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131
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1 /* PR c++/83871 - wrong code for attribute const and pure on distinct
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2 template specializations
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3 Test to verify that attributes noreturn on multiple declarations of
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4 the same function are merged.
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5 { dg-do compile }
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6 { dg-options "-O -fdump-tree-optimized" } */
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7
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8 int __attribute__ ((noreturn)) fnoreturn ();
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9
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10 void fnoreturn_failed ();
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11
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12 int test_noreturn () throw ()
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13 {
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14 fnoreturn ();
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15 fnoreturn_failed ();
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16 // Verify that the call to fnoreturn_failed() is eliminated.
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17 // { dg-final { scan-tree-dump-not "fnoreturn_failed" "optimized" } }
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18
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19 // Expect no -Wreturn-type warning despite the absence of a return
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20 // statement in a non-void function.
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21 }
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22
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23
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24 int __attribute__ ((noreturn)) fnoreturn_none ();
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25 int fnoreturn_none ();
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26
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27 void fnoreturn_none_failed ();
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28
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29
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30 int test_noreturn_none ()
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31 {
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32 fnoreturn_none ();
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33 fnoreturn_none_failed ();
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34 // { dg-final { scan-tree-dump-not "fnoreturn_none_failed" "optimized" } }
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35 }
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36
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37 int fnone_noreturn ();
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38 int __attribute__ ((noreturn)) fnone_noreturn ();
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39
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40 void fnone_noreturn_failed ();
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41
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42 int test_none_noreturn () throw ()
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43 {
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44 fnone_noreturn ();
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45 fnone_noreturn_failed ();
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46 // { dg-final { scan-tree-dump-not "fnone_noreturn_failed" "optimized" } }
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47 }
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