Allow compiler-rt test targets to work with multi-config CMake generators

Multi-config CMake generators need lit to be able to resolve paths of
artifacts from previous build steps at lit time, rather than expect them
to be fully resolved at CMake time as they may contain the build mode.

Differential Revision: https://reviews.llvm.org/D38471

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318037 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 26 insertions, 14 deletions

diff --git a/cmake/Modules/AddCompilerRT.cmake b/cmake/Modules/AddCompilerRT.cmake
index 700c31f16..c50afbcab 100644
--- a/cmake/Modules/AddCompilerRT.cmake
+++ b/cmake/Modules/AddCompilerRT.cmake
@@ -508,3 +508,14 @@ function(rt_externalize_debuginfo name)
     message(FATAL_ERROR "COMPILER_RT_EXTERNALIZE_DEBUGINFO isn't implemented for non-darwin platforms!")
   endif()
 endfunction()
+
+
+# Configure lit configuration files, including compiler-rt specific variables.
+function(configure_compiler_rt_lit_site_cfg input output)
+  set_llvm_build_mode()
+
+  string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_TEST_COMPILER ${COMPILER_RT_TEST_COMPILER})
+  string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR ${COMPILER_RT_LIBRARY_OUTPUT_DIR})
+
+  configure_lit_site_cfg(${input} ${output})
+endfunction()
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 0acf87bc8..ab16f42d3 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1,7 +1,7 @@
-# Needed for lit support
+# Needed for lit support in standalone builds.
 include(AddLLVM)
 
-configure_lit_site_cfg(
+configure_compiler_rt_lit_site_cfg(
   ${CMAKE_CURRENT_SOURCE_DIR}/lit.common.configured.in
   ${CMAKE_CURRENT_BINARY_DIR}/lit.common.configured)
 
diff --git a/test/lit.common.cfg b/test/lit.common.cfg
index 26fbea046..af4bf007c 100644
--- a/test/lit.common.cfg
+++ b/test/lit.common.cfg
@@ -27,11 +27,6 @@ config.test_format = lit.formats.ShTest(execute_external)
 if execute_external:
   config.available_features.add('shell')
 
-# Setup clang binary.
-compiler_path = getattr(config, 'clang', None)
-if (not compiler_path) or (not os.path.exists(compiler_path)):
-  lit_config.fatal("Can't find compiler on path %r" % compiler_path)
-
 compiler_id = getattr(config, 'compiler_id', None)
 if compiler_id == "Clang":
   if platform.system() != 'Windows':
diff --git a/test/lit.common.configured.in b/test/lit.common.configured.in
index b49e8eb9a..c39a2e4af 100644
--- a/test/lit.common.configured.in
+++ b/test/lit.common.configured.in
@@ -16,14 +16,14 @@ set_default("llvm_src_root", "@LLVM_MAIN_SRC_DIR@")
 set_default("llvm_obj_root", "@LLVM_BINARY_DIR@")
 set_default("compiler_rt_src_root", "@COMPILER_RT_SOURCE_DIR@")
 set_default("compiler_rt_obj_root", "@COMPILER_RT_BINARY_DIR@")
-set_default("llvm_tools_dir", "@LLVM_TOOLS_BINARY_DIR@")
+set_default("llvm_tools_dir", "@LLVM_TOOLS_DIR@")
 set_default("llvm_shlib_dir", "@LLVM_LIBRARY_OUTPUT_INTDIR@")
 set_default("gold_executable", "@GOLD_EXECUTABLE@")
-set_default("clang", "@COMPILER_RT_TEST_COMPILER@")
+set_default("clang", "@COMPILER_RT_RESOLVED_TEST_COMPILER@")
 set_default("compiler_id", "@COMPILER_RT_TEST_COMPILER_ID@")
 set_default("python_executable", "@PYTHON_EXECUTABLE@")
 set_default("compiler_rt_debug", @COMPILER_RT_DEBUG_PYBOOL@)
-set_default("compiler_rt_libdir", "@COMPILER_RT_LIBRARY_OUTPUT_DIR@")
+set_default("compiler_rt_libdir", "@COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR@")
 set_default("emulator", "@COMPILER_RT_EMULATOR@")
 set_default("ios", False)
 set_default("iossim", False)
@@ -39,9 +39,14 @@ config.available_features.add('target-is-%s' % config.target_arch)
 # apply substitution.
 try:
   config.llvm_tools_dir = config.llvm_tools_dir % lit_config.params
+  config.clang = config.clang % lit_config.params
+  config.compiler_rt_libdir = config.compiler_rt_libdir % lit_config.params
 except KeyError as e:
   key, = e.args
   lit_config.fatal("unable to find %r parameter, use '--param=%s=VALUE'" % (key, key))
 
+if not os.path.exists(config.clang):
+  lit_config.fatal("Can't find compiler on path %r" % config.clang)
+
 # Setup attributes common for all compiler-rt projects.
 lit_config.load_config(config, "@COMPILER_RT_SOURCE_DIR@/test/lit.common.cfg")
diff --git a/unittests/CMakeLists.txt b/unittests/CMakeLists.txt
index e5059bd91..88f9865a6 100644
--- a/unittests/CMakeLists.txt
+++ b/unittests/CMakeLists.txt
@@ -1,6 +1,6 @@
-# Needed for lit support
+# Needed for lit support in standalone builds.
 include(AddLLVM)
 
-configure_lit_site_cfg(
+configure_compiler_rt_lit_site_cfg(
   ${CMAKE_CURRENT_SOURCE_DIR}/lit.common.unit.configured.in
   ${CMAKE_CURRENT_BINARY_DIR}/lit.common.unit.configured)
diff --git a/unittests/lit.common.unit.configured.in b/unittests/lit.common.unit.configured.in
index dd36985fe..fafac19b7 100644
--- a/unittests/lit.common.unit.configured.in
+++ b/unittests/lit.common.unit.configured.in
@@ -4,9 +4,9 @@
 config.target_triple = "@TARGET_TRIPLE@"
 config.llvm_src_root = "@LLVM_MAIN_SRC_DIR@"
 config.llvm_obj_root = "@LLVM_BINARY_DIR@"
-config.llvm_tools_dir = "@LLVM_TOOLS_BINARY_DIR@"
+config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"
 config.compiler_rt_src_root = "@COMPILER_RT_SOURCE_DIR@"
-config.compiler_rt_libdir = "@COMPILER_RT_LIBRARY_OUTPUT_DIR@"
+config.compiler_rt_libdir = "@COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR@"
 config.llvm_build_mode = "@LLVM_BUILD_MODE@"
 config.host_arch = "@HOST_ARCH@"
 config.host_os = "@HOST_OS@"
@@ -15,6 +15,7 @@ config.host_os = "@HOST_OS@"
 # so try to apply substitution.
 try:
   config.llvm_tools_dir = config.llvm_tools_dir % lit_config.params
+  config.compiler_rt_libdir = config.compiler_rt_libdir % lit_config.params
   config.llvm_build_mode = config.llvm_build_mode % lit_config.params
 except KeyError as e:
   key, = e.args