[Bug tree-optimization/56145] [4.8/4.9 Regression] Use of too much optimizations -O2 -ffast-math -floop-parallelize-all

mircea.namolaru at inria dot fr gcc-bugzilla@gcc.gnu.org
Tue Feb 24 16:22:00 GMT 2015


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56145

--- Comment #16 from Mircea Namolaru <mircea.namolaru at inria dot fr> ---
Right, the NULL check fixed this for previous versions of GCC.

For the current version, it works without these NULL checks (the NULL paths are
not followed). The relevant scop fields are always initialized to empty maps,
so they are never NULL. The problematic call to compute_deps where the NULL
problem occured was from parallelization check code
(compute_loop_level_carries_dependencies), code no longer in GCC.



More information about the Gcc-bugs mailing list