[Bug tree-optimization/90662] strlen of a string in a vla plus offset not folded

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90662

--- Comment #6 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Fri Jun 14 02:07:02 2019
New Revision: 272281

URL: https://gcc.gnu.org/viewcvs?rev=272281&root=gcc&view=rev
Log:
PR tree-optimization/90662 - strlen of a string in a vla plus offset not folded

gcc/ChangeLog:

        PR tree-optimization/90662
        * tree-ssa-strlen.c (get_stridx): Convert fold_build2 operands
        to the same type.

gcc/testsuite/ChangeLog:

        PR tree-optimization/90662
        * gcc.dg/pr90866-2.c: New test.
        * gcc.dg/pr90866.c: Ditto.


Added:
    trunk/gcc/testsuite/gcc.dg/pr90866-2.c
    trunk/gcc/testsuite/gcc.dg/pr90866.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-strlen.c