[Bug tree-optimization/79333] FRE/PRE do not allow folding to look at SSA defs during elimination

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79333

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Christophe Lyon <cl...@gcc.gnu.org>:

https://gcc.gnu.org/g:601191b2a48cb8f4657bb2fa2270a7fde9d52e9c

commit r12-617-g601191b2a48cb8f4657bb2fa2270a7fde9d52e9c
Author: Christophe Lyon <christophe.l...@linaro.org>
Date:   Fri May 7 15:52:35 2021 +0000

    tree-optimization/79333 - fold stmts following SSA edges in VN

    copysign is only available with c99_runtime, skip ssa-fre-94.c
    otherwise.

    2021-05-07  Christophe Lyon  <christophe.l...@linaro.org>

            PR tree-optimization/79333
            gcc/testsuite/
            * gcc.dg/tree-ssa/ssa-fre-94.c: Require c99_runtime.