-*Note:* This file is automatically generated from the files
-`bugs0.texi' and `bugs.texi'. `BUGS' is *not* a source file, although
+_Note:_ This file is automatically generated from the files
+`bugs0.texi' and `bugs.texi'. `BUGS' is _not_ a source file, although
it is normally included within source distributions.
- This file lists known bugs in the GCC-2.95 version of the GNU
-Fortran compiler. Copyright (C) 1995-1999 Free Software Foundation,
-Inc. You may copy, distribute, and modify it freely as long as you
-preserve this copyright notice and permission notice.
+ This file lists known bugs in the GCC-3.1 version of the GNU Fortran
+compiler. Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software
+Foundation, Inc. You may copy, distribute, and modify it freely as
+long as you preserve this copyright notice and permission notice.
Known Bugs In GNU Fortran
*************************
- This section identifies bugs that `g77' *users* might run into in
-the GCC-2.95 version of `g77'. This includes bugs that are actually in
+ This section identifies bugs that `g77' _users_ might run into in
+the GCC-3.1 version of `g77'. This includes bugs that are actually in
the `gcc' back end (GBE) or in `libf2c', because those sets of code are
at least somewhat under the control of (and necessarily intertwined
with) `g77', so it isn't worth separating them out.
- For information on bugs in *other* versions of `g77', see
-`egcs/gcc/f/NEWS'. There, lists of bugs fixed in various versions of
+ For information on bugs in _other_ versions of `g77', see
+`gcc/gcc/f/NEWS'. There, lists of bugs fixed in various versions of
`g77' can help determine what bugs existed in prior versions.
- *Warning:* The information below is still under development, and
+ _Warning:_ The information below is still under development, and
might not accurately reflect the `g77' code base of which it is a part.
Efforts are made to keep it somewhat up-to-date, but they are
particularly concentrated on any version of this information that is
-distributed as part of a *released* `g77'.
+distributed as part of a _released_ `g77'.
In particular, while this information is intended to apply to the
-GCC-2.95 version of `g77', only an official *release* of that version
-is expected to contain documentation that is most consistent with the
+GCC-3.1 version of `g77', only an official _release_ of that version is
+expected to contain documentation that is most consistent with the
`g77' product in that version.
An online, "live" version of this document (derived directly from
-the mainline, development version of `g77' within `egcs') is available
-via `http://www.gnu.org/software/gcc/onlinedocs/g77_bugs.html'. Follow the
-"Known Bugs" link.
+the mainline, development version of `g77' within `gcc') is available
+via `http://www.gnu.org/software/gcc/onlinedocs/g77_bugs.html'. Follow
+the "Known Bugs" link.
For information on bugs that might afflict people who configure,
port, build, and install `g77', see "Problems Installing" in
-`egcs/gcc/f/INSTALL'.
+`gcc/gcc/f/INSTALL'.
- The following information was last updated on 1999-06-28:
+ The following information was last updated on 2000-11-05:
* `g77' fails to warn about use of a "live" iterative-DO variable as
an implied-DO variable in a `WRITE' or `PRINT' statement (although
assembler file. This is to be mitigated somewhat in version 0.6.
Version 0.5.18 improves cases like this--specifically, cases of
- *sparse* initialization that leave large, contiguous areas
+ _sparse_ initialization that leave large, contiguous areas
uninitialized--significantly. However, even with the
improvements, these cases still require too much memory and CPU
time.
Note that `g77' does display a warning message to notify the user
before the compiler appears to hang.
- * `g77' doesn't emit variable and array members of common blocks for
- use with a debugger (the `-g' command-line option). The code is
- present to do this, but doesn't work with at least one debug
- format--perhaps it works with others. And it turns out there's a
- similar bug for local equivalence areas, so that has been disabled
- as well.
+ * Previous versions of `g77' didn't emit information on variable and
+ array members of common blocks and equivalences for use with a
+ debugger (the `-g' command-line option). As of the version of
+ `g77' shipped with version 3.0 of `GCC', this is corrected.
As of Version 0.5.19, a temporary kludge solution is provided
whereby some rudimentary information on a member is written as a
While the `g77' and `netlib' versions of `libf2c' differ on how
this is accomplished, the main differences are that we believe the
- `g77' version works properly even in the presence of *partially*
+ `g77' version works properly even in the presence of _partially_
aliased operands.
However, these modifications have reduced performance on targets
such as x86, due to the extra copies of operands involved.
-
+
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