[PATCH] D57302: [DAGCombine] More diamond carry pattern optimization.
Amaury SECHET via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sat May 4 04:27:32 PDT 2019
deadalnix updated this revision to Diff 198135.
deadalnix added a comment.
Rebase and ping.
While I understand one may have doubts about this patch, it is absolutely key to push the quality of the canonicalisation of large interegers further. With a dual track for carry propapagtion, it is not possible to to do any better than we do now.
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D57302/new/
https://reviews.llvm.org/D57302
Files:
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
test/CodeGen/X86/addcarry.ll
test/CodeGen/X86/subcarry.ll
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