[PATCH] D86031: NFC: [GVNHoist] Hoist loop invariant code and rename variables for readability

[Aditya Kumar via Phabricator via llvm-commits]

hiraditya created this revision.
hiraditya added a reviewer: fhahn.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.
hiraditya requested review of this revision.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D86031

Files:
  llvm/lib/Transforms/Scalar/GVNHoist.cpp


Index: llvm/lib/Transforms/Scalar/GVNHoist.cpp
===================================================================
--- llvm/lib/Transforms/Scalar/GVNHoist.cpp
+++ llvm/lib/Transforms/Scalar/GVNHoist.cpp
@@ -792,13 +792,14 @@
       }
       // Insert empty CHI node for this VN. This is used to factor out
       // basic blocks where the ANTIC can potentially change.
-      for (auto IDFB : IDFBlocks) {
+      CHIArg EmptyChi = {VN, nullptr, nullptr};
+      for (auto IDFBB : IDFBlocks) {
         for (unsigned i = 0; i < V.size(); ++i) {
-          CHIArg C = {VN, nullptr, nullptr};
-           // Ignore spurious PDFs.
-          if (DT->properlyDominates(IDFB, V[i]->getParent())) {
-            OutValue[IDFB].push_back(C);
-            LLVM_DEBUG(dbgs() << "\nInsertion a CHI for BB: " << IDFB->getName()
+          // Ignore spurious PDFs.
+          if (DT->properlyDominates(IDFBB, V[i]->getParent())) {
+            OutValue[IDFBB].push_back(EmptyChi);
+            LLVM_DEBUG(dbgs() << "\nInserting a CHI for BB: "
+                              << IDFBB->getName()
                               << ", for Insn: " << *V[i]);
           }
         }


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