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[Bug target/67317] [x86] Silly code generation for _addcarry_u32/_addcarry_u64
- From: "segher at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 25 Aug 2015 12:58:50 +0000
- Subject: [Bug target/67317] [x86] Silly code generation for _addcarry_u32/_addcarry_u64
- Auto-submitted: auto-generated
- References: <bug-67317-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67317
Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |segher at gcc dot gnu.org
--- Comment #3 from Segher Boessenkool <segher at gcc dot gnu.org> ---
These things would normally be taken care of by combine, but
combine of course does not know what the UNSPEC_ADD_CARRY's mean.
Does this need to be an unspec at all?