[optnone] Skip pass Float2Int on optnone functions.

Added test Float2Int/float2int-optnone.ll to verify that pass Float2Int
is not run on optnone functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233183 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/Float2Int.cpp

@@ -511,6 +511,9 @@ void Float2Int::cleanup() {
 }
 
 bool Float2Int::runOnFunction(Function &F) {
+  if (skipOptnoneFunction(F))
+    return false;
+
   DEBUG(dbgs() << "F2I: Looking at function " << F.getName() << "\n");
   // Clear out all state.
   ECs = EquivalenceClasses<Instruction*>();