Decrease usage of use_size()


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9135 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index a3607be..af33e4b 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -88,7 +88,7 @@
     static bool isInlinableInst(const Instruction &I) {
       // Must be an expression, must be used exactly once.  If it is dead, we
       // emit it inline where it would go.
-      if (I.getType() == Type::VoidTy || I.use_size() != 1 ||
+      if (I.getType() == Type::VoidTy || !I.hasOneUse() ||
           isa<TerminatorInst>(I) || isa<CallInst>(I) || isa<PHINode>(I) || 
           isa<LoadInst>(I) || isa<VarArgInst>(I))
         // Don't inline a load across a store or other bad things!