[Bug tree-optimization/56321] [4.8 Regression] ICE:segfault in midend for -funsafe-math-optimizations -O3

wschmidt at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Feb 14 22:27:00 GMT 2013


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56321

William J. Schmidt <wschmidt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |wschmidt at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #7 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2013-02-14 22:27:21 UTC ---
I see.  The problem is a memory VUSE on the return statement that no longer has
a def.  The VDEF was associated with the __builtin_pow statement that was
expanded.  Looks like I need to release the SSA name.  Working on a fix.



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