1 files changed, 109 insertions, 0 deletions
diff --git a/test/Unit/fixsfti_test.c b/test/Unit/fixsfti_test.c
new file mode 100644
index 000000000..a8c0d563b
--- /dev/null
+++ b/test/Unit/fixsfti_test.c
@@ -0,0 +1,109 @@
+//===-- fixsfti_test.c - Test __fixsfti -----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __fixsfti for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#if __x86_64
+
+#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 ti_int (no range checking performed)
+
+// seee eeee emmm mmmm mmmm mmmm mmmm mmmm
+
+ti_int __fixsfti(float a);
+
+int test__fixsfti(float a, ti_int expected)
+{
+    ti_int x = __fixsfti(a);
+    if (x != expected)
+    {
+        twords xt;
+        xt.all = x;
+        twords expectedt;
+        expectedt.all = expected;
+        printf("error in __fixsfti(%A) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
+        a, xt.high, xt.low, expectedt.high, expectedt.low);
+    }
+    return x != expected;
+}
+
+char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
+char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
+char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
+
+#endif
+
+int main()
+{
+#if __x86_64
+    if (test__fixsfti(0.0F, 0))
+        return 1;
+
+    if (test__fixsfti(0.5F, 0))
+        return 1;
+    if (test__fixsfti(0.99F, 0))
+        return 1;
+    if (test__fixsfti(1.0F, 1))
+        return 1;
+    if (test__fixsfti(1.5F, 1))
+        return 1;
+    if (test__fixsfti(1.99F, 1))
+        return 1;
+    if (test__fixsfti(2.0F, 2))
+        return 1;
+    if (test__fixsfti(2.01F, 2))
+        return 1;
+    if (test__fixsfti(-0.5F, 0))
+        return 1;
+    if (test__fixsfti(-0.99F, 0))
+        return 1;
+    if (test__fixsfti(-1.0F, -1))
+        return 1;
+    if (test__fixsfti(-1.5F, -1))
+        return 1;
+    if (test__fixsfti(-1.99F, -1))
+        return 1;
+    if (test__fixsfti(-2.0F, -2))
+        return 1;
+    if (test__fixsfti(-2.01F, -2))
+        return 1;
+
+    if (test__fixsfti(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL))
+        return 1;
+    if (test__fixsfti(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL))
+        return 1;
+
+    if (test__fixsfti(-0x1.FFFFFEp+62F, make_ti(0xFFFFFFFFFFFFFFFFLL,
+                                                0x8000008000000000LL)))
+        return 1;
+    if (test__fixsfti(-0x1.FFFFFCp+62F, make_ti(0xFFFFFFFFFFFFFFFFLL,
+                                                0x8000010000000000LL)))
+        return 1;
+
+    if (test__fixsfti(0x1.FFFFFEp+126F, make_ti(0x7FFFFF8000000000LL, 0)))
+        return 1;
+    if (test__fixsfti(0x1.FFFFFCp+126F, make_ti(0x7FFFFF0000000000LL, 0)))
+        return 1;
+
+    if (test__fixsfti(-0x1.FFFFFEp+126F, make_ti(0x8000008000000000LL, 0)))
+        return 1;
+    if (test__fixsfti(-0x1.FFFFFCp+126F, make_ti(0x8000010000000000LL, 0)))
+        return 1;
+
+#endif
+   return 0;
+}