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Diffstat (limited to 'gcc/config/vax/vax.h')
| -rw-r--r-- | gcc/config/vax/vax.h | 751 |
1 files changed, 751 insertions, 0 deletions
diff --git a/gcc/config/vax/vax.h b/gcc/config/vax/vax.h new file mode 100644 index 000000000..272dfbbc3 --- /dev/null +++ b/gcc/config/vax/vax.h @@ -0,0 +1,751 @@ +/* Definitions of target machine for GNU compiler. VAX version. + Copyright (C) 1987, 1988, 1991, 1993, 1994, 1995, 1996, 1997, 1998, + 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 + Free Software Foundation, Inc. + +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 3, 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 COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + + +/* Target CPU builtins. */ +#define TARGET_CPU_CPP_BUILTINS() \ + do \ + { \ + builtin_define ("__vax__"); \ + builtin_assert ("cpu=vax"); \ + builtin_assert ("machine=vax"); \ + if (TARGET_G_FLOAT) \ + { \ + builtin_define ("__GFLOAT"); \ + builtin_define ("__GFLOAT__"); \ + } \ + } \ + while (0) + +#define VMS_TARGET 0 + +/* Use -J option for long branch support with Unix assembler. */ + +#define ASM_SPEC "-J" + +/* Choose proper libraries depending on float format. + Note that there are no profiling libraries for g-format. + Also use -lg for the sake of dbx. */ + +#define LIB_SPEC "%{g:-lg}\ + %{mg:%{lm:-lmg} -lcg \ + %{p:%eprofiling not supported with -mg\n}\ + %{pg:%eprofiling not supported with -mg\n}}\ + %{!mg:%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" + +/* Print subsidiary information on the compiler version in use. */ + +#ifndef TARGET_NAME /* A more specific value might be supplied via -D. */ +#define TARGET_NAME "vax" +#endif +#define TARGET_VERSION fprintf (stderr, " (%s)", TARGET_NAME) + +/* Run-time compilation parameters selecting different hardware subsets. */ + +/* Nonzero if ELF. Redefined by vax/elf.h. */ +#define TARGET_ELF 0 + +/* Use BSD names for udiv and umod libgcc calls. */ +#define TARGET_BSD_DIVMOD 1 + +/* Default target_flags if no switches specified. */ + +#ifndef TARGET_DEFAULT +#define TARGET_DEFAULT (MASK_UNIX_ASM) +#endif + + +/* 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 VAX. */ +#define BITS_BIG_ENDIAN 0 + +/* Define this if most significant byte of a word is the lowest numbered. */ +/* That is not true on the VAX. */ +#define BYTES_BIG_ENDIAN 0 + +/* Define this if most significant word of a multiword number is the lowest + numbered. */ +/* This is not true on the VAX. */ +#define WORDS_BIG_ENDIAN 0 + +/* Width of a word, in units (bytes). */ +#define UNITS_PER_WORD 4 + +/* Allocation boundary (in *bits*) for storing arguments in argument list. */ +#define PARM_BOUNDARY 32 + +/* Allocation boundary (in *bits*) for the code of a function. */ +#define FUNCTION_BOUNDARY 16 + +/* Alignment of field after `int : 0' in a structure. */ +#define EMPTY_FIELD_BOUNDARY (TARGET_VAXC_ALIGNMENT ? 8 : 32) + +/* Every structure's size must be a multiple of this. */ +#define STRUCTURE_SIZE_BOUNDARY 8 + +/* A bit-field declared as `int' forces `int' alignment for the struct. */ +#define PCC_BITFIELD_TYPE_MATTERS (! TARGET_VAXC_ALIGNMENT) + +/* No data type wants to be aligned rounder than this. */ +#define BIGGEST_ALIGNMENT 32 + +/* No structure field wants to be aligned rounder than this. */ +#define BIGGEST_FIELD_ALIGNMENT (TARGET_VAXC_ALIGNMENT ? 8 : 32) + +/* Set this nonzero if move instructions will actually fail to work + when given unaligned data. */ +#define STRICT_ALIGNMENT 0 + +/* Let's keep the stack somewhat aligned. */ +#define STACK_BOUNDARY 32 + +/* The table of an ADDR_DIFF_VEC must be contiguous with the case + opcode, it is part of the case instruction. */ +#define ADDR_VEC_ALIGN(ADDR_VEC) 0 + +/* 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 16 + +/* 1 for registers that have pervasive standard uses + and are not available for the register allocator. + On the VAX, these are the AP, FP, SP and PC. */ +#define FIXED_REGISTERS {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 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, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 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. + On the VAX, all registers are one word long. */ +#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. + On the VAX, all registers can hold all modes. */ +#define HARD_REGNO_MODE_OK(REGNO, MODE) 1 + +/* 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) 1 + +/* Specify the registers used for certain standard purposes. + The values of these macros are register numbers. */ + +/* VAX pc is overloaded on a register. */ +#define PC_REGNUM VAX_PC_REGNUM + +/* Register to use for pushing function arguments. */ +#define STACK_POINTER_REGNUM VAX_SP_REGNUM + +/* Base register for access to local variables of the function. */ +#define FRAME_POINTER_REGNUM VAX_FP_REGNUM + +/* Offset from the frame pointer register value to the top of stack. */ +#define FRAME_POINTER_CFA_OFFSET(FNDECL) 0 + +/* Base register for access to arguments of the function. */ +#define ARG_POINTER_REGNUM VAX_AP_REGNUM + +/* Register in which static-chain is passed to a function. */ +#define STATIC_CHAIN_REGNUM 0 + +/* Register in which address to store a structure value + is passed to a function. */ +#define VAX_STRUCT_VALUE_REGNUM 1 + +/* 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. */ + +/* The VAX has only one kind of registers, so NO_REGS and ALL_REGS + are the only classes. */ + +enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES }; + +#define N_REG_CLASSES (int) LIM_REG_CLASSES + +/* Since GENERAL_REGS is the same class as ALL_REGS, + don't give it a different class number; just make it an alias. */ + +#define GENERAL_REGS ALL_REGS + +/* Give names of register classes as strings for dump file. */ + +#define REG_CLASS_NAMES \ + { "NO_REGS", "ALL_REGS" } + +/* The following macro defines cover classes for Integrated Register + Allocator. Cover classes is a set of non-intersected register + classes covering all hard registers used for register allocation + purpose. Any move between two registers of a cover class should be + cheaper than load or store of the registers. The macro value is + array of register classes with LIM_REG_CLASSES used as the end + marker. */ +#define IRA_COVER_CLASSES { ALL_REGS, LIM_REG_CLASSES } + +/* 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) + +/* 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 {{0}, {0xffff}} + +/* 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) ALL_REGS + +/* The class value for index registers, and the one for base regs. */ + +#define INDEX_REG_CLASS ALL_REGS +#define BASE_REG_CLASS ALL_REGS + +/* Return the maximum number of consecutive registers + needed to represent mode MODE in a register of class CLASS. */ +/* On the VAX, this is always the size of MODE in words, + since all registers are the same size. */ +#define CLASS_MAX_NREGS(CLASS, MODE) \ + ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) + +/* 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 to nonzero 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 1 + +/* 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 + +/* Given an rtx for the address of a frame, + return an rtx for the address of the word in the frame + that holds the dynamic chain--the previous frame's address. */ +#define DYNAMIC_CHAIN_ADDRESS(FRAME) plus_constant ((FRAME), 12) + +/* If we generate an insn to push BYTES bytes, + this says how many the stack pointer really advances by. + On the VAX, -(sp) pushes only the bytes of the operands. */ +#define PUSH_ROUNDING(BYTES) (BYTES) + +/* Offset of first parameter from the argument pointer register value. */ +#define FIRST_PARM_OFFSET(FNDECL) 4 + +/* 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. */ + +/* On the VAX the return value is in R0 regardless. */ + +#define FUNCTION_VALUE(VALTYPE, FUNC) \ + gen_rtx_REG (TYPE_MODE (VALTYPE), 0) + +/* Define how to find the value returned by a library function + assuming the value has mode MODE. */ + +/* On the VAX the return value is in R0 regardless. */ + +#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, 0) + +/* Define this if PCC uses the nonreentrant convention for returning + structure and union values. */ + +#define PCC_STATIC_STRUCT_RETURN + +/* 1 if N is a possible register number for a function value. + On the VAX, R0 is the only register thus used. */ + +#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0) + +/* 1 if N is a possible register number for function argument passing. + On the VAX, no registers are used in this way. */ + +#define FUNCTION_ARG_REGNO_P(N) 0 + +/* 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. + + On the VAX, this is a single integer, which is a number of bytes + of arguments scanned so far. */ + +#define CUMULATIVE_ARGS int + +/* 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. + + On the VAX, the offset starts at 0. */ + +#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ + ((CUM) = 0) + +/* Output assembler code to FILE to increment profiler label # LABELNO + for profiling a function entry. */ + +#define VAX_FUNCTION_PROFILER_NAME "mcount" +#define FUNCTION_PROFILER(FILE, LABELNO) \ + do \ + { \ + char label[256]; \ + ASM_GENERATE_INTERNAL_LABEL (label, "LP", (LABELNO)); \ + fprintf (FILE, "\tmovab "); \ + assemble_name (FILE, label); \ + asm_fprintf (FILE, ",%Rr0\n\tjsb %s\n", \ + VAX_FUNCTION_PROFILER_NAME); \ + } \ + while (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 + +/* Store in the variable DEPTH the initial difference between the + frame pointer reg contents and the stack pointer reg contents, + as of the start of the function body. This depends on the layout + of the fixed parts of the stack frame and on how registers are saved. + + On the VAX, FRAME_POINTER_REQUIRED is always 1, so the definition of this + macro doesn't matter. But it must be defined. */ + +#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = 0; + +/* Length in units of the trampoline for entering a nested function. */ + +#define TRAMPOLINE_SIZE 15 + +/* Byte offset of return address in a stack frame. The "saved PC" field + is in element [4] when treating the frame as an array of longwords. */ + +#define RETURN_ADDRESS_OFFSET (4 * UNITS_PER_WORD) /* 16 */ + +/* A C expression whose value is RTL representing the value of the return + address for the frame COUNT steps up from the current frame. + FRAMEADDR is already the frame pointer of the COUNT frame, so we + can ignore COUNT. */ + +#define RETURN_ADDR_RTX(COUNT, FRAME) \ + ((COUNT == 0) \ + ? gen_rtx_MEM (Pmode, plus_constant (FRAME, RETURN_ADDRESS_OFFSET)) \ + : (rtx) 0) + + +/* Addressing modes, and classification of registers for them. */ + +#define HAVE_POST_INCREMENT 1 + +#define HAVE_PRE_DECREMENT 1 + +/* 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_INDEX_P(regno) \ + ((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0) +#define REGNO_OK_FOR_BASE_P(regno) \ + ((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0) + +/* Maximum number of registers that can appear in a valid memory address. */ + +#define MAX_REGS_PER_ADDRESS 2 + +/* 1 if X is an rtx for a constant that is a valid address. */ + +#define CONSTANT_ADDRESS_P(X) legitimate_constant_address_p (X) + +/* 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) legitimate_constant_p (X) + +/* 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) 1 + +/* 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 + +#else + +/* Nonzero if X is a hard reg that can be used as an index. */ +#define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X)) + +/* 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)) + +#endif + +/* 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) \ + { if (vax_mode_dependent_address_p (ADDR)) goto LABEL; } + +/* Specify the machine mode that this machine uses + for the index in the tablejump instruction. */ +#define CASE_VECTOR_MODE 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 + +/* Indicate that jump tables go in the text section. This is + necessary when compiling PIC code. */ +#define JUMP_TABLES_IN_TEXT_SECTION 1 + +/* Define this as 1 if `char' should by default be signed; else as 0. */ +#define DEFAULT_SIGNED_CHAR 1 + +/* 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 8 + +/* If a memory-to-memory move would take MOVE_RATIO or more simple + move-instruction pairs, we will do a movmem or libcall instead. */ +#define MOVE_RATIO(speed) ((speed) ? 6 : 3) +#define CLEAR_RATIO(speed) ((speed) ? 6 : 2) + +/* Nonzero if access to memory by bytes is slow and undesirable. */ +#define SLOW_BYTE_ACCESS 0 + +/* 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 */ + +/* 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 + +/* Specify the cost of a branch insn; roughly the number of extra insns that + should be added to avoid a branch. + + Branches are extremely cheap on the VAX while the shift insns often + used to replace branches can be expensive. */ + +#define BRANCH_COST(speed_p, predictable_p) 0 + +/* 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 NOTICE_UPDATE_CC(EXP, INSN) \ + vax_notice_update_cc ((EXP), (INSN)) + +#define OUTPUT_JUMP(NORMAL, FLOAT, NO_OV) \ + { if (cc_status.flags & CC_NO_OVERFLOW) \ + return NO_OV; \ + return NORMAL; \ + } + +/* Control the assembler format that we output. */ + +/* A C string constant describing how to begin a comment in the target + assembler language. The compiler assumes that the comment will end at + the end of the line. */ + +#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" + +/* Output before read-only data. */ + +#define TEXT_SECTION_ASM_OP "\t.text" + +/* Output before writable data. */ + +#define DATA_SECTION_ASM_OP "\t.data" + +/* How to refer to registers in assembler output. + This sequence is indexed by compiler's hard-register-number (see above). + The register names will be prefixed by REGISTER_PREFIX, if any. */ + +#define REGISTER_PREFIX "" +#define REGISTER_NAMES \ + { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ + "r8", "r9", "r10", "r11", "ap", "fp", "sp", "pc", } + +/* This is BSD, so it wants DBX format. */ + +#define DBX_DEBUGGING_INFO 1 + +/* Do not break .stabs pseudos into continuations. */ + +#define DBX_CONTIN_LENGTH 0 + +/* This is the char to use for continuation (in case we need to turn + continuation back on). */ + +#define DBX_CONTIN_CHAR '?' + +/* Don't use the `xsfoo;' construct in DBX output; this system + doesn't support it. */ + +#define DBX_NO_XREFS + +/* Output the .stabs for a C `static' variable in the data section. */ +#define DBX_STATIC_STAB_DATA_SECTION + +/* VAX specific: which type character is used for type double? */ + +#define ASM_DOUBLE_CHAR (TARGET_G_FLOAT ? 'g' : 'd') + +/* This is how to output a command to make the user-level label named NAME + defined for reference from other files. */ + +/* Globalizing directive for a label. */ +#define GLOBAL_ASM_OP ".globl " + +/* The prefix to add to user-visible assembler symbols. */ + +#define USER_LABEL_PREFIX "_" + +/* This is how to store into the string LABEL + the symbol_ref name of an internal numbered label where + PREFIX is the class of label and NUM is the number within the class. + This is suitable for output with `assemble_name'. */ + +#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ + sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM)) + +/* This is how to output an insn to push a register on the stack. + It need not be very fast code. */ + +#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ + fprintf (FILE, "\tpushl %s\n", reg_names[REGNO]) + +/* This is how to output an insn to pop a register from the stack. + It need not be very fast code. */ + +#define ASM_OUTPUT_REG_POP(FILE,REGNO) \ + fprintf (FILE, "\tmovl (%s)+,%s\n", reg_names[STACK_POINTER_REGNUM], \ + reg_names[REGNO]) + +/* This is how to output an element of a case-vector that is absolute. + (The VAX does not use such vectors, + but we must define this macro anyway.) */ + +#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ + do \ + { \ + char label[256]; \ + ASM_GENERATE_INTERNAL_LABEL (label, "L", (VALUE));\ + fprintf (FILE, "\t.long "); \ + assemble_name (FILE, label); \ + fprintf (FILE, "\n"); \ + } \ + while (0) + +/* This is how to output an element of a case-vector that is relative. */ + +#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ + do \ + { \ + char label[256]; \ + ASM_GENERATE_INTERNAL_LABEL (label, "L", (VALUE)); \ + fprintf (FILE, "\t.word "); \ + assemble_name (FILE, label); \ + ASM_GENERATE_INTERNAL_LABEL (label, "L", (REL)); \ + fprintf (FILE, "-"); \ + assemble_name (FILE, label); \ + fprintf (FILE, "\n"); \ + } \ + while (0) + +/* This is how to output an assembler line + that says to advance the location counter + to a multiple of 2**LOG bytes. */ + +#define ASM_OUTPUT_ALIGN(FILE,LOG) \ + fprintf (FILE, "\t.align %d\n", (LOG)) + +/* This is how to output an assembler line + that says to advance the location counter by SIZE bytes. */ + +#define ASM_OUTPUT_SKIP(FILE,SIZE) \ + fprintf (FILE, "\t.space %u\n", (int)(SIZE)) + +/* This says how to output an assembler line + to define a global common symbol. */ + +#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ + ( fputs (".comm ", (FILE)), \ + assemble_name ((FILE), (NAME)), \ + fprintf ((FILE), ",%u\n", (int)(ROUNDED))) + +/* This says how to output an assembler line + to define a local common symbol. */ + +#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ + ( fputs (".lcomm ", (FILE)), \ + assemble_name ((FILE), (NAME)), \ + fprintf ((FILE), ",%u\n", (int)(ROUNDED))) + +/* Print an instruction operand X on file FILE. + CODE is the code from the %-spec that requested printing this operand; + if `%z3' was used to print operand 3, then CODE is 'z'. + +VAX operand formatting codes: + + letter print + c direct branch condition + C reverse branch condition + D 64-bit immediate operand + B the low 8 bits of the complement of a constant operand + H the low 16 bits of the complement of a constant operand + M a mask for the N highest bits of a word + N the complement of a constant integer operand + P constant operand plus 1 + R 32 - constant operand + b the low 8 bits of a negated constant operand + h the low 16 bits of a negated constant operand + # 'd' or 'g' depending on whether dfloat or gfloat is used + | register prefix */ + +/* The purpose of D is to get around a quirk or bug in VAX assembler + whereby -1 in a 64-bit immediate operand means 0x00000000ffffffff, + which is not a 64-bit minus one. As a workaround, we output negative + values in hex. */ +#if HOST_BITS_PER_WIDE_INT == 64 +# define NEG_HWI_PRINT_HEX16 HOST_WIDE_INT_PRINT_HEX +#else +# define NEG_HWI_PRINT_HEX16 "0xffffffff%08lx" +#endif + +#define PRINT_OPERAND_PUNCT_VALID_P(CODE) \ + ((CODE) == '#' || (CODE) == '|') + +#define PRINT_OPERAND(FILE, X, CODE) \ + print_operand (FILE, X, 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) + +/* This is a blatent lie. However, it's good enough, since we don't + actually have any code whatsoever for which this isn't overridden + by the proper FDE definition. */ +#define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, PC_REGNUM) + |