This has similar effect as simply deleting the static libraries which we don't
want after installation. By not copying them in the first place we reduce the
disk usage during installation.

Index: clang-13.0.1.src/cmake/modules/AddClang.cmake
===================================================================
--- a/clang-13.0.1.src/cmake/modules/AddClang.cmake
+++ b/clang-13.0.1.src/cmake/modules/AddClang.cmake
@@ -106,12 +106,15 @@ macro(add_clang_library name)
 
       if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ARG_INSTALL_WITH_TOOLCHAIN)
         get_target_export_arg(${name} Clang export_to_clangtargets UMBRELLA clang-libraries)
-        install(TARGETS ${lib}
-          COMPONENT ${lib}
-          ${export_to_clangtargets}
-          LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
-          ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
-          RUNTIME DESTINATION bin)
+        if (ARG_SHARED OR ARG_MODULE)
+          install(TARGETS ${lib}
+            COMPONENT ${lib}
+            ${export_to_clangtargets}
+            LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
+            ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
+            RUNTIME DESTINATION bin)
+          set_property(GLOBAL APPEND PROPERTY CLANG_EXPORTS ${lib})
+        endif()
 
         if (NOT LLVM_ENABLE_IDE)
           add_llvm_install_targets(install-${lib}
@@ -121,7 +124,6 @@ macro(add_clang_library name)
 
         set_property(GLOBAL APPEND PROPERTY CLANG_LIBS ${lib})
       endif()
-      set_property(GLOBAL APPEND PROPERTY CLANG_EXPORTS ${lib})
     else()
       # Add empty "phony" target
       add_custom_target(${lib})
Index: cmake/modules/AddLLVM.cmake
===================================================================
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -730,11 +730,14 @@ macro(add_llvm_library name)
       endif()
 
       get_target_export_arg(${name} LLVM export_to_llvmexports ${umbrella})
-      install(TARGETS ${name}
-              ${export_to_llvmexports}
-              LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
-              ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
-              RUNTIME DESTINATION bin COMPONENT ${name})
+      if(ARG_SHARED OR ARG_MODULE OR NOT LLVM_BUILD_LLVM_DYLIB)
+        install(TARGETS ${name}
+                ${export_to_llvmexports}
+                LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
+                ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
+                RUNTIME DESTINATION bin COMPONENT ${name})
+        set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
+      endif()
 
       if (NOT LLVM_ENABLE_IDE)
         add_llvm_install_targets(install-${name}
@@ -742,7 +745,6 @@ macro(add_llvm_library name)
                                  COMPONENT ${name})
       endif()
     endif()
-    set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
   endif()
   if (ARG_MODULE)
     set_target_properties(${name} PROPERTIES FOLDER "Loadable modules")
Index: lld-13.0.1.src/cmake/modules/AddLLD.cmake
===================================================================
--- a/lld-13.0.1.src/cmake/modules/AddLLD.cmake
+++ b/lld-13.0.1.src/cmake/modules/AddLLD.cmake
@@ -17,13 +17,6 @@ macro(add_lld_library name)
 
   if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
     get_target_export_arg(${name} LLD export_to_lldtargets)
-    install(TARGETS ${name}
-      COMPONENT ${name}
-      ${export_to_lldtargets}
-      LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
-      ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
-      RUNTIME DESTINATION bin)
-
     if (${ARG_SHARED} AND NOT CMAKE_CONFIGURATION_TYPES)
       add_llvm_install_targets(install-${name}
         DEPENDS ${name}
Index: polly-13.0.1.src/cmake/polly_macros.cmake
===================================================================
--- a/polly-13.0.1.src/cmake/polly_macros.cmake
+++ b/polly-13.0.1.src/cmake/polly_macros.cmake
@@ -42,12 +42,14 @@ macro(add_polly_library name)
     llvm_config(${name} ${LLVM_LINK_COMPONENTS})
   endif( LLVM_LINK_COMPONENTS )
   if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "LLVMPolly")
-    install(TARGETS ${name}
-      EXPORT LLVMExports
-      LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
-      ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
+    if (MODULE OR SHARED_LIBRARY OR NOT LLVM_BUILD_LLVM_DYLIB)
+      install(TARGETS ${name}
+        EXPORT LLVMExports
+        LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
+        ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
+      set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
+    endif()
   endif()
-  set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
 endmacro(add_polly_library)
 
 macro(add_polly_loadable_module name)
Index: polly-13.0.1.src/lib/CMakeLists.txt
===================================================================
--- a/polly-13.0.1.src/lib/CMakeLists.txt
+++ b/polly-13.0.1.src/lib/CMakeLists.txt
@@ -74,7 +74,7 @@ set_target_properties(PollyCore PROPERTI
 # It depends on all library it needs, such that with
 # LLVM_POLLY_LINK_INTO_TOOLS=ON, its dependencies like PollyISL are linked as
 # well.
-target_link_libraries(Polly PUBLIC
+target_link_libraries(Polly PRIVATE
   ${ISL_TARGET}
 )
 
@@ -143,7 +143,7 @@ else ()
   # hosts. This is not the case for bugpoint. Use LLVM_POLLY_LINK_INTO_TOOLS=ON
   # instead which will automatically resolve the additional dependencies by
   # Polly.
-  target_link_libraries(LLVMPolly PUBLIC ${ISL_TARGET})
+  target_link_libraries(LLVMPolly PRIVATE ${ISL_TARGET})
   if (GPU_CODEGEN)
     target_link_libraries(LLVMPolly PUBLIC PollyPPCG)
   endif ()