On Tue, 17 Sep 2024, Martin Uecker wrote: > Here is a fix for a mistake I made when recursively checking for > type compatibility. > > > Bootstrapped and regression tested on x86-64. > > > c: fix crash when checking for compatibility of structures [PR116726] > > When checking for compatibility of structure or union types in > tagged_types_tu_compatible_p, restore the old value of the pointer to > the top of the temporary cache after recursively calling > comptypes_internal > when looping over the members of a structure of union. While the next > iteration of the loop overwrites the pointer, I missed the fact that it > can > be accessed again when types of function arguments are compared as part > of recursive type checking and the function is entered again. > > PR c/116726 > > gcc/Changelog: > * c/c-typeck.cc (tagged_types_tu_compatible_p): Restore value > of the cache after recursing into comptypes_internal. > > gcc/testsuite/Changelog: > * pr116726.c: New test.
OK. -- Joseph S. Myers josmy...@redhat.com
