[PATCH] D112293: [SCEV][NFC] Introduce API for mass forgetMemoizedResults query

[Max Kazantsev via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGa6096b7f9ed3: [SCEV][NFC] Introduce API for mass forgetMemoizedResults query (authored by mkazantsev).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D112293/new/

https://reviews.llvm.org/D112293

Files:
  llvm/include/llvm/Analysis/ScalarEvolution.h
  llvm/lib/Analysis/ScalarEvolution.cpp


Index: llvm/lib/Analysis/ScalarEvolution.cpp
===================================================================
--- llvm/lib/Analysis/ScalarEvolution.cpp
+++ llvm/lib/Analysis/ScalarEvolution.cpp
@@ -12746,8 +12746,12 @@
   return SCEVExprContains(S, [&](const SCEV *Expr) { return Expr == Op; });
 }
 
-void
-ScalarEvolution::forgetMemoizedResults(const SCEV *S) {
+void ScalarEvolution::forgetMemoizedResults(ArrayRef<const SCEV *> SCEVs) {
+  for (auto *S : SCEVs)
+    forgetMemoizedResultsImpl(S);
+}
+
+void ScalarEvolution::forgetMemoizedResultsImpl(const SCEV *S) {
   ValuesAtScopes.erase(S);
   LoopDispositions.erase(S);
   BlockDispositions.erase(S);
Index: llvm/include/llvm/Analysis/ScalarEvolution.h
===================================================================
--- llvm/include/llvm/Analysis/ScalarEvolution.h
+++ llvm/include/llvm/Analysis/ScalarEvolution.h
@@ -1888,8 +1888,11 @@
   bool splitBinaryAdd(const SCEV *Expr, const SCEV *&L, const SCEV *&R,
                       SCEV::NoWrapFlags &Flags);
 
-  /// Drop memoized information computed for S.
-  void forgetMemoizedResults(const SCEV *S);
+  /// Drop memoized information for all \p SCEVs.
+  void forgetMemoizedResults(ArrayRef<const SCEV *> SCEVs);
+
+  /// Helper for forgetMemoizedResults.
+  void forgetMemoizedResultsImpl(const SCEV *S);
 
   /// Return an existing SCEV for V if there is one, otherwise return nullptr.
   const SCEV *getExistingSCEV(Value *V);


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