32 lines
822 B
C
32 lines
822 B
C
/* { dg-do compile } */
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/* { dg-require-effective-target bswap } */
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/* { dg-options "-O2 -fno-tree-vectorize -fdump-tree-optimized -fno-inline-functions" } */
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/* { dg-additional-options "-march=z900" { target s390-*-* } } */
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struct L { unsigned int l[2]; };
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union U { double a; struct L l; } u;
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void
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foo (double a, struct L *p)
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{
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u.a = a;
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struct L l = u.l, m;
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m.l[0] = (((l.l[1] & 0xff000000) >> 24)
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| ((l.l[1] & 0x00ff0000) >> 8)
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| ((l.l[1] & 0x0000ff00) << 8)
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| ((l.l[1] & 0x000000ff) << 24));
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m.l[1] = (((l.l[0] & 0xff000000) >> 24)
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| ((l.l[0] & 0x00ff0000) >> 8)
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| ((l.l[0] & 0x0000ff00) << 8)
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| ((l.l[0] & 0x000000ff) << 24));
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*p = m;
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}
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void
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bar (double a, struct L *p)
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{
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foo (a, p);
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}
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/* { dg-final { scan-tree-dump-times "= __builtin_bswap32 \\\(" 2 "optimized" } } */
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