xref: /aosp_15_r20/external/clang/test/CodeGen/2009-09-24-SqrtErrno.c (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li // RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -fmath-errno | FileCheck %s
2*67e74705SXin Li // llvm.sqrt has undefined behavior on negative inputs, so it is
3*67e74705SXin Li // inappropriate to translate C/C++ sqrt to this.
4*67e74705SXin Li 
5*67e74705SXin Li float sqrtf(float x);
foo(float X)6*67e74705SXin Li float foo(float X) {
7*67e74705SXin Li // CHECK: foo
8*67e74705SXin Li // CHECK-NOT: readonly
9*67e74705SXin Li // CHECK: call float @sqrtf
10*67e74705SXin Li   // Check that this is not marked readonly when errno is used.
11*67e74705SXin Li   return sqrtf(X);
12*67e74705SXin Li }
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