-/*{{{ Comment */
+/*{{{ Comment. */
/* Definitions of FR30 target.
Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
Boston, MA 02111-1307, USA. */
/*}}}*/ \f
-/*{{{ Includes */
+/*{{{ Includes. */
/* Set up System V.4 (aka ELF) defaults. */
#include "svr4.h"
#include "gansidecl.h"
/*}}}*/ \f
-/*{{{ Driver configuration */
+/*{{{ Driver configuration. */
/* A C expression which determines whether the option `-CHAR' takes arguments.
The value should be the number of arguments that option takes-zero, for many
#undef WORD_SWITCH_TAKES_ARG
/*}}}*/ \f
-/*{{{ Run-time target specifications */
+/*{{{ Run-time target specifications. */
#undef ASM_SPEC
#define ASM_SPEC "%{v}"
#define ENDFILE_SPEC "%{!mno-lsim:-lsim} crtend.o%s crtn.o%s"
/*}}}*/ \f
-/*{{{ Storage Layout */
+/*{{{ Storage Layout. */
/* Define this macro to have the value 1 if the most significant bit in a byte
has the lowest number; otherwise define it to have the value zero. This
is more efficient.
Do not define this macro if it would never modify MODE. */
-#define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \
-do { \
- if (GET_MODE_CLASS (MODE) == MODE_INT \
- && GET_MODE_SIZE (MODE) < 4) \
- (MODE) = SImode; \
-} while (0)
+#define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \
+ do \
+ { \
+ if (GET_MODE_CLASS (MODE) == MODE_INT \
+ && GET_MODE_SIZE (MODE) < 4) \
+ (MODE) = SImode; \
+ } \
+ while (0)
/* Normal alignment required for function parameters on the stack, in bits.
All stack parameters receive at least this much alignment regardless of data
(TREE_CODE (EXP) == STRING_CST \
&& (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
-/* Alignment in bits to be given to a structure bit field that follows an empty
- field such as `int : 0;'.
-
- Note that `PCC_BITFIELD_TYPE_MATTERS' also affects the alignment that
- results from an empty field. */
-/* #define EMPTY_FIELD_BOUNDARY */
-
-/* Number of bits which any structure or union's size must be a multiple of.
- Each structure or union's size is rounded up to a multiple of this.
-
- If you do not define this macro, the default is the same as `BITS_PER_UNIT'. */
-/* #define STRUCTURE_SIZE_BOUNDARY */
-
/* Define this macro to be the value 1 if instructions will fail to work if
given data not on the nominal alignment. If instructions will merely go
slower in that case, define this macro as 0. */
#define DEFAULT_VTABLE_THUNKS 1
/*}}}*/ \f
-/*{{{ Layout of Source Language Data Types */
+/*{{{ Layout of Source Language Data Types. */
#define CHAR_TYPE_SIZE 8
#define SHORT_TYPE_SIZE 16
#define TARGET_CR 0xd /* '\r' */
/*}}}*/ \f
-/*{{{ REGISTER BASICS */
+/*{{{ REGISTER BASICS. */
/* Number of hardware registers known to the compiler. They receive numbers 0
through `FIRST_PSEUDO_REGISTER-1'; thus, the first pseudo register's number
}
/*}}}*/ \f
-/*{{{ How Values Fit in Registers */
+/*{{{ How Values Fit in Registers. */
/* A C expression for the number of consecutive hard registers, starting at
register number REGNO, required to hold a value of mode MODE. */
zero. */
#define MODES_TIEABLE_P(MODE1, MODE2) 1
-/* Define this macro if the compiler should avoid copies to/from CCmode
- registers. You should only define this macro if support fo copying to/from
- CCmode is incomplete. */
-/* #define AVOID_CCMODE_COPIES */
-
/*}}}*/ \f
-/*{{{ Register Classes */
+/*{{{ Register Classes. */
/* An enumeral type that must be defined with all the register class names as
enumeral values. `NO_REGS' must be first. `ALL_REGS' must be the last
floating values cannot be loaded into certain kinds of registers. */
#define PREFERRED_RELOAD_CLASS(X, CLASS) CLASS
-/* Like `PREFERRED_RELOAD_CLASS', but for output reloads instead of input
- reloads. If you don't define this macro, the default is to use CLASS,
- unchanged. */
-/* #define PREFERRED_OUTPUT_RELOAD_CLASS(X, CLASS) */
-
-/* A C expression that places additional restrictions on the register class to
- use when it is necessary to be able to hold a value of mode MODE in a reload
- register for which class CLASS would ordinarily be used.
-
- Unlike `PREFERRED_RELOAD_CLASS', this macro should be used when there are
- certain modes that simply can't go in certain reload classes.
-
- The value is a register class; perhaps CLASS, or perhaps another, smaller
- class.
-
- Don't define this macro unless the target machine has limitations which
- require the macro to do something nontrivial. */
-/* #define LIMIT_RELOAD_CLASS(MODE, CLASS) */
-
-/* Many machines have some registers that cannot be copied directly to or from
- memory or even from other types of registers. An example is the `MQ'
- register, which on most machines, can only be copied to or from general
- registers, but not memory. Some machines allow copying all registers to and
- from memory, but require a scratch register for stores to some memory
- locations (e.g., those with symbolic address on the RT, and those with
- certain symbolic address on the Sparc when compiling PIC). In some cases,
- both an intermediate and a scratch register are required.
-
- You should define these macros to indicate to the reload phase that it may
- need to allocate at least one register for a reload in addition to the
- register to contain the data. Specifically, if copying X to a register
- CLASS in MODE requires an intermediate register, you should define
- `SECONDARY_INPUT_RELOAD_CLASS' to return the largest register class all of
- whose registers can be used as intermediate registers or scratch registers.
-
- If copying a register CLASS in MODE to X requires an intermediate or scratch
- register, `SECONDARY_OUTPUT_RELOAD_CLASS' should be defined to return the
- largest register class required. If the requirements for input and output
- reloads are the same, the macro `SECONDARY_RELOAD_CLASS' should be used
- instead of defining both macros identically.
-
- The values returned by these macros are often `GENERAL_REGS'. Return
- `NO_REGS' if no spare register is needed; i.e., if X can be directly copied
- to or from a register of CLASS in MODE without requiring a scratch register.
- Do not define this macro if it would always return `NO_REGS'.
-
- If a scratch register is required (either with or without an intermediate
- register), you should define patterns for `reload_inM' or `reload_outM', as
- required. These patterns, which will normally be implemented with a
- `define_expand', should be similar to the `movM' patterns, except that
- operand 2 is the scratch register.
-
- Define constraints for the reload register and scratch register that contain
- a single register class. If the original reload register (whose class is
- CLASS) can meet the constraint given in the pattern, the value returned by
- these macros is used for the class of the scratch register. Otherwise, two
- additional reload registers are required. Their classes are obtained from
- the constraints in the insn pattern.
-
- X might be a pseudo-register or a `subreg' of a pseudo-register, which could
- either be in a hard register or in memory. Use `true_regnum' to find out;
- it will return -1 if the pseudo is in memory and the hard register number if
- it is in a register.
-
- These macros should not be used in the case where a particular class of
- registers can only be copied to memory and not to another class of
- registers. In that case, secondary reload registers are not needed and
- would not be helpful. Instead, a stack location must be used to perform the
- copy and the `movM' pattern should use memory as a intermediate storage.
- This case often occurs between floating-point and general registers. */
-/* #define SECONDARY_RELOAD_CLASS(CLASS, MODE, X) */
-/* #define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, X) */
-/* #define SECONDARY_OUTPUT_RELOAD_CLASS(CLASS, MODE, X) */
-
-/* Normally the compiler avoids choosing registers that have been explicitly
- mentioned in the rtl as spill registers (these registers are normally those
- used to pass parameters and return values). However, some machines have so
- few registers of certain classes that there would not be enough registers to
- use as spill registers if this were done.
-
- Define `SMALL_REGISTER_CLASSES' to be an expression with a non-zero value on
- these machines. When this macro has a non-zero value, the compiler allows
- registers explicitly used in the rtl to be used as spill registers but
- avoids extending the lifetime of these registers.
-
- It is always safe to define this macro with a non-zero value, but if you
- unnecessarily define it, you will reduce the amount of optimizations that
- can be performed in some cases. If you do not define this macro with a
- non-zero value when it is required, the compiler will run out of spill
- registers and print a fatal error message. For most machines, you should
- not define this macro at all. */
-/* #define SMALL_REGISTER_CLASSES */
-
-/* A C expression whose value is nonzero if pseudos that have been assigned to
- registers of class CLASS would likely be spilled because registers of CLASS
- are needed for spill registers.
-
- The default value of this macro returns 1 if CLASS has exactly one register
- and zero otherwise. On most machines, this default should be used. Only
- define this macro to some other expression if pseudo allocated by
- `local-alloc.c' end up in memory because their hard registers were needed
- for spill registers. If this macro returns nonzero for those classes, those
- pseudos will only be allocated by `global.c', which knows how to reallocate
- the pseudo to another register. If there would not be another register
- available for reallocation, you should not change the definition of this
- macro since the only effect of such a definition would be to slow down
- register allocation. */
-/* #define CLASS_LIKELY_SPILLED_P(CLASS) */
-
/* A C expression for the maximum number of consecutive registers of
class CLASS needed to hold a value of mode MODE.
the reload pass. */
#define CLASS_MAX_NREGS(CLASS, MODE) HARD_REGNO_NREGS (0, MODE)
-/* If defined, a C expression for a class that contains registers which the
- compiler must always access in a mode that is the same size as the mode in
- which it loaded the register.
-
- For the example, loading 32-bit integer or floating-point objects into
- floating-point registers on the Alpha extends them to 64-bits. Therefore
- loading a 64-bit object and then storing it as a 32-bit object does not
- store the low-order 32-bits, as would be the case for a normal register.
- Therefore, `alpha.h' defines this macro as `FLOAT_REGS'. */
-/* #define CLASS_CANNOT_CHANGE_SIZE */
-
/*}}}*/ \f
-/*{{{ CONSTANTS */
+/*{{{ CONSTANTS. */
/* Return true if a value is inside a range */
#define IN_RANGE(VALUE, LOW, HIGH) \
((C) == 'Q' ? (GET_CODE (VALUE) == MEM && GET_CODE (XEXP (VALUE, 0)) == SYMBOL_REF) : 0)
/*}}}*/ \f
-/*{{{ Basic Stack Layout */
+/*{{{ Basic Stack Layout. */
/* Define this macro if pushing a word onto the stack moves the stack pointer
to a smaller address. */
offsets from the frame pointer. */
#define FRAME_GROWS_DOWNWARD 1
-/* Define this macro if successive arguments to a function occupy decreasing
- addresses on the stack. */
-/* #define ARGS_GROW_DOWNWARD */
-
/* Offset from the frame pointer to the first local variable slot to be
allocated.
argument's address. */
#define FIRST_PARM_OFFSET(FUNDECL) 0
-/* Offset from the stack pointer register to an item dynamically allocated on
- the stack, e.g., by `alloca'.
-
- The default value for this macro is `STACK_POINTER_OFFSET' plus the length
- of the outgoing arguments. The default is correct for most machines. See
- `function.c' for details. */
-/* #define STACK_DYNAMIC_OFFSET(FUNDECL) */
-
-/* A C expression whose value is RTL representing the address in a stack frame
- where the pointer to the caller's frame is stored. Assume that FRAMEADDR is
- an RTL expression for the address of the stack frame itself.
-
- If you don't define this macro, the default is to return the value of
- FRAMEADDR--that is, the stack frame address is also the address of the stack
- word that points to the previous frame. */
-/* #define DYNAMIC_CHAIN_ADDRESS(FRAMEADDR) */
-
-/* A C expression whose value is RTL representing the value of the return
- address for the frame COUNT steps up from the current frame, after the
- prologue. FRAMEADDR is the frame pointer of the COUNT frame, or the frame
- pointer of the COUNT - 1 frame if `RETURN_ADDR_IN_PREVIOUS_FRAME' is
- defined.
-
- The value of the expression must always be the correct address when COUNT is
- zero, but may be `NULL_RTX' if there is not way to determine the return
- address of other frames. */
-/* #define RETURN_ADDR_RTX(COUNT, FRAMEADDR) */
-
-/* Define this if the return address of a particular stack frame is
- accessed from the frame pointer of the previous stack frame. */
-/* #define RETURN_ADDR_IN_PREVIOUS_FRAME */
-
/* A C expression whose value is RTL representing the location of the incoming
return address at the beginning of any function, before the prologue. This
RTL is either a `REG', indicating that the return value is saved in `REG',
debugging information like that provided by DWARF 2. */
#define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (SImode, RETURN_POINTER_REGNUM)
-/* A C expression whose value is an integer giving the offset, in bytes, from
- the value of the stack pointer register to the top of the stack frame at the
- beginning of any function, before the prologue. The top of the frame is
- defined to be the value of the stack pointer in the previous frame, just
- before the call instruction.
-
- You only need to define this macro if you want to support call frame
- debugging information like that provided by DWARF 2. */
-/* #define INCOMING_FRAME_SP_OFFSET */
-
/*}}}*/ \f
/*{{{ Register That Address the Stack Frame. */
-/* On some machines the offset between the frame pointer and starting offset of
- the automatic variables is not known until after register allocation has
- been done (for example, because the saved registers are between these two
- locations). On those machines, define `FRAME_POINTER_REGNUM' the number of
- a special, fixed register to be used internally until the offset is known,
- and define `HARD_FRAME_POINTER_REGNUM' to be actual the hard register number
- used for the frame pointer.
-
- You should define this macro only in the very rare circumstances when it is
- not possible to calculate the offset between the frame pointer and the
- automatic variables until after register allocation has been completed.
- When this macro is defined, you must also indicate in your definition of
- `ELIMINABLE_REGS' how to eliminate `FRAME_POINTER_REGNUM' into either
- `HARD_FRAME_POINTER_REGNUM' or `STACK_POINTER_REGNUM'.
-
- Do not define this macro if it would be the same as `FRAME_POINTER_REGNUM'. */
-/* #define HARD_FRAME_POINTER_REGNUM */
-
/* The register number of the arg pointer register, which is used to access the
function's argument list. On some machines, this is the same as the frame
pointer register. On some machines, the hardware determines which register
arrange to be able to eliminate it. */
#define ARG_POINTER_REGNUM 20
-/* The register number of the return address pointer register, which is used to
- access the current function's return address from the stack. On some
- machines, the return address is not at a fixed offset from the frame pointer
- or stack pointer or argument pointer. This register can be defined to point
- to the return address on the stack, and then be converted by
- `ELIMINABLE_REGS' into either the frame pointer or stack pointer.
-
- Do not define this macro unless there is no other way to get the return
- address from the stack. */
-/* #define RETURN_ADDRESS_POINTER_REGNUM */
-
-/* If the static chain is passed in memory, these macros provide rtx giving
- `mem' expressions that denote where they are stored. `STATIC_CHAIN' and
- `STATIC_CHAIN_INCOMING' give the locations as seen by the calling and called
- functions, respectively. Often the former will be at an offset from the
- stack pointer and the latter at an offset from the frame pointer.
-
- The variables `stack_pointer_rtx', `frame_pointer_rtx', and
- `arg_pointer_rtx' will have been initialized prior to the use of these
- macros and should be used to refer to those items.
-
- If the static chain is passed in a register, the two previous
- macros should be defined instead. */
-/* #define STATIC_CHAIN */
-/* #define STATIC_CHAIN_INCOMING */
-
/*}}}*/ \f
-/*{{{ Eliminating the Frame Pointer and the Arg Pointer */
+/*{{{ Eliminating the Frame Pointer and the Arg Pointer. */
/* A C expression which is nonzero if a function must have and use a frame
pointer. This expression is evaluated in the reload pass. If its value is
#define FRAME_POINTER_REQUIRED \
(flag_omit_frame_pointer == 0 || current_function_pretend_args_size > 0)
-/* A C statement to store in the variable DEPTH_VAR the difference between the
- frame pointer and the stack pointer values immediately after the function
- prologue. The value would be computed from information such as the result
- of `get_frame_size ()' and the tables of registers `regs_ever_live' and
- `call_used_regs'.
-
- If `ELIMINABLE_REGS' is defined, this macro will be not be used and need not
- be defined. Otherwise, it must be defined even if `FRAME_POINTER_REQUIRED'
- is defined to always be true; in that case, you may set DEPTH-VAR to
- anything. */
-/* #define INITIAL_FRAME_POINTER_OFFSET(DEPTH_VAR) */
-
/* If defined, this macro specifies a table of register pairs used to eliminate
unneeded registers that point into the stack frame. If it is not defined,
the only elimination attempted by the compiler is to replace references to
Note that the elimination of the argument pointer with the stack pointer is
specified first since that is the preferred elimination. */
-#define ELIMINABLE_REGS \
-{ \
- {ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
- {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
- {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM} \
+#define ELIMINABLE_REGS \
+{ \
+ {ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
+ {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
+ {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM} \
}
/* A C expression that returns non-zero if the compiler is allowed to try to
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
(OFFSET) = fr30_compute_frame_size (FROM, TO)
-/* Define this macro if the `longjmp' function restores registers from the
- stack frames, rather than from those saved specifically by `setjmp'.
- Certain quantities must not be kept in registers across a call to `setjmp'
- on such machines. */
-/* #define LONGJMP_RESTORE_FROM_STACK */
-
/*}}}*/ \f
-/*{{{ Passing Function Arguments on the Stack */
+/*{{{ Passing Function Arguments on the Stack. */
/* Define this macro if an argument declared in a prototype as an integral type
smaller than `int' should actually be passed as an `int'. In addition to
on certain machines. */
#define PROMOTE_PROTOTYPES 1
-/* A C expression that is the number of bytes actually pushed onto the stack
- when an instruction attempts to push NPUSHED bytes.
-
- If the target machine does not have a push instruction, do not define this
- macro. That directs GNU CC to use an alternate strategy: to allocate the
- entire argument block and then store the arguments into it.
-
- On some machines, the definition
-
- #define PUSH_ROUNDING(BYTES) (BYTES)
-
- will suffice. But on other machines, instructions that appear to push one
- byte actually push two bytes in an attempt to maintain alignment. Then the
- definition should be
-
- #define PUSH_ROUNDING(BYTES) (((BYTES) + 1) & ~1) */
-/* #define PUSH_ROUNDING(NPUSHED) */
-
/* If defined, the maximum amount of space required for outgoing arguments will
be computed and placed into the variable
`current_function_outgoing_args_size'. No space will be pushed onto the
proper. */
#define ACCUMULATE_OUTGOING_ARGS
-/* Define this macro if functions should assume that stack space has been
- allocated for arguments even when their values are passed in registers.
-
- The value of this macro is the size, in bytes, of the area reserved for
- arguments passed in registers for the function represented by FNDECL.
-
- This space can be allocated by the caller, or be a part of the
- machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE' says
- which. */
-/* #define REG_PARM_STACK_SPACE(FNDECL) */
-
-/* Define these macros in addition to the one above if functions might allocate
- stack space for arguments even when their values are passed in registers.
- These should be used when the stack space allocated for arguments in
- registers is not a simple constant independent of the function declaration.
-
- The value of the first macro is the size, in bytes, of the area that we
- should initially assume would be reserved for arguments passed in registers.
-
- The value of the second macro is the actual size, in bytes, of the area that
- will be reserved for arguments passed in registers. This takes two
- arguments: an integer representing the number of bytes of fixed sized
- arguments on the stack, and a tree representing the number of bytes of
- variable sized arguments on the stack.
-
- When these macros are defined, `REG_PARM_STACK_SPACE' will only be called
- for libcall functions, the current function, or for a function being called
- when it is known that such stack space must be allocated. In each case this
- value can be easily computed.
-
- When deciding whether a called function needs such stack space, and how much
- space to reserve, GNU CC uses these two macros instead of
- `REG_PARM_STACK_SPACE'. */
-/* #define MAYBE_REG_PARM_STACK_SPACE */
-/* #define FINAL_REG_PARM_STACK_SPACE(CONST_SIZE, VAR_SIZE) */
-
-/* Define this if it is the responsibility of the caller to allocate the area
- reserved for arguments passed in registers.
-
- If `ACCUMULATE_OUTGOING_ARGS' is defined, this macro controls whether the
- space for these arguments counts in the value of
- `current_function_outgoing_args_size'. */
-/* #define OUTGOING_REG_PARM_STACK_SPACE */
-
-/* Define this macro if `REG_PARM_STACK_SPACE' is defined, but the stack
- parameters don't skip the area specified by it.
-
- Normally, when a parameter is not passed in registers, it is placed on the
- stack beyond the `REG_PARM_STACK_SPACE' area. Defining this macro
- suppresses this behavior and causes the parameter to be passed on the stack
- in its natural location. */
-/* #define STACK_PARMS_IN_REG_PARM_AREA */
-
/* A C expression that should indicate the number of bytes of its own arguments
that a function pops on returning, or 0 if the function pops no arguments
and the caller must therefore pop them all after the function returns.
fr30_va_arg (valist, type)
/*}}}*/ \f
-/*{{{ Function Arguments in Registers */
+/*{{{ Function Arguments in Registers. */
/* Nonzero if we do not know how to pass TYPE solely in registers.
We cannot do so in the following cases:
#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) \
MUST_PASS_IN_STACK (MODE, TYPE)
-/* If defined, a C expression that indicates when it is more
- desirable to keep an argument passed by invisible reference as a
- reference, rather than copying it to a pseudo register. */
-/* #define FUNCTION_ARG_KEEP_AS_REFERENCE(CUM, MODE, TYPE, NAMED) */
-
-/* If defined, a C expression that indicates when it is the called function's
- responsibility to make a copy of arguments passed by invisible reference.
- Normally, the caller makes a copy and passes the address of the copy to the
- routine being called. When FUNCTION_ARG_CALLEE_COPIES is defined and is
- nonzero, the caller does not make a copy. Instead, it passes a pointer to
- the "live" value. The called function must not modify this value. If it
- can be determined that the value won't be modified, it need not make a copy;
- otherwise a copy must be made. */
-/* #define FUNCTION_ARG_CALLEE_COPIES(CUM, MODE, TYPE, NAMED) */
-
-/* If defined, a C expression that indicates when it is more desirable to keep
- an argument passed by invisible reference as a reference, rather than
- copying it to a pseudo register. */
-/* #define FUNCTION_ARG_KEEP_AS_REFERENCE(CUM, MODE, TYPE, NAMED) */
-
/* A C statement (sans semicolon) for initializing the variable CUM for the
state at the beginning of the argument list. The variable has type
`CUMULATIVE_ARGS'. The value of FNTYPE is the tree node for the data type
FNTYPE is nonzero, but never both of them at once. */
#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT) (CUM) = 0
-/* Like `INIT_CUMULATIVE_ARGS' but overrides it for the purposes of finding the
- arguments for the function being compiled. If this macro is undefined,
- `INIT_CUMULATIVE_ARGS' is used instead.
-
- The value passed for LIBNAME is always 0, since library routines with
- special calling conventions are never compiled with GNU CC. The argument
- LIBNAME exists for symmetry with `INIT_CUMULATIVE_ARGS'. */
-/* #define INIT_CUMULATIVE_INCOMING_ARGS(CUM, FNTYPE, LIBNAME) */
-
/* A C statement (sans semicolon) to update the summarizer variable CUM to
advance past an argument in the argument list. The values MODE, TYPE and
NAMED describe that argument. Once this is done, the variable CUM is
#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
(CUM) += (NAMED) * fr30_num_arg_regs (MODE, TYPE)
-/* If defined, a C expression which determines whether, and in which direction,
- to pad out an argument with extra space. The value should be of type `enum
- direction': either `upward' to pad above the argument, `downward' to pad
- below, or `none' to inhibit padding.
-
- The *amount* of padding is always just enough to reach the next multiple of
- `FUNCTION_ARG_BOUNDARY'; this macro does not control it.
-
- This macro has a default definition which is right for most systems. For
- little-endian machines, the default is to pad upward. For big-endian
- machines, the default is to pad downward for an argument of constant size
- shorter than an `int', and upward otherwise. */
-/* #define FUNCTION_ARG_PADDING(MODE, TYPE) */
-
-/* If defined, a C expression that gives the alignment boundary, in bits, of an
- argument with the specified mode and type. If it is not defined,
- `PARM_BOUNDARY' is used for all arguments. */
-/* #define FUNCTION_ARG_BOUNDARY(MODE, TYPE) */
-
/* A C expression that is nonzero if REGNO is the number of a hard register in
which function arguments are sometimes passed. This does *not* include
implicit arguments such as the static chain and the structure-value address.
((REGNO) >= FIRST_ARG_REGNUM && ((REGNO) < FIRST_ARG_REGNUM + FR30_NUM_ARG_REGS))
/*}}}*/ \f
-/*{{{ How Scalar Function Values are Returned */
-
-/* Define this macro if `-traditional' should not cause functions declared to
- return `float' to convert the value to `double'. */
-/* #define TRADITIONAL_RETURN_FLOAT */
+/*{{{ How Scalar Function Values are Returned. */
/* A C expression to create an RTX representing the place where a function
returns a value of data type VALTYPE. VALTYPE is a tree node representing a
#define FUNCTION_VALUE_REGNO_P(REGNO) ((REGNO) == RETURN_VALUE_REGNUM)
-/* Define this macro if `untyped_call' and `untyped_return' need more space
- than is implied by `FUNCTION_VALUE_REGNO_P' for saving and restoring an
- arbitrary return value. */
-/* #define APPLY_RESULT_SIZE */
-
/*}}}*/ \f
-/*{{{ How Large Values are Returned */
-
-/* A C expression which can inhibit the returning of certain function values in
- registers, based on the type of value. A nonzero value says to return the
- function value in memory, just as large structures are always returned.
- Here TYPE will be a C expression of type `tree', representing the data type
- of the value.
-
- Note that values of mode `BLKmode' must be explicitly handled by this macro.
- Also, the option `-fpcc-struct-return' takes effect regardless of this
- macro. On most systems, it is possible to leave the macro undefined; this
- causes a default definition to be used, whose value is the constant 1 for
- `BLKmode' values, and 0 otherwise.
-
- Do not use this macro to indicate that structures and unions should always
- be returned in memory. You should instead use `DEFAULT_PCC_STRUCT_RETURN'
- to indicate this. */
-/* #define RETURN_IN_MEMORY(TYPE) */
+/*{{{ How Large Values are Returned. */
/* Define this macro to be 1 if all structure and union return values must be
in memory. Since this results in slower code, this should be defined only
If not defined, this defaults to the value 1. */
#define DEFAULT_PCC_STRUCT_RETURN 1
-/* If the structure value address is passed in a register, then
- `STRUCT_VALUE_REGNUM' should be the number of that register. */
-/* #define STRUCT_VALUE_REGNUM */
-
/* If the structure value address is not passed in a register, define
`STRUCT_VALUE' as an expression returning an RTX for the place where the
address is passed. If it returns 0, the address is passed as an "invisible"
first argument. */
#define STRUCT_VALUE 0
-/* On some architectures the place where the structure value address is found
- by the called function is not the same place that the caller put it. This
- can be due to register windows, or it could be because the function prologue
- moves it to a different place.
-
- If the incoming location of the structure value address is in a register,
- define this macro as the register number. */
-/* #define STRUCT_VALUE_INCOMING_REGNUM */
-
-/* If the incoming location is not a register, then you should define
- `STRUCT_VALUE_INCOMING' as an expression for an RTX for where the called
- function should find the value. If it should find the value on the stack,
- define this to create a `mem' which refers to the frame pointer. A
- definition of 0 means that the address is passed as an "invisible" first
- argument. */
-/* #define STRUCT_VALUE_INCOMING */
-
-/* Define this macro if the usual system convention on the target machine for
- returning structures and unions is for the called function to return the
- address of a static variable containing the value.
-
- Do not define this if the usual system convention is for the caller to pass
- an address to the subroutine.
-
- This macro has effect in `-fpcc-struct-return' mode, but it does nothing
- when you use `-freg-struct-return' mode. */
-/* #define PCC_STATIC_STRUCT_RETURN */
-
-/*}}}*/ \f
-/*{{{ Caller-Saves Register Allocation */
-
-/* Define this macro if function calls on the target machine do not preserve
- any registers; in other words, if `CALL_USED_REGISTERS' has 1 for all
- registers. This macro enables `-fcaller-saves' by default. Eventually that
- option will be enabled by default on all machines and both the option and
- this macro will be eliminated. */
-/* #define DEFAULT_CALLER_SAVES */
-
-/* A C expression to determine whether it is worthwhile to consider placing a
- pseudo-register in a call-clobbered hard register and saving and restoring
- it around each function call. The expression should be 1 when this is worth
- doing, and 0 otherwise.
-
- If you don't define this macro, a default is used which is good on most
- machines: `4 * CALLS < REFS'. */
-/* #define CALLER_SAVE_PROFITABLE(REFS, CALLS) */
-
-/*}}}*/ \f
-/*{{{ Function Entry and Exit */
-
-/* A C compound statement that outputs the assembler code for entry to a
- function. The prologue is responsible for setting up the stack frame,
- initializing the frame pointer register, saving registers that must be
- saved, and allocating SIZE additional bytes of storage for the local
- variables. SIZE is an integer. FILE is a stdio stream to which the
- assembler code should be output.
-
- The label for the beginning of the function need not be output by this
- macro. That has already been done when the macro is run.
-
- To determine which registers to save, the macro can refer to the array
- `regs_ever_live': element R is nonzero if hard register R is used anywhere
- within the function. This implies the function prologue should save
- register R, provided it is not one of the call-used registers.
- (`FUNCTION_EPILOGUE' must likewise use `regs_ever_live'.)
-
- On machines that have "register windows", the function entry code does not
- save on the stack the registers that are in the windows, even if they are
- supposed to be preserved by function calls; instead it takes appropriate
- steps to "push" the register stack, if any non-call-used registers are used
- in the function.
-
- On machines where functions may or may not have frame-pointers, the function
- entry code must vary accordingly; it must set up the frame pointer if one is
- wanted, and not otherwise. To determine whether a frame pointer is in
- wanted, the macro can refer to the variable `frame_pointer_needed'. The
- variable's value will be 1 at run time in a function that needs a frame
- pointer. *Note Elimination::.
-
- The function entry code is responsible for allocating any stack space
- required for the function. This stack space consists of the regions listed
- below. In most cases, these regions are allocated in the order listed, with
- the last listed region closest to the top of the stack (the lowest address
- if `STACK_GROWS_DOWNWARD' is defined, and the highest address if it is not
- defined). You can use a different order for a machine if doing so is more
- convenient or required for compatibility reasons. Except in cases where
- required by standard or by a debugger, there is no reason why the stack
- layout used by GCC need agree with that used by other compilers for a
- machine.
-
- * A region of `current_function_pretend_args_size' bytes of
- uninitialized space just underneath the first argument
- arriving on the stack. (This may not be at the very start of
- the allocated stack region if the calling sequence has pushed
- anything else since pushing the stack arguments. But
- usually, on such machines, nothing else has been pushed yet,
- because the function prologue itself does all the pushing.)
- This region is used on machines where an argument may be
- passed partly in registers and partly in memory, and, in some
- cases to support the features in `varargs.h' and `stdargs.h'.
-
- * An area of memory used to save certain registers used by the
- function. The size of this area, which may also include
- space for such things as the return address and pointers to
- previous stack frames, is machine-specific and usually
- depends on which registers have been used in the function.
- Machines with register windows often do not require a save
- area.
-
- * A region of at least SIZE bytes, possibly rounded up to an
- allocation boundary, to contain the local variables of the
- function. On some machines, this region and the save area
- may occur in the opposite order, with the save area closer to
- the top of the stack.
-
- * Optionally, when `ACCUMULATE_OUTGOING_ARGS' is defined, a
- region of `current_function_outgoing_args_size' bytes to be
- used for outgoing argument lists of the function.
-
- Normally, it is necessary for the macros `FUNCTION_PROLOGUE' and
- `FUNCTION_EPILOGUE' to treat leaf functions specially. The C variable
- `leaf_function' is nonzero for such a function. */
-/* #define FUNCTION_PROLOGUE(FILE, SIZE) */
-
-/* Define this macro as a C expression that is nonzero if the return
- instruction or the function epilogue ignores the value of the stack pointer;
- in other words, if it is safe to delete an instruction to adjust the stack
- pointer before a return from the function.
-
- Note that this macro's value is relevant only for functions for which frame
- pointers are maintained. It is never safe to delete a final stack
- adjustment in a function that has no frame pointer, and the compiler knows
- this regardless of `EXIT_IGNORE_STACK'. */
-/* #define EXIT_IGNORE_STACK */
-
-/* Define this macro as a C expression that is nonzero for registers
- are used by the epilogue or the `return' pattern. The stack and
- frame pointer registers are already be assumed to be used as
- needed. */
-/* #define EPILOGUE_USES(REGNO) */
-
-/* A C compound statement that outputs the assembler code for exit from a
- function. The epilogue is responsible for restoring the saved registers and
- stack pointer to their values when the function was called, and returning
- control to the caller. This macro takes the same arguments as the macro
- `FUNCTION_PROLOGUE', and the registers to restore are determined from
- `regs_ever_live' and `CALL_USED_REGISTERS' in the same way.
-
- On some machines, there is a single instruction that does all the work of
- returning from the function. On these machines, give that instruction the
- name `return' and do not define the macro `FUNCTION_EPILOGUE' at all.
-
- Do not define a pattern named `return' if you want the `FUNCTION_EPILOGUE'
- to be used. If you want the target switches to control whether return
- instructions or epilogues are used, define a `return' pattern with a
- validity condition that tests the target switches appropriately. If the
- `return' pattern's validity condition is false, epilogues will be used.
-
- On machines where functions may or may not have frame-pointers, the function
- exit code must vary accordingly. Sometimes the code for these two cases is
- completely different. To determine whether a frame pointer is wanted, the
- macro can refer to the variable `frame_pointer_needed'. The variable's
- value will be 1 when compiling a function that needs a frame pointer.
-
- Normally, `FUNCTION_PROLOGUE' and `FUNCTION_EPILOGUE' must treat leaf
- functions specially. The C variable `leaf_function' is nonzero for such a
- function.
-
- On some machines, some functions pop their arguments on exit while others
- leave that for the caller to do. For example, the 68020 when given `-mrtd'
- pops arguments in functions that take a fixed number of arguments.
-
- Your definition of the macro `RETURN_POPS_ARGS' decides which functions pop
- their own arguments. `FUNCTION_EPILOGUE' needs to know what was decided.
- The variable that is called `current_function_pops_args' is the number of
- bytes of its arguments that a function should pop. *Note Scalar Return::. */
-/* #define FUNCTION_EPILOGUE(FILE, SIZE) */
-
-/* Define this macro if the function epilogue contains delay slots to which
- instructions from the rest of the function can be "moved". The definition
- should be a C expression whose value is an integer representing the number
- of delay slots there. */
-/* #define DELAY_SLOTS_FOR_EPILOGUE */
-
-/* A C expression that returns 1 if INSN can be placed in delay slot number N
- of the epilogue.
-
- The argument N is an integer which identifies the delay slot now being
- considered (since different slots may have different rules of eligibility).
- It is never negative and is always less than the number of epilogue delay
- slots (what `DELAY_SLOTS_FOR_EPILOGUE' returns). If you reject a particular
- insn for a given delay slot, in principle, it may be reconsidered for a
- subsequent delay slot. Also, other insns may (at least in principle) be
- considered for the so far unfilled delay slot.
-
- The insns accepted to fill the epilogue delay slots are put in an
- RTL list made with `insn_list' objects, stored in the variable
- `current_function_epilogue_delay_list'. The insn for the first
- delay slot comes first in the list. Your definition of the macro
- `FUNCTION_EPILOGUE' should fill the delay slots by outputting the
- insns in this list, usually by calling `final_scan_insn'.
-
- You need not define this macro if you did not define
- `DELAY_SLOTS_FOR_EPILOGUE'. */
-/* #define ELIGIBLE_FOR_EPILOGUE_DELAY(INSN, N) */
-
-/* A C compound statement that outputs the assembler code for a thunk function,
- used to implement C++ virtual function calls with multiple inheritance. The
- thunk acts as a wrapper around a virtual function, adjusting the implicit
- object parameter before handing control off to the real function.
-
- First, emit code to add the integer DELTA to the location that contains the
- incoming first argument. Assume that this argument contains a pointer, and
- is the one used to pass the `this' pointer in C++. This is the incoming
- argument *before* the function prologue, e.g. `%o0' on a sparc. The
- addition must preserve the values of all other incoming arguments.
-
- After the addition, emit code to jump to FUNCTION, which is a
- `FUNCTION_DECL'. This is a direct pure jump, not a call, and does not touch
- the return address. Hence returning from FUNCTION will return to whoever
- called the current `thunk'.
-
- The effect must be as if FUNCTION had been called directly with the adjusted
- first argument. This macro is responsible for emitting all of the code for
- a thunk function; `FUNCTION_PROLOGUE' and `FUNCTION_EPILOGUE' are not
- invoked.
-
- The THUNK_FNDECL is redundant. (DELTA and FUNCTION have already been
- extracted from it.) It might possibly be useful on some targets, but
- probably not.
-
- If you do not define this macro, the target-independent code in the C++
- frontend will generate a less efficient heavyweight thunk that calls
- FUNCTION instead of jumping to it. The generic approach does not support
- varargs. */
-/* #define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) */
-
/*}}}*/ \f
/*{{{ Generating Code for Profiling. */
fprintf (FILE, ".word\tLP%d\n", LABELNO); \
}
-/* Define this macro if the code for function profiling should come before the
- function prologue. Normally, the profiling code comes after. */
-/* #define PROFILE_BEFORE_PROLOGUE */
-
-/* A C statement or compound statement to output to FILE some assembler code to
- initialize basic-block profiling for the current object module. The global
- compile flag `profile_block_flag' distingishes two profile modes.
-
- profile_block_flag != 2'
- Output code to call the subroutine `__bb_init_func' once per
- object module, passing it as its sole argument the address of
- a block allocated in the object module.
-
- The name of the block is a local symbol made with this
- statement:
-
- ASM_GENERATE_INTERNAL_LABEL (BUFFER, "LPBX", 0);
-
- Of course, since you are writing the definition of
- `ASM_GENERATE_INTERNAL_LABEL' as well as that of this macro,
- you can take a short cut in the definition of this macro and
- use the name that you know will result.
-
- The first word of this block is a flag which will be nonzero
- if the object module has already been initialized. So test
- this word first, and do not call `__bb_init_func' if the flag
- is nonzero. BLOCK_OR_LABEL contains a unique number which
- may be used to generate a label as a branch destination when
- `__bb_init_func' will not be called.
-
- Described in assembler language, the code to be output looks
- like:
-
- cmp (LPBX0),0
- bne local_label
- parameter1 <- LPBX0
- call __bb_init_func
- local_label:
-
- profile_block_flag == 2'
- Output code to call the subroutine `__bb_init_trace_func' and
- pass two parameters to it. The first parameter is the same as
- for `__bb_init_func'. The second parameter is the number of
- the first basic block of the function as given by
- BLOCK_OR_LABEL. Note that `__bb_init_trace_func' has to be
- called, even if the object module has been initialized
- already.
-
- Described in assembler language, the code to be output looks
- like:
- parameter1 <- LPBX0
- parameter2 <- BLOCK_OR_LABEL
- call __bb_init_trace_func */
-/* #define FUNCTION_BLOCK_PROFILER (FILE, LABELNO) */
-
-/* A C statement or compound statement to output to FILE some assembler code to
- increment the count associated with the basic block number BLOCKNO. The
- global compile flag `profile_block_flag' distingishes two profile modes.
-
- profile_block_flag != 2'
- Output code to increment the counter directly. Basic blocks
- are numbered separately from zero within each compilation.
- The count associated with block number BLOCKNO is at index
- BLOCKNO in a vector of words; the name of this array is a
- local symbol made with this statement:
-
- ASM_GENERATE_INTERNAL_LABEL (BUFFER, "LPBX", 2);
-
- Of course, since you are writing the definition of
- `ASM_GENERATE_INTERNAL_LABEL' as well as that of this macro,
- you can take a short cut in the definition of this macro and
- use the name that you know will result.
-
- Described in assembler language, the code to be output looks
- like:
-
- inc (LPBX2+4*BLOCKNO)
-
- profile_block_flag == 2'
- Output code to initialize the global structure `__bb' and
- call the function `__bb_trace_func', which will increment the
- counter.
-
- `__bb' consists of two words. In the first word, the current
- basic block number, as given by BLOCKNO, has to be stored. In
- the second word, the address of a block allocated in the
- object module has to be stored. The address is given by the
- label created with this statement:
-
- ASM_GENERATE_INTERNAL_LABEL (BUFFER, "LPBX", 0);
-
- Described in assembler language, the code to be output looks
- like:
- move BLOCKNO -> (__bb)
- move LPBX0 -> (__bb+4)
- call __bb_trace_func */
-/* #define BLOCK_PROFILER(FILE, BLOCKNO) */
-
-/* A C statement or compound statement to output to FILE assembler
- code to call function `__bb_trace_ret'. The assembler code should
- only be output if the global compile flag `profile_block_flag' ==
- 2. This macro has to be used at every place where code for
- returning from a function is generated (e.g. `FUNCTION_EPILOGUE').
- Although you have to write the definition of `FUNCTION_EPILOGUE'
- as well, you have to define this macro to tell the compiler, that
- the proper call to `__bb_trace_ret' is produced. */
-/* #define FUNCTION_BLOCK_PROFILER_EXIT(FILE) */
-
-/* A C statement or compound statement to save all registers, which may be
- clobbered by a function call, including condition codes. The `asm'
- statement will be mostly likely needed to handle this task. Local labels in
- the assembler code can be concatenated with the string ID, to obtain a
- unique lable name.
-
- Registers or condition codes clobbered by `FUNCTION_PROLOGUE' or
- `FUNCTION_EPILOGUE' must be saved in the macros `FUNCTION_BLOCK_PROFILER',
- `FUNCTION_BLOCK_PROFILER_EXIT' and `BLOCK_PROFILER' prior calling
- `__bb_init_trace_func', `__bb_trace_ret' and `__bb_trace_func' respectively. */
-/* #define MACHINE_STATE_SAVE(ID) */
-
-/* A C statement or compound statement to restore all registers, including
- condition codes, saved by `MACHINE_STATE_SAVE'.
-
- Registers or condition codes clobbered by `FUNCTION_PROLOGUE' or
- `FUNCTION_EPILOGUE' must be restored in the macros
- `FUNCTION_BLOCK_PROFILER', `FUNCTION_BLOCK_PROFILER_EXIT' and
- `BLOCK_PROFILER' after calling `__bb_init_trace_func', `__bb_trace_ret' and
- `__bb_trace_func' respectively. */
-/* #define MACHINE_STATE_RESTORE(ID) */
-
-/* A C function or functions which are needed in the library to support block
- profiling. */
-/* #define BLOCK_PROFILER_CODE */
-
/*}}}*/ \f
/*{{{ Implementing the VARARGS Macros. */
-/* If defined, is a C expression that produces the machine-specific code for a
- call to `__builtin_saveregs'. This code will be moved to the very beginning
- of the function, before any parameter access are made. The return value of
- this function should be an RTX that contains the value to use as the return
- of `__builtin_saveregs'.
-
- The argument ARGS is a `tree_list' containing the arguments that were passed
- to `__builtin_saveregs'.
-
- If this macro is not defined, the compiler will output an ordinary call to
- the library function `__builtin_saveregs'. */
-/* #define EXPAND_BUILTIN_SAVEREGS(ARGS) */
-
/* This macro offers an alternative to using `__builtin_saveregs' and defining
the macro `EXPAND_BUILTIN_SAVEREGS'. Use it to store the anonymous register
arguments into the stack so that all the arguments appear to have been
fprintf (FILE, "\tjmp\t@%s\n", reg_names [COMPILER_SCRATCH_REGISTER]); \
}
-/* The name of a subroutine to switch to the section in which the trampoline
- template is to be placed. The default is a value of
- `readonly_data_section', which places the trampoline in the section
- containing read-only data. */
-/* #define TRAMPOLINE_SECTION */
-
/* A C expression for the size in bytes of the trampoline, as an integer. */
#define TRAMPOLINE_SIZE 14
-/* Alignment required for trampolines, in bits.
-
- If you don't define this macro, the value of `BIGGEST_ALIGNMENT' is used for
- aligning trampolines. */
-/* #define TRAMPOLINE_ALIGNMENT */
-
/* A C statement to initialize the variable parts of a trampoline. ADDR is an
RTX for the address of the trampoline; FNADDR is an RTX for the address of
the nested function; STATIC_CHAIN is an RTX for the static chain value that
emit_move_insn (gen_rtx (MEM, SImode, plus_constant (ADDR, 8)), FNADDR); \
} while (0);
-/* A C expression to allocate run-time space for a trampoline. The expression
- value should be an RTX representing a memory reference to the space for the
- trampoline.
-
- If this macro is not defined, by default the trampoline is allocated as a
- stack slot. This default is right for most machines. The exceptions are
- machines where it is impossible to execute instructions in the stack area.
- On such machines, you may have to implement a separate stack, using this
- macro in conjunction with `FUNCTION_PROLOGUE' and `FUNCTION_EPILOGUE'.
-
- FP points to a data structure, a `struct function', which describes the
- compilation status of the immediate containing function of the function
- which the trampoline is for. Normally (when `ALLOCATE_TRAMPOLINE' is not
- defined), the stack slot for the trampoline is in the stack frame of this
- containing function. Other allocation strategies probably must do something
- analogous with this information. */
-/* #define ALLOCATE_TRAMPOLINE(FP) */
-
-/* Implementing trampolines is difficult on many machines because they have
- separate instruction and data caches. Writing into a stack location fails
- to clear the memory in the instruction cache, so when the program jumps to
- that location, it executes the old contents.
-
- Here are two possible solutions. One is to clear the relevant parts of the
- instruction cache whenever a trampoline is set up. The other is to make all
- trampolines identical, by having them jump to a standard subroutine. The
- former technique makes trampoline execution faster; the latter makes
- initialization faster.
-
- To clear the instruction cache when a trampoline is initialized, define the
- following macros which describe the shape of the cache. */
-
-/* The total size in bytes of the cache. */
-/* #define INSN_CACHE_SIZE */
-
-/* The length in bytes of each cache line. The cache is divided into cache
- lines which are disjoint slots, each holding a contiguous chunk of data
- fetched from memory. Each time data is brought into the cache, an entire
- line is read at once. The data loaded into a cache line is always aligned
- on a boundary equal to the line size. */
-/* #define INSN_CACHE_LINE_WIDTH */
-
-/* The number of alternative cache lines that can hold any particular memory
- location. */
-/* #define INSN_CACHE_DEPTH */
-
-/* Alternatively, if the machine has system calls or instructions to clear the
- instruction cache directly, you can define the following macro. */
-
-/* If defined, expands to a C expression clearing the *instruction cache* in
- the specified interval. If it is not defined, and the macro INSN_CACHE_SIZE
- is defined, some generic code is generated to clear the cache. The
- definition of this macro would typically be a series of `asm' statements.
- Both BEG and END are both pointer expressions. */
-/* #define CLEAR_INSN_CACHE (BEG, END) */
-
-/* To use a standard subroutine, define the following macro. In addition, you
- must make sure that the instructions in a trampoline fill an entire cache
- line with identical instructions, or else ensure that the beginning of the
- trampoline code is always aligned at the same point in its cache line. Look
- in `m68k.h' as a guide. */
-
-/* Define this macro if trampolines need a special subroutine to do their work.
- The macro should expand to a series of `asm' statements which will be
- compiled with GNU CC. They go in a library function named
- `__transfer_from_trampoline'.
-
- If you need to avoid executing the ordinary prologue code of a compiled C
- function when you jump to the subroutine, you can do so by placing a special
- label of your own in the assembler code. Use one `asm' statement to
- generate an assembler label, and another to make the label global. Then
- trampolines can use that label to jump directly to your special assembler
- code. */
-/* #define TRANSFER_FROM_TRAMPOLINE */
-
-/*}}}*/ \f
-/*{{{ Implicit Calls to Library Routines */
-
-/* A C string constant giving the name of the function to call for
- multiplication of one signed full-word by another. If you do not define
- this macro, the default name is used, which is `__mulsi3', a function
- defined in `libgcc.a'. */
-/* #define MULSI3_LIBCALL */
-
-/* A C string constant giving the name of the function to call for division of
- one signed full-word by another. If you do not define this macro, the
- default name is used, which is `__divsi3', a function defined in `libgcc.a'. */
-/* #define DIVSI3_LIBCALL */
-
-/* A C string constant giving the name of the function to call for division of
- one unsigned full-word by another. If you do not define this macro, the
- default name is used, which is `__udivsi3', a function defined in
- `libgcc.a'. */
-/* #define UDIVSI3_LIBCALL */
-
-/* A C string constant giving the name of the function to call for the
- remainder in division of one signed full-word by another. If you do not
- define this macro, the default name is used, which is `__modsi3', a function
- defined in `libgcc.a'. */
-/* #define MODSI3_LIBCALL */
-
-/* A C string constant giving the name of the function to call for the
- remainder in division of one unsigned full-word by another. If you do not
- define this macro, the default name is used, which is `__umodsi3', a
- function defined in `libgcc.a'. */
-/* #define UMODSI3_LIBCALL */
-
-/* A C string constant giving the name of the function to call for
- multiplication of one signed double-word by another. If you do not define
- this macro, the default name is used, which is `__muldi3', a function
- defined in `libgcc.a'. */
-/* #define MULDI3_LIBCALL */
-
-/* A C string constant giving the name of the function to call for division of
- one signed double-word by another. If you do not define this macro, the
- default name is used, which is `__divdi3', a function defined in `libgcc.a'. */
-/* #define DIVDI3_LIBCALL */
-
-/* A C string constant giving the name of the function to call for division of
- one unsigned full-word by another. If you do not define this macro, the
- default name is used, which is `__udivdi3', a function defined in
- `libgcc.a'. */
-/* #define UDIVDI3_LIBCALL */
-
-/* A C string constant giving the name of the function to call for the
- remainder in division of one signed double-word by another. If you do not
- define this macro, the default name is used, which is `__moddi3', a function
- defined in `libgcc.a'. */
-/* #define MODDI3_LIBCALL */
-
-/* A C string constant giving the name of the function to call for the
- remainder in division of one unsigned full-word by another. If you do not
- define this macro, the default name is used, which is `__umoddi3', a
- function defined in `libgcc.a'. */
-/* #define UMODDI3_LIBCALL */
-
-/* Define this macro as a C statement that declares additional library routines
- renames existing ones. `init_optabs' calls this macro after initializing all
- the normal library routines. */
-/* #define INIT_TARGET_OPTABS */
-
-/* The value of `EDOM' on the target machine, as a C integer constant
- expression. If you don't define this macro, GNU CC does not attempt to
- deposit the value of `EDOM' into `errno' directly. Look in
- `/usr/include/errno.h' to find the value of `EDOM' on your system.
-
- If you do not define `TARGET_EDOM', then compiled code reports domain errors
- by calling the library function and letting it report the error. If
- mathematical functions on your system use `matherr' when there is an error,
- then you should leave `TARGET_EDOM' undefined so that `matherr' is used
- normally. */
-/* #define TARGET_EDOM */
-
-/* Define this macro as a C expression to create an rtl expression that refers
- to the global "variable" `errno'. (On certain systems, `errno' may not
- actually be a variable.) If you don't define this macro, a reasonable
- default is used. */
-/* #define GEN_ERRNO_RTX */
-
-/* Define this macro if GNU CC should generate calls to the System V (and ANSI
- C) library functions `memcpy' and `memset' rather than the BSD functions
- `bcopy' and `bzero'.
-
- Defined in svr4.h. */
-#define TARGET_MEM_FUNCTIONS
-
-/* Define this macro if only `float' arguments cannot be passed to library
- routines (so they must be converted to `double'). This macro affects both
- how library calls are generated and how the library routines in `libgcc1.c'
- accept their arguments. It is useful on machines where floating and fixed
- point arguments are passed differently, such as the i860. */
-/* #define LIBGCC_NEEDS_DOUBLE */
-
-/* Define this macro to override the type used by the library routines to pick
- up arguments of type `float'. (By default, they use a union of `float' and
- `int'.)
-
- The obvious choice would be `float'--but that won't work with traditional C
- compilers that expect all arguments declared as `float' to arrive as
- `double'. To avoid this conversion, the library routines ask for the value
- as some other type and then treat it as a `float'.
-
- On some systems, no other type will work for this. For these systems, you
- must use `LIBGCC_NEEDS_DOUBLE' instead, to force conversion of the values
- `double' before they are passed. */
-/* #define FLOAT_ARG_TYPE */
-
-/* Define this macro to override the way library routines redesignate a `float'
- argument as a `float' instead of the type it was passed as. The default is
- an expression which takes the `float' field of the union. */
-/* #define FLOATIFY(PASSED_VALUE) */
-
-/* Define this macro to override the type used by the library routines to
- return values that ought to have type `float'. (By default, they use
- `int'.)
-
- The obvious choice would be `float'--but that won't work with traditional C
- compilers gratuitously convert values declared as `float' into `double'. */
-/* #define FLOAT_VALUE_TYPE */
-
-/* Define this macro to override the way the value of a `float'-returning
- library routine should be packaged in order to return it. These functions
- are actually declared to return type `FLOAT_VALUE_TYPE' (normally `int').
-
- These values can't be returned as type `float' because traditional C
- compilers would gratuitously convert the value to a `double'.
-
- A local variable named `intify' is always available when the macro `INTIFY'
- is used. It is a union of a `float' field named `f' and a field named `i'
- whose type is `FLOAT_VALUE_TYPE' or `int'.
-
- If you don't define this macro, the default definition works by copying the
- value through that union. */
-/* #define INTIFY(FLOAT_VALUE) */
-
-/* Define this macro as the name of the data type corresponding to `SImode' in
- the system's own C compiler.
-
- You need not define this macro if that type is `long int', as it usually is. */
-/* #define nongcc_SI_type */
-
-/* Define this macro as the name of the data type corresponding to the
- word_mode in the system's own C compiler.
-
- You need not define this macro if that type is `long int', as it usually is. */
-/* #define nongcc_word_type */
-
-/* Define these macros to supply explicit C statements to carry out various
- arithmetic operations on types `float' and `double' in the library routines
- in `libgcc1.c'. See that file for a full list of these macros and their
- arguments.
-
- On most machines, you don't need to define any of these macros, because the
- C compiler that comes with the system takes care of doing them. */
-/* #define perform_... */
-
-/* Define this macro to generate code for Objective C message sending using the
- calling convention of the NeXT system. This calling convention involves
- passing the object, the selector and the method arguments all at once to the
- method-lookup library function.
-
- The default calling convention passes just the object and the selector to
- the lookup function, which returns a pointer to the method. */
-/* #define NEXT_OBJC_RUNTIME */
-
/*}}}*/ \f
-/*{{{ Addressing Modes */
-
-/* Define this macro if the machine supports post-increment addressing. */
-/* #define HAVE_POST_INCREMENT 0 */
-
-/* Similar for other kinds of addressing. */
-/* #define HAVE_PRE_INCREMENT 0 */
-/* #define HAVE_POST_DECREMENT 0 */
-/* #define HAVE_PRE_DECREMENT 0 */
+/*{{{ Addressing Modes. */
/* A C expression that is 1 if the RTX X is a constant which is a valid
address. On most machines, this can be defined as `CONSTANT_P (X)', but a
#define LEGITIMATE_CONSTANT_P(X) 1
/*}}}*/ \f
-/*{{{ Condition Code Status */
-
-/* C code for a data type which is used for declaring the `mdep' component of
- `cc_status'. It defaults to `int'.
-
- This macro is not used on machines that do not use `cc0'. */
-/* #define CC_STATUS_MDEP */
-
-/* A C expression to initialize the `mdep' field to "empty". The default
- definition does nothing, since most machines don't use the field anyway. If
- you want to use the field, you should probably define this macro to
- initialize it.
-
- This macro is not used on machines that do not use `cc0'. */
-/* #define CC_STATUS_MDEP_INIT */
-
-/* A list of names to be used for additional modes for condition code values in
- registers. These names are added to `enum
- machine_mode' and all have class `MODE_CC'. By convention, they should
- start with `CC' and end with `mode'.
-
- You should only define this macro if your machine does not use `cc0' and
- only if additional modes are required. */
-/* #define EXTRA_CC_MODES */
-
-/* Returns a mode from class `MODE_CC' to be used when comparison operation
- code OP is applied to rtx X and Y. For example, on the Sparc,
- `SELECT_CC_MODE' is defined as (see *note Jump Patterns::. for a
- description of the reason for this definition)
-
- #define SELECT_CC_MODE(OP,X,Y) \
- (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
- ? ((OP == EQ || OP == NE) ? CCFPmode : CCFPEmode) \
- : ((GET_CODE (X) == PLUS || GET_CODE (X) == MINUS \
- || GET_CODE (X) == NEG) \
- ? CC_NOOVmode : CCmode))
-
- You need not define this macro if `EXTRA_CC_MODES' is not defined. */
-/* #define SELECT_CC_MODE(OP, X, Y) */
-
-/* One some machines not all possible comparisons are defined, but you can
- convert an invalid comparison into a valid one. For example, the Alpha does
- not have a `GT' comparison, but you can use an `LT' comparison instead and
- swap the order of the operands.
-
- On such machines, define this macro to be a C statement to do any required
- conversions. CODE is the initial comparison code and OP0 and OP1 are the
- left and right operands of the comparison, respectively. You should modify
- CODE, OP0, and OP1 as required.
-
- GNU CC will not assume that the comparison resulting from this macro is
- valid but will see if the resulting insn matches a pattern in the `md' file.
-
- You need not define this macro if it would never change the comparison code
- or operands. */
-/* #define CANONICALIZE_COMPARISON(CODE, OP0, OP1) */
-
-/* A C expression whose value is one if it is always safe to reverse a
- comparison whose mode is MODE. If `SELECT_CC_MODE' can ever return MODE for
- a floating-point inequality comparison, then `REVERSIBLE_CC_MODE (MODE)'
- must be zero.
-
- You need not define this macro if it would always returns zero or if the
- floating-point format is anything other than `IEEE_FLOAT_FORMAT'. For
- example, here is the definition used on the Sparc, where floating-point
- inequality comparisons are always given `CCFPEmode':
-
- #define REVERSIBLE_CC_MODE(MODE) ((MODE) != CCFPEmode) */
-/* #define REVERSIBLE_CC_MODE(MODE) */
-
-/*}}}*/ \f
/*{{{ Describing Relative Costs of Operations */
-/* A part of a C `switch' statement that describes the relative costs of
- constant RTL expressions. It must contain `case' labels for expression
- codes `const_int', `const', `symbol_ref', `label_ref' and `const_double'.
- Each case must ultimately reach a `return' statement to return the relative
- cost of the use of that kind of constant value in an expression. The cost
- may depend on the precise value of the constant, which is available for
- examination in X, and the rtx code of the expression in which it is
- contained, found in OUTER_CODE.
-
- CODE is the expression code--redundant, since it can be obtained with
- `GET_CODE (X)'. */
-/* #define CONST_COSTS(X, CODE, OUTER_CODE) */
-
-/* Like `CONST_COSTS' but applies to nonconstant RTL expressions. This can be
- used, for example, to indicate how costly a multiply instruction is. In
- writing this macro, you can use the construct `COSTS_N_INSNS (N)' to specify
- a cost equal to N fast instructions. OUTER_CODE is the code of the
- expression in which X is contained.
-
- This macro is optional; do not define it if the default cost assumptions are
- adequate for the target machine. */
-/* #define RTX_COSTS(X, CODE, OUTER_CODE) */
-
-/* An expression giving the cost of an addressing mode that contains ADDRESS.
- If not defined, the cost is computed from the ADDRESS expression and the
- `CONST_COSTS' values.
-
- For most CISC machines, the default cost is a good approximation of the true
- cost of the addressing mode. However, on RISC machines, all instructions
- normally have the same length and execution time. Hence all addresses will
- have equal costs.
-
- In cases where more than one form of an address is known, the form with the
- lowest cost will be used. If multiple forms have the same, lowest, cost,
- the one that is the most complex will be used.
-
- For example, suppose an address that is equal to the sum of a register and a
- constant is used twice in the same basic block. When this macro is not
- defined, the address will be computed in a register and memory references
- will be indirect through that register. On machines where the cost of the
- addressing mode containing the sum is no higher than that of a simple
- indirect reference, this will produce an additional instruction and possibly
- require an additional register. Proper specification of this macro
- eliminates this overhead for such machines.
-
- Similar use of this macro is made in strength reduction of loops.
-
- ADDRESS need not be valid as an address. In such a case, the cost is not
- relevant and can be any value; invalid addresses need not be assigned a
- different cost.
-
- On machines where an address involving more than one register is as cheap as
- an address computation involving only one register, defining `ADDRESS_COST'
- to reflect this can cause two registers to be live over a region of code
- where only one would have been if `ADDRESS_COST' were not defined in that
- manner. This effect should be considered in the definition of this macro.
- Equivalent costs should probably only be given to addresses with different
- numbers of registers on machines with lots of registers.
-
- This macro will normally either not be defined or be defined as a constant. */
-/* #define ADDRESS_COST(ADDRESS) */
-
-/* A C expression for the cost of moving data from a register in class FROM to
- one in class TO. The classes are expressed using the enumeration values
- such as `GENERAL_REGS'. A value of 4 is the default; other values are
- interpreted relative to that.
-
- It is not required that the cost always equal 2 when FROM is the same as TO;
- on some machines it is expensive to move between registers if they are not
- general registers.
-
- If reload sees an insn consisting of a single `set' between two hard
- registers, and if `REGISTER_MOVE_COST' applied to their classes returns a
- value of 2, reload does not check to ensure that the constraints of the insn
- are met. Setting a cost of other than 2 will allow reload to verify that
- the constraints are met. You should do this if the `movM' pattern's
- constraints do not allow such copying. */
-/* #define REGISTER_MOVE_COST(FROM, TO) */
-
-/* A C expression for the cost of moving data of mode M between a register and
- memory. A value of 2 is the default; this cost is relative to those in
- `REGISTER_MOVE_COST'.
-
- If moving between registers and memory is more expensive than between two
- registers, you should define this macro to express the relative cost. */
-/* #define MEMORY_MOVE_COST(M,C,I) */
-
-/* A C expression for the cost of a branch instruction. A value of 1 is the
- default; other values are interpreted relative to that. */
-
-/* Here are additional macros which do not specify precise relative costs, but
- only that certain actions are more expensive than GNU CC would ordinarily
- expect. */
-
-/* #define BRANCH_COST */
-
/* Define this macro as a C expression which is nonzero if accessing less than
a word of memory (i.e. a `char' or a `short') is no faster than accessing a
word of memory, i.e., if such access require more than one instruction or if
and likewise for `HImode'. */
#define SLOW_ZERO_EXTEND 0
-/* Define this macro to be the value 1 if unaligned accesses have a cost many
- times greater than aligned accesses, for example if they are emulated in a
- trap handler.
-
- When this macro is non-zero, the compiler will act as if `STRICT_ALIGNMENT'
- were non-zero when generating code for block moves. This can cause
- significantly more instructions to be produced. Therefore, do not set this
- macro non-zero if unaligned accesses only add a cycle or two to the time for
- a memory access.
-
- If the value of this macro is always zero, it need not be defined. */
-/* #define SLOW_UNALIGNED_ACCESS(MODE, ALIGN) */
-
-/* Define this macro to inhibit strength reduction of memory addresses. (On
- some machines, such strength reduction seems to do harm rather than good.) */
-/* #define DONT_REDUCE_ADDR */
-
-/* The number of scalar move insns which should be generated instead of a
- string move insn or a library call. Increasing the value will always make
- code faster, but eventually incurs high cost in increased code size.
-
- If you don't define this, a reasonable default is used. */
-/* #define MOVE_RATIO */
-
-/* Define this macro if it is as good or better to call a constant function
- address than to call an address kept in a register. */
-/* #define NO_FUNCTION_CSE */
-
-/* Define this macro if it is as good or better for a function to call itself
- with an explicit address than to call an address kept in a register. */
-/* #define NO_RECURSIVE_FUNCTION_CSE */
-
-/* A C statement (sans semicolon) to update the integer variable COST based on
- the relationship between INSN that is dependent on DEP_INSN through the
- dependence LINK. The default is to make no adjustment to COST. This can be
- used for example to specify to the scheduler that an output- or
- anti-dependence does not incur the same cost as a data-dependence. */
-/* #define ADJUST_COST(INSN, LINK, DEP_INSN, COST) */
-
-/* A C statement (sans semicolon) to update the integer scheduling
- priority `INSN_PRIORITY(INSN)'. Reduce the priority to execute
- the INSN earlier, increase the priority to execute INSN later.
- Do not define this macro if you do not need to adjust the
- scheduling priorities of insns. */
-/* #define ADJUST_PRIORITY (INSN) */
-
/*}}}*/ \f
/*{{{ Dividing the output into sections. */
`".data"' is right. */
#define DATA_SECTION_ASM_OP ".data"
-/* if defined, a C expression whose value is a string containing the assembler
- operation to identify the following data as shared data. If not defined,
- `DATA_SECTION_ASM_OP' will be used. */
-/* #define SHARED_SECTION_ASM_OP */
-
/* If defined, a C expression whose value is a string containing the
assembler operation to identify the following data as
uninitialized global data. If not defined, and neither
used. */
#define BSS_SECTION_ASM_OP ".bss"
-/* If defined, a C expression whose value is a string containing the
- assembler operation to identify the following data as
- uninitialized global shared data. If not defined, and
- `BSS_SECTION_ASM_OP' is, the latter will be used. */
-/* #define SHARED_BSS_SECTION_ASM_OP */
-
-/* A list of names for sections other than the standard two, which are
- `in_text' and `in_data'. You need not define this macro on a system with no
- other sections (that GCC needs to use).
-
- Defined in svr4.h. */
-/* #define EXTRA_SECTIONS */
-
-/* One or more functions to be defined in `varasm.c'. These functions should
- do jobs analogous to those of `text_section' and `data_section', for your
- additional sections. Do not define this macro if you do not define
- `EXTRA_SECTIONS'.
-
- Defined in svr4.h. */
-/* #define EXTRA_SECTION_FUNCTIONS */
-
-/* On most machines, read-only variables, constants, and jump tables are placed
- in the text section. If this is not the case on your machine, this macro
- should be defined to be the name of a function (either `data_section' or a
- function defined in `EXTRA_SECTIONS') that switches to the section to be
- used for read-only items.
-
- If these items should be placed in the text section, this macro should not
- be defined. */
-/* #define READONLY_DATA_SECTION */
-
-/* A C statement or statements to switch to the appropriate section for output
- of EXP. You can assume that EXP is either a `VAR_DECL' node or a constant
- of some sort. RELOC indicates whether the initial value of EXP requires
- link-time relocations. Select the section by calling `text_section' or one
- of the alternatives for other sections.
-
- Do not define this macro if you put all read-only variables and constants in
- the read-only data section (usually the text section).
-
- Defined in svr4.h. */
-/* #define SELECT_SECTION(EXP, RELOC) */
-
-/* A C statement or statements to switch to the appropriate section for output
- of RTX in mode MODE. You can assume that RTX is some kind of constant in
- RTL. The argument MODE is redundant except in the case of a `const_int'
- rtx. Select the section by calling `text_section' or one of the
- alternatives for other sections.
-
- Do not define this macro if you put all constants in the read-only data
- section.
-
- Defined in svr4.h. */
-/* #define SELECT_RTX_SECTION(MODE, RTX) */
-
-/* Define this macro if jump tables (for `tablejump' insns) should be output in
- the text section, along with the assembler instructions. Otherwise, the
- readonly data section is used.
-
- This macro is irrelevant if there is no separate readonly data section. */
-/* #define JUMP_TABLES_IN_TEXT_SECTION */
-
-/* Define this macro if references to a symbol must be treated differently
- depending on something about the variable or function named by the symbol
- (such as what section it is in).
-
- The macro definition, if any, is executed immediately after the rtl for DECL
- has been created and stored in `DECL_RTL (DECL)'. The value of the rtl will
- be a `mem' whose address is a `symbol_ref'.
-
- The usual thing for this macro to do is to record a flag in the `symbol_ref'
- (such as `SYMBOL_REF_FLAG') or to store a modified name string in the
- `symbol_ref' (if one bit is not enough information). */
-/* #define ENCODE_SECTION_INFO(DECL) */
-
-/* Decode SYM_NAME and store the real name part in VAR, sans the characters
- that encode section info. Define this macro if `ENCODE_SECTION_INFO' alters
- the symbol's name string. */
-/* #define STRIP_NAME_ENCODING(VAR, SYM_NAME) */
-
-/* A C expression which evaluates to true if DECL should be placed
- into a unique section for some target-specific reason. If you do
- not define this macro, the default is `0'. Note that the flag
- `-ffunction-sections' will also cause functions to be placed into
- unique sections.
-
- Defined in svr4.h. */
-/* #define UNIQUE_SECTION_P(DECL) */
-
-/* A C statement to build up a unique section name, expressed as a
- STRING_CST node, and assign it to `DECL_SECTION_NAME (DECL)'.
- RELOC indicates whether the initial value of EXP requires
- link-time relocations. If you do not define this macro, GNU CC
- will use the symbol name prefixed by `.' as the section name.
-
- Defined in svr4.h. */
-/* #define UNIQUE_SECTION(DECL, RELOC) */
-
-/*}}}*/ \f
-/*{{{ Position Independent Code. */
-
-/* The register number of the register used to address a table of static data
- addresses in memory. In some cases this register is defined by a
- processor's "application binary interface" (ABI). When this macro is
- defined, RTL is generated for this register once, as with the stack pointer
- and frame pointer registers. If this macro is not defined, it is up to the
- machine-dependent files to allocate such a register (if necessary). */
-/* #define PIC_OFFSET_TABLE_REGNUM */
-
-/* Define this macro if the register defined by `PIC_OFFSET_TABLE_REGNUM' is
- clobbered by calls. Do not define this macro if `PPIC_OFFSET_TABLE_REGNUM'
- is not defined. */
-/* #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED */
-
-/* By generating position-independent code, when two different programs (A and
- B) share a common library (libC.a), the text of the library can be shared
- whether or not the library is linked at the same address for both programs.
- In some of these environments, position-independent code requires not only
- the use of different addressing modes, but also special code to enable the
- use of these addressing modes.
-
- The `FINALIZE_PIC' macro serves as a hook to emit these special codes once
- the function is being compiled into assembly code, but not before. (It is
- not done before, because in the case of compiling an inline function, it
- would lead to multiple PIC prologues being included in functions which used
- inline functions and were compiled to assembly language.) */
-/* #define FINALIZE_PIC */
-
-/* A C expression that is nonzero if X is a legitimate immediate operand on the
- target machine when generating position independent code. You can assume
- that X satisfies `CONSTANT_P', so you need not check this. You can also
- assume FLAG_PIC is true, so you need not check it either. You need not
- define this macro if all constants (including `SYMBOL_REF') can be immediate
- operands when generating position independent code. */
-/* #define LEGITIMATE_PIC_OPERAND_P(X) */
-
/*}}}*/ \f
/*{{{ The Overall Framework of an Assembler File. */
-/* A C expression which outputs to the stdio stream STREAM some appropriate
- text to go at the end of an assembler file.
-
- If this macro is not defined, the default is to output nothing special at
- the end of the file. Most systems don't require any definition.
-
- On systems that use SDB, it is necessary to output certain commands; see
- `attasm.h'.
-
- Defined in svr4.h. */
-/* #define ASM_FILE_END(STREAM) */
-
-/* A C statement to output assembler commands which will identify the object
- file as having been compiled with GNU CC (or another GNU compiler).
-
- If you don't define this macro, the string `gcc_compiled.:' is output. This
- string is calculated to define a symbol which, on BSD systems, will never be
- defined for any other reason. GDB checks for the presence of this symbol
- when reading the symbol table of an executable.
-
- On non-BSD systems, you must arrange communication with GDB in some other
- fashion. If GDB is not used on your system, you can define this macro with
- an empty body.
-
- Defined in svr4.h. */
-/* #define ASM_IDENTIFY_GCC(FILE) */
-
-/* Like ASM_IDENTIFY_GCC, but used when dbx debugging is selected to emit
- a stab the debugger uses to identify gcc as the compiler that is emitted
- after the stabs for the filename, which makes it easier for GDB to parse.
-
- Defined in svr4.h. */
-/* #define ASM_IDENTIFY_GCC_AFTER_SOURCE(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. */
for ordinary compiler output. */
#define ASM_APP_OFF "#NO_APP\n"
-/* A C statement to output COFF information or DWARF debugging information
- which indicates that filename NAME is the current source file to the stdio
- stream STREAM.
-
- This macro need not be defined if the standard form of output for the file
- format in use is appropriate. */
-/* #define ASM_OUTPUT_SOURCE_FILENAME(STREAM, NAME) */
-
-/* A C statement to output DBX or SDB debugging information before code for
- line number LINE of the current source file to the stdio stream STREAM.
-
- This macro need not be defined if the standard form of debugging information
- for the debugger in use is appropriate.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_SOURCE_LINE(STREAM, LINE) */
-
-/* A C statement to output something to the assembler file to handle a `#ident'
- directive containing the text STRING. If this macro is not defined, nothing
- is output for a `#ident' directive.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_IDENT(STREAM, STRING) */
-
-/* A C statement to output something to the assembler file to switch to section
- NAME for object DECL which is either a `FUNCTION_DECL', a `VAR_DECL' or
- `NULL_TREE'. Some target formats do not support arbitrary sections. Do not
- define this macro in such cases.
-
- At present this macro is only used to support section attributes. When this
- macro is undefined, section attributes are disabled.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME) */
-
-/* A C statement to output any assembler statements which are required to
- precede any Objective C object definitions or message sending. The
- statement is executed only when compiling an Objective C program. */
-/* #define OBJC_PROLOGUE */
-
/*}}}*/ \f
/*{{{ Output of Data. */
-/* A C statement to output to the stdio stream STREAM an assembler instruction
- to assemble a floating-point constant of `TFmode', `DFmode', `SFmode',
- `TQFmode', `HFmode', or `QFmode', respectively, whose value is VALUE. VALUE
- will be a C expression of type `REAL_VALUE_TYPE'. Macros such as
- `REAL_VALUE_TO_TARGET_DOUBLE' are useful for writing these definitions. */
-/* #define ASM_OUTPUT_LONG_DOUBLE(STREAM, VALUE) */
-/* #define ASM_OUTPUT_THREE_QUARTER_FLOAT(STREAM, VALUE) */
-/* #define ASM_OUTPUT_SHORT_FLOAT(STREAM, VALUE) */
-/* #define ASM_OUTPUT_BYTE_FLOAT(STREAM, VALUE) */
-
/* This is how to output an assembler line defining a `float' constant. */
-#define ASM_OUTPUT_FLOAT(FILE, VALUE) \
-do { \
- long t; \
- char str[30]; \
- REAL_VALUE_TO_TARGET_SINGLE ((VALUE), t); \
- REAL_VALUE_TO_DECIMAL ((VALUE), "%.20e", str); \
- fprintf (FILE, "\t.word\t0x%lx %s %s\n", \
- t, ASM_COMMENT_START, str); \
-} while (0)
+#define ASM_OUTPUT_FLOAT(FILE, VALUE) \
+ do \
+ { \
+ long t; \
+ char str[30]; \
+ \
+ REAL_VALUE_TO_TARGET_SINGLE ((VALUE), t); \
+ REAL_VALUE_TO_DECIMAL ((VALUE), "%.20e", str); \
+ \
+ fprintf (FILE, "\t.word\t0x%lx %s %s\n", \
+ t, ASM_COMMENT_START, str); \
+ } \
+ while (0)
/* This is how to output an assembler line defining a `double' constant. */
-#define ASM_OUTPUT_DOUBLE(FILE, VALUE) \
-do { \
- long t[2]; \
- char str[30]; \
- REAL_VALUE_TO_TARGET_DOUBLE ((VALUE), t); \
- REAL_VALUE_TO_DECIMAL ((VALUE), "%.20e", str); \
- fprintf (FILE, "\t.word\t0x%lx %s %s\n\t.word\t0x%lx\n", \
- t[0], ASM_COMMENT_START, str, t[1]); \
-} while (0)
-
-
-/* A C statement to output to the stdio stream STREAM an assembler instruction
- to assemble an integer of 16, 8, 4, 2 or 1 bytes, respectively, whose value
- is VALUE. The argument EXP will be an RTL expression which represents a
- constant value. Use `output_addr_const (STREAM, EXP)' to output this value
- as an assembler expression.
-
- For sizes larger than `UNITS_PER_WORD', if the action of a macro would be
- identical to repeatedly calling the macro corresponding to a size of
- `UNITS_PER_WORD', once for each word, you need not define the macro. */
-/* #define ASM_OUTPUT_QUADRUPLE_INT(STREAM, EXP) */
-/* #define ASM_OUTPUT_DOUBLE_INT(STREAM, EXP) */
+#define ASM_OUTPUT_DOUBLE(FILE, VALUE) \
+ do \
+ { \
+ long t[2]; \
+ char str[30]; \
+ \
+ REAL_VALUE_TO_TARGET_DOUBLE ((VALUE), t); \
+ REAL_VALUE_TO_DECIMAL ((VALUE), "%.20e", str); \
+ \
+ fprintf (FILE, "\t.word\t0x%lx %s %s\n\t.word\t0x%lx\n", \
+ t[0], ASM_COMMENT_START, str, t[1]); \
+ } \
+ while (0)
/* This is how to output an assembler line defining a `char' constant. */
-#define ASM_OUTPUT_CHAR(FILE, VALUE) \
-do { \
- fprintf (FILE, "\t.byte\t"); \
- output_addr_const (FILE, (VALUE)); \
- fprintf (FILE, "\n"); \
-} while (0)
+#define ASM_OUTPUT_CHAR(FILE, VALUE) \
+ do \
+ { \
+ fprintf (FILE, "\t.byte\t"); \
+ output_addr_const (FILE, (VALUE)); \
+ fprintf (FILE, "\n"); \
+ } \
+ while (0)
/* This is how to output an assembler line defining a `short' constant. */
-#define ASM_OUTPUT_SHORT(FILE, VALUE) \
-do { \
- fprintf (FILE, "\t.hword\t"); \
- output_addr_const (FILE, (VALUE)); \
- fprintf (FILE, "\n"); \
-} while (0)
+#define ASM_OUTPUT_SHORT(FILE, VALUE) \
+ do \
+ { \
+ fprintf (FILE, "\t.hword\t"); \
+ output_addr_const (FILE, (VALUE)); \
+ fprintf (FILE, "\n"); \
+ } \
+ while (0)
/* This is how to output an assembler line defining an `int' constant.
We also handle symbol output here. */
-#define ASM_OUTPUT_INT(FILE, VALUE) \
-do { \
- fprintf (FILE, "\t.word\t"); \
- output_addr_const (FILE, (VALUE)); \
- fprintf (FILE, "\n"); \
-} while (0)
+#define ASM_OUTPUT_INT(FILE, VALUE) \
+ do \
+ { \
+ fprintf (FILE, "\t.word\t"); \
+ output_addr_const (FILE, (VALUE)); \
+ fprintf (FILE, "\n"); \
+ } \
+ while (0)
/* A C statement to output to the stdio stream STREAM an assembler instruction
to assemble a single byte containing the number VALUE. */
#define ASM_OUTPUT_BYTE(STREAM, VALUE) \
fprintf (STREAM, "\t%s\t0x%x\n", ASM_BYTE_OP, (VALUE))
-/* A C string constant giving the pseudo-op to use for a sequence of
- single-byte constants. If this macro is not defined, the default
- is `"byte"'.
-
- Defined in svr4.h. */
-/* #define ASM_BYTE_OP */
-
-/* A C statement to output to the stdio stream STREAM an assembler instruction
- to assemble a string constant containing the LEN bytes at PTR. PTR will be
- a C expression of type `char *' and LEN a C expression of type `int'.
-
- If the assembler has a `.ascii' pseudo-op as found in the Berkeley Unix
- assembler, do not define the macro `ASM_OUTPUT_ASCII'.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_ASCII(STREAM, PTR, LEN) */
-
-/* You may define this macro as a C expression. You should define the
- expression to have a non-zero value if GNU CC should output the
- constant pool for a function before the code for the function, or
- a zero value if GNU CC should output the constant pool after the
- function. If you do not define this macro, the usual case, GNU CC
- will output the constant pool before the function. */
-/* #define CONSTANT_POOL_BEFORE_FUNCTION */
-
-/* A C statement to output assembler commands to define the start of the
- constant pool for a function. FUNNAME is a string giving the name of the
- function. Should the return type of the function be required, it can be
- obtained via FUNDECL. SIZE is the size, in bytes, of the constant pool that
- will be written immediately after this call.
-
- If no constant-pool prefix is required, the usual case, this macro need not
- be defined. */
-/* #define ASM_OUTPUT_POOL_PROLOGUE(FILE FUNNAME FUNDECL SIZE) */
-
-/* A C statement (with or without semicolon) to output a constant in the
- constant pool, if it needs special treatment. (This macro need not do
- anything for RTL expressions that can be output normally.)
-
- The argument FILE is the standard I/O stream to output the assembler code
- on. X is the RTL expression for the constant to output, and MODE is the
- machine mode (in case X is a `const_int'). ALIGN is the required alignment
- for the value X; you should output an assembler directive to force this much
- alignment.
-
- The argument LABELNO is a number to use in an internal label for the address
- of this pool entry. The definition of this macro is responsible for
- outputting the label definition at the proper place. Here is how to do
- this:
-
- ASM_OUTPUT_INTERNAL_LABEL (FILE, "LC", LABELNO);
-
- When you output a pool entry specially, you should end with a `goto' to the
- label JUMPTO. This will prevent the same pool entry from being output a
- second time in the usual manner.
-
- You need not define this macro if it would do nothing. */
-/* #define ASM_OUTPUT_SPECIAL_POOL_ENTRY(FILE, X, MODE, ALIGN, LABELNO, JUMPTO) */
-
-/* Define this macro as a C expression which is nonzero if the constant EXP, of
- type `tree', should be output after the code for a function. The compiler
- will normally output all constants before the function; you need not define
- this macro if this is OK. */
-/* #define CONSTANT_AFTER_FUNCTION_P(EXP) */
-
-/* A C statement to output assembler commands to at the end of the constant
- pool for a function. FUNNAME is a string giving the name of the function.
- Should the return type of the function be required, you can obtain it via
- FUNDECL. SIZE is the size, in bytes, of the constant pool that GNU CC wrote
- immediately before this call.
-
- If no constant-pool epilogue is required, the usual case, you need not
- define this macro. */
-/* #define ASM_OUTPUT_POOL_EPILOGUE (FILE FUNNAME FUNDECL SIZE) */
-
-/* Define this macro as a C expression which is nonzero if C is used as a
- logical line separator by the assembler.
-
- If you do not define this macro, the default is that only the character `;'
- is treated as a logical line separator. */
-/* #define IS_ASM_LOGICAL_LINE_SEPARATOR(C) */
-
/* These macros are defined as C string constant, describing the syntax in the
assembler for grouping arithmetic expressions. The following definitions
are correct for most assemblers:
#define ASM_OPEN_PAREN "("
#define ASM_CLOSE_PAREN ")"
-/* These macros are provided by `real.h' for writing the definitions of
- `ASM_OUTPUT_DOUBLE' and the like: */
-
-/* These translate X, of type `REAL_VALUE_TYPE', to the target's floating point
- representation, and store its bit pattern in the array of `long int' whose
- address is L. The number of elements in the output array is determined by
- the size of the desired target floating point data type: 32 bits of it go in
- each `long int' array element. Each array element holds 32 bits of the
- result, even if `long int' is wider than 32 bits on the host machine.
-
- The array element values are designed so that you can print them out using
- `fprintf' in the order they should appear in the target machine's memory. */
-/* #define REAL_VALUE_TO_TARGET_SINGLE(X, L) */
-/* #define REAL_VALUE_TO_TARGET_DOUBLE(X, L) */
-/* #define REAL_VALUE_TO_TARGET_LONG_DOUBLE(X, L) */
-
-/* This macro converts X, of type `REAL_VALUE_TYPE', to a decimal number and
- stores it as a string into STRING. You must pass, as STRING, the address of
- a long enough block of space to hold the result.
-
- The argument FORMAT is a `printf'-specification that serves as a suggestion
- for how to format the output string. */
-/* #define REAL_VALUE_TO_DECIMAL(X, FORMAT, STRING) */
-
-/*}}}*/ \f
-/*{{{ Output of Uninitialized Variables. */
-
-/* A C statement (sans semicolon) to output to the stdio stream STREAM the
- assembler definition of a common-label named NAME whose size is SIZE bytes.
- The variable ROUNDED is the size rounded up to whatever alignment the caller
- wants.
-
- Use the expression `assemble_name (STREAM, NAME)' to output the name itself;
- before and after that, output the additional assembler syntax for defining
- the name, and a newline.
-
- This macro controls how the assembler definitions of uninitialized global
- variables are output. */
-/* #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) */
-
-/* Like `ASM_OUTPUT_COMMON' except takes the required alignment as a separate,
- explicit argument. If you define this macro, it is used in place of
- `ASM_OUTPUT_COMMON', and gives you more flexibility in handling the required
- alignment of the variable. The alignment is specified as the number of
- bits.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_ALIGNED_COMMON(STREAM, NAME, SIZE, ALIGNMENT) */
-
-/* Like ASM_OUTPUT_ALIGNED_COMMON except that it takes an additional argument -
- the DECL of the variable to be output, if there is one. This macro can be
- called with DECL == NULL_TREE. If you define this macro, it is used in
- place of both ASM_OUTPUT_COMMON and ASM_OUTPUT_ALIGNED_COMMON, and gives you
- more flexibility in handling the destination of the variable. */
-/* #define ASM_OUTPUT_DECL_COMMON (STREAM, DECL, NAME, SIZE, ALIGNMENT) */
-
-/* If defined, it is similar to `ASM_OUTPUT_COMMON', except that it is used
- when NAME is shared. If not defined, `ASM_OUTPUT_COMMON' will be used. */
-/* #define ASM_OUTPUT_SHARED_COMMON(STREAM, NAME, SIZE, ROUNDED) */
-
-/* A C statement (sans semicolon) to output to the stdio stream STREAM the
- assembler definition of uninitialized global DECL named NAME whose size is
- SIZE bytes. The variable ROUNDED is the size rounded up to whatever
- alignment the caller wants.
-
- Try to use function `asm_output_bss' defined in `varasm.c' when defining
- this macro. If unable, use the expression `assemble_name (STREAM, NAME)' to
- output the name itself; before and after that, output the additional
- assembler syntax for defining the name, and a newline.
-
- This macro controls how the assembler definitions of uninitialized global
- variables are output. This macro exists to properly support languages like
- `c++' which do not have `common' data. However, this macro currently is not
- defined for all targets. If this macro and `ASM_OUTPUT_ALIGNED_BSS' are not
- defined then `ASM_OUTPUT_COMMON' or `ASM_OUTPUT_ALIGNED_COMMON' or
- `ASM_OUTPUT_DECL_COMMON' is used. */
-/* #define ASM_OUTPUT_BSS(STREAM, DECL, NAME, SIZE, ROUNDED) */
-
-/* Like `ASM_OUTPUT_BSS' except takes the required alignment as a separate,
- explicit argument. If you define this macro, it is used in place of
- `ASM_OUTPUT_BSS', and gives you more flexibility in handling the required
- alignment of the variable. The alignment is specified as the number of
- bits.
-
- Try to use function `asm_output_aligned_bss' defined in file `varasm.c' when
- defining this macro. */
-/* #define ASM_OUTPUT_ALIGNED_BSS(STREAM, DECL, NAME, SIZE, ALIGNMENT) */
-
-/* If defined, it is similar to `ASM_OUTPUT_BSS', except that it is used when
- NAME is shared. If not defined, `ASM_OUTPUT_BSS' will be used. */
-/* #define ASM_OUTPUT_SHARED_BSS(STREAM, DECL, NAME, SIZE, ROUNDED) */
-
-/* A C statement (sans semicolon) to output to the stdio stream STREAM the
- assembler definition of a local-common-label named NAME whose size is SIZE
- bytes. The variable ROUNDED is the size rounded up to whatever alignment
- the caller wants.
-
- Use the expression `assemble_name (STREAM, NAME)' to output the name itself;
- before and after that, output the additional assembler syntax for defining
- the name, and a newline.
-
- This macro controls how the assembler definitions of uninitialized static
- variables are output. */
-/* #define ASM_OUTPUT_LOCAL(STREAM, NAME, SIZE, ROUNDED) */
-
-/* Like `ASM_OUTPUT_LOCAL' except takes the required alignment as a separate,
- explicit argument. If you define this macro, it is used in place of
- `ASM_OUTPUT_LOCAL', and gives you more flexibility in handling the required
- alignment of the variable. The alignment is specified as the number of
- bits.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGNMENT) */
-
-/* Like `ASM_OUTPUT_ALIGNED_LOCAL' except that it takes an additional
- parameter - the DECL of variable to be output, if there is one.
- This macro can be called with DECL == NULL_TREE. If you define
- this macro, it is used in place of `ASM_OUTPUT_LOCAL' and
- `ASM_OUTPUT_ALIGNED_LOCAL', and gives you more flexibility in
- handling the destination of the variable. */
-/* #define ASM_OUTPUT_DECL_LOCAL(STREAM, DECL, NAME, SIZE, ALIGNMENT) */
-
-/* If defined, it is similar to `ASM_OUTPUT_LOCAL', except that it is used when
- NAME is shared. If not defined, `ASM_OUTPUT_LOCAL' will be used. */
-/* #define ASM_OUTPUT_SHARED_LOCAL (STREAM, NAME, SIZE, ROUNDED) */
-
/*}}}*/ \f
/*{{{ Output and Generation of Labels. */
`assemble_name (STREAM, NAME)' to output the name itself; before and after
that, output the additional assembler syntax for defining the name, and a
newline. */
-#define ASM_OUTPUT_LABEL(STREAM, NAME) \
-do { \
- assemble_name (STREAM, NAME); \
- fputs (":\n", STREAM); \
-} while (0)
-
-/* A C statement (sans semicolon) to output to the stdio stream STREAM any text
- necessary for declaring the name NAME of a function which is being defined.
- This macro is responsible for outputting the label definition (perhaps using
- `ASM_OUTPUT_LABEL'). The argument DECL is the `FUNCTION_DECL' tree node
- representing the function.
-
- If this macro is not defined, then the function name is defined in the usual
- manner as a label (by means of `ASM_OUTPUT_LABEL').
-
- Defined in svr4.h. */
-/* #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) */
-
-/* A C statement (sans semicolon) to output to the stdio stream STREAM any text
- necessary for declaring the size of a function which is being defined. The
- argument NAME is the name of the function. The argument DECL is the
- `FUNCTION_DECL' tree node representing the function.
-
- If this macro is not defined, then the function size is not defined.
-
- Defined in svr4.h. */
-/* #define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL) */
-
-/* A C statement (sans semicolon) to output to the stdio stream STREAM any text
- necessary for declaring the name NAME of an initialized variable which is
- being defined. This macro must output the label definition (perhaps using
- `ASM_OUTPUT_LABEL'). The argument DECL is the `VAR_DECL' tree node
- representing the variable.
-
- If this macro is not defined, then the variable name is defined in the usual
- manner as a label (by means of `ASM_OUTPUT_LABEL').
-
- Defined in svr4.h. */
-/* #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL) */
-
-/* A C statement (sans semicolon) to finish up declaring a variable name once
- the compiler has processed its initializer fully and thus has had a chance
- to determine the size of an array when controlled by an initializer. This
- is used on systems where it's necessary to declare something about the size
- of the object.
-
- If you don't define this macro, that is equivalent to defining it to do
- nothing.
-
- Defined in svr4.h. */
-/* #define ASM_FINISH_DECLARE_OBJECT(STREAM, DECL, TOPLEVEL, ATEND) */
+#define ASM_OUTPUT_LABEL(STREAM, NAME) \
+ do \
+ { \
+ assemble_name (STREAM, NAME); \
+ fputs (":\n", STREAM); \
+ } \
+ while (0)
/* A C statement (sans semicolon) to output to the stdio stream STREAM some
commands that will make the label NAME global; that is, available for
reference from other files. Use the expression `assemble_name (STREAM,
NAME)' to output the name itself; before and after that, output the
additional assembler syntax for making that name global, and a newline. */
-#define ASM_GLOBALIZE_LABEL(STREAM,NAME) \
-do { \
- fputs ("\t.globl ", STREAM); \
- assemble_name (STREAM, NAME); \
- fputs ("\n", STREAM); \
-} while (0)
-
-/* A C statement (sans semicolon) to output to the stdio stream STREAM some
- commands that will make the label NAME weak; that is, available for
- reference from other files but only used if no other definition is
- available. Use the expression `assemble_name (STREAM, NAME)' to output the
- name itself; before and after that, output the additional assembler syntax
- for making that name weak, and a newline.
-
- If you don't define this macro, GNU CC will not support weak symbols and you
- should not define the `SUPPORTS_WEAK' macro.
-
- Defined in svr4.h. */
-/* #define ASM_WEAKEN_LABEL */
-
-/* A C expression which evaluates to true if the target supports weak symbols.
-
- If you don't define this macro, `defaults.h' provides a default definition.
- If `ASM_WEAKEN_LABEL' is defined, the default definition is `1'; otherwise,
- it is `0'. Define this macro if you want to control weak symbol support
- with a compiler flag such as `-melf'. */
-/* #define SUPPORTS_WEAK */
-
-/* A C statement (sans semicolon) to mark DECL to be emitted as a
- public symbol such that extra copies in multiple translation units
- will be discarded by the linker. Define this macro if your object
- file format provides support for this concept, such as the `COMDAT'
- section flags in the Microsoft Windows PE/COFF format, and this
- support requires changes to DECL, such as putting it in a separate
- section.
-
- Defined in svr4.h. */
-/* #define MAKE_DECL_ONE_ONLY */
-
-/* A C expression which evaluates to true if the target supports one-only
- semantics.
-
- If you don't define this macro, `varasm.c' provides a default definition.
- If `MAKE_DECL_ONE_ONLY' is defined, the default definition is `1';
- otherwise, it is `0'. Define this macro if you want to control one-only
- symbol support with a compiler flag, or if setting the `DECL_ONE_ONLY' flag
- is enough to mark a declaration to be emitted as one-only. */
-/* #define SUPPORTS_ONE_ONLY */
-
-/* A C statement (sans semicolon) to output to the stdio stream STREAM any text
- necessary for declaring the name of an external symbol named NAME which is
- referenced in this compilation but not defined. The value of DECL is the
- tree node for the declaration.
-
- This macro need not be defined if it does not need to output anything. The
- GNU assembler and most Unix assemblers don't require anything. */
-/* #define ASM_OUTPUT_EXTERNAL(STREAM, DECL, NAME) */
-
-/* A C statement (sans semicolon) to output on STREAM an assembler pseudo-op to
- declare a library function name external. The name of the library function
- is given by SYMREF, which has type `rtx' and is a `symbol_ref'.
-
- This macro need not be defined if it does not need to output anything. The
- GNU assembler and most Unix assemblers don't require anything.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_EXTERNAL_LIBCALL(STREAM, SYMREF) */
-
-/* A C statement (sans semicolon) to output to the stdio stream STREAM a
- reference in assembler syntax to a label named NAME. This should add `_' to
- the front of the name, if that is customary on your operating system, as it
- is in most Berkeley Unix systems. This macro is used in `assemble_name'. */
-/* #define ASM_OUTPUT_LABELREF(STREAM, NAME) */
-
-/* A C statement to output to the stdio stream STREAM a label whose name is
- made from the string PREFIX and the number NUM.
-
- It is absolutely essential that these labels be distinct from the labels
- used for user-level functions and variables. Otherwise, certain programs
- will have name conflicts with internal labels.
-
- It is desirable to exclude internal labels from the symbol table of the
- object file. Most assemblers have a naming convention for labels that
- should be excluded; on many systems, the letter `L' at the beginning of a
- label has this effect. You should find out what convention your system
- uses, and follow it.
-
- The usual definition of this macro is as follows:
-
- fprintf (STREAM, "L%s%d:\n", PREFIX, NUM)
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_INTERNAL_LABEL(STREAM, PREFIX, NUM) */
+#define ASM_GLOBALIZE_LABEL(STREAM,NAME) \
+ do \
+ { \
+ fputs ("\t.globl ", STREAM); \
+ assemble_name (STREAM, NAME); \
+ fputs ("\n", STREAM); \
+ } \
+ while (0)
/* A C expression to assign to OUTVAR (which is a variable of type `char *') a
newly allocated string made from the string NAME and the number NUMBER, with
conflict with the user's own symbols. Most assemblers allow periods or
percent signs in assembler symbols; putting at least one of these between
the name and the number will suffice. */
-#define ASM_FORMAT_PRIVATE_NAME(OUTVAR, NAME, NUMBER) \
-do { \
- (OUTVAR) = (char *) alloca (strlen ((NAME)) + 12); \
- sprintf ((OUTVAR), "%s.%ld", (NAME), (long)(NUMBER)); \
-} while (0)
-
-/* A C statement to output to the stdio stream STREAM assembler code which
- defines (equates) the symbol NAME to have the value VALUE.
-
- If SET_ASM_OP is defined, a default definition is provided which is correct
- for most systems.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_DEF(STREAM, NAME, VALUE) */
-
-/* A C statement to output to the stdio stream STREAM assembler code which
- defines (equates) the weak symbol NAME to have the value VALUE.
-
- Define this macro if the target only supports weak aliases; define
- ASM_OUTPUT_DEF instead if possible. */
-/* #define ASM_OUTPUT_WEAK_ALIAS (STREAM, NAME, VALUE) */
-
-/* Define this macro to override the default assembler names used for Objective
- C methods.
-
- The default name is a unique method number followed by the name of the class
- (e.g. `_1_Foo'). For methods in categories, the name of the category is
- also included in the assembler name (e.g. `_1_Foo_Bar').
-
- These names are safe on most systems, but make debugging difficult since the
- method's selector is not present in the name. Therefore, particular systems
- define other ways of computing names.
-
- BUF is an expression of type `char *' which gives you a buffer in which to
- store the name; its length is as long as CLASS_NAME, CAT_NAME and SEL_NAME
- put together, plus 50 characters extra.
-
- The argument IS_INST specifies whether the method is an instance method or a
- class method; CLASS_NAME is the name of the class; CAT_NAME is the name of
- the category (or NULL if the method is not in a category); and SEL_NAME is
- the name of the selector.
-
- On systems where the assembler can handle quoted names, you can use this
- macro to provide more human-readable names. */
-/* #define OBJC_GEN_METHOD_LABEL(BUF, IS_INST, CLASS_NAME, CAT_NAME, SEL_NAME) */
-
-/*}}}*/ \f
-/*{{{ Macros Controlling Initialization Routines. */
-
-/* If defined, a C string constant for the assembler operation to identify the
- following data as initialization code. If not defined, GNU CC will assume
- such a section does not exist. When you are using special sections for
- initialization and termination functions, this macro also controls how
- `crtstuff.c' and `libgcc2.c' arrange to run the initialization functions.
-
- Defined in svr4.h. */
-/* #define INIT_SECTION_ASM_OP */
-
-/* If defined, `main' will not call `__main' as described above. This macro
- should be defined for systems that control the contents of the init section
- on a symbol-by-symbol basis, such as OSF/1, and should not be defined
- explicitly for systems that support `INIT_SECTION_ASM_OP'. */
-/* #define HAS_INIT_SECTION */
-
-/* If defined, a C string constant for a switch that tells the linker that the
- following symbol is an initialization routine. */
-/* #define LD_INIT_SWITCH */
-
-/* If defined, a C string constant for a switch that tells the linker that the
- following symbol is a finalization routine. */
-/* #define LD_FINI_SWITCH */
-
-/* If defined, `main' will call `__main' despite the presence of
- `INIT_SECTION_ASM_OP'. This macro should be defined for systems where the
- init section is not actually run automatically, but is still useful for
- collecting the lists of constructors and destructors. */
-/* #define INVOKE__main */
-
-/* Define this macro as a C statement to output on the stream STREAM the
- assembler code to arrange to call the function named NAME at initialization
- time.
-
- Assume that NAME is the name of a C function generated automatically by the
- compiler. This function takes no arguments. Use the function
- `assemble_name' to output the name NAME; this performs any system-specific
- syntactic transformations such as adding an underscore.
-
- If you don't define this macro, nothing special is output to arrange to call
- the function. This is correct when the function will be called in some
- other manner--for example, by means of the `collect2' program, which looks
- through the symbol table to find these functions by their names.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_CONSTRUCTOR(STREAM, NAME) */
-
-/* This is like `ASM_OUTPUT_CONSTRUCTOR' but used for termination functions
- rather than initialization functions.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_DESTRUCTOR(STREAM, NAME) */
-
-/* If your system uses `collect2' as the means of processing constructors, then
- that program normally uses `nm' to scan an object file for constructor
- functions to be called. On certain kinds of systems, you can define these
- macros to make `collect2' work faster (and, in some cases, make it work at
- all): */
-
-/* Define this macro if the system uses COFF (Common Object File Format) object
- files, so that `collect2' can assume this format and scan object files
- directly for dynamic constructor/destructor functions. */
-/* #define OBJECT_FORMAT_COFF */
-
-/* Define this macro if the system uses ROSE format object files, so that
- `collect2' can assume this format and scan object files directly for dynamic
- constructor/destructor functions.
-
- These macros are effective only in a native compiler; `collect2' as
- part of a cross compiler always uses `nm' for the target machine. */
-/* #define OBJECT_FORMAT_ROSE */
-
-/* Define this macro if the system uses ELF format object files.
-
- Defined in svr4.h. */
-/* #define OBJECT_FORMAT_ELF */
-
-/* Define this macro as a C string constant containing the file name to use to
- execute `nm'. The default is to search the path normally for `nm'.
-
- If your system supports shared libraries and has a program to list the
- dynamic dependencies of a given library or executable, you can define these
- macros to enable support for running initialization and termination
- functions in shared libraries: */
-/* #define REAL_NM_FILE_NAME */
-
-/* Define this macro to a C string constant containing the name of the program
- which lists dynamic dependencies, like `"ldd"' under SunOS 4. */
-/* #define LDD_SUFFIX */
-
-/* Define this macro to be C code that extracts filenames from the output of
- the program denoted by `LDD_SUFFIX'. PTR is a variable of type `char *'
- that points to the beginning of a line of output from `LDD_SUFFIX'. If the
- line lists a dynamic dependency, the code must advance PTR to the beginning
- of the filename on that line. Otherwise, it must set PTR to `NULL'. */
-/* #define PARSE_LDD_OUTPUT (PTR) */
+#define ASM_FORMAT_PRIVATE_NAME(OUTVAR, NAME, NUMBER) \
+ do \
+ { \
+ (OUTVAR) = (char *) alloca (strlen ((NAME)) + 12); \
+ sprintf ((OUTVAR), "%s.%ld", (NAME), (long)(NUMBER)); \
+ } \
+ while (0)
/*}}}*/ \f
/*{{{ Output of Assembler Instructions. */
-/* Define this macro if you are using an unusual assembler that requires
- different names for the machine instructions.
-
- The definition is a C statement or statements which output an assembler
- instruction opcode to the stdio stream STREAM. The macro-operand PTR is a
- variable of type `char *' which points to the opcode name in its "internal"
- form--the form that is written in the machine description. The definition
- should output the opcode name to STREAM, performing any translation you
- desire, and increment the variable PTR to point at the end of the opcode so
- that it will not be output twice.
-
- In fact, your macro definition may process less than the entire opcode name,
- or more than the opcode name; but if you want to process text that includes
- `%'-sequences to substitute operands, you must take care of the substitution
- yourself. Just be sure to increment PTR over whatever text should not be
- output normally.
-
- If you need to look at the operand values, they can be found as the elements
- of `recog_data.operand'.
-
- If the macro definition does nothing, the instruction is output in the usual
- way. */
-/* #define ASM_OUTPUT_OPCODE(STREAM, PTR) */
-
-/* If defined, a C statement to be executed just prior to the output of
- assembler code for INSN, to modify the extracted operands so they will be
- output differently.
-
- Here the argument OPVEC is the vector containing the operands extracted from
- INSN, and NOPERANDS is the number of elements of the vector which contain
- meaningful data for this insn. The contents of this vector are what will be
- used to convert the insn template into assembler code, so you can change the
- assembler output by changing the contents of the vector.
-
- This macro is useful when various assembler syntaxes share a single file of
- instruction patterns; by defining this macro differently, you can cause a
- large class of instructions to be output differently (such as with
- rearranged operands). Naturally, variations in assembler syntax affecting
- individual insn patterns ought to be handled by writing conditional output
- routines in those patterns.
-
- If this macro is not defined, it is equivalent to a null statement. */
-/* #define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) */
-
-/* If defined, `FINAL_PRESCAN_INSN' will be called on each
- `CODE_LABEL'. In that case, OPVEC will be a null pointer and
- NOPERANDS will be zero. */
-/* #define FINAL_PRESCAN_LABEL */
-
/* A C compound statement to output to stdio stream STREAM the assembler syntax
for an instruction operand X. X is an RTL expression.
then check for it here. *Note Assembler Format::. */
#define PRINT_OPERAND_ADDRESS(STREAM, X) fr30_print_operand_address (STREAM, X)
-/* A C statement, to be executed after all slot-filler instructions have been
- output. If necessary, call `dbr_sequence_length' to determine the number of
- slots filled in a sequence (zero if not currently outputting a sequence), to
- decide how many no-ops to output, or whatever.
-
- Don't define this macro if it has nothing to do, but it is helpful in
- reading assembly output if the extent of the delay sequence is made explicit
- (e.g. with white space).
-
- Note that output routines for instructions with delay slots must be prepared
- to deal with not being output as part of a sequence (i.e. when the
- scheduling pass is not run, or when no slot fillers could be found.) The
- variable `final_sequence' is null when not processing a sequence, otherwise
- it contains the `sequence' rtx being output. */
-/* #define DBR_OUTPUT_SEQEND(FILE) */
-
/* If defined, C string expressions to be used for the `%R', `%L', `%U', and
`%I' options of `asm_fprintf' (see `final.c'). These are useful when a
single `md' file must support multiple assembler formats. In that case, the
#define USER_LABEL_PREFIX ""
#define IMMEDIATE_PREFIX ""
-/* If your target supports multiple dialects of assembler language (such as
- different opcodes), define this macro as a C expression that gives the
- numeric index of the assembler language dialect to use, with zero as the
- first variant.
-
- If this macro is defined, you may use `{option0|option1|option2...}'
- constructs in the output templates of patterns or
- in the first argument of `asm_fprintf'. This construct outputs `option0',
- `option1' or `option2', etc., if the value of `ASSEMBLER_DIALECT' is zero,
- one or two, etc. Any special characters within these strings retain their
- usual meaning.
-
- If you do not define this macro, the characters `{', `|' and `}' do not have
- any special meaning when used in templates or operands to `asm_fprintf'.
-
- Define the macros `REGISTER_PREFIX', `LOCAL_LABEL_PREFIX',
- `USER_LABEL_PREFIX' and `IMMEDIATE_PREFIX' if you can express the variations
- in assemble language syntax with that mechanism. Define `ASSEMBLER_DIALECT'
- and use the `{option0|option1}' syntax if the syntax variant are larger and
- involve such things as different opcodes or operand order. */
-/* #define ASSEMBLER_DIALECT */
-
-/* A C expression to output to STREAM some assembler code which will push hard
- register number REGNO onto the stack. The code need not be optimal, since
- this macro is used only when profiling. */
-/* #define ASM_OUTPUT_REG_PUSH (STREAM, REGNO) */
-
-/* A C expression to output to STREAM some assembler code which will pop hard
- register number REGNO off of the stack. The code need not be optimal, since
- this macro is used only when profiling. */
-/* #define ASM_OUTPUT_REG_POP (STREAM, REGNO) */
-
/*}}}*/ \f
-/*{{{ Output of dispatch tables. */
+/*{{{ Output of Dispatch Tables. */
/* This macro should be provided on machines where the addresses in a dispatch
table are relative to the table's own address.
#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
fprintf (STREAM, "\t.word .L%d\n", VALUE)
-/* Define this if the label before a jump-table needs to be output specially.
- The first three arguments are the same as for `ASM_OUTPUT_INTERNAL_LABEL';
- the fourth argument is the jump-table which follows (a `jump_insn'
- containing an `addr_vec' or `addr_diff_vec').
-
- This feature is used on system V to output a `swbeg' statement for the
- table.
-
- If this macro is not defined, these labels are output with
- `ASM_OUTPUT_INTERNAL_LABEL'.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_CASE_LABEL(STREAM, PREFIX, NUM, TABLE) */
-
-/* Define this if something special must be output at the end of a jump-table.
- The definition should be a C statement to be executed after the assembler
- code for the table is written. It should write the appropriate code to
- stdio stream STREAM. The argument TABLE is the jump-table insn, and NUM is
- the label-number of the preceding label.
-
- If this macro is not defined, nothing special is output at the end of the
- jump-table. */
-/* #define ASM_OUTPUT_CASE_END(STREAM, NUM, TABLE) */
-
-/*}}}*/ \f
-/*{{{ Assembler Commands for Exception Regions. */
-
-/* A C expression to output text to mark the start of an exception region.
-
- This macro need not be defined on most platforms. */
-/* #define ASM_OUTPUT_EH_REGION_BEG() */
-
-/* A C expression to output text to mark the end of an exception region.
-
- This macro need not be defined on most platforms. */
-/* #define ASM_OUTPUT_EH_REGION_END() */
-
-/* A C expression to switch to the section in which the main exception table is
- to be placed. The default is a section named
- `.gcc_except_table' on machines that support named sections via
- `ASM_OUTPUT_SECTION_NAME', otherwise if `-fpic' or `-fPIC' is in effect, the
- `data_section', otherwise the `readonly_data_section'. */
-/* #define EXCEPTION_SECTION() */
-
-/* If defined, a C string constant for the assembler operation to switch to the
- section for exception handling frame unwind information. If not defined,
- GNU CC will provide a default definition if the target supports named
- sections. `crtstuff.c' uses this macro to switch to the appropriate
- section.
-
- You should define this symbol if your target supports DWARF 2 frame unwind
- information and the default definition does not work. */
-/* #define EH_FRAME_SECTION_ASM_OP */
-
-/* A C expression that is nonzero if the normal exception table output should
- be omitted.
-
- This macro need not be defined on most platforms. */
-/* #define OMIT_EH_TABLE() */
-
-/* Alternate runtime support for looking up an exception at runtime and finding
- the associated handler, if the default method won't work.
-
- This macro need not be defined on most platforms. */
-/* #define EH_TABLE_LOOKUP() */
-
-/* A C expression that decides whether or not the current function needs to
- have a function unwinder generated for it. See the file `except.c' for
- details on when to define this, and how. */
-/* #define DOESNT_NEED_UNWINDER */
-
-/* An rtx used to mask the return address found via RETURN_ADDR_RTX, so that it
- does not contain any extraneous set bits in it. */
-/* #define MASK_RETURN_ADDR */
-
-/* Define this macro to 0 if your target supports DWARF 2 frame unwind
- information, but it does not yet work with exception handling. Otherwise,
- if your target supports this information (if it defines
- `INCOMING_RETURN_ADDR_RTX' and either `UNALIGNED_INT_ASM_OP' or
- `OBJECT_FORMAT_ELF'), GCC will provide a default definition of 1.
-
- If this macro is defined to 1, the DWARF 2 unwinder will be the default
- exception handling mechanism; otherwise, setjmp/longjmp will be used by
- default.
-
- If this macro is defined to anything, the DWARF 2 unwinder will be used
- instead of inline unwinders and __unwind_function in the non-setjmp case. */
-/* #define DWARF2_UNWIND_INFO */
-
/*}}}*/ \f
/*{{{ Assembler Commands for Alignment. */
-/* The alignment (log base 2) to put in front of LABEL, which follows
- a BARRIER.
-
- This macro need not be defined if you don't want any special alignment to be
- done at such a time. Most machine descriptions do not currently define the
- macro. */
-/* #define LABEL_ALIGN_AFTER_BARRIER(LABEL) */
-
-/* The desired alignment for the location counter at the beginning
- of a loop.
-
- This macro need not be defined if you don't want any special alignment to be
- done at such a time. Most machine descriptions do not currently define the
- macro. */
-/* #define LOOP_ALIGN(LABEL) */
-
-/* Define this macro if `ASM_OUTPUT_SKIP' should not be used in the text
- section because it fails put zeros in the bytes that are skipped. This is
- true on many Unix systems, where the pseudo-op to skip bytes produces no-op
- instructions rather than zeros when used in the text section. */
-/* #define ASM_NO_SKIP_IN_TEXT */
-
/* A C statement to output to the stdio stream STREAM an assembler command to
advance the location counter to a multiple of 2 to the POWER bytes. POWER
will be a C expression of type `int'. */
actual register numbering scheme. */
#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
-/* A C expression that returns the integer offset value for an automatic
- variable having address X (an RTL expression). The default computation
- assumes that X is based on the frame-pointer and gives the offset from the
- frame-pointer. This is required for targets that produce debugging output
- for DBX or COFF-style debugging output for SDB and allow the frame-pointer
- to be eliminated when the `-g' options is used. */
-/* #define DEBUGGER_AUTO_OFFSET(X) */
-
-/* A C expression that returns the integer offset value for an argument having
- address X (an RTL expression). The nominal offset is OFFSET. */
-/* #define DEBUGGER_ARG_OFFSET(OFFSET, X) */
-
-/* A C expression that returns the type of debugging output GNU CC produces
- when the user specifies `-g' or `-ggdb'. Define this if you have arranged
- for GNU CC to support more than one format of debugging output. Currently,
- the allowable values are `DBX_DEBUG', `SDB_DEBUG', `DWARF_DEBUG',
- `DWARF2_DEBUG', and `XCOFF_DEBUG'.
-
- The value of this macro only affects the default debugging output; the user
- can always get a specific type of output by using `-gstabs', `-gcoff',
- `-gdwarf-1', `-gdwarf-2', or `-gxcoff'.
-
- Defined in svr4.h. */
-#undef PREFERRED_DEBUGGING_TYPE
-#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
-
/*}}}*/ \f
/*{{{ Macros for SDB and Dwarf Output. */
-/* Define this macro if GNU CC should produce dwarf format debugging output in
- response to the `-g' option.
-
- Defined in svr4.h. */
-#define DWARF_DEBUGGING_INFO
-
-/* Define this macro if GNU CC should produce dwarf version 2 format debugging
- output in response to the `-g' option.
-
- To support optional call frame debugging information, you must also define
- `INCOMING_RETURN_ADDR_RTX' and either set `RTX_FRAME_RELATED_P' on the
- prologue insns if you use RTL for the prologue, or call `dwarf2out_def_cfa'
- and `dwarf2out_reg_save' as appropriate from `FUNCTION_PROLOGUE' if you
- don't.
-
- Defined in svr4.h. */
-#define DWARF2_DEBUGGING_INFO
-
-/* Define these macros to override the assembler syntax for the special SDB
- assembler directives. See `sdbout.c' for a list of these macros and their
- arguments. If the standard syntax is used, you need not define them
- yourself. */
-/* #define PUT_SDB_... */
-
-/* Some assemblers do not support a semicolon as a delimiter, even between SDB
- assembler directives. In that case, define this macro to be the delimiter
- to use (usually `\n'). It is not necessary to define a new set of
- `PUT_SDB_OP' macros if this is the only change required. */
-/* #define SDB_DELIM */
-
-/* Define this macro to override the usual method of constructing a dummy name
- for anonymous structure and union types. See `sdbout.c' for more
- information. */
-/* #define SDB_GENERATE_FAKE */
-
-/* Define this macro to allow references to unknown structure, union, or
- enumeration tags to be emitted. Standard COFF does not allow handling of
- unknown references, MIPS ECOFF has support for it. */
-/* #define SDB_ALLOW_UNKNOWN_REFERENCES */
-
/* Define this macro to allow references to structure, union, or enumeration
tags that have not yet been seen to be handled. Some assemblers choke if
forward tags are used, while some require it. */
#define DWARF_LINE_MIN_INSTR_LENGTH 2
/*}}}*/ \f
-/*{{{ Cross Compilation and Floating Point. */
-
-/* While all modern machines use 2's complement representation for integers,
- there are a variety of representations for floating point numbers. This
- means that in a cross-compiler the representation of floating point numbers
- in the compiled program may be different from that used in the machine doing
- the compilation.
-
- Because different representation systems may offer different amounts of
- range and precision, the cross compiler cannot safely use the host machine's
- floating point arithmetic. Therefore, floating point constants must be
- represented in the target machine's format. This means that the cross
- compiler cannot use `atof' to parse a floating point constant; it must have
- its own special routine to use instead. Also, constant folding must emulate
- the target machine's arithmetic (or must not be done at all).
-
- The macros in the following table should be defined only if you are cross
- compiling between different floating point formats.
-
- Otherwise, don't define them. Then default definitions will be set up which
- use `double' as the data type, `==' to test for equality, etc.
-
- You don't need to worry about how many times you use an operand of any of
- these macros. The compiler never uses operands which have side effects. */
-
-/* A macro for the C data type to be used to hold a floating point value in the
- target machine's format. Typically this would be a `struct' containing an
- array of `int'. */
-/* #define REAL_VALUE_TYPE */
-
-/* A macro for a C expression which compares for equality the two values, X and
- Y, both of type `REAL_VALUE_TYPE'. */
-/* #define REAL_VALUES_EQUAL(X, Y) */
-
-/* A macro for a C expression which tests whether X is less than Y, both values
- being of type `REAL_VALUE_TYPE' and interpreted as floating point numbers in
- the target machine's representation. */
-/* #define REAL_VALUES_LESS(X, Y) */
-
-/* A macro for a C expression which performs the standard library function
- `ldexp', but using the target machine's floating point representation. Both
- X and the value of the expression have type `REAL_VALUE_TYPE'. The second
- argument, SCALE, is an integer. */
-/* #define REAL_VALUE_LDEXP(X, SCALE) */
-
-/* A macro whose definition is a C expression to convert the target-machine
- floating point value X to a signed integer. X has type `REAL_VALUE_TYPE'. */
-/* #define REAL_VALUE_FIX(X) */
-
-/* A macro whose definition is a C expression to convert the target-machine
- floating point value X to an unsigned integer. X has type
- `REAL_VALUE_TYPE'. */
-/* #define REAL_VALUE_UNSIGNED_FIX(X) */
-
-/* A macro whose definition is a C expression to round the target-machine
- floating point value X towards zero to an integer value (but still as a
- floating point number). X has type `REAL_VALUE_TYPE', and so does the
- value. */
-/* #define REAL_VALUE_RNDZINT(X) */
-
-/* A macro whose definition is a C expression to round the target-machine
- floating point value X towards zero to an unsigned integer value (but still
- represented as a floating point number). X has type `REAL_VALUE_TYPE', and
- so does the value. */
-/* #define REAL_VALUE_UNSIGNED_RNDZINT(X) */
-
-/* A macro for a C expression which converts STRING, an expression of type
- `char *', into a floating point number in the target machine's
- representation for mode MODE. The value has type `REAL_VALUE_TYPE'. */
-/* #define REAL_VALUE_ATOF(STRING, MODE) */
-
-/* Define this macro if infinity is a possible floating point value, and
- therefore division by 0 is legitimate. */
-/* #define REAL_INFINITY */
-
-/* A macro for a C expression which determines whether X, a floating point
- value, is infinity. The value has type `int'. By default, this is defined
- to call `isinf'. */
-/* #define REAL_VALUE_ISINF(X) */
-
-/* A macro for a C expression which determines whether X, a floating point
- value, is a "nan" (not-a-number). The value has type `int'. By default,
- this is defined to call `isnan'. */
-/* #define REAL_VALUE_ISNAN(X) */
-
-/* Define the following additional macros if you want to make floating point
- constant folding work while cross compiling. If you don't define them,
- cross compilation is still possible, but constant folding will not happen
- for floating point values. */
-
-/* A macro for a C statement which calculates an arithmetic operation of the
- two floating point values X and Y, both of type `REAL_VALUE_TYPE' in the
- target machine's representation, to produce a result of the same type and
- representation which is stored in OUTPUT (which will be a variable).
-
- The operation to be performed is specified by CODE, a tree code which will
- always be one of the following: `PLUS_EXPR', `MINUS_EXPR', `MULT_EXPR',
- `RDIV_EXPR', `MAX_EXPR', `MIN_EXPR'.
-
- The expansion of this macro is responsible for checking for overflow. If
- overflow happens, the macro expansion should execute the statement `return
- 0;', which indicates the inability to perform the arithmetic operation
- requested. */
-/* #define REAL_ARITHMETIC(OUTPUT, CODE, X, Y) */
-
-/* A macro for a C expression which returns the negative of the floating point
- value X. Both X and the value of the expression have type `REAL_VALUE_TYPE'
- and are in the target machine's floating point representation.
-
- There is no way for this macro to report overflow, since overflow can't
- happen in the negation operation. */
-/* #define REAL_VALUE_NEGATE(X) */
-
-/* A macro for a C expression which converts the floating point value X to mode
- MODE.
-
- Both X and the value of the expression are in the target machine's floating
- point representation and have type `REAL_VALUE_TYPE'. However, the value
- should have an appropriate bit pattern to be output properly as a floating
- constant whose precision accords with mode MODE.
-
- There is no way for this macro to report overflow. */
-/* #define REAL_VALUE_TRUNCATE(MODE, X) */
-
-/* A macro for a C expression which converts a floating point value X into a
- double-precision integer which is then stored into LOW and HIGH, two
- variables of type INT. */
-/* #define REAL_VALUE_TO_INT(LOW, HIGH, X) */
-
-/* A macro for a C expression which converts a double-precision integer found
- in LOW and HIGH, two variables of type INT, into a floating point value
- which is then stored into X. */
-/* #define REAL_VALUE_FROM_INT(X, LOW, HIGH) */
-
-/*}}}*/ \f
/*{{{ Miscellaneous Parameters. */
/* An alias for a machine mode name. This is the machine mode that elements of
a jump-table should have. */
#define CASE_VECTOR_MODE SImode
-/* 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 control falls through a `case' insn when the index value is
- out of range. This means the specified default-label is actually ignored by
- the `case' insn proper. */
-/* #define CASE_DROPS_THROUGH */
-
-/* Define this to be the smallest number of different values for which it is
- best to use a jump-table instead of a tree of conditional branches. The
- default is four for machines with a `casesi' instruction and five otherwise.
- This is best for most machines. */
-/* #define CASE_VALUES_THRESHOLD */
-
-/* Define this macro if operations between registers with integral mode smaller
- than a word are always performed on the entire register. Most RISC machines
- have this property and most CISC machines do not. */
-/* #define WORD_REGISTER_OPERATIONS */
-
-/* Define this macro to be a C expression indicating when insns that read
- memory in MODE, an integral mode narrower than a word, set the bits outside
- of MODE to be either the sign-extension or the zero-extension of the data
- read. Return `SIGN_EXTEND' for values of MODE for which the insn
- sign-extends, `ZERO_EXTEND' for which it zero-extends, and `NIL' for other
- modes.
-
- This macro is not called with MODE non-integral or with a width greater than
- or equal to `BITS_PER_WORD', so you may return any value in this case. Do
- not define this macro if it would always return `NIL'. On machines where
- this macro is defined, you will normally define it as the constant
- `SIGN_EXTEND' or `ZERO_EXTEND'. */
-/* #define LOAD_EXTEND_OP (MODE) */
-
-/* Define if loading short immediate values into registers sign extends. */
-/* #define SHORT_IMMEDIATES_SIGN_EXTEND */
-
-/* An alias for a tree code that should be used by default for conversion of
- floating point values to fixed point. Normally, `FIX_ROUND_EXPR' is used. */
-/* #define IMPLICIT_FIX_EXPR */
-
-/* Define this macro if the same instructions that convert a floating point
- number to a signed fixed point number also convert validly to an unsigned
- one. */
-/* #define FIXUNS_TRUNC_LIKE_FIX_TRUNC */
-
/* An alias for a tree code that is the easiest kind of division to compile
code for in the general case. It may be `TRUNC_DIV_EXPR', `FLOOR_DIV_EXPR',
`CEIL_DIV_EXPR' or `ROUND_DIV_EXPR'. These four division operators differ
memory to memory. */
#define MOVE_MAX 8
-/* The maximum number of bytes that a single instruction can move quickly from
- memory to memory. If this is undefined, the default is `MOVE_MAX'.
- Otherwise, it is the constant value that is the largest value that
- `MOVE_MAX' can have at run-time. */
-/* #define MAX_MOVE_MAX */
-
-/* A C expression that is nonzero if on this machine the number of bits
- actually used for the count of a shift operation is equal to the number of
- bits needed to represent the size of the object being shifted. When this
- macro is non-zero, the compiler will assume that it is safe to omit a
- sign-extend, zero-extend, and certain bitwise `and' instructions that
- truncates the count of a shift operation. On machines that have
- instructions that act on bitfields at variable positions, which may include
- `bit test' instructions, a nonzero `SHIFT_COUNT_TRUNCATED' also enables
- deletion of truncations of the values that serve as arguments to bitfield
- instructions.
-
- If both types of instructions truncate the count (for shifts) and position
- (for bitfield operations), or if no variable-position bitfield instructions
- exist, you should define this macro.
-
- However, on some machines, such as the 80386 and the 680x0, truncation only
- applies to shift operations and not the (real or pretended) bitfield
- operations. Define `SHIFT_COUNT_TRUNCATED' to be zero on such machines.
- Instead, add patterns to the `md' file that include the implied truncation
- of the shift instructions.
-
- You need not define this macro if it would always have the value of zero. */
-/* #define SHIFT_COUNT_TRUNCATED */
-
/* A C expression which is nonzero if on this machine it is safe to "convert"
an integer of INPREC bits to one of OUTPREC bits (where OUTPREC is smaller
than INPREC) by merely operating on it as if it had only OUTPREC bits.
things. */
#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
-/* A C expression describing the value returned by a comparison operator with
- an integral mode and stored by a store-flag instruction (`sCOND') when the
- condition is true. This description must apply to *all* the `sCOND'
- patterns and all the comparison operators whose results have a `MODE_INT'
- mode.
-
- A value of 1 or -1 means that the instruction implementing the comparison
- operator returns exactly 1 or -1 when the comparison is true and 0 when the
- comparison is false. Otherwise, the value indicates which bits of the
- result are guaranteed to be 1 when the comparison is true. This value is
- interpreted in the mode of the comparison operation, which is given by the
- mode of the first operand in the `sCOND' pattern. Either the low bit or the
- sign bit of `STORE_FLAG_VALUE' be on. Presently, only those bits are used
- by the compiler.
-
- If `STORE_FLAG_VALUE' is neither 1 or -1, the compiler will generate code
- that depends only on the specified bits. It can also replace comparison
- operators with equivalent operations if they cause the required bits to be
- set, even if the remaining bits are undefined. For example, on a machine
- whose comparison operators return an `SImode' value and where
- `STORE_FLAG_VALUE' is defined as `0x80000000', saying that just the sign bit
- is relevant, the expression
-
- (ne:SI (and:SI X (const_int POWER-OF-2)) (const_int 0))
-
- can be converted to
-
- (ashift:SI X (const_int N))
-
- where N is the appropriate shift count to move the bit being tested into the
- sign bit.
-
- There is no way to describe a machine that always sets the low-order bit for
- a true value, but does not guarantee the value of any other bits, but we do
- not know of any machine that has such an instruction. If you are trying to
- port GNU CC to such a machine, include an instruction to perform a
- logical-and of the result with 1 in the pattern for the comparison operators
- and let us know.
-
- Often, a machine will have multiple instructions that obtain a value from a
- comparison (or the condition codes). Here are rules to guide the choice of
- value for `STORE_FLAG_VALUE', and hence the instructions to be used:
-
- * Use the shortest sequence that yields a valid definition for
- `STORE_FLAG_VALUE'. It is more efficient for the compiler to
- "normalize" the value (convert it to, e.g., 1 or 0) than for
- the comparison operators to do so because there may be
- opportunities to combine the normalization with other
- operations.
-
- * For equal-length sequences, use a value of 1 or -1, with -1
- being slightly preferred on machines with expensive jumps and
- 1 preferred on other machines.
-
- * As a second choice, choose a value of `0x80000001' if
- instructions exist that set both the sign and low-order bits
- but do not define the others.
-
- * Otherwise, use a value of `0x80000000'.
-
- Many machines can produce both the value chosen for `STORE_FLAG_VALUE' and
- its negation in the same number of instructions. On those machines, you
- should also define a pattern for those cases, e.g., one matching
-
- (set A (neg:M (ne:M B C)))
-
- Some machines can also perform `and' or `plus' operations on condition code
- values with less instructions than the corresponding `sCOND' insn followed
- by `and' or `plus'. On those machines, define the appropriate patterns.
- Use the names `incscc' and `decscc', respectively, for the the patterns
- which perform `plus' or `minus' operations on condition code values. See
- `rs6000.md' for some examples. The GNU Superoptizer can be used to find
- such instruction sequences on other machines.
-
- You need not define `STORE_FLAG_VALUE' if the machine has no store-flag
- instructions. */
-/* #define STORE_FLAG_VALUE */
-
-/* A C expression that gives a non-zero floating point value that is returned
- when comparison operators with floating-point results are true. Define this
- macro on machine that have comparison operations that return floating-point
- values. If there are no such operations, do not define this macro. */
-/* #define FLOAT_STORE_FLAG_VALUE */
-
/* An alias for the machine mode for pointers. On most machines, define this
to be the integer mode corresponding to the width of a hardware pointer;
`SImode' on 32-bit machine or `DImode' on 64-bit machines. On some machines
`QImode'. */
#define FUNCTION_MODE QImode
-/* A C expression for the maximum number of instructions above which the
- function DECL should not be inlined. DECL is a `FUNCTION_DECL' node.
-
- The default definition of this macro is 64 plus 8 times the number of
- arguments that the function accepts. Some people think a larger threshold
- should be used on RISC machines. */
-/* #define INTEGRATE_THRESHOLD(DECL) */
-
-/* Define this if the preprocessor should ignore `#sccs' directives and print
- no error message.
-
- Defined in svr4.h. */
-/* #define SCCS_DIRECTIVE */
-
-/* Define this macro if the system header files support C++ as well as C. This
- macro inhibits the usual method of using system header files in C++, which
- is to pretend that the file's contents are enclosed in `extern "C" {...}'. */
-/* #define NO_IMPLICIT_EXTERN_C */
-
-/* Define this macro if you want to implement any pragmas. If defined, it
- should be a C expression to be executed when #pragma is seen. The
- argument GETC is a function which will return the next character in the
- input stream, or EOF if no characters are left. The argument UNGETC is
- a function which will push a character back into the input stream. The
- argument NAME is the word following #pragma in the input stream. The input
- stream pointer will be pointing just beyond the end of this word. The
- expression should return true if it handled the pragma, false otherwise.
- The input stream should be left undistrubed if false is returned, otherwise
- it should be pointing at the next character after the end of the pragma.
- Any characters left between the end of the pragma and the end of the line will
- be ignored.
-
- It is generally a bad idea to implement new uses of `#pragma'. The only
- reason to define this macro is for compatibility with other compilers that
- do support `#pragma' for the sake of any user programs which already use it. */
-/* #define HANDLE_PRAGMA(GETC, UNGETC, NAME) handle_pragma (GETC, UNGETC, NAME) */
-
-/* Define this macro to handle System V style pragmas: #pragma pack and
- #pragma weak. Note, #pragma weak will only be supported if SUPPORT_WEAK is
- defined.
-
- Defined in svr4.h. */
-#define HANDLE_SYSV_PRAGMA
-
-/* Define this macro to control use of the character `$' in identifier names.
- The value should be 0, 1, or 2. 0 means `$' is not allowed by default; 1
- means it is allowed by default if `-traditional' is used; 2 means it is
- allowed by default provided `-ansi' is not used. 1 is the default; there is
- no need to define this macro in that case. */
-/* #define DOLLARS_IN_IDENTIFIERS */
-
-/* Define this macro if the assembler does not accept the character `$' in
- label names. By default constructors and destructors in G++ have `$' in the
- identifiers. If this macro is defined, `.' is used instead.
-
- Defined in svr4.h. */
-/* #define NO_DOLLAR_IN_LABEL */
-
-/* Define this macro if the assembler does not accept the character `.' in
- label names. By default constructors and destructors in G++ have names that
- use `.'. If this macro is defined, these names are rewritten to avoid `.'. */
-/* #define NO_DOT_IN_LABEL */
-
-/* Define this macro if the target system expects every program's `main'
- function to return a standard "success" value by default (if no other value
- is explicitly returned).
-
- The definition should be a C statement (sans semicolon) to generate the
- appropriate rtl instructions. It is used only when compiling the end of
- `main'. */
-/* #define DEFAULT_MAIN_RETURN */
-
-/* Define this if the target system supports the function `atexit' from the
- ANSI C standard. If this is not defined, and `INIT_SECTION_ASM_OP' is not
- defined, a default `exit' function will be provided to support C++.
-
- Defined by svr4.h */
-/* #define HAVE_ATEXIT */
-
-/* Define this if your `exit' function needs to do something besides calling an
- external function `_cleanup' before terminating with `_exit'. The
- `EXIT_BODY' macro is only needed if netiher `HAVE_ATEXIT' nor
- `INIT_SECTION_ASM_OP' are defined. */
-/* #define EXIT_BODY */
-
-/* Define this macro as a C expression that is nonzero if it is safe for the
- delay slot scheduler to place instructions in the delay slot of INSN, even
- if they appear to use a resource set or clobbered in INSN. INSN is always a
- `jump_insn' or an `insn'; GNU CC knows that every `call_insn' has this
- behavior. On machines where some `insn' or `jump_insn' is really a function
- call and hence has this behavior, you should define this macro.
-
- You need not define this macro if it would always return zero. */
-/* #define INSN_SETS_ARE_DELAYED(INSN) */
-
-/* Define this macro as a C expression that is nonzero if it is safe for the
- delay slot scheduler to place instructions in the delay slot of INSN, even
- if they appear to set or clobber a resource referenced in INSN. INSN is
- always a `jump_insn' or an `insn'. On machines where some `insn' or
- `jump_insn' is really a function call and its operands are registers whose
- use is actually in the subroutine it calls, you should define this macro.
- Doing so allows the delay slot scheduler to move instructions which copy
- arguments into the argument registers into the delay slot of INSN.
-
- You need not define this macro if it would always return zero. */
-/* #define INSN_REFERENCES_ARE_DELAYED(INSN) */
-
-/* #define MACHINE_DEPENDENT_REORG(INSN) fr30_reorg (INSN) */
-
-/* Define this macro if in some cases global symbols from one translation unit
- may not be bound to undefined symbols in another translation unit without
- user intervention. For instance, under Microsoft Windows symbols must be
- explicitly imported from shared libraries (DLLs). */
-/* #define MULTIPLE_SYMBOL_SPACES */
-
-/* A C expression for the maximum number of instructions to execute via
- conditional execution instructions instead of a branch. A value of
- BRANCH_COST+1 is the default if the machine does not use
- cc0, and 1 if it does use cc0. */
-/* #define MAX_CONDITIONAL_EXECUTE */
-
-/* Indicate how many instructions can be issued at the same time. */
-/* #define ISSUE_RATE */
-
/* If cross-compiling, don't require stdio.h etc to build libgcc.a. */
#if defined CROSS_COMPILE && ! defined inhibit_libc
#define inhibit_libc
extern struct rtx_def * fr30_compare_op1;
/*}}}*/ \f
-/*{{{ PERDICATE_CODES */
+/*{{{ PERDICATE_CODES. */
#define PREDICATE_CODES \
{ "stack_add_operand", { CONST_INT }}, \
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