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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O3 -fdump-rtl-loop2_unroll -funroll-loops" } */
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3 /* { dg-require-effective-target int32plus } */
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4
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5 void abort (void);
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6 int *a;
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7 /* Fails on MIPS16 because equality checks are implemented using XOR.
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8 It's unlikely MIPS16 users would want unrolling anyway. */
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9 #ifdef __mips
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10 __attribute__((nomips16))
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11 #endif
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12 int t()
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13 {
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14 int i;
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15 for (i=0;i<1000000;i++)
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16 if (a[i])
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17 return 1;
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18 return 0;
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19 }
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20 #ifdef __mips
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21 __attribute__((nomips16))
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22 #endif
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23 int t2()
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24 {
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25 int i;
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26 for (i=0;i<3000000;i++)
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27 if (a[i])
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28 abort ();
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29 return 0;
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30 }
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31 /* { dg-final { scan-rtl-dump-times " upper bound: 999999" 1 "loop2_unroll" } } */
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32 /* { dg-final { scan-rtl-dump-not "realistic bound: 999999" "loop2_unroll" } } */
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33 /* { dg-final { scan-rtl-dump-times " upper bound: 2999999" 1 "loop2_unroll" } } */
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34 /* { dg-final { scan-rtl-dump-times "realistic bound: 2999999" 1 "loop2_unroll" } } */
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