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jeremybenn |
/* PR rtl-optimization/20527
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Mishandled postincrement. This test-case is derived from the
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function BZ2_hbCreateDecodeTables in the file huffman.c from
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bzip2-1.0.2, hence requiring the following disclaimer copied here: */
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/*--
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This file is a part of bzip2 and/or libbzip2, a program and
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library for lossless, block-sorting data compression.
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Copyright (C) 1996-2002 Julian R Seward. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. The origin of this software must not be misrepresented; you must
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not claim that you wrote the original software. If you use this
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software in a product, an acknowledgment in the product
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documentation would be appreciated but is not required.
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3. Altered source versions must be plainly marked as such, and must
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not be misrepresented as being the original software.
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4. The name of the author may not be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Julian Seward, Cambridge, UK.
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jseward@acm.org
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bzip2/libbzip2 version 1.0 of 21 March 2000
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This program is based on (at least) the work of:
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Mike Burrows
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David Wheeler
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Peter Fenwick
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Alistair Moffat
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Radford Neal
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Ian H. Witten
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Robert Sedgewick
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Jon L. Bentley
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For more information on these sources, see the manual.
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--*/
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void f (long *limit, long *base, long minLen, long maxLen) __attribute__ ((__noinline__));
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void f (long *limit, long *base, long minLen, long maxLen)
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{
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long i;
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long vec;
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vec = 0;
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for (i = minLen; i <= maxLen; i++) {
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vec += (base[i+1] - base[i]);
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limit[i] = vec-1;
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}
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}
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extern void abort (void);
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extern void exit (int);
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long b[] = {1, 5, 11, 23};
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int main (void)
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{
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long l[3];
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f (l, b, 0, 2);
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if (l[0] != 3 || l[1] != 9 || l[2] != 21)
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abort ();
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exit (0);
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}
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