From 1d9aab8c9e44763b9c82c9c72fbe9f79646af7cb Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@apple.com>
Date: Tue, 26 Jul 2011 20:31:17 +0000
Subject: [PATCH] Migrate CodeGen/2009-09-24-SqrtErrno.c from test/FrontendC
 with changes to avoid header inclusions.

llvm-svn: 136128
---
 clang/test/CodeGen/2009-09-24-SqrtErrno.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 clang/test/CodeGen/2009-09-24-SqrtErrno.c

diff --git a/clang/test/CodeGen/2009-09-24-SqrtErrno.c b/clang/test/CodeGen/2009-09-24-SqrtErrno.c
new file mode 100644
index 000000000000..b4a04ff6b6ab
--- /dev/null
+++ b/clang/test/CodeGen/2009-09-24-SqrtErrno.c
@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 %s -emit-llvm -o - -fmath-errno | 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-NOT: readonly
+// CHECK: call float @sqrtf
+  // Check that this is not marked readonly when errno is used.
+  return sqrtf(X);
+}