1 /* PR rtl-optimization/20527
2 Mishandled postincrement. This test-case is derived from the
3 function BZ2_hbCreateDecodeTables in the file huffman.c from
4 bzip2-1.0.2, hence requiring the following disclaimer copied here: */
5
6 /*--
7 This file is a part of bzip2 and/or libbzip2, a program and
8 library for lossless, block-sorting data compression.
9
10 Copyright (C) 1996-2002 Julian R Seward. All rights reserved.
11
12 Redistribution and use in source and binary forms, with or without
13 modification, are permitted provided that the following conditions
14 are met:
15
16 1. Redistributions of source code must retain the above copyright
17 notice, this list of conditions and the following disclaimer.
18
19 2. The origin of this software must not be misrepresented; you must
20 not claim that you wrote the original software. If you use this
21 software in a product, an acknowledgment in the product
22 documentation would be appreciated but is not required.
23
24 3. Altered source versions must be plainly marked as such, and must
25 not be misrepresented as being the original software.
26
27 4. The name of the author may not be used to endorse or promote
28 products derived from this software without specific prior written
29 permission.
30
31 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
32 OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
33 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
35 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
37 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
38 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
39 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
40 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
41 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42
43 Julian Seward, Cambridge, UK.
44 jseward@acm.org
45 bzip2/libbzip2 version 1.0 of 21 March 2000
46
47 This program is based on (at least) the work of:
48 Mike Burrows
49 David Wheeler
50 Peter Fenwick
51 Alistair Moffat
52 Radford Neal
53 Ian H. Witten
54 Robert Sedgewick
55 Jon L. Bentley
56
57 For more information on these sources, see the manual.
58 --*/
59
60 void f (long *limit, long *base, long minLen, long maxLen) __attribute__ ((__noinline__));
f(long * limit,long * base,long minLen,long maxLen)61 void f (long *limit, long *base, long minLen, long maxLen)
62 {
63 long i;
64 long vec;
65 vec = 0;
66 for (i = minLen; i <= maxLen; i++) {
67 vec += (base[i+1] - base[i]);
68 limit[i] = vec-1;
69 }
70 }
71 extern void abort (void);
72 extern void exit (int);
73 long b[] = {1, 5, 11, 23};
main(void)74 int main (void)
75 {
76 long l[3];
77 f (l, b, 0, 2);
78 if (l[0] != 3 || l[1] != 9 || l[2] != 21)
79 abort ();
80 exit (0);
81 }
82