Initial import of compiler-rt.

 -


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@74292 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 84 insertions, 0 deletions

diff --git a/test/Unit/fixsfdi_test.c b/test/Unit/fixsfdi_test.c
new file mode 100644
index 000000000..434e1a9e0
--- /dev/null
+++ b/test/Unit/fixsfdi_test.c
@@ -0,0 +1,84 @@
+//===-- fixsfdi_test.c - Test __fixsfdi -----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __fixsfdi for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+#include <stdio.h>
+
+// Returns: convert a to a signed long long, rounding toward zero.
+
+// Assumption: float is a IEEE 32 bit floating point type 
+//             su_int is a 32 bit integral type
+//             value in float is representable in di_int (no range checking performed)
+
+// seee eeee emmm mmmm mmmm mmmm mmmm mmmm
+
+di_int __fixsfdi(float a);
+
+int test__fixsfdi(float a, di_int expected)
+{
+    di_int x = __fixsfdi(a);
+    if (x != expected)
+        printf("error in __fixsfdi(%A) = %llX, expected %llX\n", a, x, expected);
+    return x != expected;
+}
+
+char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
+char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
+char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
+
+int main()
+{
+    if (test__fixsfdi(0.0F, 0))
+        return 1;
+
+    if (test__fixsfdi(0.5F, 0))
+        return 1;
+    if (test__fixsfdi(0.99F, 0))
+        return 1;
+    if (test__fixsfdi(1.0F, 1))
+        return 1;
+    if (test__fixsfdi(1.5F, 1))
+        return 1;
+    if (test__fixsfdi(1.99F, 1))
+        return 1;
+    if (test__fixsfdi(2.0F, 2))
+        return 1;
+    if (test__fixsfdi(2.01F, 2))
+        return 1;
+    if (test__fixsfdi(-0.5F, 0))
+        return 1;
+    if (test__fixsfdi(-0.99F, 0))
+        return 1;
+    if (test__fixsfdi(-1.0F, -1))
+        return 1;
+    if (test__fixsfdi(-1.5F, -1))
+        return 1;
+    if (test__fixsfdi(-1.99F, -1))
+        return 1;
+    if (test__fixsfdi(-2.0F, -2))
+        return 1;
+    if (test__fixsfdi(-2.01F, -2))
+        return 1;
+
+    if (test__fixsfdi(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL))
+        return 1;
+    if (test__fixsfdi(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL))
+        return 1;
+
+    if (test__fixsfdi(-0x1.FFFFFEp+62F, 0x8000008000000000LL))
+        return 1;
+    if (test__fixsfdi(-0x1.FFFFFCp+62F, 0x8000010000000000LL))
+        return 1;
+
+   return 0;
+}