-/* Definitions of target machine for GNU compiler. Vax version.
- Copyright (C) 1987, 1988, 1991, 1993 Free Software Foundation, Inc.
+/* 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 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)
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with GCC; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
-/* Names to predefine in the preprocessor for this target machine. */
+/* 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 CPP_PREDEFINES "-Dvax -Dunix"
+#define VMS_TARGET 0
-/* If using g-format floating point, alter math.h. */
+/* Use -J option for long branch support with Unix assembler. */
-#define CPP_SPEC "%{mg:-DGFLOAT}"
+#define ASM_SPEC "-J"
/* Choose proper libraries depending on float format.
Note that there are no profiling libraries for g-format.
/* Print subsidiary information on the compiler version in use. */
-#define TARGET_VERSION fprintf (stderr, " (vax)");
+#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}}
+/* Nonzero if ELF. Redefined by vax/elf.h. */
+#define TARGET_ELF 0
/* Default target_flags if no switches specified. */
#ifndef TARGET_DEFAULT
-#define TARGET_DEFAULT 1
+#define TARGET_DEFAULT (MASK_UNIX_ASM)
#endif
+
+#define OVERRIDE_OPTIONS override_options ()
+
\f
/* 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. */
+ 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. */
+/* 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. */
+/* 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
/* 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. */
+/* 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. */
/* 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
\f
/* Standard register usage. */
/* 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. */
+ 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.
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. */
+ 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. */
+ 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
/* Specify the registers used for certain standard purposes.
The values of these macros are register numbers. */
-/* Vax pc is overloaded on a register. */
+/* VAX pc is overloaded on a register. */
#define PC_REGNUM 15
/* Register to use for pushing function arguments. */
/* 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
+/* 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 GENERAL_REGS ALL_REGS
-/* Give names of register classes as strings for dump file. */
+/* Give names of register classes as strings for dump file. */
#define REG_CLASS_NAMES \
{"NO_REGS", "ALL_REGS" }
This is an initializer for a vector of HARD_REG_SET
of length N_REG_CLASSES. */
-#define REG_CLASS_CONTENTS {0, 0xffff}
+#define REG_CLASS_CONTENTS {{0}, {0xffff}}
/* The same information, inverted:
Return the class number of the smallest class containing
#define REG_CLASS_FROM_LETTER(C) NO_REGS
-/* The letters I, J, K, L and M in a register constraint string
+/* 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. */
+ `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) == '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.
/* 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,
+/* 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)
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
/* 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_rtx (CONST_INT, VOIDmode, 12))
+#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. */
+ 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. */
/* 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. */
+ On the VAX, the RET insn pops a maximum of 255 args for any function. */
-#define RETURN_POPS_ARGS(FUNTYPE,SIZE) (SIZE)
+#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) \
- gen_rtx (REG, TYPE_MODE (VALTYPE), 0)
+ 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)
+#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. */
+ 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. */
+ On the VAX, no registers are used in this way. */
#define FUNCTION_ARG_REGNO_P(N) 0
\f
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
+ On the VAX, this is a single integer, which is a number of bytes
of arguments scanned so far. */
#define CUMULATIVE_ARGS int
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. */
+ On the VAX, the offset starts at 0. */
-#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) \
+#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
((CUM) = 0)
/* Update the data in CUM to advance over an argument
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. */
+/* 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.
- 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; \
- 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)
+#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
#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
+ 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:
+/* 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_rtx (CONST_INT, VOIDmode, 0x8fd0)); \
- ASM_OUTPUT_INT (FILE, const0_rtx); \
- ASM_OUTPUT_BYTE (FILE, 0x50+STATIC_CHAIN_REGNUM); \
- ASM_OUTPUT_SHORT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x9f17)); \
- ASM_OUTPUT_INT (FILE, const0_rtx); \
+ 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. */
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)), \
+ 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. */
+
+#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)
+
\f
/* Addressing modes, and classification of registers for them. */
-#define HAVE_POST_INCREMENT
-/* #define HAVE_POST_DECREMENT */
+#define HAVE_POST_INCREMENT 1
-#define HAVE_PRE_DECREMENT
-/* #define HAVE_PRE_INCREMENT */
+#define HAVE_PRE_DECREMENT 1
/* Macros to check register numbers against specific register classes. */
|| GET_CODE (X) == CONST_INT)
-/* Non-zero if X is an address which can be indirected. External symbols
+/* 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) \
#define INDIRECTABLE_CONSTANT_ADDRESS_P(X) CONSTANT_ADDRESS_P(X)
-/* Non-zero if X is an address which can be indirected. */
+/* 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 (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.
+/* 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_CODE (PROD) == MULT && GET_MODE_SIZE (MODE) <= 8 \
&& \
(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))))))
+ ((((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. */
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
for the index in the tablejump instruction. */
#define CASE_VECTOR_MODE HImode
-/* Define this if the case instruction expects the table
- to contain offsets from the address of the table.
+/* 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
-
-/* 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
+#define CASE_VECTOR_PC_RELATIVE 1
-/* This is the kind of divide that is easiest to do in the general case. */
-#define EASY_DIV_EXPR TRUNC_DIV_EXPR
+/* 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
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 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 LSHIFT: 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.
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) (check_float_value (mode, &d))
-
-/* 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
-*/
\f
/* 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. */
+ (see `conditions.h'). No extra ones are needed for the VAX. */
/* Store in cc_status the expressions
that the condition codes will describe
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)) != 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)); } } \
- /* PARALLELs whose first element sets the PC are aob, sob insns. \
- They do change the cc's. So drop through and forget the cc's. */ \
- 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. */
+ vax_notice_update_cc ((EXP), (INSN))
#define OUTPUT_JUMP(NORMAL, FLOAT, NO_OV) \
{ if (cc_status.flags & CC_NO_OVERFLOW) \
\f
/* Control the assembler format that we output. */
-/* Output at beginning of assembler file. */
+/* 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_FILE_START(FILE) fprintf (FILE, "#NO_APP\n");
+#define ASM_COMMENT_START "#"
/* Output to assembler file text saying following lines
may contain character constants, extra white space, comments, etc. */
/* Output before read-only data. */
-#define TEXT_SECTION_ASM_OP ".text"
+#define TEXT_SECTION_ASM_OP "\t.text"
/* Output before writable data. */
-#define DATA_SECTION_ASM_OP ".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). */
+ 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
-
-/* How to renumber registers for dbx and gdb.
- Vax needs no change in the numeration. */
-
-#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+#define DBX_DEBUGGING_INFO 1
/* Do not break .stabs pseudos into continuations. */
/* 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? */
+/* 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)
-
-/* This is how to output a reference to a user-level label named NAME. */
-
-#define ASM_OUTPUT_LABELREF(FILE,NAME) \
- fprintf (FILE, "_%s", NAME)
+/* Globalizing directive for a label. */
+#define GLOBAL_ASM_OP ".globl "
-/* This is how to output an internal numbered label where
- PREFIX is the class of label and NUM is the number within the class. */
+/* The prefix to add to user-visible assembler symbols. */
-#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
- fprintf (FILE, "%s%d:\n", PREFIX, NUM)
+#define USER_LABEL_PREFIX "_"
/* This is how to store into the string LABEL
the symbol_ref name of an internal numbered label where
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))
+ 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. */
It need not be very fast code. */
#define ASM_OUTPUT_REG_POP(FILE,REGNO) \
- fprintf (FILE, "\tmovl (sp)+,%s\n", reg_names[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,
+ (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)
+#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, VALUE, REL) \
- fprintf (FILE, "\t.word L%d-L%d\n", VALUE, REL)
+#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
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)))
+ 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)))
+ fprintf ((FILE), ",%u\n", (int)(ROUNDED)))
/* Store in OUTPUT a string (made with alloca) containing
an assembler-name for a local static variable named NAME.
( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \
sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO)))
-/* 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'.
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 */
+ # '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
+/* 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) \
- ((CODE) == '#')
+ ((CODE) == '#' || (CODE) == '|')
#define PRINT_OPERAND(FILE, X, CODE) \
-{ extern char *rev_cond_name (); \
- if (CODE == '#') fputc (ASM_DOUBLE_CHAR, FILE); \
+{ 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, "$0xffffffff%08x", INTVAL (X)); \
+ fprintf (FILE, "$" NEG_HWI_PRINT_HEX16, INTVAL (X)); \
else if (CODE == 'P' && GET_CODE (X) == CONST_INT) \
- fprintf (FILE, "$%d", INTVAL (X) + 1); \
+ fprintf (FILE, "$" HOST_WIDE_INT_PRINT_DEC, INTVAL (X) + 1); \
else if (CODE == 'N' && GET_CODE (X) == CONST_INT) \
- fprintf (FILE, "$%d", ~ INTVAL (X)); \
+ fprintf (FILE, "$" HOST_WIDE_INT_PRINT_DEC, ~ INTVAL (X)); \
/* rotl instruction cannot deal with negative arguments. */ \
else if (CODE == 'R' && GET_CODE (X) == CONST_INT) \
- fprintf (FILE, "$%d", 32 - INTVAL (X)); \
+ fprintf (FILE, "$" HOST_WIDE_INT_PRINT_DEC, 32 - INTVAL (X)); \
else if (CODE == 'H' && GET_CODE (X) == CONST_INT) \
- fprintf (FILE, "$%d", 0xffff & ~ INTVAL (X)); \
+ fprintf (FILE, "$%d", (int) (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)); \
+ fprintf (FILE, "$%d", (int) (0xff & ~ INTVAL (X))); \
else if (CODE == 'b' && GET_CODE (X) == CONST_INT) \
- fprintf (FILE, "$%d", 0xff & - INTVAL (X)); \
+ fprintf (FILE, "$%d", (int) (0xff & - INTVAL (X))); \
else if (CODE == 'M' && GET_CODE (X) == CONST_INT) \
fprintf (FILE, "$%d", ~((1 << INTVAL (x)) - 1)); \
else if (GET_CODE (X) == REG) \
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); \
+ { 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) \
- { REAL_VALUE_TYPE r; char dstr[30]; \
- REAL_VALUE_FROM_CONST_DOUBLE (r, X); \
- REAL_VALUE_TO_DECIMAL (r, "%.20e", dstr); \
+ { 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); }}
#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)
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