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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O -fno-tree-sra -fdump-tree-fre1-details" } */
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3 #if (__SIZEOF_INT__ == __SIZEOF_FLOAT__)
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4 typedef int intflt;
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5 #elif (__SIZEOF_LONG__ == __SIZEOF_FLOAT__)
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6 typedef long intflt;
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7 #else
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8 #error Add target support here for type that will union float size
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9 #endif
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10 union U {
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11 intflt i;
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12 float f;
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13 };
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14 intflt foo(int i, int b)
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15 {
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16 union U u;
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17 if (b)
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18 {
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19 i = i << 2;
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20 u.i = i;
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21 return u.f;
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22 }
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23 else
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24 {
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25 i = i << 2;
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26 u.i = i;
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27 return u.f;
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28 }
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29 }
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30
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31 /* { dg-final { scan-tree-dump-times "Replaced u.f with" 2 "fre1" } } */
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32 /* { dg-final { scan-tree-dump-times "Inserted" 2 "fre1" } } */
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