Inline monomorphic calls.

Change-Id: If38171c2dc7d4a4378df5d050afc4fff4499c98f
diff --git a/compiler/optimizing/licm.cc b/compiler/optimizing/licm.cc
index c38bbe3..02befc0 100644
--- a/compiler/optimizing/licm.cc
+++ b/compiler/optimizing/licm.cc
@@ -121,6 +121,8 @@
           // phi in it.
           if (instruction->NeedsEnvironment()) {
             UpdateLoopPhisIn(instruction->GetEnvironment(), loop_info);
+          } else {
+            DCHECK(!instruction->HasEnvironment());
           }
           instruction->MoveBefore(pre_header->GetLastInstruction());
         } else if (instruction->CanThrow()) {