1*b9829059Sjoerg //===-- fixunsxfsi_test.c - Test __fixunsxfsi -----------------------------===//
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 __fixunsxfsi 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 #if HAS_80_BIT_LONG_DOUBLE
18*b9829059Sjoerg // Returns: convert a to a unsigned int, rounding toward zero.
19*b9829059Sjoerg // Negative values all become zero.
20*b9829059Sjoerg
21*b9829059Sjoerg // Assumption: long double is an intel 80 bit floating point type padded with 6 bytes
22*b9829059Sjoerg // su_int is a 32 bit integral type
23*b9829059Sjoerg // value in long double is representable in su_int or is negative
24*b9829059Sjoerg // (no range checking performed)
25*b9829059Sjoerg
26*b9829059Sjoerg // gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
27*b9829059Sjoerg // 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
28*b9829059Sjoerg
29*b9829059Sjoerg su_int __fixunsxfsi(long double a);
30*b9829059Sjoerg
test__fixunsxfsi(long double a,su_int expected)31*b9829059Sjoerg int test__fixunsxfsi(long double a, su_int expected)
32*b9829059Sjoerg {
33*b9829059Sjoerg su_int x = __fixunsxfsi(a);
34*b9829059Sjoerg if (x != expected)
35*b9829059Sjoerg printf("error in __fixunsxfsi(%LA) = %X, expected %X\n", a, x, expected);
36*b9829059Sjoerg return x != expected;
37*b9829059Sjoerg }
38*b9829059Sjoerg
39*b9829059Sjoerg char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
40*b9829059Sjoerg char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
41*b9829059Sjoerg #endif
42*b9829059Sjoerg
main()43*b9829059Sjoerg int main()
44*b9829059Sjoerg {
45*b9829059Sjoerg #if HAS_80_BIT_LONG_DOUBLE
46*b9829059Sjoerg if (test__fixunsxfsi(0.0, 0))
47*b9829059Sjoerg return 1;
48*b9829059Sjoerg
49*b9829059Sjoerg if (test__fixunsxfsi(0.5, 0))
50*b9829059Sjoerg return 1;
51*b9829059Sjoerg if (test__fixunsxfsi(0.99, 0))
52*b9829059Sjoerg return 1;
53*b9829059Sjoerg if (test__fixunsxfsi(1.0, 1))
54*b9829059Sjoerg return 1;
55*b9829059Sjoerg if (test__fixunsxfsi(1.5, 1))
56*b9829059Sjoerg return 1;
57*b9829059Sjoerg if (test__fixunsxfsi(1.99, 1))
58*b9829059Sjoerg return 1;
59*b9829059Sjoerg if (test__fixunsxfsi(2.0, 2))
60*b9829059Sjoerg return 1;
61*b9829059Sjoerg if (test__fixunsxfsi(2.01, 2))
62*b9829059Sjoerg return 1;
63*b9829059Sjoerg if (test__fixunsxfsi(-0.5, 0))
64*b9829059Sjoerg return 1;
65*b9829059Sjoerg if (test__fixunsxfsi(-0.99, 0))
66*b9829059Sjoerg return 1;
67*b9829059Sjoerg #if !TARGET_LIBGCC
68*b9829059Sjoerg if (test__fixunsxfsi(-1.0, 0)) // libgcc ignores "returns 0 for negative input" spec
69*b9829059Sjoerg return 1;
70*b9829059Sjoerg if (test__fixunsxfsi(-1.5, 0))
71*b9829059Sjoerg return 1;
72*b9829059Sjoerg if (test__fixunsxfsi(-1.99, 0))
73*b9829059Sjoerg return 1;
74*b9829059Sjoerg if (test__fixunsxfsi(-2.0, 0))
75*b9829059Sjoerg return 1;
76*b9829059Sjoerg if (test__fixunsxfsi(-2.01, 0))
77*b9829059Sjoerg return 1;
78*b9829059Sjoerg #endif
79*b9829059Sjoerg
80*b9829059Sjoerg if (test__fixunsxfsi(0x1.000000p+31, 0x80000000))
81*b9829059Sjoerg return 1;
82*b9829059Sjoerg if (test__fixunsxfsi(0x1.FFFFFEp+31, 0xFFFFFF00))
83*b9829059Sjoerg return 1;
84*b9829059Sjoerg if (test__fixunsxfsi(0x1.FFFFFEp+30, 0x7FFFFF80))
85*b9829059Sjoerg return 1;
86*b9829059Sjoerg if (test__fixunsxfsi(0x1.FFFFFCp+30, 0x7FFFFF00))
87*b9829059Sjoerg return 1;
88*b9829059Sjoerg
89*b9829059Sjoerg #if !TARGET_LIBGCC
90*b9829059Sjoerg if (test__fixunsxfsi(-0x1.FFFFFEp+30, 0))
91*b9829059Sjoerg return 1;
92*b9829059Sjoerg if (test__fixunsxfsi(-0x1.FFFFFCp+30, 0))
93*b9829059Sjoerg return 1;
94*b9829059Sjoerg #endif
95*b9829059Sjoerg
96*b9829059Sjoerg if (test__fixunsxfsi(0x1.FFFFFFFEp+31, 0xFFFFFFFF))
97*b9829059Sjoerg return 1;
98*b9829059Sjoerg if (test__fixunsxfsi(0x1.FFFFFFFC00000p+30, 0x7FFFFFFF))
99*b9829059Sjoerg return 1;
100*b9829059Sjoerg if (test__fixunsxfsi(0x1.FFFFFFF800000p+30, 0x7FFFFFFE))
101*b9829059Sjoerg return 1;
102*b9829059Sjoerg
103*b9829059Sjoerg #endif
104*b9829059Sjoerg return 0;
105*b9829059Sjoerg }
106