diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2010-06-28 20:12:31 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2010-06-28 20:12:31 +0000 |
| commit | 3c5ccb087815ddf164ac15d171c89e99d21c9427 (patch) | |
| tree | c00bf543a7eedf3f42f7af7797029b41da913d09 | |
| parent | 6203f4a70b49a46fc79c67108eb0205107e6f964 (diff) | |
PR c++/44682
* class.c (build_base_path): If want_pointer, call mark_rvalue_use
on expr.
* g++.dg/warn/Wunused-var-14.C: New test.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@161511 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/class.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/warn/Wunused-var-14.C | 17 |
4 files changed, 30 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 3b5f1bd82de..a7df7b8b1c6 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2010-06-28 Jakub Jelinek <jakub@redhat.com> + + PR c++/44682 + * class.c (build_base_path): If want_pointer, call mark_rvalue_use + on expr. + 2010-06-28 Steven Bosscher <steven@gcc.gnu.org> * init.c: Do not include except.h. diff --git a/gcc/cp/class.c b/gcc/cp/class.c index f945923ddc4..51f749f61b0 100644 --- a/gcc/cp/class.c +++ b/gcc/cp/class.c @@ -283,6 +283,8 @@ build_base_path (enum tree_code code, if (!want_pointer) /* This must happen before the call to save_expr. */ expr = cp_build_unary_op (ADDR_EXPR, expr, 0, tf_warning_or_error); + else + mark_rvalue_use (expr); offset = BINFO_OFFSET (binfo); fixed_type_p = resolves_to_fixed_type_p (expr, &nonnull); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 5f0ea3fbd1e..e3558942969 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2010-06-28 Jakub Jelinek <jakub@redhat.com> + + PR c++/44682 + * g++.dg/warn/Wunused-var-14.C: New test. + 2010-06-28 Tobias Burnus <burnus@net-b.de> PR fortran/43298 diff --git a/gcc/testsuite/g++.dg/warn/Wunused-var-14.C b/gcc/testsuite/g++.dg/warn/Wunused-var-14.C new file mode 100644 index 00000000000..a552b56dad1 --- /dev/null +++ b/gcc/testsuite/g++.dg/warn/Wunused-var-14.C @@ -0,0 +1,17 @@ +// PR c++/44682 +// { dg-do compile } +// { dg-options "-Wunused" } + +struct S { virtual ~S () {} }; +struct T { virtual ~T () {} }; +struct U : S, T {}; + +void f (U &); + +void +g (void *v) +{ + T *t = static_cast <T *> (v); + U *u = static_cast <U *> (t); + f (*u); +} |