Disable each MachineFunctionPass for 'optnone' functions, unless that

pass normally runs at optimization level None, or is part of the
register allocation pipeline.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205228 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/StackColoring.cpp

@@ -640,6 +640,9 @@ void StackColoring::expungeSlotMap(DenseMap<int, int> &SlotRemap,
 }
 
 bool StackColoring::runOnMachineFunction(MachineFunction &Func) {
+  if (skipOptnoneFunction(*Func.getFunction()))
+    return false;
+
   DEBUG(dbgs() << "********** Stack Coloring **********\n"
                << "********** Function: "
                << ((const Value*)Func.getFunction())->getName() << '\n');