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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O2 -fno-early-inlining -fdump-ipa-cp -fdump-tree-optimized" } */
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3 /* { dg-skip-if "No alignment restrictions" { { ! natural_alignment_32 } && { ! natural_alignment_64 } } } */
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4
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5 #include <stdint.h>
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6
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7 extern int fail_the_test(void *);
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8 extern int pass_the_test(void *);
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9 extern int diversion (void *);
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10
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11 struct somestruct
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12 {
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13 void *whee;
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14 void *oops;
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15 };
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16
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17 struct container
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18 {
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19 struct somestruct first;
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20 struct somestruct buf[32];
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21 };
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22
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23 static int __attribute__((noinline))
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24 foo (void *p)
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25 {
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26 uintptr_t a = (uintptr_t) p;
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27
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28 if (a % 4)
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29 return fail_the_test (p);
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30 else
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31 return pass_the_test (p);
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32 }
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33
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34 int
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35 bar (void)
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36 {
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37 struct container c;
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38 return foo (c.buf);
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39 }
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40
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41
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42 static int
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43 through (struct somestruct *p)
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44 {
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45 diversion (p);
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46 return foo (&p[16]);
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47 }
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48
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49 int
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50 bar2 (void)
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51 {
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52 struct container c;
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53 through (c.buf);
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54 }
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55
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56 /* { dg-final { scan-ipa-dump "Adjusting align" "cp" } } */
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57 /* { dg-final { scan-tree-dump-not "fail_the_test" "optimized" } } */
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