[Bug bootstrap/61583] [4.9/4.10 regression] stage2 and stage3 compare failure due to value range loss

[amodra at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61583

--- Comment #3 from Alan Modra <amodra at gcc dot gnu.org> ---
Author: amodra
Date: Mon Jun 23 15:08:30 2014
New Revision: 211897

URL: https://gcc.gnu.org/viewcvs?rev=211897&root=gcc&view=rev
Log:
gcc/
    PR bootstrap/61583
    * tree-vrp.c (remove_range_assertions): Do not set is_unreachable
    to zero on debug statements.
gcc/testsuite/
    * gcc.dg/pr61583.c: New.


Added:
    trunk/gcc/testsuite/gcc.dg/pr61583.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c