1*b9829059Sjoerg //===-- fixsfdi_test.c - Test __fixsfdi -----------------------------------===//
2*b9829059Sjoerg //
3*b9829059Sjoerg // The LLVM Compiler Infrastructure
4*b9829059Sjoerg //
5*b9829059Sjoerg // This file is dual licensed under the MIT and the University of Illinois Open
6*b9829059Sjoerg // Source Licenses. See LICENSE.TXT for details.
7*b9829059Sjoerg //
8*b9829059Sjoerg //===----------------------------------------------------------------------===//
9*b9829059Sjoerg //
10*b9829059Sjoerg // This file tests __fixsfdi for the compiler_rt library.
11*b9829059Sjoerg //
12*b9829059Sjoerg //===----------------------------------------------------------------------===//
13*b9829059Sjoerg
14*b9829059Sjoerg #include "int_lib.h"
15*b9829059Sjoerg #include <stdio.h>
16*b9829059Sjoerg
17*b9829059Sjoerg // Returns: convert a to a signed long long, rounding toward zero.
18*b9829059Sjoerg
19*b9829059Sjoerg // Assumption: float is a IEEE 32 bit floating point type
20*b9829059Sjoerg // su_int is a 32 bit integral type
21*b9829059Sjoerg // value in float is representable in di_int (no range checking performed)
22*b9829059Sjoerg
23*b9829059Sjoerg // seee eeee emmm mmmm mmmm mmmm mmmm mmmm
24*b9829059Sjoerg
25*b9829059Sjoerg di_int __fixsfdi(float a);
26*b9829059Sjoerg
test__fixsfdi(float a,di_int expected)27*b9829059Sjoerg int test__fixsfdi(float a, di_int expected)
28*b9829059Sjoerg {
29*b9829059Sjoerg di_int x = __fixsfdi(a);
30*b9829059Sjoerg if (x != expected)
31*b9829059Sjoerg printf("error in __fixsfdi(%A) = %llX, expected %llX\n", a, x, expected);
32*b9829059Sjoerg return x != expected;
33*b9829059Sjoerg }
34*b9829059Sjoerg
35*b9829059Sjoerg char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
36*b9829059Sjoerg char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
37*b9829059Sjoerg char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
38*b9829059Sjoerg
main()39*b9829059Sjoerg int main()
40*b9829059Sjoerg {
41*b9829059Sjoerg if (test__fixsfdi(0.0F, 0))
42*b9829059Sjoerg return 1;
43*b9829059Sjoerg
44*b9829059Sjoerg if (test__fixsfdi(0.5F, 0))
45*b9829059Sjoerg return 1;
46*b9829059Sjoerg if (test__fixsfdi(0.99F, 0))
47*b9829059Sjoerg return 1;
48*b9829059Sjoerg if (test__fixsfdi(1.0F, 1))
49*b9829059Sjoerg return 1;
50*b9829059Sjoerg if (test__fixsfdi(1.5F, 1))
51*b9829059Sjoerg return 1;
52*b9829059Sjoerg if (test__fixsfdi(1.99F, 1))
53*b9829059Sjoerg return 1;
54*b9829059Sjoerg if (test__fixsfdi(2.0F, 2))
55*b9829059Sjoerg return 1;
56*b9829059Sjoerg if (test__fixsfdi(2.01F, 2))
57*b9829059Sjoerg return 1;
58*b9829059Sjoerg if (test__fixsfdi(-0.5F, 0))
59*b9829059Sjoerg return 1;
60*b9829059Sjoerg if (test__fixsfdi(-0.99F, 0))
61*b9829059Sjoerg return 1;
62*b9829059Sjoerg if (test__fixsfdi(-1.0F, -1))
63*b9829059Sjoerg return 1;
64*b9829059Sjoerg if (test__fixsfdi(-1.5F, -1))
65*b9829059Sjoerg return 1;
66*b9829059Sjoerg if (test__fixsfdi(-1.99F, -1))
67*b9829059Sjoerg return 1;
68*b9829059Sjoerg if (test__fixsfdi(-2.0F, -2))
69*b9829059Sjoerg return 1;
70*b9829059Sjoerg if (test__fixsfdi(-2.01F, -2))
71*b9829059Sjoerg return 1;
72*b9829059Sjoerg
73*b9829059Sjoerg if (test__fixsfdi(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL))
74*b9829059Sjoerg return 1;
75*b9829059Sjoerg if (test__fixsfdi(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL))
76*b9829059Sjoerg return 1;
77*b9829059Sjoerg
78*b9829059Sjoerg if (test__fixsfdi(-0x1.FFFFFEp+62F, 0x8000008000000000LL))
79*b9829059Sjoerg return 1;
80*b9829059Sjoerg if (test__fixsfdi(-0x1.FFFFFCp+62F, 0x8000010000000000LL))
81*b9829059Sjoerg return 1;
82*b9829059Sjoerg
83*b9829059Sjoerg return 0;
84*b9829059Sjoerg }
85