@@ -1857,9 +1857,11 @@ scan_omp_task (gimple_stmt_iterator *gsi
tree name, t;
gomp_task *stmt = as_a <gomp_task *> (gsi_stmt (*gsi));
- /* Ignore task directives with empty bodies. */
+ /* Ignore task directives with empty bodies, unless they have depend
+ clause. */
if (optimize > 0
- && empty_body_p (gimple_omp_body (stmt)))
+ && empty_body_p (gimple_omp_body (stmt))
+ && !omp_find_clause (gimple_omp_task_clauses (stmt), OMP_CLAUSE_DEPEND))
{
gsi_replace (gsi, gimple_build_nop (), false);
return;
@@ -0,0 +1,22 @@
+/* PR libgomp/80394 */
+
+int
+main ()
+{
+ int x = 0;
+ #pragma omp parallel shared(x)
+ #pragma omp single
+ {
+ #pragma omp task depend(inout: x)
+ {
+ for (int i = 0; i < 100000; i++)
+ asm volatile ("" : : : "memory");
+ x += 5;
+ }
+ #pragma omp task if (0) depend(inout: x)
+ ;
+ if (x != 5)
+ __builtin_abort ();
+ }
+ return 0;
+}