[PATCH] D125130: [CodeGen] Clarify the semantics of ADDCARRY/SUBCARRY
Craig Topper via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon May 9 09:25:52 PDT 2022
craig.topper added inline comments.
================
Comment at: llvm/include/llvm/CodeGen/ISDOpcodes.h:293
+ /// semantcis of these opcodes by inverting the incoming carry/borrow, feeding
+ /// it to the sub/add hardware instruction, and then inverting the outgoing
+ /// carry/borrow.
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Should this be "add/sub" to match the order of "carry/borrow" used?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D125130/new/
https://reviews.llvm.org/D125130
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