[Bug target/69140] [5/6 regression] Stack alignment + O1 breaks on x86_64 [introduced by r230176 ]

[bucaneer at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69140

--- Comment #3 from Justas L <bucaneer at gmail dot com> ---
Created attachment 37222
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37222&action=edit
testcase2

The previous testcase fails only with -O2 or higher; this one fails with -O1:

gcc -c -O1 -mincoming-stack-boundary=3 chain.i