Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/localalias.c @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 /* This test checks that local aliases behave sanely. This is necessary for code correctness | |
| 2 of aliases introduced by ipa-visibility pass. | |
| 3 | |
| 4 If this test fails either aliases needs to be disabled on given target on aliases with | |
| 5 proper semantic needs to be implemented. This is problem with e.g. AIX .set pseudo-op | |
| 6 that implementes alias syntactically (by substituting in assembler) rather as alternative | |
| 7 symbol defined on a target's location. */ | |
| 8 | |
| 9 /* { dg-do run } | |
| 10 { dg-options "-Wstrict-aliasing=2 -fstrict-aliasing" } | |
| 11 { dg-require-alias "" } | |
| 12 { dg-additional-sources "localalias-2.c" } */ | |
| 13 extern void abort (void); | |
| 14 extern void tt (void); | |
| 15 extern int test2count; | |
| 16 int testcount; | |
| 17 __attribute__ ((weak,noinline)) | |
| 18 void test(void) | |
| 19 { | |
| 20 testcount++; | |
| 21 } | |
| 22 __attribute ((alias("test"))) | |
| 23 static void test2(void); | |
| 24 | |
| 25 int main() | |
| 26 { | |
| 27 test2(); | |
| 28 /* This call must bind locally. */ | |
| 29 if (!testcount) | |
| 30 abort (); | |
| 31 test(); | |
| 32 /* Depending on linker choice, this one may bind locally | |
| 33 or to the other unit. */ | |
| 34 if (!testcount && !test2count) | |
| 35 abort(); | |
| 36 tt(); | |
| 37 | |
| 38 if ((testcount != 1 || test2count != 3) | |
| 39 && (testcount != 3 || test2count != 1)) | |
| 40 abort (); | |
| 41 return 0; | |
| 42 } |