/* Definitions of target machine for GNU compiler. VAX version.
- Copyright (C) 1987, 1988, 1991, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1987-2020 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
/* Target CPU builtins. */
} \
while (0)
-#define VMS_TARGET 0
-
/* Use -J option for long branch support with Unix assembler. */
#define ASM_SPEC "-J"
%{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;
-
-#define MASK_UNIX_ASM 1
-#define MASK_VAXC_ALIGNMENT 2
-#define MASK_G_FLOAT 4
-
-
-/* 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 & MASK_UNIX_ASM)
+/* Nonzero if ELF. Redefined by vax/elf.h. */
+#define TARGET_ELF 0
-/* Nonzero if compiling with VAX-11 "C" style structure alignment */
-#define TARGET_VAXC_ALIGNMENT (target_flags & MASK_VAXC_ALIGNMENT)
-
-/* Nonzero if compiling with `G'-format floating point */
-#define TARGET_G_FLOAT (target_flags & MASK_G_FLOAT)
-
-/* 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", MASK_UNIX_ASM, \
- "Generate code for UNIX assembler"}, \
- {"gnu", -MASK_UNIX_ASM, \
- "Generate code for GNU assembler (gas)"}, \
- {"vaxc-alignment", MASK_VAXC_ALIGNMENT, \
- "Use VAXC structure conventions"}, \
- {"g", MASK_G_FLOAT, \
- "Generate GFLOAT double precision code"}, \
- {"g-float", MASK_G_FLOAT, \
- "Generate GFLOAT double precision code"}, \
- {"d", -MASK_G_FLOAT, \
- "Generate DFLOAT double precision code"}, \
- {"d-float", -MASK_G_FLOAT, \
- "Generate DFLOAT double precision code"}, \
- { "", TARGET_DEFAULT, 0}}
+/* Use BSD names for udiv and umod libgcc calls. */
+#define TARGET_BSD_DIVMOD 1
/* Default target_flags if no switches specified. */
#define TARGET_DEFAULT (MASK_UNIX_ASM)
#endif
-#define OVERRIDE_OPTIONS override_options ()
-
\f
/* Target machine storage layout */
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
+#define PC_REGNUM VAX_PC_REGNUM
/* Register to use for pushing function arguments. */
-#define STACK_POINTER_REGNUM 14
+#define STACK_POINTER_REGNUM VAX_SP_REGNUM
/* Base register for access to local variables of the function. */
-#define FRAME_POINTER_REGNUM 13
+#define FRAME_POINTER_REGNUM VAX_FP_REGNUM
-/* 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
+/* 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 12
+#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 STRUCT_VALUE_REGNUM 1
+#define VAX_STRUCT_VALUE_REGNUM 1
\f
/* Define the classes of registers for register constraints in the
machine description. Also define ranges of constants.
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. */
/* Give names of register classes as strings for dump file. */
-#define REG_CLASS_NAMES \
- {"NO_REGS", "ALL_REGS" }
+#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
reg number REGNO. This could be a conditional expression
or could index an array. */
-#define REGNO_REG_CLASS(REGNO) ALL_REGS
+#define REGNO_REG_CLASS(REGNO) ((void)(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, M, N, and O 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.
- `J' is a value between 0 .. 63 (inclusive)
- `K' is a value between -128 and 127 (inclusive)
- 'L' is a value between -32768 and 32767 (inclusive)
- `M' is a value between 0 and 255 (inclusive)
- 'N' is a value between 0 and 65535 (inclusive)
- `O' is a value between -63 and -1 (inclusive) */
-
-#define CONST_OK_FOR_LETTER_P(VALUE, C) \
- ( (C) == 'I' ? (VALUE) == 0 \
- : (C) == 'J' ? 0 <= (VALUE) && (VALUE) < 64 \
- : (C) == 'O' ? -63 <= (VALUE) && (VALUE) < 0 \
- : (C) == 'K' ? -128 <= (VALUE) && (VALUE) < 128 \
- : (C) == 'M' ? 0 <= (VALUE) && (VALUE) < 256 \
- : (C) == 'L' ? -32768 <= (VALUE) && (VALUE) < 32768 \
- : (C) == 'N' ? 0 <= (VALUE) && (VALUE) < 65536 \
- : 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)
\f
/* 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 STACK_GROWS_DOWNWARD 1
-/* Define this if the nominal address of the stack frame
+/* 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
-
-/* 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
+#define FRAME_GROWS_DOWNWARD 1
/* 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)
+#define DYNAMIC_CHAIN_ADDRESS(FRAME) plus_constant (Pmode, (FRAME), 12)
/* If we generate an insn to push BYTES bytes,
this says how many the stack pointer really advances by.
/* 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 pops a maximum of 255 args for any function. */
-
-#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) \
- ((SIZE) > 255*4 ? 0 : (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. */
+/* On the VAX the return value is in R0 regardless. */
-#define FUNCTION_VALUE(VALTYPE, FUNC) \
+#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. */
+/* On the VAX the return value is in R0 regardless. */
#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, 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 FUNCTION_ARG_REGNO_P(N) ((void) (N), 0)
\f
/* Define a data type for recording info about an argument list
during the scan of that argument list. This data type should
On the VAX, the offset starts at 0. */
-#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,INDIRECT) \
+#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
((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
-
/* Output assembler code to FILE to increment profiler label # LABELNO
for profiling a function entry. */
} \
while (0)
+/* This macro specifies a table of register pairs used to eliminate
+ unneeded registers that point into the stack frame. */
+#define ELIMINABLE_REGS {{FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}}
+
+/* On the VAX, FRAME_POINTER_REQUIRED is always 1, so the definition of this
+ macro doesn't matter for register eliminations, but it should still
+ give realistic data for rtx_addr_can_trap_p. */
+#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
+ ((OFFSET) = get_frame_size ())
+
/* 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.
#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;
-
-/* 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) \
-{ \
- assemble_aligned_integer (2, const0_rtx); \
- assemble_aligned_integer (2, GEN_INT (0x8fd0)); \
- assemble_aligned_integer (4, const0_rtx); \
- assemble_aligned_integer (1, GEN_INT (0x50 + STATIC_CHAIN_REGNUM)); \
- assemble_aligned_integer (2, GEN_INT (0x9f17)); \
- assemble_aligned_integer (4, 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_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)); \
- emit_insn (gen_sync_istream ()); \
-}
-
/* 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. */
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)) \
+#define RETURN_ADDR_RTX(COUNT, FRAME) \
+ ((COUNT == 0) \
+ ? gen_rtx_MEM (Pmode, plus_constant (Pmode, FRAME, \
+ RETURN_ADDRESS_OFFSET)) \
: (rtx) 0)
\f
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. */
+ has been allocated, which happens in reginfo.c during register
+ allocation. */
-#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)
+#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)
\f
/* Maximum number of registers that can appear in a valid memory address. */
/* 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
+#define CONSTANT_ADDRESS_P(X) legitimate_constant_address_p (X)
/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
and check its validity for a certain class.
/* 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
/* 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
\f
-/* 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)
-
-
-/* Nonzero 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)
-
-/* Nonzero 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 and MODE is less
- than or equal 8 bytes, or just a reg if MODE is 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 && GET_MODE_SIZE (MODE) <= 8 \
- && \
- (xfoo0 = XEXP (PROD, 0), xfoo1 = XEXP (PROD, 1), \
- ((((GET_CODE (xfoo0) == CONST_INT \
- && GET_CODE (xfoo1) == REG) \
- && INTVAL (xfoo0) == (int)GET_MODE_SIZE (MODE)) \
- && REG_OK_FOR_INDEX_P (xfoo1)) \
- || \
- (((GET_CODE (xfoo1) == CONST_INT \
- && GET_CODE (xfoo0) == REG) \
- && INTVAL (xfoo1) == (int)GET_MODE_SIZE (MODE)) \
- && 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); } } }
-\f
-/* 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; }}
-\f
/* Specify the machine mode that this machine uses
for the index in the tablejump instruction. */
#define CASE_VECTOR_MODE HImode
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
-
/* 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 cpymem 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
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
-
-/* When a prototype says `char' or `short', really pass an `int'.
- (On the VAX, this is required for system-library compatibility.) */
-#define PROMOTE_PROTOTYPES 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. */
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
-
/* 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"
+#define BRANCH_COST(speed_p, predictable_p) 0
\f
/* Tell final.c how to eliminate redundant test instructions. */
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; \
- /* The integer operations below don't set carry or \
- set it in an incompatible way. That's ok though \
- as the Z bit is all we need when doing unsigned \
- comparisons on the result of these insns (since \
- they're always with 0). Set CC_NO_OVERFLOW to \
- generate the correct unsigned branches. */ \
- switch (GET_CODE (SET_SRC (EXP))) \
- { \
- case NEG: \
- if (GET_MODE_CLASS (GET_MODE (EXP)) == MODE_FLOAT)\
- break; \
- case AND: \
- case IOR: \
- case XOR: \
- case NOT: \
- case MEM: \
- case REG: \
- cc_status.flags = CC_NO_OVERFLOW; \
- break; \
- default: \
- break; \
- } \
- 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; }
+#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; \
+ }
\f
/* Control the assembler format that we output. */
-/* Output at beginning of assembler file. */
-/* 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_FILE_START(FILE) \
- do { \
- fputs (ASM_APP_OFF, FILE); \
- if (write_symbols == DBX_DEBUG) \
- fprintf (FILE, "___vax_%c_doubles:\n", ASM_DOUBLE_CHAR); \
- } while (0)
+/* 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. */
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"}
+#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. */
This is suitable for output with `assemble_name'. */
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
- sprintf (LABEL, "*%s%d", 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. */
/* 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], \
+#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.
that says to advance the location counter by SIZE bytes. */
#define ASM_OUTPUT_SKIP(FILE,SIZE) \
- fprintf (FILE, "\t.space %u\n", (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", (ROUNDED)))
+#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", (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)))
+#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;
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
/* 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. */
+ 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) \
+#define PRINT_OPERAND_PUNCT_VALID_P(CODE) \
((CODE) == '#' || (CODE) == '|')
#define PRINT_OPERAND(FILE, X, CODE) \
-{ if (CODE == '#') fputc (ASM_DOUBLE_CHAR, FILE); \
- else if (CODE == '|') \
- fputs (REGISTER_PREFIX, 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) \
- { char dstr[30]; \
- real_to_decimal (dstr, CONST_DOUBLE_REAL_VALUE (X), \
- sizeof (dstr), 0, 1); \
- fprintf (FILE, "$0f%s", dstr); } \
- else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == DFmode) \
- { char dstr[30]; \
- real_to_decimal (dstr, CONST_DOUBLE_REAL_VALUE (X), \
- sizeof (dstr), 0, 1); \
- fprintf (FILE, "$0%c%s", ASM_DOUBLE_CHAR, dstr); } \
- else { putc ('$', FILE); output_addr_const (FILE, X); }}
+ 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)
+ 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)
+
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