[llvm-commits] [llvm] r109468 - /llvm/trunk/lib/CodeGen/CriticalAntiDepBreaker.cpp

[Dan Gohman]

Author: djg
Date: Mon Jul 26 18:40:24 2010
New Revision: 109468

URL: http://llvm.org/viewvc/llvm-project?rev=109468&view=rev
Log:
Fix a use-after-free.

Modified:
    llvm/trunk/lib/CodeGen/CriticalAntiDepBreaker.cpp

Modified: llvm/trunk/lib/CodeGen/CriticalAntiDepBreaker.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/CriticalAntiDepBreaker.cpp?rev=109468&r1=109467&r2=109468&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/CriticalAntiDepBreaker.cpp (original)
+++ llvm/trunk/lib/CodeGen/CriticalAntiDepBreaker.cpp Mon Jul 26 18:40:24 2010
@@ -41,8 +41,6 @@
 }
 
 void CriticalAntiDepBreaker::StartBlock(MachineBasicBlock *BB) {
-  Classes.clear();
-
   const unsigned BBSize = BB->size();
   for (unsigned i = 0, e = TRI->getNumRegs(); i != e; ++i) {
     // Clear out the register class data.