https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117111
Jeffrey A. Law <law at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |law at gcc dot gnu.org
--- Comment #5 from Jeffrey A. Law <law at gcc dot gnu.org> ---
reorg splits insns because doing so gives more opportunities to fill delay
slot, particularly when the asm-output step would generate multiple
instructions for a single insn.
My recollection (and it's been decades since I've really worked on reorg) is
that validity is checked dynamically when we try to fill the slot with a
particular insn. In theory the insns created by splitting should be no
different than insns that were in the insn chain prior to reorg.
