update derived files
From-SVN: r27178
This commit is contained in:
parent
677c2af0df
commit
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10
gcc/f/BUGS
10
gcc/f/BUGS
@ -2,7 +2,7 @@
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`bugs0.texi' and `bugs.texi'. `BUGS' is *not* a source file, although
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`bugs0.texi' and `bugs.texi'. `BUGS' is *not* a source file, although
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it is normally included within source distributions.
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it is normally included within source distributions.
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This file lists known bugs in the EGCS-1.2 version of the GNU
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This file lists known bugs in the FSF-0.5.25 version of the GNU
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Fortran compiler. Copyright (C) 1995-1999 Free Software Foundation,
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Fortran compiler. Copyright (C) 1995-1999 Free Software Foundation,
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Inc. You may copy, distribute, and modify it freely as long as you
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Inc. You may copy, distribute, and modify it freely as long as you
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preserve this copyright notice and permission notice.
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preserve this copyright notice and permission notice.
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@ -11,9 +11,9 @@ Known Bugs In GNU Fortran
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*************************
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*************************
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This section identifies bugs that `g77' *users* might run into in
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This section identifies bugs that `g77' *users* might run into in
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the EGCS-1.2 version of `g77'. This includes bugs that are actually in
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the FSF-0.5.25 version of `g77'. This includes bugs that are actually
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the `gcc' back end (GBE) or in `libf2c', because those sets of code are
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in the `gcc' back end (GBE) or in `libf2c', because those sets of code
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at least somewhat under the control of (and necessarily intertwined
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are at least somewhat under the control of (and necessarily intertwined
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with) `g77', so it isn't worth separating them out.
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with) `g77', so it isn't worth separating them out.
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For information on bugs in *other* versions of `g77', see
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For information on bugs in *other* versions of `g77', see
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@ -27,7 +27,7 @@ particularly concentrated on any version of this information that is
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distributed as part of a *released* `g77'.
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distributed as part of a *released* `g77'.
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|
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In particular, while this information is intended to apply to the
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In particular, while this information is intended to apply to the
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EGCS-1.2 version of `g77', only an official *release* of that version
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FSF-0.5.25 version of `g77', only an official *release* of that version
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is expected to contain documentation that is most consistent with the
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is expected to contain documentation that is most consistent with the
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`g77' product in that version.
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`g77' product in that version.
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1236
gcc/f/INSTALL
1236
gcc/f/INSTALL
File diff suppressed because it is too large
Load Diff
156
gcc/f/NEWS
156
gcc/f/NEWS
@ -2,7 +2,7 @@
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`news0.texi' and `news.texi'. `NEWS' is *not* a source file, although
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`news0.texi' and `news.texi'. `NEWS' is *not* a source file, although
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it is normally included within source distributions.
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it is normally included within source distributions.
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This file lists news about the EGCS-1.2 version (and some other
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This file lists news about the FSF-0.5.25 version (and some other
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versions) of the GNU Fortran compiler. Copyright (C) 1995-1999 Free
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versions) of the GNU Fortran compiler. Copyright (C) 1995-1999 Free
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Software Foundation, Inc. You may copy, distribute, and modify it
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Software Foundation, Inc. You may copy, distribute, and modify it
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freely as long as you preserve this copyright notice and permission
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freely as long as you preserve this copyright notice and permission
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@ -50,7 +50,7 @@ particularly concentrated on any version of this information that is
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distributed as part of a *released* `g77'.
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distributed as part of a *released* `g77'.
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|
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In particular, while this information is intended to apply to the
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In particular, while this information is intended to apply to the
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EGCS-1.2 version of `g77', only an official *release* of that version
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FSF-0.5.25 version of `g77', only an official *release* of that version
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is expected to contain documentation that is most consistent with the
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is expected to contain documentation that is most consistent with the
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`g77' product in that version.
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`g77' product in that version.
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@ -66,10 +66,10 @@ about previous `g77' versions up-to-date.
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the mainline, development version of `g77' within `egcs') is available
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the mainline, development version of `g77' within `egcs') is available
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at `http://egcs.cygnus.com/onlinedocs/g77_news.html'.
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at `http://egcs.cygnus.com/onlinedocs/g77_news.html'.
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The following information was last updated on 1999-05-13:
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The following information was last updated on 1999-05-26:
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In `egcs' 1.2 (versus 1.1.2):
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In 0.5.25 (`EGCS' 1.2) versus `EGCS' 1.1.2:
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=============================
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===========================================
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1. `g77' no longer generates bad code for assignments, or other
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1. `g77' no longer generates bad code for assignments, or other
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conversions, of `REAL' or `COMPLEX' constant expressions to type
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conversions, of `REAL' or `COMPLEX' constant expressions to type
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@ -102,15 +102,9 @@ In `egcs' 1.2 (versus 1.1.2):
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7. The `-ax' option is now obeyed when compiling Fortran programs.
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7. The `-ax' option is now obeyed when compiling Fortran programs.
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(It is passed to the `f771' driver.)
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(It is passed to the `f771' driver.)
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* The new `-fsubscript-check' option causes `g77' to compile
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* The new `-fbounds-check' option causes `g77' to compile run-time
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run-time bounds checks of array subscripts, as well as of
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bounds checks of array subscripts, as well as of substring start
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substring start and end points.
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and end points.
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The current implementation uses the `libf2c' library routine
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`s_rnge' to print the diagnostic. Since a future version of `g77'
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might use a different implementation, use the new
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`-ff2c-subscript-check' option if your application requires use of
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`s_rnge' or a compile-time diagnostic.
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* Source file names with the suffixes `.FOR' and `.FPP' now are
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* Source file names with the suffixes `.FOR' and `.FPP' now are
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recognized by `g77' as if they ended in `.for' and `.fpp',
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recognized by `g77' as if they ended in `.for' and `.fpp',
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@ -123,10 +117,10 @@ In `egcs' 1.2 (versus 1.1.2):
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consistent with the other subroutine forms of `libU77' intrinsics.
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consistent with the other subroutine forms of `libU77' intrinsics.
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* `g77' now warns about a reference to an intrinsic that has an
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* `g77' now warns about a reference to an intrinsic that has an
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interface that is not Year 2000 (Y2K) compliant. Also, the
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interface that is not Year 2000 (Y2K) compliant. Also, `libg2c'
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`libg2c' has been changed to increase the likelihood of catching
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has been changed to increase the likelihood of catching references
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references to the implementations of these intrinsics using the
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to the implementations of these intrinsics using the `EXTERNAL'
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`EXTERNAL' mechanism (which would avoid the new warnings).
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mechanism (which would avoid the new warnings).
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8. `g77' now warns about a reference to a function when the
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8. `g77' now warns about a reference to a function when the
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corresponding *subsequent* function program unit disagrees with
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corresponding *subsequent* function program unit disagrees with
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@ -143,15 +137,19 @@ In `egcs' 1.2 (versus 1.1.2):
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local double-precision variables that are not in `EQUIVALENCE'
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local double-precision variables that are not in `EQUIVALENCE'
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areas and not `SAVE''d.
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areas and not `SAVE''d.
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10. `g77' now open-codes ("inlines") division of `COMPLEX' operands
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|
instead of generating a run-time call to the `libf2c' routines
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`c_div' or `z_div', unless the `-Os' option is specified.
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|
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* `g77' no longer generates code to maintain `errno', a C-language
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* `g77' no longer generates code to maintain `errno', a C-language
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concept, when performing operations such as the `SqRt' intrinsic.
|
concept, when performing operations such as the `SqRt' intrinsic.
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|
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10. `g77' developers can temporarily use the `-fflatten-arrays' option
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11. `g77' developers can temporarily use the `-fflatten-arrays' option
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to compare how the compiler handles code generation using C-like
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to compare how the compiler handles code generation using C-like
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constructs as compared to the Fortran-like method constructs
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constructs as compared to the Fortran-like method constructs
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normally used.
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normally used.
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|
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11. A substantial portion of the `g77' front end's code-generation
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12. A substantial portion of the `g77' front end's code-generation
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component was rewritten. It now generates code using facilities
|
component was rewritten. It now generates code using facilities
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more robustly supported by the `gcc' back end. One effect of this
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more robustly supported by the `gcc' back end. One effect of this
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rewrite is that some codes no longer produce a spurious "label LAB
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rewrite is that some codes no longer produce a spurious "label LAB
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@ -159,14 +157,35 @@ In `egcs' 1.2 (versus 1.1.2):
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* Support for the `-fugly' option has been removed.
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* Support for the `-fugly' option has been removed.
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12. Improve documentation and indexing, including information on Year
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13. Improve documentation and indexing, including information on Year
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2000 (Y2K) compliance, and providing more information on internals
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2000 (Y2K) compliance, and providing more information on internals
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of the front end.
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of the front end.
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|
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13. Upgrade to `libf2c' as of 1999-05-10.
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14. Upgrade to `libf2c' as of 1999-05-10.
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|
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In 0.5.24 and `egcs' 1.1.2 (versus 0.5.23 and 1.1.1):
|
In 0.5.24 versus 0.5.23:
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=====================================================
|
========================
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There is no `g77' version 0.5.24 at this time, or planned. 0.5.24
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is the version number designated for bug fixes and, perhaps, some new
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features added, to 0.5.23. Version 0.5.23 requires `gcc' 2.8.1, as
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0.5.24 was planned to require.
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Due to `EGCS' becoming `GCC' (which is now an acronym for "GNU
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|
Compiler Collection"), and `EGCS' 1.2 becoming officially designated
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`GCC' 2.95, there seems to be no need for an actual 0.5.24 release.
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To reduce the confusion already resulting from use of 0.5.24 to
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designate `g77' versions within `EGCS' versions 1.0 and 1.1, as well as
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in versions of `g77' documentation and notices during that period,
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|
"mainline" `g77' version numbering resumes at 0.5.25 with `GCC' 2.95
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(`EGCS' 1.2), skipping over 0.5.24 as a placeholder version number.
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||||||
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To repeat, there is no `g77' 0.5.24, but there is now a 0.5.25.
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||||||
|
Please remain calm and return to your keypunch units.
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||||||
|
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||||||
|
In `EGCS' 1.1.2 versus `EGCS' 1.1.1:
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||||||
|
====================================
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||||||
|
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||||||
* Fix the `IDate' intrinsic (VXT) (in `libg2c') so the returned year
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* Fix the `IDate' intrinsic (VXT) (in `libg2c') so the returned year
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is in the documented, non-Y2K-compliant range of 0-99, instead of
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is in the documented, non-Y2K-compliant range of 0-99, instead of
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@ -180,8 +199,8 @@ In 0.5.24 and `egcs' 1.1.2 (versus 0.5.23 and 1.1.1):
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|
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* Improve documentation.
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* Improve documentation.
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||||||
|
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||||||
In 0.5.24 and `egcs' 1.1.1 (versus 0.5.23 and 1.1):
|
In `EGCS' 1.1.1 versus `EGCS' 1.1:
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||||||
===================================================
|
==================================
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||||||
|
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||||||
* Fix `libg2c' so it performs an implicit `ENDFILE' operation (as
|
* Fix `libg2c' so it performs an implicit `ENDFILE' operation (as
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appropriate) whenever a `REWIND' is done.
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appropriate) whenever a `REWIND' is done.
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||||||
@ -202,51 +221,28 @@ In 0.5.24 and `egcs' 1.1.1 (versus 0.5.23 and 1.1):
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|||||||
some systems (those with shells requiring `else true' clauses on
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some systems (those with shells requiring `else true' clauses on
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`if' constructs for the completion code to be set properly).
|
`if' constructs for the completion code to be set properly).
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|
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||||||
In `egcs' 1.1 (versus 0.5.24):
|
In `EGCS' 1.1 versus `EGCS' 1.0.3:
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==============================
|
==================================
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|
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14. Fix `g77' crash compiling code containing the construct
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15. Fix bugs in the `libU77' intrinsic `HostNm' that wrote one byte
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`CMPLX(0.)' or similar.
|
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|
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15. Fix `g77' crash (or apparently infinite run-time) when compiling
|
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certain complicated expressions involving `COMPLEX' arithmetic
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(especially multiplication).
|
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16. Fix a code-generation bug that afflicted Intel x86 targets when
|
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`-O2' was specified compiling, for example, an old version of the
|
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`DNRM2' routine.
|
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|
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The x87 coprocessor stack was being mismanaged in cases involving
|
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assigned `GOTO' and `ASSIGN'.
|
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|
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* Align static double-precision variables and arrays on Intel x86
|
|
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targets regardless of whether `-malign-double' is specified.
|
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|
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Generally, this affects only local variables and arrays having the
|
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`SAVE' attribute or given initial values via `DATA'.
|
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||||||
|
|
||||||
In `egcs' 1.1 (versus `egcs' 1.0.3):
|
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||||||
====================================
|
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||||||
|
|
||||||
17. Fix bugs in the `libU77' intrinsic `HostNm' that wrote one byte
|
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beyond the end of its `CHARACTER' argument, and in the `libU77'
|
beyond the end of its `CHARACTER' argument, and in the `libU77'
|
||||||
intrinsics `GMTime' and `LTime' that overwrote their arguments.
|
intrinsics `GMTime' and `LTime' that overwrote their arguments.
|
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|
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18. Assumed arrays with negative bounds (such as `REAL A(-1:*)') no
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16. Assumed arrays with negative bounds (such as `REAL A(-1:*)') no
|
||||||
longer elicit spurious diagnostics from `g77', even on systems
|
longer elicit spurious diagnostics from `g77', even on systems
|
||||||
with pointers having different sizes than integers.
|
with pointers having different sizes than integers.
|
||||||
|
|
||||||
This bug is not known to have existed in any recent version of
|
This bug is not known to have existed in any recent version of
|
||||||
`gcc'. It was introduced in an early release of `egcs'.
|
`gcc'. It was introduced in an early release of `egcs'.
|
||||||
|
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19. Valid combinations of `EXTERNAL', passing that external as a dummy
|
17. Valid combinations of `EXTERNAL', passing that external as a dummy
|
||||||
argument without explicitly giving it a type, and, in a subsequent
|
argument without explicitly giving it a type, and, in a subsequent
|
||||||
program unit, referencing that external as an external function
|
program unit, referencing that external as an external function
|
||||||
with a different type no longer crash `g77'.
|
with a different type no longer crash `g77'.
|
||||||
|
|
||||||
20. `CASE DEFAULT' no longer crashes `g77'.
|
18. `CASE DEFAULT' no longer crashes `g77'.
|
||||||
|
|
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21. The `-Wunused' option no longer issues a spurious warning about
|
19. The `-Wunused' option no longer issues a spurious warning about
|
||||||
the "master" procedure generated by `g77' for procedures
|
the "master" procedure generated by `g77' for procedures
|
||||||
containing `ENTRY' statements.
|
containing `ENTRY' statements.
|
||||||
|
|
||||||
@ -271,25 +267,25 @@ In `egcs' 1.1 (versus `egcs' 1.0.3):
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|||||||
`libf2c' environment, even when `libf2c' (now `libg2c') is a
|
`libf2c' environment, even when `libf2c' (now `libg2c') is a
|
||||||
shared library.
|
shared library.
|
||||||
|
|
||||||
22. `g77' no longer installs the `f77' command and `f77.1' man page in
|
20. `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'
|
the `/usr' or `/usr/local' heirarchy, even if the `f77-install-ok'
|
||||||
file exists in the source or build directory. See the
|
file exists in the source or build directory. See the
|
||||||
installation documentation for more information.
|
installation documentation for more information.
|
||||||
|
|
||||||
23. `g77' no longer installs the `libf2c.a' library and `f2c.h'
|
21. `g77' no longer installs the `libf2c.a' library and `f2c.h'
|
||||||
include file in the `/usr' or `/usr/local' heirarchy, even if the
|
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
|
`f2c-install-ok' or `f2c-exists-ok' files exist in the source or
|
||||||
build directory. See the installation documentation for more
|
build directory. See the installation documentation for more
|
||||||
information.
|
information.
|
||||||
|
|
||||||
24. The `libf2c.a' library produced by `g77' has been renamed to
|
22. The `libf2c.a' library produced by `g77' has been renamed to
|
||||||
`libg2c.a'. It is installed only in the `gcc' "private" directory
|
`libg2c.a'. It is installed only in the `gcc' "private" directory
|
||||||
heirarchy, `gcc-lib'. This allows system administrators and users
|
heirarchy, `gcc-lib'. This allows system administrators and users
|
||||||
to choose which version of the `libf2c' library from `netlib' they
|
to choose which version of the `libf2c' library from `netlib' they
|
||||||
wish to use on a case-by-case basis. See the installation
|
wish to use on a case-by-case basis. See the installation
|
||||||
documentation for more information.
|
documentation for more information.
|
||||||
|
|
||||||
25. The `f2c.h' include (header) file produced by `g77' has been
|
23. The `f2c.h' include (header) file produced by `g77' has been
|
||||||
renamed to `g2c.h'. It is installed only in the `gcc' "private"
|
renamed to `g2c.h'. It is installed only in the `gcc' "private"
|
||||||
directory heirarchy, `gcc-lib'. This allows system administrators
|
directory heirarchy, `gcc-lib'. This allows system administrators
|
||||||
and users to choose which version of the include file from
|
and users to choose which version of the include file from
|
||||||
@ -301,11 +297,11 @@ In `egcs' 1.1 (versus `egcs' 1.0.3):
|
|||||||
than the one built and installed as part of the same `g77' version
|
than the one built and installed as part of the same `g77' version
|
||||||
is picked up.
|
is picked up.
|
||||||
|
|
||||||
26. During the configuration and build process, `g77' creates
|
24. During the configuration and build process, `g77' creates
|
||||||
subdirectories it needs only as it needs them. Other cleaning up
|
subdirectories it needs only as it needs them. Other cleaning up
|
||||||
of the configuration and build process has been performed as well.
|
of the configuration and build process has been performed as well.
|
||||||
|
|
||||||
27. `install-info' now used to update the directory of Info
|
25. `install-info' now used to update the directory of Info
|
||||||
documentation to contain an entry for `g77' (during installation).
|
documentation to contain an entry for `g77' (during installation).
|
||||||
|
|
||||||
* Some diagnostics have been changed from warnings to errors, to
|
* Some diagnostics have been changed from warnings to errors, to
|
||||||
@ -314,24 +310,34 @@ In `egcs' 1.1 (versus `egcs' 1.0.3):
|
|||||||
in the `OPEN', `INQUIRE', `READ', and `WRITE' statements, and
|
in the `OPEN', `INQUIRE', `READ', and `WRITE' statements, and
|
||||||
about truncations of various sorts of constants.
|
about truncations of various sorts of constants.
|
||||||
|
|
||||||
28. Improve compilation of `FORMAT' expressions so that a null byte is
|
26. Improve compilation of `FORMAT' expressions so that a null byte is
|
||||||
appended to the last operand if it is a constant. This provides a
|
appended to the last operand if it is a constant. This provides a
|
||||||
cleaner run-time diagnostic as provided by `libf2c' for statements
|
cleaner run-time diagnostic as provided by `libf2c' for statements
|
||||||
like `PRINT '(I1', 42'.
|
like `PRINT '(I1', 42'.
|
||||||
|
|
||||||
29. Improve documentation and indexing.
|
27. Improve documentation and indexing.
|
||||||
|
|
||||||
30. The upgrade to `libf2c' as of 1998-06-18 should fix a variety of
|
28. The upgrade to `libf2c' as of 1998-06-18 should fix a variety of
|
||||||
problems, including those involving some uses of the `T' format
|
problems, including those involving some uses of the `T' format
|
||||||
specifier, and perhaps some build (porting) problems as well.
|
specifier, and perhaps some build (porting) problems as well.
|
||||||
|
|
||||||
In 0.5.24 and `egcs' 1.1 (versus 0.5.23):
|
In `EGCS' 1.1 versus `g77' 0.5.23:
|
||||||
=========================================
|
==================================
|
||||||
|
|
||||||
31. `g77' no longer produces incorrect code and initial values for
|
29. 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'.
|
||||||
|
|
||||||
|
30. `g77' no longer produces incorrect code and initial values for
|
||||||
`EQUIVALENCE' and `COMMON' aggregates that, due to "unnatural"
|
`EQUIVALENCE' and `COMMON' aggregates that, due to "unnatural"
|
||||||
ordering of members vis-a-vis their types, require initial padding.
|
ordering of members vis-a-vis their types, require initial padding.
|
||||||
|
|
||||||
|
31. Fix `g77' crash compiling code containing the construct
|
||||||
|
`CMPLX(0.)' or similar.
|
||||||
|
|
||||||
32. `g77' no longer crashes when compiling code containing
|
32. `g77' no longer crashes when compiling code containing
|
||||||
specification statements such as `INTEGER(KIND=7) PTR'.
|
specification statements such as `INTEGER(KIND=7) PTR'.
|
||||||
|
|
||||||
@ -346,6 +352,16 @@ In 0.5.24 and `egcs' 1.1 (versus 0.5.23):
|
|||||||
Previously, `g77' treated these expressions as denoting special
|
Previously, `g77' treated these expressions as denoting special
|
||||||
"pointer" arguments for the purposes of filewide analysis.
|
"pointer" arguments for the purposes of filewide analysis.
|
||||||
|
|
||||||
|
34. Fix `g77' crash (or apparently infinite run-time) when compiling
|
||||||
|
certain complicated expressions involving `COMPLEX' arithmetic
|
||||||
|
(especially multiplication).
|
||||||
|
|
||||||
|
* Align static double-precision variables and arrays on Intel x86
|
||||||
|
targets regardless of whether `-malign-double' is specified.
|
||||||
|
|
||||||
|
Generally, this affects only local variables and arrays having the
|
||||||
|
`SAVE' attribute or given initial values via `DATA'.
|
||||||
|
|
||||||
* The `g77' driver now ensures that `-lg2c' is specified in the link
|
* The `g77' driver now ensures that `-lg2c' is specified in the link
|
||||||
phase prior to any occurrence of `-lm'. This prevents
|
phase prior to any occurrence of `-lm'. This prevents
|
||||||
accidentally linking to a routine in the SunOS4 `-lm' library when
|
accidentally linking to a routine in the SunOS4 `-lm' library when
|
||||||
@ -366,9 +382,9 @@ In 0.5.24 and `egcs' 1.1 (versus 0.5.23):
|
|||||||
* The F90 `System_Clock' intrinsic allows the optional arguments
|
* The F90 `System_Clock' intrinsic allows the optional arguments
|
||||||
(except for the `Count' argument) to be omitted.
|
(except for the `Count' argument) to be omitted.
|
||||||
|
|
||||||
34. Upgrade to `libf2c' as of 1998-06-18.
|
35. Upgrade to `libf2c' as of 1998-06-18.
|
||||||
|
|
||||||
35. Improve documentation and indexing.
|
36. Improve documentation and indexing.
|
||||||
|
|
||||||
In previous versions:
|
In previous versions:
|
||||||
=====================
|
=====================
|
||||||
|
Loading…
Reference in New Issue
Block a user