[Bug tree-optimization/90078] [7/8/9 Regression] ICE with deep templates caused by overflow [PATCH]

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90078

--- Comment #9 from bin cheng <amker at gcc dot gnu.org> ---
Author: amker
Date: Tue Apr 23 04:07:46 2019
New Revision: 270500

URL: https://gcc.gnu.org/viewcvs?rev=270500&root=gcc&view=rev
Log:
        PR tree-optimization/90078
        * tree-ssa-loop-ivopts.c (comp_cost::operator +,-,+=,-+,/=,*=): Add
        checks for infinite_cost overflow.

        gcc/testsuite
        * gcc/testsuite/g++.dg/tree-ssa/pr90078.C: New test.

        Also fix typo in ChangeLog entry for revision 270499.

Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/pr90078.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-loop-ivopts.c