unused2: use types used in blank stores
@@ -1041,7 +1041,8 @@ func (g *Graph) instructions(fn *ssa.Function) {
case *ssa.DebugRef:
// nothing to do
case *ssa.BlankStore:
- // nothing to do
+ // catch `_ = typedConst`
+ g.seeAndUse(instr.Val.Type(), fn, "blank store")
case *ssa.Phi:
// nothing to do
case *ssa.MakeMap:
