Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/tree-ssa/alias-19.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 |
|---|---|
| 1 /* { dg-do run } */ | |
| 2 /* { dg-options "-O2 -fdump-tree-alias" } */ | |
| 3 | |
| 4 const static int a; | |
| 5 | |
| 6 int __attribute__((noinline)) | |
| 7 foo(int i) | |
| 8 { | |
| 9 const int *q; | |
| 10 int b; | |
| 11 if (i) | |
| 12 q = &a; | |
| 13 else | |
| 14 q = &b; | |
| 15 b = 1; | |
| 16 /* We should not prune a from the points-to set of q. */ | |
| 17 return *q; | |
| 18 } | |
| 19 | |
| 20 extern void abort (void); | |
| 21 int main() | |
| 22 { | |
| 23 if (foo(1) != 0) | |
| 24 abort (); | |
| 25 return 0; | |
| 26 } | |
| 27 | |
| 28 /* { dg-final { scan-tree-dump "q_. = { a b }" "alias" } } */ |