[PATCH] D152552: [CodeGenPrepare] Implement releaseMemory

[Sven van Haastregt via Phabricator via llvm-commits]

svenvh created this revision.
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Release BlockFrequencyInfo and BranchProbabilityInfo results
immediately afterwards, instead of holding onto the memory until the
next `CodeGenPrepare::runOnFunction` call.

Co-authored-by: Erik Hogeman <erik.hogeman at arm.com>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D152552

Files:
  llvm/lib/CodeGen/CodeGenPrepare.cpp


Index: llvm/lib/CodeGen/CodeGenPrepare.cpp
===================================================================
--- llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -377,6 +377,11 @@
 
   bool runOnFunction(Function &F) override;
 
+  void releaseMemory() override {
+    BPI.reset();
+    BFI.reset();
+  }
+
   StringRef getPassName() const override { return "CodeGen Prepare"; }
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {


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