http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59534
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> --- Sorry, Firefox's editor has some issues, this part should be at the top of session, so: Following session can be obtained: (gdb) r The program being debugged has been started already. Start it from the beginning? (y or n) y Starting program: /home/uros/test/./retval1.exe [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". [New Thread 0x7ffff7866700 (LWP 29056)] Breakpoint 4, 0x0000000000400a48 in master.3.f5_._omp_fn.0 () at /home/uros/gcc-svn/trunk/libgomp/testsuite/libgomp.fortran/retval1.f90:95 95 l = l .or. (is_f5 .and. f5 .ne. 6.5) (gdb) p/f $xmm0 $13 = ( (6.5, 0, 0, 0), (5.3723379766381528e-315, 0), (0, 0, -48, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0), (0, 16592, 0, 0, 0, 0, 0, 0), (6.5, 0, 0, 0), (5.3723379766381528e-315, 0), 0 ) (gdb) c Continuing. [Switching to Thread 0x7ffff7866700 (LWP 29056)] Breakpoint 4, 0x0000000000400a48 in master.3.f5_._omp_fn.0 () at /home/uros/gcc-svn/trunk/libgomp/testsuite/libgomp.fortran/retval1.f90:95 95 l = l .or. (is_f5 .and. f5 .ne. 6.5) (gdb) p/f $xmm0 $14 = ( (6.5, 0, 0, 0), (5.3723379766381528e-315, 0), (0, 0, -48, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0), (0, 16592, 0, 0, 0, 0, 0, 0), (6.5, 0, 0, 0), (5.3723379766381528e-315, 0), 0 ) (gdb) c Continuing. Breakpoint 4, 0x0000000000400a48 in master.3.f5_._omp_fn.0 () at /home/uros/gcc-svn/trunk/libgomp/testsuite/libgomp.fortran/retval1.f90:95 95 l = l .or. (is_f5 .and. f5 .ne. 6.5) (gdb) p/f $xmm0 $15 = ( (1.12103877e-44, 0, 0, 0), (3.9525251667299724e-323, 0), (8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0), (8, 0, 0, 0, 0, 0, 0, 0), (1.12103877e-44, 0, 0, 0), (3.9525251667299724e-323, 0), 0 ) (gdb) i r mxcsr mxcsr 0x1f80 [ IM DM ZM OM UM PM ] (gdb) si 0x0000000000400a4f 95 l = l .or. (is_f5 .and. f5 .ne. 6.5) (gdb) i r mxcsr mxcsr 0x1f82 [ DE IM DM ZM OM UM PM ]