https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66714
--- Comment #4 from vries at gcc dot gnu.org --- Created attachment 35890 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35890&action=edit patch to detect problem earlier Using this patch, we can trigger the problem earlier: ... In file included from src/libgomp/testsuite/libgomp.oacc-c/../libgomp.oacc-c-c++-common/pr66714.c:4:0: src/libgomp/testsuite/libgomp.oacc-c/../libgomp.oacc-c-c++-common/atomic_capture-1.c: In function ‘main._omp_fn.46’: src/libgomp/testsuite/libgomp.oacc-c/../libgomp.oacc-c-c++-common/atomic_capture-1.c:853:9: internal compiler error: in decl_value_expr_lookup, at tree.c:6773 0x11c902b decl_value_expr_lookup(tree_node*) src/gcc/tree.c:6773 0xa43cae instantiate_expr src/gcc/function.c:1851 0x11d914e walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*), void*, hash_set<tree_node*, default_hashset_traits>*, tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*), void*, hash_set<tree_node*, default_hashset_traits>*)) src/gcc/tree.c:11132 0xa43e5f instantiate_decls_1 src/gcc/function.c:1874 0xa443d2 instantiate_decls src/gcc/function.c:1922 0xa44874 instantiate_virtual_regs src/gcc/function.c:1979 0xa448da execute src/gcc/function.c:2015 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. ... The problem now also triggers without -g.
