update LLVM sources to 15.0.0

README.md

@@ -8,7 +8,7 @@ end with a fully operational Zig compiler for any target.
 This repository copies sources from upstream. Patches listed below. Use git
 to find and inspect the patch diffs.
 
- * LLVM, LLD, Clang 14.0.6
+ * LLVM, LLD, Clang 15.0.0
  * zlib 1.2.12
  * zig 0.10.0-dev.3742+d2ad8afff
 

clang/CMakeLists.txt

@@ -191,7 +191,9 @@ if(CLANG_BUILT_STANDALONE)
     else()
       set(LLVM_INCLUDE_TESTS OFF)
     endif()
-  endif()
+
+    umbrella_lit_testsuite_begin(check-all)
+  endif() # LLVM_INCLUDE_TESTS
 
   set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
 else()
@@ -245,7 +247,18 @@ set(PPC_LINUX_DEFAULT_IEEELONGDOUBLE OFF CACHE BOOL
 set(CLANG_SPAWN_CC1 OFF CACHE BOOL
     "Whether clang should use a new process for the CC1 invocation")
 
-option(CLANG_DEFAULT_PIE_ON_LINUX "Default to -fPIE and -pie on Linux" OFF)
+option(CLANG_DEFAULT_PIE_ON_LINUX "Default to -fPIE and -pie on linux-gnu" ON)
+
+# Manually handle default so we can change the meaning of a cached default.
+set(CLANG_ENABLE_OPAQUE_POINTERS "DEFAULT" CACHE STRING
+    "Enable opaque pointers by default")
+if(CLANG_ENABLE_OPAQUE_POINTERS STREQUAL "DEFAULT")
+  set(CLANG_ENABLE_OPAQUE_POINTERS_INTERNAL ON)
+elseif(CLANG_ENABLE_OPAQUE_POINTERS)
+  set(CLANG_ENABLE_OPAQUE_POINTERS_INTERNAL ON)
+else()
+  set(CLANG_ENABLE_OPAQUE_POINTERS_INTERNAL OFF)
+endif()
 
 # TODO: verify the values against LangStandards.def?
 set(CLANG_DEFAULT_STD_C "" CACHE STRING
@@ -353,6 +366,10 @@ endif()
 # The libdir suffix must exactly match whatever LLVM's configuration used.
 set(CLANG_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}")
 
+set(CLANG_TOOLS_INSTALL_DIR "${CMAKE_INSTALL_BINDIR}" CACHE PATH
+    "Path for binary subdirectory (defaults to '${CMAKE_INSTALL_BINDIR}')")
+mark_as_advanced(CLANG_TOOLS_INSTALL_DIR)
+
 set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
 
@@ -403,7 +420,7 @@ endif ()
 
 # Determine HOST_LINK_VERSION on Darwin.
 set(HOST_LINK_VERSION)
-if (APPLE)
+if (APPLE AND NOT CMAKE_LINKER MATCHES ".*lld.*")
   set(LD_V_OUTPUT)
   execute_process(
     COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"
@@ -499,6 +516,12 @@ if(CLANG_ENABLE_ARCMT)
   set(CLANG_ENABLE_OBJC_REWRITER ON)
 endif()
 
+# This option is a stop-gap, we should commit to removing this as
+# soon as possible. See discussion:
+# https://discourse.llvm.org/t/rationale-for-removing-versioned-libclang-middle-ground-to-keep-it-behind-option/
+option(CLANG_FORCE_MATCHING_LIBCLANG_SOVERSION
+  "Force the SOVERSION of libclang to be equal to CLANG_MAJOR" ON)
+
 # Clang version information
 set(CLANG_EXECUTABLE_VERSION
     "${CLANG_VERSION_MAJOR}" CACHE STRING
@@ -537,6 +560,7 @@ add_subdirectory(tools)
 add_subdirectory(runtime)
 
 option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF)
+add_subdirectory(examples)
 
 if(APPLE)
   # this line is needed as a cleanup to ensure that any CMakeCaches with the old
@@ -573,21 +597,7 @@ if( CLANG_INCLUDE_TESTS )
   add_subdirectory(bindings/python/tests)
 
   if(CLANG_BUILT_STANDALONE)
-    # Add a global check rule now that all subdirectories have been traversed
-    # and we know the total set of lit testsuites.
-    get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
-    get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
-    get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)
-    get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
-    get_property(LLVM_ADDITIONAL_TEST_TARGETS
-                 GLOBAL PROPERTY LLVM_ADDITIONAL_TEST_TARGETS)
-    add_lit_target(check-all
-      "Running all regression tests"
-      ${LLVM_LIT_TESTSUITES}
-      PARAMS ${LLVM_LIT_PARAMS}
-      DEPENDS ${LLVM_LIT_DEPENDS} ${LLVM_ADDITIONAL_TEST_TARGETS}
-      ARGS ${LLVM_LIT_EXTRA_ARGS}
-      )
+    umbrella_lit_testsuite_end(check-all)
   endif()
   add_subdirectory(utils/perf-training)
 endif()