[Bug rtl-optimization/55270] [4.8 Regression] ICE in get_loop_body, at cfgloop.c:823

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55270

--- Comment #10 from Marek Polacek <mpolacek at gcc dot gnu.org> 2013-01-28 16:43:31 UTC ---
Unfortunately this patch causes a few FAILs, e.g.:

/home/polacek/src/gcc/gcc/testsuite/gcc.c-torture/compile/20020604-1.c: In
function ‘foo’:
/home/polacek/src/gcc/gcc/testsuite/gcc.c-torture/compile/20020604-1.c:15:1:
internal compiler error: in calc_dfs_tree, at dominance.c:397
 foo (unsigned int n, int x, int y, unsigned char *z)
 ^
0x63c87b calc_dfs_tree
    /home/polacek/src/gcc/gcc/dominance.c:397
0x63ca66 calculate_dominance_info(cdi_direction)
    /home/polacek/src/gcc/gcc/dominance.c:658
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

I can take a look (but probably only tomorrow).