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| author | Bogdan Harjoc <harjoc@gmail.com> | 2018-08-03 15:25:35 +0000 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2018-08-03 16:25:35 +0100 |
| commit | e5e7e50d4f75749e3ad3af44d364ccfcb81ced9e (patch) | |
| tree | 976a94aedd0a8d55a01a8027541c47a938e0e252 /gcc/fortran/interface.c | |
| parent | d198fc5a69964c1d1cf55dd30d1696e531dc12d9 (diff) | |
| download | gcc-e5e7e50d4f75749e3ad3af44d364ccfcb81ced9e.zip gcc-e5e7e50d4f75749e3ad3af44d364ccfcb81ced9e.tar.gz gcc-e5e7e50d4f75749e3ad3af44d364ccfcb81ced9e.tar.bz2 | |
Avoid infinite loop with duplicate anonymous union fields (PR c/86690).
If a struct contains an anonymous union and both have a field with the
same name, detect_field_duplicates_hash() will replace one of them
with NULL. If compilation doesn't stop immediately, it may later call
lookup_field() on the union, which falsely assumes the union's
LANG_SPECIFIC array is sorted, and may loop indefinitely because of
this.
2018-08-03 Bogdan Harjoc <harjoc@gmail.com>
PR c/86690
gcc/c:
* c-typeck.c (lookup_field): Do not use TYPE_LANG_SPECIFIC after
errors.
gcc/testsuite:
* gcc.dg/union-duplicate-field.c: New test.
From-SVN: r263294
Diffstat (limited to 'gcc/fortran/interface.c')
0 files changed, 0 insertions, 0 deletions