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Diffstat (limited to 'gcc/config/vax/vax.h')
| -rwxr-xr-x | gcc/config/vax/vax.h | 1317 |
1 files changed, 0 insertions, 1317 deletions
diff --git a/gcc/config/vax/vax.h b/gcc/config/vax/vax.h deleted file mode 100755 index ad8fb7c..0000000 --- a/gcc/config/vax/vax.h +++ /dev/null @@ -1,1317 +0,0 @@ -/* Definitions of target machine for GNU compiler. Vax version. - Copyright (C) 1987, 88, 91, 93-96, 1997 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - - -/* Names to predefine in the preprocessor for this target machine. */ - -#define CPP_PREDEFINES "-Dvax -D__vax__ -Dunix -Asystem(unix) -Asystem(bsd) -Acpu(vax) -Amachine(vax)" - -/* If using g-format floating point, alter math.h. */ - -#define CPP_SPEC "%{mg:-DGFLOAT}" - -/* 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. */ - -extern int target_flags; - -/* Macros used in the machine description to test the flags. */ - -/* Nonzero if compiling code that Unix assembler can assemble. */ -#define TARGET_UNIX_ASM (target_flags & 1) - -/* Nonzero if compiling with VAX-11 "C" style structure alignment */ -#define TARGET_VAXC_ALIGNMENT (target_flags & 2) - -/* Nonzero if compiling with `G'-format floating point */ -#define TARGET_G_FLOAT (target_flags & 4) - -/* 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 \ - { {"unix", 1}, \ - {"gnu", -1}, \ - {"vaxc-alignment", 2}, \ - {"g", 4}, \ - {"g-float", 4}, \ - {"d", -4}, \ - {"d-float", -4}, \ - { "", TARGET_DEFAULT}} - -/* Default target_flags if no switches specified. */ - -#ifndef TARGET_DEFAULT -#define TARGET_DEFAULT 1 -#endif - -/* Target machine storage layout */ - -/* Define for software floating point emulation of VAX format - when cross compiling from a non-VAX host. */ -/* #define REAL_ARITHMETIC */ - -/* 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 - -/* Number of bits in an addressable storage unit */ -#define BITS_PER_UNIT 8 - -/* Width in bits of a "word", which is the contents of a machine register. - Note that this is not necessarily the width of data type `int'; - if using 16-bit ints on a 68000, this would still be 32. - But on a machine with 16-bit registers, this would be 16. */ -#define BITS_PER_WORD 32 - -/* Width of a word, in units (bytes). */ -#define UNITS_PER_WORD 4 - -/* Width in bits of a pointer. - See also the macro `Pmode' defined below. */ -#define POINTER_SIZE 32 - -/* 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 bitfield 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 15 - -/* Register to use for pushing function arguments. */ -#define STACK_POINTER_REGNUM 14 - -/* Base register for access to local variables of the function. */ -#define FRAME_POINTER_REGNUM 13 - -/* 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 1 - -/* Base register for access to arguments of the function. */ -#define ARG_POINTER_REGNUM 12 - -/* 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 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" } - -/* 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 - -/* Get reg_class from a letter such as appears in the machine description. */ - -#define REG_CLASS_FROM_LETTER(C) NO_REGS - -/* The letters I, J, K, L and M 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. - - `I' is the constant zero. */ - -#define CONST_OK_FOR_LETTER_P(VALUE, C) \ - ((C) == 'I' ? (VALUE) == 0 \ - : 0) - -/* Similar, but for floating constants, and defining letters G and H. - Here VALUE is the CONST_DOUBLE rtx itself. - - `G' is a floating-point zero. */ - -#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \ - ((C) == 'G' ? ((VALUE) == CONST0_RTX (DFmode) \ - || (VALUE) == CONST0_RTX (SFmode)) \ - : 0) - -/* Optional extra constraints for this machine. - - For the VAX, `Q' means that OP is a MEM that does not have a mode-dependent - address. */ - -#define EXTRA_CONSTRAINT(OP, C) \ - ((C) == 'Q' \ - ? GET_CODE (OP) == MEM && ! mode_dependent_address_p (XEXP (OP, 0)) \ - : 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. */ -/* 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 if longjmp restores from saved registers - rather than from what setjmp saved. */ -#define LONGJMP_RESTORE_FROM_STACK - -/* 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 - -/* 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) \ -gen_rtx (PLUS, Pmode, frame, GEN_INT (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 - -/* 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. - - On the Vax, the RET insn always pops all the args for any function. */ - -#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) (SIZE) - -/* 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) \ - ((CUM) = 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) += ((MODE) != BLKmode \ - ? (GET_MODE_SIZE (MODE) + 3) & ~3 \ - : (int_size_in_bytes (TYPE) + 3) & ~3)) - -/* 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). */ - -/* On the vax all args are pushed. */ - -#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) 0 - -/* This macro generates the assembly code for function entry. - FILE is a stdio stream to output the code to. - SIZE is an int: how many units of temporary storage to allocate, - adjusted by STARTING_FRAME_OFFSET to accommodate vms.h. - Refer to the array `regs_ever_live' to determine which registers - to save; `regs_ever_live[I]' is nonzero if register number I - is ever used in the function. This macro is responsible for - knowing which registers should not be saved even if used. */ - -#define FUNCTION_PROLOGUE(FILE, SIZE) \ -{ register int regno; \ - register int mask = 0; \ - register int size = SIZE - STARTING_FRAME_OFFSET; \ - extern char call_used_regs[]; \ - for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) \ - if (regs_ever_live[regno] && !call_used_regs[regno]) \ - mask |= 1 << regno; \ - fprintf (FILE, "\t.word 0x%x\n", mask); \ - MAYBE_VMS_FUNCTION_PROLOGUE(FILE) \ - if ((size) >= 64) fprintf (FILE, "\tmovab %d(sp),sp\n", -size);\ - else if (size) fprintf (FILE, "\tsubl2 $%d,sp\n", (size)); } - -/* vms.h redefines this. */ -#define MAYBE_VMS_FUNCTION_PROLOGUE(FILE) - -/* Output assembler code to FILE to increment profiler label # LABELNO - for profiling a function entry. */ - -#define FUNCTION_PROFILER(FILE, LABELNO) \ - fprintf (FILE, "\tmovab LP%d,r0\n\tjsb mcount\n", (LABELNO)); - -/* Output assembler code to FILE to initialize this source file's - basic block profiling info, if that has not already been done. */ - -#define FUNCTION_BLOCK_PROFILER(FILE, LABELNO) \ - fprintf (FILE, "\ttstl LPBX0\n\tjneq LPI%d\n\tpushal LPBX0\n\tcalls $1,__bb_init_func\nLPI%d:\n", \ - LABELNO, LABELNO); - -/* Output assembler code to FILE to increment the entry-count for - the BLOCKNO'th basic block in this source file. This is a real pain in the - sphincter on a VAX, since we do not want to change any of the bits in the - processor status word. The way it is done here, it is pushed onto the stack - before any flags have changed, and then the stack is fixed up to account for - the fact that the instruction to restore the flags only reads a word. - It may seem a bit clumsy, but at least it works. -*/ - -#define BLOCK_PROFILER(FILE, BLOCKNO) \ - fprintf (FILE, "\tmovpsl -(sp)\n\tmovw (sp),2(sp)\n\taddl2 $2,sp\n\taddl2 $1,LPBX2+%d\n\tbicpsw $255\n\tbispsw (sp)+\n", \ - 4 * BLOCKNO) - -/* 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 - -/* This macro generates the assembly code for function exit, - on machines that need it. If FUNCTION_EPILOGUE is not defined - then individual return instructions are generated for each - return statement. Args are same as for FUNCTION_PROLOGUE. */ - -/* #define FUNCTION_EPILOGUE(FILE, SIZE) */ - -/* 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; - -/* Output assembler code for a block containing the constant parts - of a trampoline, leaving space for the variable parts. */ - -/* On the vax, the trampoline contains an entry mask and two instructions: - .word NN - movl $STATIC,r0 (store the functions static chain) - jmp *$FUNCTION (jump to function code at address FUNCTION) */ - -#define TRAMPOLINE_TEMPLATE(FILE) \ -{ \ - ASM_OUTPUT_SHORT (FILE, const0_rtx); \ - ASM_OUTPUT_SHORT (FILE, GEN_INT (0x8fd0)); \ - ASM_OUTPUT_INT (FILE, const0_rtx); \ - ASM_OUTPUT_BYTE (FILE, 0x50+STATIC_CHAIN_REGNUM); \ - ASM_OUTPUT_SHORT (FILE, GEN_INT (0x9f17)); \ - ASM_OUTPUT_INT (FILE, const0_rtx); \ -} - -/* Length in units of the trampoline for entering a nested function. */ - -#define TRAMPOLINE_SIZE 15 - -/* 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. */ - -/* We copy the register-mask from the function's pure code - to the start of the trampoline. */ -#define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ -{ \ - emit_insn (gen_rtx (ASM_INPUT, VOIDmode, \ - "movpsl -(sp)\n\tpushal 1(pc)\n\trei")); \ - emit_move_insn (gen_rtx (MEM, HImode, TRAMP), \ - gen_rtx (MEM, HImode, FNADDR)); \ - emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 4)), CXT);\ - emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 11)), \ - plus_constant (FNADDR, 2)); \ -} - -/* 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_POST_DECREMENT 0 */ - -#define HAVE_PRE_DECREMENT 1 -/* #define HAVE_PRE_INCREMENT 0 */ - -/* 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) \ - (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ - || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST \ - || GET_CODE (X) == HIGH) - -/* 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) 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) 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_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. */ - -#ifdef NO_EXTERNAL_INDIRECT_ADDRESS - -/* Zero if this contains a (CONST (PLUS (SYMBOL_REF) (...))) and the - symbol in the SYMBOL_REF is an external symbol. */ - -#define INDIRECTABLE_CONSTANT_P(X) \ - (! (GET_CODE ((X)) == CONST \ - && GET_CODE (XEXP ((X), 0)) == PLUS \ - && GET_CODE (XEXP (XEXP ((X), 0), 0)) == SYMBOL_REF \ - && SYMBOL_REF_FLAG (XEXP (XEXP ((X), 0), 0)))) - -/* Re-definition of CONSTANT_ADDRESS_P, which is true only when there - are no SYMBOL_REFs for external symbols present. */ - -#define INDIRECTABLE_CONSTANT_ADDRESS_P(X) \ - (GET_CODE (X) == LABEL_REF \ - || (GET_CODE (X) == SYMBOL_REF && !SYMBOL_REF_FLAG (X)) \ - || (GET_CODE (X) == CONST && INDIRECTABLE_CONSTANT_P(X)) \ - || GET_CODE (X) == CONST_INT) - - -/* Non-zero if X is an address which can be indirected. External symbols - could be in a sharable image library, so we disallow those. */ - -#define INDIRECTABLE_ADDRESS_P(X) \ - (INDIRECTABLE_CONSTANT_ADDRESS_P (X) \ - || (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) \ - || (GET_CODE (X) == PLUS \ - && GET_CODE (XEXP (X, 0)) == REG \ - && REG_OK_FOR_BASE_P (XEXP (X, 0)) \ - && INDIRECTABLE_CONSTANT_ADDRESS_P (XEXP (X, 1)))) - -#else /* not NO_EXTERNAL_INDIRECT_ADDRESS */ - -#define INDIRECTABLE_CONSTANT_ADDRESS_P(X) CONSTANT_ADDRESS_P(X) - -/* Non-zero if X is an address which can be indirected. */ -#define INDIRECTABLE_ADDRESS_P(X) \ - (CONSTANT_ADDRESS_P (X) \ - || (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) \ - || (GET_CODE (X) == PLUS \ - && GET_CODE (XEXP (X, 0)) == REG \ - && REG_OK_FOR_BASE_P (XEXP (X, 0)) \ - && CONSTANT_ADDRESS_P (XEXP (X, 1)))) - -#endif /* not NO_EXTERNAL_INDIRECT_ADDRESS */ - -/* Go to ADDR if X is a valid address not using indexing. - (This much is the easy part.) */ -#define GO_IF_NONINDEXED_ADDRESS(X, ADDR) \ -{ register rtx xfoob = (X); \ - if (GET_CODE (xfoob) == REG) \ - { \ - extern rtx *reg_equiv_mem; \ - if (! reload_in_progress \ - || reg_equiv_mem[REGNO (xfoob)] == 0 \ - || INDIRECTABLE_ADDRESS_P (reg_equiv_mem[REGNO (xfoob)])) \ - goto ADDR; \ - } \ - if (CONSTANT_ADDRESS_P (xfoob)) goto ADDR; \ - if (INDIRECTABLE_ADDRESS_P (xfoob)) goto ADDR; \ - xfoob = XEXP (X, 0); \ - if (GET_CODE (X) == MEM && INDIRECTABLE_ADDRESS_P (xfoob)) \ - goto ADDR; \ - if ((GET_CODE (X) == PRE_DEC || GET_CODE (X) == POST_INC) \ - && GET_CODE (xfoob) == REG && REG_OK_FOR_BASE_P (xfoob)) \ - goto ADDR; } - -/* 1 if PROD is either a reg times size of mode MODE - or just a reg, if MODE is just one byte. - This macro's expansion uses the temporary variables xfoo0 and xfoo1 - that must be declared in the surrounding context. */ -#define INDEX_TERM_P(PROD, MODE) \ -(GET_MODE_SIZE (MODE) == 1 \ - ? (GET_CODE (PROD) == REG && REG_OK_FOR_BASE_P (PROD)) \ - : (GET_CODE (PROD) == MULT \ - && \ - (xfoo0 = XEXP (PROD, 0), xfoo1 = XEXP (PROD, 1), \ - ((GET_CODE (xfoo0) == CONST_INT \ - && INTVAL (xfoo0) == GET_MODE_SIZE (MODE) \ - && GET_CODE (xfoo1) == REG \ - && REG_OK_FOR_INDEX_P (xfoo1)) \ - || \ - (GET_CODE (xfoo1) == CONST_INT \ - && INTVAL (xfoo1) == GET_MODE_SIZE (MODE) \ - && GET_CODE (xfoo0) == REG \ - && REG_OK_FOR_INDEX_P (xfoo0)))))) - -/* Go to ADDR if X is the sum of a register - and a valid index term for mode MODE. */ -#define GO_IF_REG_PLUS_INDEX(X, MODE, ADDR) \ -{ register rtx xfooa; \ - if (GET_CODE (X) == PLUS) \ - { if (GET_CODE (XEXP (X, 0)) == REG \ - && REG_OK_FOR_BASE_P (XEXP (X, 0)) \ - && (xfooa = XEXP (X, 1), \ - INDEX_TERM_P (xfooa, MODE))) \ - goto ADDR; \ - if (GET_CODE (XEXP (X, 1)) == REG \ - && REG_OK_FOR_BASE_P (XEXP (X, 1)) \ - && (xfooa = XEXP (X, 0), \ - INDEX_TERM_P (xfooa, MODE))) \ - goto ADDR; } } - -#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ -{ register rtx xfoo, xfoo0, xfoo1; \ - GO_IF_NONINDEXED_ADDRESS (X, ADDR); \ - if (GET_CODE (X) == PLUS) \ - { /* Handle <address>[index] represented with index-sum outermost */\ - xfoo = XEXP (X, 0); \ - if (INDEX_TERM_P (xfoo, MODE)) \ - { GO_IF_NONINDEXED_ADDRESS (XEXP (X, 1), ADDR); } \ - xfoo = XEXP (X, 1); \ - if (INDEX_TERM_P (xfoo, MODE)) \ - { GO_IF_NONINDEXED_ADDRESS (XEXP (X, 0), ADDR); } \ - /* Handle offset(reg)[index] with offset added outermost */ \ - if (INDIRECTABLE_CONSTANT_ADDRESS_P (XEXP (X, 0))) \ - { if (GET_CODE (XEXP (X, 1)) == REG \ - && REG_OK_FOR_BASE_P (XEXP (X, 1))) \ - goto ADDR; \ - GO_IF_REG_PLUS_INDEX (XEXP (X, 1), MODE, ADDR); } \ - if (INDIRECTABLE_CONSTANT_ADDRESS_P (XEXP (X, 1))) \ - { if (GET_CODE (XEXP (X, 0)) == REG \ - && REG_OK_FOR_BASE_P (XEXP (X, 0))) \ - goto ADDR; \ - GO_IF_REG_PLUS_INDEX (XEXP (X, 0), MODE, ADDR); } } } - -/* Try machine-dependent ways of modifying an illegitimate address - to be legitimate. If we find one, return the new, valid address. - This macro is used in only one place: `memory_address' in explow.c. - - OLDX is the address as it was before break_out_memory_refs was called. - In some cases it is useful to look at this to decide what needs to be done. - - MODE and WIN are passed so that this macro can use - GO_IF_LEGITIMATE_ADDRESS. - - It is always safe for this macro to do nothing. It exists to recognize - opportunities to optimize the output. - - For the vax, nothing needs to be done. */ - -#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) {} - -/* Go to LABEL if ADDR (a legitimate address expression) - has an effect that depends on the machine mode it is used for. - On the VAX, the predecrement and postincrement address depend thus - (the amount of decrement or increment being the length of the operand) - and all indexed address depend thus (because the index scale factor - is the length of the operand). */ -#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) \ - { if (GET_CODE (ADDR) == POST_INC || GET_CODE (ADDR) == PRE_DEC) \ - goto LABEL; \ - if (GET_CODE (ADDR) == PLUS) \ - { if (CONSTANT_ADDRESS_P (XEXP (ADDR, 0)) \ - && GET_CODE (XEXP (ADDR, 1)) == REG); \ - else if (CONSTANT_ADDRESS_P (XEXP (ADDR, 1)) \ - && GET_CODE (XEXP (ADDR, 0)) == REG); \ - else 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 - -/* Define this if the case instruction drops through after the table - when the index is out of range. Don't define it if the case insn - jumps to the default label instead. */ -#define CASE_DROPS_THROUGH - -/* Specify the tree operation to be used to convert reals to integers. */ -#define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR - -/* This is the kind of divide that is easiest to do in the general case. */ -#define EASY_DIV_EXPR TRUNC_DIV_EXPR - -/* 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 - -/* Define this if zero-extension is slow (more than one real instruction). */ -/* #define SLOW_ZERO_EXTEND */ - -/* 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 - -/* This machine doesn't use IEEE floats. */ - -#define TARGET_FLOAT_FORMAT VAX_FLOAT_FORMAT - -/* Compute the cost of computing a constant rtl expression RTX - whose rtx-code is CODE. The body of this macro is a portion - of a switch statement. If the code is computed here, - return it with a return statement. Otherwise, break from the switch. */ - -/* On a VAX, constants from 0..63 are cheap because they can use the - 1 byte literal constant format. compare to -1 should be made cheap - so that decrement-and-branch insns can be formed more easily (if - the value -1 is copied to a register some decrement-and-branch patterns - will not match). */ - -#define CONST_COSTS(RTX,CODE,OUTER_CODE) \ - case CONST_INT: \ - if (INTVAL (RTX) == 0) return 0; \ - if ((OUTER_CODE) == AND) \ - return ((unsigned) ~INTVAL (RTX) <= 077) ? 1 : 2; \ - if ((unsigned) INTVAL (RTX) <= 077) return 1; \ - if ((OUTER_CODE) == COMPARE && INTVAL (RTX) == -1) \ - return 1; \ - if ((OUTER_CODE) == PLUS && (unsigned) -INTVAL (RTX) <= 077)\ - return 1; \ - case CONST: \ - case LABEL_REF: \ - case SYMBOL_REF: \ - return 3; \ - case CONST_DOUBLE: \ - if (GET_MODE_CLASS (GET_MODE (RTX)) == MODE_FLOAT) \ - return vax_float_literal (RTX) ? 5 : 8; \ - else \ - return (((CONST_DOUBLE_HIGH (RTX) == 0 \ - && (unsigned) CONST_DOUBLE_LOW (RTX) < 64) \ - || ((OUTER_CODE) == PLUS \ - && CONST_DOUBLE_HIGH (RTX) == -1 \ - && (unsigned)-CONST_DOUBLE_LOW (RTX) < 64)) \ - ? 2 : 5); - -#define RTX_COSTS(RTX,CODE,OUTER_CODE) case FIX: case FLOAT: \ - case MULT: case DIV: case UDIV: case MOD: case UMOD: \ - case ASHIFT: case LSHIFTRT: case ASHIFTRT: \ - case ROTATE: case ROTATERT: case PLUS: case MINUS: case IOR: \ - case XOR: case AND: case NEG: case NOT: case ZERO_EXTRACT: \ - case SIGN_EXTRACT: case MEM: return vax_rtx_cost(RTX) - -#define ADDRESS_COST(RTX) (1 + (GET_CODE (RTX) == REG ? 0 : vax_address_cost(RTX))) - -/* 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 0 - -/* - * We can use the BSD C library routines for the libgcc calls that are - * still generated, since that's what they boil down to anyways. - */ - -#define UDIVSI3_LIBCALL "*udiv" -#define UMODSI3_LIBCALL "*urem" - -/* Check a `double' value for validity for a particular machine mode. */ - -/* note that it is very hard to accidentally create a number that fits in a - double but not in a float, since their ranges are almost the same */ - -#define CHECK_FLOAT_VALUE(MODE, D, OVERFLOW) \ - ((OVERFLOW) = check_float_value (MODE, &D, OVERFLOW)) - -/* For future reference: - D Float: 9 bit, sign magnitude, excess 128 binary exponent - normalized 56 bit fraction, redundant bit not represented - approximately 16 decimal digits of precision - - The values to use if we trust decimal to binary conversions: -#define MAX_D_FLOAT 1.7014118346046923e+38 -#define MIN_D_FLOAT .29387358770557188e-38 - - G float: 12 bit, sign magnitude, excess 1024 binary exponent - normalized 53 bit fraction, redundant bit not represented - approximately 15 decimal digits precision - - The values to use if we trust decimal to binary conversions: -#define MAX_G_FLOAT .898846567431157e+308 -#define MIN_G_FLOAT .556268464626800e-308 -*/ - -/* 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) \ -{ if (GET_CODE (EXP) == SET) \ - { if (GET_CODE (SET_SRC (EXP)) == CALL) \ - CC_STATUS_INIT; \ - else if (GET_CODE (SET_DEST (EXP)) != ZERO_EXTRACT \ - && GET_CODE (SET_DEST (EXP)) != PC) \ - { cc_status.flags = 0; \ - cc_status.value1 = SET_DEST (EXP); \ - cc_status.value2 = SET_SRC (EXP); } } \ - else if (GET_CODE (EXP) == PARALLEL \ - && GET_CODE (XVECEXP (EXP, 0, 0)) == SET) \ - { \ - if (GET_CODE (SET_SRC (XVECEXP (EXP, 0, 0))) == CALL) \ - CC_STATUS_INIT; \ - else if (GET_CODE (SET_DEST (XVECEXP (EXP, 0, 0))) != PC) \ - { cc_status.flags = 0; \ - cc_status.value1 = SET_DEST (XVECEXP (EXP, 0, 0)); \ - cc_status.value2 = SET_SRC (XVECEXP (EXP, 0, 0)); } \ - else \ - /* PARALLELs whose first element sets the PC are aob, \ - sob insns. They do change the cc's. */ \ - CC_STATUS_INIT; } \ - else CC_STATUS_INIT; \ - if (cc_status.value1 && GET_CODE (cc_status.value1) == REG \ - && cc_status.value2 \ - && reg_overlap_mentioned_p (cc_status.value1, cc_status.value2)) \ - cc_status.value2 = 0; \ - if (cc_status.value1 && GET_CODE (cc_status.value1) == MEM \ - && cc_status.value2 \ - && GET_CODE (cc_status.value2) == MEM) \ - cc_status.value2 = 0; } -/* Actual condition, one line up, should be that value2's address - depends on value1, but that is too much of a pain. */ - -#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. */ - -/* Output at beginning of assembler file. */ - -#define ASM_FILE_START(FILE) fprintf (FILE, "#NO_APP\n"); - -/* 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 ".text" - -/* Output before writable data. */ - -#define DATA_SECTION_ASM_OP ".data" - -/* 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", "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 - -/* How to renumber registers for dbx and gdb. - Vax needs no change in the numeration. */ - -#define DBX_REGISTER_NUMBER(REGNO) (REGNO) - -/* 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 the definition of a user-level label named NAME, - such as the label on a static function or variable NAME. */ - -#define ASM_OUTPUT_LABEL(FILE,NAME) \ - do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0) - -/* This is how to output a command to make the user-level label named NAME - defined for reference from other files. */ - -#define ASM_GLOBALIZE_LABEL(FILE,NAME) \ - do { fputs (".globl ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0) - -/* The prefix to add to user-visible assembler symbols. */ - -#define USER_LABEL_PREFIX "_" - -/* This is how to output an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. */ - -#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ - fprintf (FILE, "%s%d:\n", PREFIX, NUM) - -/* 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%d", PREFIX, NUM) - -/* This is how to output an assembler line defining a `double' constant. - It is .dfloat or .gfloat, depending. */ - -#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ -do { char dstr[30]; \ - REAL_VALUE_TO_DECIMAL (VALUE, "%.20e", dstr); \ - fprintf (FILE, "\t.%cfloat 0%c%s\n", ASM_DOUBLE_CHAR, \ - ASM_DOUBLE_CHAR, dstr); \ - } while (0); - -/* This is how to output an assembler line defining a `float' constant. */ - -#define ASM_OUTPUT_FLOAT(FILE,VALUE) \ - do { char dstr[30]; \ - REAL_VALUE_TO_DECIMAL (VALUE, "%.20e", dstr); \ - fprintf (FILE, "\t.float 0f%s\n", dstr); } while (0); - -/* This is how to output an assembler line defining an `int' constant. */ - -#define ASM_OUTPUT_INT(FILE,VALUE) \ -( fprintf (FILE, "\t.long "), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -/* Likewise for `char' and `short' constants. */ - -#define ASM_OUTPUT_SHORT(FILE,VALUE) \ -( fprintf (FILE, "\t.word "), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -#define ASM_OUTPUT_CHAR(FILE,VALUE) \ -( fprintf (FILE, "\t.byte "), \ - output_addr_const (FILE, (VALUE)), \ - fprintf (FILE, "\n")) - -/* This is how to output an assembler line for a numeric constant byte. */ - -#define ASM_OUTPUT_BYTE(FILE,VALUE) \ - fprintf (FILE, "\t.byte 0x%x\n", (VALUE)) - -/* 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 (sp)+,%s\n", 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) \ - fprintf (FILE, "\t.long L%d\n", 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.word L%d-L%d\n", VALUE, REL) - -/* 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", (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", (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", (ROUNDED))) - -/* Store in OUTPUT a string (made with alloca) containing - an assembler-name for a local static variable named NAME. - LABELNO is an integer which is different for each call. */ - -#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ -( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \ - sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO))) - -/* When debugging, we want to output an extra dummy label so that gas - can distinguish between D_float and G_float prior to processing the - .stabs directive identifying type double. */ - -#define ASM_IDENTIFY_LANGUAGE(FILE) \ - do { \ - output_lang_identify (FILE); \ - if (write_symbols == DBX_DEBUG) \ - fprintf (FILE, "___vax_%c_doubles:\n", ASM_DOUBLE_CHAR); \ - } while (0) - -/* Output code to add DELTA to the first argument, and then jump to FUNCTION. - Used for C++ multiple inheritance. - .mask ^m<r2,r3,r4,r5,r6,r7,r8,r9,r10,r11> #conservative entry mask - addl2 $DELTA, 4(ap) #adjust first argument - jmp FUNCTION+2 #jump beyond FUNCTION's entry mask - */ -#define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \ -do { \ - fprintf (FILE, "\t.word 0x0ffc\n"); \ - fprintf (FILE, "\taddl2 $%d,4(ap)\n", DELTA); \ - fprintf (FILE, "\tjmp "); \ - assemble_name (FILE, XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0)); \ - fprintf (FILE, "+2\n"); \ -} while (0) - -/* Define the parentheses used to group arithmetic operations - in assembler code. */ - -#define ASM_OPEN_PAREN "(" -#define ASM_CLOSE_PAREN ")" - -/* Define results of standard character escape sequences. */ -#define TARGET_BELL 007 -#define TARGET_BS 010 -#define TARGET_TAB 011 -#define TARGET_NEWLINE 012 -#define TARGET_VT 013 -#define TARGET_FF 014 -#define TARGET_CR 015 - -/* 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 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 */ - -/* 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. */ - -#define PRINT_OPERAND_PUNCT_VALID_P(CODE) \ - ((CODE) == '#') - -#define PRINT_OPERAND(FILE, X, CODE) \ -{ extern char *rev_cond_name (); \ - if (CODE == '#') fputc (ASM_DOUBLE_CHAR, FILE); \ - else if (CODE == 'C') \ - fputs (rev_cond_name (X), FILE); \ - else if (CODE == 'D' && GET_CODE (X) == CONST_INT && INTVAL (X) < 0) \ - fprintf (FILE, "$0xffffffff%08x", INTVAL (X)); \ - else if (CODE == 'P' && GET_CODE (X) == CONST_INT) \ - fprintf (FILE, "$%d", INTVAL (X) + 1); \ - else if (CODE == 'N' && GET_CODE (X) == CONST_INT) \ - fprintf (FILE, "$%d", ~ INTVAL (X)); \ - /* rotl instruction cannot deal with negative arguments. */ \ - else if (CODE == 'R' && GET_CODE (X) == CONST_INT) \ - fprintf (FILE, "$%d", 32 - INTVAL (X)); \ - else if (CODE == 'H' && GET_CODE (X) == CONST_INT) \ - fprintf (FILE, "$%d", 0xffff & ~ INTVAL (X)); \ - else if (CODE == 'h' && GET_CODE (X) == CONST_INT) \ - fprintf (FILE, "$%d", (short) - INTVAL (x)); \ - else if (CODE == 'B' && GET_CODE (X) == CONST_INT) \ - fprintf (FILE, "$%d", 0xff & ~ INTVAL (X)); \ - else if (CODE == 'b' && GET_CODE (X) == CONST_INT) \ - fprintf (FILE, "$%d", 0xff & - INTVAL (X)); \ - else if (CODE == 'M' && GET_CODE (X) == CONST_INT) \ - fprintf (FILE, "$%d", ~((1 << INTVAL (x)) - 1)); \ - else if (GET_CODE (X) == REG) \ - fprintf (FILE, "%s", reg_names[REGNO (X)]); \ - else if (GET_CODE (X) == MEM) \ - output_address (XEXP (X, 0)); \ - else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ - { REAL_VALUE_TYPE r; char dstr[30]; \ - REAL_VALUE_FROM_CONST_DOUBLE (r, X); \ - REAL_VALUE_TO_DECIMAL (r, "%.20e", dstr); \ - fprintf (FILE, "$0f%s", dstr); } \ - else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == DFmode) \ - { REAL_VALUE_TYPE r; char dstr[30]; \ - REAL_VALUE_FROM_CONST_DOUBLE (r, X); \ - REAL_VALUE_TO_DECIMAL (r, "%.20e", dstr); \ - fprintf (FILE, "$0%c%s", ASM_DOUBLE_CHAR, dstr); } \ - else { putc ('$', FILE); output_addr_const (FILE, X); }} - -/* 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) |