[llvm-commits] [llvm] r91945 - /llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp

[Jakob Stoklund Olesen]

Author: stoklund
Date: Tue Dec 22 17:54:54 2009
New Revision: 91945

URL: http://llvm.org/viewvc/llvm-project?rev=91945&view=rev
Log:
Add coalescer asserts.

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

Modified: llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp?rev=91945&r1=91944&r2=91945&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp (original)
+++ llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp Tue Dec 22 17:54:54 2009
@@ -2246,8 +2246,9 @@
         continue;
 
       // Figure out the value # from the RHS.
-      LHSValsDefinedFromRHS[VNI]=
-        RHS.getLiveRangeContaining(VNI->def.getPrevSlot())->valno;
+      LiveRange *lr = RHS.getLiveRangeContaining(VNI->def.getPrevSlot());
+      assert(lr && "Cannot find live range");
+      LHSValsDefinedFromRHS[VNI] = lr->valno;
     }
 
     // Loop over the value numbers of the RHS, seeing if any are defined from
@@ -2264,8 +2265,9 @@
         continue;
 
       // Figure out the value # from the LHS.
-      RHSValsDefinedFromLHS[VNI]=
-        LHS.getLiveRangeContaining(VNI->def.getPrevSlot())->valno;
+      LiveRange *lr = LHS.getLiveRangeContaining(VNI->def.getPrevSlot());
+      assert(lr && "Cannot find live range");
+      RHSValsDefinedFromLHS[VNI] = lr->valno;
     }
 
     LHSValNoAssignments.resize(LHS.getNumValNums(), -1);