1*b9829059Sjoerg //===-- floattisf_test.c - Test __floattisf -------------------------------===//
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 __floattisf for the compiler_rt library.
11*b9829059Sjoerg //
12*b9829059Sjoerg //===----------------------------------------------------------------------===//
13*b9829059Sjoerg
14*b9829059Sjoerg #if __x86_64
15*b9829059Sjoerg
16*b9829059Sjoerg #include "int_lib.h"
17*b9829059Sjoerg #include <float.h>
18*b9829059Sjoerg #include <stdio.h>
19*b9829059Sjoerg
20*b9829059Sjoerg // Returns: convert a to a float, rounding toward even.
21*b9829059Sjoerg
22*b9829059Sjoerg // Assumption: float is a IEEE 32 bit floating point type
23*b9829059Sjoerg // ti_int is a 64 bit integral type
24*b9829059Sjoerg
25*b9829059Sjoerg // seee eeee emmm mmmm mmmm mmmm mmmm mmmm
26*b9829059Sjoerg
27*b9829059Sjoerg float __floattisf(ti_int a);
28*b9829059Sjoerg
test__floattisf(ti_int a,float expected)29*b9829059Sjoerg int test__floattisf(ti_int a, float expected)
30*b9829059Sjoerg {
31*b9829059Sjoerg float x = __floattisf(a);
32*b9829059Sjoerg if (x != expected)
33*b9829059Sjoerg {
34*b9829059Sjoerg twords at;
35*b9829059Sjoerg at.all = a;
36*b9829059Sjoerg printf("error in __floattisf(0x%.16llX%.16llX) = %a, expected %a\n",
37*b9829059Sjoerg at.s.high, at.s.low, x, expected);
38*b9829059Sjoerg }
39*b9829059Sjoerg return x != expected;
40*b9829059Sjoerg }
41*b9829059Sjoerg
42*b9829059Sjoerg char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
43*b9829059Sjoerg char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0};
44*b9829059Sjoerg char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
45*b9829059Sjoerg
46*b9829059Sjoerg #endif
47*b9829059Sjoerg
main()48*b9829059Sjoerg int main()
49*b9829059Sjoerg {
50*b9829059Sjoerg #if __x86_64
51*b9829059Sjoerg if (test__floattisf(0, 0.0F))
52*b9829059Sjoerg return 1;
53*b9829059Sjoerg
54*b9829059Sjoerg if (test__floattisf(1, 1.0F))
55*b9829059Sjoerg return 1;
56*b9829059Sjoerg if (test__floattisf(2, 2.0F))
57*b9829059Sjoerg return 1;
58*b9829059Sjoerg if (test__floattisf(-1, -1.0F))
59*b9829059Sjoerg return 1;
60*b9829059Sjoerg if (test__floattisf(-2, -2.0F))
61*b9829059Sjoerg return 1;
62*b9829059Sjoerg
63*b9829059Sjoerg if (test__floattisf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62F))
64*b9829059Sjoerg return 1;
65*b9829059Sjoerg if (test__floattisf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62F))
66*b9829059Sjoerg return 1;
67*b9829059Sjoerg
68*b9829059Sjoerg if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000008000000000LL),
69*b9829059Sjoerg -0x1.FFFFFEp+62F))
70*b9829059Sjoerg return 1;
71*b9829059Sjoerg if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000010000000000LL),
72*b9829059Sjoerg -0x1.FFFFFCp+62F))
73*b9829059Sjoerg return 1;
74*b9829059Sjoerg
75*b9829059Sjoerg if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000000000000000LL),
76*b9829059Sjoerg -0x1.000000p+63F))
77*b9829059Sjoerg return 1;
78*b9829059Sjoerg if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000000000000001LL),
79*b9829059Sjoerg -0x1.000000p+63F))
80*b9829059Sjoerg return 1;
81*b9829059Sjoerg
82*b9829059Sjoerg if (test__floattisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F))
83*b9829059Sjoerg return 1;
84*b9829059Sjoerg
85*b9829059Sjoerg if (test__floattisf(0x0007FB72EA000000LL, 0x1.FEDCBAp+50F))
86*b9829059Sjoerg return 1;
87*b9829059Sjoerg if (test__floattisf(0x0007FB72EB000000LL, 0x1.FEDCBAp+50F))
88*b9829059Sjoerg return 1;
89*b9829059Sjoerg if (test__floattisf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAp+50F))
90*b9829059Sjoerg return 1;
91*b9829059Sjoerg if (test__floattisf(0x0007FB72EC000000LL, 0x1.FEDCBCp+50F))
92*b9829059Sjoerg return 1;
93*b9829059Sjoerg if (test__floattisf(0x0007FB72E8000001LL, 0x1.FEDCBAp+50F))
94*b9829059Sjoerg return 1;
95*b9829059Sjoerg
96*b9829059Sjoerg if (test__floattisf(0x0007FB72E6000000LL, 0x1.FEDCBAp+50F))
97*b9829059Sjoerg return 1;
98*b9829059Sjoerg if (test__floattisf(0x0007FB72E7000000LL, 0x1.FEDCBAp+50F))
99*b9829059Sjoerg return 1;
100*b9829059Sjoerg if (test__floattisf(0x0007FB72E7FFFFFFLL, 0x1.FEDCBAp+50F))
101*b9829059Sjoerg return 1;
102*b9829059Sjoerg if (test__floattisf(0x0007FB72E4000001LL, 0x1.FEDCBAp+50F))
103*b9829059Sjoerg return 1;
104*b9829059Sjoerg if (test__floattisf(0x0007FB72E4000000LL, 0x1.FEDCB8p+50F))
105*b9829059Sjoerg return 1;
106*b9829059Sjoerg
107*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72E8000000LL, 0), 0x1.FEDCBAp+114F))
108*b9829059Sjoerg return 1;
109*b9829059Sjoerg
110*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72EA000000LL, 0), 0x1.FEDCBAp+114F))
111*b9829059Sjoerg return 1;
112*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72EB000000LL, 0), 0x1.FEDCBAp+114F))
113*b9829059Sjoerg return 1;
114*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72EBFFFFFFLL, 0), 0x1.FEDCBAp+114F))
115*b9829059Sjoerg return 1;
116*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72EC000000LL, 0), 0x1.FEDCBCp+114F))
117*b9829059Sjoerg return 1;
118*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72E8000001LL, 0), 0x1.FEDCBAp+114F))
119*b9829059Sjoerg return 1;
120*b9829059Sjoerg
121*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72E6000000LL, 0), 0x1.FEDCBAp+114F))
122*b9829059Sjoerg return 1;
123*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72E7000000LL, 0), 0x1.FEDCBAp+114F))
124*b9829059Sjoerg return 1;
125*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72E7FFFFFFLL, 0), 0x1.FEDCBAp+114F))
126*b9829059Sjoerg return 1;
127*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72E4000001LL, 0), 0x1.FEDCBAp+114F))
128*b9829059Sjoerg return 1;
129*b9829059Sjoerg if (test__floattisf(make_ti(0x0007FB72E4000000LL, 0), 0x1.FEDCB8p+114F))
130*b9829059Sjoerg return 1;
131*b9829059Sjoerg
132*b9829059Sjoerg #else
133*b9829059Sjoerg printf("skipped\n");
134*b9829059Sjoerg #endif
135*b9829059Sjoerg return 0;
136*b9829059Sjoerg }
137