[Bug rtl-optimization/92107] GCC's insn attribute arithmetic does not follow C rules

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92107

--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Tue Oct 15 23:47:47 2019
New Revision: 277023

URL: https://gcc.gnu.org/viewcvs?rev=277023&root=gcc&view=rev
Log:
genattrtab: Parenthesize expressions correctly (PR92107)

As PR92107 shows, genattrtab doesn't parenthesize expressions correctly
(or at all, even).  This fixes it.


        PR rtl-optimization/92107
        * genattrtab.c (write_attr_value) <do_operator>: Parenthesize the
        expression written.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/genattrtab.c