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111
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1 /* { dg-do compile } */
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2 /* { dg-require-effective-target bswap32 } */
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3 /* { dg-options "-O2 -fdump-tree-bswap" } */
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4 /* { dg-additional-options "-march=z900" { target s390-*-* } } */
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5
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6 struct L { unsigned int l[2]; };
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7 union U { double a; struct L l; } u;
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8
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9 void
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10 foo (double a, struct L *p)
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11 {
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12 u.a = a;
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13 struct L l = u.l, m;
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14 m.l[0] = (((l.l[1] & 0xff000000) >> 24)
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15 | ((l.l[1] & 0x00ff0000) >> 8)
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16 | ((l.l[1] & 0x0000ff00) << 8)
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17 | ((l.l[1] & 0x000000ff) << 24));
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18 m.l[1] = (((l.l[0] & 0xff000000) >> 24)
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19 | ((l.l[0] & 0x00ff0000) >> 8)
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20 | ((l.l[0] & 0x0000ff00) << 8)
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21 | ((l.l[0] & 0x000000ff) << 24));
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22 *p = m;
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23 }
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24
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25 void
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26 bar (double a, struct L *p)
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27 {
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28 foo (a, p);
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29 }
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30
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31 /* { dg-final { scan-tree-dump-times "32 bit bswap implementation found at" 2 "bswap" } } */
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