diff options
author | Craig Burley <burley@gcc.gnu.org> | 1999-03-03 02:17:03 -0500 |
---|---|---|
committer | Craig Burley <burley@gcc.gnu.org> | 1999-03-03 02:17:03 -0500 |
commit | 4d7761c1037d607165fc73958a43f895f23a0d82 (patch) | |
tree | 092a9360c8235bb46741ae9df9ad1a9c3f49cdbf | |
parent | c0f9bcf543c7737d57d3e76b5057f666e2fd535d (diff) | |
download | gcc-4d7761c1037d607165fc73958a43f895f23a0d82.zip gcc-4d7761c1037d607165fc73958a43f895f23a0d82.tar.gz gcc-4d7761c1037d607165fc73958a43f895f23a0d82.tar.bz2 |
Update BUGS derived file
From-SVN: r25557
-rw-r--r-- | gcc/f/BUGS | 68 |
1 files changed, 26 insertions, 42 deletions
@@ -6,66 +6,57 @@ permission notice. Bugs in GNU Fortran ******************* - This section identifies bugs that `g77' *users* might run into. -This includes bugs that are actually in the `gcc' back end (GBE) or in -`libf2c', because those sets of code are at least somewhat under the -control of (and necessarily intertwined with) `g77', so it isn't worth -separating them out. + This section identifies bugs that `g77' *users* might run into in +this version of `g77'. This includes bugs that are actually in the +`gcc' back end (GBE) or in `libf2c', because those sets of code are at +least somewhat under the control of (and necessarily intertwined with) +`g77', so it isn't worth separating them out. + + For information on bugs in *other* versions of `g77', *Note News +About GNU Fortran: News. For information on bugs that might afflict people who configure, port, build, and install `g77', *Note Problems Installing::. + * The `IDate' Intrinsic (VXT) fails to return the year in the + documented, non-Y2K-compliant range of 0-99, instead returning 100 + for the year 2000. + + Fixed in `egcs' 1.2. + + * Year 2000 (Y2K) compliance information is missing from the + documentation. + + Fixed in `egcs' 1.2. + * `g77' 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'). Fixed in `egcs' 1.2. + * The `-ax' option is not obeyed when compiling Fortran programs. + (It is not passed to the `f771' driver.) + + Fixed in `egcs' 1.2. + * `g77' fails to warn about a reference to a function when the corresponding *subsequent* function program unit disagrees with the reference concerning the type of the function. Fixed in `egcs' 1.2. - * `g77' sometimes crashes when compiling code containing the - construct `CMPLX(0.)' or similar. This is a `gcc' back-end bug. - It can be worked around using `-fno-emulate-complex', though that - might trigger other, older bugs. Compiling without optimization - is another work-around. - - Fixed in `egcs' 1.1. - - * Automatic arrays aren't working on HP-UX systems, at least in - HP-UX version 10.20. Writing into them apparently causes + * Automatic arrays possibly aren't working on HP-UX systems, at + least in HP-UX version 10.20. Writing into them apparently causes over-writing of statically declared data in the main program. This probably means the arrays themselves are being under-allocated, or pointers to them being improperly handled, e.g. not passed to other procedures as they should be. - * Some Fortran code has been found to be miscompiled by `g77' built - on `gcc' version 2.8.1 on m68k-next-nextstep3 configurations when - using the `-O2' option. Even a C function is known to miscompile - on that configuration when using the `-O2 -funroll-loops' options. - - Fixed in `egcs'. - - * A code-generation bug afflicts Intel x86 targets when `-O2' is - specified compiling, for example, an old version of the `DNRM2' - routine. The x87 coprocessor stack is being mismanaged in cases - where assigned `GOTO' and `ASSIGN' are involved. - - Fixed in `egcs' version 1.1. - * `g77' fails to warn about use of a "live" iterative-DO variable as an implied-DO variable in a `WRITE' or `PRINT' statement (although it does warn about this in a `READ' statement). - * A compiler crash, or apparently infinite run time, can result when - compiling complicated expressions involving `COMPLEX' arithmetic - (especially multiplication). - - Fixed in `egcs' version 1.1. - * Something about `g77''s straightforward handling of label references and definitions sometimes prevents the GBE from unrolling loops. Until this is solved, try inserting or removing @@ -172,13 +163,6 @@ port, build, and install `g77', *Note Problems Installing::. the same "broken" mechanism as that used by versions of `g77' prior to 0.5.20. - * `g77' sometimes produces invalid assembler code when using the - `-fPIC' option (such as compiling for ELF targets) on the Intel - x86 architecture target. The symptom is that the assembler - complains about invalid opcodes. This bug is in the gcc back end. - - Fixed in `egcs' version 1.0.2. - * `g77' currently inserts needless padding for things like `COMMON A,IPAD' where `A' is `CHARACTER*1' and `IPAD' is `INTEGER(KIND=1)' on machines like x86, because the back end insists that `IPAD' be |