[llvm-dev] Deprecating ADDC/ADDE/SUBC/SUBE
Friedman, Eli via llvm-dev
llvm-dev at lists.llvm.org
Mon Jun 4 10:37:40 PDT 2018
On 6/4/2018 8:05 AM, Krzysztof Parzyszek wrote:
> On 5/30/2018 2:10 PM, Friedman, Eli wrote:
>> If the expansion of UADDO would be useful, patch welcome, I guess.
>> (It isn't useful on architectures like ARM; we have to special-case
>> UADDO anyway to generate "adds" instead of "adcs".)
> Wouldn't that be the same as special-casing ADDCARRY with zero carry-in?
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