[PATCH] D60460: [SelectionDAG] Use KnownBits::computeForAddSub in SelectionDAG::computeKnownBits

[Bjorn Pettersson via Phabricator via llvm-commits]

bjope marked an inline comment as done.
bjope added inline comments.


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Comment at: llvm/test/CodeGen/X86/x32-va_start.ll:62
+
+; Nowadays we can do value tracking through CopyFromReg, so we know that
+; [[COUNT]] is $8 here (we actually get "cmpl $40, $8" when catching [[COUNT]]
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The patch with CopyFromReg has been reverted. So this diff will go away after rebasing to trunk.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D60460/new/

https://reviews.llvm.org/D60460