diff options
Diffstat (limited to 'gcc/f/BUGS')
| -rw-r--r-- | gcc/f/BUGS | 50 |
1 files changed, 2 insertions, 48 deletions
diff --git a/gcc/f/BUGS b/gcc/f/BUGS index fcbf9b7bb91..aa6bf3709ea 100644 --- a/gcc/f/BUGS +++ b/gcc/f/BUGS @@ -25,27 +25,6 @@ port, build, and install `g77', *Note Problems Installing::. Until this bug is fixed, use only `-O1' or no optimization. - * 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 somewhat mismanaged - in cases where assigned `GOTO' and `ASSIGN' are involved. - - Version 0.5.21 of `g77' contains an initial effort to fix the - problem, but this effort is incomplete, and a more complete fix is - planned for the next release. - - * Work is needed on the `SIGNAL()' intrinsic to ensure that pointers - and integers are properly handled on all targets, including 64-bit - machines. - - * When using `-fugly-comma', `g77' assumes an extra `%VAL(0)' - argument is to be passed to intrinsics taking no arguments, such - as `IARGC()', which in turn reject such a call. Although this has - been worked around for 0.5.18 due to changes in the handling of - intrinsics, `g77' needs to do the ugly-argument-appending trick - only for external-function invocation, as this would probably be - more consistent with compilers that default to using that trick. - * 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 @@ -151,30 +130,6 @@ port, build, and install `g77', *Note Problems Installing::. potential, with the current setup, for interface differences in the way such areas are laid out between `g77' and other compilers. - * Some crashes occur when compiling under Solaris on x86 machines. - - Nothing has been heard about any such problems for some time, so - this is considering a closed item as of 0.5.20. Please submit any - bug reports pertinent to `g77''s support for Solaris/x86 systems. - - * RS/6000 support is not complete as of the gcc 2.6.3 back end. The - 2.7.0 back end appears to fix this problem, or at least mitigate - it significantly, but there is at least one known problem that is - likely to be a code-generation bug in `gcc-2.7.0' plus - `g77-0.5.16'. This problem shows up only when compiling the - Fortran program with `-O'. - - Nothing has been heard about any RS/6000 problems for some time, - so this is considering a closed item as of 0.5.20. Please submit - any bug reports pertinent to `g77''s support for RS/6000 systems. - - * SGI support is known to be a bit buggy. The known problem shows - up only when compiling the Fortran program with `-O'. - - It is possible these problems have all been fixed in 0.5.20 by - emulating complex arithmetic in the front end. Please submit any - bug reports pertinent to `g77''s support for SGI systems. - * `g77' doesn't work perfectly on 64-bit configurations such as the Alpha. This problem is expected to be largely resolved as of version 0.5.20, and further addressed by 0.5.21. Version 0.6 @@ -210,8 +165,7 @@ port, build, and install `g77', *Note Problems Installing::. general expressions (other than simple variables/arrays), to procedures when compiling on some systems (such as i386) with `-fPIC', as in when compiling for ELF targets. The symptom is - that the assembler complains about invalid opcodes. More - investigation is needed, but the problem is almost certainly in - the gcc back end, and it apparently occurs only when compiling + that the assembler complains about invalid opcodes. This bug is + in the gcc back end, and it apparently occurs only when compiling sufficiently complicated functions *without* the `-O' option. |