1 files changed, 11 insertions, 0 deletions
diff --git a/test/FrontendC/2005-07-20-SqrtNoErrno.c b/test/FrontendC/2005-07-20-SqrtNoErrno.c
new file mode 100644
index 0000000..a321a38
--- /dev/null
+++ b/test/FrontendC/2005-07-20-SqrtNoErrno.c
@@ -0,0 +1,11 @@
+// RUN: %llvmgcc %s -S -o - -fno-math-errno | FileCheck %s
+// llvm.sqrt has undefined behavior on negative inputs, so it is
+// inappropriate to translate C/C++ sqrt to this.
+#include <math.h>
+
+float foo(float X) {
+// CHECK: foo
+// CHECK: sqrtf(float %1) nounwind readonly
+  // Check that this is marked readonly when errno is ignored.
+  return sqrtf(X);
+}