Mercurial > hg > CbC > CbC_gcc

annotate gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-19.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O2 -fdump-tree-pre-stats" } */
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3
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4 struct Loc {
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5 int x[3];
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6 };
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7
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8 void bar (struct Loc *);
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9
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10 int foo (int i, int j, int k, int b)
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11 {
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12 struct Loc IND;
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13 int res;
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14
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15 if (b)
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16 {
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17 IND.x[0] = i;
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18 IND.x[1] = j;
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19 IND.x[2] = k-1;
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20 }
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21 else
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22 {
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23 IND.x[0] = i;
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24 IND.x[1] = j;
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25 IND.x[2] = k;
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26 }
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27
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28 /* This should be optimized to i + j + {k, k + 1}. */
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29 res = IND.x[0] + IND.x[1] + IND.x[2];
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30
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31 /* This is just to prevent SRA. */
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32 bar (&IND);
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33
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34 return res;
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35 }
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36
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37 /* All three loads should be eliminated. */
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38 /* { dg-final { scan-tree-dump "Eliminated: 3" "pre" } } */