------- Comment #6 from jv244 at cam dot ac dot uk 2010-04-23 17:29 -------
both testcases work with 4.1.2. I've also checked various versions of valgrind,
which all report consistent results. Also 4.5 only fails on the original
testcase. for reference, -v gives:
gcc-4.5/bin/gfortran-4.5 -O3 -fbounds-check -g -static -v t.f90
Driving: gcc-4.5/bin/gfortran-4.5 -O3 -fbounds-check -g -static -v t.f90
-lgfortran -lm
Using built-in specs.
COLLECT_GCC=gcc-4.5/bin/gfortran-4.5
COLLECT_LTO_WRAPPER=/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /lustre/ESPFS/scratch/pci/vondele/gcc-4.5/gcc-4.5.0/configure
--prefix=/home/pci/vondele/gcc-4.5 --enable-languages=c,c++,fortran
--program-suffix=-4.5 --disable-multilib --with-gmp=/home/pci/vondele/gcc-4.5
--with-mpfr=/home/pci/vondele/gcc-4.5 --with-mpc=/home/pci/vondele/gcc-4.5
Thread model: posix
gcc version 4.5.0 (GCC)
COLLECT_GCC_OPTIONS='-O3' '-fbounds-check' '-g' '-static' '-v' '-mtune=generic'
'-march=x86-64'
/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/f951
t.f90 -quiet -dumpbase t.f90 -mtune=generic -march=x86-64 -auxbase t -g -O3
-version -fbounds-check -fintrinsic-modules-path
/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.5.0/finclude
-o /tmp/cc4wFHAz.s
GNU Fortran (GCC) version 4.5.0 (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.5.0, GMP version 4.2.4, MPFR version 2.4.1,
MPC version 0.8
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU Fortran (GCC) version 4.5.0 (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.5.0, GMP version 4.2.4, MPFR version 2.4.1,
MPC version 0.8
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
COLLECT_GCC_OPTIONS='-O3' '-fbounds-check' '-g' '-static' '-v' '-mtune=generic'
'-march=x86-64'
as -V -Qy --64 -o /tmp/ccvIH9et.o /tmp/cc4wFHAz.s
GNU assembler version 2.16.91.0.5 (x86_64-suse-linux) using BFD version
2.16.91.0.5 20051219 (SUSE Linux)
COMPILER_PATH=/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/:/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../libexec/gcc/
LIBRARY_PATH=/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.5.0/:/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/:/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../lib64/:/lib/../lib64/:/usr/lib/../lib64/:/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-O3' '-fbounds-check' '-g' '-static' '-v' '-mtune=generic'
'-march=x86-64'
/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/collect2
-m elf_x86_64 -static /usr/lib/../lib64/crt1.o /usr/lib/../lib64/crti.o
/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.5.0/crtbeginT.o
-L/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.5.0
-L/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc
-L/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../lib64
-L/lib/../lib64 -L/usr/lib/../lib64
-L/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../..
/tmp/ccvIH9et.o -lgfortran -lm --start-group -lgcc -lgcc_eh -lc --end-group
/panfs/panfs0.ften.es.hpcn.uzh.ch/es/home/pci/vondele/gcc-4.5/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.5.0/crtend.o
/usr/lib/../lib64/crtn.o
--
jv244 at cam dot ac dot uk changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to fail|4.3.1 4.4.0 4.6.0 |4.3.1 4.4.0 4.5.0 4.6.0
Known to work| |4.1.2
Summary|wrong code with -fbounds- |[4.3/4.4/4.5/4.6 Regression]
|check -funswitch-loops |wrong code with -fbounds-
| |check -funswitch-loops
Target Milestone|--- |4.3.5
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43866
