Remove bitcode autodebugger (autodebugger.py) (#12145)

This was only used in fastcomp builds.  AFAICT the llvm
backend uses binaryen passes to do this stuff.

See: #11860

tests/test_core.py

@@ -20,7 +20,7 @@
   raise Exception('do not run this file directly; do something like: tests/runner.py')
 
 from tools.shared import try_delete, PIPE
-from tools.shared import NODE_JS, V8_ENGINE, JS_ENGINES, SPIDERMONKEY_ENGINE, PYTHON, EMCC, EMAR, WINDOWS, MACOS, AUTODEBUGGER, LLVM_ROOT
+from tools.shared import NODE_JS, V8_ENGINE, JS_ENGINES, SPIDERMONKEY_ENGINE, PYTHON, EMCC, EMAR, WINDOWS, MACOS, LLVM_ROOT
 from tools import shared, building
 from runner import RunnerCore, path_from_root, requires_native_clang
 from runner import skip_if, no_wasm_backend, needs_dlfcn, no_windows, no_asmjs, is_slow_test, create_test_file, parameterized
@@ -6301,28 +6301,6 @@ def run_all(x):
 
     run_all('lto')
 
-  def test_autodebug_bitcode(self):
-    if '-flto' not in self.get_emcc_args():
-      return self.skipTest('must use bitcode object files for bitcode autodebug')
-
-    self.emcc_args += ['--llvm-opts', '0']
-
-    # Run a test that should work, generating some code
-    test_path = path_from_root('tests', 'core', 'test_structs.c')
-    src = test_path + '.c'
-    output = test_path + '.out'
-    self.do_run_from_file(src, output)
-
-    filename = 'out'
-    self.run_process([EMCC, '-c', src, '-o', filename + '.o'] + self.get_emcc_args())
-
-    # Autodebug the code
-    objfile = filename + '.o'
-    building.llvm_dis(objfile, filename + '.ll')
-    self.run_process([PYTHON, AUTODEBUGGER, filename + '.ll', filename + '.auto.ll'])
-    building.llvm_as(filename + '.auto.ll', objfile)
-    self.do_run_object(objfile, 'AD:-1,1')
-
   @also_with_standalone_wasm(wasm2c=True, impure=True)
   @no_asan('autodebug logging interferes with asan')
   @with_env_modify({'EMCC_AUTODEBUG': '1'})

tools/shared.py

@@ -1714,7 +1714,6 @@ def read_and_preprocess(filename, expand_macros=False):
 EMXX = bat_suffix(path_from_root('em++'))
 EMAR = bat_suffix(path_from_root('emar'))
 EMRANLIB = bat_suffix(path_from_root('emranlib'))
-AUTODEBUGGER = path_from_root('tools', 'autodebugger.py')
 FILE_PACKAGER = path_from_root('tools', 'file_packager.py')
 
 apply_configuration()