[Bug target/64003] valgrind complains about get_attr_length_nobnd in insn-attrtab.c from i386.md

[enkovich.gnu at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64003

--- Comment #22 from Ilya Enkovich <enkovich.gnu at gmail dot com> ---
Created attachment 34195
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34195&action=edit
Proposed patch