https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69682
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note the documentation says the following:
---
@item -fsignaling-nans
@opindex fsignaling-nans
Compile code assuming that IEEE signaling NaNs may generate user-visible
traps during floating-point operations. Setting this option disables
optimizations that may change the number of exceptions visible with
signaling NaNs. This option implies @option{-ftrapping-math}.
This option causes the preprocessor macro @code{__SUPPORT_SNAN__} to
be defined.
The default is @option{-fno-signaling-nans}.
This option is experimental and does not currently guarantee to
disable all GCC optimizations that affect signaling NaN behavior.
---
but even with -fsignalling-nans the bug reproduces with GCC 5.3.0.
This is due to PR69308 which I believe is a dup of this bug (this means
trunk is not affected). This will be fixed in GCC 5.4.0.
*** This bug has been marked as a duplicate of bug 69308 ***
