diff --git a/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake b/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
--- a/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
+++ b/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
@@ -416,9 +416,20 @@
         EXCLUDE ${arch}_${os}_EXCLUDED_BUILTINS
         ${${arch}_SOURCES})
 
+      if("${arch}" MATCHES "^(arm64|arm64e)$")
+        add_custom_target(
+          lse_builtin_symlinks
+          BYPRODUCTS ${lse_builtins}
+          ${arm64_lse_commands}
+        )
+
+        set(deps_${arch} lse_builtin_symlinks)
+      endif()
+
       darwin_add_builtin_library(clang_rt builtins
                               OS ${os}
                               ARCH ${arch}
+                              DEPS ${deps_${arch}}
                               SOURCES ${filtered_sources}
                               CFLAGS ${CFLAGS} -arch ${arch}
                               PARENT_TARGET builtins)
diff --git a/compiler-rt/lib/builtins/CMakeLists.txt b/compiler-rt/lib/builtins/CMakeLists.txt
--- a/compiler-rt/lib/builtins/CMakeLists.txt
+++ b/compiler-rt/lib/builtins/CMakeLists.txt
@@ -531,10 +531,8 @@
     foreach(model 1 2 3 4)
       if(pat STREQUAL "cas" OR NOT size STREQUAL "16")
         set(helper_asm "${OA_HELPERS_DIR}/outline_atomic_${pat}${size}_${model}.S")
-        add_custom_command(
-          OUTPUT ${helper_asm}
-          COMMAND ${CMAKE_COMMAND} -E ${COMPILER_RT_LINK_OR_COPY} "${CMAKE_CURRENT_SOURCE_DIR}/aarch64/lse.S" "${helper_asm}"
-        )
+        list(APPEND lse_builtins "${helper_asm}")
+        list(APPEND arm64_lse_commands COMMAND ${CMAKE_COMMAND} -E ${COMPILER_RT_LINK_OR_COPY} "${CMAKE_CURRENT_SOURCE_DIR}/aarch64/lse.S" "${helper_asm}")
         set_source_files_properties("${helper_asm}"
           PROPERTIES
           COMPILE_DEFINITIONS "L_${pat};SIZE=${size};MODEL=${model}"
@@ -741,9 +739,20 @@
         list(APPEND BUILTIN_CFLAGS_${arch} -fforce-enable-int128)
       endif()
 
+      if("${arch}" STREQUAL "aarch64")
+        add_custom_target(
+          lse_builtin_symlinks
+          BYPRODUCTS ${lse_builtins}
+          ${arm64_lse_commands}
+        )
+
+        set(deps_${arch} lse_builtin_symlinks)
+      endif()
+
       add_compiler_rt_runtime(clang_rt.builtins
                               STATIC
                               ARCHS ${arch}
+                              DEPS ${deps_${arch}}
                               SOURCES ${${arch}_SOURCES}
                               DEFS ${BUILTIN_DEFS}
                               CFLAGS ${BUILTIN_CFLAGS_${arch}}