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111
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1 /* { dg-do compile } */
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131
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2 /* { dg-options "-O1 -fdump-tree-phicprop1" } */
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111
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3
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4 extern void abort (void);
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5 extern void blah (void);
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6 union tree_node;
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7 typedef union tree_node *tree;
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8 struct tree_vec
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9 {
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10 int length;
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11 tree a[1];
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12 };
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13 struct tree_type
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14 {
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15 tree binfo;
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16 };
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17 union tree_node
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18 {
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19 struct tree_type type;
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20 struct tree_vec vec;
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21 };
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22 void
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23 record_component_aliases (type)
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24 tree type;
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25 {
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26 if (type->type.binfo->vec.length)
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27 abort ();
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28 for (; ((
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29 {
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30 const tree __z = type->type.binfo;
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31 if (type->type.binfo->vec.length)
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32 abort ();
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33 type->type.binfo->vec.a[4];}
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34 )->vec.length);)
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35 {
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36 if (4 >= type->type.binfo->vec.length)
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37 abort ();
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38 blah ();
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39 }
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40 }
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41
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42 /* The call to blah should have been eliminated. If the call is not
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43 eliminated, then dominator optimizations failed and it'll be
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44 impossible to delete other unnecessary code. */
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131
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45 /* { dg-final { scan-tree-dump-not "blah \\(\\)" "phicprop1" } } */
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111
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46
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47 /* There should be two IF conditionals. */
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131
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48 /* { dg-final { scan-tree-dump-times "if " 2 "phicprop1"} } */
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111
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49
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50 /* There should be a single load of type.binfo. */
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131
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51 /* { dg-final { scan-tree-dump-times "type\\.binfo" 1 "phicprop1"} } */
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111
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52
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53 /* There should be two loads of vec.length. */
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131
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54 /* { dg-final { scan-tree-dump-times "vec.length" 2 "phicprop1"} } */
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111
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55
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