[llvm-commits] [llvm] r46263 - /llvm/trunk/lib/CodeGen/StrongPHIElimination.cpp

[Owen Anderson]

Author: resistor
Date: Tue Jan 22 17:58:54 2008
New Revision: 46263

URL: http://llvm.org/viewvc/llvm-project?rev=46263&view=rev
Log:
Fix an iterator invalidation issue.

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

Modified: llvm/trunk/lib/CodeGen/StrongPHIElimination.cpp
URL: 
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/StrongPHIElimination.cpp?rev=46263&r1=46262&r2=46263&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/StrongPHIElimination.cpp (original)
+++ llvm/trunk/lib/CodeGen/StrongPHIElimination.cpp Tue Jan 22 17:58:54 2008
@@ -751,11 +751,17 @@
   // FIXME: Insert last-minute copies
   
   // Remove PHIs
-  for (MachineFunction::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I)
+  std::vector<MachineInstr*> phis;
+  for (MachineFunction::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) {
     for (MachineBasicBlock::iterator BI = I->begin(), BE = I->end();
          BI != BE; ++BI)
       if (BI->getOpcode() == TargetInstrInfo::PHI)
-        BI->eraseFromParent();
+        phis.push_back(BI);
+  }
+  
+  for (std::vector<MachineInstr*>::iterator I = phis.begin(), E = phis.end();
+       I != E; ++I)
+    (*I)->eraseFromParent();
   
   return false;
 }


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