[Bug rtl-optimization/88904] [9 Regression] Basic block incorrectly skipped in jump threading.

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88904

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Jan 22 09:12:31 2019
New Revision: 268140

URL: https://gcc.gnu.org/viewcvs?rev=268140&root=gcc&view=rev
Log:
        PR rtl-optimization/88904
        * cfgcleanup.c (thread_jump): Verify cond2 doesn't mention
        any nonequal registers before processing BB_END (b).

        * gcc.c-torture/execute/pr88904.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr88904.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgcleanup.c
    trunk/gcc/testsuite/ChangeLog