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-rw-r--r--test/builtins/Unit/arm/aeabi_drsub_test.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/test/builtins/Unit/arm/aeabi_drsub_test.c b/test/builtins/Unit/arm/aeabi_drsub_test.c
new file mode 100644
index 000000000000..7d867ef2c95a
--- /dev/null
+++ b/test/builtins/Unit/arm/aeabi_drsub_test.c
@@ -0,0 +1,47 @@
+//===-- aeabi_drsub.c - Test __aeabi_drsub --------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __aeabi_drsub for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+
+#if __arm__
+extern __attribute__((pcs("aapcs"))) double __aeabi_drsub(double a, double b);
+
+int test__aeabi_drsub(double a, double b, double expected)
+{
+ double actual = __aeabi_drsub(a, b);
+ if (actual != expected)
+ printf("error in __aeabi_drsub(%f, %f) = %f, expected %f\n",
+ a, b, actual, expected);
+ return actual != expected;
+}
+#endif
+
+int main()
+{
+#if __arm__
+ if (test__aeabi_drsub(1.0, 1.0, 0.0))
+ return 1;
+ if (test__aeabi_drsub(1234.567, 765.4321, -469.134900))
+ return 1;
+ if (test__aeabi_drsub(-123.0, -678.0, -555.0))
+ return 1;
+ if (test__aeabi_drsub(0.0, -0.0, 0.0))
+ return 1;
+#else
+ printf("skipped\n");
+#endif
+ return 0;
+}