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Re: [patch] comment tidy in config/i386/x86-64.h
- From: Andreas Jaeger <aj at suse dot de>
- To: Zack Weinberg <zack at codesourcery dot com>
- Cc: Nathanael Nerode <neroden at twcny dot rr dot com>, gcc-patches at gcc dot gnu dot org
- Date: Sun, 01 Jun 2003 21:03:21 +0200
- Subject: Re: [patch] comment tidy in config/i386/x86-64.h
- References: <20030524184905.GA1084@doctormoo><87smqthes4.fsf@egil.codesourcery.com> <u83citwsb4.fsf@gromit.moeb>
Andreas Jaeger <aj@suse.de> writes:
> Zack Weinberg <zack@codesourcery.com> writes:
>
>> Nathanael Nerode <neroden@twcny.rr.com> writes:
>>
>>> Submitting for approval of the target-independent comment removal.
>>
>> I pre-approve all patches which simply remove text copied from the
>> manual from tm.h files.
>
> That will make d30v.h really small ;-) Just a question who'll do it,
Ok, did it myself ;-)
I'm trying a crossbuild to d30v-elf now to verify this - and commit as
pre-approved if it passes,
Andreas
2003-06-01 Andreas Jaeger <aj@suse.de>
* config/d30v/d30v.h: Remove text copied from the manual.
============================================================
Index: gcc/config/d30v/d30v.h
--- config/d30v/d30v.h 31 May 2003 18:45:31 -0000 1.83
+++ config/d30v/d30v.h 1 Jun 2003 19:01:48 -0000
@@ -375,45 +375,6 @@ do { \
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* CRs */ \
}
-/* Zero or more C statements that may conditionally modify two variables
- `fixed_regs' and `call_used_regs' (both of type `char []') after they have
- been initialized from the two preceding macros.
-
- This is necessary in case the fixed or call-clobbered registers depend on
- target flags.
-
- You need not define this macro if it has no work to do.
-
- If the usage of an entire class of registers depends on the target flags,
- you may indicate this to GCC by using this macro to modify `fixed_regs' and
- `call_used_regs' to 1 for each of the registers in the classes which should
- not be used by GCC. Also define the macro `REG_CLASS_FROM_LETTER' to return
- `NO_REGS' if it is called with a letter for a class that shouldn't be used.
-
- (However, if this class is not included in `GENERAL_REGS' and all of the
- insn patterns whose constraints permit this class are controlled by target
- switches, then GCC will automatically avoid using these registers when the
- target switches are opposed to them.) */
-/* #define CONDITIONAL_REGISTER_USAGE */
-
-/* If this macro is defined and has a nonzero value, it means that `setjmp' and
- related functions fail to save the registers, or that `longjmp' fails to
- restore them. To compensate, the compiler avoids putting variables in
- registers in functions that use `setjmp'. */
-/* #define NON_SAVING_SETJMP */
-
-/* Define this macro if the target machine has register windows. This C
- expression returns the register number as seen by the called function
- corresponding to the register number OUT as seen by the calling function.
- Return OUT if register number OUT is not an outbound register. */
-/* #define INCOMING_REGNO(OUT) */
-
-/* Define this macro if the target machine has register windows. This C
- expression returns the register number as seen by the calling function
- corresponding to the register number IN as seen by the called function.
- Return IN if register number IN is not an inbound register. */
-/* #define OUTGOING_REGNO(IN) */
-
/* Order of allocation of registers */
@@ -469,19 +430,6 @@ do { \
ARG_POINTER_REGNUM, \
}
-/* A C statement (sans semicolon) to choose the order in which to allocate hard
- registers for pseudo-registers local to a basic block.
-
- Store the desired register order in the array `reg_alloc_order'. Element 0
- should be the register to allocate first; element 1, the next register; and
- so on.
-
- The macro body should not assume anything about the contents of
- `reg_alloc_order' before execution of the macro.
-
- On most machines, it is not necessary to define this macro. */
-/* #define ORDER_REGS_FOR_LOCAL_ALLOC */
-
/* How Values Fit in Registers */
@@ -580,34 +528,6 @@ extern unsigned char modes_tieable_p[];
#define AVOID_CCMODE_COPIES
-/* Handling Leaf Functions */
-
-/* A C initializer for a vector, indexed by hard register number, which
- contains 1 for a register that is allowable in a candidate for leaf function
- treatment.
-
- If leaf function treatment involves renumbering the registers, then the
- registers marked here should be the ones before renumbering--those that GNU
- CC would ordinarily allocate. The registers which will actually be used in
- the assembler code, after renumbering, should not be marked with 1 in this
- vector.
-
- Define this macro only if the target machine offers a way to optimize the
- treatment of leaf functions. */
-/* #define LEAF_REGISTERS */
-
-/* A C expression whose value is the register number to which REGNO should be
- renumbered, when a function is treated as a leaf function.
-
- If REGNO is a register number which should not appear in a leaf function
- before renumbering, then the expression should yield -1, which will cause
- the compiler to abort.
-
- Define this macro only if the target machine offers a way to optimize the
- treatment of leaf functions, and registers need to be renumbered to do this. */
-/* #define LEAF_REG_REMAP(REGNO) */
-
-
/* Register Classes */
/* An enumeral type that must be defined with all the register class names as
@@ -795,25 +715,6 @@ extern enum reg_class reg_class_from_let
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
@@ -872,67 +773,6 @@ extern enum reg_class reg_class_from_let
: (CLASS) == ACCUM_REGS ? EVEN_REGS \
: GPR_REGS)
-/* #define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, X) */
-/* #define SECONDARY_OUTPUT_RELOAD_CLASS(CLASS, MODE, X) */
-
-/* Certain machines have the property that some registers cannot be copied to
- some other registers without using memory. Define this macro on those
- machines to be a C expression that is nonzero if objects of mode M in
- registers of CLASS1 can only be copied to registers of class CLASS2 by
- storing a register of CLASS1 into memory and loading that memory location
- into a register of CLASS2.
-
- Do not define this macro if its value would always be zero. */
-/* #define SECONDARY_MEMORY_NEEDED(CLASS1, CLASS2, M) */
-
-/* Normally when `SECONDARY_MEMORY_NEEDED' is defined, the compiler allocates a
- stack slot for a memory location needed for register copies. If this macro
- is defined, the compiler instead uses the memory location defined by this
- macro.
-
- Do not define this macro if you do not define
- `SECONDARY_MEMORY_NEEDED'. */
-/* #define SECONDARY_MEMORY_NEEDED_RTX(MODE) */
-
-/* When the compiler needs a secondary memory location to copy between two
- registers of mode MODE, it normally allocates sufficient memory to hold a
- quantity of `BITS_PER_WORD' bits and performs the store and load operations
- in a mode that many bits wide and whose class is the same as that of MODE.
-
- This is right thing to do on most machines because it ensures that all bits
- of the register are copied and prevents accesses to the registers in a
- narrower mode, which some machines prohibit for floating-point registers.
-
- However, this default behavior is not correct on some machines, such as the
- DEC Alpha, that store short integers in floating-point registers differently
- than in integer registers. On those machines, the default widening will not
- work correctly and you must define this macro to suppress that widening in
- some cases. See the file `alpha.h' for details.
-
- Do not define this macro if you do not define `SECONDARY_MEMORY_NEEDED' or
- if widening MODE to a mode that is `BITS_PER_WORD' bits wide is correct for
- your machine. */
-/* #define SECONDARY_MEMORY_NEEDED_MODE(MODE) */
-
-/* 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 nonzero value on
- these machines. When this macro has a nonzero 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 nonzero 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
- nonzero 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.
@@ -1053,14 +893,6 @@ typedef struct d30v_stack {
matter. */
#define STACK_GROWS_DOWNWARD 1
-/* Define this macro if the addresses of local variable slots are at negative
- offsets from the frame pointer. */
-/* #define FRAME_GROWS_DOWNWARD */
-
-/* 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.
@@ -1072,14 +904,6 @@ typedef struct d30v_stack {
(D30V_ALIGN (current_function_outgoing_args_size, \
(STACK_BOUNDARY / BITS_PER_UNIT)))
-/* Offset from the stack pointer register to the first location at which
- outgoing arguments are placed. If not specified, the default value of zero
- is used. This is the proper value for most machines.
-
- If `ARGS_GROW_DOWNWARD', this is the offset to the location above the first
- location at which outgoing arguments are placed. */
-/* #define STACK_POINTER_OFFSET */
-
/* Offset from the argument pointer register to the first argument's address.
On some machines it may depend on the data type of the function.
@@ -1087,29 +911,6 @@ typedef struct d30v_stack {
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) */
-
-/* If defined, a C expression that produces the machine-specific code to setup
- the stack so that arbitrary frames can be accessed. For example, on the
- SPARC, we must flush all of the register windows to the stack before we can
- access arbitrary stack frames. This macro will seldom need to be defined. */
-/* #define SETUP_FRAME_ADDRESSES() */
-
/* 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
@@ -1130,10 +931,6 @@ typedef struct d30v_stack {
#define RETURN_ADDR_RTX(COUNT, FRAME) \
((COUNT) == 0 ? d30v_return_addr() : const0_rtx)
-/* 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',
@@ -1161,53 +958,6 @@ typedef struct d30v_stack {
#define INIT_EXPANDERS d30v_init_expanders ()
-/* Stack Checking. */
-
-/* A nonzero value if stack checking is done by the configuration files in a
- machine-dependent manner. You should define this macro if stack checking is
- require by the ABI of your machine or if you would like to have to stack
- checking in some more efficient way than GNU CC's portable approach. The
- default value of this macro is zero. */
-/* #define STACK_CHECK_BUILTIN */
-
-/* An integer representing the interval at which GNU CC must generate stack
- probe instructions. You will normally define this macro to be no larger
- than the size of the "guard pages" at the end of a stack area. The default
- value of 4096 is suitable for most systems. */
-/* #define STACK_CHECK_PROBE_INTERVAL */
-
-/* An integer which is nonzero if GNU CC should perform the stack probe as a
- load instruction and zero if GNU CC should use a store instruction. The
- default is zero, which is the most efficient choice on most systems. */
-/* #define STACK_CHECK_PROBE_LOAD */
-
-/* The number of bytes of stack needed to recover from a stack overflow, for
- languages where such a recovery is supported. The default value of 75 words
- should be adequate for most machines. */
-/* #define STACK_CHECK_PROTECT */
-
-/* The maximum size of a stack frame, in bytes. GNU CC will generate probe
- instructions in non-leaf functions to ensure at least this many bytes of
- stack are available. If a stack frame is larger than this size, stack
- checking will not be reliable and GNU CC will issue a warning. The default
- is chosen so that GNU CC only generates one instruction on most systems.
- You should normally not change the default value of this macro. */
-/* #define STACK_CHECK_MAX_FRAME_SIZE */
-
-/* GNU CC uses this value to generate the above warning message. It represents
- the amount of fixed frame used by a function, not including space for any
- callee-saved registers, temporaries and user variables. You need only
- specify an upper bound for this amount and will normally use the default of
- four words. */
-/* #define STACK_CHECK_FIXED_FRAME_SIZE */
-
-/* The maximum size, in bytes, of an object that GNU CC will place in the fixed
- area of the stack frame when the user specifies `-fstack-check'. GNU CC
- computed the default from the values of the above macros and you will
- normally not need to override that default. */
-/* #define STACK_CHECK_MAX_VAR_SIZE */
-
-
/* Register That Address the Stack Frame. */
/* The register number of the stack pointer register, which must also be a
@@ -1221,44 +971,6 @@ typedef struct d30v_stack {
register you wish for this purpose. */
#define FRAME_POINTER_REGNUM GPR_FP
-/* 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
- this is. On other machines, you can choose any register you wish for this
- purpose. If this is not the same register as the frame pointer register,
- then you must mark it as a fixed register according to `FIXED_REGISTERS', or
- arrange to be able to eliminate it (*note Elimination::.). */
-/* #define ARG_POINTER_REGNUM */
-
-/* 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 */
-
/* Register numbers used for passing a function's static chain pointer. If
register windows are used, the register number as seen by the called
function is `STATIC_CHAIN_INCOMING_REGNUM', while the register number as
@@ -1271,22 +983,6 @@ typedef struct d30v_stack {
instead, the next two macros should be defined. */
#define STATIC_CHAIN_REGNUM (GPR_FIRST + 18)
-/* #define STATIC_CHAIN_INCOMING_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 */
/* Eliminating the Frame Pointer and the Arg Pointer */
@@ -1311,18 +1007,6 @@ typedef struct d30v_stack {
register. See `FIXED_REGISTERS' for more information. */
#define FRAME_POINTER_REQUIRED 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
@@ -1382,30 +1066,6 @@ typedef struct d30v_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
- avoiding errors in certain cases of mismatch, it also makes for better code
- on certain machines. */
-/* #define PROMOTE_PROTOTYPES */
-
-/* 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
@@ -1416,59 +1076,6 @@ typedef struct d30v_stack {
proper. */
#define ACCUMULATE_OUTGOING_ARGS 1
-/* 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.
@@ -1584,16 +1191,6 @@ typedef struct d30v_stack {
MUST_PASS_IN_STACK (MODE, TYPE) */
#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) 0
-/* 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) */
-
/* A C type for declaring a variable that is used as the first argument of
`FUNCTION_ARG' and other related values. For some target machines, the type
`int' suffices and can hold the number of bytes of argument so far.
@@ -1648,20 +1245,6 @@ typedef struct d30v_stack {
#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
d30v_function_arg_advance (&CUM, (int) MODE, TYPE, NAMED)
-/* 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. */
@@ -1703,22 +1286,6 @@ typedef struct d30v_stack {
#define FUNCTION_VALUE(VALTYPE, FUNC) \
gen_rtx (REG, TYPE_MODE (VALTYPE), GPR_RET_VALUE)
-/* Define this macro if the target machine has "register windows" so that the
- register in which a function returns its value is not the same as the one in
- which the caller sees the value.
-
- For such machines, `FUNCTION_VALUE' computes the register in which the
- caller will see the value. `FUNCTION_OUTGOING_VALUE' should be defined in a
- similar fashion to tell the function where to put the value.
-
- If `FUNCTION_OUTGOING_VALUE' is not defined, `FUNCTION_VALUE' serves both
- purposes.
-
- `FUNCTION_OUTGOING_VALUE' is not used for return vales with aggregate data
- types, because these are returned in another way. See `STRUCT_VALUE_REGNUM'
- and related macros, below. */
-/* #define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) */
-
/* A C expression to create an RTX representing the place where a library
function returns a value of mode MODE. If the precise function being called
is known, FUNC is a tree node (`FUNCTION_DECL') for it; otherwise, FUNC is a
@@ -1749,40 +1316,9 @@ typedef struct d30v_stack {
#define FUNCTION_VALUE_REGNO_P(REGNO) ((REGNO) == GPR_RET_VALUE)
-/* 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 */
-
/* 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) */
-
-/* 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 needed for compatibility with other compilers or with an ABI. If you
- define this macro to be 0, then the conventions used for structure and union
- return values are decided by the `RETURN_IN_MEMORY' macro.
-
- If not defined, this defaults to the value 1. */
-/* #define DEFAULT_PCC_STRUCT_RETURN */
-
/* If the structure value address is passed in a register, then
`STRUCT_VALUE_REGNUM' should be the number of that register. */
@@ -1795,90 +1331,13 @@ typedef struct d30v_stack {
#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 */
-
-
-/* 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) */
-
-/* #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) ((REGNO) == GPR_LINK)
-/* 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 function
- output_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 structure for machine-specific, per-function data.
This is added to the cfun structure. */
typedef struct machine_function GTY(())
@@ -1904,10 +1363,6 @@ typedef struct machine_function GTY(())
#define FUNCTION_PROFILER(FILE, LABELNO) d30v_function_profiler (FILE, 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 */
-
/* Implementing the Varargs Macros. */
@@ -1955,17 +1410,6 @@ typedef struct machine_function GTY(())
d30v_setup_incoming_varargs (&ARGS_SO_FAR, (int) MODE, TYPE, \
&PRETEND_ARGS_SIZE, SECOND_TIME)
-/* Define this macro if the location where a function argument is passed
- depends on whether or not it is a named argument.
-
- This macro controls how the NAMED argument to `FUNCTION_ARG' is set for
- varargs and stdarg functions. With this macro defined, the NAMED argument
- is always true for named arguments, and false for unnamed arguments. If
- this is not defined, but `SETUP_INCOMING_VARARGS' is defined, then all
- arguments are treated as named. Otherwise, all named arguments except the
- last are treated as named. */
-/* #define STRICT_ARGUMENT_NAMING */
-
/* Build up the stdarg/varargs va_list type tree, assinging it to NODE. If not
defined, it is assumed that va_list is a void * pointer. */
@@ -1997,17 +1441,6 @@ typedef struct machine_function GTY(())
/* Trampolines for Nested Functions. */
-/* A C statement to output, on the stream FILE, assembler code for a block of
- data that contains the constant parts of a trampoline. This code should not
- include a label--the label is taken care of automatically. */
-/* #define TRAMPOLINE_TEMPLATE(FILE) d30v_trampoline_template (FILE) */
-
-/* The name of a subroutine to switch to the section in which the trampoline
- template is to be placed (*note Sections::.). 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 (d30v_trampoline_size ())
@@ -2024,163 +1457,6 @@ typedef struct machine_function GTY(())
#define INITIALIZE_TRAMPOLINE(ADDR, FNADDR, STATIC_CHAIN) \
d30v_initialize_trampoline (ADDR, FNADDR, STATIC_CHAIN)
-/* 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 */
-
-
-/* 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 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 */
-
/* Addressing Modes */
@@ -2302,109 +1578,6 @@ do { \
#define LEGITIMATE_CONSTANT_P(X) 1
-/* 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 C compound statement to set the components of `cc_status' appropriately
- for an insn INSN whose body is EXP. It is this macro's responsibility to
- recognize insns that set the condition code as a byproduct of other activity
- as well as those that explicitly set `(cc0)'.
-
- This macro is not used on machines that do not use `cc0'.
-
- If there are insns that do not set the condition code but do alter other
- machine registers, this macro must check to see whether they invalidate the
- expressions that the condition code is recorded as reflecting. For example,
- on the 68000, insns that store in address registers do not set the condition
- code, which means that usually `NOTICE_UPDATE_CC' can leave `cc_status'
- unaltered for such insns. But suppose that the previous insn set the
- condition code based on location `a4@(102)' and the current insn stores a
- new value in `a4'. Although the condition code is not changed by this, it
- will no longer be true that it reflects the contents of `a4@(102)'.
- Therefore, `NOTICE_UPDATE_CC' must alter `cc_status' in this case to say
- that nothing is known about the condition code value.
-
- The definition of `NOTICE_UPDATE_CC' must be prepared to deal with the
- results of peephole optimization: insns whose patterns are `parallel' RTXs
- containing various `reg', `mem' or constants which are just the operands.
- The RTL structure of these insns is not sufficient to indicate what the
- insns actually do. What `NOTICE_UPDATE_CC' should do when it sees one is
- just to run `CC_STATUS_INIT'.
-
- A possible definition of `NOTICE_UPDATE_CC' is to call a function that looks
- at an attribute (*note Insn Attributes::.) named, for example, `cc'. This
- avoids having detailed information about patterns in two places, the `md'
- file and in `NOTICE_UPDATE_CC'. */
-/* #define NOTICE_UPDATE_CC(EXP, INSN) */
-
-/* A list of names to be used for additional modes for condition code values in
- registers (*note Jump Patterns::.). 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) */
-
-
/* Describing Relative Costs of Operations */
/* A C expression for the cost of moving data from a register in class FROM to
@@ -2463,38 +1636,10 @@ extern const char *d30v_branch_cost_stri
same word of the structure, but to different bytes. */
#define SLOW_BYTE_ACCESS 1
-/* 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 nonzero, the compiler will act as if `STRICT_ALIGNMENT'
- were nonzero when generating code for block moves. This can cause
- significantly more instructions to be produced. Therefore, do not set this
- macro nonzero 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 */
-
-/* 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 */
-
/* Dividing the output into sections. */
@@ -2508,11 +1653,6 @@ extern const char *d30v_branch_cost_stri
`".data"' is right. */
#define DATA_SECTION_ASM_OP "\t.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
@@ -2522,102 +1662,9 @@ extern const char *d30v_branch_cost_stri
used. */
#define BSS_SECTION_ASM_OP "\t.section .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 */
-
-/* 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 */
-
-/* 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 `PIC_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) */
-
/* The Overall Framework of an Assembler File. */
-/* A C expression which outputs to the stdio stream STREAM some appropriate
- text to go at the start of an assembler file.
-
- Normally this macro is defined to output a line containing `#NO_APP', which
- is a comment that has no effect on most assemblers but tells the GNU
- assembler that it can save time by not checking for certain assembler
- constructs.
-
- On systems that use SDB, it is necessary to output certain commands; see
- `attasm.h'.
-
- Defined in svr4.h. */
-
-/* #define ASM_FILE_START(STREAM) \
- output_file_directive ((STREAM), main_input_filename) */
-
-/* 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 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. */
@@ -2635,465 +1682,21 @@ extern const char *d30v_branch_cost_stri
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) */
-
-
-/* Output of Data. */
-
-/* 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 nonzero 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:
-
- (*targetm.asm_out.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) */
-
-/* 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 provided by `real.h' for writing the definitions of
- `ASM_OUTPUT_DOUBLE' and the like: */
-
-
-/* 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) */
-
/* Output and Generation of Labels. */
-/* 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) */
-
/* Globalizing directive for a label. */
#define GLOBAL_ASM_OP "\t.globl "
-/* 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 store into the string STRING a label whose name is made
- from the string PREFIX and the number NUM.
-
- This string, when output subsequently by `assemble_name', should produce the
- output that `(*targetm.asm_out.internal_label)' would produce with the same PREFIX
- and NUM.
-
- If the string begins with `*', then `assemble_name' will output the rest of
- the string unchanged. It is often convenient for
- `ASM_GENERATE_INTERNAL_LABEL' to use `*' in this way. If the string doesn't
- start with `*', then `ASM_OUTPUT_LABELREF' gets to output the string, and
- may change it. (Of course, `ASM_OUTPUT_LABELREF' is also part of your
- machine description, so you should know what it does on your machine.)
-
- Defined in svr4.h. */
-
-/*
-#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \
-do { \
- sprintf (LABEL, "*.%s%d", PREFIX, NUM); \
-} 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) */
-
/* 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
-/* 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) */
-
/* Output of Assembler Instructions. */
@@ -3160,55 +1763,6 @@ do { \
{"cr17", CR_INT_M} \
}
-/* 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.
@@ -3264,22 +1818,6 @@ do { \
#define PRINT_OPERAND_ADDRESS(STREAM, X) d30v_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
@@ -3292,38 +1830,6 @@ do { \
#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 (*note Output Template::.) 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) */
-
/* Output of dispatch tables. */
@@ -3354,83 +1860,9 @@ fprintf (STREAM, "\t.word .L%d-.L%d\n",
#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 `(*targetm.asm_out.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
- `(*targetm.asm_out.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) */
-
-
-/* Assembler Commands for Exception Regions. */
-
-/* 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'), 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 */
-
/* 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) */
-
-/* A C statement to output to the stdio stream STREAM an assembler instruction
- to advance the location counter by NBYTES bytes. Those bytes should be zero
- when loaded. NBYTES will be a C expression of type `int'.
-
- Defined in svr4.h. */
-/* #define ASM_OUTPUT_SKIP(STREAM, NBYTES) \
- fprintf (STREAM, "\t.zero\t%u\n", (NBYTES)) */
-
-/* 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'. */
@@ -3477,18 +1909,6 @@ fprintf (STREAM, "\t.word .L%d\n", VALUE
: (REGNO) == CR_INT_M ? (66 + 17) \
: -1)
-/* 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,
@@ -3505,284 +1925,6 @@ fprintf (STREAM, "\t.word .L%d\n", VALUE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
-/* Specific Options for DBX Output. */
-
-/* Define this macro if GNU CC should produce debugging output for DBX in
- response to the `-g' option.
-
- Defined in svr4.h. */
-/* #define DBX_DEBUGGING_INFO */
-
-/* Define this macro if GNU CC should produce XCOFF format debugging output in
- response to the `-g' option. This is a variant of DBX format. */
-/* #define XCOFF_DEBUGGING_INFO */
-
-/* Define this macro to control whether GNU CC should by default generate GDB's
- extended version of DBX debugging information (assuming DBX-format debugging
- information is enabled at all). If you don't define the macro, the default
- is 1: always generate the extended information if there is any occasion to. */
-/* #define DEFAULT_GDB_EXTENSIONS */
-
-/* Define this macro if all `.stabs' commands should be output while in the
- text section. */
-/* #define DEBUG_SYMS_TEXT */
-
-/* A C string constant naming the assembler pseudo op to use instead of
- `.stabs' to define an ordinary debugging symbol. If you don't define this
- macro, `.stabs' is used. This macro applies only to DBX debugging
- information format. */
-/* #define ASM_STABS_OP */
-
-/* A C string constant naming the assembler pseudo op to use instead of
- `.stabd' to define a debugging symbol whose value is the current location.
- If you don't define this macro, `.stabd' is used. This macro applies only
- to DBX debugging information format. */
-/* #define ASM_STABD_OP */
-
-/* A C string constant naming the assembler pseudo op to use instead of
- `.stabn' to define a debugging symbol with no name. If you don't define
- this macro, `.stabn' is used. This macro applies only to DBX debugging
- information format. */
-/* #define ASM_STABN_OP */
-
-/* Define this macro if DBX on your system does not support the construct
- `xsTAGNAME'. On some systems, this construct is used to describe a forward
- reference to a structure named TAGNAME. On other systems, this construct is
- not supported at all. */
-/* #define DBX_NO_XREFS */
-
-/* A symbol name in DBX-format debugging information is normally continued
- (split into two separate `.stabs' directives) when it exceeds a certain
- length (by default, 80 characters). On some operating systems, DBX requires
- this splitting; on others, splitting must not be done. You can inhibit
- splitting by defining this macro with the value zero. You can override the
- default splitting-length by defining this macro as an expression for the
- length you desire. */
-/* #define DBX_CONTIN_LENGTH */
-
-/* Normally continuation is indicated by adding a `\' character to the end of a
- `.stabs' string when a continuation follows. To use a different character
- instead, define this macro as a character constant for the character you
- want to use. Do not define this macro if backslash is correct for your
- system. */
-/* #define DBX_CONTIN_CHAR */
-
-/* Define this macro if it is necessary to go to the data section before
- outputting the `.stabs' pseudo-op for a non-global static variable. */
-/* #define DBX_STATIC_STAB_DATA_SECTION */
-
-/* The value to use in the "code" field of the `.stabs' directive for a
- typedef. The default is `N_LSYM'. */
-/* #define DBX_TYPE_DECL_STABS_CODE */
-
-/* The value to use in the "code" field of the `.stabs' directive for a static
- variable located in the text section. DBX format does not provide any
- "right" way to do this. The default is `N_FUN'. */
-/* #define DBX_STATIC_CONST_VAR_CODE */
-
-/* The value to use in the "code" field of the `.stabs' directive for a
- parameter passed in registers. DBX format does not provide any "right" way
- to do this. The default is `N_RSYM'. */
-/* #define DBX_REGPARM_STABS_CODE */
-
-/* The letter to use in DBX symbol data to identify a symbol as a parameter
- passed in registers. DBX format does not customarily provide any way to do
- this. The default is `'P''. */
-/* #define DBX_REGPARM_STABS_LETTER */
-
-/* The letter to use in DBX symbol data to identify a symbol as a stack
- parameter. The default is `'p''. */
-/* #define DBX_MEMPARM_STABS_LETTER */
-
-/* Define this macro if the DBX information for a function and its arguments
- should precede the assembler code for the function. Normally, in DBX
- format, the debugging information entirely follows the assembler code.
-
- Defined in svr4.h. */
-/* #define DBX_FUNCTION_FIRST */
-
-/* Define this macro if the `N_LBRAC' symbol for a block should precede the
- debugging information for variables and functions defined in that block.
- Normally, in DBX format, the `N_LBRAC' symbol comes first. */
-/* #define DBX_LBRAC_FIRST */
-
-/* Define this macro if the value of a symbol describing the scope of a block
- (`N_LBRAC' or `N_RBRAC') should be relative to the start of the enclosing
- function. Normally, GNU C uses an absolute address.
-
- Defined in svr4.h. */
-/* #define DBX_BLOCKS_FUNCTION_RELATIVE */
-
-/* Define this macro if GNU C should generate `N_BINCL' and `N_EINCL'
- stabs for included header files, as on Sun systems. This macro
- also directs GNU C to output a type number as a pair of a file
- number and a type number within the file. Normally, GNU C does not
- generate `N_BINCL' or `N_EINCL' stabs, and it outputs a single
- number for a type number. */
-/* #define DBX_USE_BINCL */
-
-
-/* Open ended Hooks for DBX Output. */
-
-/* Define this macro to say how to output to STREAM the debugging information
- for the start of a scope level for variable names. The argument NAME is the
- name of an assembler symbol (for use with `assemble_name') whose value is
- the address where the scope begins. */
-/* #define DBX_OUTPUT_LBRAC(STREAM, NAME) */
-
-/* Like `DBX_OUTPUT_LBRAC', but for the end of a scope level. */
-/* #define DBX_OUTPUT_RBRAC(STREAM, NAME) */
-
-/* Define this macro if the target machine requires special handling to output
- an enumeration type. The definition should be a C statement (sans
- semicolon) to output the appropriate information to STREAM for the type
- TYPE. */
-/* #define DBX_OUTPUT_ENUM(STREAM, TYPE) */
-
-/* Define this macro if the target machine requires special output at the end
- of the debugging information for a function. The definition should be a C
- statement (sans semicolon) to output the appropriate information to STREAM.
- FUNCTION is the `FUNCTION_DECL' node for the function. */
-/* #define DBX_OUTPUT_FUNCTION_END(STREAM, FUNCTION) */
-
-/* Define this macro if you need to control the order of output of the standard
- data types at the beginning of compilation. The argument SYMS is a `tree'
- which is a chain of all the predefined global symbols, including names of
- data types.
-
- Normally, DBX output starts with definitions of the types for integers and
- characters, followed by all the other predefined types of the particular
- language in no particular order.
-
- On some machines, it is necessary to output different particular types
- first. To do this, define `DBX_OUTPUT_STANDARD_TYPES' to output those
- symbols in the necessary order. Any predefined types that you don't
- explicitly output will be output afterward in no particular order.
-
- Be careful not to define this macro so that it works only for C. There are
- no global variables to access most of the built-in types, because another
- language may have another set of types. The way to output a particular type
- is to look through SYMS to see if you can find it. Here is an example:
-
- {
- tree decl;
- for (decl = syms; decl; decl = TREE_CHAIN (decl))
- if (!strcmp (IDENTIFIER_POINTER (DECL_NAME (decl)),
- "long int"))
- dbxout_symbol (decl);
- ...
- }
-
- This does nothing if the expected type does not exist.
-
- See the function `init_decl_processing' in `c-decl.c' to find the names to
- use for all the built-in C types. */
-/* #define DBX_OUTPUT_STANDARD_TYPES(SYMS) */
-
-/* Some stabs encapsulation formats (in particular ECOFF), cannot
- handle the `.stabs "",N_FUN,,0,0,Lscope-function-1' gdb dbx
- extension construct. On those machines, define this macro to turn
- this feature off without disturbing the rest of the gdb extensions. */
-/* #define NO_DBX_FUNCTION_END */
-
-
-/* File names in DBX format. */
-
-/* Define this if DBX wants to have the current directory recorded in each
- object file.
-
- Note that the working directory is always recorded if GDB extensions are
- enabled. */
-/* #define DBX_WORKING_DIRECTORY */
-
-/* A C statement to output DBX debugging information to the stdio stream STREAM
- which indicates that file NAME is the main source file--the file specified
- as the input file for compilation. This macro is called only once, at the
- beginning of compilation.
-
- This macro need not be defined if the standard form of output for DBX
- debugging information is appropriate.
-
- Defined in svr4.h. */
-/* #define DBX_OUTPUT_MAIN_SOURCE_FILENAME(STREAM, NAME) */
-
-/* A C statement to output DBX debugging information to the stdio stream STREAM
- which indicates that the current directory during compilation is named NAME.
-
- This macro need not be defined if the standard form of output for DBX
- debugging information is appropriate. */
-/* #define DBX_OUTPUT_MAIN_SOURCE_DIRECTORY(STREAM, NAME) */
-
-/* A C statement to output DBX debugging information at the end of compilation
- of the main source file NAME.
-
- If you don't define this macro, nothing special is output at the end of
- compilation, which is correct for most machines. */
-/* #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(STREAM, NAME) */
-
-/* A C statement to output DBX debugging information to the stdio stream STREAM
- which indicates that file NAME is the current source file. This output is
- generated each time input shifts to a different source file as a result of
- `#include', the end of an included file, or a `#line' command.
-
- This macro need not be defined if the standard form of output for DBX
- debugging information is appropriate. */
-/* #define DBX_OUTPUT_SOURCE_FILENAME(STREAM, NAME) */
-
-
-/* Macros for SDB and Dwarf Output. */
-
-/* Define this macro if GNU CC should produce COFF-style debugging output for
- SDB in response to the `-g' option. */
-/* #define SDB_DEBUGGING_INFO */
-
-/* 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 output_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 SDB_ALLOW_FORWARD_REFERENCES */
-
-
-
/* Miscellaneous Parameters. */
/* Define this if you have defined special-purpose predicates in the file
@@ -3869,23 +2011,6 @@ fprintf (STREAM, "\t.word .L%d\n", VALUE
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. */
@@ -3909,45 +2034,10 @@ fprintf (STREAM, "\t.word .L%d\n", VALUE
/* Define if loading short immediate values into registers sign extends. */
#define SHORT_IMMEDIATES_SIGN_EXTEND
-/* 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 */
-
/* The maximum number of bytes that a single instruction can move quickly from
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 nonzero, 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 bit-field operations), or if no variable-position bit-field 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.
@@ -3960,90 +2050,6 @@ fprintf (STREAM, "\t.word .L%d\n", VALUE
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 (*note How to Report Bugs: Bug Reporting.).
-
- 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 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 nonzero 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
@@ -4060,82 +2066,10 @@ fprintf (STREAM, "\t.word .L%d\n", VALUE
`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 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 to handle System V style pragmas (particularly #pack).
Defined in svr4.h. */
#define HANDLE_SYSV_PRAGMA 1
-
-/* Define this macro if you want to handle #pragma weak (HANDLE_SYSV_PRAGMA
- must also be defined). */
-/* #define HANDLE_WEAK_PRAGMA */
-
-/* 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 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 `NEED_ATEXIT' is defined and
- `ON_EXIT' is not 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 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
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj