This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug rtl-optimization/70134] combine misses jump optimization on powerpc64le
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 24 Aug 2016 15:09:44 +0000
- Subject: [Bug rtl-optimization/70134] combine misses jump optimization on powerpc64le
- Auto-submitted: auto-generated
- References: <bug-70134-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70134
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The reason why it is missed on the tree level is due to the code being
undefined. In that it uses uninitialized variables like:
if (iter_5(D) >= itmx_6(D))
goto <bb 10>;
else
goto <bb 7>;