https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61588
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61588
--- Comment #1 from af300wsm at gmail dot com --- Created attachment 32989 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=32989&action=edit O2 settings for 4.4.7