diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -2057,6 +2057,22 @@
                         "-DLLVM_USE_LINKER=lld",
                     ])},
 
+    {'name' : "flang-aarch64-debug-reverse-iteration",
+    'tags'  : ["flang", "rev_iter"],
+    'workernames' : ["linaro-flang-aarch64-debug-reverse-iteration"],
+    'builddir': "flang-aarch64-debug-reverse-iteration",
+    'factory' : UnifiedTreeBuilder.getCmakeWithNinjaBuildFactory(
+                    clean=True,
+                    checks=['check-flang'],
+                    depends_on_projects=['llvm','mlir','clang','flang'],
+                    extra_configure_args=[
+                        "-DLLVM_TARGETS_TO_BUILD=AArch64",
+                        "-DCMAKE_BUILD_TYPE=Debug",
+                        "-DCMAKE_CXX_STANDARD=17",
+                        "-DLLVM_USE_LINKER=lld",
+                        "-DLLVM_REVERSE_ITERATION:BOOL=ON",
+                    ])},
+
     {'name' : "flang-aarch64-latest-clang",
     'tags'  : ['flang'],
     'workernames' : ["linaro-flang-aarch64-latest-clang"],
diff --git a/buildbot/osuosl/master/config/workers.py b/buildbot/osuosl/master/config/workers.py
--- a/buildbot/osuosl/master/config/workers.py
+++ b/buildbot/osuosl/master/config/workers.py
@@ -32,6 +32,7 @@
         create_worker("linaro-flang-aarch64-sharedlibs", properties={'jobs' : 32}, max_builds=1),
         create_worker("linaro-flang-aarch64-out-of-tree", properties={'jobs' : 32}, max_builds=1),
         create_worker("linaro-flang-aarch64-debug", properties={'jobs' : 32}, max_builds=1),
+        create_worker("linaro-flang-aarch64-debug-reverse-iteration", properties={'jobs' : 32}, max_builds=1),
         create_worker("linaro-flang-aarch64-latest-clang", properties={'jobs' : 32}, max_builds=1),
         create_worker("linaro-flang-aarch64-release", properties={'jobs' : 32}, max_builds=1),
         create_worker("linaro-flang-aarch64-rel-assert", properties={'jobs' : 32}, max_builds=1),