diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/tree-ssa/pr21407.C')
| -rw-r--r-- | gcc/testsuite/g++.dg/tree-ssa/pr21407.C | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/tree-ssa/pr21407.C b/gcc/testsuite/g++.dg/tree-ssa/pr21407.C new file mode 100644 index 000000000..561dc707a --- /dev/null +++ b/gcc/testsuite/g++.dg/tree-ssa/pr21407.C @@ -0,0 +1,8 @@ +/* { dg-do run } */ +/* { dg-options "-O2" } */ +extern "C" void abort(void); +struct T1 {int a, b; virtual void f(){}}; +struct T : T1 { struct T1 w; int b; }; +void foo (struct T1 *p) { struct T *q = dynamic_cast<T*>(p); if (q->b != 2) abort (); } +/* We shouldn't kill the store to c.b, because foo uses it. */ +int main () { struct T c; c.b = 2; foo (&c); return 0; } |