Meg's Mirrors

zig

1	const clz = @import("count0bits.zig");
2	const testing = @import("std").testing;
3
4	fn test__clzdi2(a: u64, expected: i64) !void {
5	const x: i64 = @bitCast(a);
6	const result = clz.__clzdi2(x);
7	try testing.expectEqual(expected, result);
8	}
9
10	test "clzdi2" {
11	try test__clzdi2(0x00800000_00000000, 8);
12	try test__clzdi2(0x01000000_00000000, 7);
13	try test__clzdi2(0x02000000_00000000, 6);
14	try test__clzdi2(0x03000000_00000000, 6);
15	try test__clzdi2(0x04000000_00000000, 5);
16	try test__clzdi2(0x05000000_00000000, 5);
17	try test__clzdi2(0x06000000_00000000, 5);
18	try test__clzdi2(0x07000000_00000000, 5);
19	try test__clzdi2(0x08000000_00000000, 4);
20	try test__clzdi2(0x09000000_00000000, 4);
21	try test__clzdi2(0x0A000000_00000000, 4);
22	try test__clzdi2(0x0B000000_00000000, 4);
23	try test__clzdi2(0x0C000000_00000000, 4);
24	try test__clzdi2(0x0D000000_00000000, 4);
25	try test__clzdi2(0x0E000000_00000000, 4);
26	try test__clzdi2(0x0F000000_00000000, 4);
27	try test__clzdi2(0x10000000_00000000, 3);
28	try test__clzdi2(0x11000000_00000000, 3);
29	try test__clzdi2(0x12000000_00000000, 3);
30	try test__clzdi2(0x13000000_00000000, 3);
31	try test__clzdi2(0x14000000_00000000, 3);
32	try test__clzdi2(0x15000000_00000000, 3);
33	try test__clzdi2(0x16000000_00000000, 3);
34	try test__clzdi2(0x17000000_00000000, 3);
35	try test__clzdi2(0x18000000_00000000, 3);
36	try test__clzdi2(0x19000000_00000000, 3);
37	try test__clzdi2(0x1A000000_00000000, 3);
38	try test__clzdi2(0x1B000000_00000000, 3);
39	try test__clzdi2(0x1C000000_00000000, 3);
40	try test__clzdi2(0x1D000000_00000000, 3);
41	try test__clzdi2(0x1E000000_00000000, 3);
42	try test__clzdi2(0x1F000000_00000000, 3);
43	try test__clzdi2(0x20000000_00000000, 2);
44	try test__clzdi2(0x21000000_00000000, 2);
45	try test__clzdi2(0x22000000_00000000, 2);
46	try test__clzdi2(0x23000000_00000000, 2);
47	try test__clzdi2(0x24000000_00000000, 2);
48	try test__clzdi2(0x25000000_00000000, 2);
49	try test__clzdi2(0x26000000_00000000, 2);
50	try test__clzdi2(0x27000000_00000000, 2);
51	try test__clzdi2(0x28000000_00000000, 2);
52	try test__clzdi2(0x29000000_00000000, 2);
53	try test__clzdi2(0x2A000000_00000000, 2);
54	try test__clzdi2(0x2B000000_00000000, 2);
55	try test__clzdi2(0x2C000000_00000000, 2);
56	try test__clzdi2(0x2D000000_00000000, 2);
57	try test__clzdi2(0x2E000000_00000000, 2);
58	try test__clzdi2(0x2F000000_00000000, 2);
59	try test__clzdi2(0x30000000_00000000, 2);
60	try test__clzdi2(0x31000000_00000000, 2);
61	try test__clzdi2(0x32000000_00000000, 2);
62	try test__clzdi2(0x33000000_00000000, 2);
63	try test__clzdi2(0x34000000_00000000, 2);
64	try test__clzdi2(0x35000000_00000000, 2);
65	try test__clzdi2(0x36000000_00000000, 2);
66	try test__clzdi2(0x37000000_00000000, 2);
67	try test__clzdi2(0x38000000_00000000, 2);
68	try test__clzdi2(0x39000000_00000000, 2);
69	try test__clzdi2(0x3A000000_00000000, 2);
70	try test__clzdi2(0x3B000000_00000000, 2);
71	try test__clzdi2(0x3C000000_00000000, 2);
72	try test__clzdi2(0x3D000000_00000000, 2);
73	try test__clzdi2(0x3E000000_00000000, 2);
74	try test__clzdi2(0x3F000000_00000000, 2);
75	try test__clzdi2(0x40000000_00000000, 1);
76	try test__clzdi2(0x41000000_00000000, 1);
77	try test__clzdi2(0x42000000_00000000, 1);
78	try test__clzdi2(0x43000000_00000000, 1);
79	try test__clzdi2(0x44000000_00000000, 1);
80	try test__clzdi2(0x45000000_00000000, 1);
81	try test__clzdi2(0x46000000_00000000, 1);
82	try test__clzdi2(0x47000000_00000000, 1);
83	try test__clzdi2(0x48000000_00000000, 1);
84	try test__clzdi2(0x49000000_00000000, 1);
85	try test__clzdi2(0x4A000000_00000000, 1);
86	try test__clzdi2(0x4B000000_00000000, 1);
87	try test__clzdi2(0x4C000000_00000000, 1);
88	try test__clzdi2(0x4D000000_00000000, 1);
89	try test__clzdi2(0x4E000000_00000000, 1);
90	try test__clzdi2(0x4F000000_00000000, 1);
91	try test__clzdi2(0x50000000_00000000, 1);
92	try test__clzdi2(0x51000000_00000000, 1);
93	try test__clzdi2(0x52000000_00000000, 1);
94	try test__clzdi2(0x53000000_00000000, 1);
95	try test__clzdi2(0x54000000_00000000, 1);
96	try test__clzdi2(0x55000000_00000000, 1);
97	try test__clzdi2(0x56000000_00000000, 1);
98	try test__clzdi2(0x57000000_00000000, 1);
99	try test__clzdi2(0x58000000_00000000, 1);
100	try test__clzdi2(0x59000000_00000000, 1);
101	try test__clzdi2(0x5A000000_00000000, 1);
102	try test__clzdi2(0x5B000000_00000000, 1);
103	try test__clzdi2(0x5C000000_00000000, 1);
104	try test__clzdi2(0x5D000000_00000000, 1);
105	try test__clzdi2(0x5E000000_00000000, 1);
106	try test__clzdi2(0x5F000000_00000000, 1);
107	try test__clzdi2(0x60000000_00000000, 1);
108	try test__clzdi2(0x61000000_00000000, 1);
109	try test__clzdi2(0x62000000_00000000, 1);
110	try test__clzdi2(0x63000000_00000000, 1);
111	try test__clzdi2(0x64000000_00000000, 1);
112	try test__clzdi2(0x65000000_00000000, 1);
113	try test__clzdi2(0x66000000_00000000, 1);
114	try test__clzdi2(0x67000000_00000000, 1);
115	try test__clzdi2(0x68000000_00000000, 1);
116	try test__clzdi2(0x69000000_00000000, 1);
117	try test__clzdi2(0x6A000000_00000000, 1);
118	try test__clzdi2(0x6B000000_00000000, 1);
119	try test__clzdi2(0x6C000000_00000000, 1);
120	try test__clzdi2(0x6D000000_00000000, 1);
121	try test__clzdi2(0x6E000000_00000000, 1);
122	try test__clzdi2(0x6F000000_00000000, 1);
123	try test__clzdi2(0x70000000_00000000, 1);
124	try test__clzdi2(0x71000000_00000000, 1);
125	try test__clzdi2(0x72000000_00000000, 1);
126	try test__clzdi2(0x73000000_00000000, 1);
127	try test__clzdi2(0x74000000_00000000, 1);
128	try test__clzdi2(0x75000000_00000000, 1);
129	try test__clzdi2(0x76000000_00000000, 1);
130	try test__clzdi2(0x77000000_00000000, 1);
131	try test__clzdi2(0x78000000_00000000, 1);
132	try test__clzdi2(0x79000000_00000000, 1);
133	try test__clzdi2(0x7A000000_00000000, 1);
134	try test__clzdi2(0x7B000000_00000000, 1);
135	try test__clzdi2(0x7C000000_00000000, 1);
136	try test__clzdi2(0x7D000000_00000000, 1);
137	try test__clzdi2(0x7E000000_00000000, 1);
138	try test__clzdi2(0x7F000000_00000000, 1);
139	try test__clzdi2(0x80000000_00000000, 0);
140	try test__clzdi2(0x81000000_00000000, 0);
141	try test__clzdi2(0x82000000_00000000, 0);
142	try test__clzdi2(0x83000000_00000000, 0);
143	try test__clzdi2(0x84000000_00000000, 0);
144	try test__clzdi2(0x85000000_00000000, 0);
145	try test__clzdi2(0x86000000_00000000, 0);
146	try test__clzdi2(0x87000000_00000000, 0);
147	try test__clzdi2(0x88000000_00000000, 0);
148	try test__clzdi2(0x89000000_00000000, 0);
149	try test__clzdi2(0x8A000000_00000000, 0);
150	try test__clzdi2(0x8B000000_00000000, 0);
151	try test__clzdi2(0x8C000000_00000000, 0);
152	try test__clzdi2(0x8D000000_00000000, 0);
153	try test__clzdi2(0x8E000000_00000000, 0);
154	try test__clzdi2(0x8F000000_00000000, 0);
155	try test__clzdi2(0x90000000_00000000, 0);
156	try test__clzdi2(0x91000000_00000000, 0);
157	try test__clzdi2(0x92000000_00000000, 0);
158	try test__clzdi2(0x93000000_00000000, 0);
159	try test__clzdi2(0x94000000_00000000, 0);
160	try test__clzdi2(0x95000000_00000000, 0);
161	try test__clzdi2(0x96000000_00000000, 0);
162	try test__clzdi2(0x97000000_00000000, 0);
163	try test__clzdi2(0x98000000_00000000, 0);
164	try test__clzdi2(0x99000000_00000000, 0);
165	try test__clzdi2(0x9A000000_00000000, 0);
166	try test__clzdi2(0x9B000000_00000000, 0);
167	try test__clzdi2(0x9C000000_00000000, 0);
168	try test__clzdi2(0x9D000000_00000000, 0);
169	try test__clzdi2(0x9E000000_00000000, 0);
170	try test__clzdi2(0x9F000000_00000000, 0);
171	try test__clzdi2(0xA0000000_00000000, 0);
172	try test__clzdi2(0xA1000000_00000000, 0);
173	try test__clzdi2(0xA2000000_00000000, 0);
174	try test__clzdi2(0xA3000000_00000000, 0);
175	try test__clzdi2(0xA4000000_00000000, 0);
176	try test__clzdi2(0xA5000000_00000000, 0);
177	try test__clzdi2(0xA6000000_00000000, 0);
178	try test__clzdi2(0xA7000000_00000000, 0);
179	try test__clzdi2(0xA8000000_00000000, 0);
180	try test__clzdi2(0xA9000000_00000000, 0);
181	try test__clzdi2(0xAA000000_00000000, 0);
182	try test__clzdi2(0xAB000000_00000000, 0);
183	try test__clzdi2(0xAC000000_00000000, 0);
184	try test__clzdi2(0xAD000000_00000000, 0);
185	try test__clzdi2(0xAE000000_00000000, 0);
186	try test__clzdi2(0xAF000000_00000000, 0);
187	try test__clzdi2(0xB0000000_00000000, 0);
188	try test__clzdi2(0xB1000000_00000000, 0);
189	try test__clzdi2(0xB2000000_00000000, 0);
190	try test__clzdi2(0xB3000000_00000000, 0);
191	try test__clzdi2(0xB4000000_00000000, 0);
192	try test__clzdi2(0xB5000000_00000000, 0);
193	try test__clzdi2(0xB6000000_00000000, 0);
194	try test__clzdi2(0xB7000000_00000000, 0);
195	try test__clzdi2(0xB8000000_00000000, 0);
196	try test__clzdi2(0xB9000000_00000000, 0);
197	try test__clzdi2(0xBA000000_00000000, 0);
198	try test__clzdi2(0xBB000000_00000000, 0);
199	try test__clzdi2(0xBC000000_00000000, 0);
200	try test__clzdi2(0xBD000000_00000000, 0);
201	try test__clzdi2(0xBE000000_00000000, 0);
202	try test__clzdi2(0xBF000000_00000000, 0);
203	try test__clzdi2(0xC0000000_00000000, 0);
204	try test__clzdi2(0xC1000000_00000000, 0);
205	try test__clzdi2(0xC2000000_00000000, 0);
206	try test__clzdi2(0xC3000000_00000000, 0);
207	try test__clzdi2(0xC4000000_00000000, 0);
208	try test__clzdi2(0xC5000000_00000000, 0);
209	try test__clzdi2(0xC6000000_00000000, 0);
210	try test__clzdi2(0xC7000000_00000000, 0);
211	try test__clzdi2(0xC8000000_00000000, 0);
212	try test__clzdi2(0xC9000000_00000000, 0);
213	try test__clzdi2(0xCA000000_00000000, 0);
214	try test__clzdi2(0xCB000000_00000000, 0);
215	try test__clzdi2(0xCC000000_00000000, 0);
216	try test__clzdi2(0xCD000000_00000000, 0);
217	try test__clzdi2(0xCE000000_00000000, 0);
218	try test__clzdi2(0xCF000000_00000000, 0);
219	try test__clzdi2(0xD0000000_00000000, 0);
220	try test__clzdi2(0xD1000000_00000000, 0);
221	try test__clzdi2(0xD2000000_00000000, 0);
222	try test__clzdi2(0xD3000000_00000000, 0);
223	try test__clzdi2(0xD4000000_00000000, 0);
224	try test__clzdi2(0xD5000000_00000000, 0);
225	try test__clzdi2(0xD6000000_00000000, 0);
226	try test__clzdi2(0xD7000000_00000000, 0);
227	try test__clzdi2(0xD8000000_00000000, 0);
228	try test__clzdi2(0xD9000000_00000000, 0);
229	try test__clzdi2(0xDA000000_00000000, 0);
230	try test__clzdi2(0xDB000000_00000000, 0);
231	try test__clzdi2(0xDC000000_00000000, 0);
232	try test__clzdi2(0xDD000000_00000000, 0);
233	try test__clzdi2(0xDE000000_00000000, 0);
234	try test__clzdi2(0xDF000000_00000000, 0);
235	try test__clzdi2(0xE0000000_00000000, 0);
236	try test__clzdi2(0xE1000000_00000000, 0);
237	try test__clzdi2(0xE2000000_00000000, 0);
238	try test__clzdi2(0xE3000000_00000000, 0);
239	try test__clzdi2(0xE4000000_00000000, 0);
240	try test__clzdi2(0xE5000000_00000000, 0);
241	try test__clzdi2(0xE6000000_00000000, 0);
242	try test__clzdi2(0xE7000000_00000000, 0);
243	try test__clzdi2(0xE8000000_00000000, 0);
244	try test__clzdi2(0xE9000000_00000000, 0);
245	try test__clzdi2(0xEA000000_00000000, 0);
246	try test__clzdi2(0xEB000000_00000000, 0);
247	try test__clzdi2(0xEC000000_00000000, 0);
248	try test__clzdi2(0xED000000_00000000, 0);
249	try test__clzdi2(0xEE000000_00000000, 0);
250	try test__clzdi2(0xEF000000_00000000, 0);
251	try test__clzdi2(0xF0000000_00000000, 0);
252	try test__clzdi2(0xF1000000_00000000, 0);
253	try test__clzdi2(0xF2000000_00000000, 0);
254	try test__clzdi2(0xF3000000_00000000, 0);
255	try test__clzdi2(0xF4000000_00000000, 0);
256	try test__clzdi2(0xF5000000_00000000, 0);
257	try test__clzdi2(0xF6000000_00000000, 0);
258	try test__clzdi2(0xF7000000_00000000, 0);
259	try test__clzdi2(0xF8000000_00000000, 0);
260	try test__clzdi2(0xF9000000_00000000, 0);
261	try test__clzdi2(0xFA000000_00000000, 0);
262	try test__clzdi2(0xFB000000_00000000, 0);
263	try test__clzdi2(0xFC000000_00000000, 0);
264	try test__clzdi2(0xFD000000_00000000, 0);
265	try test__clzdi2(0xFE000000_00000000, 0);
266	try test__clzdi2(0xFF000000_00000000, 0);
267
268	try test__clzdi2(0x00000000_00000000, 64);
269	try test__clzdi2(0x00000000_00000001, 63);
270	try test__clzdi2(0x00000000_00000002, 62);
271	try test__clzdi2(0x00000000_00000004, 61);
272	try test__clzdi2(0x00000000_00000008, 60);
273	try test__clzdi2(0x00000000_00000010, 59);
274	try test__clzdi2(0x00000000_00000020, 58);
275	try test__clzdi2(0x00000000_00000040, 57);
276	try test__clzdi2(0x00000000_00000080, 56);
277	try test__clzdi2(0x00000000_00000100, 55);
278	try test__clzdi2(0x00000000_00000200, 54);
279	try test__clzdi2(0x00000000_00000400, 53);
280	try test__clzdi2(0x00000000_00000800, 52);
281	try test__clzdi2(0x00000000_00001000, 51);
282	try test__clzdi2(0x00000000_00002000, 50);
283	try test__clzdi2(0x00000000_00004000, 49);
284	try test__clzdi2(0x00000000_00008000, 48);
285	try test__clzdi2(0x00000000_00010000, 47);
286	try test__clzdi2(0x00000000_00020000, 46);
287	try test__clzdi2(0x00000000_00040000, 45);
288	try test__clzdi2(0x00000000_00080000, 44);
289	try test__clzdi2(0x00000000_00100000, 43);
290	try test__clzdi2(0x00000000_00200000, 42);
291	try test__clzdi2(0x00000000_00400000, 41);
292	try test__clzdi2(0x00000000_00800000, 40);
293	try test__clzdi2(0x00000000_01000000, 39);
294	try test__clzdi2(0x00000000_02000000, 38);
295	try test__clzdi2(0x00000000_04000000, 37);
296	try test__clzdi2(0x00000000_08000000, 36);
297	try test__clzdi2(0x00000000_10000000, 35);
298	try test__clzdi2(0x00000000_20000000, 34);
299	try test__clzdi2(0x00000000_40000000, 33);
300	try test__clzdi2(0x00000000_80000000, 32);
301
302	try test__clzdi2(0x00000001_00000000, 31);
303	try test__clzdi2(0x00000002_00000000, 30);
304	try test__clzdi2(0x00000004_00000000, 29);
305	try test__clzdi2(0x00000008_00000000, 28);
306	try test__clzdi2(0x00000010_00000000, 27);
307	try test__clzdi2(0x00000020_00000000, 26);
308	try test__clzdi2(0x00000040_00000000, 25);
309	try test__clzdi2(0x00000080_00000000, 24);
310	try test__clzdi2(0x00000100_00000000, 23);
311	try test__clzdi2(0x00000200_00000000, 22);
312	try test__clzdi2(0x00000400_00000000, 21);
313	try test__clzdi2(0x00000800_00000000, 20);
314	try test__clzdi2(0x00001000_00000000, 19);
315	try test__clzdi2(0x00002000_00000000, 18);
316	try test__clzdi2(0x00004000_00000000, 17);
317	try test__clzdi2(0x00008000_00000000, 16);
318	try test__clzdi2(0x00010000_00000000, 15);
319	try test__clzdi2(0x00020000_00000000, 14);
320	try test__clzdi2(0x00040000_00000000, 13);
321	try test__clzdi2(0x00080000_00000000, 12);
322	try test__clzdi2(0x00100000_00000000, 11);
323	try test__clzdi2(0x00200000_00000000, 10);
324	try test__clzdi2(0x00400000_00000000, 9);
325	}