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19
gcc/f/BUGS
19
gcc/f/BUGS
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@ -15,6 +15,25 @@ separating them out.
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For information on bugs that might afflict people who configure,
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port, build, and install `g77', *Note Problems Installing::.
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* `g77''s version of `gcc', and probably `g77' itself, cannot be
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reliably used with the `-O2' option (or higher) on Digital
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Semiconductor Alpha AXP machines. The problem is most immediately
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noticed in differences discovered by `make compare' following a
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bootstrap build using `-O2'. It also manifests itself as a
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failure to compile `DATA' statements such as `DATA R/7./'
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correctly; in this case, `R' might be initialized to `4.0'.
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Until this bug is fixed, use only `-O1' or no optimization.
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* A code-generation bug afflicts Intel x86 targets when `-O2' is
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specified compiling, for example, an old version of the `DNRM2'
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routine. The x87 coprocessor stack is being somewhat mismanaged
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in cases where assigned `GOTO' and `ASSIGN' are involved.
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Version 0.5.21 of `g77' contains an initial effort to fix the
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problem, but this effort is incomplete, and a more complete fix is
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planned for the next release.
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* Work is needed on the `SIGNAL()' intrinsic to ensure that pointers
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and integers are properly handled on all targets, including 64-bit
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machines.
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34
gcc/f/NEWS
34
gcc/f/NEWS
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@ -55,6 +55,10 @@ In 0.5.21:
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`-fno-automatic' option is in effect. This avoids a compiler
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crash in some cases.
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* The `-malign-double' option now reliably aligns `DOUBLE PRECISION'
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optimally on Pentium and Pentium Pro architectures (586 and 686 in
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`gcc').
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* New option `-Wno-globals' disables warnings about "suspicious" use
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of a name both as a global name and as the implicit name of an
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intrinsic, and warnings about disagreements over the number or
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@ -82,6 +86,11 @@ In 0.5.21:
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type of that procedure, or where disagreements about the number or
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nature of arguments exist. This avoids a compiler crash.
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* Fix parsing bug whereby `g77' rejected a second initialization
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specification immediately following the first's closing `/' without
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an intervening comma in a `DATA' statement, and the second
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specification was an implied-DO list.
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* Improve performance of the `gcc' back end so certain complicated
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expressions involving `COMPLEX' arithmetic (especially
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multiplication) don't appear to take forever to compile.
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@ -89,11 +98,12 @@ In 0.5.21:
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* Fix a couple of profiling-related bugs in `gcc' back end.
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* Integrate GNU Ada's (GNAT's) changes to the back end, which
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consist almost entirely of bug fixes.
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consist almost entirely of bug fixes. These fixes are circa
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version 3.10p of GNAT.
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* Include some other `gcc' fixes that seem useful in `g77''s version
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of `gcc'. (See `gcc/ChangeLog' for details--compare it to that
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file in the vanilla `gcc-2.7.2.2.tar.gz' distribution.)
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file in the vanilla `gcc-2.7.2.3.tar.gz' distribution.)
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* Fix `libU77' routines that accept file and other names to strip
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trailing blanks from them, for consistency with other
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diagnostics during the assembler or linker phase, a compiler
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crash, or generation of incorrect code.
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* Improve alias analysis code to properly handle output registers
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(such as the `%o' registers on the SPARC).
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* Make some fixes to alias analysis code.
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* Add support for `restrict' keyword in `gcc' front end.
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* Support `gcc' version 2.7.2.3 (modified by `g77' into version
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2.7.2.3.f.1), and remove support for prior versions of `gcc'.
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* Incorporate GNAT's patches to the `gcc' back end into `g77''s, so
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GNAT users do not need to apply GNAT's patches to build both GNAT
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and `g77' from the same source tree.
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* Modify `make' rules and related code so that generation of Info
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documentation doesn't require compilation using `gcc'.
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documentation doesn't require compilation using `gcc'. Now, any
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ANSI C compiler should be adequate to produce the `g77'
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documentation (in particular, the tables of intrinsics) from
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scratch.
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* Add `INT2' and `INT8' intrinsics.
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* Fix `libf2c' build procedure to re-archive library if previous
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attempt to archive was interrupted.
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* Fix `gcc' to more easily support configuring on Pentium Pro (686)
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systems.
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* Change `gcc' to unroll loops only during the last invocation (of
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as many as two invocations) of loop optimization.
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properly handle the `-nostdlib', `-M', `-MM', `-nodefaultlibs',
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and `-Xlinker' options.
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* Upgrade to `libf2c' as of 1997-08-06.
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* Upgrade to `libf2c' as of 1997-08-16.
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* Modify `libf2c' to consistently and clearly diagnose recursive I/O
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(at run time).
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73
gcc/f/g77.1
73
gcc/f/g77.1
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@ -1,30 +1,30 @@
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.\" Copyright (c) 1995, 1996 Free Software Foundation -*-Text-*-
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.\" Copyright (c) 1995-1997 Free Software Foundation -*-Text-*-
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.\" See section COPYING for conditions for redistribution
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.\" FIXME: no info here on predefines. Should there be? extra for F77...
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.TH G77 1 "1997-06-20" "GNU Tools" "GNU Tools"
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.TH G77 1 "1997-09-09" "GNU Tools" "GNU Tools"
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.de BP
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.sp
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.ti \-.2i
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\(**
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..
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.SH NAME
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g77 \- GNU project F77 Compiler (v0.5.18)
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g77 \- GNU project Fortran Compiler (v0.5.21)
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.SH SYNOPSIS
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.RB g77 " [" \c
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.IR option " | " "filename " ].\|.\|.
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.SH WARNING
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The information in this man page is an extract from the full
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documentation of the GNU Fortran compiler (version 0.5.18),
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and is limited to the meaning of the options.
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documentation of the GNU Fortran compiler (version 0.5.21),
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and is limited to the meaning of some of the options.
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.PP
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This man page is not up to date, since no volunteers want to
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maintain it. If you find a discrepancy between the man page and the
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software, please check the Info file, which is the authoritative
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documentation.
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.PP
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The version of GNU Fortran documented by the Info file is 0.5.21,
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which includes substantial improvements and changes since 0.5.18,
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the version documented in this man page.
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.\" .PP
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.\" The version of GNU Fortran documented by the Info file is 0.5.21,
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.\" which includes substantial improvements and changes since 0.5.21,
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.\" the version documented in this man page.
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.PP
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If we find that the things in this man page that are out of date cause
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significant confusion or complaints, we will stop distributing the man
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@ -37,7 +37,7 @@ For complete and current documentation, refer to the Info file `\|\c
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.B g77\c
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\&\|' or the manual
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.I
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Using and Porting GNU Fortran (for version 0.5.18)\c
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Using and Porting GNU Fortran (for version 0.5.21)\c
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\&. Both are made from the Texinfo source file
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.BR g77.texi .
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.PP
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@ -69,27 +69,40 @@ of
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The C and F77 compilers are integrated;
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.B g77
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is a program to call
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.B gcc with options to recognize F77.
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.B gcc
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with options to recognize programs written in Fortran (ANSI FORTRAN 77,
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also called F77).
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.B gcc
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processes input files
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through one or more of four stages: preprocessing, compilation,
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assembly, and linking. This man page contains full descriptions for
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.I only
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F77 specific aspects of the compiler, though it also contains
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F77-specific aspects of the compiler, though it also contains
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summaries of some general-purpose options. For a fuller explanation
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of the compiler, see
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.BR gcc ( 1 ).
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For complete documentation on GNU Fortran, type
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.BR info g77
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For complete documentation on GNU Fortran, type `\|\c
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.B info g77\c
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\&\|'.
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F77 source files use the suffix `\|\c
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.B .f\c
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\&\|' or `\|\c
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.B .for\c
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\&\|'; F77 files to be preprocessed by
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.BR cpp ( 1 )
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use the suffix `\|\c
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.B .F\c
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\&\|'.
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\&\|' or `\|\c
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.B .fpp\c
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\&\|'; Ratfor source files use the suffix `\|\c
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.B .r\c
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\&\|' (though
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.B ratfor
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itself is not supplied as part of
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.B g77\c
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\&).
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.SH OPTIONS
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There are many command-line options, including options to control
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details of optimization, warnings, and code generation, which are
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@ -242,10 +255,8 @@ to disable actual invocation of
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.RB ` true '
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is the name of a UNIX command that simply returns success status).
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The command
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.RB ` "gcc -v" '
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is the appropriate one to determine the g77 and GCC version numbers;
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it will produce an irrelevant error message from
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.RB ` ld '.
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.RB ` "g77 -v" '
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is the appropriate one to determine the g77 and GCC version numbers.
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.TP
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.B \-Wall
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Issue warnings for conditions which pertain to usage that we recommend
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@ -265,6 +276,8 @@ file.F preprocessed Fortran source file
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.br
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file.fpp preprocessed Fortran source file
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.br
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file.r Ratfor source file (ratfor not included)
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.br
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file.s assembly language file
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.br
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file.o object file
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@ -292,12 +305,14 @@ files
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.br
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\fILIBDIR\fR/include standard gcc directory for
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.B #include
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files
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.br
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files.
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.sp
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.I LIBDIR
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is usually
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.B /usr/local/lib/\c
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.IR machine / version .
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.br
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.sp
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.I TMPDIR
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comes from the environment variable
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.B TMPDIR
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|
@ -309,16 +324,16 @@ if available, else
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.SH "SEE ALSO"
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gcc(1), cpp(1), as(1), ld(1), gdb(1), adb(1), dbx(1), sdb(1).
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.br
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.RB "`\|" g77 "\|', `\|" gcc "\|', `\|" cpp \|',
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.RB `\| as \|', `\| ld \|',
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.RB "`\|" g77 "\|', `\|" gcc "\|', `\|" cpp "\|',"
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.RB "`\|" as "\|', `\|" ld "\|',"
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and
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.RB `\| gdb \|'
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.RB "`\|" gdb "\|'"
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entries in
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.B info\c
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\&.
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.br
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.I
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Using and Porting GNU Fortran (for version 0.5.18)\c
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Using and Porting GNU Fortran (for version 0.5.21)\c
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, James Craig Burley;
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.I
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Using and Porting GNU CC (for version 2.0)\c
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|
@ -337,12 +352,12 @@ gld: the GNU linker\c
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, Steve Chamberlain and Roland Pesch.
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.SH BUGS
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For instructions on how to report bugs, see the file
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.B DOC
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in the g77 distribution.
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For instructions on how to report bugs, type `\|\c
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.B info g77 -n Bugs\c
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\&\|'.
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.SH COPYING
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Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
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Copyright (c) 1991-1997 Free Software Foundation, Inc.
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.PP
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Permission is granted to make and distribute verbatim copies of
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this manual provided the copyright notice and this permission notice
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|
|
|
@ -1,20 +1,20 @@
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970811
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970909
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This directory contains .diff files for various GNU CC distributions
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supported by this version of GNU Fortran.
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The name of a file includes which gcc version to which it applies.
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For example, 2.7.2.2.diff is the patch file for gcc version 2.7.2.2.
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For example, 2.7.2.3.diff is the patch file for gcc version 2.7.2.3.
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To apply a .diff file to, say, gcc 2.7.2.2, one might use the following
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To apply a .diff file to, say, gcc 2.7.2.3, one might use the following
|
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command (where the current directory contains the gcc source distribution
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after merging into it the g77 source distribution, which would be
|
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named gcc-2.7.2.2 in this example):
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named gcc-2.7.2.3 in this example):
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patch -p1 -d gcc-2.7.2.2 < gcc-2.7.2.2/f/gbe/2.7.2.2.diff
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patch -p1 -d gcc-2.7.2.3 < gcc-2.7.2.3/f/gbe/2.7.2.3.diff
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This version of g77 is best combined with gcc versions 2.7.2.2.
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This version of g77 is best combined with gcc versions 2.7.2.3.
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However, note that applying any of these patches does _not_ update
|
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the gcc.info* files that constitute the Info documentation for gcc.
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|
@ -30,7 +30,7 @@ writing), build, and install it, then try the above command (as
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makeinfo is part of texinfo).
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This distribution of g77 is not supported for versions of gcc prior
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to 2.7.2.2.
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to 2.7.2.3.
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If you are using a version of gcc more recent than the most
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||||
recent .diff file's version, try the most recent .diff ONLY
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|
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|
@ -1,5 +1,5 @@
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/* global.h -- Public #include File (module.h template V1.0)
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||||
Copyright (C) 1995 Free Software Foundation, Inc.
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||||
Copyright (C) 1995, 1997 Free Software Foundation, Inc.
|
||||
Contributed by James Craig Burley (burley@gnu.ai.mit.edu).
|
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This file is part of GNU Fortran.
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|
|
|
@ -1,5 +1,5 @@
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|||
/* lang-specs.h file for Fortran
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||||
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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||||
Copyright (C) 1995-1997 Free Software Foundation, Inc.
|
||||
Contributed by James Craig Burley (burley@gnu.ai.mit.edu).
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||||
|
||||
This file is part of GNU Fortran.
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|
|
|
@ -3,7 +3,7 @@ static char junk[] = "\n@(#)LIBF77 VERSION 19970404\n";
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/*
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*/
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char __G77_LIBF77_VERSION__[] = "0.5.21-19970811";
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char __G77_LIBF77_VERSION__[] = "0.5.21";
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/*
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2.00 11 June 1980. File version.c added to library.
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|
|
|
@ -73,7 +73,7 @@ f_exit(void)
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|||
#endif
|
||||
{ int i;
|
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static cllist xx;
|
||||
if (f__init & 1)
|
||||
if (! (f__init & 1))
|
||||
return; /* Not initialized, so no open units. */
|
||||
if (!xx.cerr) {
|
||||
xx.cerr=1;
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
static char junk[] = "\n@(#) LIBU77 VERSION 19970609\n";
|
||||
|
||||
char __G77_LIBU77_VERSION__[] = "0.5.21-19970811";
|
||||
char __G77_LIBU77_VERSION__[] = "0.5.21";
|
||||
|
||||
#include <stdio.h>
|
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|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
/* stu.c -- Implementation File (module.c template V1.0)
|
||||
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
|
||||
Copyright (C) 1995-1997 Free Software Foundation, Inc.
|
||||
Contributed by James Craig Burley (burley@gnu.ai.mit.edu).
|
||||
|
||||
This file is part of GNU Fortran.
|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
/* Implementation of Fortran symbol manager
|
||||
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
|
||||
Copyright (C) 1995-1997 Free Software Foundation, Inc.
|
||||
Contributed by James Craig Burley (burley@gnu.ai.mit.edu).
|
||||
|
||||
This file is part of GNU Fortran.
|
||||
|
|
Loading…
Reference in New Issue