diff options
Diffstat (limited to 'gnu/egcs/gcc/f/NEWS')
| -rw-r--r-- | gnu/egcs/gcc/f/NEWS | 81 |
1 files changed, 45 insertions, 36 deletions
diff --git a/gnu/egcs/gcc/f/NEWS b/gnu/egcs/gcc/f/NEWS index d9a91b11df2..3849c2d0217 100644 --- a/gnu/egcs/gcc/f/NEWS +++ b/gnu/egcs/gcc/f/NEWS @@ -2,7 +2,7 @@ `news0.texi' and `news.texi'. `NEWS' is *not* a source file, although it is normally included within source distributions. - This file lists news about the FSF-0.5.25 version (and some other + This file lists news about the GCC-2.95 version (and some other versions) 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 @@ -50,7 +50,7 @@ particularly concentrated on any version of this information that is distributed as part of a *released* `g77'. In particular, while this information is intended to apply to the -FSF-0.5.25 version of `g77', only an official *release* of that version +GCC-2.95 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. @@ -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 1999-06-16: + The following information was last updated on 1999-07-08: In 0.5.25, `GCC' 2.95 (`EGCS' 1.2) versus `EGCS' 1.1.2: ======================================================= @@ -90,19 +90,28 @@ In 0.5.25, `GCC' 2.95 (`EGCS' 1.2) versus `EGCS' 1.1.2: 4. `libg2c' (`libf2c') no longer loses track of the file being worked on during a `BACKSPACE' operation. - 5. Automatic arrays now seem to be working on HP-UX systems. + 5. `libg2c' (`libf2c') fixes a bug whereby input to a `NAMELIST' read + involving a repeat count, such as `K(5)=10*3', was not properly + handled by `libf2c'. The first item was written to `K(5)', but + the remaining nine were written elsewhere (still within the array), + not necessarily starting at `K(6)'. - 6. Fix `g77' so it no longer crashes when compiling I/O statements + 6. Automatic arrays now seem to be working on HP-UX systems. + + 7. The `Date' intrinsic now returns the correct result on big-endian + systems. + + 8. Fix `g77' so it no longer crashes when compiling I/O statements using keywords that define `INTEGER' values, such as `IOSTAT=J', where J is other than default `INTEGER' (such as `INTEGER*2'). Instead, it issues a diagnostic. - 7. Fix `g77' so it properly handles `DATA A/RPT*VAL/', where RPT is + 9. 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. Also fix `DATA (A(I),I=1,N)', where `N' is not default `INTEGER' to work instead of crashing `g77'. - 8. The `-ax' option is now obeyed when compiling Fortran programs. + 10. The `-ax' option is now obeyed when compiling Fortran programs. (It is passed to the `f771' driver.) * The new `-fbounds-check' option causes `g77' to compile run-time @@ -129,7 +138,7 @@ In 0.5.25, `GCC' 2.95 (`EGCS' 1.2) versus `EGCS' 1.1.2: to the implementations of these intrinsics using the `EXTERNAL' mechanism (which would avoid the new warnings). - 9. `g77' now warns about a reference to a function when the + 11. `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. @@ -140,23 +149,23 @@ In 0.5.25, `GCC' 2.95 (`EGCS' 1.2) versus `EGCS' 1.1.2: * The `-malign-double' option now reliably aligns *all* double-precision variables and arrays on Intel x86 targets. - 10. Even without the `-malign-double' option, `g77' reliably aligns + 12. Even without the `-malign-double' option, `g77' reliably aligns local double-precision variables that are not in `EQUIVALENCE' areas and not `SAVE''d. - 11. `g77' now open-codes ("inlines") division of `COMPLEX' operands + 13. `g77' now open-codes ("inlines") division of `COMPLEX' operands instead of generating a run-time call to the `libf2c' routines `c_div' or `z_div', unless the `-Os' option is specified. * `g77' no longer generates code to maintain `errno', a C-language concept, when performing operations such as the `SqRt' intrinsic. - 12. `g77' developers can temporarily use the `-fflatten-arrays' option + 14. `g77' developers can temporarily use the `-fflatten-arrays' option to compare how the compiler handles code generation using C-like constructs as compared to the Fortran-like method constructs normally used. - 13. A substantial portion of the `g77' front end's code-generation + 15. 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 @@ -164,11 +173,11 @@ In 0.5.25, `GCC' 2.95 (`EGCS' 1.2) versus `EGCS' 1.1.2: * Support for the `-fugly' option has been removed. - 14. Improve documentation and indexing, including information on Year + 16. Improve documentation and indexing, including information on Year 2000 (Y2K) compliance, and providing more information on internals of the front end. - 15. Upgrade to `libf2c' as of 1999-05-10. + 17. Upgrade to `libf2c' as of 1999-05-10. In 0.5.24 versus 0.5.23: ======================== @@ -231,25 +240,25 @@ In `EGCS' 1.1.1 versus `EGCS' 1.1: In `EGCS' 1.1 versus `EGCS' 1.0.3: ================================== - 16. Fix bugs in the `libU77' intrinsic `HostNm' that wrote one byte + 18. 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. - 17. Assumed arrays with negative bounds (such as `REAL A(-1:*)') no + 19. 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'. - 18. Valid combinations of `EXTERNAL', passing that external as a dummy + 20. 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'. - 19. `CASE DEFAULT' no longer crashes `g77'. + 21. `CASE DEFAULT' no longer crashes `g77'. - 20. The `-Wunused' option no longer issues a spurious warning about + 22. The `-Wunused' option no longer issues a spurious warning about the "master" procedure generated by `g77' for procedures containing `ENTRY' statements. @@ -274,25 +283,25 @@ In `EGCS' 1.1 versus `EGCS' 1.0.3: `libf2c' environment, even when `libf2c' (now `libg2c') is a shared library. - 21. `g77' no longer installs the `f77' command and `f77.1' man page in + 23. `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. - 22. `g77' no longer installs the `libf2c.a' library and `f2c.h' + 24. `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. - 23. The `libf2c.a' library produced by `g77' has been renamed to + 25. 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. - 24. The `f2c.h' include (header) file produced by `g77' has been + 26. 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 @@ -304,11 +313,11 @@ 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. - 25. During the configuration and build process, `g77' creates + 27. 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. - 26. `install-info' now used to update the directory of Info + 28. `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 @@ -317,38 +326,38 @@ 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. - 27. Improve compilation of `FORMAT' expressions so that a null byte is + 29. 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'. - 28. Improve documentation and indexing. + 30. Improve documentation and indexing. - 29. The upgrade to `libf2c' as of 1998-06-18 should fix a variety of + 31. 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 `EGCS' 1.1 versus `g77' 0.5.23: ================================== - 30. Fix a code-generation bug that afflicted Intel x86 targets when + 32. Fix a code-generation bug that afflicted Intel x86 targets when `-O2' was specified compiling, for example, an old version of the `DNRM2' routine. The x87 coprocessor stack was being mismanaged in cases involving assigned `GOTO' and `ASSIGN'. - 31. `g77' no longer produces incorrect code and initial values for + 33. `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. - 32. Fix `g77' crash compiling code containing the construct + 34. Fix `g77' crash compiling code containing the construct `CMPLX(0.)' or similar. - 33. `g77' no longer crashes when compiling code containing + 35. `g77' no longer crashes when compiling code containing specification statements such as `INTEGER(KIND=7) PTR'. - 34. `g77' no longer crashes when compiling code such as `J = SIGNAL(1, + 36. `g77' no longer crashes when compiling code such as `J = SIGNAL(1, 2)'. * `g77' now treats `%LOC(EXPR)' and `LOC(EXPR)' as "ordinary" @@ -359,7 +368,7 @@ In `EGCS' 1.1 versus `g77' 0.5.23: Previously, `g77' treated these expressions as denoting special "pointer" arguments for the purposes of filewide analysis. - 35. Fix `g77' crash (or apparently infinite run-time) when compiling + 37. Fix `g77' crash (or apparently infinite run-time) when compiling certain complicated expressions involving `COMPLEX' arithmetic (especially multiplication). @@ -389,9 +398,9 @@ In `EGCS' 1.1 versus `g77' 0.5.23: * The F90 `System_Clock' intrinsic allows the optional arguments (except for the `Count' argument) to be omitted. - 36. Upgrade to `libf2c' as of 1998-06-18. + 38. Upgrade to `libf2c' as of 1998-06-18. - 37. Improve documentation and indexing. + 39. Improve documentation and indexing. In previous versions: ===================== |