[PATCH] D85837: [GlobalOpt] Fix incorrect Modified status

Florian Hahn via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Sep 1 02:57:51 PDT 2020


fhahn added inline comments.


================
Comment at: llvm/lib/Transforms/IPO/GlobalOpt.cpp:2027
+    if (GS.Ordering == AtomicOrdering::NotAtomic) {
       GV->setConstant(true);
+      Changed = true;
----------------
Can `GV` here be already a constant? If so, we should only set Changed if `!GV->isConstant()`. Or if it is always non-constant to start with, perhaps add an assert to make sure?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D85837/new/

https://reviews.llvm.org/D85837



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