Initial import of compiler-rt.
-
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@74292 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Unit/fixxfti_test.c b/test/Unit/fixxfti_test.c
new file mode 100644
index 0000000..86fdcc0
--- /dev/null
+++ b/test/Unit/fixxfti_test.c
@@ -0,0 +1,144 @@
+//===-- fixxfti_test.c - Test __fixxfti -----------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __fixxfti 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: long double is an intel 80 bit floating point type padded with 6 bytes
+// su_int is a 32 bit integral type
+// value in long double is representable in ti_int (no range checking performed)
+
+// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
+// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
+
+ti_int __fixxfti(long double a);
+
+int test__fixxfti(long double a, ti_int expected)
+{
+ ti_int x = __fixxfti(a);
+ if (x != expected)
+ {
+ utwords xt;
+ xt.all = x;
+ utwords expectedt;
+ expectedt.all = expected;
+ printf("error in __fixxfti(%LA) = 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(long double)*CHAR_BIT == 128] = {0};
+
+#endif
+
+int main()
+{
+#if __x86_64
+ if (test__fixxfti(0.0, 0))
+ return 1;
+
+ if (test__fixxfti(0.5, 0))
+ return 1;
+ if (test__fixxfti(0.99, 0))
+ return 1;
+ if (test__fixxfti(1.0, 1))
+ return 1;
+ if (test__fixxfti(1.5, 1))
+ return 1;
+ if (test__fixxfti(1.99, 1))
+ return 1;
+ if (test__fixxfti(2.0, 2))
+ return 1;
+ if (test__fixxfti(2.01, 2))
+ return 1;
+ if (test__fixxfti(-0.5, 0))
+ return 1;
+ if (test__fixxfti(-0.99, 0))
+ return 1;
+ if (test__fixxfti(-1.0, -1))
+ return 1;
+ if (test__fixxfti(-1.5, -1))
+ return 1;
+ if (test__fixxfti(-1.99, -1))
+ return 1;
+ if (test__fixxfti(-2.0, -2))
+ return 1;
+ if (test__fixxfti(-2.01, -2))
+ return 1;
+
+ if (test__fixxfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
+ return 1;
+ if (test__fixxfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
+ return 1;
+
+ if (test__fixxfti(-0x1.FFFFFEp+62, make_ti(0xFFFFFFFFFFFFFFFFLL,
+ 0x8000008000000000LL)))
+ return 1;
+ if (test__fixxfti(-0x1.FFFFFCp+62, make_ti(0xFFFFFFFFFFFFFFFFLL,
+ 0x8000010000000000LL)))
+ return 1;
+
+ if (test__fixxfti(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
+ return 1;
+ if (test__fixxfti(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
+ return 1;
+
+ if (test__fixxfti(-0x1.FFFFFFFFFFFFFp+62, make_ti(0xFFFFFFFFFFFFFFFFLL,
+ 0x8000000000000400LL)))
+ return 1;
+ if (test__fixxfti(-0x1.FFFFFFFFFFFFEp+62, make_ti(0xFFFFFFFFFFFFFFFFLL,
+ 0x8000000000000800LL)))
+ return 1;
+
+ if (test__fixxfti(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
+ return 1;
+ if (test__fixxfti(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
+ return 1;
+
+ if (test__fixxfti(-0x1.0000000000000000p+63L, make_ti(0xFFFFFFFFFFFFFFFFLL,
+ 0x8000000000000000LL)))
+ return 1;
+ if (test__fixxfti(-0x1.FFFFFFFFFFFFFFFCp+62L, make_ti(0xFFFFFFFFFFFFFFFFLL,
+ 0x8000000000000001LL)))
+ return 1;
+ if (test__fixxfti(-0x1.FFFFFFFFFFFFFFF8p+62L, make_ti(0xFFFFFFFFFFFFFFFFLL,
+ 0x8000000000000002LL)))
+ return 1;
+
+ if (test__fixxfti(0x1.FFFFFFFFFFFFFFFEp+126L, make_ti(0x7FFFFFFFFFFFFFFFLL,
+ 0x8000000000000000LL)))
+ return 1;
+ if (test__fixxfti(0x1.FFFFFFFFFFFFFFFCp+126L, make_ti(0x7FFFFFFFFFFFFFFFLL,
+ 0x0000000000000000LL)))
+
+ return 1;
+
+ if (test__fixxfti(-0x1.0000000000000000p+127L, make_ti(0x8000000000000000LL,
+ 0x0000000000000000LL)))
+ return 1;
+ if (test__fixxfti(-0x1.FFFFFFFFFFFFFFFEp+126L, make_ti(0x8000000000000000LL,
+ 0x8000000000000000LL)))
+ return 1;
+ if (test__fixxfti(-0x1.FFFFFFFFFFFFFFFCp+126L, make_ti(0x8000000000000001LL,
+ 0x0000000000000000LL)))
+ return 1;
+#endif
+ return 0;
+}