https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #14 from David Binderman ---
I confirm that the problem seems to have gone away.
I used this configure script:
CC="gcc -g1 -O3 -march=znver3" CXX="g++ -g1 -O3 -march=znver3" \
../trunk/configure --prefix=$HOME/gcc/results.$DATE.valgr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
Andre Vehreschild changed:
What|Removed |Added
Resolution|--- |WORKSFORME
Status|WAITIN
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #12 from David Binderman ---
(In reply to Tobias Burnus from comment #11)
> It might be that some code optimizes converts
...
> It might be that the either the middle end of GCC does this optimization or
> that valgrind does this in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #11 from Tobias Burnus ---
(In reply to David Binderman from comment #10)
> lhs_caf_attr.codimension is uninitialised.
It is clear that lhs_caf_attr is uninitialized
- if and only if flag_coarray != GFC_FCOARRAY_LIB
It might be that
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #10 from David Binderman ---
I added the debug lines
fprintf( stderr, "%d\n", flag_coarray);
fprintf( stderr, "%d\n", lhs_caf_attr.codimension);
fprintf( stderr, "%d\n", rhs_caf_attr.codimension);
fprintf( stderr, "%d\n", lhs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #9 from Martin Liška ---
I must say the code looks fine to me as well.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #8 from David Binderman ---
(In reply to Martin Liška from comment #6)
> Can you please point to the source file.
./BLAS/SRC/dcabs1.f
I have attached a copy anyway.
> And can you please use the following valgrind option:
> --expens
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #7 from David Binderman ---
Created attachment 50103
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50103&action=edit
fortran source code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #6 from Martin Liška ---
(In reply to David Binderman from comment #5)
> Another test case. I compiled source code file dcabs1.f, from the lapack
> package.
>
> I got
>
> $ /home/dcb/gcc/results.20210131.valgrind/bin/gfortran dcabs1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #5 from David Binderman ---
Another test case. I compiled source code file dcabs1.f, from the lapack
package.
I got
$ /home/dcb/gcc/results.20210131.valgrind/bin/gfortran dcabs1.f
==76833== Conditional jump or move depends on uninit
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
Tobias Burnus changed:
What|Removed |Added
CC||burnus at gcc dot gnu.org
--- Comment #4
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
Martin Liška changed:
What|Removed |Added
Status|UNCONFIRMED |WAITING
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
David Binderman changed:
What|Removed |Added
CC||vehre at gcc dot gnu.org
--- Comment #
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98904
--- Comment #1 from David Binderman ---
The compile line of relevance is
/home/dcb/gcc/working.valgrind/./gcc/gfortran
-B/home/dcb/gcc/working.valgrind/./gcc/
-B/home/dcb/gcc/results.20210131.valgrind/x86_64-pc-linux-gnu/bin/
-B/home/dcb/gcc/res
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