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| author | Jason Merrill <jason@redhat.com> | 2020-01-19 09:14:54 -0500 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2020-01-19 13:56:22 -0500 |
| commit | bcfc2227c556f2801a657ce3007374732baa8333 (patch) | |
| tree | dc5c76be5ccee189500336763b3b157b7942ac47 /libcpp/errors.c | |
| parent | 303484a73541ea7f41dff0238157924e49c255ff (diff) | |
| download | gcc-bcfc2227c556f2801a657ce3007374732baa8333.zip gcc-bcfc2227c556f2801a657ce3007374732baa8333.tar.gz gcc-bcfc2227c556f2801a657ce3007374732baa8333.tar.bz2 | |
PR c++/33799 - destroy return value, take 2.
This patch differs from the reverted patch for 33799 in that it adds the
CLEANUP_STMT for the return value at the end of the function, and only if
we've seen a cleanup that might throw, so it should not affect most C++11
code.
* cp-tree.h (current_retval_sentinel): New macro.
(struct language_function): Add throwing_cleanup bitfield.
* decl.c (cxx_maybe_build_cleanup): Set it.
* except.c (maybe_set_retval_sentinel)
(maybe_splice_retval_cleanup): New functions.
* parser.c (cp_parser_compound_statement): Call
maybe_splice_retval_cleanup.
* typeck.c (check_return_expr): Call maybe_set_retval_sentinel.
Diffstat (limited to 'libcpp/errors.c')
0 files changed, 0 insertions, 0 deletions