This is a series of patches to support deep struct dereferences for OpenMP 5.0 (i.e. with multiple arrow operators, "a->b[foo]->c[lo:hi]"). Apart from a couple of general bug fixes, the main parts of this comprise:
1. Topological sorting of OMP clauses by base pointer dependencies. 2. Hoisting of struct sibling list handling out of gimplify_scan_omp_clauses. These patches replace and continue from the last part of the previously-posted series: https://gcc.gnu.org/pipermail/gcc-patches/2021-August/577219.html and (still) depend on the parts of 1 through 7 of that series. The patches have been bootstrapped & regression tested individually with offloading to NVPTX (though some prior to the most recent rebase). OK? Thanks, Julian Julian Brown (11): libgomp: Release device lock on cbuf error path Remove base_ind/base_ref handling from extract_base_bit_offset OpenMP 5.0: Clause ordering for OpenMP 5.0 (topological sorting by base pointer) Remove omp_target_reorder_clauses OpenMP/OpenACC: Hoist struct sibling list handling in gimplification OpenMP: Allow array ref components for C & C++ OpenMP: Fix non-zero attach/detach bias for struct dereferences Not for committing: noisy topological sorting output Not for committing: noisy sibling-list handling output Not for committing: noisy mapping-group taxonomy OpenMP/OpenACC: [WIP] Add gcc_unreachable to apparently-dead path in build_struct_comp_nodes gcc/c-family/c-common.h | 1 + gcc/c-family/c-omp.c | 42 + gcc/c/c-typeck.c | 15 +- gcc/cp/semantics.c | 17 +- gcc/gimplify.c | 2479 ++++++++++++----- gcc/omp-low.c | 7 +- gcc/testsuite/g++.dg/goacc/member-array-acc.C | 2 +- gcc/testsuite/g++.dg/gomp/target-3.C | 4 +- gcc/testsuite/g++.dg/gomp/target-lambda-1.C | 6 +- gcc/testsuite/g++.dg/gomp/target-this-2.C | 2 +- gcc/testsuite/g++.dg/gomp/target-this-3.C | 4 +- gcc/testsuite/g++.dg/gomp/target-this-4.C | 4 +- libgomp/target.c | 5 +- libgomp/testsuite/libgomp.c++/baseptrs-3.C | 182 ++ .../libgomp.c-c++-common/baseptrs-1.c | 50 + .../libgomp.c-c++-common/baseptrs-2.c | 70 + 16 files changed, 2151 insertions(+), 739 deletions(-) create mode 100644 libgomp/testsuite/libgomp.c++/baseptrs-3.C create mode 100644 libgomp/testsuite/libgomp.c-c++-common/baseptrs-1.c create mode 100644 libgomp/testsuite/libgomp.c-c++-common/baseptrs-2.c -- 2.29.2