libgo, compiler: Upgrade libgo to Go 1.4, except for runtime.

This upgrades all of libgo other than the runtime package to
the Go 1.4 release.  In Go 1.4 much of the runtime was
rewritten into Go.  Merging that code will take more time and
will not change the API, so I'm putting it off for now.

There are a few runtime changes anyhow, to accomodate other
packages that rely on minor modifications to the runtime
support.

The compiler changes slightly to add a one-bit flag to each
type descriptor kind that is stored directly in an interface,
which for gccgo is currently only pointer types.  Another
one-bit flag (gcprog) is reserved because it is used by the gc
compiler, but gccgo does not currently use it.

There is another error check in the compiler since I ran
across it during testing.

gotools/:
	* Makefile.am (go_cmd_go_files): Sort entries.  Add generate.go.
	* Makefile.in: Rebuild.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@219627 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 24 insertions, 24 deletions

diff --git a/libgo/go/regexp/syntax/doc.go b/libgo/go/regexp/syntax/doc.go
index 8e72c90d3eb..e5e71f14f59 100644
--- a/libgo/go/regexp/syntax/doc.go
+++ b/libgo/go/regexp/syntax/doc.go
@@ -21,8 +21,8 @@ Single characters:
   [^xyz]         negated character class
   \d             Perl character class
   \D             negated Perl character class
-  [:alpha:]      ASCII character class
-  [:^alpha:]     negated ASCII character class
+  [[:alpha:]]    ASCII character class
+  [[:^alpha:]]   negated ASCII character class
   \pN            Unicode character class (one-letter name)
   \p{Greek}      Unicode character class
   \PN            negated Unicode character class (one-letter name)
@@ -46,14 +46,14 @@ Repetitions:
   x{n,}?         n or more x, prefer fewer
   x{n}?          exactly n x
 
-Implementation restriction: The counting forms x{n} etc. (but not the other
-forms x* etc.) have an upper limit of n=1000. Negative or higher explicit
-counts yield the parse error ErrInvalidRepeatSize.
+Implementation restriction: The counting forms x{n,m}, x{n,}, and x{n}
+reject forms that create a minimum or maximum repetition count above 1000.
+Unlimited repetitions are not subject to this restriction.
 
 Grouping:
   (re)           numbered capturing group (submatch)
   (?P<name>re)   named & numbered capturing group (submatch)
-  (?:re)         non-capturing group (submatch)
+  (?:re)         non-capturing group
   (?flags)       set flags within current group; non-capturing
   (?flags:re)    set flags during re; non-capturing
 
@@ -69,7 +69,7 @@ Empty strings:
   $              at end of text (like \z not \Z) or line (flag m=true)
   \A             at beginning of text
   \b             at ASCII word boundary (\w on one side and \W, \A, or \z on the other)
-  \B             not an ASCII word boundary
+  \B             not at ASCII word boundary
   \z             at end of text
 
 Escape sequences:
@@ -103,29 +103,29 @@ Named character classes as character class elements:
   [\p{Name}]     named Unicode property inside character class (== \p{Name})
   [^\p{Name}]    named Unicode property inside negated character class (== \P{Name})
 
-Perl character classes:
+Perl character classes (all ASCII-only):
   \d             digits (== [0-9])
   \D             not digits (== [^0-9])
   \s             whitespace (== [\t\n\f\r ])
   \S             not whitespace (== [^\t\n\f\r ])
-  \w             ASCII word characters (== [0-9A-Za-z_])
-  \W             not ASCII word characters (== [^0-9A-Za-z_])
+  \w             word characters (== [0-9A-Za-z_])
+  \W             not word characters (== [^0-9A-Za-z_])
 
 ASCII character classes:
-  [:alnum:]      alphanumeric (== [0-9A-Za-z])
-  [:alpha:]      alphabetic (== [A-Za-z])
-  [:ascii:]      ASCII (== [\x00-\x7F])
-  [:blank:]      blank (== [\t ])
-  [:cntrl:]      control (== [\x00-\x1F\x7F])
-  [:digit:]      digits (== [0-9])
-  [:graph:]      graphical (== [!-~] == [A-Za-z0-9!"#$%&'()*+,\-./:;<=>?@[\\\]^_`{|}~])
-  [:lower:]      lower case (== [a-z])
-  [:print:]      printable (== [ -~] == [ [:graph:]])
-  [:punct:]      punctuation (== [!-/:-@[-`{-~])
-  [:space:]      whitespace (== [\t\n\v\f\r ])
-  [:upper:]      upper case (== [A-Z])
-  [:word:]       word characters (== [0-9A-Za-z_])
-  [:xdigit:]     hex digit (== [0-9A-Fa-f])
+  [[:alnum:]]    alphanumeric (== [0-9A-Za-z])
+  [[:alpha:]]    alphabetic (== [A-Za-z])
+  [[:ascii:]]    ASCII (== [\x00-\x7F])
+  [[:blank:]]    blank (== [\t ])
+  [[:cntrl:]]    control (== [\x00-\x1F\x7F])
+  [[:digit:]]    digits (== [0-9])
+  [[:graph:]]    graphical (== [!-~] == [A-Za-z0-9!"#$%&'()*+,\-./:;<=>?@[\\\]^_`{|}~])
+  [[:lower:]]    lower case (== [a-z])
+  [[:print:]]    printable (== [ -~] == [ [:graph:]])
+  [[:punct:]]    punctuation (== [!-/:-@[-`{-~])
+  [[:space:]]    whitespace (== [\t\n\v\f\r ])
+  [[:upper:]]    upper case (== [A-Z])
+  [[:word:]]     word characters (== [0-9A-Za-z_])
+  [[:xdigit:]]   hex digit (== [0-9A-Fa-f])
 
 */
 package syntax