }, \ |
| { "no-strict-align", -MASK_STRICT_ALIGN, "" }, \ |
| { "big-switch", MASK_BIG_SWITCH, \ |
| N_("Use 4 byte entries in switch tables") },\ |
| { "", MASK_DEFAULT, ""}} |
| |
| /* Information about the various small memory areas. */ |
| struct small_memory_info { |
| const char *name; |
| const char *value; |
| long max; |
| long physical_max; |
| }; |
| |
| enum small_memory_type { |
| /* tiny data area, using EP as base register */ |
| SMALL_MEMORY_TDA = 0, |
| /* small data area using dp as base register */ |
| SMALL_MEMORY_SDA, |
| /* zero data area using r0 as base register */ |
| SMALL_MEMORY_ZDA, |
| SMALL_MEMORY_max |
| }; |
| |
| extern struct small_memory_info small_memory[(int)SMALL_MEMORY_max]; |
| |
| #define TARGET_OPTIONS \ |
| { \ |
| { "tda=", &small_memory[ (int)SMALL_MEMORY_TDA ].value, \ |
| N_("Set the max size of data eligible for the TDA area"), 0}, \ |
| { "tda-", &small_memory[ (int)SMALL_MEMORY_TDA ].value, "", 0}, \ |
| { "sda=", &small_memory[ (int)SMALL_MEMORY_SDA ].value, \ |
| N_("Set the max size of data eligible for the SDA area"), 0}, \ |
| { "sda-", &small_memory[ (int)SMALL_MEMORY_SDA ].value, "", 0}, \ |
| { "zda=", &small_memory[ (int)SMALL_MEMORY_ZDA ].value, \ |
| N_("Set the max size of data eligible for the ZDA area"), 0}, \ |
| { "zda-", &small_memory[ (int)SMALL_MEMORY_ZDA ].value, "", 0}, \ |
| } |
| |
| /* 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 |
| defined, is executed once just after all the command options have |
| been parsed. |
| |
| Don't use this macro to turn on various extra optimizations for |
| `-O'. That is what `OPTIMIZATION_OPTIONS' is for. */ |
| #define OVERRIDE_OPTIONS override_options () |
| |
| |
| /* Show we can debug even without a frame pointer. */ |
| #define CAN_DEBUG_WITHOUT_FP |
| |
| /* Some machines may desire to change what optimizations are |
| performed for various optimization levels. This macro, if |
| defined, is executed once just after the optimization level is |
| determined and before the remainder of the command options have |
| been parsed. Values set in this macro are used as the default |
| values for the other command line options. |
| |
| LEVEL is the optimization level specified; 2 if `-O2' is |
| specified, 1 if `-O' is specified, and 0 if neither is specified. |
| |
| SIZE is nonzero if `-Os' is specified, 0 otherwise. |
| |
| You should not use this macro to change options that are not |
| machine-specific. These should uniformly selected by the same |
| optimization level on all supported machines. Use this macro to |
| enable machine-specific optimizations. |
| |
| *Do not examine `write_symbols' in this macro!* The debugging |
| options are not supposed to alter the generated code. */ |
| |
| #define OPTIMIZATION_OPTIONS(LEVEL,SIZE) \ |
| { \ |
| target_flags |= MASK_STRICT_ALIGN; \ |
| if (LEVEL) \ |
| target_flags |= (MASK_EP | MASK_PROLOG_FUNCTION); \ |
| } |
| |
| |
| /* Target machine storage layout */ |
| |
| /* Define this if most significant bit is lowest numbered |
| in instructions that operate on numbered bit-fields. |
| This is not true on the NEC V850. */ |
| #define BITS_BIG_ENDIAN 0 |
| |
| /* Define this if most significant byte of a word is the lowest numbered. */ |
| /* This is not true on the NEC V850. */ |
| #define BYTES_BIG_ENDIAN 0 |
| |
| /* Define this if most significant word of a multiword number is lowest |
| numbered. |
| This is not true on the NEC V850. */ |
| #define WORDS_BIG_ENDIAN 0 |
| |
| /* Width of a word, in units (bytes). */ |
| #define UNITS_PER_WORD 4 |
| |
| /* Define this macro if it is advisable to hold scalars in registers |
| in a wider mode than that declared by the program. In such cases, |
| the value is constrained to be within the bounds of the declared |
| type, but kept valid in the wider mode. The signedness of the |
| extension may differ from that of the type. |
| |
| Some simple experiments have shown that leaving UNSIGNEDP alone |
| generates the best overall code. */ |
| |
| #define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ |
| if (GET_MODE_CLASS (MODE) == MODE_INT \ |
| && GET_MODE_SIZE (MODE) < 4) \ |
| { (MODE) = SImode; } |
| |
| /* Allocation boundary (in *bits*) for storing arguments in argument list. */ |
| #define PARM_BOUNDARY 32 |
| |
| /* The stack goes in 32 bit lumps. */ |
| #define STACK_BOUNDARY 32 |
| |
| /* Allocation boundary (in *bits*) for the code of a function. |
| 16 is the minimum boundary; 32 would give better performance. */ |
| #define FUNCTION_BOUNDARY 16 |
| |
| /* No data type wants to be aligned rounder than this. */ |
| #define BIGGEST_ALIGNMENT 32 |
| |
| /* Alignment of field after `int : 0' in a structure. */ |
| #define EMPTY_FIELD_BOUNDARY 32 |
| |
| /* No structure field wants to be aligned rounder than this. */ |
| #define BIGGEST_FIELD_ALIGNMENT 32 |
| |
| /* Define this if move instructions will actually fail to work |
| when given unaligned data. */ |
| #define STRICT_ALIGNMENT TARGET_STRICT_ALIGN |
| |
| /* Define this as 1 if `char' should by default be signed; else as 0. |
| |
| On the NEC V850, loads do sign extension, so make this default. */ |
| #define DEFAULT_SIGNED_CHAR 1 |
| |
| /* Standard register usage. */ |
| |
| /* Number of actual hardware registers. |
| The hardware registers are assigned numbers for the compiler |
| from 0 to just below FIRST_PSEUDO_REGISTER. |
| |
| All registers that the compiler knows about must be given numbers, |
| even those that are not normally considered general registers. */ |
| |
| #define FIRST_PSEUDO_REGISTER 34 |
| |
| /* 1 for registers that have pervasive standard uses |
| and are not available for the register allocator. */ |
| |
| #define FIXED_REGISTERS \ |
| { 1, 1, 0, 1, 1, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, 0, 1, 0, \ |
| 1, 1} |
| |
| /* 1 for registers not available across function calls. |
| These must include the FIXED_REGISTERS and also any |
| registers that can be used without being saved. |
| The latter must include the registers where values are returned |
| and the register where structure-value addresses are passed. |
| Aside from that, you can include as many other registers as you |
| like. */ |
| |
| #define CALL_USED_REGISTERS \ |
| { 1, 1, 0, 1, 1, 1, 1, 1, \ |
| 1, 1, 1, 1, 1, 1, 1, 1, \ |
| 1, 1, 1, 1, 0, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, 0, 1, 1, \ |
| 1, 1} |
| |
| /* List the order in which to allocate registers. Each register must be |
| listed once, even those in FIXED_REGISTERS. |
| |
| On the 850, we make the return registers first, then all of the volatile |
| registers, then the saved registers in reverse order to better save the |
| registers with an out of line function, and finally the fixed |
| registers. */ |
| |
| #define REG_ALLOC_ORDER \ |
| { \ |
| 10, 11, /* return registers */ \ |
| 12, 13, 14, 15, 16, 17, 18, 19, /* scratch registers */ \ |
| 6, 7, 8, 9, 31, /* argument registers */ \ |
| 29, 28, 27, 26, 25, 24, 23, 22, /* saved registers */ \ |
| 21, 20, 2, \ |
| 0, 1, 3, 4, 5, 30, 32, 33 /* fixed registers */ \ |
| } |
| |
| /* If TARGET_NO_APP_REGS is not defined then add r2 and r5 to |
| the pool of fixed registers. See PR 14505. */ |
| #define CONDITIONAL_REGISTER_USAGE \ |
| { \ |
| if (TARGET_NO_APP_REGS) \ |
| { \ |
| fixed_regs[2] = 1; call_used_regs[2] = 1; \ |
| fixed_regs[5] = 1; call_used_regs[5] = 1; \ |
| } \ |
| } |
| |
| /* Return number of consecutive hard regs needed starting at reg REGNO |
| to hold something of mode MODE. |
| |
| This is ordinarily the length in words of a value of mode MODE |
| but can be less for certain modes in special long registers. */ |
| |
| #define HARD_REGNO_NREGS(REGNO, MODE) \ |
| ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) |
| |
| /* Value is 1 if hard register REGNO can hold a value of machine-mode |
| MODE. */ |
| |
| #define HARD_REGNO_MODE_OK(REGNO, MODE) \ |
| ((((REGNO) & 1) == 0) || (GET_MODE_SIZE (MODE) <= 4)) |
| |
| /* Value is 1 if it is a good idea to tie two pseudo registers |
| when one has mode MODE1 and one has mode MODE2. |
| If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, |
| for any hard reg, then this must be 0 for correct output. */ |
| #define MODES_TIEABLE_P(MODE1, MODE2) \ |
| (MODE1 == MODE2 || (GET_MODE_SIZE (MODE1) <= 4 && GET_MODE_SIZE (MODE2) <= 4)) |
| |
| |
| /* Define the classes of registers for register constraints in the |
| machine description. Also define ranges of constants. |
| |
| One of the classes must always be named ALL_REGS and include all hard regs. |
| If there is more than one class, another class must be named NO_REGS |
| and contain no registers. |
| |
| The name GENERAL_REGS must be the name of a class (or an alias for |
| another name such as ALL_REGS). This is the class of registers |
| that is allowed by "g" or "r" in a register constraint. |
| Also, registers outside this class are allocated only when |
| instructions express preferences for them. |
| |
| The classes must be numbered in nondecreasing order; that is, |
| a larger-numbered class must never be contained completely |
| in a smaller-numbered class. |
| |
| For any two classes, it is very desirable that there be another |
| class that represents their union. */ |
| |
| enum reg_class |
| { |
| NO_REGS, GENERAL_REGS, ALL_REGS, LIM_REG_CLASSES |
| }; |
| |
| #define N_REG_CLASSES (int) LIM_REG_CLASSES |
| |
| /* Give names of register classes as strings for dump file. */ |
| |
| #define REG_CLASS_NAMES \ |
| { "NO_REGS", "GENERAL_REGS", "ALL_REGS", "LIM_REGS" } |
| |
| /* Define which registers fit in which classes. |
| This is an initializer for a vector of HARD_REG_SET |
| of length N_REG_CLASSES. */ |
| |
| #define REG_CLASS_CONTENTS \ |
| { \ |
| { 0x00000000 }, /* NO_REGS */ \ |
| { 0xffffffff }, /* GENERAL_REGS */ \ |
| { 0xffffffff }, /* ALL_REGS */ \ |
| } |
| |
| /* The same information, inverted: |
| Return the class number of the smallest class containing |
| reg number REGNO. This could be a conditional expression |
| or could index an array. */ |
| |
| #define REGNO_REG_CLASS(REGNO) GENERAL_REGS |
| |
| /* The class value for index registers, and the one for base regs. */ |
| |
| #define INDEX_REG_CLASS NO_REGS |
| #define BASE_REG_CLASS GENERAL_REGS |
| |
| /* Get reg_class from a letter such as appears in the machine description. */ |
| |
| #define REG_CLASS_FROM_LETTER(C) (NO_REGS) |
| |
| /* Macros to check register numbers against specific register classes. */ |
| |
| /* These assume that REGNO is a hard or pseudo reg number. |
| They give nonzero only if REGNO is a hard reg of the suitable class |
| or a pseudo reg currently allocated to a suitable hard reg. |
| Since they use reg_renumber, they are safe only once reg_renumber |
| has been allocated, which happens in local-alloc.c. */ |
| |
| #define REGNO_OK_FOR_BASE_P(regno) \ |
| ((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0) |
| |
| #define REGNO_OK_FOR_INDEX_P(regno) 0 |
| |
| /* Given an rtx X being reloaded into a reg required to be |
| in class CLASS, return the class of reg to actually use. |
| In general this is just CLASS; but on some machines |
| in some cases it is preferable to use a more restrictive class. */ |
| |
| #define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS) |
| |
| /* Return the maximum number of consecutive registers |
| needed to represent mode MODE in a register of class CLASS. */ |
| |
| #define CLASS_MAX_NREGS(CLASS, MODE) \ |
| ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) |
| |
| /* The letters I, J, K, L, M, N, O, P in a register constraint string |
| can be used to stand for particular ranges of immediate operands. |
| This macro defines what the ranges are. |
| C is the letter, and VALUE is a constant value. |
| Return 1 if VALUE is in the range specified by C. */ |
| |
| #define INT_7_BITS(VALUE) ((unsigned) (VALUE) + 0x40 < 0x80) |
| #define INT_8_BITS(VALUE) ((unsigned) (VALUE) + 0x80 < 0x100) |
| /* zero */ |
| #define CONST_OK_FOR_I(VALUE) ((VALUE) == 0) |
| /* 5 bit signed immediate */ |
| #define CONST_OK_FOR_J(VALUE) ((unsigned) (VALUE) + 0x10 < 0x20) |
| /* 16 bit signed immediate */ |
| #define CONST_OK_FOR_K(VALUE) ((unsigned) (VALUE) + 0x8000 < 0x10000) |
| /* valid constant for movhi instruction. */ |
| #define CONST_OK_FOR_L(VALUE) \ |
| (((unsigned) ((int) (VALUE) >> 16) + 0x8000 < 0x10000) \ |
| && CONST_OK_FOR_I ((VALUE & 0xffff))) |
| /* 16 bit unsigned immediate */ |
| #define CONST_OK_FOR_M(VALUE) ((unsigned)(VALUE) < 0x10000) |
| /* 5 bit unsigned immediate in shift instructions */ |
| #define CONST_OK_FOR_N(VALUE) ((unsigned) (VALUE) <= 31) |
| /* 9 bit signed immediate for word multiply instruction. */ |
| #define CONST_OK_FOR_O(VALUE) ((unsigned) (VALUE) + 0x100 < 0x200) |
| |
| #define CONST_OK_FOR_P(VALUE) 0 |
| |
| #define CONST_OK_FOR_LETTER_P(VALUE, C) \ |
| ((C) == 'I' ? CONST_OK_FOR_I (VALUE) : \ |
| (C) == 'J' ? CONST_OK_FOR_J (VALUE) : \ |
| (C) == 'K' ? CONST_OK_FOR_K (VALUE) : \ |
| (C) == 'L' ? CONST_OK_FOR_L (VALUE) : \ |
| (C) == 'M' ? CONST_OK_FOR_M (VALUE) : \ |
| (C) == 'N' ? CONST_OK_FOR_N (VALUE) : \ |
| (C) == 'O' ? CONST_OK_FOR_O (VALUE) : \ |
| (C) == 'P' ? CONST_OK_FOR_P (VALUE) : \ |
| 0) |
| |
| /* Similar, but for floating constants, and defining letters G and H. |
| Here VALUE is the CONST_DOUBLE rtx itself. |
| |
| `G' is a zero of some form. */ |
| |
| #define CONST_DOUBLE_OK_FOR_G(VALUE) \ |
| ((GET_MODE_CLASS (GET_MODE (VALUE)) == MODE_FLOAT \ |
| && (VALUE) == CONST0_RTX (GET_MODE (VALUE))) \ |
| || (GET_MODE_CLASS (GET_MODE (VALUE)) == MODE_INT \ |
| && CONST_DOUBLE_LOW (VALUE) == 0 \ |
| && CONST_DOUBLE_HIGH (VALUE) == 0)) |
| |
| #define CONST_DOUBLE_OK_FOR_H(VALUE) 0 |
| |
| #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \ |
| ((C) == 'G' ? CONST_DOUBLE_OK_FOR_G (VALUE) \ |
| : (C) == 'H' ? CONST_DOUBLE_OK_FOR_H (VALUE) \ |
| : 0) |
| |
| |
| /* Stack layout; function entry, exit and calling. */ |
| |
| /* Define this if pushing a word on the stack |
| makes the stack pointer a smaller address. */ |
| |
| #define STACK_GROWS_DOWNWARD |
| |
| /* Define this if the nominal address of the stack frame |
| is at the high-address end of the local variables; |
| that is, each additional local variable allocated |
| goes at a more negative offset in the frame. */ |
| |
| #define FRAME_GROWS_DOWNWARD |
| |
| /* Offset within stack frame to start allocating local variables at. |
| If FRAME_GROWS_DOWNWARD, this is the offset to the END of the |
| first local allocated. Otherwise, it is the offset to the BEGINNING |
| of the first local allocated. */ |
| |
| #define STARTING_FRAME_OFFSET 0 |
| |
| /* Offset of first parameter from the argument pointer register value. */ |
| /* Is equal to the size of the saved fp + pc, even if an fp isn't |
| saved since the value is used before we know. */ |
| |
| #define FIRST_PARM_OFFSET(FNDECL) 0 |
| |
| /* Specify the registers used for certain standard purposes. |
| The values of these macros are register numbers. */ |
| |
| /* Register to use for pushing function arguments. */ |
| #define STACK_POINTER_REGNUM 3 |
| |
| /* Base register for access to local variables of the function. */ |
| #define FRAME_POINTER_REGNUM 32 |
| |
| /* Register containing return address from latest function call. */ |
| #define LINK_POINTER_REGNUM 31 |
| |
| /* On some machines the offset between the frame pointer and starting |
| offset of the automatic variables is not known until after register |
| allocation has been done (for example, because the saved registers |
| are between these two locations). On those machines, define |
| `FRAME_POINTER_REGNUM' the number of a special, fixed register to |
| be used internally until the offset is known, and define |
| `HARD_FRAME_POINTER_REGNUM' to be actual the hard register number |
| used for the frame pointer. |
| |
| You should define this macro only in the very rare circumstances |
| when it is not possible to calculate the offset between the frame |
| pointer and the automatic variables until after register |
| allocation has been completed. When this macro is defined, you |
| must also indicate in your definition of `ELIMINABLE_REGS' how to |
| eliminate `FRAME_POINTER_REGNUM' into either |
| `HARD_FRAME_POINTER_REGNUM' or `STACK_POINTER_REGNUM'. |
| |
| Do not define this macro if it would be the same as |
| `FRAME_POINTER_REGNUM'. */ |
| #undef HARD_FRAME_POINTER_REGNUM |
| #define HARD_FRAME_POINTER_REGNUM 29 |
| |
| /* Base register for access to arguments of the function. */ |
| #define ARG_POINTER_REGNUM 33 |
| |
| /* Register in which static-chain is passed to a function. */ |
| #define STATIC_CHAIN_REGNUM 20 |
| |
| /* Value should be nonzero if functions must have frame pointers. |
| Zero means the frame pointer need not be set up (and parms |
| may be accessed via the stack pointer) in functions that seem suitable. |
| This is computed in `reload', in reload1.c. */ |
| #define FRAME_POINTER_REQUIRED 0 |
| |
| /* If defined, this macro specifies a table of register pairs used to |
| eliminate unneeded registers that point into the stack frame. If |
| it is not defined, the only elimination attempted by the compiler |
| is to replace references to the frame pointer with references to |
| the stack pointer. |
| |
| The definition of this macro is a list of structure |
| initializations, each of which specifies an original and |
| replacement register. |
| |
| On some machines, the position of the argument pointer is not |
| known until the compilation is completed. In such a case, a |
| separate hard register must be used for the argument pointer. |
| This register can be eliminated by replacing it with either the |
| frame pointer or the argument pointer, depending on whether or not |
| the frame pointer has been eliminated. |
| |
| In this case, you might specify: |
| #define ELIMINABLE_REGS \ |
| {{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ |
| {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ |
| {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} |
| |
| Note that the elimination of the argument pointer with the stack |
| pointer is specified first since that is the preferred elimination. */ |
| |
| #define ELIMINABLE_REGS \ |
| {{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }, \ |
| { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \ |
| { ARG_POINTER_REGNUM, STACK_POINTER_REGNUM }, \ |
| { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }} \ |
| |
| /* A C expression that returns nonzero if the compiler is allowed to |
| try to replace register number FROM-REG with register number |
| TO-REG. This macro need only be defined if `ELIMINABLE_REGS' is |
| defined, and will usually be the constant 1, since most of the |
| cases preventing register elimination are things that the compiler |
| already knows about. */ |
| |
| #define CAN_ELIMINATE(FROM, TO) \ |
| ((TO) == STACK_POINTER_REGNUM ? ! frame_pointer_needed : 1) |
| |
| /* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It |
| specifies the initial difference between the specified pair of |
| registers. This macro must be defined if `ELIMINABLE_REGS' is |
| defined. */ |
| |
| #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ |
| { \ |
| if ((FROM) == FRAME_POINTER_REGNUM) \ |
| (OFFSET) = get_frame_size () + current_function_outgoing_args_size; \ |
| else if ((FROM) == ARG_POINTER_REGNUM) \ |
| (OFFSET) = compute_frame_size (get_frame_size (), (long *)0); \ |
| else \ |
| abort (); \ |
| } |
| |
| /* Keep the stack pointer constant throughout the function. */ |
| #define ACCUMULATE_OUTGOING_ARGS 1 |
| |
| /* Value is the number of bytes of arguments automatically |
| popped when returning from a subroutine call. |
| FUNDECL is the declaration node of the function (as a tree), |
| FUNTYPE is the data type of the function (as a tree), |
| or for a library call it is an identifier node for the subroutine name. |
| SIZE is the number of bytes of arguments passed on the stack. */ |
| |
| #define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0 |
| |
| #define RETURN_ADDR_RTX(COUNT, FP) v850_return_addr (COUNT) |
| |
| /* Define a data type for recording info about an argument list |
| during the scan of that argument list. This data type should |
| hold all necessary information about the function itself |
| and about the args processed so far, enough to enable macros |
| such as FUNCTION_ARG to determine where the next arg should go. */ |
| |
| #define CUMULATIVE_ARGS struct cum_arg |
| struct cum_arg { int nbytes; int anonymous_args; }; |
| |
| /* Define where to put the arguments to a function. |
| Value is zero to push the argument on the stack, |
| or a hard register in which to store the argument. |
| |
| MODE is the argument's machine mode. |
| TYPE is the data type of the argument (as a tree). |
| This is null for libcalls where that information may |
| not be available. |
| CUM is a variable of type CUMULATIVE_ARGS which gives info about |
| the preceding args and about the function being called. |
| NAMED is nonzero if this argument is a named parameter |
| (otherwise it is an extra parameter matching an ellipsis). */ |
| |
| #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ |
| function_arg (&CUM, MODE, TYPE, NAMED) |
| |
| /* Initialize a variable CUM of type CUMULATIVE_ARGS |
| for a call to a function whose data type is FNTYPE. |
| For a library call, FNTYPE is 0. */ |
| |
| #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ |
| ((CUM).nbytes = 0, (CUM).anonymous_args = 0) |
| |
| /* Update the data in CUM to advance over an argument |
| of mode MODE and data type TYPE. |
| (TYPE is null for libcalls where that information may not be available.) */ |
| |
| #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ |
| ((CUM).nbytes += ((MODE) != BLKmode \ |
| ? (GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) & -UNITS_PER_WORD \ |
| : (int_size_in_bytes (TYPE) + UNITS_PER_WORD - 1) & -UNITS_PER_WORD)) |
| |
| /* When a parameter is passed in a register, stack space is still |
| allocated for it. */ |
| #define REG_PARM_STACK_SPACE(DECL) (!TARGET_GHS ? 16 : 0) |
| |
| /* Define this if the above stack space is to be considered part of the |
| space allocated by the caller. */ |
| #define OUTGOING_REG_PARM_STACK_SPACE |
| |
| /* 1 if N is a possible register number for function argument passing. */ |
| |
| #define FUNCTION_ARG_REGNO_P(N) (N >= 6 && N <= 9) |
| |
| /* Define how to find the value returned by a function. |
| VALTYPE is the data type of the value (as a tree). |
| If the precise function being called is known, FUNC is its FUNCTION_DECL; |
| otherwise, FUNC is 0. */ |
| |
| #define FUNCTION_VALUE(VALTYPE, FUNC) \ |
| gen_rtx_REG (TYPE_MODE (VALTYPE), 10) |
| |
| /* Define how to find the value returned by a library function |
| assuming the value has mode MODE. */ |
| |
| #define LIBCALL_VALUE(MODE) \ |
| gen_rtx_REG (MODE, 10) |
| |
| /* 1 if N is a possible register number for a function value. */ |
| |
| #define FUNCTION_VALUE_REGNO_P(N) ((N) == 10) |
| |
| #define DEFAULT_PCC_STRUCT_RETURN 0 |
| |
| /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, |
| the stack pointer does not matter. The value is tested only in |
| functions that have frame pointers. |
| No definition is equivalent to always zero. */ |
| |
| #define EXIT_IGNORE_STACK 1 |
| |
| /* Define this macro as a C expression that is nonzero for registers |
| used by the epilogue or the `return' pattern. */ |
| |
| #define EPILOGUE_USES(REGNO) \ |
| (reload_completed && (REGNO) == LINK_POINTER_REGNUM) |
| |
| /* Output assembler code to FILE to increment profiler label # LABELNO |
| for profiling a function entry. */ |
| |
| #define FUNCTION_PROFILER(FILE, LABELNO) ; |
| |
| #define TRAMPOLINE_TEMPLATE(FILE) \ |
| do { \ |
| fprintf (FILE, "\tjarl .+4,r12\n"); \ |
| fprintf (FILE, "\tld.w 12[r12],r20\n"); \ |
| fprintf (FILE, "\tld.w 16[r12],r12\n"); \ |
| fprintf (FILE, "\tjmp [r12]\n"); \ |
| fprintf (FILE, "\tnop\n"); \ |
| fprintf (FILE, "\t.long 0\n"); \ |
| fprintf (FILE, "\t.long 0\n"); \ |
| } while (0) |
| |
| /* Length in units of the trampoline for entering a nested function. */ |
| |
| #define TRAMPOLINE_SIZE 24 |
| |
| /* Emit RTL insns to initialize the variable parts of a trampoline. |
| FNADDR is an RTX for the address of the function's pure code. |
| CXT is an RTX for the static chain value for the function. */ |
| |
| #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ |
| { \ |
| emit_move_insn (gen_rtx_MEM (SImode, plus_constant ((TRAMP), 16)), \ |
| (CXT)); \ |
| emit_move_insn (gen_rtx_MEM (SImode, plus_constant ((TRAMP), 20)), \ |
| (FNADDR)); \ |
| } |
| |
| /* Addressing modes, and classification of registers for them. */ |
| |
| |
| /* 1 if X is an rtx for a constant that is a valid address. */ |
| |
| /* ??? This seems too exclusive. May get better code by accepting more |
| possibilities here, in particular, should accept ZDA_NAME SYMBOL_REFs. */ |
| |
| #define CONSTANT_ADDRESS_P(X) \ |
| (GET_CODE (X) == CONST_INT \ |
| && CONST_OK_FOR_K (INTVAL (X))) |
| |
| /* Maximum number of registers that can appear in a valid memory address. */ |
| |
| #define MAX_REGS_PER_ADDRESS 1 |
| |
| /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx |
| and check its validity for a certain class. |
| We have two alternate definitions for each of them. |
| The usual definition accepts all pseudo regs; the other rejects |
| them unless they have been allocated suitable hard regs. |
| The symbol REG_OK_STRICT causes the latter definition to be used. |
| |
| Most source files want to accept pseudo regs in the hope that |
| they will get allocated to the class that the insn wants them to be in. |
| Source files for reload pass need to be strict. |
| After reload, it makes no difference, since pseudo regs have |
| been eliminated by then. */ |
| |
| #ifndef REG_OK_STRICT |
| |
| /* Nonzero if X is a hard reg that can be used as an index |
| or if it is a pseudo reg. */ |
| #define REG_OK_FOR_INDEX_P(X) 0 |
| /* Nonzero if X is a hard reg that can be used as a base reg |
| or if it is a pseudo reg. */ |
| #define REG_OK_FOR_BASE_P(X) 1 |
| #define REG_OK_FOR_INDEX_P_STRICT(X) 0 |
| #define REG_OK_FOR_BASE_P_STRICT(X) REGNO_OK_FOR_BASE_P (REGNO (X)) |
| #define STRICT 0 |
| |
| #else |
| |
| /* Nonzero if X is a hard reg that can be used as an index. */ |
| #define REG_OK_FOR_INDEX_P(X) 0 |
| /* Nonzero if X is a hard reg that can be used as a base reg. */ |
| #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) |
| #define STRICT 1 |
| |
| #endif |
| |
| /* A C expression that defines the optional machine-dependent |
| constraint letters that can be used to segregate specific types of |
| operands, usually memory references, for the target machine. |
| Normally this macro will not be defined. If it is required for a |
| particular target machine, it should return 1 if VALUE corresponds |
| to the operand type represented by the constraint letter C. If C |
| is not defined as an extra constraint, the value returned should |
| be 0 regardless of VALUE. |
| |
| For example, on the ROMP, load instructions cannot have their |
| output in r0 if the memory reference contains a symbolic address. |
| Constraint letter `Q' is defined as representing a memory address |
| that does *not* contain a symbolic address. An alternative is |
| specified with a `Q' constraint on the input and `r' on the |
| output. The next alternative specifies `m' on the input and a |
| register class that does not include r0 on the output. */ |
| |
| #define EXTRA_CONSTRAINT(OP, C) \ |
| ((C) == 'Q' ? ep_memory_operand (OP, GET_MODE (OP), 0) \ |
| : (C) == 'R' ? special_symbolref_operand (OP, VOIDmode) \ |
| : (C) == 'S' ? (GET_CODE (OP) == SYMBOL_REF \ |
| && !SYMBOL_REF_ZDA_P (OP)) \ |
| : (C) == 'T' ? ep_memory_operand(OP,GET_MODE(OP),TRUE) \ |
| : (C) == 'U' ? ((GET_CODE (OP) == SYMBOL_REF \ |
| && SYMBOL_REF_ZDA_P (OP)) \ |
| || (GET_CODE (OP) == CONST \ |
| && GET_CODE (XEXP (OP, 0)) == PLUS \ |
| && GET_CODE (XEXP (XEXP (OP, 0), 0)) == SYMBOL_REF \ |
| && SYMBOL_REF_ZDA_P (XEXP (XEXP (OP, 0), 0)))) \ |
| : 0) |
| |
| /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression |
| that is a valid memory address for an instruction. |
| The MODE argument is the machine mode for the MEM expression |
| that wants to use this address. |
| |
| The other macros defined here are used only in GO_IF_LEGITIMATE_ADDRESS, |
| except for CONSTANT_ADDRESS_P which is actually |
| machine-independent. */ |
| |
| /* Accept either REG or SUBREG where a register is valid. */ |
| |
| #define RTX_OK_FOR_BASE_P(X) \ |
| ((REG_P (X) && REG_OK_FOR_BASE_P (X)) \ |
| || (GET_CODE (X) == SUBREG && REG_P (SUBREG_REG (X)) \ |
| && REG_OK_FOR_BASE_P (SUBREG_REG (X)))) |
| |
| #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ |
| do { \ |
| if (RTX_OK_FOR_BASE_P (X)) goto ADDR; \ |
| if (CONSTANT_ADDRESS_P (X) \ |
| && (MODE == QImode || INTVAL (X) % 2 == 0) \ |
| && (GET_MODE_SIZE (MODE) <= 4 || INTVAL (X) % 4 == 0)) \ |
| goto ADDR; \ |
| if (GET_CODE (X) == LO_SUM \ |
| && GET_CODE (XEXP (X, 0)) == REG \ |
| && REG_OK_FOR_BASE_P (XEXP (X, 0)) \ |
| && CONSTANT_P (XEXP (X, 1)) \ |
| && (GET_CODE (XEXP (X, 1)) != CONST_INT \ |
| || ((MODE == QImode || INTVAL (XEXP (X, 1)) % 2 == 0) \ |
| && CONST_OK_FOR_K (INTVAL (XEXP (X, 1))))) \ |
| && GET_MODE_SIZE (MODE) <= GET_MODE_SIZE (word_mode)) \ |
| goto ADDR; \ |
| if (special_symbolref_operand (X, MODE) \ |
| && (GET_MODE_SIZE (MODE) <= GET_MODE_SIZE (word_mode))) \ |
| goto ADDR; \ |
| if (GET_CODE (X) == PLUS \ |
| && CONSTANT_ADDRESS_P (XEXP (X, 1)) \ |
| && (MODE == QImode || INTVAL (XEXP (X, 1)) % 2 == 0) \ |
| && RTX_OK_FOR_BASE_P (XEXP (X, 0))) goto ADDR; \ |
| } while (0) |
| |
| |
| /* Go to LABEL if ADDR (a legitimate address expression) |
| has an effect that depends on the machine mode it is used for. */ |
| |
| #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) {} |
| |
| /* Nonzero if the constant value X is a legitimate general operand. |
| It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ |
| |
| #define LEGITIMATE_CONSTANT_P(X) \ |
| (GET_CODE (X) == CONST_DOUBLE \ |
| || !(GET_CODE (X) == CONST \ |
| && GET_CODE (XEXP (X, 0)) == PLUS \ |
| && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF \ |
| && GET_CODE (XEXP (XEXP (X, 0), 1)) == CONST_INT \ |
| && ! CONST_OK_FOR_K (INTVAL (XEXP (XEXP (X, 0), 1))))) |
| |
| /* Tell final.c how to eliminate redundant test instructions. */ |
| |
| /* Here we define machine-dependent flags and fields in cc_status |
| (see `conditions.h'). No extra ones are needed for the VAX. */ |
| |
| /* Store in cc_status the expressions |
| that the condition codes will describe |
| after execution of an instruction whose pattern is EXP. |
| Do not alter them if the instruction would not alter the cc's. */ |
| |
| #define CC_OVERFLOW_UNUSABLE 0x200 |
| #define CC_NO_CARRY CC_NO_OVERFLOW |
| #define NOTICE_UPDATE_CC(EXP, INSN) notice_update_cc(EXP, INSN) |
| |
| /* Nonzero if access to memory by bytes or half words is no faster |
| than accessing full words. */ |
| #define SLOW_BYTE_ACCESS 1 |
| |
| /* According expr.c, a value of around 6 should minimize code size, and |
| for the V850 series, that's our primary concern. */ |
| #define MOVE_RATIO 6 |
| |
| /* Indirect calls are expensive, never turn a direct call |
| into an indirect call. */ |
| #define NO_FUNCTION_CSE |
| |
| /* The four different data regions on the v850. */ |
| typedef enum |
| { |
| DATA_AREA_NORMAL, |
| DATA_AREA_SDA, |
| DATA_AREA_TDA, |
| DATA_AREA_ZDA |
| } v850_data_area; |
| |
| /* A list of names for sections other than the standard two, which are |
| `in_text' and `in_data'. You need not define this macro on a |
| system with no other sections (that GCC needs to use). */ |
| #undef EXTRA_SECTIONS |
| #define EXTRA_SECTIONS in_tdata, in_sdata, in_zdata, \ |
| in_rozdata, in_rosdata, in_sbss, in_zbss, in_zcommon, in_scommon |
| |
| /* One or more functions to be defined in `varasm.c'. These |
| functions should do jobs analogous to those of `text_section' and |
| `data_section', for your additional sections. Do not define this |
| macro if you do not define `EXTRA_SECTIONS'. */ |
| #undef EXTRA_SECTION_FUNCTIONS |
| |
| /* This could be done a lot more cleanly using ANSI C.... */ |
| #define EXTRA_SECTION_FUNCTIONS \ |
| void \ |
| sdata_section () \ |
| { \ |
| if (in_section != in_sdata) \ |
| { \ |
| fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \ |
| in_section = in_sdata; \ |
| } \ |
| } \ |
| \ |
| void \ |
| rosdata_section () \ |
| { \ |
| if (in_section != in_rosdata) \ |
| { \ |
| fprintf (asm_out_file, "%s\n", ROSDATA_SECTION_ASM_OP); \ |
| in_section = in_sdata; \ |
| } \ |
| } \ |
| \ |
| void \ |
| sbss_section () \ |
| { \ |
| if (in_section != in_sbss) \ |
| { \ |
| fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP); \ |
| in_section = in_sbss; \ |
| } \ |
| } \ |
| \ |
| void \ |
| tdata_section () \ |
| { \ |
| if (in_section != in_tdata) \ |
| { \ |
| fprintf (asm_out_file, "%s\n", TDATA_SECTION_ASM_OP); \ |
| in_section = in_tdata; \ |
| } \ |
| } \ |
| \ |
| void \ |
| zdata_section () \ |
| { \ |
| if (in_section != in_zdata) \ |
| { \ |
| fprintf (asm_out_file, "%s\n", ZDATA_SECTION_ASM_OP); \ |
| in_section = in_zdata; \ |
| } \ |
| } \ |
| \ |
| void \ |
| rozdata_section () \ |
| { \ |
| if (in_section != in_rozdata) \ |
| { \ |
| fprintf (asm_out_file, "%s\n", ROZDATA_SECTION_ASM_OP); \ |
| in_section = in_rozdata; \ |
| } \ |
| } \ |
| \ |
| void \ |
| zbss_section () \ |
| { \ |
| if (in_section != in_zbss) \ |
| { \ |
| fprintf (asm_out_file, "%s\n", ZBSS_SECTION_ASM_OP); \ |
| in_section = in_zbss; \ |
| } \ |
| } |
| |
| #define TEXT_SECTION_ASM_OP "\t.section .text" |
| #define DATA_SECTION_ASM_OP "\t.section .data" |
| #define BSS_SECTION_ASM_OP "\t.section .bss" |
| #define SDATA_SECTION_ASM_OP "\t.section .sdata,\"aw\"" |
| #define SBSS_SECTION_ASM_OP "\t.section .sbss,\"aw\"" |
| #define ZDATA_SECTION_ASM_OP "\t.section .zdata,\"aw\"" |
| #define ZBSS_SECTION_ASM_OP "\t.section .zbss,\"aw\"" |
| #define TDATA_SECTION_ASM_OP "\t.section .tdata,\"aw\"" |
| #define ROSDATA_SECTION_ASM_OP "\t.section .rosdata,\"a\"" |
| #define ROZDATA_SECTION_ASM_OP "\t.section .rozdata,\"a\"" |
| |
| #define SCOMMON_ASM_OP "\t.scomm\t" |
| #define ZCOMMON_ASM_OP "\t.zcomm\t" |
| #define TCOMMON_ASM_OP "\t.tcomm\t" |
| |
| #define ASM_COMMENT_START "#" |
| |
| /* Output to assembler file text saying following lines |
| may contain character constants, extra white space, comments, etc. */ |
| |
| #define ASM_APP_ON "#APP\n" |
| |
| /* Output to assembler file text saying following lines |
| no longer contain unusual constructs. */ |
| |
| #define ASM_APP_OFF "#NO_APP\n" |
| |
| #undef USER_LABEL_PREFIX |
| #define USER_LABEL_PREFIX "_" |
| |
| #define OUTPUT_ADDR_CONST_EXTRA(FILE, X, FAIL) \ |
| if (! v850_output_addr_const_extra (FILE, X)) \ |
| goto FAIL |
| |
| /* This says how to output the assembler to define a global |
| uninitialized but not common symbol. */ |
| |
| #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ |
| asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN)) |
| |
| #undef ASM_OUTPUT_ALIGNED_BSS |
| #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ |
| v850_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) |
| |
| /* This says how to output the assembler to define a global |
| uninitialized, common symbol. */ |
| #undef ASM_OUTPUT_ALIGNED_COMMON |
| #undef ASM_OUTPUT_COMMON |
| #define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \ |
| v850_output_common (FILE, DECL, NAME, SIZE, ALIGN) |
| |
| /* This says how to output the assembler to define a local |
| uninitialized symbol. */ |
| #undef ASM_OUTPUT_ALIGNED_LOCAL |
| #undef ASM_OUTPUT_LOCAL |
| #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ |
| v850_output_local (FILE, DECL, NAME, SIZE, ALIGN) |
| |
| /* Globalizing directive for a label. */ |
| #define GLOBAL_ASM_OP "\t.global " |
| |
| #define ASM_PN_FORMAT "%s___%lu" |
| |
| /* This is how we tell the assembler that two symbols have the same value. */ |
| |
| #define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \ |
| do { assemble_name(FILE, NAME1); \ |
| fputs(" = ", FILE); \ |
| assemble_name(FILE, NAME2); \ |
| fputc('\n', FILE); } while (0) |
| |
| |
| /* How to refer to registers in assembler output. |
| This sequence is indexed by compiler's hard-register-number (see above). */ |
| |
| #define REGISTER_NAMES \ |
| { "r0", "r1", "r2", "sp", "gp", "r5", "r6" , "r7", \ |
| "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ |
| "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ |
| "r24", "r25", "r26", "r27", "r28", "r29", "ep", "r31", \ |
| ".fp", ".ap"} |
| |
| #define ADDITIONAL_REGISTER_NAMES \ |
| { { "zero", 0 }, \ |
| { "hp", 2 }, \ |
| { "r3", 3 }, \ |
| { "r4", 4 }, \ |
| { "tp", 5 }, \ |
| { "fp", 29 }, \ |
| { "r30", 30 }, \ |
| { "lp", 31} } |
| |
| /* Print an instruction operand X on file FILE. |
| look in v850.c for details */ |
| |
| #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE) |
| |
| #define PRINT_OPERAND_PUNCT_VALID_P(CODE) \ |
| ((CODE) == '.') |
| |
| /* Print a memory operand whose address is X, on file FILE. |
| This uses a function in output-vax.c. */ |
| |
| #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR) |
| |
| #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) |
| #define ASM_OUTPUT_REG_POP(FILE,REGNO) |
| |
| /* This is how to output an element of a case-vector that is absolute. */ |
| |
| #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ |
| fprintf (FILE, "\t%s .L%d\n", \ |
| (TARGET_BIG_SWITCH ? ".long" : ".short"), VALUE) |
| |
| /* This is how to output an element of a case-vector that is relative. */ |
| |
| #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ |
| fprintf (FILE, "\t%s %s.L%d-.L%d%s\n", \ |
| (TARGET_BIG_SWITCH ? ".long" : ".short"), \ |
| (! TARGET_BIG_SWITCH && TARGET_V850E ? "(" : ""), \ |
| VALUE, REL, \ |
| (! TARGET_BIG_SWITCH && TARGET_V850E ? ")>>1" : "")) |
| |
| #define ASM_OUTPUT_ALIGN(FILE, LOG) \ |
| if ((LOG) != 0) \ |
| fprintf (FILE, "\t.align %d\n", (LOG)) |
| |
| /* We don't have to worry about dbx compatibility for the v850. */ |
| #define DEFAULT_GDB_EXTENSIONS 1 |
| |
| /* Use stabs debugging info by default. */ |
| #undef PREFERRED_DEBUGGING_TYPE |
| #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG |
| |
| /* Specify the machine mode that this machine uses |
| for the index in the tablejump instruction. */ |
| #define CASE_VECTOR_MODE (TARGET_BIG_SWITCH ? SImode : HImode) |
| |
| /* Define as C expression which evaluates to nonzero if the tablejump |
| instruction expects the table to contain offsets from the address of the |
| table. |
| Do not define this if the table should contain absolute addresses. */ |
| #define CASE_VECTOR_PC_RELATIVE 1 |
| |
| /* The switch instruction requires that the jump table immediately follow |
| it. */ |
| #define JUMP_TABLES_IN_TEXT_SECTION 1 |
| |
| /* svr4.h defines this assuming that 4 byte alignment is required. */ |
| #undef ASM_OUTPUT_BEFORE_CASE_LABEL |
| #define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \ |
| ASM_OUTPUT_ALIGN ((FILE), (TARGET_BIG_SWITCH ? 2 : 1)); |
| |
| #define WORD_REGISTER_OPERATIONS |
| |
| /* Byte and short loads sign extend the value to a word. */ |
| #define LOAD_EXTEND_OP(MODE) SIGN_EXTEND |
| |
| /* This flag, if defined, says the same insns that convert to a signed fixnum |
| also convert validly to an unsigned one. */ |
| #define FIXUNS_TRUNC_LIKE_FIX_TRUNC |
| |
| /* Max number of bytes we can move from memory to memory |
| in one reasonably fast instruction. */ |
| #define MOVE_MAX 4 |
| |
| /* Define if shifts truncate the shift count |
| which implies one can omit a sign-extension or zero-extension |
| of a shift count. */ |
| #define SHIFT_COUNT_TRUNCATED 1 |
| |
| /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits |
| is done just by pretending it is already truncated. */ |
| #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 |
| |
| /* Specify the machine mode that pointers have. |
| After generation of rtl, the compiler makes no further distinction |
| between pointers and any other objects of this machine mode. */ |
| #define Pmode SImode |
| |
| /* A function address in a call instruction |
| is a byte address (for indexing purposes) |
| so give the MEM rtx a byte's mode. */ |
| #define FUNCTION_MODE QImode |
| |
| /* Tell compiler we want to support GHS pragmas */ |
| #define REGISTER_TARGET_PRAGMAS() do { \ |
| c_register_pragma ("ghs", "interrupt", ghs_pragma_interrupt); \ |
| c_register_pragma ("ghs", "section", ghs_pragma_section); \ |
| c_register_pragma ("ghs", "starttda", ghs_pragma_starttda); \ |
| c_register_pragma ("ghs", "startsda", ghs_pragma_startsda); \ |
| c_register_pragma ("ghs", "startzda", ghs_pragma_startzda); \ |
| c_register_pragma ("ghs", "endtda", ghs_pragma_endtda); \ |
| c_register_pragma ("ghs", "endsda", ghs_pragma_endsda); \ |
| c_register_pragma ("ghs", "endzda", ghs_pragma_endzda); \ |
| } while (0) |
| |
| /* enum GHS_SECTION_KIND is an enumeration of the kinds of sections that |
| can appear in the "ghs section" pragma. These names are used to index |
| into the GHS_default_section_names[] and GHS_current_section_names[] |
| that are defined in v850.c, and so the ordering of each must remain |
| consistent. |
| |
| These arrays give the default and current names for each kind of |
| section defined by the GHS pragmas. The current names can be changed |
| by the "ghs section" pragma. If the current names are null, use |
| the default names. Note that the two arrays have different types. |
| |
| For the *normal* section kinds (like .data, .text, etc.) we do not |
| want to explicitly force the name of these sections, but would rather |
| let the linker (or at least the back end) choose the name of the |
| section, UNLESS the user has force a specific name for these section |
| kinds. To accomplish this set the name in ghs_default_section_names |
| to null. */ |
| |
| enum GHS_section_kind |
| { |
| GHS_SECTION_KIND_DEFAULT, |
| |
| GHS_SECTION_KIND_TEXT, |
| GHS_SECTION_KIND_DATA, |
| GHS_SECTION_KIND_RODATA, |
| GHS_SECTION_KIND_BSS, |
| GHS_SECTION_KIND_SDATA, |
| GHS_SECTION_KIND_ROSDATA, |
| GHS_SECTION_KIND_TDATA, |
| GHS_SECTION_KIND_ZDATA, |
| GHS_SECTION_KIND_ROZDATA, |
| |
| COUNT_OF_GHS_SECTION_KINDS /* must be last */ |
| }; |
| |
| /* The following code is for handling pragmas supported by the |
| v850 compiler produced by Green Hills Software. This is at |
| the specific request of a customer. */ |
| |
| typedef struct data_area_stack_element |
| { |
| struct data_area_stack_element * prev; |
| v850_data_area data_area; /* Current default data area. */ |
| } data_area_stack_element; |
| |
| /* Track the current data area set by the |
| data area pragma (which can be nested). */ |
| extern data_area_stack_element * data_area_stack; |
| |
| /* Names of the various data areas used on the v850. */ |
| extern union tree_node * GHS_default_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; |
| extern union tree_node * GHS_current_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; |
| |
| /* The assembler op to start the file. */ |
| |
| #define FILE_ASM_OP "\t.file\n" |
| |
| /* Enable the register move pass to improve code. */ |
| #define ENABLE_REGMOVE_PASS |
| |
| |
| /* Implement ZDA, TDA, and SDA */ |
| |
| #define EP_REGNUM 30 /* ep register number */ |
| |
| #define SYMBOL_FLAG_ZDA (SYMBOL_FLAG_MACH_DEP << 0) |
| #define SYMBOL_FLAG_TDA (SYMBOL_FLAG_MACH_DEP << 1) |
| #define SYMBOL_FLAG_SDA (SYMBOL_FLAG_MACH_DEP << 2) |
| #define SYMBOL_REF_ZDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_ZDA) != 0) |
| #define SYMBOL_REF_TDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_TDA) != 0) |
| #define SYMBOL_REF_SDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_SDA) != 0) |
| |
| /* Define this if you have defined special-purpose predicates in the |
| file `MACHINE.c'. This macro is called within an initializer of an |
| array of structures. The first field in the structure is the name |
| of a predicate and the second field is an array of rtl codes. For |
| each predicate, list all rtl codes that can be in expressions |
| matched by the predicate. The list should have a trailing comma. */ |
| |
| #define PREDICATE_CODES \ |
| { "reg_or_0_operand", { REG, SUBREG, CONST_INT, CONST_DOUBLE }}, \ |
| { "reg_or_int5_operand", { REG, SUBREG, CONST_INT }}, \ |
| { "reg_or_int9_operand", { REG, SUBREG, CONST_INT }}, \ |
| { "reg_or_const_operand", { REG, CONST_INT }}, \ |
| { "call_address_operand", { REG, SYMBOL_REF }}, \ |
| { "movsi_source_operand", { LABEL_REF, SYMBOL_REF, CONST_INT, \ |
| CONST_DOUBLE, CONST, HIGH, MEM, \ |
| REG, SUBREG }}, \ |
| { "special_symbolref_operand", { SYMBOL_REF }}, \ |
| { "power_of_two_operand", { CONST_INT }}, \ |
| { "pattern_is_ok_for_prologue", { PARALLEL }}, \ |
| { "pattern_is_ok_for_epilogue", { PARALLEL }}, \ |
| { "register_is_ok_for_epilogue",{ REG }}, \ |
| { "pattern_is_ok_for_dispose", { PARALLEL }}, \ |
| { "pattern_is_ok_for_prepare", { PARALLEL }}, \ |
| { "register_is_ok_for_dispose", { REG }}, \ |
| { "not_power_of_two_operand", { CONST_INT }}, |
| |
| #endif /* ! GCC_V850_H */ |