From: Devang Patel <dpatel@apple.com>
Date: Thu, 28 Apr 2011 20:32:02 +0000 (+0000)
Subject: Remove DbgDeclare only if all uses are converted.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=81ad03c020d7c1f73a78ce41ca713f1e425efe3d;p=oota-llvm.git

Remove DbgDeclare only if all uses are converted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130431 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp
index 614e4114e9c..4bca2fc1fb9 100644
--- a/lib/Transforms/Utils/Local.cpp
+++ b/lib/Transforms/Utils/Local.cpp
@@ -838,14 +838,18 @@ bool llvm::LowerDbgDeclare(Function &F) {
          E = Dbgs.end(); I != E; ++I) {
     DbgDeclareInst *DDI = *I;
     if (AllocaInst *AI = dyn_cast_or_null<AllocaInst>(DDI->getAddress())) {
+      bool RemoveDDI = true;
       for (Value::use_iterator UI = AI->use_begin(), E = AI->use_end();
            UI != E; ++UI)
         if (StoreInst *SI = dyn_cast<StoreInst>(*UI))
           ConvertDebugDeclareToDebugValue(DDI, SI, DIB);
         else if (LoadInst *LI = dyn_cast<LoadInst>(*UI))
           ConvertDebugDeclareToDebugValue(DDI, LI, DIB);
+        else
+          RemoveDDI = false;
+      if (RemoveDDI)
+        DDI->eraseFromParent();
     }
-    DDI->eraseFromParent();
   }
   return true;
 }