[llvm-dev] Deprecating ADDC/ADDE/SUBC/SUBE

Krzysztof Parzyszek via llvm-dev llvm-dev at lists.llvm.org
Mon Jun 4 08:05:45 PDT 2018

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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