add comparison functions for ARM

llvm-svn: 81597

1 files changed, 42 insertions, 0 deletions

diff --git a/compiler-rt/test/Unit/bswapsi2_test.c b/compiler-rt/test/Unit/bswapsi2_test.c
new file mode 100644
index 00000000000..8ca4874a13c
--- /dev/null
+++ b/compiler-rt/test/Unit/bswapsi2_test.c
@@ -0,0 +1,42 @@
+//===-- bswapsi2_test.c - Test __bswapsi2 ---------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __bswapsi2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <math.h>
+
+
+extern uint32_t __bswapsi2(uint32_t);
+
+#if __arm__
+int test__bswapsi2(uint32_t a, uint32_t expected)
+{
+    uint32_t actual = __bswapsi2(a);
+    if (actual != expected)
+        printf("error in test__bswapsi2(0x%0X) = 0x%0X, expected 0x%0X\n",
+               a, actual, expected);
+    return actual != expected;
+}
+#endif
+
+int main()
+{
+#if __arm__
+    if (test__bswapsi2(0x12345678, 0x78563412))
+        return 1;
+    if (test__bswapsi2(0x00000001, 0x01000000))
+        return 1;
+#endif
+    return 0;
+}