Reapply an improved version of r180816/180817.

Do not generate VLAs as complex variables any more, as they are now
correctly represented as breg+0 locations in the backend.

(Paired commit with LLVM: r185966)

rdar://problem/13658587

llvm-svn: 185967

1 files changed, 0 insertions, 16 deletions

diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index ec5447add46..e5fb06a7437 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -2671,22 +2671,6 @@ void CGDebugInfo::EmitDeclare(const VarDecl *VD, unsigned Tag,
         DBuilder.insertDeclare(Storage, D, Builder.GetInsertBlock());
       Call->setDebugLoc(llvm::DebugLoc::get(Line, Column, Scope));
       return;
-    } else if (isa<VariableArrayType>(VD->getType())) {
-      // These are "complex" variables in that they need an op_deref.
-      // Create the descriptor for the variable.
-      llvm::Value *Addr = llvm::ConstantInt::get(CGM.Int64Ty,
-                                                 llvm::DIBuilder::OpDeref);
-      llvm::DIVariable D =
-        DBuilder.createComplexVariable(Tag,
-                                       llvm::DIDescriptor(Scope),
-                                       Name, Unit, Line, Ty,
-                                       Addr, ArgNo);
-
-      // Insert an llvm.dbg.declare into the current block.
-      llvm::Instruction *Call =
-        DBuilder.insertDeclare(Storage, D, Builder.GetInsertBlock());
-      Call->setDebugLoc(llvm::DebugLoc::get(Line, Column, Scope));
-      return;
     }
   } else if (const RecordType *RT = dyn_cast<RecordType>(VD->getType())) {
     // If VD is an anonymous union then Storage represents value for