1*4684ddb6SLionel Sambuc //===-- fixdfti_test.c - Test __fixdfti -----------------------------------===//
2*4684ddb6SLionel Sambuc //
3*4684ddb6SLionel Sambuc // The LLVM Compiler Infrastructure
4*4684ddb6SLionel Sambuc //
5*4684ddb6SLionel Sambuc // This file is dual licensed under the MIT and the University of Illinois Open
6*4684ddb6SLionel Sambuc // Source Licenses. See LICENSE.TXT for details.
7*4684ddb6SLionel Sambuc //
8*4684ddb6SLionel Sambuc //===----------------------------------------------------------------------===//
9*4684ddb6SLionel Sambuc //
10*4684ddb6SLionel Sambuc // This file tests __fixdfti for the compiler_rt library.
11*4684ddb6SLionel Sambuc //
12*4684ddb6SLionel Sambuc //===----------------------------------------------------------------------===//
13*4684ddb6SLionel Sambuc
14*4684ddb6SLionel Sambuc #if __x86_64
15*4684ddb6SLionel Sambuc
16*4684ddb6SLionel Sambuc #include "int_lib.h"
17*4684ddb6SLionel Sambuc #include <stdio.h>
18*4684ddb6SLionel Sambuc
19*4684ddb6SLionel Sambuc // Returns: convert a to a signed long long, rounding toward zero.
20*4684ddb6SLionel Sambuc
21*4684ddb6SLionel Sambuc // Assumption: double is a IEEE 64 bit floating point type
22*4684ddb6SLionel Sambuc // su_int is a 32 bit integral type
23*4684ddb6SLionel Sambuc // value in double is representable in ti_int (no range checking performed)
24*4684ddb6SLionel Sambuc
25*4684ddb6SLionel Sambuc // seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
26*4684ddb6SLionel Sambuc
27*4684ddb6SLionel Sambuc ti_int __fixdfti(double a);
28*4684ddb6SLionel Sambuc
test__fixdfti(double a,ti_int expected)29*4684ddb6SLionel Sambuc int test__fixdfti(double a, ti_int expected)
30*4684ddb6SLionel Sambuc {
31*4684ddb6SLionel Sambuc ti_int x = __fixdfti(a);
32*4684ddb6SLionel Sambuc if (x != expected)
33*4684ddb6SLionel Sambuc {
34*4684ddb6SLionel Sambuc twords xt;
35*4684ddb6SLionel Sambuc xt.all = x;
36*4684ddb6SLionel Sambuc twords expectedt;
37*4684ddb6SLionel Sambuc expectedt.all = expected;
38*4684ddb6SLionel Sambuc printf("error in __fixdfti(%A) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
39*4684ddb6SLionel Sambuc a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low);
40*4684ddb6SLionel Sambuc }
41*4684ddb6SLionel Sambuc return x != expected;
42*4684ddb6SLionel Sambuc }
43*4684ddb6SLionel Sambuc
44*4684ddb6SLionel Sambuc char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
45*4684ddb6SLionel Sambuc char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
46*4684ddb6SLionel Sambuc char assumption_3[sizeof(double)*CHAR_BIT == 64] = {0};
47*4684ddb6SLionel Sambuc
48*4684ddb6SLionel Sambuc #endif
49*4684ddb6SLionel Sambuc
main()50*4684ddb6SLionel Sambuc int main()
51*4684ddb6SLionel Sambuc {
52*4684ddb6SLionel Sambuc #if __x86_64
53*4684ddb6SLionel Sambuc if (test__fixdfti(0.0, 0))
54*4684ddb6SLionel Sambuc return 1;
55*4684ddb6SLionel Sambuc
56*4684ddb6SLionel Sambuc if (test__fixdfti(0.5, 0))
57*4684ddb6SLionel Sambuc return 1;
58*4684ddb6SLionel Sambuc if (test__fixdfti(0.99, 0))
59*4684ddb6SLionel Sambuc return 1;
60*4684ddb6SLionel Sambuc if (test__fixdfti(1.0, 1))
61*4684ddb6SLionel Sambuc return 1;
62*4684ddb6SLionel Sambuc if (test__fixdfti(1.5, 1))
63*4684ddb6SLionel Sambuc return 1;
64*4684ddb6SLionel Sambuc if (test__fixdfti(1.99, 1))
65*4684ddb6SLionel Sambuc return 1;
66*4684ddb6SLionel Sambuc if (test__fixdfti(2.0, 2))
67*4684ddb6SLionel Sambuc return 1;
68*4684ddb6SLionel Sambuc if (test__fixdfti(2.01, 2))
69*4684ddb6SLionel Sambuc return 1;
70*4684ddb6SLionel Sambuc if (test__fixdfti(-0.5, 0))
71*4684ddb6SLionel Sambuc return 1;
72*4684ddb6SLionel Sambuc if (test__fixdfti(-0.99, 0))
73*4684ddb6SLionel Sambuc return 1;
74*4684ddb6SLionel Sambuc if (test__fixdfti(-1.0, -1))
75*4684ddb6SLionel Sambuc return 1;
76*4684ddb6SLionel Sambuc if (test__fixdfti(-1.5, -1))
77*4684ddb6SLionel Sambuc return 1;
78*4684ddb6SLionel Sambuc if (test__fixdfti(-1.99, -1))
79*4684ddb6SLionel Sambuc return 1;
80*4684ddb6SLionel Sambuc if (test__fixdfti(-2.0, -2))
81*4684ddb6SLionel Sambuc return 1;
82*4684ddb6SLionel Sambuc if (test__fixdfti(-2.01, -2))
83*4684ddb6SLionel Sambuc return 1;
84*4684ddb6SLionel Sambuc
85*4684ddb6SLionel Sambuc if (test__fixdfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
86*4684ddb6SLionel Sambuc return 1;
87*4684ddb6SLionel Sambuc if (test__fixdfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
88*4684ddb6SLionel Sambuc return 1;
89*4684ddb6SLionel Sambuc
90*4684ddb6SLionel Sambuc if (test__fixdfti(-0x1.FFFFFEp+62, make_ti(0xFFFFFFFFFFFFFFFFLL,
91*4684ddb6SLionel Sambuc 0x8000008000000000LL)))
92*4684ddb6SLionel Sambuc return 1;
93*4684ddb6SLionel Sambuc if (test__fixdfti(-0x1.FFFFFCp+62, make_ti(0xFFFFFFFFFFFFFFFFLL,
94*4684ddb6SLionel Sambuc 0x8000010000000000LL)))
95*4684ddb6SLionel Sambuc return 1;
96*4684ddb6SLionel Sambuc
97*4684ddb6SLionel Sambuc if (test__fixdfti(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
98*4684ddb6SLionel Sambuc return 1;
99*4684ddb6SLionel Sambuc if (test__fixdfti(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
100*4684ddb6SLionel Sambuc return 1;
101*4684ddb6SLionel Sambuc
102*4684ddb6SLionel Sambuc if (test__fixdfti(-0x1.FFFFFFFFFFFFFp+62, make_ti(0xFFFFFFFFFFFFFFFFLL,
103*4684ddb6SLionel Sambuc 0x8000000000000400LL)))
104*4684ddb6SLionel Sambuc return 1;
105*4684ddb6SLionel Sambuc if (test__fixdfti(-0x1.FFFFFFFFFFFFEp+62, make_ti(0xFFFFFFFFFFFFFFFFLL,
106*4684ddb6SLionel Sambuc 0x8000000000000800LL)))
107*4684ddb6SLionel Sambuc return 1;
108*4684ddb6SLionel Sambuc
109*4684ddb6SLionel Sambuc if (test__fixdfti(0x1.FFFFFFFFFFFFFp+126, make_ti(0x7FFFFFFFFFFFFC00LL, 0)))
110*4684ddb6SLionel Sambuc return 1;
111*4684ddb6SLionel Sambuc if (test__fixdfti(0x1.FFFFFFFFFFFFEp+126, make_ti(0x7FFFFFFFFFFFF800LL, 0)))
112*4684ddb6SLionel Sambuc return 1;
113*4684ddb6SLionel Sambuc
114*4684ddb6SLionel Sambuc if (test__fixdfti(-0x1.FFFFFFFFFFFFFp+126, make_ti(0x8000000000000400LL, 0)))
115*4684ddb6SLionel Sambuc return 1;
116*4684ddb6SLionel Sambuc if (test__fixdfti(-0x1.FFFFFFFFFFFFEp+126, make_ti(0x8000000000000800LL, 0)))
117*4684ddb6SLionel Sambuc return 1;
118*4684ddb6SLionel Sambuc
119*4684ddb6SLionel Sambuc #else
120*4684ddb6SLionel Sambuc printf("skipped\n");
121*4684ddb6SLionel Sambuc #endif
122*4684ddb6SLionel Sambuc return 0;
123*4684ddb6SLionel Sambuc }
124