| commit | f29f7f86935e29786bf9f976ec99d7639b381b14 | |
| author | Marek Polacek <polacek@redhat.com> | |
| Fri, 9 Feb 2024 17:03:50 +0000 (9 12:03 -0500) | ||
| committer | Marek Polacek <polacek@redhat.com> | |
| Fri, 9 Feb 2024 21:40:54 +0000 (9 16:40 -0500) | ||
| tree | b5c5b33af1b627e104ec6ee250ca2a4b844d2b86 | treesnapshot (tar.gz zip) |
| parent | 3a3e0f1b46a3ad71ebeedc419393e3a36f1ce6db | commitdiff |
c++: fix ICE with __type_pack_element [PR113834]
Here we crash on this invalid code because we seem to infinitely recurse
and end up with __type_pack_element with index that doesn't tree_fits_shwi_p
which then crashes on tree_to_shwi.
Thanks to Jakub for suggesting a nicer fix than my original one.
PR c++/113834
gcc/cp/ChangeLog:
* semantics.cc (finish_type_pack_element): Perform range checking
before tree_to_shwi.
gcc/testsuite/ChangeLog:
* g++.dg/ext/type_pack_element4.C: New test.
Here we crash on this invalid code because we seem to infinitely recurse
and end up with __type_pack_element with index that doesn't tree_fits_shwi_p
which then crashes on tree_to_shwi.
Thanks to Jakub for suggesting a nicer fix than my original one.
PR c++/113834
gcc/cp/ChangeLog:
* semantics.cc (finish_type_pack_element): Perform range checking
before tree_to_shwi.
gcc/testsuite/ChangeLog:
* g++.dg/ext/type_pack_element4.C: New test.
| gcc/cp/semantics.cc | diffblobblamehistory | |
| gcc/testsuite/g++.dg/ext/type_pack_element4.C | [new file with mode: 0644] | blob |