[Bug optimization/11083] [3.3 regression] ICE in commit_one_edge_insertion, at cfgrtl.c:1438 with -O2 -fnon-call-exceptions

[janis187 at us dot ibm dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11083



------- Additional Comments From janis187 at us dot ibm dot com  2003-06-23 23:02 -------
The regression in 11083 was introduced or exposed with this patch:

2002-06-13  Jeffrey Law  <law@redhat.com>

        * gcse.c (delete_null_pointer_checks_1): Inform caller if any
        null pointer checks were eliminated.  Update prototype.
        (delete_null_pointer_checks): Similarly.
        * rtl.h (delete_null_pointer_checks): Update prototype.
        * toplev.c (rest_of_compilation): Only run cleanup_cfg if
        delete_null_pointer_checks deletes one or more null
        pointer checks.  Do not run cleanup_cfg before gcse, the
        CFG is accurate and optimized at that point.

The regression hunt used the minimized test case from comment #2 on
i686-pc-linux-gnu, compiled with -O2 -fnon-call-exceptions.