Add support for IEEE754 quad precision comparison functions.

From GuanHong Liu.

Differential Revision: http://llvm-reviews.chandlerc.com/D2797


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@205312 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 65 insertions, 0 deletions

diff --git a/test/builtins/Unit/unordtf2_test.c b/test/builtins/Unit/unordtf2_test.c
new file mode 100644
index 000000000..114cd8cb3
--- /dev/null
+++ b/test/builtins/Unit/unordtf2_test.c
@@ -0,0 +1,65 @@
+//===------------ unordtf2_test.c - Test __unordtf2------------------------===//
+//
+//                     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 __unordtf2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdio.h>
+
+#if __LP64__ && __LDBL_MANT_DIG__ == 113
+
+#include "fp_test.h"
+
+int __unordtf2(long double a, long double b);
+
+int test__unordtf2(long double a, long double b, enum EXPECTED_RESULT expected)
+{
+    int x = __unordtf2(a, b);
+    int ret = compareResultCMP(x, expected);
+
+    if (ret){
+        printf("error in test__unordtf2(%.20Lf, %.20Lf) = %d, "
+               "expected %s\n", a, b, x, expectedStr(expected));
+    }
+    return ret;
+}
+
+char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
+
+#endif
+
+int main()
+{
+#if __LP64__ && __LDBL_MANT_DIG__ == 113
+    // NaN
+    if (test__unordtf2(makeQNaN128(),
+                       0x1.234567890abcdef1234567890abcp+3L,
+                       NEQUAL_0))
+        return 1;
+    // other
+    if (test__unordtf2(0x1.234567890abcdef1234567890abcp+3L,
+                       0x1.334567890abcdef1234567890abcp+3L,
+                       EQUAL_0))
+        return 1;
+    if (test__unordtf2(0x1.234567890abcdef1234567890abcp+3L,
+                       0x1.234567890abcdef1234567890abcp+3L,
+                       EQUAL_0))
+        return 1;
+    if (test__unordtf2(0x1.234567890abcdef1234567890abcp+3L,
+                       0x1.234567890abcdef1234567890abcp-3L,
+                       EQUAL_0))
+        return 1;
+
+#else
+    printf("skipped\n");
+
+#endif
+    return 0;
+}