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111
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1 /* This test checks that local aliases behave sanely. This is necessary for code correctness
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2 of aliases introduced by ipa-visibility pass.
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3
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4 If this test fails either aliases needs to be disabled on given target on aliases with
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5 proper semantic needs to be implemented. This is problem with e.g. AIX .set pseudo-op
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6 that implementes alias syntactically (by substituting in assembler) rather as alternative
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7 symbol defined on a target's location. */
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8
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9 /* { dg-do run }
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10 { dg-options "-Wstrict-aliasing=2 -fstrict-aliasing" }
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11 { dg-require-alias "" }
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12 { dg-additional-sources "localalias-2.c" } */
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13 extern void abort (void);
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14 extern void tt (void);
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15 extern int test2count;
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16 int testcount;
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17 __attribute__ ((weak,noinline))
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18 void test(void)
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19 {
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20 testcount++;
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21 }
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22 __attribute ((alias("test")))
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23 static void test2(void);
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24
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25 int main()
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26 {
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27 test2();
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28 /* This call must bind locally. */
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29 if (!testcount)
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30 abort ();
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31 test();
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32 /* Depending on linker choice, this one may bind locally
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33 or to the other unit. */
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34 if (!testcount && !test2count)
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35 abort();
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36 tt();
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37
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38 if ((testcount != 1 || test2count != 3)
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39 && (testcount != 3 || test2count != 1))
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40 abort ();
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41 return 0;
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42 }
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