[PATCH] D109114: [GlobalDCE] In VFE, replace the whole 'sub' expression of unused relative-pointer-based vtable slots

[Florian Hahn via Phabricator via llvm-commits]

fhahn added inline comments.


================
Comment at: llvm/lib/Analysis/TypeMetadataUtils.cpp:206
+        for (auto *PtrToIntUser : PtrExpr->users()) {
+          if (auto *SubExpr = dyn_cast<ConstantExpr>(PtrExpr->user_back())) {
+            if (SubExpr->getOpcode() == Instruction::Sub) {
----------------
oh and just to double check, the assert was removed intentionally?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D109114/new/

https://reviews.llvm.org/D109114