[llvm-commits] [llvm] r122645 - /llvm/trunk/lib/Transforms/Utils/SimplifyInstructions.cpp

[Duncan Sands]

Author: baldrick
Date: Fri Dec 31 10:17:54 2010
New Revision: 122645

URL: http://llvm.org/viewvc/llvm-project?rev=122645&view=rev
Log:
Zap dead instructions harder.

Modified:
    llvm/trunk/lib/Transforms/Utils/SimplifyInstructions.cpp

Modified: llvm/trunk/lib/Transforms/Utils/SimplifyInstructions.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/SimplifyInstructions.cpp?rev=122645&r1=122644&r2=122645&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/SimplifyInstructions.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/SimplifyInstructions.cpp Fri Dec 31 10:17:54 2010
@@ -83,13 +83,8 @@
 
       // Finally, run over the function zapping any dead instructions.
       for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
-        for (BasicBlock::iterator BI = BB->begin(), BE = BB->end(); BI != BE;) {
-          Instruction *I = BI++;
-          if (isInstructionTriviallyDead(I)) {
-            I->eraseFromParent();
-            Changed = true;
-          }
-        }
+        for (BasicBlock::iterator BI = BB->begin(), BE = BB->end(); BI != BE;)
+          Changed |= RecursivelyDeleteTriviallyDeadInstructions(BI++);
 
       return Changed;
     }