[llvm-commits] [llvm] r60189 - /llvm/trunk/lib/Transforms/Scalar/DCE.cpp

[Chris Lattner]

Author: lattner
Date: Thu Nov 27 16:46:09 2008
New Revision: 60189

URL: http://llvm.org/viewvc/llvm-project?rev=60189&view=rev
Log:
simplify this logic.

Modified:
    llvm/trunk/lib/Transforms/Scalar/DCE.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/DCE.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/DCE.cpp?rev=60189&r1=60188&r2=60189&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/DCE.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/DCE.cpp Thu Nov 27 16:46:09 2008
@@ -39,12 +39,14 @@
     DeadInstElimination() : BasicBlockPass(intptr_t(&ID)) {}
     virtual bool runOnBasicBlock(BasicBlock &BB) {
       bool Changed = false;
-      for (BasicBlock::iterator DI = BB.begin(); DI != BB.end(); )
-        if (dceInstruction(DI)) {
+      for (BasicBlock::iterator DI = BB.begin(); DI != BB.end(); ) {
+        Instruction *Inst = DI++;
+        if (isInstructionTriviallyDead(Inst)) {
+          Inst->eraseFromParent();
           Changed = true;
           ++DIEEliminated;
-        } else
-          ++DI;
+        }
+      }
       return Changed;
     }