Fix some -Asserts unused variable warnings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78447 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocPBQP.cpp b/lib/CodeGen/RegAllocPBQP.cpp
index 63c7d3d..e0aea98 100644
--- a/lib/CodeGen/RegAllocPBQP.cpp
+++ b/lib/CodeGen/RegAllocPBQP.cpp
@@ -682,6 +682,7 @@
 bool PBQPRegAlloc::mapPBQPToRegAlloc(const PBQP::Solution &solution) {
 
   static unsigned round = 0;
+  (void) round;
 
   // Set to true if we have any spills
   bool anotherRoundNeeded = false;