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 5 float sqrtf(float x); foo(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