[Bug tree-optimization/65709] [5 Regression] Bad code for LZ4 decompression with -O3 on x86_64

[e...@coeus-group.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65709

--- Comment #1 from Evan Nemerson <e...@coeus-group.com> ---
Created attachment 35267
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35267&action=edit
preprocessed test case