https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116107
--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Tobias Burnus <bur...@gcc.gnu.org>: https://gcc.gnu.org/g:14c47e7eb06e8b95913794f6059560fc2fa6de91 commit r15-2377-g14c47e7eb06e8b95913794f6059560fc2fa6de91 Author: Tobias Burnus <tbur...@baylibre.com> Date: Mon Jul 29 11:40:38 2024 +0200 libgomp: Fix declare target link with offset array-section mapping [PR116107] Assume that 'int var[100]' is 'omp declare target link(var)'. When now mapping an array section with offset such as 'map(to:var[20:10])', the device-side link pointer has to store &<device-storage-data>[0] minus the offset such that var[20] will access <device-storage-data>[0]. But the offset calculation was missed such that the device-side 'var' pointed to the first element of the mapped data - and var[20] points beyond at some invalid memory. PR middle-end/116107 libgomp/ChangeLog: * target.c (gomp_map_vars_internal): Honor array mapping offsets with declare-target 'link' variables. * testsuite/libgomp.c-c++-common/target-link-2.c: New test.
