Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp

8.0.1 final release r366581.  The only functional change is a fix for a
mismerge of upstream r360816, which properly restores the r2 register
when unwinding on PowerPC64 (See https://reviews.freebsd.org/D20337).

Relnotes:	yes
PR:		236062
MFC after:	3 days
X-MFC-With:	r349004

contrib/libunwind/src/assembly.h

@@ -117,7 +117,9 @@
   .globl SYMBOL_NAME(name) SEPARATOR                      \
   HIDDEN_SYMBOL(SYMBOL_NAME(name)) SEPARATOR              \
   SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR             \
-  SYMBOL_NAME(name):
+  PPC64_OPD1                                              \
+  SYMBOL_NAME(name):                                      \
+  PPC64_OPD2
 
 #if defined(__arm__)
 #if !defined(__ARM_ARCH)

contrib/llvm/tools/clang/lib/Basic/Version.cpp

@@ -36,7 +36,7 @@ std::string getClangRepositoryPath() {
 
   // If the SVN_REPOSITORY is empty, try to use the SVN keyword. This helps us
   // pick up a tag in an SVN export, for example.
-  StringRef SVNRepository("$URL: https://llvm.org/svn/llvm-project/cfe/branches/release_80/lib/Basic/Version.cpp $");
+  StringRef SVNRepository("$URL: https://llvm.org/svn/llvm-project/cfe/tags/RELEASE_801/final/lib/Basic/Version.cpp $");
   if (URL.empty()) {
     URL = SVNRepository.slice(SVNRepository.find(':'),
                               SVNRepository.find("/lib/Basic"));

lib/clang/include/clang/Basic/Version.inc

@@ -8,4 +8,4 @@
 
 #define	CLANG_VENDOR			"FreeBSD "
 
-#define	SVN_REVISION			"364487"
+#define	SVN_REVISION			"366581"

lib/clang/include/lld/Common/Version.inc

@@ -7,4 +7,4 @@
 
 #define LLD_REPOSITORY_STRING "FreeBSD"
 // <Upstream revision at import>-<Local identifier in __FreeBSD_version style>
-#define LLD_REVISION_STRING "364487-1300004"
+#define LLD_REVISION_STRING "366581-1300004"

lib/clang/include/llvm/Support/VCSRevision.h

@@ -1,2 +1,2 @@
 /* $FreeBSD$ */
-#define LLVM_REVISION "svn-r364487"
+#define LLVM_REVISION "svn-r366581"