alpha.h, [...]: Remove commented out target macro definitions and non-target-specific comments...

	* config/alpha/alpha.h, config/arc/arc.h, config/avr/avr.h,
	config/c4x/c4x.h, config/d30v/d30v.h, config/dsp16xx/dsp16xx.h,
	config/fr30/fr30.h, config/ia64/ia64.h, config/m68hc11/m68hc11.h,
	config/mips/mips.h, config/rs6000/rs6000.h, config/sparc/sparc.h,
	config/stormy16/stormy16.h, config/v850/v850.h: Remove commented
	out target macro definitions and non-target-specific comments
	mostly taken from old versions of the manual.

From-SVN: r49033

gcc/ChangeLog

+2002-01-21  Joseph S. Myers  <jsm28@cam.ac.uk>
+
+	* config/alpha/alpha.h, config/arc/arc.h, config/avr/avr.h,
+	config/c4x/c4x.h, config/d30v/d30v.h, config/dsp16xx/dsp16xx.h,
+	config/fr30/fr30.h, config/ia64/ia64.h, config/m68hc11/m68hc11.h,
+	config/mips/mips.h, config/rs6000/rs6000.h, config/sparc/sparc.h,
+	config/stormy16/stormy16.h, config/v850/v850.h: Remove commented
+	out target macro definitions and non-target-specific comments
+	mostly taken from old versions of the manual.
+
 2002-01-20  Kazu Hirata  <kazu@hxi.com>
 
 	* config/h8300/h8300.h: Fix comment formatting.

gcc/config/alpha/alpha.h

@@ -268,23 +268,6 @@ extern enum alpha_fp_trap_mode alpha_fptm;
 #endif
 #endif
 
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
-   command options that have values.  Its definition is an initializer
-   with a subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the fixed
-   part of the option name, and the address of a variable.  The
-   variable, type `char *', is set to the variable part of the given
-   option if the fixed part matches.  The actual option name is made
-   by appending `-m' to the specified name.
-
-   Here is an example which defines `-mshort-data-NUMBER'.  If the
-   given option is `-mshort-data-512', the variable `m88k_short_data'
-   will be set to the string `"512"'.
-
-	extern char *m88k_short_data;
-	#define TARGET_OPTIONS { { "short-data-", &m88k_short_data } }  */
-
 extern const char *alpha_cpu_string;	/* For -mcpu= */
 extern const char *alpha_tune_string;	/* For -mtune= */
 extern const char *alpha_fprm_string;	/* For -mfp-rounding-mode=[n|m|c|d] */

gcc/config/arc/arc.h

@@ -130,23 +130,6 @@ extern int target_flags;
 /* Non-zero means the cpu has a barrel shifter.  */
 #define TARGET_SHIFTER 0
 
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
-   command options that have values.  Its definition is an
-   initializer with a subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the
-   fixed part of the option name, and the address of a variable. 
-   The variable, type `char *', is set to the variable part of the
-   given option if the fixed part matches.  The actual option name
-   is made by appending `-m' to the specified name.
-
-   Here is an example which defines `-mshort-data-NUMBER'.  If the
-   given option is `-mshort-data-512', the variable `m88k_short_data'
-   will be set to the string `"512"'.
-
-	extern char *m88k_short_data;
-	#define TARGET_OPTIONS { { "short-data-", &m88k_short_data } }  */
-
 extern const char *arc_cpu_string;
 extern const char *arc_text_string,*arc_data_string,*arc_rodata_string;
 

gcc/config/avr/avr.h

@@ -23,23 +23,6 @@ Boston, MA 02111-1307, USA.  */
 /* Names to predefine in the preprocessor for this target machine. */
 
 #define CPP_PREDEFINES "-DAVR"
-/* Define this to be a string constant containing `-D' options to
-   define the predefined macros that identify this machine and system.
-   These macros will be predefined unless the `-ansi' option is
-   specified.
-
-   In addition, a parallel set of macros are predefined, whose names
-   are made by appending `__' at the beginning and at the end.  These
-   `__' macros are permitted by the ANSI standard, so they are
-   predefined regardless of whether `-ansi' is specified.
-
-   For example, on the Sun, one can use the following value:
-
-   "-Dmc68000 -Dsun -Dunix"
-
-   The result is to define the macros `__mc68000__', `__sun__' and
-   `__unix__' unconditionally, and the macros `mc68000', `sun' and
-   `unix' provided `-ansi' is not specified.  */
 
 
 /* This declaration should be present. */
@@ -71,25 +54,6 @@ extern int target_flags;
 #define TARGET_RTL_DUMP		(target_flags & MASK_RTL_DUMP)
 #define TARGET_ALL_DEBUG 	(target_flags & MASK_ALL_DEBUG)
 
-/* `TARGET_...'
-   This series of macros is to allow compiler command arguments to
-   enable or disable the use of optional features of the target
-   machine.  For example, one machine description serves both the
-   68000 and the 68020; a command argument tells the compiler whether
-   it should use 68020-only instructions or not.  This command
-   argument works by means of a macro `TARGET_68020' that tests a bit
-   in `target_flags'.
-
-   Define a macro `TARGET_FEATURENAME' for each such option.  Its
-   definition should test a bit in `target_flags'; for example:
-
-   #define TARGET_68020 (target_flags & 1)
-
-   One place where these macros are used is in the
-   condition-expressions of instruction patterns.  Note how
-   `TARGET_68020' appears frequently in the 68000 machine description
-   file, `m68k.md'.  Another place they are used is in the
-   definitions of the other macros in the `MACHINE.h' file.  */
 
 
 
@@ -110,27 +74,6 @@ extern int target_flags;
     N_("Output instruction sizes to the asm file") },			\
   { "deb", MASK_ALL_DEBUG, NULL },					\
   { "", 0, NULL } }
-/* This macro defines names of command options to set and clear bits
-   in `target_flags'.  Its definition is an initializer with a
-   subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the
-   option name, and a number, which contains the bits to set in
-   `target_flags'.  A negative number says to clear bits instead; the
-   negative of the number is which bits to clear.  The actual option
-   name is made by appending `-m' to the specified name.
-
-   One of the subgroupings should have a null string.  The number in
-   this grouping is the default value for `target_flags'.  Any target
-   options act starting with that value.
-
-   Here is an example which defines `-m68000' and `-m68020' with
-   opposite meanings, and picks the latter as the default:
-
-   #define TARGET_SWITCHES \
-   { { "68020", 1},      \
-   { "68000", -1},     \
-   { "", 1}}  */
 
 extern const char *avr_init_stack;
 extern const char *avr_mcu_name;
@@ -143,23 +86,6 @@ extern int avr_enhanced_p;
 #define TARGET_OPTIONS {						      \
  { "init-stack=", &avr_init_stack, N_("Specify the initial stack address") }, \
  { "mcu=", &avr_mcu_name, N_("Specify the MCU name") } }
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
-   command options that have values.  Its definition is an
-   initializer with a subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the
-   fixed part of the option name, and the address of a variable.  The
-   variable, type `char *', is set to the variable part of the given
-   option if the fixed part matches.  The actual option name is made
-   by appending `-m' to the specified name.
-
-   Here is an example which defines `-mshort-data-NUMBER'.  If the
-   given option is `-mshort-data-512', the variable `m88k_short_data'
-   will be set to the string `"512"'.
-
-   extern char *m88k_short_data;
-   #define TARGET_OPTIONS \
-   { { "short-data-", &m88k_short_data } }  */
 
 #define TARGET_VERSION fprintf (stderr, " (GNU assembler syntax)");
 /* This macro is a C statement to print on `stderr' a string

gcc/config/c4x/c4x.h

@@ -297,23 +297,6 @@ extern int target_flags;
 
 /* -mcpu=XX    with XX = target DSP version number.  */
 
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
-   command options that have values.  Its definition is an
-   initializer with a subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the
-   fixed part of the option name, and the address of a variable.
-   The variable, type `char *', is set to the variable part of the
-   given option if the fixed part matches.  The actual option name
-   is made by appending `-m' to the specified name.
-
-   Here is an example which defines `-mshort-data-NUMBER'.  If the
-   given option is `-mshort-data-512', the variable `m88k_short_data'
-   will be set to the string `"512"'.
-
-   extern char *m88k_short_data;
-   #define TARGET_OPTIONS { { "short-data-", &m88k_short_data } }  */
-
 extern const char *c4x_rpts_cycles_string, *c4x_cpu_version_string;
 
 #define TARGET_OPTIONS						\

gcc/config/dsp16xx/dsp16xx.h

@@ -251,23 +251,6 @@ extern int target_flags;
 #define TARGET_DEFAULT  MASK_REGPARM|MASK_YBASE_HIGH
 #endif
 
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
-   command options that have values.  Its definition is an
-   initializer with a subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the
-   fixed part of the option name, and the address of a variable. 
-   The variable, type `char *', is set to the variable part of the
-   given option if the fixed part matches.  The actual option name
-   is made by appending `-m' to the specified name.
-
-   Here is an example which defines `-mshort-data-NUMBER'.  If the
-   given option is `-mshort-data-512', the variable `m88k_short_data'
-   will be set to the string `"512"'.
-
-	extern char *m88k_short_data;
-	#define TARGET_OPTIONS { { "short-data-", &m88k_short_data } }  */
-
 #define TARGET_OPTIONS						\
 {								\
   { "text=",	&text_seg_name,				        \

gcc/config/ia64/ia64.h

@@ -205,23 +205,9 @@ extern const char *ia64_fixed_range_string;
   "%{mcpu=itanium:-D__itanium__} %{mbig-endian:-D__BIG_ENDIAN__}	\
    -D__LONG_MAX__=9223372036854775807L"
 
-/* If this macro is defined, the preprocessor will not define the builtin macro
-   `__SIZE_TYPE__'.  The macro `__SIZE_TYPE__' must then be defined by
-   `CPP_SPEC' instead.
-
-   This should be defined if `SIZE_TYPE' depends on target dependent flags
-   which are not accessible to the preprocessor.  Otherwise, it should not be
-   defined.  */
 /* This is always "long" so it doesn't "change" in ILP32 vs. LP64.  */
 /* #define NO_BUILTIN_SIZE_TYPE */
 
-/* If this macro is defined, the preprocessor will not define the builtin macro
-   `__PTRDIFF_TYPE__'.  The macro `__PTRDIFF_TYPE__' must then be defined by
-   `CPP_SPEC' instead.
-
-   This should be defined if `PTRDIFF_TYPE' depends on target dependent flags
-   which are not accessible to the preprocessor.  Otherwise, it should not be
-   defined.  */
 /* This is always "long" so it doesn't "change" in ILP32 vs. LP64.  */
 /* #define NO_BUILTIN_PTRDIFF_TYPE */
 
@@ -245,9 +231,6 @@ extern const char *ia64_fixed_range_string;
 
 #define BITS_BIG_ENDIAN 0
 
-/* Define this macro to have the value 1 if the most significant byte in a word
-   has the lowest number.  This macro need not be a constant.  */
-
 #define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN != 0)
 
 /* Define this macro to have the value 1 if, in a multiword object, the most
@@ -255,29 +238,18 @@ extern const char *ia64_fixed_range_string;
 
 #define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN != 0)
 
-/* Define this macro if WORDS_BIG_ENDIAN is not constant.  This must be a
-   constant value with the same meaning as WORDS_BIG_ENDIAN, which will be used
-   only when compiling libgcc2.c.  Typically the value will be set based on
-   preprocessor defines.  */
 #if defined(__BIG_ENDIAN__)
 #define LIBGCC2_WORDS_BIG_ENDIAN 1
 #else
 #define LIBGCC2_WORDS_BIG_ENDIAN 0
 #endif
 
-/* Define this macro to be the number of bits in an addressable storage unit
-   (byte); normally 8.  */
 #define BITS_PER_UNIT 8
 
-/* Number of bits in a word; normally 32.  */
 #define BITS_PER_WORD 64
 
-/* Number of storage units in a word; normally 4.  */
 #define UNITS_PER_WORD 8
 
-/* Width of a pointer, in bits.  You must specify a value no wider than the
-   width of `Pmode'.  If it is not equal to the width of `Pmode', you must
-   define `POINTERS_EXTEND_UNSIGNED'.  */
 #define POINTER_SIZE (TARGET_ILP32 ? 32 : 64)
 
 /* A C expression whose value is zero if pointers that need to be extended
@@ -301,22 +273,12 @@ do									\
   }									\
 while (0)
 
-/* Define this macro if the promotion described by `PROMOTE_MODE' should also
-   be done for outgoing function arguments.  */
 /* ??? ABI doesn't allow us to define this.  */
 /* #define PROMOTE_FUNCTION_ARGS */
 
-/* Define this macro if the promotion described by `PROMOTE_MODE' should also
-   be done for the return value of functions.
-
-   If this macro is defined, `FUNCTION_VALUE' must perform the same promotions
-   done by `PROMOTE_MODE'.  */
 /* ??? ABI doesn't allow us to define this.  */
 /* #define PROMOTE_FUNCTION_RETURN */
 
-/* Normal alignment required for function parameters on the stack, in bits.
-   All stack parameters receive at least this much alignment regardless of data
-   type.  On most machines, this is the same as the size of an integer.  */
 #define PARM_BOUNDARY 64
 
 /* Define this macro if you wish to preserve a certain alignment for the stack
@@ -330,11 +292,8 @@ while (0)
 #define IA64_STACK_ALIGN(LOC) (((LOC) + 15) & ~15)
 #endif
 
-/* Alignment required for a function entry point, in bits.  */
 #define FUNCTION_BOUNDARY 128
 
-/* Biggest alignment that any data type can require on this machine,
-   in bits.  */
 /* Optional x86 80-bit float, quad-precision 128-bit float, and quad-word
    128 bit integers all require 128 bit alignment.  */
 #define BIGGEST_ALIGNMENT 128
@@ -358,9 +317,6 @@ while (0)
   (TREE_CODE (EXP) == STRING_CST	\
    && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
 
-/* Define this macro to be the value 1 if instructions will fail to work if
-   given data not on the nominal alignment.  If instructions will merely go
-   slower in that case, define this macro as 0.  */
 #define STRICT_ALIGNMENT 1
 
 /* Define this if you wish to imitate the way many other C compilers handle
@@ -391,45 +347,22 @@ while (0)
 
 /* Layout of Source Language Data Types */
 
-/* A C expression for the size in bits of the type `int' on the target machine.
-   If you don't define this, the default is one word.  */
 #define INT_TYPE_SIZE 32
 
-/* A C expression for the size in bits of the type `short' on the target
-   machine.  If you don't define this, the default is half a word.  (If this
-   would be less than one storage unit, it is rounded up to one unit.)  */
 #define SHORT_TYPE_SIZE 16
 
-/* A C expression for the size in bits of the type `long' on the target
-   machine.  If you don't define this, the default is one word.  */
 #define LONG_TYPE_SIZE (TARGET_ILP32 ? 32 : 64)
 
-/* Maximum number for the size in bits of the type `long' on the target
-   machine.  If this is undefined, the default is `LONG_TYPE_SIZE'.  Otherwise,
-   it is the constant value that is the largest value that `LONG_TYPE_SIZE' can
-   have at run-time.  This is used in `cpp'.  */
 #define MAX_LONG_TYPE_SIZE 64
 
-/* A C expression for the size in bits of the type `long long' on the target
-   machine.  If you don't define this, the default is two words.  If you want
-   to support GNU Ada on your machine, the value of macro must be at least 64.  */
 #define LONG_LONG_TYPE_SIZE 64
 
-/* A C expression for the size in bits of the type `char' on the target
-   machine.  If you don't define this, the default is one quarter of a word.
-   (If this would be less than one storage unit, it is rounded up to one unit.)  */
 #define CHAR_TYPE_SIZE 8
 
-/* A C expression for the size in bits of the type `float' on the target
-   machine.  If you don't define this, the default is one word.  */
 #define FLOAT_TYPE_SIZE 32
 
-/* A C expression for the size in bits of the type `double' on the target
-   machine.  If you don't define this, the default is two words.  */
 #define DOUBLE_TYPE_SIZE 64
 
-/* A C expression for the size in bits of the type `long double' on the target
-   machine.  If you don't define this, the default is two words.  */
 #define LONG_DOUBLE_TYPE_SIZE 128
 
 /* Tell real.c that this is the 80-bit Intel extended float format
@@ -437,9 +370,6 @@ while (0)
 
 #define INTEL_EXTENDED_IEEE_FORMAT 1
 
-/* An expression whose value is 1 or 0, according to whether the type `char'
-   should be signed or unsigned by default.  The user can always override this
-   default with the options `-fsigned-char' and `-funsigned-char'.  */
 #define DEFAULT_SIGNED_CHAR 1
 
 /* A C expression for a string describing the name of the data type to use for
@@ -464,12 +394,6 @@ while (0)
    This is used in `cpp', which cannot make use of `WCHAR_TYPE'.  */
 /* #define WCHAR_TYPE_SIZE */
 
-/* Maximum number for the size in bits of the data type for wide characters.
-   If this is undefined, the default is `WCHAR_TYPE_SIZE'.  Otherwise, it is
-   the constant value that is the largest value that `WCHAR_TYPE_SIZE' can have
-   at run-time.  This is used in `cpp'.  */
-/* #define MAX_WCHAR_TYPE_SIZE */
-
 
 /* Register Basics */
 

gcc/config/m68hc11/m68hc11.h

@@ -281,8 +281,6 @@ extern const struct processor_costs *m68hc11_cost;
 /* Allocation boundary (bits) for the code of a function.  */
 #define FUNCTION_BOUNDARY	8
 
-/* Biggest alignment that any data type can require on this machine,
-   in bits.  */
 #define BIGGEST_ALIGNMENT	8
 
 /* Alignment of field after `int : 0' in a structure.  */

gcc/config/mips/mips.h

@@ -583,23 +583,6 @@ extern void		sbss_section PARAMS ((void));
 #endif
 #endif
 
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
-   command options that have values.  Its definition is an
-   initializer with a subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the
-   fixed part of the option name, and the address of a variable.
-   The variable, type `char *', is set to the variable part of the
-   given option if the fixed part matches.  The actual option name
-   is made by appending `-m' to the specified name.
-
-   Here is an example which defines `-mshort-data-NUMBER'.  If the
-   given option is `-mshort-data-512', the variable `m88k_short_data'
-   will be set to the string `"512"'.
-
-	extern char *m88k_short_data;
-	#define TARGET_OPTIONS { { "short-data-", &m88k_short_data } }  */
-
 #define TARGET_OPTIONS							\
 {									\
   SUBTARGET_TARGET_OPTIONS						\
@@ -2761,9 +2744,6 @@ extern struct mips_frame_info current_frame_info;
 #define RETURN_IN_MEMORY(TYPE)	\
   (TYPE_MODE (TYPE) == BLKmode)
 
-/* A code distinguishing the floating point format of the target
-   machine.  There are three defined values: IEEE_FLOAT_FORMAT,
-   VAX_FLOAT_FORMAT, and UNKNOWN_FLOAT_FORMAT.  */
 
 #define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT
 

gcc/config/rs6000/rs6000.h

@@ -417,23 +417,6 @@ extern enum processor_type rs6000_cpu;
    and the old mnemonics are dialect zero.  */
 #define ASSEMBLER_DIALECT (TARGET_NEW_MNEMONICS ? 1 : 0)
 
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
-   command options that have values.  Its definition is an
-   initializer with a subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the
-   fixed part of the option name, and the address of a variable.
-   The variable, type `char *', is set to the variable part of the
-   given option if the fixed part matches.  The actual option name
-   is made by appending `-m' to the specified name.
-
-   Here is an example which defines `-mshort-data-NUMBER'.  If the
-   given option is `-mshort-data-512', the variable `m88k_short_data'
-   will be set to the string `"512"'.
-
-	extern char *m88k_short_data;
-	#define TARGET_OPTIONS { { "short-data-", &m88k_short_data } }  */
-
 /* This is meant to be overridden in target specific files.  */
 #define	SUBTARGET_OPTIONS
 

gcc/config/sparc/sparc.h

@@ -660,23 +660,6 @@ extern enum processor_type sparc_cpu;
    Every file includes us, but not every file includes insn-attr.h.  */
 #define sparc_cpu_attr ((enum attr_cpu) sparc_cpu)
 
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
-   command options that have values.  Its definition is an
-   initializer with a subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the
-   fixed part of the option name, and the address of a variable. 
-   The variable, type `char *', is set to the variable part of the
-   given option if the fixed part matches.  The actual option name
-   is made by appending `-m' to the specified name.
-
-   Here is an example which defines `-mshort-data-NUMBER'.  If the
-   given option is `-mshort-data-512', the variable `m88k_short_data'
-   will be set to the string `"512"'.
-
-	extern char *m88k_short_data;
-	#define TARGET_OPTIONS { { "short-data-", &m88k_short_data } }  */
-
 #define TARGET_OPTIONS \
 {								\
   { "cpu=",  &sparc_select[1].string,				\

gcc/config/v850/v850.h

@@ -158,24 +158,6 @@ enum small_memory_type {
 
 extern struct small_memory_info small_memory[(int)SMALL_MEMORY_max];
 
-/* This macro is similar to `TARGET_SWITCHES' but defines names of
-   command options that have values.  Its definition is an
-   initializer with a subgrouping for each command option.
-
-   Each subgrouping contains a string constant, that defines the
-   fixed part of the option name, and the address of a variable.  The
-   variable, type `char *', is set to the variable part of the given
-   option if the fixed part matches.  The actual option name is made
-   by appending `-m' to the specified name.
-
-   Here is an example which defines `-mshort-data-NUMBER'.  If the
-   given option is `-mshort-data-512', the variable `m88k_short_data'
-   will be set to the string `"512"'.
-
-          extern char *m88k_short_data;
-          #define TARGET_OPTIONS \
-           { { "short-data-", &m88k_short_data } } */
-
 #define TARGET_OPTIONS							\
 {									\
   { "tda=",	&small_memory[ (int)SMALL_MEMORY_TDA ].value,		\