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authorCraig Burley <burley@gcc.gnu.org>1999-03-03 02:17:03 -0500
committerCraig Burley <burley@gcc.gnu.org>1999-03-03 02:17:03 -0500
commit4d7761c1037d607165fc73958a43f895f23a0d82 (patch)
tree092a9360c8235bb46741ae9df9ad1a9c3f49cdbf
parentc0f9bcf543c7737d57d3e76b5057f666e2fd535d (diff)
downloadgcc-4d7761c1037d607165fc73958a43f895f23a0d82.tar.gz
Update BUGS derived file
From-SVN: r25557
-rw-r--r--gcc/f/BUGS68
1 files changed, 26 insertions, 42 deletions
diff --git a/gcc/f/BUGS b/gcc/f/BUGS
index 0a8da62b4d6..9a0472c6d31 100644
--- a/gcc/f/BUGS
+++ b/gcc/f/BUGS
@@ -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