Merge branch 'master' into pre-rc8

Cherry-picked from commit 628e418df1a009e0d073545cbef3604350e7b808

    Update Checked C clang compiler to latest LLVM sources, by merging the
    Checked C changes into recent LLVM sources.  The LLVM sources are
    approximately at where RC1 for v8.0 was forked.

    Testing:
    - Passes all Checked C clang tests.
    - Passes all but 2 clang tests.  Those are pre-existing failures in the
    LLVM sources that we're merging with.

llvm/.gitmodules

@@ -0,0 +1,6 @@
+[submodule "tools/clang"]
+	path = tools/clang
+	url = https://github.com/Microsoft/checkedc-clang 
+[submodule "projects/checkedc-wrapper/checkedc"]
+	path = projects/checkedc-wrapper/checkedc
+	url = https://github.com/Microsoft/checkedc

llvm/CMakeLists.txt

@@ -204,22 +204,22 @@ option(LLVM_APPEND_VC_REV
 
 set(PACKAGE_NAME LLVM)
 set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
-set(PACKAGE_BUGREPORT "https://bugs.llvm.org/")
+set(PACKAGE_BUGREPORT "https://github.com/Microsoft/checkedc-clang/issues")
 
 set(BUG_REPORT_URL "${PACKAGE_BUGREPORT}" CACHE STRING
   "Default URL where bug reports are to be submitted.")
 
 # Configure CPack.
-set(CPACK_PACKAGE_INSTALL_DIRECTORY "LLVM")
-set(CPACK_PACKAGE_VENDOR "LLVM")
+set(CPACK_PACKAGE_INSTALL_DIRECTORY "CheckedC-LLVM")
+set(CPACK_PACKAGE_VENDOR "Microsoft")
 set(CPACK_PACKAGE_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
 set(CPACK_PACKAGE_VERSION_MINOR ${LLVM_VERSION_MINOR})
 set(CPACK_PACKAGE_VERSION_PATCH ${LLVM_VERSION_PATCH})
 set(CPACK_PACKAGE_VERSION ${PACKAGE_VERSION})
 set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.TXT")
 set(CPACK_NSIS_COMPRESSOR "/SOLID lzma \r\n SetCompressorDictSize 32")
 if(WIN32 AND NOT UNIX)
-  set(CPACK_PACKAGE_INSTALL_REGISTRY_KEY "LLVM")
+  set(CPACK_PACKAGE_INSTALL_REGISTRY_KEY "CheckedC-LLVM")
   set(CPACK_PACKAGE_ICON "${CMAKE_CURRENT_SOURCE_DIR}\\\\cmake\\\\nsis_logo.bmp")
   set(CPACK_NSIS_MUI_ICON "${CMAKE_CURRENT_SOURCE_DIR}\\\\cmake\\\\nsis_icon.ico")
   set(CPACK_NSIS_MUI_UNIICON "${CMAKE_CURRENT_SOURCE_DIR}\\\\cmake\\\\nsis_icon.ico")
@@ -456,6 +456,12 @@ else()
   set(LINK_POLLY_INTO_TOOLS OFF)
 endif()
 
+if (EXISTS ${LLVM_MAIN_SRC_DIR}/projects/checkedc-wrapper/checkedc)
+  set(CHECKEDC_IN_TREE TRUE)
+else()
+  set(CHECKEDC_IN_TREE FALSE)
+endif()
+
 # Define an option controlling whether we should build for 32-bit on 64-bit
 # platforms, where supported.
 if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )

llvm/projects/checkedc-wrapper/CMakeLists.txt

@@ -0,0 +1,64 @@
+# This script adds the Checked C tests to the LLVM tests infrastructure,
+# provided that the Checked C repo exists as a subdirectory.
+
+# LLVM uses the CMake meta-build system to generate the build system.
+# The build system includes targets for running tests.
+#
+# The script adds a new target for running Checked C tests.
+# To do that, it sets up  the information needed by the LIT tool.
+
+if(CHECKEDC_IN_TREE)
+  add_subdirectory(checkedc/include)
+
+  set(CHECKEDC_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+  set(CHECKEDC_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
+
+
+  if (CMAKE_CFG_INTDIR STREQUAL ".")
+    set(LLVM_BUILD_MODE ".")
+  else ()
+    set(LLVM_BUILD_MODE "%(build_mode)s")
+  endif ()
+
+  string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} CLANG_TOOLS_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
+
+  configure_lit_site_cfg(
+    ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
+    ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
+    )
+
+  list(APPEND CHECKEDC_TEST_DEPS
+    clang clang-headers checkedc-headers
+    )
+
+  if(CLANG_ENABLE_STATIC_ANALYZER)
+    list(APPEND CLANG_TEST_DEPS
+      clang-check
+      )
+  endif()
+
+  set(CHECKEDC_TEST_PARAMS
+    checkedc_site_config=${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
+    )
+
+if( NOT CLANG_BUILT_STANDALONE )
+  list(APPEND CHECKEDC_TEST_DEPS
+    llvm-config
+    FileCheck count not
+    opt
+    )
+endif()
+
+  add_custom_target(checkedc-test-depends DEPENDS ${CHECKEDC_TEST_DEPS})
+
+  add_lit_testsuite(check-checkedc "Running the Checked C regression tests"
+    ${CMAKE_CURRENT_BINARY_DIR}
+    #LIT ${LLVM_LIT}
+    PARAMS ${CHECKEDC_TEST_PARAMS}
+    DEPENDS ${CHECKEDC_TEST_DEPS}
+    ARGS ${CHECKEDC_TEST_EXTRA_ARGS}
+    )
+
+  set_target_properties(check-checkedc PROPERTIES FOLDER "Checked C tests")
+
+endif()

llvm/projects/checkedc-wrapper/README.md

@@ -0,0 +1,31 @@
+# Summary
+
+Checked C is a research project to extend C with
+static and dynamic checking to detect or prevent
+common programming errors. 
+
+This directory contains LLVM-specific files for 
+testing the LLVM implementation of Checked C.
+The files include build system files and LLVM
+test infrastructure configuration files.
+
+Checked C is a separate project from LLVM.
+The specification for Checked C and the tests
+for Checked C reside in a separate repo on
+Github.   To use those tests, clone the
+Checked C repo to this directory:
+
+git clone https://github.com/Microsoft/checkedc
+
+## Why this directory exists.
+
+You might wonder why these files were not
+placed directly into the Checked C repo,
+allowing us to elide this directory entirely.
+The build and test infrastructure configuration
+files are derived directly from existing LLVM files,
+so they are subject the LLVM license and copyright
+terms.  The Checked C repo is subject to the MIT
+conflicting licenses in the repo, just for a few files.
+
+

llvm/projects/checkedc-wrapper/checkedc

@@ -0,0 +1 @@
+Subproject commit bc45607280f8ca1c4fc3208f3409b34749c1f728