From: Craig Burley Date: Thu, 22 Apr 1999 23:15:41 +0000 (-0400) Subject: update NEWS derived file X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=07ead0e89070f9b3dfcb885b2e6ce4f17c594291;p=gcc.git update NEWS derived file From-SVN: r26596 --- diff --git a/gcc/f/NEWS b/gcc/f/NEWS index 5cd2615c9e5..5624c4b93cc 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 1999-04-20: + The following information was last updated on 1999-04-23: In `egcs' 1.2 (versus 1.1.2): ============================= @@ -89,6 +89,16 @@ In `egcs' 1.2 (versus 1.1.2): 4. The `-ax' option is now obeyed when compiling Fortran programs. (It is passed to the `f771' driver.) + * The new `-fsubscript-check' option causes `g77' to compile + run-time bounds checks of array subscripts, as well as of + substring start and end points. + + The current implementation uses the `libf2c' library routine + `s_rnge' to print the diagnostic. Since a future version of `g77' + might use a different implementation, use the new + `-ff2c-subscript-check' option if your application requires use of + `s_rnge' or a compile-time diagnostic. + * Source file names with the suffixes `.FOR' and `.FPP' now are recognized by `g77' as if they ended in `.for' and `.fpp', respectively. @@ -110,11 +120,11 @@ 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. - * Even without the `-malign-double' option, `g77' reliably aligns + 6. 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 + 7. 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 @@ -122,11 +132,11 @@ In `egcs' 1.2 (versus 1.1.2): * Support for the `-fugly' option has been removed. - 6. Improve documentation and indexing, including information on Year + 8. 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. + 9. 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): ===================================================== @@ -168,14 +178,14 @@ In 0.5.24 and `egcs' 1.1.1 (versus 0.5.23 and 1.1): In `egcs' 1.1 (versus 0.5.24): ============================== - 8. Fix `g77' crash compiling code containing the construct + 10. Fix `g77' crash compiling code containing the construct `CMPLX(0.)' or similar. - 9. Fix `g77' crash (or apparently infinite run-time) when compiling + 11. Fix `g77' crash (or apparently infinite run-time) when compiling certain complicated expressions involving `COMPLEX' arithmetic (especially multiplication). - 10. Fix a code-generation bug that afflicted Intel x86 targets when + 12. Fix a code-generation bug that afflicted Intel x86 targets when `-O2' was specified compiling, for example, an old version of the `DNRM2' routine. @@ -191,25 +201,25 @@ In `egcs' 1.1 (versus 0.5.24): In `egcs' 1.1 (versus `egcs' 1.0.3): ==================================== - 11. Fix bugs in the `libU77' intrinsic `HostNm' that wrote one byte + 13. 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. - 12. Assumed arrays with negative bounds (such as `REAL A(-1:*)') no + 14. 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'. - 13. Valid combinations of `EXTERNAL', passing that external as a dummy + 15. 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'. - 14. `CASE DEFAULT' no longer crashes `g77'. + 16. `CASE DEFAULT' no longer crashes `g77'. - 15. The `-Wunused' option no longer issues a spurious warning about + 17. The `-Wunused' option no longer issues a spurious warning about the "master" procedure generated by `g77' for procedures containing `ENTRY' statements. @@ -234,25 +244,25 @@ In `egcs' 1.1 (versus `egcs' 1.0.3): `libf2c' environment, even when `libf2c' (now `libg2c') is a shared library. - 16. `g77' no longer installs the `f77' command and `f77.1' man page in + 18. `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. - 17. `g77' no longer installs the `libf2c.a' library and `f2c.h' + 19. `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. - 18. The `libf2c.a' library produced by `g77' has been renamed to + 20. 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. - 19. The `f2c.h' include (header) file produced by `g77' has been + 21. 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 @@ -264,11 +274,11 @@ 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. - 20. During the configuration and build process, `g77' creates + 22. 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. - 21. `install-info' now used to update the directory of Info + 23. `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 @@ -277,28 +287,28 @@ 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. - 22. Improve compilation of `FORMAT' expressions so that a null byte is + 24. 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'. - 23. Improve documentation and indexing. + 25. Improve documentation and indexing. - 24. The upgrade to `libf2c' as of 1998-06-18 should fix a variety of + 26. 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): ========================================= - 25. `g77' no longer produces incorrect code and initial values for + 27. `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. - 26. `g77' no longer crashes when compiling code containing + 28. `g77' no longer crashes when compiling code containing specification statements such as `INTEGER(KIND=7) PTR'. - 27. `g77' no longer crashes when compiling code such as `J = SIGNAL(1, + 29. `g77' no longer crashes when compiling code such as `J = SIGNAL(1, 2)'. * `g77' now treats `%LOC(EXPR)' and `LOC(EXPR)' as "ordinary" @@ -329,9 +339,9 @@ 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. - 28. Upgrade to `libf2c' as of 1998-06-18. + 30. Upgrade to `libf2c' as of 1998-06-18. - 29. Improve documentation and indexing. + 31. Improve documentation and indexing. In previous versions: =====================