[PATCH] D21040: [PM] Preserve GlobalsAA for SROA

[Davide Italiano via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL272009: [PM] Preserve GlobalsAA for SROA. (authored by davide).

Changed prior to commit:
  http://reviews.llvm.org/D21040?vs=59773&id=59878#toc

Repository:
  rL LLVM

http://reviews.llvm.org/D21040

Files:
  llvm/trunk/lib/Transforms/Scalar/SROA.cpp

Index: llvm/trunk/lib/Transforms/Scalar/SROA.cpp
===================================================================
--- llvm/trunk/lib/Transforms/Scalar/SROA.cpp
+++ llvm/trunk/lib/Transforms/Scalar/SROA.cpp
@@ -4232,9 +4232,14 @@
     PostPromotionWorklist.clear();
   } while (!Worklist.empty());
 
+  if (!Changed)
+    return PreservedAnalyses::all();
+
   // FIXME: Even when promoting allocas we should preserve some abstract set of
   // CFG-specific analyses.
-  return Changed ? PreservedAnalyses::none() : PreservedAnalyses::all();
+  PreservedAnalyses PA;
+  PA.preserve<GlobalsAA>();
+  return PA;
 }
 
 PreservedAnalyses SROA::run(Function &F, AnalysisManager<Function> &AM) {


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