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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O3 -fdisable-tree-evrp -fdisable-tree-cunrolli -fdisable-tree-vrp1 -fdump-tree-cunroll-blocks-details" } */
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3
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4 #if __SIZEOF_INT__ < 4
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5 __extension__ typedef __INT32_TYPE__ i32;
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6 #else
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7 typedef int i32;
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8 #endif
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9
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10 struct a {int a[8];int b;};
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11 void
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12 t(struct a *a)
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13 {
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14 for (i32 i=0;i<123456 && a->a[i];i++)
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15 a->a[i]++;
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16 }
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17 /* This pass relies on the fact that we do not eliminate the redundant test for i early.
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18 It is necessary to disable all passes that do so. At the moment it is evrp, vrp1 and cunrolli. */
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19 /* { dg-final { scan-tree-dump-times "Loop 1 iterates 123454 times" 1 "cunroll" } } */
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20 /* { dg-final { scan-tree-dump-times "Last iteration exit edge was proved true" 1 "cunroll" } } */
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21 /* { dg-final { scan-tree-dump-times "Exit condition of peeled iterations was eliminated" 1 "cunroll" } } */
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22 /* { dg-final { scan-tree-dump-times "loop with 7 iterations completely unrolled" 1 "cunroll" } } */
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23 /* { dg-final { scan-tree-dump-not "Invalid sum" "cunroll" } } */
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