diff options
Diffstat (limited to 'gnu/egcs/gcc/f/news.texi')
| -rw-r--r-- | gnu/egcs/gcc/f/news.texi | 170 |
1 files changed, 102 insertions, 68 deletions
diff --git a/gnu/egcs/gcc/f/news.texi b/gnu/egcs/gcc/f/news.texi index 0a4b8e4e137..ea0a1312f03 100644 --- a/gnu/egcs/gcc/f/news.texi +++ b/gnu/egcs/gcc/f/news.texi @@ -9,7 +9,7 @@ @c in the standalone derivations of this file (e.g. NEWS). @set copyrights-news 1995-1999 -@set last-update-news 1999-05-13 +@set last-update-news 1999-06-04 @include root.texi @@ -151,7 +151,7 @@ is available at The following information was last updated on @value{last-update-news}: -@heading In @code{egcs} 1.2 (versus 1.1.2): +@heading In 0.5.25, @code{GCC} 2.95 (@code{EGCS} 1.2) versus @code{EGCS} 1.1.2: @itemize @bullet @ifclear USERVISONLY @item @@ -217,15 +217,15 @@ The @samp{-ax} option is now obeyed when compiling Fortran programs. @end ifclear @item -The new @samp{-fsubscript-check} option +The new @samp{-fbounds-check} option causes @code{g77} to compile run-time bounds checks of array subscripts, as well as of substring start and end points. -The current implementation uses the @code{libf2c} -library routine @code{s_rnge} to print the diagnostic. -Since a future version of @code{g77} might use a different implementation, -use the new @samp{-ff2c-subscript-check} option -if your application requires use of @code{s_rnge} or a compile-time diagnostic. +@item +@code{libg2c} now supports building as multilibbed library, +which provides better support for systems +that require options such as @samp{-mieee} +to work properly. @item Source file names with the suffixes @samp{.FOR} and @samp{.FPP} @@ -245,7 +245,7 @@ of @code{libU77} intrinsics. @item @code{g77} now warns about a reference to an intrinsic that has an interface that is not Year 2000 (Y2K) compliant. -Also, the @code{libg2c} has been changed to increase the likelihood +Also, @code{libg2c} has been changed to increase the likelihood of catching references to the implementations of these intrinsics using the @code{EXTERNAL} mechanism (which would avoid the new warnings). @@ -282,6 +282,14 @@ that are not in @code{EQUIVALENCE} areas and not @code{SAVE}'d. @end ifclear +@ifclear USERVISONLY +@item +@code{g77} now open-codes (``inlines'') division of @code{COMPLEX} operands +instead of generating a run-time call to +the @code{libf2c} routines @code{c_div} or @code{z_div}, +unless the @samp{-Os} option is specified. +@end ifclear + @item @code{g77} no longer generates code to maintain @code{errno}, a C-language concept, @@ -323,7 +331,34 @@ Upgrade to @code{libf2c} as of 1999-05-10. @end ifclear @end itemize -@heading In 0.5.24 and @code{egcs} 1.1.2 (versus 0.5.23 and 1.1.1): +@heading In 0.5.24 versus 0.5.23: + +There is no @code{g77} version 0.5.24 at this time, +or planned. +0.5.24 is the version number designated for bug fixes and, +perhaps, some new features added, +to 0.5.23. +Version 0.5.23 requires @code{gcc} 2.8.1, +as 0.5.24 was planned to require. + +Due to @code{EGCS} becoming @code{GCC} +(which is now an acronym for ``GNU Compiler Collection''), +and @code{EGCS} 1.2 becoming officially designated @code{GCC} 2.95, +there seems to be no need for an actual 0.5.24 release. + +To reduce the confusion already resulting from use of 0.5.24 +to designate @code{g77} versions within @code{EGCS} versions 1.0 and 1.1, +as well as in versions of @code{g77} documentation and notices +during that period, +``mainline'' @code{g77} version numbering resumes +at 0.5.25 with @code{GCC} 2.95 (@code{EGCS} 1.2), +skipping over 0.5.24 as a placeholder version number. + +To repeat, there is no @code{g77} 0.5.24, but there is now a 0.5.25. +Please remain calm and return to your keypunch units. + +@c 1999-03-15: EGCS 1.1.2 released. +@heading In @code{EGCS} 1.1.2 versus @code{EGCS} 1.1.1: @ifclear USERVISONLY @itemize @bullet @item @@ -352,7 +387,8 @@ Improve documentation. @end itemize @end ifclear -@heading In 0.5.24 and @code{egcs} 1.1.1 (versus 0.5.23 and 1.1): +@c 1998-12-04: EGCS 1.1.1 released. +@heading In @code{EGCS} 1.1.1 versus @code{EGCS} 1.1: @ifclear USERVISONLY @itemize @bullet @item @@ -383,54 +419,8 @@ for the completion code to be set properly). @end itemize @end ifclear -@heading In @code{egcs} 1.1 (versus 0.5.24): -@itemize @bullet -@ifclear USERVISONLY -@item -Fix @code{g77} crash compiling code -containing the construct @samp{CMPLX(0.)} or similar. -@end ifclear - -@ifclear USERVISONLY -@item -Fix @code{g77} crash -(or apparently infinite run-time) -when compiling certain complicated expressions -involving @code{COMPLEX} arithmetic -(especially multiplication). -@end ifclear - -@ifclear USERVISONLY -@cindex DNRM2 -@cindex stack, 387 coprocessor -@cindex Intel x86 -@cindex -O2 -@item -Fix a code-generation bug that afflicted -Intel x86 targets when @samp{-O2} was specified -compiling, for example, an old version of -the @code{DNRM2} routine. - -The x87 coprocessor stack was being -mismanaged in cases involving assigned @code{GOTO} -and @code{ASSIGN}. -@end ifclear - -@cindex alignment -@cindex double-precision performance -@cindex -malign-double -@item -Align static double-precision variables and arrays -on Intel x86 targets -regardless of whether @samp{-malign-double} is specified. - -Generally, this affects only local variables and arrays -having the @code{SAVE} attribute -or given initial values via @code{DATA}. -@end itemize - -@c 1998-09-01: egcs-1.1 released. -@heading In @code{egcs} 1.1 (versus @code{egcs} 1.0.3): +@c 1998-09-03: EGCS 1.1 released. +@heading In @code{EGCS} 1.1 versus @code{EGCS} 1.0.3: @itemize @bullet @ifclear USERVISONLY @item @@ -608,9 +598,26 @@ as well. @end ifclear @end itemize -@heading In 0.5.24 and @code{egcs} 1.1 (versus 0.5.23): +@c 1998-09-03: EGCS 1.1 released. +@heading In @code{EGCS} 1.1 versus @code{g77} 0.5.23: @itemize @bullet @ifclear USERVISONLY +@cindex DNRM2 +@cindex stack, 387 coprocessor +@cindex Intel x86 +@cindex -O2 +@item +Fix a code-generation bug that afflicted +Intel x86 targets when @samp{-O2} was specified +compiling, for example, an old version of +the @code{DNRM2} routine. + +The x87 coprocessor stack was being +mismanaged in cases involving assigned @code{GOTO} +and @code{ASSIGN}. +@end ifclear + +@ifclear USERVISONLY @item @code{g77} no longer produces incorrect code and initial values @@ -621,6 +628,12 @@ vis-a-vis their types, require initial padding. @ifclear USERVISONLY @item +Fix @code{g77} crash compiling code +containing the construct @samp{CMPLX(0.)} or similar. +@end ifclear + +@ifclear USERVISONLY +@item @code{g77} no longer crashes when compiling code containing specification statements such as @samp{INTEGER(KIND=7) PTR}. @@ -645,6 +658,27 @@ Previously, @code{g77} treated these expressions as denoting special ``pointer'' arguments for the purposes of filewide analysis. +@ifclear USERVISONLY +@item +Fix @code{g77} crash +(or apparently infinite run-time) +when compiling certain complicated expressions +involving @code{COMPLEX} arithmetic +(especially multiplication). +@end ifclear + +@cindex alignment +@cindex double-precision performance +@cindex -malign-double +@item +Align static double-precision variables and arrays +on Intel x86 targets +regardless of whether @samp{-malign-double} is specified. + +Generally, this affects only local variables and arrays +having the @code{SAVE} attribute +or given initial values via @code{DATA}. + @item The @code{g77} driver now ensures that @samp{-lg2c} is specified in the link phase prior to any @@ -702,7 +736,7 @@ for such information. @ifclear DOC-NEWS @c 1998-05-20: 0.5.23 released. -@heading In 0.5.23 (versus 0.5.22): +@heading In 0.5.23 versus 0.5.22: @itemize @bullet @item This release contains several regressions against @@ -906,7 +940,7 @@ as well. @end itemize @c 1998-03-16: 0.5.22 released. -@heading In 0.5.22 (versus 0.5.21): +@heading In 0.5.22 versus 0.5.21: @itemize @bullet @ifclear USERVISONLY @item @@ -1096,8 +1130,8 @@ This fixes a formatted-I/O bug that afflicted @end ifclear @end itemize -@c 1998-03-15: egcs-1.0.2 released. -@heading In @code{egcs} 1.0.2 (versus @code{egcs} 1.0.1): +@c 1998-03-18: EGCS 1.0.2 released. +@heading In @code{EGCS} 1.0.2 versus @code{EGCS} 1.0.1: @itemize @bullet @ifclear USERVISONLY @item @@ -1142,8 +1176,8 @@ Fix compiler so it accepts @samp{-fgnu-intrinsics-*} and @samp{-fbadu77-intrinsics-*} options. @end itemize -@c 1998-01-02: egcs-1.0.1 released. -@heading In @code{egcs} 1.0.1 (versus @code{egcs} 1.0): +@c 1998-01-06: EGCS 1.0.1 released. +@heading In @code{EGCS} 1.0.1 versus @code{EGCS} 1.0: @ifclear USERVISONLY @itemize @bullet @item @@ -1152,8 +1186,8 @@ machines such as Alphas. @end itemize @end ifclear -@c 1997-12-03: egcs-1.0 released. -@heading In @code{egcs} 1.0 (versus 0.5.21): +@c 1997-12-03: EGCS 1.0 released. +@heading In @code{EGCS} 1.0 versus @code{g77} 0.5.21: @itemize @bullet @item Version 1.0 of @code{egcs} |