[Bug tree-optimization/92401] [10 Regression] ICE in fold_ternary_loc, at fold-const.c:11698

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92401

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Nov  9 17:09:44 2019
New Revision: 278004

URL: https://gcc.gnu.org/viewcvs?rev=278004&root=gcc&view=rev
Log:
        PR tree-optimization/92401
        * gimple-match-head.c (gimple_resimplify1): Call const_unop only
        if res_op->code is an expression with code length 1.
        * gimple-match-head.c (gimple_resimplify2): Call const_binop only
        if res_op->code is an expression with code length 2.
        * gimple-match-head.c (gimple_resimplify3): Call fold_ternary only
        if res_op->code is an expression with code length 3.

        * g++.dg/opt/pr92401.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/opt/pr92401.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-match-head.c
    trunk/gcc/testsuite/ChangeLog