add comparison functions for ARM
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@81597 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Unit/ltdf2vfp_test.c b/test/Unit/ltdf2vfp_test.c
new file mode 100644
index 0000000..615785e
--- /dev/null
+++ b/test/Unit/ltdf2vfp_test.c
@@ -0,0 +1,49 @@
+//===-- ltdf2vfp_test.c - Test __ltdf2vfp ---------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __ltdf2vfp for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <math.h>
+
+
+extern int __ltdf2vfp(double a, double b);
+
+#if __arm__
+int test__ltdf2vfp(double a, double b)
+{
+ int actual = __ltdf2vfp(a, b);
+ int expected = (a < b) ? 1 : 0;
+ if (actual != expected)
+ printf("error in __ltdf2vfp(%f, %f) = %d, expected %d\n",
+ a, b, actual, expected);
+ return actual != expected;
+}
+#endif
+
+int main()
+{
+#if __arm__
+ if (test__ltdf2vfp(0.0, 0.0))
+ return 1;
+ if (test__ltdf2vfp(1.0, 1.0))
+ return 1;
+ if (test__ltdf2vfp(-1.0, -1.0))
+ return 1;
+ if (test__ltdf2vfp(HUGE_VAL, 1.0))
+ return 1;
+ if (test__ltdf2vfp(1.0, HUGE_VAL))
+ return 1;
+#endif
+ return 0;
+}