https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88678
--- Comment #6 from Steve Kargl <sgk at troutmask dot apl.washington.edu> --- On Tue, Jan 08, 2019 at 08:37:11PM +0000, bergner at gcc dot gnu.org wrote: > Confirmed. I don't think the mentioned revision caused the problem, other > than > adding a new test case that fails the same way. I simplified test case fails > for me with gcc 7.3. I don't have anything older to test with. > > bergner@pike:~/gcc/BUGS/PR88678$ cat bug.f90 > program foo > use ieee_arithmetic > implicit none > real x > x = ieee_value(x, ieee_signaling_nan) > if (.not. ieee_is_nan(x)) stop 1 > end program foo The backtrace in comment #2 has #0 0x3fffb17f0477 in ??? #1 0x3fffb14f1694 in feenableexcept at ../sysdeps/powerpc/fpu/feenablxcpt.c:44 #2 0x3fffb1765e73 in __ieee_exceptions_MOD_ieee_support_halting at /home/seurer/gcc/gcc-test2/libgfortran/ieee/ieee_exceptions.F90:193 So, this is a better testcase. program foo use ieee_arithmetic logical flag flag = ieee_supporting_halting(ieee_signaling_nan) end program
