diff --git a/flang/lib/Lower/ConvertVariable.cpp b/flang/lib/Lower/ConvertVariable.cpp
index f76d44f5479d3..4155a1282d8e0 100644
--- a/flang/lib/Lower/ConvertVariable.cpp
+++ b/flang/lib/Lower/ConvertVariable.cpp
@@ -46,10 +46,10 @@
 #include "llvm/Support/Debug.h"
 #include <optional>
 
-static llvm::cl::opt<bool> allowAssumedRank(
-    "allow-assumed-rank",
-    llvm::cl::desc("Enable assumed rank lowering - experimental"),
-    llvm::cl::init(false));
+static llvm::cl::opt<bool>
+    allowAssumedRank("allow-assumed-rank",
+                     llvm::cl::desc("Enable assumed rank lowering"),
+                     llvm::cl::init(true));
 
 #define DEBUG_TYPE "flang-lower-variable"
 
diff --git a/flang/test/Lower/HLFIR/assumed-rank-calls.f90 b/flang/test/Lower/HLFIR/assumed-rank-calls.f90
index afb2bbac99891..63b8d9fd81f33 100644
--- a/flang/test/Lower/HLFIR/assumed-rank-calls.f90
+++ b/flang/test/Lower/HLFIR/assumed-rank-calls.f90
@@ -1,7 +1,7 @@
 ! Test passing of assumed-ranks that require creating a
 ! a new descriptor for the dummy argument (different lower bounds,
 ! attribute, or dynamic type)
-! RUN: bbc -emit-hlfir -allow-assumed-rank -o - %s | FileCheck %s
+! RUN: bbc -emit-hlfir -o - %s | FileCheck %s
 
 subroutine test_alloc_to_nonalloc(x)
   real, allocatable ::  x(..)
diff --git a/flang/test/Lower/HLFIR/assumed-rank-entry.f90 b/flang/test/Lower/HLFIR/assumed-rank-entry.f90
index 9928f5459f71f..9ac56c4282f87 100644
--- a/flang/test/Lower/HLFIR/assumed-rank-entry.f90
+++ b/flang/test/Lower/HLFIR/assumed-rank-entry.f90
@@ -1,6 +1,6 @@
 ! Test assumed-rank dummy argument that is not present in
 ! all ENTRY statements.
-! RUN: bbc -emit-hlfir -allow-assumed-rank -o - %s | FileCheck %s
+! RUN: bbc -emit-hlfir -o - %s | FileCheck %s
 
 subroutine test_main_entry(x)
   real :: x(..)
diff --git a/flang/test/Lower/HLFIR/assumed-rank-inquiries-2.f90 b/flang/test/Lower/HLFIR/assumed-rank-inquiries-2.f90
index 6c8f5ba48d1bf..696b228bacee0 100644
--- a/flang/test/Lower/HLFIR/assumed-rank-inquiries-2.f90
+++ b/flang/test/Lower/HLFIR/assumed-rank-inquiries-2.f90
@@ -1,6 +1,6 @@
 ! Test lowering of SIZE/SIZEOF inquiry intrinsics with assumed-ranks
 ! arguments.
-! RUN: bbc -emit-hlfir -o - %s -allow-assumed-rank | FileCheck %s
+! RUN: bbc -emit-hlfir -o - %s | FileCheck %s
 
 
 subroutine test_size_1(x)
diff --git a/flang/test/Lower/HLFIR/assumed-rank-inquiries-3.f90 b/flang/test/Lower/HLFIR/assumed-rank-inquiries-3.f90
index fb44efcad3ce7..af89cb833b337 100644
--- a/flang/test/Lower/HLFIR/assumed-rank-inquiries-3.f90
+++ b/flang/test/Lower/HLFIR/assumed-rank-inquiries-3.f90
@@ -1,5 +1,5 @@
 ! Test shape lowering for assumed-rank
-! RUN: bbc -emit-hlfir -o - %s -allow-assumed-rank | FileCheck %s
+! RUN: bbc -emit-hlfir -o - %s | FileCheck %s
 
 subroutine test_shape(x)
   real :: x(..)
diff --git a/flang/test/Lower/HLFIR/assumed-rank-inquiries.f90 b/flang/test/Lower/HLFIR/assumed-rank-inquiries.f90
index a1d150a21d149..a94ae7da36593 100644
--- a/flang/test/Lower/HLFIR/assumed-rank-inquiries.f90
+++ b/flang/test/Lower/HLFIR/assumed-rank-inquiries.f90
@@ -1,5 +1,5 @@
 ! Test lowering of inquiry intrinsics with assumed-ranks arguments.
-! RUN: bbc -emit-hlfir -o - %s -allow-assumed-rank | FileCheck %s
+! RUN: bbc -emit-hlfir -o - %s | FileCheck %s
 
 subroutine test_allocated(x)
   real, allocatable :: x(..)
diff --git a/flang/test/Lower/HLFIR/assumed-rank-internal-proc.f90 b/flang/test/Lower/HLFIR/assumed-rank-internal-proc.f90
index f8d5e84696c5f..690ceb64a03cf 100644
--- a/flang/test/Lower/HLFIR/assumed-rank-internal-proc.f90
+++ b/flang/test/Lower/HLFIR/assumed-rank-internal-proc.f90
@@ -1,5 +1,5 @@
 ! Test assumed-rank capture inside internal procedures.
-! RUN: bbc -emit-hlfir -o - %s -allow-assumed-rank | FileCheck %s
+! RUN: bbc -emit-hlfir -o - %s | FileCheck %s
 
 subroutine test_assumed_rank(x)
   real :: x(..)
diff --git a/flang/test/Lower/HLFIR/convert-variable-assumed-rank.f90 b/flang/test/Lower/HLFIR/convert-variable-assumed-rank.f90
index 3b60b0d04e9fa..d2931eabb75c2 100644
--- a/flang/test/Lower/HLFIR/convert-variable-assumed-rank.f90
+++ b/flang/test/Lower/HLFIR/convert-variable-assumed-rank.f90
@@ -1,5 +1,5 @@
 ! Test lowering of assumed-rank variables
-! RUN: bbc -emit-hlfir %s -allow-assumed-rank -o - | FileCheck %s
+! RUN: bbc -emit-hlfir %s -o - | FileCheck %s
 
 module assumed_rank_tests
 interface
diff --git a/flang/test/Lower/HLFIR/select-rank.f90 b/flang/test/Lower/HLFIR/select-rank.f90
index d27a6d732ffc7..7135c248ea44d 100644
--- a/flang/test/Lower/HLFIR/select-rank.f90
+++ b/flang/test/Lower/HLFIR/select-rank.f90
@@ -1,5 +1,5 @@
 ! Test lowering of select rank to HLFIR
-! RUN: bbc -emit-hlfir -o - %s -allow-assumed-rank | FileCheck %s
+! RUN: bbc -emit-hlfir -o - %s | FileCheck %s
 
 module iface_helpers
 interface