From 94fdf99db022bc426a4d27a5aef89a093bb3cffc Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 25 May 2002 19:40:46 -0700 Subject: [PATCH] New test for pr 6788 From-SVN: r53881 --- gcc/testsuite/g++.dg/opt/thunk1.C | 42 +++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 gcc/testsuite/g++.dg/opt/thunk1.C diff --git a/gcc/testsuite/g++.dg/opt/thunk1.C b/gcc/testsuite/g++.dg/opt/thunk1.C new file mode 100644 index 00000000000..566c0f2fcc5 --- /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; +} -- 2.30.2