1// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -fmath-errno | FileCheck %s 2// llvm.sqrt has undefined behavior on negative inputs, so it is 3// inappropriate to translate C/C++ sqrt to this. 4 5float sqrtf(float x); 6float foo(float X) { 7// CHECK: foo 8// CHECK-NOT: readonly 9// CHECK: call float @sqrtf 10 // Check that this is not marked readonly when errno is used. 11 return sqrtf(X); 12} 13