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-rw-r--r--gcc/omp-low.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index ddb049d3ea1..67254cc5bdf 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -1509,11 +1509,19 @@ scan_sharing_clauses (tree clauses, omp_context *ctx)
break;
case OMP_CLAUSE_SHARED:
+ decl = OMP_CLAUSE_DECL (c);
/* Ignore shared directives in teams construct. */
if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS)
- break;
+ {
+ /* Global variables don't need to be copied,
+ the receiver side will use them directly. */
+ tree odecl = maybe_lookup_decl_in_outer_ctx (decl, ctx);
+ if (is_global_var (odecl))
+ break;
+ insert_decl_map (&ctx->cb, decl, odecl);
+ break;
+ }
gcc_assert (is_taskreg_ctx (ctx));
- decl = OMP_CLAUSE_DECL (c);
gcc_assert (!COMPLETE_TYPE_P (TREE_TYPE (decl))
|| !is_variable_sized (decl));
/* Global variables don't need to be copied,