1 files changed, 10 insertions, 0 deletions
diff --git a/test/CodeGen/2005-07-20-SqrtNoErrno.c b/test/CodeGen/2005-07-20-SqrtNoErrno.c
new file mode 100644
index 000000000000..f40f61d27f31
--- /dev/null
+++ b/test/CodeGen/2005-07-20-SqrtNoErrno.c
@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
+// llvm.sqrt has undefined behavior on negative inputs, so it is
+// inappropriate to translate C/C++ sqrt to this.
+float sqrtf(float x);
+float foo(float X) {
+  // CHECK: foo
+  // CHECK: call float @sqrtf(float %
+  // Check that this is marked readonly when errno is ignored.
+  return sqrtf(X);
+}