[Bug target/70232] [6 regression] excessive stack usage with -O2

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70232

--- Comment #17 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Tue Mar 22 21:32:34 2016
New Revision: 234409

URL: https://gcc.gnu.org/viewcvs?rev=234409&root=gcc&view=rev
Log:
        PR target/70232
        tree-ssa-threadbackward.c
        (fsm_find_control_statement_thread_paths): Correctly distinguish
        between old style jump threads vs FSM jump threads.

        PR target/70232
        * gcc.dg/tree-ssa/pr70232.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr70232.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-threadbackward.c