[RFC][debuginfo-test] Rename debug-info lit tests for general purposes

Discussion thread:
https://lists.llvm.org/pipermail/llvm-dev/2021-January/148048.html

Move debuginfo-test into a subdirectory of a new top-level directory,
called cross-project-tests. The new name replaces "debuginfo-test" as an
LLVM project enabled via LLVM_ENABLE_PROJECTS.

Differential Revision: https://reviews.llvm.org/D95339

Reviewed by: aprantl

Author: jh7370

README.md

@@ -5,7 +5,7 @@
 find_package(Python3 COMPONENTS Interpreter)
 
 add_llvm_executable(check-gdb-llvm-support
-        llvm-prettyprinters/gdb/llvm-support.cpp
+        debuginfo-tests/llvm-prettyprinters/gdb/llvm-support.cpp
 )
 target_link_libraries(check-gdb-llvm-support PRIVATE LLVMSupport)
 
@@ -24,7 +24,7 @@ set(DEBUGINFO_TEST_DEPS
 
 if ("mlir" IN_LIST LLVM_ENABLE_PROJECTS)
   add_llvm_executable(check-gdb-mlir-support
-        llvm-prettyprinters/gdb/mlir-support.cpp
+        debuginfo-tests/llvm-prettyprinters/gdb/mlir-support.cpp
   )
   target_include_directories(check-gdb-mlir-support PRIVATE
                                ${LLVM_EXTERNAL_MLIR_SOURCE_DIR}/include
@@ -61,7 +61,7 @@ configure_lit_site_cfg(
   ${CMAKE_CURRENT_SOURCE_DIR}/lit.cfg.py
   )
 
-add_lit_testsuite(check-debuginfo "Running debug info integration tests"
+add_lit_testsuite(check-debuginfo "Running cross-project tests"
   ${CMAKE_CURRENT_BINARY_DIR}
   DEPENDS ${DEBUGINFO_TEST_DEPS}
   )
@@ -71,4 +71,4 @@ add_lit_testsuites(DEBUGINFO ${CMAKE_CURRENT_SOURCE_DIR}
   DEPENDS ${DEBUGINFO_TEST_DEPS}
   )
 
-set_target_properties(check-debuginfo PROPERTIES FOLDER "Debug info tests")
+set_target_properties(check-debuginfo PROPERTIES FOLDER "Tests")

debuginfo-tests/CMakeLists.txt renamed to cross-project-tests/CMakeLists.txt

@@ -32,7 +32,7 @@
 config.excludes = ['Inputs']
 
 # test_source_root: The root path where tests are located.
-config.test_source_root = os.path.join(config.debuginfo_tests_src_root)
+config.test_source_root = config.debuginfo_tests_src_root
 
 # test_exec_root: The root path where tests should be run.
 config.test_exec_root = config.debuginfo_tests_obj_root
@@ -41,7 +41,8 @@
 
 tools = [
     ToolSubst('%test_debuginfo', command=os.path.join(
-        config.debuginfo_tests_src_root, 'llgdb-tests', 'test_debuginfo.pl')),
+        config.debuginfo_tests_src_root, 'debuginfo-tests',
+        'llgdb-tests', 'test_debuginfo.pl')),
     ToolSubst("%llvm_src_root", config.llvm_src_root),
     ToolSubst("%llvm_tools_dir", config.llvm_tools_dir),
 ]
@@ -126,7 +127,7 @@ def can_target_host():
 # Produce dexter path, lldb path, and combine into the %dexter substitution
 # for running a test.
 dexter_path = os.path.join(config.debuginfo_tests_src_root,
-                           'dexter', 'dexter.py')
+                           'debuginfo-tests', 'dexter', 'dexter.py')
 dexter_test_cmd = '"{}" "{}" test'.format(sys.executable, dexter_path)
 if lldb_path is not None:
   dexter_test_cmd += ' --lldb-executable "{}"'.format(lldb_path)

debuginfo-tests/README.txt renamed to cross-project-tests/debuginfo-tests/README.txt

@@ -64,7 +64,7 @@ endif()
 # LLVM_EXTERNAL_${project}_SOURCE_DIR using LLVM_ALL_PROJECTS
 # This allows an easy way of setting up a build directory for llvm and another
 # one for llvm+clang+... using the same sources.
-set(LLVM_ALL_PROJECTS "clang;clang-tools-extra;compiler-rt;debuginfo-tests;libc;libclc;libcxx;libcxxabi;libunwind;lld;lldb;mlir;openmp;parallel-libs;polly;pstl")
+set(LLVM_ALL_PROJECTS "clang;clang-tools-extra;compiler-rt;cross-project-tests;libc;libclc;libcxx;libcxxabi;libunwind;lld;lldb;mlir;openmp;parallel-libs;polly;pstl")
 # The flang project is not yet part of "all" projects (see C++ requirements)
 set(LLVM_EXTRA_PROJECTS "flang")
 # List of all known projects in the mono repo

debuginfo-tests/dexter-tests/aggregate-indirect-arg.cpp renamed to cross-project-tests/debuginfo-tests/dexter-tests/aggregate-indirect-arg.cpp

@@ -12,7 +12,7 @@ foreach(entry ${entries})
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/test-suite) AND
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/parallel-libs) AND
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/openmp) AND
-       (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/debuginfo-tests))
+       (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/cross-project-tests))
       get_filename_component(entry_name "${entry}" NAME)
       add_llvm_external_project(${entry_name})
     endif()
@@ -45,5 +45,5 @@ add_llvm_external_project(parallel-libs)
 add_llvm_external_project(openmp)
 
 if(LLVM_INCLUDE_TESTS)
-  add_llvm_external_project(debuginfo-tests)
+  add_llvm_external_project(cross-project-tests)
 endif()