https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103973
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Last reconfirmed| |2022-01-11
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Target| |x86_64-*-* i?86-*-*
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
We are lowering this to
return <retval> = TARGET_EXPR <D.8264, SAVE_EXPR <a> != SAVE_EXPR <b> ?
SAVE_EXPR <a> < SAVE_EXPR <b> ? less : SAVE_EXPR <b> < SAVE_EXPR <a> ? greater
: unordered : equivalent>>>;
I don't think we can elide the first ucomisd, but we should be able to CSE the
last (from the original quoted assembler), not sure if it ultimatively results
in better code though.
