1 files changed, 92 insertions, 0 deletions
diff --git a/test/builtins/Unit/arm/aeabi_cdcmple_test.c b/test/builtins/Unit/arm/aeabi_cdcmple_test.c
new file mode 100644
index 000000000000..afc701493694
--- /dev/null
+++ b/test/builtins/Unit/arm/aeabi_cdcmple_test.c
@@ -0,0 +1,92 @@
+//===-- aeabi_cdcmple.c - Test __aeabi_cdcmple and __aeabi_cdrcmple -------===//
+//
+//                     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_cdcmple and __aeabi_cdrcmple for the compiler_rt
+// library.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include "call_apsr.h"
+
+#if __arm__
+
+extern __attribute__((pcs("aapcs"))) void __aeabi_cdcmple(double a, double b);
+extern __attribute__((pcs("aapcs"))) void __aeabi_cdrcmple(double a, double b);
+
+int test__aeabi_cdcmple(double a, double b, int expected)
+{
+    int32_t cpsr_value = call_apsr_d(a, b, __aeabi_cdcmple);
+    int32_t r_cpsr_value = call_apsr_d(b, a, __aeabi_cdrcmple);
+
+    if (cpsr_value != r_cpsr_value) {
+        printf("error: __aeabi_cdcmple(%f, %f) != __aeabi_cdrcmple(%f, %f)\n", a, b, b, a);
+        return 1;
+    }
+
+    int expected_z, expected_c;
+    if (expected == -1) {
+        expected_z = 0;
+        expected_c = 0;
+    } else if (expected == 0) {
+        expected_z = 1;
+        expected_c = 1;
+    } else {
+        // a or b is NaN, or a > b
+        expected_z = 0;
+        expected_c = 1;
+    }
+
+    union cpsr cpsr = { .value = cpsr_value };
+    if (expected_z != cpsr.flags.z || expected_c != cpsr.flags.c) {
+        printf("error in __aeabi_cdcmple(%f, %f) => (Z = %d, C = %d), expected (Z = %d, C = %d)\n",
+               a, b, cpsr.flags.z, cpsr.flags.c, expected_z, expected_c);
+        return 1;
+    }
+
+    cpsr.value = r_cpsr_value;
+    if (expected_z != cpsr.flags.z || expected_c != cpsr.flags.c) {
+        printf("error in __aeabi_cdrcmple(%f, %f) => (Z = %d, C = %d), expected (Z = %d, C = %d)\n",
+               a, b, cpsr.flags.z, cpsr.flags.c, expected_z, expected_c);
+        return 1;
+    }
+    return 0;
+}
+#endif
+
+int main()
+{
+#if __arm__
+    if (test__aeabi_cdcmple(1.0, 1.0, 0))
+        return 1;
+    if (test__aeabi_cdcmple(1234.567, 765.4321, 1))
+        return 1;
+    if (test__aeabi_cdcmple(765.4321, 1234.567, -1))
+        return 1;
+    if (test__aeabi_cdcmple(-123.0, -678.0, 1))
+        return 1;
+    if (test__aeabi_cdcmple(-678.0, -123.0, -1))
+        return 1;
+    if (test__aeabi_cdcmple(0.0, -0.0, 0))
+        return 1;
+    if (test__aeabi_cdcmple(1.0, NAN, 1))
+        return 1;
+    if (test__aeabi_cdcmple(NAN, 1.0, 1))
+        return 1;
+    if (test__aeabi_cdcmple(NAN, NAN, 1))
+        return 1;
+#else
+    printf("skipped\n");
+#endif
+    return 0;
+}