master -merge latest changes from clang

CMakeLists.txt

@@ -583,6 +583,10 @@ if (CLANG_ENABLE_BOOTSTRAP)
     endif()
   endif()
 
+  if(CLANG_BOOTSTRAP_EXTRA_DEPS)
+    add_dependencies(clang-bootstrap-deps ${CLANG_BOOTSTRAP_EXTRA_DEPS})
+  endif()
+
   add_custom_target(${NEXT_CLANG_STAGE}-clear
     DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-cleared
     )
@@ -617,10 +621,15 @@ if (CLANG_ENABLE_BOOTSTRAP)
     LLVM_ENABLE_PROJECTS
     LLVM_ENABLE_RUNTIMES)
 
-  # We don't need to depend on compiler-rt if we're building instrumented
+  # We don't need to depend on compiler-rt/libcxx if we're building instrumented
   # because the next stage will use the same compiler used to build this stage.
-  if(TARGET compiler-rt AND NOT LLVM_BUILD_INSTRUMENTED)
-    add_dependencies(clang-bootstrap-deps compiler-rt)
+  if(NOT LLVM_BUILD_INSTRUMENTED)
+    if(TARGET compiler-rt)
+      add_dependencies(clang-bootstrap-deps compiler-rt)
+    endif()
+    if(TARGET cxx-headers)
+      add_dependencies(clang-bootstrap-deps cxx-headers)
+    endif()
   endif()
 
   set(C_COMPILER "clang")
@@ -749,6 +758,7 @@ endif()
 if (LLVM_ADD_NATIVE_VISUALIZERS_TO_SOLUTION)
   add_subdirectory(utils/ClangVisualizers)
 endif()
+add_subdirectory(utils/hmaptool)
 
 configure_file(
   ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake

LICENSE.TXT

@@ -4,7 +4,7 @@ LLVM Release License
 University of Illinois/NCSA
 Open Source License
 
-Copyright (c) 2007-2016 University of Illinois at Urbana-Champaign.
+Copyright (c) 2007-2018 University of Illinois at Urbana-Champaign.
 All rights reserved.
 
 Developed by:

bindings/python/tests/cindex/test_cdb.py

@@ -5,11 +5,13 @@
 import os
 import gc
 import unittest
+import sys
 
 
 kInputsDir = os.path.join(os.path.dirname(__file__), 'INPUTS')
 
 
+@unittest.skipIf(sys.platform == 'win32', "TODO: Fix these tests on Windows")
 class TestCDB(unittest.TestCase):
     def test_create_fail(self):
         """Check we fail loading a database with an assertion"""

bindings/python/tests/cindex/test_cursor.py

@@ -335,7 +335,7 @@ def test_enum_type(self):
 
         self.assertEqual(enum.kind, CursorKind.ENUM_DECL)
         enum_type = enum.enum_type
-        self.assertEqual(enum_type.kind, TypeKind.UINT)
+        self.assertIn(enum_type.kind, (TypeKind.UINT, TypeKind.INT))
 
     def test_enum_type_cpp(self):
         tu = get_tu('enum TEST : long long { FOO=1, BAR=2 };', lang="cpp")
@@ -561,4 +561,4 @@ def test_mangled_name(self):
         # all valid manglings.
         # [c-index-test handles this by running the source through clang, emitting
         #  an AST file and running libclang on that AST file]
-        self.assertIn(foo.mangled_name, ('_Z3fooii', '__Z3fooii', '?foo@@YAHHH'))
+        self.assertIn(foo.mangled_name, ('_Z3fooii', '__Z3fooii', '?foo@@YAHHH', '?foo@@YAHHH@Z'))

bindings/python/tests/cindex/test_translation_unit.py

@@ -1,3 +1,4 @@
+from contextlib import contextmanager
 import gc
 import os
 import tempfile
@@ -19,15 +20,15 @@
 kInputsDir = os.path.join(os.path.dirname(__file__), 'INPUTS')
 
 
+@contextmanager
 def save_tu(tu):
     """Convenience API to save a TranslationUnit to a file.
 
     Returns the filename it was saved to.
     """
-    _, path = tempfile.mkstemp()
-    tu.save(path)
-
-    return path
+    with tempfile.NamedTemporaryFile() as t:
+        tu.save(t.name)
+        yield t.name
 
 
 class TestTranslationUnit(unittest.TestCase):
@@ -125,10 +126,9 @@ def test_save(self):
 
         tu = get_tu('int foo();')
 
-        path = save_tu(tu)
-        self.assertTrue(os.path.exists(path))
-        self.assertGreater(os.path.getsize(path), 0)
-        os.unlink(path)
+        with save_tu(tu) as path:
+            self.assertTrue(os.path.exists(path))
+            self.assertGreater(os.path.getsize(path), 0)
 
     def test_save_translation_errors(self):
         """Ensure that saving to an invalid directory raises."""
@@ -149,21 +149,18 @@ def test_load(self):
 
         tu = get_tu('int foo();')
         self.assertEqual(len(tu.diagnostics), 0)
-        path = save_tu(tu)
-
-        self.assertTrue(os.path.exists(path))
-        self.assertGreater(os.path.getsize(path), 0)
-
-        tu2 = TranslationUnit.from_ast_file(filename=path)
-        self.assertEqual(len(tu2.diagnostics), 0)
+        with save_tu(tu) as path:
+            self.assertTrue(os.path.exists(path))
+            self.assertGreater(os.path.getsize(path), 0)
 
-        foo = get_cursor(tu2, 'foo')
-        self.assertIsNotNone(foo)
+            tu2 = TranslationUnit.from_ast_file(filename=path)
+            self.assertEqual(len(tu2.diagnostics), 0)
 
-        # Just in case there is an open file descriptor somewhere.
-        del tu2
+            foo = get_cursor(tu2, 'foo')
+            self.assertIsNotNone(foo)
 
-        os.unlink(path)
+            # Just in case there is an open file descriptor somewhere.
+            del tu2
 
     def test_index_parse(self):
         path = os.path.join(kInputsDir, 'hello.cpp')

cmake/caches/Fuchsia-stage2.cmake

@@ -8,6 +8,7 @@ set(PACKAGE_VENDOR Fuchsia CACHE STRING "")
 set(LLVM_INCLUDE_EXAMPLES OFF CACHE BOOL "")
 set(LLVM_INCLUDE_DOCS OFF CACHE BOOL "")
 set(LLVM_ENABLE_BACKTRACES OFF CACHE BOOL "")
+set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR ON CACHE BOOL "")
 set(LLVM_ENABLE_TERMINFO OFF CACHE BOOL "")
 set(LLVM_ENABLE_ZLIB ON CACHE BOOL "")
 set(LLVM_EXTERNALIZE_DEBUGINFO ON CACHE BOOL "")
@@ -27,69 +28,87 @@ set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "")
 set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O3 -gline-tables-only -DNDEBUG" CACHE STRING "")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O3 -gline-tables-only -DNDEBUG" CACHE STRING "")
 
-set(FUCHSIA_BUILTINS_BUILD_TYPE Release CACHE STRING "")
-set(FUCHSIA_RUNTIMES_BUILD_TYPE Release CACHE STRING "")
-set(FUCHSIA_RUNTIMES_ENABLE_ASSERTIONS ON CACHE BOOL "")
+if(APPLE)
+  list(APPEND BUILTIN_TARGETS "default")
+  list(APPEND RUNTIME_TARGETS "default")
+elseif(UNIX)
+  foreach(target i386;x86_64;armhf;aarch64)
+    if(LINUX_${target}_SYSROOT)
+      # Set the per-target builtins options.
+      list(APPEND BUILTIN_TARGETS "${target}-linux-gnu")
+      set(BUILTINS_${target}-linux-gnu_CMAKE_SYSTEM_NAME Linux CACHE STRING "")
+      set(BUILTINS_${target}-linux-gnu_CMAKE_BUILD_TYPE Release CACHE STRING "")
+      set(BUILTINS_${target}-linux-gnu_CMAKE_SYSROOT ${LINUX_${target}_SYSROOT} CACHE STRING "")
 
-set(LLVM_BUILTIN_TARGETS "default;x86_64-fuchsia;aarch64-fuchsia" CACHE STRING "")
+      # Set the per-target runtimes options.
+      list(APPEND RUNTIME_TARGETS "${target}-linux-gnu")
+      set(RUNTIMES_${target}-linux-gnu_CMAKE_SYSTEM_NAME Linux CACHE STRING "")
+      set(RUNTIMES_${target}-linux-gnu_CMAKE_BUILD_TYPE Release CACHE STRING "")
+      set(RUNTIMES_${target}-linux-gnu_CMAKE_SYSROOT ${LINUX_${target}_SYSROOT} CACHE STRING "")
+      set(RUNTIMES_${target}-linux-gnu_LLVM_ENABLE_ASSERTIONS ON CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBUNWIND_ENABLE_SHARED OFF CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBUNWIND_INSTALL_LIBRARY OFF CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBCXXABI_USE_LLVM_UNWINDER ON CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBCXXABI_ENABLE_STATIC_UNWINDER ON CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBCXXABI_INSTALL_LIBRARY OFF CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
+      set(RUNTIMES_${target}-linux-gnu_LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
+    endif()
+  endforeach()
+endif()
 
-# Set the per-target builtins options.
-foreach(target x86_64;aarch64)
-  set(BUILTINS_${target}-fuchsia_CMAKE_SYSTEM_NAME Fuchsia CACHE STRING "")
-  set(BUILTINS_${target}-fuchsia_CMAKE_BUILD_TYPE ${FUCHSIA_BUILTINS_BUILD_TYPE} CACHE STRING "")
-  set(BUILTINS_${target}-fuchsia_CMAKE_ASM_FLAGS ${FUCHSIA_${target}_C_FLAGS} CACHE PATH "")
-  set(BUILTINS_${target}-fuchsia_CMAKE_C_FLAGS ${FUCHSIA_${target}_C_FLAGS} CACHE PATH "")
-  set(BUILTINS_${target}-fuchsia_CMAKE_CXX_FLAGS ${FUCHSIA_${target}_CXX_FLAGS} CACHE PATH "")
-  set(BUILTINS_${target}-fuchsia_CMAKE_EXE_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
-  set(BUILTINS_${target}-fuchsia_CMAKE_SHARED_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
-  set(BUILTINS_${target}-fuchsia_CMAKE_MODULE_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
-  set(BUILTINS_${target}-fuchsia_CMAKE_SYSROOT ${FUCHSIA_${target}_SYSROOT} CACHE PATH "")
-endforeach()
+if(FUCHSIA_SDK)
+  set(FUCHSIA_aarch64_NAME arm64)
+  set(FUCHSIA_x86_64_NAME x64)
+  foreach(target x86_64;aarch64)
+    set(FUCHSIA_${target}_COMPILER_FLAGS "-I${FUCHSIA_SDK}/pkg/fdio/include")
+    set(FUCHSIA_${target}_LINKER_FLAGS "-L${FUCHSIA_SDK}/arch/${FUCHSIA_${target}_NAME}/lib")
+    set(FUCHSIA_${target}_SYSROOT "${FUCHSIA_SDK}/arch/${FUCHSIA_${target}_NAME}/sysroot")
+  endforeach()
 
-set(LLVM_RUNTIME_TARGETS "default;x86_64-fuchsia;aarch64-fuchsia;x86_64-fuchsia-asan:x86_64-fuchsia;aarch64-fuchsia-asan:aarch64-fuchsia" CACHE STRING "")
+  foreach(target x86_64;aarch64)
+    # Set the per-target builtins options.
+    list(APPEND BUILTIN_TARGETS "${target}-fuchsia")
+    set(BUILTINS_${target}-fuchsia_CMAKE_SYSTEM_NAME Fuchsia CACHE STRING "")
+    set(BUILTINS_${target}-fuchsia_CMAKE_BUILD_TYPE Release CACHE STRING "")
+    set(BUILTINS_${target}-fuchsia_CMAKE_ASM_FLAGS ${FUCHSIA_${target}_COMPILER_FLAGS} CACHE PATH "")
+    set(BUILTINS_${target}-fuchsia_CMAKE_C_FLAGS ${FUCHSIA_${target}_COMPILER_FLAGS} CACHE PATH "")
+    set(BUILTINS_${target}-fuchsia_CMAKE_CXX_FLAGS ${FUCHSIA_${target}_COMPILER_FLAGS} CACHE PATH "")
+    set(BUILTINS_${target}-fuchsia_CMAKE_SHARED_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
+    set(BUILTINS_${target}-fuchsia_CMAKE_MODULE_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
+    set(BUILTINS_${target}-fuchsia_CMAKE_EXE_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
+    set(BUILTINS_${target}-fuchsia_CMAKE_SYSROOT ${FUCHSIA_${target}_SYSROOT} CACHE PATH "")
 
-# Set the default target runtimes options.
-if(NOT APPLE)
-  set(LIBUNWIND_ENABLE_SHARED OFF CACHE BOOL "")
-  set(LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
-  set(LIBUNWIND_INSTALL_LIBRARY OFF CACHE BOOL "")
-  set(LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
-  set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
-  set(LIBCXXABI_USE_LLVM_UNWINDER ON CACHE BOOL "")
-  set(LIBCXXABI_ENABLE_STATIC_UNWINDER ON CACHE BOOL "")
-  set(LIBCXXABI_INSTALL_LIBRARY OFF CACHE BOOL "")
-  set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
-  set(LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
-  set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
-endif()
+    # Set the per-target runtimes options.
+    list(APPEND RUNTIME_TARGETS "${target}-fuchsia")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_SYSTEM_NAME Fuchsia CACHE STRING "")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_BUILD_TYPE Release CACHE STRING "")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_BUILD_WITH_INSTALL_RPATH ON CACHE STRING "")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_ASM_FLAGS ${FUCHSIA_${target}_COMPILER_FLAGS} CACHE PATH "")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_C_FLAGS ${FUCHSIA_${target}_COMPILER_FLAGS} CACHE PATH "")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_CXX_FLAGS ${FUCHSIA_${target}_COMPILER_FLAGS} CACHE PATH "")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_SHARED_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_MODULE_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_EXE_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
+    set(RUNTIMES_${target}-fuchsia_CMAKE_SYSROOT ${FUCHSIA_${target}_SYSROOT} CACHE PATH "")
+    set(RUNTIMES_${target}-fuchsia_LLVM_ENABLE_ASSERTIONS ON CACHE BOOL "")
+    set(RUNTIMES_${target}-fuchsia_LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
+    set(RUNTIMES_${target}-fuchsia_LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
+    set(RUNTIMES_${target}-fuchsia_LIBCXXABI_USE_LLVM_UNWINDER ON CACHE BOOL "")
+    set(RUNTIMES_${target}-fuchsia_LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
+    set(RUNTIMES_${target}-fuchsia_SANITIZER_USE_COMPILER_RT ON CACHE BOOL "")
+  endforeach()
 
-# Set the per-target runtimes options.
-foreach(target x86_64;aarch64)
-  set(RUNTIMES_${target}-fuchsia_CMAKE_SYSTEM_NAME Fuchsia CACHE STRING "")
-  set(RUNTIMES_${target}-fuchsia_CMAKE_BUILD_TYPE ${FUCHSIA_RUNTIMES_BUILD_TYPE} CACHE STRING "")
-  set(RUNTIMES_${target}-fuchsia_CMAKE_BUILD_WITH_INSTALL_RPATH ON CACHE STRING "")
-  set(RUNTIMES_${target}-fuchsia_CMAKE_ASM_FLAGS ${FUCHSIA_${target}_C_FLAGS} CACHE PATH "")
-  set(RUNTIMES_${target}-fuchsia_CMAKE_C_FLAGS ${FUCHSIA_${target}_C_FLAGS} CACHE PATH "")
-  set(RUNTIMES_${target}-fuchsia_CMAKE_CXX_FLAGS ${FUCHSIA_${target}_CXX_FLAGS} CACHE PATH "")
-  set(RUNTIMES_${target}-fuchsia_CMAKE_EXE_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
-  set(RUNTIMES_${target}-fuchsia_CMAKE_SHARED_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
-  set(RUNTIMES_${target}-fuchsia_CMAKE_MODULE_LINKER_FLAGS ${FUCHSIA_${target}_LINKER_FLAGS} CACHE PATH "")
-  set(RUNTIMES_${target}-fuchsia_CMAKE_SYSROOT ${FUCHSIA_${target}_SYSROOT} CACHE PATH "")
-  set(RUNTIMES_${target}-fuchsia_LLVM_ENABLE_ASSERTIONS ${FUCHSIA_RUNTIMES_ENABLE_ASSERTIONS} CACHE BOOL "")
-  set(RUNTIMES_${target}-fuchsia_LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
-  set(RUNTIMES_${target}-fuchsia_LIBUNWIND_ENABLE_STATIC OFF CACHE BOOL "")
-  set(RUNTIMES_${target}-fuchsia_LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
-  set(RUNTIMES_${target}-fuchsia_LIBCXXABI_USE_LLVM_UNWINDER ON CACHE BOOL "")
-  set(RUNTIMES_${target}-fuchsia_LIBCXXABI_ENABLE_STATIC OFF CACHE BOOL "")
-  set(RUNTIMES_${target}-fuchsia_LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
-  set(RUNTIMES_${target}-fuchsia_LIBCXX_ENABLE_STATIC OFF CACHE BOOL "")
-  set(RUNTIMES_${target}-fuchsia_SANITIZER_USE_COMPILER_RT ON CACHE BOOL "")
+  set(LLVM_RUNTIME_SANITIZERS "Address" CACHE STRING "")
+  set(LLVM_RUNTIME_SANITIZER_Address_TARGETS "x86_64-fuchsia;aarch64-fuchsia" CACHE STRING "")
+endif()
 
-  set(RUNTIMES_${target}-fuchsia-asan_LLVM_USE_SANITIZER Address CACHE STRING "")
-  set(RUNTIMES_${target}-fuchsia-asan_LLVM_RUNTIMES_PREFIX "${target}-fuchsia/" CACHE STRING "")
-  set(RUNTIMES_${target}-fuchsia-asan_LLVM_RUNTIMES_LIBDIR_SUFFIX "/asan" CACHE STRING "")
-  set(RUNTIMES_${target}-fuchsia-asan_LIBCXX_INSTALL_HEADERS OFF CACHE BOOL "")
-endforeach()
+set(LLVM_BUILTIN_TARGETS "${BUILTIN_TARGETS}" CACHE STRING "")
+set(LLVM_RUNTIME_TARGETS "${RUNTIME_TARGETS}" CACHE STRING "")
 
 # Setup toolchain.
 set(LLVM_INSTALL_TOOLCHAIN_ONLY ON CACHE BOOL "")

cmake/caches/Fuchsia.cmake

@@ -7,10 +7,11 @@ set(PACKAGE_VENDOR Fuchsia CACHE STRING "")
 set(LLVM_INCLUDE_EXAMPLES OFF CACHE BOOL "")
 set(LLVM_INCLUDE_TESTS OFF CACHE BOOL "")
 set(LLVM_INCLUDE_DOCS OFF CACHE BOOL "")
-set(CLANG_INCLUDE_TESTS OFF CACHE BOOL "")
 set(LLVM_ENABLE_BACKTRACES OFF CACHE BOOL "")
+set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR ON CACHE BOOL "")
 set(LLVM_ENABLE_TERMINFO OFF CACHE BOOL "")
 set(LLVM_ENABLE_ZLIB OFF CACHE BOOL "")
+set(CLANG_INCLUDE_TESTS OFF CACHE BOOL "")
 set(CLANG_PLUGIN_SUPPORT OFF CACHE BOOL "")
 
 set(LLVM_ENABLE_ASSERTIONS ON CACHE BOOL "")
@@ -21,10 +22,25 @@ if(NOT APPLE)
   set(BOOTSTRAP_LLVM_ENABLE_LLD ON CACHE BOOL "")
 endif()
 
+set(CLANG_DEFAULT_CXX_STDLIB libc++ CACHE STRING "")
+set(CLANG_DEFAULT_RTLIB compiler-rt CACHE STRING "")
+
 if(APPLE)
   set(COMPILER_RT_ENABLE_IOS OFF CACHE BOOL "")
   set(COMPILER_RT_ENABLE_TVOS OFF CACHE BOOL "")
   set(COMPILER_RT_ENABLE_WATCHOS OFF CACHE BOOL "")
+elseif(UNIX)
+  set(LIBUNWIND_ENABLE_SHARED OFF CACHE BOOL "")
+  set(LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
+  set(LIBUNWIND_INSTALL_LIBRARY OFF CACHE BOOL "")
+  set(LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
+  set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
+  set(LIBCXXABI_USE_LLVM_UNWINDER ON CACHE BOOL "")
+  set(LIBCXXABI_ENABLE_STATIC_UNWINDER ON CACHE BOOL "")
+  set(LIBCXXABI_INSTALL_LIBRARY OFF CACHE BOOL "")
+  set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
+  set(LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
+  set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
 endif()
 
 set(CLANG_BOOTSTRAP_TARGETS
@@ -51,6 +67,10 @@ endforeach()
 
 # Setup the bootstrap build.
 set(CLANG_ENABLE_BOOTSTRAP ON CACHE BOOL "")
+set(CLANG_BOOTSTRAP_EXTRA_DEPS
+  builtins
+  runtimes
+  CACHE STRING "")
 set(CLANG_BOOTSTRAP_CMAKE_ARGS
   ${EXTRA_ARGS}
   -C ${CMAKE_CURRENT_LIST_DIR}/Fuchsia-stage2.cmake

docs/AddressSanitizer.rst

@@ -197,13 +197,17 @@ this purpose.
 Disabling Instrumentation with ``__attribute__((no_sanitize("address")))``
 --------------------------------------------------------------------------
 
-Some code should not be instrumented by AddressSanitizer. One may use the
-function attribute ``__attribute__((no_sanitize("address")))`` (which has
-deprecated synonyms `no_sanitize_address` and `no_address_safety_analysis`) to
-disable instrumentation of a particular function. This attribute may not be
-supported by other compilers, so we suggest to use it together with
+Some code should not be instrumented by AddressSanitizer. One may use
+the attribute ``__attribute__((no_sanitize("address")))`` (which has
+deprecated synonyms `no_sanitize_address` and
+`no_address_safety_analysis`) to disable instrumentation of a
+particular function. This attribute may not be supported by other
+compilers, so we suggest to use it together with
 ``__has_feature(address_sanitizer)``.
 
+The same attribute used on a global variable prevents AddressSanitizer
+from adding redzones around it and detecting out of bounds accesses.
+
 Suppressing Errors in Recompiled Code (Blacklist)
 -------------------------------------------------
 

docs/ClangCommandLineReference.rst

@@ -1934,6 +1934,12 @@ Set the default symbol visibility for all global declarations
 
 Enables whole-program vtable optimization. Requires -flto
 
+.. option:: -fforce-emit-vtables, -fno-force-emit-vtables
+
+In order to improve devirtualization, forces emitting of vtables even in
+modules where it isn't necessary. It causes more inline virtual functions
+to be emitted.
+
 .. option:: -fwrapv, -fno-wrapv
 
 Treat signed integer overflow as two's complement
@@ -2296,6 +2302,10 @@ AARCH64
 
 Reserve the x18 register (AArch64 only)
 
+.. option:: -ffixed-x20
+
+Reserve the x20 register (AArch64 only)
+
 .. option:: -mfix-cortex-a53-835769, -mno-fix-cortex-a53-835769
 
 Workaround Cortex-A53 erratum 835769 (AArch64 only)