Revert "[DebugInfo] Generate debug information for labels. (Fix PR37395)"

This reverts commit r341519, which generates debug info that causes
backend crashes. (with -split-dwarf-file)

Details in https://reviews.llvm.org/D50495

llvm-svn: 341549

1 files changed, 0 insertions, 26 deletions

diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index 17a24258548..ac22dde9f96 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -3769,32 +3769,6 @@ CGDebugInfo::EmitDeclareOfAutoVariable(const VarDecl *VD, llvm::Value *Storage,
   return EmitDeclare(VD, Storage, llvm::None, Builder);
 }
 
-void CGDebugInfo::EmitLabel(const LabelDecl *D, CGBuilderTy &Builder) {
-  assert(DebugKind >= codegenoptions::LimitedDebugInfo);
-  assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!");
-
-  if (D->hasAttr<NoDebugAttr>())
-    return;
-
-  auto *Scope = cast<llvm::DIScope>(LexicalBlockStack.back());
-  llvm::DIFile *Unit = getOrCreateFile(D->getLocation());
-
-  // Get location information.
-  unsigned Line = getLineNumber(D->getLocation());
-  unsigned Column = getColumnNumber(D->getLocation());
-
-  StringRef Name = D->getName();
-
-  // Create the descriptor for the label.
-  auto *L =
-      DBuilder.createLabel(Scope, Name, Unit, Line, CGM.getLangOpts().Optimize);
-
-  // Insert an llvm.dbg.label into the current block.
-  DBuilder.insertLabel(L,
-                       llvm::DebugLoc::get(Line, Column, Scope, CurInlinedAt),
-                       Builder.GetInsertBlock());
-}
-
 llvm::DIType *CGDebugInfo::CreateSelfType(const QualType &QualTy,
                                           llvm::DIType *Ty) {
   llvm::DIType *CachedTy = getTypeOrNull(QualTy);