r180823 - Revert 180817 because 180816 was reverted.

[Adrian Prantl]

Author: adrian
Date: Tue Apr 30 17:45:09 2013
New Revision: 180823

URL: http://llvm.org/viewvc/llvm-project?rev=180823&view=rev
Log:
Revert 180817 because 180816 was reverted.

Modified:
    cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
    cfe/trunk/test/CodeGen/debug-info-vla.c

Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=180823&r1=180822&r2=180823&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Tue Apr 30 17:45:09 2013
@@ -2511,6 +2511,22 @@ void CGDebugInfo::EmitDeclare(const VarD
         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

Modified: cfe/trunk/test/CodeGen/debug-info-vla.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/debug-info-vla.c?rev=180823&r1=180822&r2=180823&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/debug-info-vla.c (original)
+++ cfe/trunk/test/CodeGen/debug-info-vla.c Tue Apr 30 17:45:09 2013
@@ -1,8 +1,9 @@
 // RUN: %clang_cc1 -emit-llvm -g -triple x86_64-apple-darwin %s -o - | FileCheck %s
 
+// CHECK: metadata !{i32 {{.*}}, metadata {{.*}}, metadata !"vla", metadata {{.*}}, i32 7, metadata {{.*}}, i32 0, i32 0, i64 2} ; [ DW_TAG_auto_variable ]
+
 void testVLAwithSize(int s)
 {
-// CHECK: metadata !{i32 {{.*}}, metadata {{.*}}, metadata !"vla", metadata {{.*}}, i32 [[@LINE+1]], metadata {{.*}}, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [vla] [line [[@LINE+1]]]
   int vla[s];
   int i;
   for (i = 0; i < s; i++) {