[Bug bootstrap/69123] [6 Regression] --with-build-config='bootstrap-O3 bootstrap-debug' miscompiled stage 2

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69123

--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 37226
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37226&action=edit
A testcase

./xgcc -B./ -S -O3 -g /tmp/x.ii -fno-rtti -fno-exceptions

never finishes.