update BUGS, INSTALL, NEWS derived files

From-SVN: r26556

2 files changed, 47 insertions, 55 deletions

diff --git a/gcc/f/BUGS b/gcc/f/BUGS
index 40edbb1..b40c7ae 100644
--- a/gcc/f/BUGS
+++ b/gcc/f/BUGS
@@ -40,7 +40,7 @@ via `http://egcs.cygnus.com/onlinedocs/g77_bugs.html'.  Follow the
 port, build, and install `g77', see "Problems Installing" in
 `egcs/gcc/f/INSTALL'.
 
-   The following information was last updated on 1999-04-03:
+   The following information was last updated on 1999-04-20:
 
    * Automatic arrays possibly aren't working on HP-UX systems, at
      least in HP-UX version 10.20.  Writing into them apparently causes
@@ -152,33 +152,6 @@ port, build, and install `g77', see "Problems Installing" in
      targets, and front ends like `g77' should take advantage of this
      when it becomes available.
 
-   * The x86 target's `-malign-double' option no longer reliably aligns
-     double-precision variables and arrays when they are placed in the
-     stack frame.
-
-     This can significantly reduce the performance of some applications,
-     even on a run-to-run basis (that is, performance measurements can
-     vary fairly widely depending on whether frequently used variables
-     are properly aligned, and that can change from one program run to
-     the next, even from one procedure call to the next).
-
-     Versions 0.5.22 and earlier of `g77' included a patch to `gcc'
-     that enabled this, but that patch has been deemed an improper
-     (probably buggy) one for version 2.8 of `gcc' and for `egcs'.
-
-     Note that version 1.1 of `egcs' aligns double-precision variables
-     and arrays when they are in static storage even if
-     `-malign-double' is not specified.
-
-     There is ongoing investigation into how to make `-malign-double'
-     work properly, also into how to make it unnecessary to get all
-     double-precision variables and arrays aligned when such alignment
-     would not violate the relevant specifications for processor and
-     inter-procedural interfaces.
-
-     For a suite of programs to test double-precision alignment, see
-     `ftp://alpha.gnu.org/gnu/g77/align/'.
-
    * The `libf2c' routines that perform some run-time arithmetic on
      `COMPLEX' operands were modified circa version 0.5.20 of `g77' to
      work properly even in the presence of aliased operands.
diff --git a/gcc/f/NEWS b/gcc/f/NEWS
index 807d4de..5cd2615 100644
--- a/gcc/f/NEWS
+++ b/gcc/f/NEWS
@@ -66,7 +66,7 @@ about previous `g77' versions up-to-date.
 the mainline, development version of `g77' within `egcs') is available
 at `http://egcs.cygnus.com/onlinedocs/g77_news.html'.
 
-   The following information was last updated on 1999-04-03:
+   The following information was last updated on 1999-04-20:
 
 In `egcs' 1.2 (versus 1.1.2):
 =============================
@@ -82,7 +82,11 @@ In `egcs' 1.2 (versus 1.1.2):
      where J is other than default `INTEGER' (such as `INTEGER*2').
      Instead, it issues a diagnostic.
 
-  3. The `-ax' option is now obeyed when compiling Fortran programs.
+  3. Fix `g77' so it properly handles `DATA A/RPT*VAL/', where RPT is
+     not default `INTEGER', such as `INTEGER*2', instead of producing a
+     spurious diagnostic.
+
+  4. The `-ax' option is now obeyed when compiling Fortran programs.
      (It is passed to the `f771' driver.)
 
    * Source file names with the suffixes `.FOR' and `.FPP' now are
@@ -95,7 +99,7 @@ In `egcs' 1.2 (versus 1.1.2):
      references to the implementations of these intrinsics using the
      `EXTERNAL' mechanism (which would avoid the new warnings).
 
-  4. `g77' now warns about a reference to a function when the
+  5. `g77' now warns about a reference to a function when the
      corresponding *subsequent* function program unit disagrees with
      the reference concerning the type of the function.
 
@@ -106,8 +110,23 @@ In `egcs' 1.2 (versus 1.1.2):
    * The `-malign-double' option now reliably aligns *all*
      double-precision variables and arrays on Intel x86 targets.
 
-  5. Improve documentation and indexing, including information on Year
-     2000 (Y2K) compliance.
+   * Even without the `-malign-double' option, `g77' reliably aligns
+     local double-precision variables that are not in `EQUIVALENCE'
+     areas and not `SAVE''d.
+
+   * A substantial portion of the `g77' front end's code-generation
+     component was rewritten.  It now generates code using facilities
+     more robustly supported by the `gcc' back end.  One effect of this
+     rewrite is that some codes no longer produce a spurious "label LAB
+     used before containing binding contour" message.
+
+   * Support for the `-fugly' option has been removed.
+
+  6. Improve documentation and indexing, including information on Year
+     2000 (Y2K) compliance, and providing more information on internals
+     of the front end.
+
+  7. Upgrade to `libf2c' as of 1999-03-17.
 
 In 0.5.24 and `egcs' 1.1.2 (versus 0.5.23 and 1.1.1):
 =====================================================
@@ -149,14 +168,14 @@ In 0.5.24 and `egcs' 1.1.1 (versus 0.5.23 and 1.1):
 In `egcs' 1.1 (versus 0.5.24):
 ==============================
 
-  6. Fix `g77' crash compiling code containing the construct
+  8. Fix `g77' crash compiling code containing the construct
      `CMPLX(0.)' or similar.
 
-  7. Fix `g77' crash (or apparently infinite run-time) when compiling
+  9. Fix `g77' crash (or apparently infinite run-time) when compiling
      certain complicated expressions involving `COMPLEX' arithmetic
      (especially multiplication).
 
-  8. Fix a code-generation bug that afflicted Intel x86 targets when
+ 10. Fix a code-generation bug that afflicted Intel x86 targets when
      `-O2' was specified compiling, for example, an old version of the
      `DNRM2' routine.
 
@@ -172,25 +191,25 @@ In `egcs' 1.1 (versus 0.5.24):
 In `egcs' 1.1 (versus `egcs' 1.0.3):
 ====================================
 
-  9. Fix bugs in the `libU77' intrinsic `HostNm' that wrote one byte
+ 11. Fix bugs in the `libU77' intrinsic `HostNm' that wrote one byte
      beyond the end of its `CHARACTER' argument, and in the `libU77'
      intrinsics `GMTime' and `LTime' that overwrote their arguments.
 
- 10. Assumed arrays with negative bounds (such as `REAL A(-1:*)') no
+ 12. Assumed arrays with negative bounds (such as `REAL A(-1:*)') no
      longer elicit spurious diagnostics from `g77', even on systems
      with pointers having different sizes than integers.
 
      This bug is not known to have existed in any recent version of
      `gcc'.  It was introduced in an early release of `egcs'.
 
- 11. Valid combinations of `EXTERNAL', passing that external as a dummy
+ 13. Valid combinations of `EXTERNAL', passing that external as a dummy
      argument without explicitly giving it a type, and, in a subsequent
      program unit, referencing that external as an external function
      with a different type no longer crash `g77'.
 
- 12. `CASE DEFAULT' no longer crashes `g77'.
+ 14. `CASE DEFAULT' no longer crashes `g77'.
 
- 13. The `-Wunused' option no longer issues a spurious warning about
+ 15. The `-Wunused' option no longer issues a spurious warning about
      the "master" procedure generated by `g77' for procedures
      containing `ENTRY' statements.
 
@@ -215,25 +234,25 @@ In `egcs' 1.1 (versus `egcs' 1.0.3):
      `libf2c' environment, even when `libf2c' (now `libg2c') is a
      shared library.
 
- 14. `g77' no longer installs the `f77' command and `f77.1' man page in
+ 16. `g77' no longer installs the `f77' command and `f77.1' man page in
      the `/usr' or `/usr/local' heirarchy, even if the `f77-install-ok'
      file exists in the source or build directory.  See the
      installation documentation for more information.
 
- 15. `g77' no longer installs the `libf2c.a' library and `f2c.h'
+ 17. `g77' no longer installs the `libf2c.a' library and `f2c.h'
      include file in the `/usr' or `/usr/local' heirarchy, even if the
      `f2c-install-ok' or `f2c-exists-ok' files exist in the source or
      build directory.  See the installation documentation for more
      information.
 
- 16. The `libf2c.a' library produced by `g77' has been renamed to
+ 18. The `libf2c.a' library produced by `g77' has been renamed to
      `libg2c.a'.  It is installed only in the `gcc' "private" directory
      heirarchy, `gcc-lib'.  This allows system administrators and users
      to choose which version of the `libf2c' library from `netlib' they
      wish to use on a case-by-case basis.  See the installation
      documentation for more information.
 
- 17. The `f2c.h' include (header) file produced by `g77' has been
+ 19. The `f2c.h' include (header) file produced by `g77' has been
      renamed to `g2c.h'.  It is installed only in the `gcc' "private"
      directory heirarchy, `gcc-lib'.  This allows system administrators
      and users to choose which version of the include file from
@@ -245,11 +264,11 @@ In `egcs' 1.1 (versus `egcs' 1.0.3):
      than the one built and installed as part of the same `g77' version
      is picked up.
 
- 18. During the configuration and build process, `g77' creates
+ 20. During the configuration and build process, `g77' creates
      subdirectories it needs only as it needs them.  Other cleaning up
      of the configuration and build process has been performed as well.
 
- 19. `install-info' now used to update the directory of Info
+ 21. `install-info' now used to update the directory of Info
      documentation to contain an entry for `g77' (during installation).
 
    * Some diagnostics have been changed from warnings to errors, to
@@ -258,28 +277,28 @@ In `egcs' 1.1 (versus `egcs' 1.0.3):
      in the `OPEN', `INQUIRE', `READ', and `WRITE' statements, and
      about truncations of various sorts of constants.
 
- 20. Improve compilation of `FORMAT' expressions so that a null byte is
+ 22. Improve compilation of `FORMAT' expressions so that a null byte is
      appended to the last operand if it is a constant.  This provides a
      cleaner run-time diagnostic as provided by `libf2c' for statements
      like `PRINT '(I1', 42'.
 
- 21. Improve documentation and indexing.
+ 23. Improve documentation and indexing.
 
- 22. The upgrade to `libf2c' as of 1998-06-18 should fix a variety of
+ 24. The upgrade to `libf2c' as of 1998-06-18 should fix a variety of
      problems, including those involving some uses of the `T' format
      specifier, and perhaps some build (porting) problems as well.
 
 In 0.5.24 and `egcs' 1.1 (versus 0.5.23):
 =========================================
 
- 23. `g77' no longer produces incorrect code and initial values for
+ 25. `g77' no longer produces incorrect code and initial values for
      `EQUIVALENCE' and `COMMON' aggregates that, due to "unnatural"
      ordering of members vis-a-vis their types, require initial padding.
 
- 24. `g77' no longer crashes when compiling code containing
+ 26. `g77' no longer crashes when compiling code containing
      specification statements such as `INTEGER(KIND=7) PTR'.
 
- 25. `g77' no longer crashes when compiling code such as `J = SIGNAL(1,
+ 27. `g77' no longer crashes when compiling code such as `J = SIGNAL(1,
      2)'.
 
    * `g77' now treats `%LOC(EXPR)' and `LOC(EXPR)' as "ordinary"
@@ -310,9 +329,9 @@ In 0.5.24 and `egcs' 1.1 (versus 0.5.23):
    * The F90 `System_Clock' intrinsic allows the optional arguments
      (except for the `Count' argument) to be omitted.
 
- 26. Upgrade to `libf2c' as of 1998-06-18.
+ 28. Upgrade to `libf2c' as of 1998-06-18.
 
- 27. Improve documentation and indexing.
+ 29. Improve documentation and indexing.
 
 In previous versions:
 =====================