I am using gcc 3.4.3 on solais 10.
g++ -v:
Reading specs from /usr/sfw/lib/gcc/i386-pc-solaris2.10/3.4.3/specs
Configured with: /builds/sfw10-gate/usr/src/cmd/gcc/gcc-3.4.3/configure
--prefix=/usr/sfw --with-as=/usr/sfw/bin/gas --with-gnu-as
--with-ld=/usr/ccs/bin/ld --without-gnu-ld --enable-languages=c,c++
--enable-shared
Thread model: posix
gcc version 3.4.3 (csl-sol210-3_4-branch+sol_rpath)
If I compile the code, with
% g++ reduced.C
and run it, it returns as expected. The output is
% ./a.out
-NaN
If I compile it with optimization
% g++ reduced.C -O
and run it, it does not return!
If I remove the unused function from the code, the problem disappears. If I
change the functions definition to take vector<double> instead of a
vector<int>,
the problem disappears.
--
Summary: program hangs when compiled with -O
Product: gcc
Version: 3.4.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: boris dot breidenbach at physik dot uni-erlangen dot de
GCC host triplet: csl-sol210-3_4-branch+sol_rpath
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27005
