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| author | varconst <varconsteq@gmail.com> | 2023-07-12 10:11:09 -0700 |
|---|---|---|
| committer | varconst <varconsteq@gmail.com> | 2023-07-12 10:11:26 -0700 |
| commit | d0b51657c259365750b3aada3bae23f19c96fdbc (patch) | |
| tree | a4cf8f31b1b04a1983156b3591a4d15eb7e299d7 /llvm/lib/CodeGen/CommandFlags.cpp | |
| parent | 345f8699c7ce8e492899147a7f0519769af7ec35 (diff) | |
| download | llvm-d0b51657c259365750b3aada3bae23f19c96fdbc.zip llvm-d0b51657c259365750b3aada3bae23f19c96fdbc.tar.gz llvm-d0b51657c259365750b3aada3bae23f19c96fdbc.tar.bz2 | |
[libc++] Fix an exception safety issue in `forward_list` and add tests.
When inserting nodes into a forward list, each new node is allocated but
not constructed. The constructor was being called explicitly on the node
`value_` but the `next_` pointer remained uninitialized rather than
being set to null. This bug is only triggered in the cleanup code if an
exception is thrown -- upon successful creation of new nodes, the last
incorrect "next" value is overwritten to a correct pointer.
This issue was found due to new tests added in
https://reviews.llvm.org/D149830.
Differential Revision: https://reviews.llvm.org/D152327
Diffstat (limited to 'llvm/lib/CodeGen/CommandFlags.cpp')
0 files changed, 0 insertions, 0 deletions