34 lines
711 B
C
34 lines
711 B
C
/* { dg-do compile } */
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/* { dg-options "-O -fno-tree-sra -fdump-tree-fre-details" } */
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#if (__SIZEOF_INT__ == __SIZEOF_FLOAT__)
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typedef int intflt;
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#elif (__SIZEOF_LONG__ == __SIZEOF_FLOAT__)
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typedef long intflt;
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#else
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#error Add target support here for type that will union float size
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#endif
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union U {
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intflt i;
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float f;
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};
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intflt foo(int i, int b)
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{
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union U u;
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if (b)
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{
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i = i << 2;
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u.i = i;
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return u.f;
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}
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else
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{
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i = i << 2;
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u.i = i;
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return u.f;
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}
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}
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/* { dg-final { scan-tree-dump-times "Replaced u.f with pretmp" 2 "fre" } } */
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/* { dg-final { scan-tree-dump-times "Inserted pretmp" 2 "fre" } } */
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/* { dg-final { cleanup-tree-dump "fre" } } */
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