[PATCH] D80707: [legacyPM] Do not compute preserved analysis if there's no local change

serge via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Jul 28 02:02:59 PDT 2020


This revision was automatically updated to reflect the committed changes.
Closed by commit rG3218c064d6d8: [legacyPM] Do not compute preserved analysis if there's no local change (authored by serge-sans-paille).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80707/new/

https://reviews.llvm.org/D80707

Files:
  llvm/lib/IR/LegacyPassManager.cpp


Index: llvm/lib/IR/LegacyPassManager.cpp
===================================================================
--- llvm/lib/IR/LegacyPassManager.cpp
+++ llvm/lib/IR/LegacyPassManager.cpp
@@ -1614,7 +1614,8 @@
     dumpUsedSet(FP);
 
     verifyPreservedAnalysis(FP);
-    removeNotPreservedAnalysis(FP);
+    if (LocalChanged)
+      removeNotPreservedAnalysis(FP);
     recordAvailableAnalysis(FP);
     removeDeadPasses(FP, F.getName(), ON_FUNCTION_MSG);
   }
@@ -1723,7 +1724,8 @@
     dumpUsedSet(MP);
 
     verifyPreservedAnalysis(MP);
-    removeNotPreservedAnalysis(MP);
+    if (LocalChanged)
+      removeNotPreservedAnalysis(MP);
     recordAvailableAnalysis(MP);
     removeDeadPasses(MP, M.getModuleIdentifier(), ON_MODULE_MSG);
   }


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