[llvm-commits] [llvm] r45614 - /llvm/trunk/lib/CodeGen/MachineSink.cpp

[Chris Lattner]

Author: lattner
Date: Fri Jan  4 19:39:17 2008
New Revision: 45614

URL: http://llvm.org/viewvc/llvm-project?rev=45614&view=rev
Log:
fix a common crash.

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

Modified: llvm/trunk/lib/CodeGen/MachineSink.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineSink.cpp?rev=45614&r1=45613&r2=45614&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/MachineSink.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineSink.cpp Fri Jan  4 19:39:17 2008
@@ -180,6 +180,10 @@
     }
   }
   
+  // If there are no outputs, it must have side-effects.
+  if (SuccToSinkTo == 0)
+    return false;
+  
   // FIXME: Check that the instr doesn't have side effects etc.
   
   DEBUG(cerr << "Sink instr " << *MI);