[Bug tree-optimization/90316] [8/9/10 Regression] large compile time increase in opt / alias stmt walking for Go example

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90316

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri May  3 11:22:33 2019
New Revision: 270849

URL: https://gcc.gnu.org/viewcvs?rev=270849&root=gcc&view=rev
Log:
2019-05-03  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/90316
        * tree-ssa-pre.c (pass_pre::execute): Re-compute DOM fast queries
        before running VN.

Modified:
    branches/gcc-9-branch/gcc/ChangeLog
    branches/gcc-9-branch/gcc/tree-ssa-pre.c