swift-mirror/validation-test/compiler_crashers_2_fixed/sr-4571.swift

// RUN: %target-swift-frontend -emit-ir %s

func add(_ a: Int, _ b: Int) throws -> Int {
    return a + b
}

func add(_ a: Int, _ b: Int) -> Float {
    return Float(a + b)
}

func useAdd() {
    guard let c: Float = try? add(3, 4) else {
        return
    }
    print(c)
}