diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/opt/thunk1.C')
-rw-r--r-- | gcc/testsuite/g++.dg/opt/thunk1.C | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/thunk1.C b/gcc/testsuite/g++.dg/opt/thunk1.C new file mode 100644 index 000000000..566c0f2fc --- /dev/null +++ b/gcc/testsuite/g++.dg/opt/thunk1.C @@ -0,0 +1,42 @@ +// PR 6788 +// Test that the thunk adjusts the this pointer properly. +// { dg-do run } + +extern "C" void abort (); + +struct A +{ + virtual void foo() = 0; + char large[33*1024]; +}; + +struct B +{ + virtual void foo() = 0; +}; + +struct C : public A, public B +{ + virtual void foo(); +}; + +static C *match; + +void C::foo() +{ + if (this != match) + abort (); +} + +void bar(B *x) +{ + x->foo(); +} + +int main() +{ + C obj; + match = &obj; + bar(&obj); + return 0; +} |