Update llvm/clang to trunk r126547.

There are several bugfixes in this update, but the most important one is
to ensure __start_ and __stop_ symbols for linker sets and kernel module
metadata are always emitted in object files:

  http://llvm.org/bugs/show_bug.cgi?id=9292

Before this fix, if you compiled kernel modules with clang, they would
not be properly processed by kldxref, and if they had any dependencies,
the kernel would fail to load those.  Another problem occurred when
attempting to mount a tmpfs filesystem, which would result in 'operation
not supported by device'.

1 files changed, 11 insertions, 1 deletions

diff --git a/contrib/llvm/tools/clang/lib/CodeGen/CGDebugInfo.h b/contrib/llvm/tools/clang/lib/CodeGen/CGDebugInfo.h
index 6a9ab9c..a390788 100644
--- a/contrib/llvm/tools/clang/lib/CodeGen/CGDebugInfo.h
+++ b/contrib/llvm/tools/clang/lib/CodeGen/CGDebugInfo.h
@@ -123,7 +123,10 @@ class CGDebugInfo {
                        llvm::SmallVectorImpl<llvm::Value *> &EltTys,
                        llvm::DIType RecordTy);
 
-
+  llvm::DIType createFieldType(llvm::StringRef name, QualType type,
+                               Expr *bitWidth, SourceLocation loc,
+                               AccessSpecifier AS, uint64_t offsetInBits,
+                               llvm::DIFile tunit);
   void CollectRecordFields(const RecordDecl *Decl, llvm::DIFile F,
                            llvm::SmallVectorImpl<llvm::Value *> &E);
 
@@ -180,6 +183,13 @@ public:
   void EmitDeclareOfArgVariable(const VarDecl *Decl, llvm::Value *AI,
                                 CGBuilderTy &Builder);
 
+  /// EmitDeclareOfBlockLiteralArgVariable - Emit call to
+  /// llvm.dbg.declare for the block-literal argument to a block
+  /// invocation function.
+  void EmitDeclareOfBlockLiteralArgVariable(const CGBlockInfo &block,
+                                            llvm::Value *addr,
+                                            CGBuilderTy &Builder);
+
   /// EmitGlobalVariable - Emit information about a global variable.
   void EmitGlobalVariable(llvm::GlobalVariable *GV, const VarDecl *Decl);