[polly] r313335 - Revert "[lit] Force site configs to run before source-tree configs"

Zachary Turner via llvm-commits llvm-commits at lists.llvm.org
Thu Sep 14 19:56:40 PDT 2017


Author: zturner
Date: Thu Sep 14 19:56:40 2017
New Revision: 313335

URL: http://llvm.org/viewvc/llvm-project?rev=313335&view=rev
Log:
Revert "[lit] Force site configs to run before source-tree configs"

This patch is still breaking several multi-stage compiler-rt bots.
I already know what the fix is, but I want to get the bots green
for now and then try re-applying in the morning.

Modified:
    polly/trunk/test/Unit/lit.cfg
    polly/trunk/test/lit.cfg

Modified: polly/trunk/test/Unit/lit.cfg
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/test/Unit/lit.cfg?rev=313335&r1=313334&r2=313335&view=diff
==============================================================================
--- polly/trunk/test/Unit/lit.cfg (original)
+++ polly/trunk/test/Unit/lit.cfg Thu Sep 14 19:56:40 2017
@@ -19,11 +19,14 @@ config.suffixes = []
 
 # test_source_root: The root path where tests are located.
 # test_exec_root: The root path where tests should be run.
-config.test_exec_root = os.path.join(config.polly_obj_root, 'unittests')
-config.test_source_root = config.test_exec_root
+polly_obj_root = getattr(config, 'polly_obj_root', None)
+if polly_obj_root is not None:
+    config.test_exec_root = os.path.join(polly_obj_root, 'unittests')
+    config.test_source_root = config.test_exec_root
 
 # testFormat: The test format to use to interpret tests.
-config.test_format = lit.formats.GoogleTest(config.llvm_build_mode, 'Tests')
+llvm_build_mode = getattr(config, 'llvm_build_mode', "Debug")
+config.test_format = lit.formats.GoogleTest(llvm_build_mode, 'Tests')
 
 # Propagate the temp directory. Windows requires this because it uses \Windows\
 # if none of these are present.
@@ -37,6 +40,55 @@ for symbolizer in ['ASAN_SYMBOLIZER_PATH
     if symbolizer in os.environ:
         config.environment[symbolizer] = os.environ[symbolizer]
 
+###
+
+# Check that the object root is known.
+if config.test_exec_root is None:
+    # Otherwise, we haven't loaded the site specific configuration (the user is
+    # probably trying to run on a test file directly, and either the site
+    # configuration hasn't been created by the build system, or we are in an
+    # out-of-tree build situation).
+
+    # Check for 'polly_unit_site_config' user parameter, and use that if available.
+    site_cfg = lit_config.params.get('polly_unit_site_config', None)
+    if site_cfg and os.path.exists(site_cfg):
+        lit_config.load_config(config, site_cfg)
+        raise SystemExit
+
+    # Try to detect the situation where we are using an out-of-tree build by
+    # looking for 'llvm-config'.
+    #
+    # FIXME: I debated (i.e., wrote and threw away) adding logic to
+    # automagically generate the lit.site.cfg if we are in some kind of fresh
+    # build situation. This means knowing how to invoke the build system
+    # though, and I decided it was too much magic.
+
+    llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
+    if not llvm_config:
+        lit_config.fatal('No site specific configuration available!')
+
+    # Get the source and object roots.
+    llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
+    llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
+    polly_src_root = os.path.join(llvm_src_root, "tools", "polly")
+    polly_obj_root = os.path.join(llvm_obj_root, "tools", "polly")
+
+    # Validate that we got a tree which points to here, using the standard
+    # tools/clang layout.
+    this_src_root = os.path.join(os.path.dirname(__file__),'..','..')
+    if os.path.realpath(polly_src_root) != os.path.realpath(this_src_root):
+        lit_config.fatal('No site specific configuration available!')
+
+    # Check that the site specific configuration exists.
+    site_cfg = os.path.join(polly_obj_root, 'test', 'Unit', 'lit.site.cfg')
+    if not os.path.exists(site_cfg):
+        lit_config.fatal('No site specific configuration available!')
+
+    # Okay, that worked. Notify the user of the automagic, and reconfigure.
+    lit_config.note('using out-of-tree build at %r' % polly_obj_root)
+    lit_config.load_config(config, site_cfg)
+    raise SystemExit
+
 shlibpath_var = ''
 if platform.system() == 'Linux':
     shlibpath_var = 'LD_LIBRARY_PATH'
@@ -46,7 +98,10 @@ elif platform.system() == 'Windows':
     shlibpath_var = 'PATH'
 
 # Point the dynamic loader at dynamic libraries in 'lib'.
-shlibpath = os.path.pathsep.join((config.llvm_libs_dir,
+llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
+if not llvm_libs_dir:
+    lit_config.fatal('No LLVM libs dir set!')
+shlibpath = os.path.pathsep.join((llvm_libs_dir,
                                  config.environment.get(shlibpath_var,'')))
 
 # Win32 seeks DLLs along %PATH%.

Modified: polly/trunk/test/lit.cfg
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/test/lit.cfg?rev=313335&r1=313334&r2=313335&view=diff
==============================================================================
--- polly/trunk/test/lit.cfg (original)
+++ polly/trunk/test/lit.cfg Thu Sep 14 19:56:40 2017
@@ -27,25 +27,90 @@ config.suffixes = ['.ll']
 config.test_source_root = os.path.dirname(__file__)
 
 # test_exec_root: The root path where tests should be run.
-config.test_exec_root = os.path.join(config.polly_obj_root, 'test')
+polly_obj_root = getattr(config, 'polly_obj_root', None)
+if polly_obj_root is not None:
+    config.test_exec_root = os.path.join(polly_obj_root, 'test')
+
+# Set llvm_{src,obj}_root for use by others.
+config.llvm_src_root = getattr(config, 'llvm_src_root', None)
+config.llvm_obj_root = getattr(config, 'llvm_obj_root', None)
 
 # Tweak the PATH to include the tools dir and the scripts dir.
-base_paths = [config.llvm_tools_dir, config.environment['PATH']]
-path = os.path.pathsep.join(base_paths + config.extra_paths)
-config.environment['PATH'] = path
-
-path = os.path.pathsep.join((config.llvm_libs_dir,
-                              config.environment.get('LD_LIBRARY_PATH','')))
-config.environment['LD_LIBRARY_PATH'] = path
+if polly_obj_root is not None:
+    llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
+    if not llvm_tools_dir:
+        lit_config.fatal('No LLVM tools dir set!')
+    extra_paths = getattr(config, 'extra_paths', [])
+    base_paths = [llvm_tools_dir, config.environment['PATH']]
+    path = os.path.pathsep.join(base_paths + extra_paths)
+    config.environment['PATH'] = path
+
+    llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
+    if not llvm_libs_dir:
+        lit_config.fatal('No LLVM libs dir set!')
+    path = os.path.pathsep.join((llvm_libs_dir,
+                                 config.environment.get('LD_LIBRARY_PATH','')))
+    config.environment['LD_LIBRARY_PATH'] = path
+
+###
+
+# Check that the object root is known.
+if config.test_exec_root is None:
+    # Otherwise, we haven't loaded the site specific configuration (the user is
+    # probably trying to run on a test file directly, and either the site
+    # configuration hasn't been created by the build system, or we are in an
+    # out-of-tree build situation).
+
+    # Check for 'polly_site_config' user parameter, and use that if available.
+    site_cfg = lit_config.params.get('polly_site_config', None)
+    if site_cfg and os.path.exists(site_cfg):
+        lit_config.load_config(config, site_cfg)
+        raise SystemExit
+
+    # Try to detect the situation where we are using an out-of-tree build by
+    # looking for 'llvm-config'.
+    #
+    # FIXME: I debated (i.e., wrote and threw away) adding logic to
+    # automagically generate the lit.site.cfg if we are in some kind of fresh
+    # build situation. This means knowing how to invoke the build system though,
+    # and I decided it was too much magic. We should solve this by just having
+    # the .cfg files generated during the configuration step.
+
+    llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
+    if not llvm_config:
+        lit_config.fatal('No site specific configuration available!')
+
+    # Get the source and object roots.
+    llvm_src_root = subprocess.check_output(['llvm-config', '--src-root']).decode("utf-8").strip()
+    llvm_obj_root = subprocess.check_output(['llvm-config', '--obj-root']).decode("utf-8").strip()
+
+    polly_src_root = os.path.join(llvm_src_root, "tools", "polly")
+    polly_obj_root = os.path.join(llvm_obj_root, "tools", "polly")
+
+    # Validate that we got a tree which points to here, using the standard
+    # tools/polly layout.
+    this_src_root = os.path.dirname(config.test_source_root)
+    if os.path.realpath(polly_src_root) != os.path.realpath(this_src_root):
+        lit_config.fatal('No site specific configuration available!')
+
+    # Check that the site specific configuration exists.
+    site_cfg = os.path.join(polly_obj_root, 'test', 'lit.site.cfg')
+    if not os.path.exists(site_cfg):
+        lit_config.fatal('No site specific configuration available!')
+
+    # Okay, that worked. Notify the user of the automagic, and reconfigure.
+    lit_config.note('using out-of-tree build at %r' % polly_obj_root)
+    lit_config.load_config(config, site_cfg)
+    raise SystemExit
 
 # opt knows whether it is compiled with -DNDEBUG.
 import subprocess
 try:
-    opt_cmd = subprocess.Popen([os.path.join(config.llvm_tools_dir, 'opt'), '-version'],
+    opt_cmd = subprocess.Popen([os.path.join(llvm_tools_dir, 'opt'), '-version'],
                            stdout = subprocess.PIPE,
                            env=config.environment)
 except OSError:
-    print("Could not find opt in " + config.llvm_tools_dir)
+    print("Could not find opt in " + llvm_tools_dir)
     exit(42)
 
 if re.search(r'with assertions', opt_cmd.stdout.read().decode('ascii')):
@@ -53,14 +118,13 @@ if re.search(r'with assertions', opt_cmd
 opt_cmd.wait()
 
 try:
-    llvm_config_cmd = subprocess.Popen([os.path.join(
-                                        config.llvm_tools_dir,
-                                        'llvm-config'),
+    llvm_config_cmd = subprocess.Popen([os.path.join(llvm_tools_dir,
+                                                     'llvm-config'),
                                         '--targets-built'],
                                        stdout = subprocess.PIPE,
                                        env=config.environment)
 except OSError:
-    print("Could not find llvm-config in " + config.llvm_tools_dir)
+    print("Could not find llvm-config in " + llvm_tools_dir)
     exit(42)
 
 if re.search(r'NVPTX', llvm_config_cmd.stdout.read().decode('ascii')):




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