Merge LLVM 8.0.0 release.

Prepared with help from jsg@ and mortimer@
Tested on amd64 by bcallah@, krw@, naddy@
Tested on arm64 by patrick@
Tested on macppc by kettenis@
Tested on octeon by visa@
Tested on sparc64 by claudio@

1 files changed, 7 insertions, 20 deletions

diff --git a/gnu/llvm/tools/clang/lib/Frontend/InitHeaderSearch.cpp b/gnu/llvm/tools/clang/lib/Frontend/InitHeaderSearch.cpp
index a3901e5fb91..67842b5dca2 100644
--- a/gnu/llvm/tools/clang/lib/Frontend/InitHeaderSearch.cpp
+++ b/gnu/llvm/tools/clang/lib/Frontend/InitHeaderSearch.cpp
@@ -260,6 +260,7 @@ void InitHeaderSearch::AddDefaultCIncludePaths(const llvm::Triple &triple,
 
   switch (os) {
   case llvm::Triple::Linux:
+  case llvm::Triple::Hurd:
   case llvm::Triple::Solaris:
     llvm_unreachable("Include management is handled in the driver.");
 
@@ -412,6 +413,7 @@ void InitHeaderSearch::AddDefaultCPlusPlusIncludePaths(
 
   switch (os) {
   case llvm::Triple::Linux:
+  case llvm::Triple::Hurd:
   case llvm::Triple::Solaris:
     llvm_unreachable("Include management is handled in the driver.");
     break;
@@ -452,6 +454,7 @@ void InitHeaderSearch::AddDefaultIncludePaths(const LangOptions &Lang,
     break; // Everything else continues to use this routine's logic.
 
   case llvm::Triple::Linux:
+  case llvm::Triple::Hurd:
   case llvm::Triple::Solaris:
     return;
 
@@ -465,22 +468,6 @@ void InitHeaderSearch::AddDefaultIncludePaths(const LangOptions &Lang,
   if (Lang.CPlusPlus && !Lang.AsmPreprocessor &&
       HSOpts.UseStandardCXXIncludes && HSOpts.UseStandardSystemIncludes) {
     if (HSOpts.UseLibcxx) {
-      if (triple.isOSDarwin()) {
-        // On Darwin, libc++ may be installed alongside the compiler in
-        // include/c++/v1.
-        if (!HSOpts.ResourceDir.empty()) {
-          // Remove version from foo/lib/clang/version
-          StringRef NoVer = llvm::sys::path::parent_path(HSOpts.ResourceDir);
-          // Remove clang from foo/lib/clang
-          StringRef Lib = llvm::sys::path::parent_path(NoVer);
-          // Remove lib from foo/lib
-          SmallString<128> P = llvm::sys::path::parent_path(Lib);
-
-          // Get foo/include/c++/v1
-          llvm::sys::path::append(P, "include", "c++", "v1");
-          AddUnmappedPath(P, CXXSystem, false);
-        }
-      }
       AddPath("/usr/include/c++/v1", CXXSystem, false);
     } else {
       AddDefaultCPlusPlusIncludePaths(Lang, triple, HSOpts);
@@ -608,11 +595,11 @@ void InitHeaderSearch::Realize(const LangOptions &Lang) {
 
   for (auto &Include : IncludePath)
     if (Include.first == System || Include.first == ExternCSystem ||
-        (!Lang.ObjC1 && !Lang.CPlusPlus && Include.first == CSystem) ||
-        (/*FIXME !Lang.ObjC1 && */ Lang.CPlusPlus &&
+        (!Lang.ObjC && !Lang.CPlusPlus && Include.first == CSystem) ||
+        (/*FIXME !Lang.ObjC && */ Lang.CPlusPlus &&
          Include.first == CXXSystem) ||
-        (Lang.ObjC1 && !Lang.CPlusPlus && Include.first == ObjCSystem) ||
-        (Lang.ObjC1 && Lang.CPlusPlus && Include.first == ObjCXXSystem))
+        (Lang.ObjC && !Lang.CPlusPlus && Include.first == ObjCSystem) ||
+        (Lang.ObjC && Lang.CPlusPlus && Include.first == ObjCXXSystem))
       SearchList.push_back(Include.second);
 
   for (auto &Include : IncludePath)