2003-01-29 Andrew Cagney <ac131313@redhat.com>

* gdb.texinfo (Maintenance Commands): Document `maint print
	reggroups' and `maint print register-groups'.
	* gdbint.texinfo (Target Architecture Definition): Document
	register_reggroup_p.

gdb/doc/ChangeLog

@@ -1,3 +1,10 @@
+2003-01-29  Andrew Cagney  <ac131313@redhat.com>
+
+	* gdb.texinfo (Maintenance Commands): Document `maint print
+	reggroups' and `maint print register-groups'.
+	* gdbint.texinfo (Target Architecture Definition): Document
+	register_reggroup_p.
+
 2003-01-23  Jim Blandy  <jimb@redhat.com>
 
 	* gdb.texinfo (Separate Debug Files): New section.

gdb/doc/gdb.texinfo

@@ -14631,18 +14631,40 @@ warning message.
 @kindex maint print registers
 @kindex maint print raw-registers
 @kindex maint print cooked-registers
+@kindex maint print register-groups
 @item maint print registers
 @itemx maint print raw-registers
 @itemx maint print cooked-registers
+@itemx maint print register-groups
 Print @value{GDBN}'s internal register data structures.
 
-The command @samp{maint print raw-registers} includes the contents of
-the raw register cache; and the command @samp{maint print
-cooked-registers} includes the (cooked) value of all registers.
-@xref{Registers,, Registers, gdbint, @value{GDBN} Internals}.
+The command @code{maint print raw-registers} includes the contents of
+the raw register cache; the command @code{maint print cooked-registers}
+includes the (cooked) value of all registers; and the command
+@code{maint print register-groups} includes the groups that each
+register is a member of.  @xref{Registers,, Registers, gdbint,
+@value{GDBN} Internals}.
 
 Takes an optional file parameter.
 
+@kindex maint print reggroups
+@item maint print reggroups
+Print @value{GDBN}'s internal register group data structures.
+
+Takes an optional file parameter.
+
+@smallexample
+(gdb) @kbd{maint print reggroups}
+ Group      Type      
+ general    user      
+ float      user      
+ all        user      
+ vector     user      
+ system     user      
+ save       internal  
+ restore    internal  
+@end smallexample
+
 @kindex maint set profile
 @kindex maint show profile
 @cindex profiling GDB

gdb/doc/gdbint.texinfo

@@ -3510,6 +3510,28 @@ Return the raw size of @var{reg}; defaults to the size of the register's
 virtual type.
 @xref{Target Architecture Definition, , Raw and Virtual Register Representations}.
 
+@item register_reggroup_p (@var{gdbarch}, @var{regnum}, @var{reggroup})
+@findex register_reggroup_p
+@cindex register groups
+Return non-zero if register @var{regnum} is a member of the register
+group @var{reggroup}.
+
+By default, registers are grouped as follows:
+
+@table @code
+@item float_reggroup
+Any register with a valid name and a floating-point type.
+@item vector_reggroup
+Any register with a valid name and a vector type.
+@item general_reggroup
+Any register with a valid name and a type other than vector or
+floating-point.  @samp{float_reggroup}.
+@item save_reggroup
+@itemx restore_reggroup
+@itemx all_reggroup
+Any register with a valid name.
+@end table
+
 @item REGISTER_VIRTUAL_SIZE (@var{reg})
 @findex REGISTER_VIRTUAL_SIZE
 Return the virtual size of @var{reg}; defaults to the size of the