https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81906
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |NEW
Last reconfirmed| |2017-08-20
Resolution|INVALID |---
Summary|Calls to rint() wrongly |[7/8 Regression] Calls to
|optimized away starting in |rint() wrongly optimized
|g++ 6 |away starting in g++ 6
Ever confirmed|0 |1
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> ---
Indeed you want -frounding-math, and with gcc-6 that makes things work, but
starting with gcc-7 it doesn't anymore. (gimple looks fine, the problem comes
later)
