docs: don't split @smallexample in multiple @groups

Noticed multiple groups split in HTML documentation where example
was written in two columns:

                                                   ""
                                                   "
  (define_expand "addsi3"                          {
    [(match_operand:SI 0 "register_operand" "")      handle_add (...
     (match_operand:SI 1 "register_operand" "")      DONE;
     (match_operand:SI 2 "register_operand" "")]   }")

The change uses single @group/@endgroup to prevent such break.

gcc/ChangeLog:

	* doc/md.texi: Don't split @smallexample in multiple @groups.

diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi
index 7a4d24e..0fe70b7 100644 (file)
--- a/gcc/doc/md.texi
+++ b/gcc/doc/md.texi
@@ -8455,8 +8455,6 @@ list of operands, such as this example:
   [(match_operand:SI 0 "register_operand" "")
    (match_operand:SI 1 "register_operand" "")
    (match_operand:SI 2 "register_operand" "")]
-@end group
-@group
   ""
   "
 @{
@@ -8473,17 +8471,10 @@ Here is an example, the definition of left-shift for the SPUR chip:
 (define_expand "ashlsi3"
   [(set (match_operand:SI 0 "register_operand" "")
         (ashift:SI
-@end group
-@group
           (match_operand:SI 1 "register_operand" "")
           (match_operand:SI 2 "nonmemory_operand" "")))]
   ""
   "
-@end group
-@end smallexample
-
-@smallexample
-@group
 @{
   if (GET_CODE (operands[2]) != CONST_INT
       || (unsigned) INTVAL (operands[2]) > 3)