https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67841
--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to H.J. Lu from comment #6) > ix86_expand_prologue in i386.c has > > /* The computation of the size of the re-aligned stack frame means > that we must allocate the size of the register save area before > performing the actual alignment. Otherwise we cannot guarantee > that there's enough storage above the realignment point. */ > > That is where unaligned SSE load/store in prologue come from. We can also use this code for interrupt handler.
