[DA][NewPM] Handle transitive dependencies in the new-pm version of DA

Summary:
The analysis result of DA caches pointers to AA, SCEV, and LI, but it
never checks for their invalidation. Fix that.

Reviewers: chandlerc, dmgreen, bogner

Reviewed By: dmgreen

Subscribers: hiraditya, bollu, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D56381

llvm-svn: 352986

1 files changed, 13 insertions, 0 deletions

diff --git a/llvm/lib/Analysis/DependenceAnalysis.cpp b/llvm/lib/Analysis/DependenceAnalysis.cpp
index 9b02df49ca1..8337b9b96ea 100644
--- a/llvm/lib/Analysis/DependenceAnalysis.cpp
+++ b/llvm/lib/Analysis/DependenceAnalysis.cpp
@@ -3368,6 +3368,19 @@ static void dumpSmallBitVector(SmallBitVector &BV) {
 }
 #endif
 
+bool DependenceInfo::invalidate(Function &F, const PreservedAnalyses &PA,
+                                FunctionAnalysisManager::Invalidator &Inv) {
+  // Check if the analysis itself has been invalidated.
+  auto PAC = PA.getChecker<DependenceAnalysis>();
+  if (!PAC.preserved() && !PAC.preservedSet<AllAnalysesOn<Function>>())
+    return true;
+
+  // Check transitive dependencies.
+  return Inv.invalidate<AAManager>(F, PA) ||
+         Inv.invalidate<ScalarEvolutionAnalysis>(F, PA) ||
+         Inv.invalidate<LoopAnalysis>(F, PA);
+}
+
 // depends -
 // Returns NULL if there is no dependence.
 // Otherwise, return a Dependence with as many details as possible.