https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90020
--- Comment #1 from eggert at cs dot ucla.edu --- Created attachment 46107 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46107&action=edit gcc -O2 -Os compiled output for x86-64 The attached x.s file shows the incorrect generated code, compiled with gcc -O2 -Os.