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HEAD
Imported Upstream version 2.9.0
[debian/cc1111]
/
support
/
regression
/
tests
/
arithcse.c
1
/* Test arithmetic CSE with /+-*
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type: char, short, long
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attr: volatile,
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*/
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#include <testfwk.h>
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void
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test_arithCse(void)
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{
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{attr} {type} res;
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{attr} {type} i = 10;
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/* addition with 0 */
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res = i + 0;
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ASSERT (i == 10);
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res = 0 + i;
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ASSERT (res == 10);
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/* multiplication with 1 */
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res = 1 * i;
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ASSERT (res == 10);
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res = i * 1;
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ASSERT (res == 10);
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/* multiplication with 0 */
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res = 0 * i;
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ASSERT (res == 0);
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res = i * 0;
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ASSERT (res == 0);
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/* multiplication with -1 */
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res = -1 * i;
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ASSERT (res == -i);
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res = i * -1;
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ASSERT (res == -i);
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/* division by 1 */
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res = i / 1;
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ASSERT (res == i);
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/* division by -1 */
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res = i / -1;
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ASSERT (res == -i);
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}