[Bug tree-optimization/80492] [5/6/7 Regression] Wrong code when unrolling a loop with inline asm and local regs

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80492

--- Comment #17 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed May  3 10:59:25 2017
New Revision: 247543

URL: https://gcc.gnu.org/viewcvs?rev=247543&root=gcc&view=rev
Log:
2017-05-03  Richard Biener  <rguent...@suse.de>

        Revert
        PR tree-optimization/80492
        * tree-ssa-alias.c (decl_refs_may_alias_p): Handle
        compare_base_decls returning dont-know properly.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-alias.c