File: Deadlock.test

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// REQUIRES: swift

// RUN: %lldb --repl < %s | FileCheck %s

// From https://bugs.swift.org/browse/SR-7114
// This sequence was deadlocking.

let a = 9007199254740991.0
// CHECK: a: Double = 9007199254740991
(a * a - a * a).squareRoot()
// CHECK: (Double) = {
// CHECK-NEXT:  _value = 0
// CHECK-NEXT: }
(a * a).addingProduct(-a, a).squareRoot()
// CHECK: (Double) = {
// CHECK-NEXT:  _value = NaN
// CHECK-NEXT: }